зеркало из https://github.com/mozilla/gecko-dev.git
10066 строки
364 KiB
C++
10066 строки
364 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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/*
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* structures that represent things to be painted (ordered in z-order),
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* used during painting and hit testing
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*/
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#include "nsDisplayList.h"
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#include <stdint.h>
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#include <algorithm>
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#include <limits>
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#include "gfxContext.h"
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#include "gfxUtils.h"
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#include "mozilla/dom/TabChild.h"
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#include "mozilla/dom/KeyframeEffect.h"
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#include "mozilla/dom/Selection.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/layers/PLayerTransaction.h"
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#include "nsCSSRendering.h"
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#include "nsCSSRenderingGradients.h"
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#include "nsISelectionController.h"
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#include "nsIPresShell.h"
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#include "nsRegion.h"
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#include "nsStyleStructInlines.h"
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#include "nsStyleTransformMatrix.h"
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#include "gfxMatrix.h"
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#include "gfxPrefs.h"
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#include "nsSVGIntegrationUtils.h"
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#include "nsSVGUtils.h"
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#include "nsLayoutUtils.h"
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#include "nsIScrollableFrame.h"
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#include "nsIFrameInlines.h"
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#include "nsThemeConstants.h"
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#include "BorderConsts.h"
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#include "LayerTreeInvalidation.h"
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#include "mozilla/MathAlgorithms.h"
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#include "imgIContainer.h"
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#include "BasicLayers.h"
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#include "nsBoxFrame.h"
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#include "nsImageFrame.h"
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#include "nsSubDocumentFrame.h"
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#include "SVGObserverUtils.h"
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#include "nsSVGElement.h"
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#include "nsSVGClipPathFrame.h"
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#include "GeckoProfiler.h"
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#include "nsViewManager.h"
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#include "ImageLayers.h"
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#include "ImageContainer.h"
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#include "nsCanvasFrame.h"
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#include "StickyScrollContainer.h"
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#include "mozilla/AnimationPerformanceWarning.h"
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#include "mozilla/AnimationUtils.h"
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#include "mozilla/EffectCompositor.h"
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#include "mozilla/EffectSet.h"
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#include "mozilla/EventStates.h"
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#include "mozilla/LookAndFeel.h"
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#include "mozilla/OperatorNewExtensions.h"
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#include "mozilla/PendingAnimationTracker.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/StyleAnimationValue.h"
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#include "mozilla/ServoBindings.h"
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#include "mozilla/Telemetry.h"
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#include "mozilla/UniquePtr.h"
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#include "mozilla/Unused.h"
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#include "mozilla/ViewportFrame.h"
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#include "mozilla/gfx/gfxVars.h"
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#include "ActiveLayerTracker.h"
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#include "nsContentUtils.h"
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#include "nsPrintfCString.h"
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#include "UnitTransforms.h"
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#include "LayersLogging.h"
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#include "FrameLayerBuilder.h"
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#include "mozilla/EventStateManager.h"
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#include "nsCaret.h"
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#include "nsDOMTokenList.h"
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#include "nsCSSProps.h"
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#include "nsSVGMaskFrame.h"
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#include "nsTableCellFrame.h"
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#include "nsTableColFrame.h"
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#include "nsSliderFrame.h"
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#include "ClientLayerManager.h"
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#include "mozilla/layers/StackingContextHelper.h"
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#include "mozilla/layers/WebRenderBridgeChild.h"
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#include "mozilla/layers/WebRenderLayerManager.h"
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#include "mozilla/layers/WebRenderMessages.h"
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#include "mozilla/layers/WebRenderScrollData.h"
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// GetCurrentTime is defined in winbase.h as zero argument macro forwarding to
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// GetTickCount().
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#ifdef GetCurrentTime
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#undef GetCurrentTime
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#endif
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using namespace mozilla;
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using namespace mozilla::layers;
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using namespace mozilla::dom;
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using namespace mozilla::layout;
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using namespace mozilla::gfx;
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typedef FrameMetrics::ViewID ViewID;
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typedef nsStyleTransformMatrix::TransformReferenceBox TransformReferenceBox;
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#ifdef DEBUG
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static bool
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SpammyLayoutWarningsEnabled()
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{
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static bool sValue = false;
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static bool sValueInitialized = false;
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if (!sValueInitialized) {
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Preferences::GetBool("layout.spammy_warnings.enabled", &sValue);
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sValueInitialized = true;
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}
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return sValue;
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}
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#endif
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#ifdef MOZ_DIAGNOSTIC_ASSERT_ENABLED
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void AssertUniqueItem(nsDisplayItem* aItem) {
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nsIFrame::DisplayItemArray* items = aItem->Frame()->GetProperty(nsIFrame::DisplayItems());
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if (!items) {
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return;
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}
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for (nsDisplayItem* i : *items) {
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if (i != aItem &&
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!i->HasDeletedFrame() &&
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i->Frame() == aItem->Frame() &&
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i->GetPerFrameKey() == aItem->GetPerFrameKey()) {
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if (i->mPreProcessedItem) {
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continue;
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}
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MOZ_DIAGNOSTIC_ASSERT(false, "Duplicate display item!");
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}
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}
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}
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#endif
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/* static */ bool
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ActiveScrolledRoot::IsAncestor(const ActiveScrolledRoot* aAncestor,
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const ActiveScrolledRoot* aDescendant)
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{
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if (!aAncestor) {
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// nullptr is the root
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return true;
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}
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if (Depth(aAncestor) > Depth(aDescendant)) {
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return false;
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}
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const ActiveScrolledRoot* asr = aDescendant;
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while (asr) {
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if (asr == aAncestor) {
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return true;
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}
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asr = asr->mParent;
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}
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return false;
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}
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/* static */ nsCString
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ActiveScrolledRoot::ToString(const ActiveScrolledRoot* aActiveScrolledRoot)
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{
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nsAutoCString str;
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for (auto* asr = aActiveScrolledRoot; asr; asr = asr->mParent) {
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str.AppendPrintf("<0x%p>", asr->mScrollableFrame);
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if (asr->mParent) {
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str.AppendLiteral(", ");
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}
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}
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return str;
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}
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static inline CSSAngle
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MakeCSSAngle(const nsCSSValue& aValue)
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{
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return CSSAngle(aValue.GetAngleValue(), aValue.GetUnit());
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}
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static void AddTransformFunctions(const nsCSSValueList* aList,
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mozilla::ComputedStyle* aStyle,
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nsPresContext* aPresContext,
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TransformReferenceBox& aRefBox,
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InfallibleTArray<TransformFunction>& aFunctions)
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{
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if (aList->mValue.GetUnit() == eCSSUnit_None) {
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return;
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}
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for (const nsCSSValueList* curr = aList; curr; curr = curr->mNext) {
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const nsCSSValue& currElem = curr->mValue;
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NS_ASSERTION(currElem.GetUnit() == eCSSUnit_Function,
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"Stream should consist solely of functions!");
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nsCSSValue::Array* array = currElem.GetArrayValue();
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switch (nsStyleTransformMatrix::TransformFunctionOf(array)) {
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case eCSSKeyword_rotatex:
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{
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CSSAngle theta = MakeCSSAngle(array->Item(1));
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aFunctions.AppendElement(RotationX(theta));
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break;
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}
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case eCSSKeyword_rotatey:
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{
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CSSAngle theta = MakeCSSAngle(array->Item(1));
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aFunctions.AppendElement(RotationY(theta));
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break;
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}
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case eCSSKeyword_rotatez:
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{
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CSSAngle theta = MakeCSSAngle(array->Item(1));
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aFunctions.AppendElement(RotationZ(theta));
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break;
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}
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case eCSSKeyword_rotate:
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{
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CSSAngle theta = MakeCSSAngle(array->Item(1));
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aFunctions.AppendElement(Rotation(theta));
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break;
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}
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case eCSSKeyword_rotate3d:
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{
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double x = array->Item(1).GetFloatValue();
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double y = array->Item(2).GetFloatValue();
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double z = array->Item(3).GetFloatValue();
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CSSAngle theta = MakeCSSAngle(array->Item(4));
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aFunctions.AppendElement(Rotation3D(x, y, z, theta));
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break;
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}
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case eCSSKeyword_scalex:
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{
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double x = array->Item(1).GetFloatValue();
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aFunctions.AppendElement(Scale(x, 1, 1));
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break;
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}
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case eCSSKeyword_scaley:
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{
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double y = array->Item(1).GetFloatValue();
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aFunctions.AppendElement(Scale(1, y, 1));
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break;
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}
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case eCSSKeyword_scalez:
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{
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double z = array->Item(1).GetFloatValue();
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aFunctions.AppendElement(Scale(1, 1, z));
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break;
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}
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case eCSSKeyword_scale:
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{
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double x = array->Item(1).GetFloatValue();
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// scale(x) is shorthand for scale(x, x);
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double y = array->Count() == 2 ? x : array->Item(2).GetFloatValue();
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aFunctions.AppendElement(Scale(x, y, 1));
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break;
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}
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case eCSSKeyword_scale3d:
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{
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double x = array->Item(1).GetFloatValue();
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double y = array->Item(2).GetFloatValue();
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double z = array->Item(3).GetFloatValue();
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aFunctions.AppendElement(Scale(x, y, z));
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break;
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}
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case eCSSKeyword_translatex:
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{
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double x = nsStyleTransformMatrix::ProcessTranslatePart(
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array->Item(1),
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&aRefBox, &TransformReferenceBox::Width);
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aFunctions.AppendElement(Translation(x, 0, 0));
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break;
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}
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case eCSSKeyword_translatey:
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{
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double y = nsStyleTransformMatrix::ProcessTranslatePart(
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array->Item(1),
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&aRefBox, &TransformReferenceBox::Height);
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aFunctions.AppendElement(Translation(0, y, 0));
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break;
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}
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case eCSSKeyword_translatez:
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{
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double z = nsStyleTransformMatrix::ProcessTranslatePart(
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array->Item(1),
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nullptr);
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aFunctions.AppendElement(Translation(0, 0, z));
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break;
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}
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case eCSSKeyword_translate:
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{
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double x = nsStyleTransformMatrix::ProcessTranslatePart(
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array->Item(1),
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&aRefBox, &TransformReferenceBox::Width);
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// translate(x) is shorthand for translate(x, 0)
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double y = 0;
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if (array->Count() == 3) {
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y = nsStyleTransformMatrix::ProcessTranslatePart(
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array->Item(2),
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&aRefBox, &TransformReferenceBox::Height);
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}
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aFunctions.AppendElement(Translation(x, y, 0));
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break;
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}
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case eCSSKeyword_translate3d:
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{
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double x = nsStyleTransformMatrix::ProcessTranslatePart(
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array->Item(1),
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&aRefBox, &TransformReferenceBox::Width);
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double y = nsStyleTransformMatrix::ProcessTranslatePart(
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array->Item(2),
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&aRefBox, &TransformReferenceBox::Height);
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double z = nsStyleTransformMatrix::ProcessTranslatePart(
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array->Item(3),
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nullptr);
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aFunctions.AppendElement(Translation(x, y, z));
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break;
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}
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case eCSSKeyword_skewx:
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{
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CSSAngle x = MakeCSSAngle(array->Item(1));
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aFunctions.AppendElement(SkewX(x));
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break;
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}
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case eCSSKeyword_skewy:
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{
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CSSAngle y = MakeCSSAngle(array->Item(1));
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aFunctions.AppendElement(SkewY(y));
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break;
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}
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case eCSSKeyword_skew:
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{
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CSSAngle x = MakeCSSAngle(array->Item(1));
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// skew(x) is shorthand for skew(x, 0)
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CSSAngle y(0.0f, eCSSUnit_Degree);
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if (array->Count() == 3) {
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y = MakeCSSAngle(array->Item(2));
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}
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aFunctions.AppendElement(Skew(x, y));
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break;
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}
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case eCSSKeyword_matrix:
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{
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gfx::Matrix4x4 matrix;
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matrix._11 = array->Item(1).GetFloatValue();
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matrix._12 = array->Item(2).GetFloatValue();
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matrix._13 = 0;
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matrix._14 = 0;
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matrix._21 = array->Item(3).GetFloatValue();
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matrix._22 = array->Item(4).GetFloatValue();
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matrix._23 = 0;
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matrix._24 = 0;
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matrix._31 = 0;
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matrix._32 = 0;
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matrix._33 = 1;
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matrix._34 = 0;
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matrix._41 = ProcessTranslatePart(array->Item(5),
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&aRefBox, &TransformReferenceBox::Width);
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matrix._42 = ProcessTranslatePart(array->Item(6),
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&aRefBox, &TransformReferenceBox::Height);
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matrix._43 = 0;
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matrix._44 = 1;
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aFunctions.AppendElement(TransformMatrix(matrix));
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break;
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}
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case eCSSKeyword_matrix3d:
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{
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gfx::Matrix4x4 matrix;
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matrix._11 = array->Item(1).GetFloatValue();
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matrix._12 = array->Item(2).GetFloatValue();
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matrix._13 = array->Item(3).GetFloatValue();
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matrix._14 = array->Item(4).GetFloatValue();
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matrix._21 = array->Item(5).GetFloatValue();
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matrix._22 = array->Item(6).GetFloatValue();
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matrix._23 = array->Item(7).GetFloatValue();
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matrix._24 = array->Item(8).GetFloatValue();
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matrix._31 = array->Item(9).GetFloatValue();
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matrix._32 = array->Item(10).GetFloatValue();
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matrix._33 = array->Item(11).GetFloatValue();
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matrix._34 = array->Item(12).GetFloatValue();
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matrix._41 = ProcessTranslatePart(array->Item(13),
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&aRefBox, &TransformReferenceBox::Width);
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matrix._42 = ProcessTranslatePart(array->Item(14),
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&aRefBox, &TransformReferenceBox::Height);
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matrix._43 = ProcessTranslatePart(array->Item(15),
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&aRefBox, nullptr);
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matrix._44 = array->Item(16).GetFloatValue();
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aFunctions.AppendElement(TransformMatrix(matrix));
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break;
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}
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case eCSSKeyword_interpolatematrix:
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{
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bool dummy;
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Matrix4x4 matrix;
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nsStyleTransformMatrix::ProcessInterpolateMatrix(matrix, array,
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aRefBox,
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&dummy);
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aFunctions.AppendElement(TransformMatrix(matrix));
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break;
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}
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case eCSSKeyword_accumulatematrix:
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{
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bool dummy;
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Matrix4x4 matrix;
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nsStyleTransformMatrix::ProcessAccumulateMatrix(matrix, array,
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aRefBox,
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&dummy);
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aFunctions.AppendElement(TransformMatrix(matrix));
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break;
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}
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case eCSSKeyword_perspective:
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{
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aFunctions.AppendElement(Perspective(array->Item(1).GetFloatValue()));
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break;
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}
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default:
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NS_ERROR("Function not handled yet!");
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}
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}
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}
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static void
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AddTransformFunctions(const nsCSSValueSharedList* aList,
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const nsIFrame* aFrame,
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TransformReferenceBox& aRefBox,
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layers::Animatable& aAnimatable)
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{
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MOZ_ASSERT(aList->mHead);
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AddTransformFunctions(aList->mHead,
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aFrame->Style(),
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aFrame->PresContext(),
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aRefBox,
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aAnimatable.get_ArrayOfTransformFunction());
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}
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|
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static TimingFunction
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ToTimingFunction(const Maybe<ComputedTimingFunction>& aCTF)
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{
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if (aCTF.isNothing()) {
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return TimingFunction(null_t());
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}
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if (aCTF->HasSpline()) {
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const nsSMILKeySpline* spline = aCTF->GetFunction();
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return TimingFunction(CubicBezierFunction(spline->X1(), spline->Y1(),
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spline->X2(), spline->Y2()));
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}
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if (aCTF->GetType() == nsTimingFunction::Type::Frames) {
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return TimingFunction(FramesFunction(aCTF->GetFrames()));
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}
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uint32_t type = aCTF->GetType() == nsTimingFunction::Type::StepStart ? 1 : 2;
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return TimingFunction(StepFunction(aCTF->GetSteps(), type));
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}
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|
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static void
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SetAnimatable(nsCSSPropertyID aProperty,
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const AnimationValue& aAnimationValue,
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nsIFrame* aFrame,
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TransformReferenceBox& aRefBox,
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layers::Animatable& aAnimatable)
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{
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MOZ_ASSERT(aFrame);
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if (aAnimationValue.IsNull()) {
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aAnimatable = null_t();
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return;
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}
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switch (aProperty) {
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case eCSSProperty_opacity:
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aAnimatable = aAnimationValue.GetOpacity();
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break;
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case eCSSProperty_transform: {
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aAnimatable = InfallibleTArray<TransformFunction>();
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if (aAnimationValue.mServo) {
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RefPtr<nsCSSValueSharedList> list;
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Servo_AnimationValue_GetTransform(aAnimationValue.mServo, &list);
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AddTransformFunctions(list, aFrame, aRefBox, aAnimatable);
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} else {
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MOZ_CRASH("old style system disabled");
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}
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break;
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}
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default:
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MOZ_ASSERT_UNREACHABLE("Unsupported property");
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}
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}
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|
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static void
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AddAnimationForProperty(nsIFrame* aFrame, const AnimationProperty& aProperty,
|
|
dom::Animation* aAnimation, AnimationInfo& aAnimationInfo,
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AnimationData& aData, bool aPending)
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|
{
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MOZ_ASSERT(aAnimation->GetEffect(),
|
|
"Should not be adding an animation without an effect");
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MOZ_ASSERT(!aAnimation->GetCurrentOrPendingStartTime().IsNull() ||
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!aAnimation->IsPlaying() ||
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(aAnimation->GetTimeline() &&
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aAnimation->GetTimeline()->TracksWallclockTime()),
|
|
"If the animation has an unresolved start time it should either"
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|
" be static (so we don't need a start time) or else have a"
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" timeline capable of converting TimeStamps (so we can calculate"
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" one later");
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|
|
layers::Animation* animation =
|
|
aPending ?
|
|
aAnimationInfo.AddAnimationForNextTransaction() :
|
|
aAnimationInfo.AddAnimation();
|
|
|
|
const TimingParams& timing = aAnimation->GetEffect()->SpecifiedTiming();
|
|
|
|
// If we are starting a new transition that replaces an existing transition
|
|
// running on the compositor, it is possible that the animation on the
|
|
// compositor will have advanced ahead of the main thread. If we use as
|
|
// the starting point of the new transition, the current value of the
|
|
// replaced transition as calculated on the main thread using the refresh
|
|
// driver time, the new transition will jump when it starts. Instead, we
|
|
// re-calculate the starting point of the new transition by applying the
|
|
// current TimeStamp to the parameters of the replaced transition.
|
|
//
|
|
// We need to do this here, rather than when we generate the new transition,
|
|
// since after generating the new transition other requestAnimationFrame
|
|
// callbacks may run that introduce further lag between the main thread and
|
|
// the compositor.
|
|
if (aAnimation->AsCSSTransition() &&
|
|
aAnimation->GetEffect() &&
|
|
aAnimation->GetEffect()->AsTransition()) {
|
|
// We update startValue from the replaced transition only if the effect is
|
|
// an ElementPropertyTransition.
|
|
aAnimation->GetEffect()->AsTransition()->
|
|
UpdateStartValueFromReplacedTransition();
|
|
}
|
|
|
|
animation->originTime() = !aAnimation->GetTimeline()
|
|
? TimeStamp()
|
|
: aAnimation->GetTimeline()->
|
|
ToTimeStamp(TimeDuration());
|
|
|
|
Nullable<TimeDuration> startTime = aAnimation->GetCurrentOrPendingStartTime();
|
|
if (startTime.IsNull()) {
|
|
animation->startTime() = null_t();
|
|
} else {
|
|
animation->startTime() = startTime.Value();
|
|
}
|
|
|
|
animation->holdTime() = aAnimation->GetCurrentTime().Value();
|
|
|
|
const ComputedTiming computedTiming =
|
|
aAnimation->GetEffect()->GetComputedTiming();
|
|
animation->delay() = timing.Delay();
|
|
animation->endDelay() = timing.EndDelay();
|
|
animation->duration() = computedTiming.mDuration;
|
|
animation->iterations() = computedTiming.mIterations;
|
|
animation->iterationStart() = computedTiming.mIterationStart;
|
|
animation->direction() = static_cast<uint8_t>(timing.Direction());
|
|
animation->fillMode() = static_cast<uint8_t>(computedTiming.mFill);
|
|
animation->property() = aProperty.mProperty;
|
|
animation->playbackRate() = aAnimation->CurrentOrPendingPlaybackRate();
|
|
animation->previousPlaybackRate() =
|
|
aAnimation->HasPendingPlaybackRate()
|
|
? aAnimation->PlaybackRate()
|
|
: std::numeric_limits<float>::quiet_NaN();
|
|
animation->data() = aData;
|
|
animation->easingFunction() = ToTimingFunction(timing.TimingFunction());
|
|
animation->iterationComposite() =
|
|
static_cast<uint8_t>(aAnimation->GetEffect()->
|
|
AsKeyframeEffect()->IterationComposite());
|
|
animation->isNotPlaying() = !aAnimation->IsPlaying();
|
|
|
|
TransformReferenceBox refBox(aFrame);
|
|
|
|
// If the animation is additive or accumulates, we need to pass its base value
|
|
// to the compositor.
|
|
|
|
AnimationValue baseStyle =
|
|
aAnimation->GetEffect()->AsKeyframeEffect()->BaseStyle(aProperty.mProperty);
|
|
if (!baseStyle.IsNull()) {
|
|
SetAnimatable(aProperty.mProperty,
|
|
baseStyle,
|
|
aFrame, refBox,
|
|
animation->baseStyle());
|
|
} else {
|
|
animation->baseStyle() = null_t();
|
|
}
|
|
|
|
for (uint32_t segIdx = 0; segIdx < aProperty.mSegments.Length(); segIdx++) {
|
|
const AnimationPropertySegment& segment = aProperty.mSegments[segIdx];
|
|
|
|
AnimationSegment* animSegment = animation->segments().AppendElement();
|
|
SetAnimatable(aProperty.mProperty,
|
|
segment.mFromValue,
|
|
aFrame, refBox,
|
|
animSegment->startState());
|
|
SetAnimatable(aProperty.mProperty,
|
|
segment.mToValue,
|
|
aFrame, refBox,
|
|
animSegment->endState());
|
|
|
|
animSegment->startPortion() = segment.mFromKey;
|
|
animSegment->endPortion() = segment.mToKey;
|
|
animSegment->startComposite() =
|
|
static_cast<uint8_t>(segment.mFromComposite);
|
|
animSegment->endComposite() =
|
|
static_cast<uint8_t>(segment.mToComposite);
|
|
animSegment->sampleFn() = ToTimingFunction(segment.mTimingFunction);
|
|
}
|
|
}
|
|
|
|
static void
|
|
AddAnimationsForProperty(nsIFrame* aFrame, nsDisplayListBuilder* aBuilder,
|
|
nsDisplayItem* aItem, nsCSSPropertyID aProperty,
|
|
AnimationInfo& aAnimationInfo, bool aPending,
|
|
bool aIsForWebRender)
|
|
{
|
|
if (aPending) {
|
|
aAnimationInfo.ClearAnimationsForNextTransaction();
|
|
} else {
|
|
aAnimationInfo.ClearAnimations();
|
|
}
|
|
|
|
nsIFrame* styleFrame = nsLayoutUtils::GetStyleFrame(aFrame);
|
|
if (!styleFrame) {
|
|
return;
|
|
}
|
|
|
|
// Update the animation generation on the layer. We need to do this before
|
|
// any early returns since even if we don't add any animations to the
|
|
// layer, we still need to mark it as up-to-date with regards to animations.
|
|
// Otherwise, in RestyleManager we'll notice the discrepancy between the
|
|
// animation generation numbers and update the layer indefinitely.
|
|
uint64_t animationGeneration =
|
|
// Note that GetAnimationGenerationForFrame() calles EffectSet::GetEffectSet
|
|
// that expects to work with the style frame instead of the primary frame.
|
|
RestyleManager::GetAnimationGenerationForFrame(styleFrame);
|
|
aAnimationInfo.SetAnimationGeneration(animationGeneration);
|
|
|
|
EffectCompositor::ClearIsRunningOnCompositor(styleFrame, aProperty);
|
|
nsTArray<RefPtr<dom::Animation>> compositorAnimations =
|
|
EffectCompositor::GetAnimationsForCompositor(styleFrame, aProperty);
|
|
if (compositorAnimations.IsEmpty()) {
|
|
return;
|
|
}
|
|
|
|
// If the frame is not prerendered, bail out.
|
|
// Do this check only during layer construction; during updating the
|
|
// caller is required to check it appropriately.
|
|
if (aItem && !aItem->CanUseAsyncAnimations(aBuilder)) {
|
|
// EffectCompositor needs to know that we refused to run this animation
|
|
// asynchronously so that it will not throttle the main thread
|
|
// animation.
|
|
aFrame->SetProperty(nsIFrame::RefusedAsyncAnimationProperty(), true);
|
|
|
|
// We need to schedule another refresh driver run so that EffectCompositor
|
|
// gets a chance to unthrottle the animation.
|
|
aFrame->SchedulePaint();
|
|
return;
|
|
}
|
|
|
|
AnimationData data;
|
|
if (aProperty == eCSSProperty_transform) {
|
|
// XXX Performance here isn't ideal for SVG. We'd prefer to avoid resolving
|
|
// the dimensions of refBox. That said, we only get here if there are CSS
|
|
// animations or transitions on this element, and that is likely to be a
|
|
// lot rarer than transforms on SVG (the frequency of which drives the need
|
|
// for TransformReferenceBox).
|
|
TransformReferenceBox refBox(aFrame);
|
|
nsRect bounds(0, 0, refBox.Width(), refBox.Height());
|
|
// all data passed directly to the compositor should be in dev pixels
|
|
int32_t devPixelsToAppUnits = aFrame->PresContext()->AppUnitsPerDevPixel();
|
|
float scale = devPixelsToAppUnits;
|
|
Point3D offsetToTransformOrigin =
|
|
nsDisplayTransform::GetDeltaToTransformOrigin(aFrame, scale, &bounds);
|
|
nsPoint origin;
|
|
float scaleX = 1.0f;
|
|
float scaleY = 1.0f;
|
|
bool hasPerspectiveParent = false;
|
|
if (aIsForWebRender) {
|
|
// leave origin empty, because we are sending it separately on the stacking
|
|
// context that we are pushing to WR, and WR will automatically include
|
|
// it when picking up the animated transform values
|
|
} else if (aItem) {
|
|
// This branch is for display items to leverage the cache of
|
|
// nsDisplayListBuilder.
|
|
origin = aItem->ToReferenceFrame();
|
|
} else {
|
|
// This branch is running for restyling.
|
|
// Animations are animated at the coordination of the reference
|
|
// frame outside, not the given frame itself. The given frame
|
|
// is also reference frame too, so the parent's reference frame
|
|
// are used.
|
|
nsIFrame* referenceFrame =
|
|
nsLayoutUtils::GetReferenceFrame(nsLayoutUtils::GetCrossDocParentFrame(aFrame));
|
|
origin = aFrame->GetOffsetToCrossDoc(referenceFrame);
|
|
}
|
|
|
|
data = TransformData(origin, offsetToTransformOrigin,
|
|
bounds, devPixelsToAppUnits,
|
|
scaleX, scaleY, hasPerspectiveParent);
|
|
} else if (aProperty == eCSSProperty_opacity) {
|
|
data = null_t();
|
|
}
|
|
|
|
MOZ_ASSERT(nsCSSProps::PropHasFlags(aProperty,
|
|
CSSPropFlags::CanAnimateOnCompositor),
|
|
"inconsistent property flags");
|
|
|
|
// Add from first to last (since last overrides)
|
|
for (size_t animIdx = 0; animIdx < compositorAnimations.Length(); animIdx++) {
|
|
dom::Animation* anim = compositorAnimations[animIdx];
|
|
if (!anim->IsRelevant()) {
|
|
continue;
|
|
}
|
|
|
|
dom::KeyframeEffect* keyframeEffect =
|
|
anim->GetEffect() ? anim->GetEffect()->AsKeyframeEffect() : nullptr;
|
|
MOZ_ASSERT(keyframeEffect,
|
|
"A playing animation should have a keyframe effect");
|
|
const AnimationProperty* property =
|
|
keyframeEffect->GetEffectiveAnimationOfProperty(aProperty);
|
|
if (!property) {
|
|
continue;
|
|
}
|
|
|
|
// Note that if the property is overridden by !important rules,
|
|
// GetEffectiveAnimationOfProperty returns null instead.
|
|
// This is what we want, since if we have animations overridden by
|
|
// !important rules, we don't want to send them to the compositor.
|
|
MOZ_ASSERT(anim->CascadeLevel() !=
|
|
EffectCompositor::CascadeLevel::Animations ||
|
|
!EffectSet::GetEffectSet(styleFrame)->PropertiesWithImportantRules()
|
|
.HasProperty(aProperty),
|
|
"GetEffectiveAnimationOfProperty already tested the property "
|
|
"is not overridden by !important rules");
|
|
|
|
// Don't add animations that are pending if their timeline does not
|
|
// track wallclock time. This is because any pending animations on layers
|
|
// will have their start time updated with the current wallclock time.
|
|
// If we can't convert that wallclock time back to an equivalent timeline
|
|
// time, we won't be able to update the content animation and it will end
|
|
// up being out of sync with the layer animation.
|
|
//
|
|
// Currently this only happens when the timeline is driven by a refresh
|
|
// driver under test control. In this case, the next time the refresh
|
|
// driver is advanced it will trigger any pending animations.
|
|
if (anim->Pending() &&
|
|
(anim->GetTimeline() && !anim->GetTimeline()->TracksWallclockTime())) {
|
|
continue;
|
|
}
|
|
|
|
AddAnimationForProperty(aFrame, *property, anim, aAnimationInfo, data, aPending);
|
|
keyframeEffect->SetIsRunningOnCompositor(aProperty, true);
|
|
}
|
|
}
|
|
|
|
static bool
|
|
GenerateAndPushTextMask(nsIFrame* aFrame, gfxContext* aContext,
|
|
const nsRect& aFillRect, nsDisplayListBuilder* aBuilder)
|
|
{
|
|
if (aBuilder->IsForGenerateGlyphMask() ||
|
|
aBuilder->IsForPaintingSelectionBG()) {
|
|
return false;
|
|
}
|
|
|
|
// The main function of enabling background-clip:text property value.
|
|
// When a nsDisplayBackgroundImage detects "text" bg-clip style, it will call
|
|
// this function to
|
|
// 1. Paint background color of the selection text if any.
|
|
// 2. Generate a mask by all descendant text frames
|
|
// 3. Push the generated mask into aContext.
|
|
//
|
|
// TBD: we actually generate display list of aFrame twice here. It's better
|
|
// to reuse the same display list and paint that one twice, one for selection
|
|
// background, one for generating text mask.
|
|
|
|
gfxContext* sourceCtx = aContext;
|
|
LayoutDeviceRect bounds =
|
|
LayoutDeviceRect::FromAppUnits(aFillRect,
|
|
aFrame->PresContext()->AppUnitsPerDevPixel());
|
|
|
|
{
|
|
// Paint text selection background into sourceCtx.
|
|
gfxContextMatrixAutoSaveRestore save(sourceCtx);
|
|
sourceCtx->SetMatrix(sourceCtx->CurrentMatrix().PreTranslate(bounds.TopLeft().ToUnknownPoint()));
|
|
|
|
nsLayoutUtils::PaintFrame(aContext, aFrame,
|
|
nsRect(nsPoint(0, 0), aFrame->GetSize()),
|
|
NS_RGB(255, 255, 255),
|
|
nsDisplayListBuilderMode::PAINTING_SELECTION_BACKGROUND);
|
|
}
|
|
|
|
// Evaluate required surface size.
|
|
IntRect drawRect =
|
|
RoundedOut(ToRect(sourceCtx->GetClipExtents(gfxContext::eDeviceSpace)));
|
|
|
|
Matrix currentMatrix = sourceCtx->CurrentMatrix();
|
|
Matrix maskTransform = currentMatrix *
|
|
Matrix::Translation(-drawRect.x, -drawRect.y);
|
|
maskTransform.Invert();
|
|
|
|
// Create a mask surface.
|
|
RefPtr<DrawTarget> sourceTarget = sourceCtx->GetDrawTarget();
|
|
RefPtr<DrawTarget> maskDT =
|
|
sourceTarget->CreateClippedDrawTarget(drawRect.Size(),
|
|
maskTransform * currentMatrix,
|
|
SurfaceFormat::A8);
|
|
if (!maskDT || !maskDT->IsValid()) {
|
|
return false;
|
|
}
|
|
RefPtr<gfxContext> maskCtx = gfxContext::CreatePreservingTransformOrNull(maskDT);
|
|
MOZ_ASSERT(maskCtx);
|
|
maskCtx->SetMatrix(Matrix::Translation(bounds.TopLeft().ToUnknownPoint()) *
|
|
currentMatrix *
|
|
Matrix::Translation(-drawRect.TopLeft()));
|
|
|
|
// Shade text shape into mask A8 surface.
|
|
nsLayoutUtils::PaintFrame(maskCtx, aFrame,
|
|
nsRect(nsPoint(0, 0), aFrame->GetSize()),
|
|
NS_RGB(255, 255, 255),
|
|
nsDisplayListBuilderMode::GENERATE_GLYPH);
|
|
|
|
// Push the generated mask into aContext, so that the caller can pop and
|
|
// blend with it.
|
|
RefPtr<SourceSurface> maskSurface = maskDT->Snapshot();
|
|
sourceCtx->PushGroupForBlendBack(gfxContentType::COLOR_ALPHA, 1.0, maskSurface, maskTransform);
|
|
|
|
return true;
|
|
}
|
|
|
|
/* static */ void
|
|
nsDisplayListBuilder::AddAnimationsAndTransitionsToLayer(Layer* aLayer,
|
|
nsDisplayListBuilder* aBuilder,
|
|
nsDisplayItem* aItem,
|
|
nsIFrame* aFrame,
|
|
nsCSSPropertyID aProperty)
|
|
{
|
|
MOZ_ASSERT(nsCSSProps::PropHasFlags(aProperty,
|
|
CSSPropFlags::CanAnimateOnCompositor),
|
|
"inconsistent property flags");
|
|
|
|
// This function can be called in two ways: from
|
|
// nsDisplay*::BuildLayer while constructing a layer (with all
|
|
// pointers non-null), or from RestyleManager's handling of
|
|
// UpdateOpacityLayer/UpdateTransformLayer hints.
|
|
MOZ_ASSERT(!aBuilder == !aItem,
|
|
"should only be called in two configurations, with both "
|
|
"aBuilder and aItem, or with neither");
|
|
MOZ_ASSERT(!aItem || aFrame == aItem->Frame(), "frame mismatch");
|
|
|
|
// Only send animations to a layer that is actually using
|
|
// off-main-thread compositing.
|
|
LayersBackend backend = aLayer->Manager()->GetBackendType();
|
|
if (!(backend == layers::LayersBackend::LAYERS_CLIENT ||
|
|
backend == layers::LayersBackend::LAYERS_WR)) {
|
|
return;
|
|
}
|
|
|
|
bool pending = !aBuilder;
|
|
AnimationInfo& animationInfo = aLayer->GetAnimationInfo();
|
|
AddAnimationsForProperty(aFrame, aBuilder, aItem, aProperty,
|
|
animationInfo, pending, false);
|
|
animationInfo.TransferMutatedFlagToLayer(aLayer);
|
|
}
|
|
|
|
nsDisplayItem*
|
|
nsDisplayListBuilder::MergeItems(nsTArray<nsDisplayItem*>& aMergedItems)
|
|
{
|
|
// For merging, we create a temporary item by cloning the last item of the
|
|
// mergeable items list. This ensures that the temporary item will have the
|
|
// correct frame and bounds.
|
|
nsDisplayItem* merged = nullptr;
|
|
|
|
for (nsDisplayItem* item : Reversed(aMergedItems)) {
|
|
MOZ_ASSERT(item);
|
|
|
|
if (!merged) {
|
|
// Create the temporary item.
|
|
merged = item->Clone(this);
|
|
MOZ_ASSERT(merged);
|
|
|
|
AddTemporaryItem(merged);
|
|
} else {
|
|
// Merge the item properties (frame/bounds/etc) with the previously
|
|
// created temporary item.
|
|
MOZ_ASSERT(merged->CanMerge(item));
|
|
merged->Merge(item);
|
|
}
|
|
|
|
// Create nsDisplayWrapList that points to the internal display list of the
|
|
// item we are merging. This nsDisplayWrapList is added to the display list
|
|
// of the temporary item.
|
|
merged->MergeDisplayListFromItem(this, item);
|
|
}
|
|
|
|
return merged;
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::AutoCurrentActiveScrolledRootSetter::SetCurrentActiveScrolledRoot(
|
|
const ActiveScrolledRoot* aActiveScrolledRoot)
|
|
{
|
|
MOZ_ASSERT(!mUsed);
|
|
|
|
// Set the builder's mCurrentActiveScrolledRoot.
|
|
mBuilder->mCurrentActiveScrolledRoot = aActiveScrolledRoot;
|
|
|
|
// We also need to adjust the builder's mCurrentContainerASR.
|
|
// mCurrentContainerASR needs to be an ASR that all the container's
|
|
// contents have finite bounds with respect to. If aActiveScrolledRoot
|
|
// is an ancestor ASR of mCurrentContainerASR, that means we need to
|
|
// set mCurrentContainerASR to aActiveScrolledRoot, because otherwise
|
|
// the items that will be created with aActiveScrolledRoot wouldn't
|
|
// have finite bounds with respect to mCurrentContainerASR. There's one
|
|
// exception, in the case where there's a content clip on the builder
|
|
// that is scrolled by a descendant ASR of aActiveScrolledRoot. This
|
|
// content clip will clip all items that are created while this
|
|
// AutoCurrentActiveScrolledRootSetter exists. This means that the items
|
|
// created during our lifetime will have finite bounds with respect to
|
|
// the content clip's ASR, even if the items' actual ASR is an ancestor
|
|
// of that. And it also means that mCurrentContainerASR only needs to be
|
|
// set to the content clip's ASR and not all the way to aActiveScrolledRoot.
|
|
// This case is tested by fixed-pos-scrolled-clip-opacity-layerize.html
|
|
// and fixed-pos-scrolled-clip-opacity-inside-layerize.html.
|
|
|
|
// finiteBoundsASR is the leafmost ASR that all items created during
|
|
// object's lifetime have finite bounds with respect to.
|
|
const ActiveScrolledRoot* finiteBoundsASR = ActiveScrolledRoot::PickDescendant(
|
|
mContentClipASR, aActiveScrolledRoot);
|
|
|
|
// mCurrentContainerASR is adjusted so that it's still an ancestor of
|
|
// finiteBoundsASR.
|
|
mBuilder->mCurrentContainerASR = ActiveScrolledRoot::PickAncestor(
|
|
mBuilder->mCurrentContainerASR, finiteBoundsASR);
|
|
|
|
// If we are entering out-of-flow content inside a CSS filter, mark
|
|
// scroll frames wrt. which the content is fixed as containing such content.
|
|
if (mBuilder->mFilterASR &&
|
|
ActiveScrolledRoot::IsAncestor(aActiveScrolledRoot, mBuilder->mFilterASR)) {
|
|
for (const ActiveScrolledRoot* asr = mBuilder->mFilterASR;
|
|
asr && asr != aActiveScrolledRoot;
|
|
asr = asr->mParent) {
|
|
asr->mScrollableFrame->SetHasOutOfFlowContentInsideFilter();
|
|
}
|
|
}
|
|
|
|
mUsed = true;
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::AutoCurrentActiveScrolledRootSetter::InsertScrollFrame(nsIScrollableFrame* aScrollableFrame)
|
|
{
|
|
MOZ_ASSERT(!mUsed);
|
|
size_t descendantsEndIndex = mBuilder->mActiveScrolledRoots.Length();
|
|
const ActiveScrolledRoot* parentASR = mBuilder->mCurrentActiveScrolledRoot;
|
|
const ActiveScrolledRoot* asr = mBuilder->AllocateActiveScrolledRoot(parentASR, aScrollableFrame);
|
|
mBuilder->mCurrentActiveScrolledRoot = asr;
|
|
|
|
// All child ASRs of parentASR that were created while this
|
|
// AutoCurrentActiveScrolledRootSetter object was on the stack belong to us
|
|
// now. Reparent them to asr.
|
|
for (size_t i = mDescendantsStartIndex; i < descendantsEndIndex; i++) {
|
|
ActiveScrolledRoot* descendantASR = mBuilder->mActiveScrolledRoots[i];
|
|
if (ActiveScrolledRoot::IsAncestor(parentASR, descendantASR)) {
|
|
descendantASR->IncrementDepth();
|
|
if (descendantASR->mParent == parentASR) {
|
|
descendantASR->mParent = asr;
|
|
}
|
|
}
|
|
}
|
|
|
|
mUsed = true;
|
|
}
|
|
|
|
nsDisplayListBuilder::nsDisplayListBuilder(nsIFrame* aReferenceFrame,
|
|
nsDisplayListBuilderMode aMode, bool aBuildCaret, bool aRetainingDisplayList)
|
|
: mReferenceFrame(aReferenceFrame),
|
|
mIgnoreScrollFrame(nullptr),
|
|
mCompositorHitTestInfo(nullptr),
|
|
mCurrentTableItem(nullptr),
|
|
mCurrentActiveScrolledRoot(nullptr),
|
|
mCurrentContainerASR(nullptr),
|
|
mCurrentFrame(aReferenceFrame),
|
|
mCurrentReferenceFrame(aReferenceFrame),
|
|
mRootAGR(AnimatedGeometryRoot::CreateAGRForFrame(aReferenceFrame, nullptr, true, aRetainingDisplayList)),
|
|
mCurrentAGR(mRootAGR),
|
|
mUsedAGRBudget(0),
|
|
mDirtyRect(-1,-1,-1,-1),
|
|
mGlassDisplayItem(nullptr),
|
|
mScrollInfoItemsForHoisting(nullptr),
|
|
mActiveScrolledRootForRootScrollframe(nullptr),
|
|
mMode(aMode),
|
|
mCurrentScrollParentId(FrameMetrics::NULL_SCROLL_ID),
|
|
mCurrentScrollbarTarget(FrameMetrics::NULL_SCROLL_ID),
|
|
mSVGEffectsBuildingDepth(0),
|
|
mFilterASR(nullptr),
|
|
mContainsBlendMode(false),
|
|
mIsBuildingScrollbar(false),
|
|
mCurrentScrollbarWillHaveLayer(false),
|
|
mBuildCaret(aBuildCaret),
|
|
mRetainingDisplayList(aRetainingDisplayList),
|
|
mPartialUpdate(false),
|
|
mIgnoreSuppression(false),
|
|
mIsAtRootOfPseudoStackingContext(false),
|
|
mIncludeAllOutOfFlows(false),
|
|
mDescendIntoSubdocuments(true),
|
|
mSelectedFramesOnly(false),
|
|
mAllowMergingAndFlattening(true),
|
|
mWillComputePluginGeometry(false),
|
|
mInTransform(false),
|
|
mInPageSequence(false),
|
|
mIsInChromePresContext(false),
|
|
mSyncDecodeImages(false),
|
|
mIsPaintingToWindow(false),
|
|
mIsCompositingCheap(false),
|
|
mContainsPluginItem(false),
|
|
mAncestorHasApzAwareEventHandler(false),
|
|
mHaveScrollableDisplayPort(false),
|
|
mWindowDraggingAllowed(false),
|
|
mIsBuildingForPopup(nsLayoutUtils::IsPopup(aReferenceFrame)),
|
|
mForceLayerForScrollParent(false),
|
|
mAsyncPanZoomEnabled(nsLayoutUtils::AsyncPanZoomEnabled(aReferenceFrame)),
|
|
mBuildingInvisibleItems(false),
|
|
mHitTestIsForVisibility(false),
|
|
mIsBuilding(false),
|
|
mInInvalidSubtree(false),
|
|
mDisablePartialUpdates(false),
|
|
mPartialBuildFailed(false)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayListBuilder);
|
|
|
|
mBuildCompositorHitTestInfo = mAsyncPanZoomEnabled && IsForPainting();
|
|
|
|
mLessEventRegionItems = gfxPrefs::LessEventRegionItems();
|
|
|
|
nsPresContext* pc = aReferenceFrame->PresContext();
|
|
nsIPresShell *shell = pc->PresShell();
|
|
if (pc->IsRenderingOnlySelection()) {
|
|
nsCOMPtr<nsISelectionController> selcon(do_QueryInterface(shell));
|
|
if (selcon) {
|
|
mBoundingSelection =
|
|
selcon->GetSelection(nsISelectionController::SELECTION_NORMAL);
|
|
}
|
|
}
|
|
|
|
static_assert(static_cast<uint32_t>(DisplayItemType::TYPE_MAX) < (1 << TYPE_BITS),
|
|
"Check TYPE_MAX should not overflow");
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::BeginFrame()
|
|
{
|
|
nsCSSRendering::BeginFrameTreesLocked();
|
|
mCurrentAGR = mRootAGR;
|
|
mFrameToAnimatedGeometryRootMap.Put(mReferenceFrame, mRootAGR);
|
|
|
|
mIsPaintingToWindow = false;
|
|
mIgnoreSuppression = false;
|
|
mInTransform = false;
|
|
mSyncDecodeImages = false;
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::EndFrame()
|
|
{
|
|
NS_ASSERTION(!mInInvalidSubtree, "Someone forgot to cleanup mInInvalidSubtree!");
|
|
mFrameToAnimatedGeometryRootMap.Clear();
|
|
mActiveScrolledRoots.Clear();
|
|
FreeClipChains();
|
|
FreeTemporaryItems();
|
|
nsCSSRendering::EndFrameTreesLocked();
|
|
|
|
MOZ_ASSERT(!mCompositorHitTestInfo);
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::MarkFrameForDisplay(nsIFrame* aFrame, nsIFrame* aStopAtFrame)
|
|
{
|
|
mFramesMarkedForDisplay.AppendElement(aFrame);
|
|
for (nsIFrame* f = aFrame; f;
|
|
f = nsLayoutUtils::GetParentOrPlaceholderForCrossDoc(f)) {
|
|
if (f->GetStateBits() & NS_FRAME_FORCE_DISPLAY_LIST_DESCEND_INTO)
|
|
return;
|
|
f->AddStateBits(NS_FRAME_FORCE_DISPLAY_LIST_DESCEND_INTO);
|
|
if (f == aStopAtFrame) {
|
|
// we've reached a frame that we know will be painted, so we can stop.
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::AddFrameMarkedForDisplayIfVisible(nsIFrame* aFrame)
|
|
{
|
|
mFramesMarkedForDisplayIfVisible.AppendElement(aFrame);
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::MarkFrameForDisplayIfVisible(nsIFrame* aFrame, nsIFrame* aStopAtFrame)
|
|
{
|
|
AddFrameMarkedForDisplayIfVisible(aFrame);
|
|
for (nsIFrame* f = aFrame; f;
|
|
f = nsLayoutUtils::GetParentOrPlaceholderForCrossDoc(f)) {
|
|
if (f->ForceDescendIntoIfVisible())
|
|
return;
|
|
f->SetForceDescendIntoIfVisible(true);
|
|
if (f == aStopAtFrame) {
|
|
// we've reached a frame that we know will be painted, so we can stop.
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool nsDisplayListBuilder::NeedToForceTransparentSurfaceForItem(nsDisplayItem* aItem)
|
|
{
|
|
return aItem == mGlassDisplayItem || aItem->ClearsBackground();
|
|
}
|
|
|
|
AnimatedGeometryRoot*
|
|
nsDisplayListBuilder::WrapAGRForFrame(nsIFrame* aAnimatedGeometryRoot,
|
|
bool aIsAsync,
|
|
AnimatedGeometryRoot* aParent /* = nullptr */)
|
|
{
|
|
DebugOnly<bool> dummy;
|
|
MOZ_ASSERT(IsAnimatedGeometryRoot(aAnimatedGeometryRoot, dummy) == AGR_YES);
|
|
|
|
RefPtr<AnimatedGeometryRoot> result;
|
|
if (!mFrameToAnimatedGeometryRootMap.Get(aAnimatedGeometryRoot, &result)) {
|
|
MOZ_ASSERT(nsLayoutUtils::IsAncestorFrameCrossDoc(RootReferenceFrame(), aAnimatedGeometryRoot));
|
|
RefPtr<AnimatedGeometryRoot> parent = aParent;
|
|
if (!parent) {
|
|
nsIFrame* parentFrame = nsLayoutUtils::GetCrossDocParentFrame(aAnimatedGeometryRoot);
|
|
if (parentFrame) {
|
|
bool isAsync;
|
|
nsIFrame* parentAGRFrame = FindAnimatedGeometryRootFrameFor(parentFrame, isAsync);
|
|
parent = WrapAGRForFrame(parentAGRFrame, isAsync);
|
|
}
|
|
}
|
|
result = AnimatedGeometryRoot::CreateAGRForFrame(aAnimatedGeometryRoot, parent, aIsAsync, IsRetainingDisplayList());
|
|
mFrameToAnimatedGeometryRootMap.Put(aAnimatedGeometryRoot, result);
|
|
}
|
|
MOZ_ASSERT(!aParent || result->mParentAGR == aParent);
|
|
return result;
|
|
}
|
|
|
|
AnimatedGeometryRoot*
|
|
nsDisplayListBuilder::AnimatedGeometryRootForASR(const ActiveScrolledRoot* aASR)
|
|
{
|
|
if (!aASR) {
|
|
return GetRootAnimatedGeometryRoot();
|
|
}
|
|
nsIFrame* scrolledFrame = aASR->mScrollableFrame->GetScrolledFrame();
|
|
return FindAnimatedGeometryRootFor(scrolledFrame);
|
|
}
|
|
|
|
AnimatedGeometryRoot*
|
|
nsDisplayListBuilder::FindAnimatedGeometryRootFor(nsIFrame* aFrame)
|
|
{
|
|
if (!IsPaintingToWindow()) {
|
|
return mRootAGR;
|
|
}
|
|
if (aFrame == mCurrentFrame) {
|
|
return mCurrentAGR;
|
|
}
|
|
RefPtr<AnimatedGeometryRoot> result;
|
|
if (mFrameToAnimatedGeometryRootMap.Get(aFrame, &result)) {
|
|
return result;
|
|
}
|
|
|
|
bool isAsync;
|
|
nsIFrame* agrFrame = FindAnimatedGeometryRootFrameFor(aFrame, isAsync);
|
|
result = WrapAGRForFrame(agrFrame, isAsync);
|
|
mFrameToAnimatedGeometryRootMap.Put(aFrame, result);
|
|
return result;
|
|
}
|
|
|
|
AnimatedGeometryRoot*
|
|
nsDisplayListBuilder::FindAnimatedGeometryRootFor(nsDisplayItem* aItem)
|
|
{
|
|
if (aItem->ShouldFixToViewport(this)) {
|
|
// Make its active scrolled root be the active scrolled root of
|
|
// the enclosing viewport, since it shouldn't be scrolled by scrolled
|
|
// frames in its document. InvalidateFixedBackgroundFramesFromList in
|
|
// nsGfxScrollFrame will not repaint this item when scrolling occurs.
|
|
nsIFrame* viewportFrame = nsLayoutUtils::GetClosestFrameOfType(
|
|
aItem->Frame(), LayoutFrameType::Viewport, RootReferenceFrame());
|
|
if (viewportFrame) {
|
|
return FindAnimatedGeometryRootFor(viewportFrame);
|
|
}
|
|
}
|
|
return FindAnimatedGeometryRootFor(aItem->Frame());
|
|
}
|
|
|
|
bool nsDisplayListBuilder::MarkOutOfFlowFrameForDisplay(nsIFrame* aDirtyFrame,
|
|
nsIFrame* aFrame)
|
|
{
|
|
MOZ_ASSERT(aFrame->GetParent() == aDirtyFrame);
|
|
nsRect dirty;
|
|
nsRect visible =
|
|
OutOfFlowDisplayData::ComputeVisibleRectForFrame(this, aFrame, GetVisibleRect(),
|
|
GetDirtyRect(), &dirty);
|
|
if (!(aFrame->GetStateBits() & NS_FRAME_FORCE_DISPLAY_LIST_DESCEND_INTO) &&
|
|
visible.IsEmpty()) {
|
|
return false;
|
|
}
|
|
|
|
// Only MarkFrameForDisplay if we're dirty. If this is a nested out-of-flow frame, then it will
|
|
// also mark any outer frames to ensure that building reaches the dirty feame.
|
|
if (!dirty.IsEmpty() ||
|
|
aFrame->ForceDescendIntoIfVisible()) {
|
|
MarkFrameForDisplay(aFrame, aDirtyFrame);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static void UnmarkFrameForDisplay(nsIFrame* aFrame, nsIFrame* aStopAtFrame) {
|
|
for (nsIFrame* f = aFrame; f;
|
|
f = nsLayoutUtils::GetParentOrPlaceholderForCrossDoc(f)) {
|
|
if (!(f->GetStateBits() & NS_FRAME_FORCE_DISPLAY_LIST_DESCEND_INTO))
|
|
return;
|
|
f->RemoveStateBits(NS_FRAME_FORCE_DISPLAY_LIST_DESCEND_INTO);
|
|
if (f == aStopAtFrame) {
|
|
// we've reached a frame that we know will be painted, so we can stop.
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void UnmarkFrameForDisplayIfVisible(nsIFrame* aFrame) {
|
|
for (nsIFrame* f = aFrame; f;
|
|
f = nsLayoutUtils::GetParentOrPlaceholderForCrossDoc(f)) {
|
|
if (!f->ForceDescendIntoIfVisible())
|
|
return;
|
|
f->SetForceDescendIntoIfVisible(false);
|
|
}
|
|
}
|
|
|
|
nsDisplayListBuilder::~nsDisplayListBuilder() {
|
|
NS_ASSERTION(mFramesMarkedForDisplay.Length() == 0,
|
|
"All frames should have been unmarked");
|
|
NS_ASSERTION(mFramesWithOOFData.Length() == 0,
|
|
"All OOF data should have been removed");
|
|
NS_ASSERTION(mPresShellStates.Length() == 0,
|
|
"All presshells should have been exited");
|
|
NS_ASSERTION(!mCurrentTableItem, "No table item should be active");
|
|
|
|
for (DisplayItemClipChain* c : mClipChainsToDestroy) {
|
|
c->DisplayItemClipChain::~DisplayItemClipChain();
|
|
}
|
|
|
|
MOZ_COUNT_DTOR(nsDisplayListBuilder);
|
|
}
|
|
|
|
uint32_t
|
|
nsDisplayListBuilder::GetBackgroundPaintFlags() {
|
|
uint32_t flags = 0;
|
|
if (mSyncDecodeImages) {
|
|
flags |= nsCSSRendering::PAINTBG_SYNC_DECODE_IMAGES;
|
|
}
|
|
if (mIsPaintingToWindow) {
|
|
flags |= nsCSSRendering::PAINTBG_TO_WINDOW;
|
|
}
|
|
return flags;
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::SubtractFromVisibleRegion(nsRegion* aVisibleRegion,
|
|
const nsRegion& aRegion)
|
|
{
|
|
if (aRegion.IsEmpty())
|
|
return;
|
|
|
|
nsRegion tmp;
|
|
tmp.Sub(*aVisibleRegion, aRegion);
|
|
// Don't let *aVisibleRegion get too complex, but don't let it fluff out
|
|
// to its bounds either, which can be very bad (see bug 516740).
|
|
// Do let aVisibleRegion get more complex if by doing so we reduce its
|
|
// area by at least half.
|
|
if (GetAccurateVisibleRegions() || tmp.GetNumRects() <= 15 ||
|
|
tmp.Area() <= aVisibleRegion->Area()/2) {
|
|
*aVisibleRegion = tmp;
|
|
}
|
|
}
|
|
|
|
nsCaret *
|
|
nsDisplayListBuilder::GetCaret() {
|
|
RefPtr<nsCaret> caret = CurrentPresShellState()->mPresShell->GetCaret();
|
|
return caret;
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::IncrementPresShellPaintCount(nsIPresShell* aPresShell)
|
|
{
|
|
if (mIsPaintingToWindow) {
|
|
mReferenceFrame->AddPaintedPresShell(aPresShell);
|
|
aPresShell->IncrementPaintCount();
|
|
}
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::EnterPresShell(nsIFrame* aReferenceFrame,
|
|
bool aPointerEventsNoneDoc)
|
|
{
|
|
PresShellState* state = mPresShellStates.AppendElement();
|
|
state->mPresShell = aReferenceFrame->PresShell();
|
|
state->mCaretFrame = nullptr;
|
|
state->mFirstFrameMarkedForDisplay = mFramesMarkedForDisplay.Length();
|
|
state->mFirstFrameWithOOFData = mFramesWithOOFData.Length();
|
|
|
|
nsIScrollableFrame* sf = state->mPresShell->GetRootScrollFrameAsScrollable();
|
|
if (sf && IsInSubdocument()) {
|
|
// We are forcing a rebuild of nsDisplayCanvasBackgroundColor to make sure
|
|
// that the canvas background color will be set correctly, and that only one
|
|
// unscrollable item will be created.
|
|
// This is done to avoid, for example, a case where only scrollbar frames
|
|
// are invalidated - we would skip creating nsDisplayCanvasBackgroundColor
|
|
// and possibly end up with an extra nsDisplaySolidColor item.
|
|
// We skip this for the root document, since we don't want to use
|
|
// MarkFrameForDisplayIfVisible before ComputeRebuildRegion. We'll
|
|
// do it manually there.
|
|
nsCanvasFrame* canvasFrame = do_QueryFrame(sf->GetScrolledFrame());
|
|
if (canvasFrame) {
|
|
MarkFrameForDisplayIfVisible(canvasFrame, aReferenceFrame);
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
state->mAutoLayoutPhase.emplace(aReferenceFrame->PresContext(), eLayoutPhase_DisplayListBuilding);
|
|
#endif
|
|
|
|
state->mPresShell->UpdateCanvasBackground();
|
|
|
|
bool buildCaret = mBuildCaret;
|
|
if (mIgnoreSuppression || !state->mPresShell->IsPaintingSuppressed()) {
|
|
state->mIsBackgroundOnly = false;
|
|
} else {
|
|
state->mIsBackgroundOnly = true;
|
|
buildCaret = false;
|
|
}
|
|
|
|
bool pointerEventsNone = aPointerEventsNoneDoc;
|
|
if (IsInSubdocument()) {
|
|
pointerEventsNone |= mPresShellStates[mPresShellStates.Length() - 2].mInsidePointerEventsNoneDoc;
|
|
}
|
|
state->mInsidePointerEventsNoneDoc = pointerEventsNone;
|
|
|
|
if (!buildCaret)
|
|
return;
|
|
|
|
RefPtr<nsCaret> caret = state->mPresShell->GetCaret();
|
|
state->mCaretFrame = caret->GetPaintGeometry(&state->mCaretRect);
|
|
if (state->mCaretFrame) {
|
|
MarkFrameForDisplay(state->mCaretFrame, aReferenceFrame);
|
|
}
|
|
|
|
nsPresContext* pc = aReferenceFrame->PresContext();
|
|
nsCOMPtr<nsIDocShell> docShell = pc->GetDocShell();
|
|
if (docShell) {
|
|
docShell->GetWindowDraggingAllowed(&mWindowDraggingAllowed);
|
|
}
|
|
mIsInChromePresContext = pc->IsChrome();
|
|
}
|
|
|
|
// A non-blank paint is a paint that does not just contain the canvas background.
|
|
static bool
|
|
DisplayListIsNonBlank(nsDisplayList* aList)
|
|
{
|
|
for (nsDisplayItem* i = aList->GetBottom(); i != nullptr; i = i->GetAbove()) {
|
|
switch (i->GetType()) {
|
|
case DisplayItemType::TYPE_COMPOSITOR_HITTEST_INFO:
|
|
case DisplayItemType::TYPE_CANVAS_BACKGROUND_COLOR:
|
|
case DisplayItemType::TYPE_CANVAS_BACKGROUND_IMAGE:
|
|
continue;
|
|
case DisplayItemType::TYPE_SOLID_COLOR:
|
|
case DisplayItemType::TYPE_BACKGROUND:
|
|
case DisplayItemType::TYPE_BACKGROUND_COLOR:
|
|
if (i->Frame()->IsCanvasFrame()) {
|
|
continue;
|
|
}
|
|
return true;
|
|
default:
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::LeavePresShell(nsIFrame* aReferenceFrame, nsDisplayList* aPaintedContents)
|
|
{
|
|
NS_ASSERTION(CurrentPresShellState()->mPresShell ==
|
|
aReferenceFrame->PresShell(),
|
|
"Presshell mismatch");
|
|
|
|
if (mIsPaintingToWindow) {
|
|
nsPresContext* pc = aReferenceFrame->PresContext();
|
|
if (!pc->HadNonBlankPaint()) {
|
|
if (!CurrentPresShellState()->mIsBackgroundOnly &&
|
|
DisplayListIsNonBlank(aPaintedContents)) {
|
|
pc->NotifyNonBlankPaint();
|
|
}
|
|
}
|
|
}
|
|
|
|
ResetMarkedFramesForDisplayList(aReferenceFrame);
|
|
mPresShellStates.SetLength(mPresShellStates.Length() - 1);
|
|
|
|
if (!mPresShellStates.IsEmpty()) {
|
|
nsPresContext* pc = CurrentPresContext();
|
|
nsCOMPtr<nsIDocShell> docShell = pc->GetDocShell();
|
|
if (docShell) {
|
|
docShell->GetWindowDraggingAllowed(&mWindowDraggingAllowed);
|
|
}
|
|
mIsInChromePresContext = pc->IsChrome();
|
|
} else {
|
|
mCurrentAGR = mRootAGR;
|
|
|
|
for (uint32_t i = 0;
|
|
i < mFramesMarkedForDisplayIfVisible.Length(); ++i) {
|
|
UnmarkFrameForDisplayIfVisible(mFramesMarkedForDisplayIfVisible[i]);
|
|
}
|
|
mFramesMarkedForDisplayIfVisible.SetLength(0);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::FreeClipChains()
|
|
{
|
|
// Iterate the clip chains from newest to oldest (forward
|
|
// iteration), so that we destroy descendants first which
|
|
// will drop the ref count on their ancestors.
|
|
auto it = mClipChainsToDestroy.begin();
|
|
|
|
while(it != mClipChainsToDestroy.end()) {
|
|
DisplayItemClipChain* clip = *it;
|
|
|
|
if (!clip->mRefCount) {
|
|
mClipDeduplicator.erase(clip);
|
|
it = mClipChainsToDestroy.erase(it);
|
|
clip->DisplayItemClipChain::~DisplayItemClipChain();
|
|
Destroy(DisplayItemType::TYPE_ZERO, clip);
|
|
} else {
|
|
++it;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::FreeTemporaryItems()
|
|
{
|
|
for (nsDisplayItem* i : mTemporaryItems) {
|
|
// Temporary display items are not added to the frames.
|
|
MOZ_ASSERT(i->Frame());
|
|
i->RemoveFrame(i->Frame());
|
|
i->Destroy(this);
|
|
}
|
|
|
|
mTemporaryItems.Clear();
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::ResetMarkedFramesForDisplayList(nsIFrame* aReferenceFrame)
|
|
{
|
|
// Unmark and pop off the frames marked for display in this pres shell.
|
|
uint32_t firstFrameForShell = CurrentPresShellState()->mFirstFrameMarkedForDisplay;
|
|
for (uint32_t i = firstFrameForShell;
|
|
i < mFramesMarkedForDisplay.Length(); ++i) {
|
|
UnmarkFrameForDisplay(mFramesMarkedForDisplay[i], aReferenceFrame);
|
|
}
|
|
mFramesMarkedForDisplay.SetLength(firstFrameForShell);
|
|
|
|
firstFrameForShell = CurrentPresShellState()->mFirstFrameWithOOFData;
|
|
for (uint32_t i = firstFrameForShell; i < mFramesWithOOFData.Length(); ++i) {
|
|
mFramesWithOOFData[i]->DeleteProperty(OutOfFlowDisplayDataProperty());
|
|
}
|
|
mFramesWithOOFData.SetLength(firstFrameForShell);
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::ClearFixedBackgroundDisplayData()
|
|
{
|
|
CurrentPresShellState()->mFixedBackgroundDisplayData = Nothing();
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::MarkFramesForDisplayList(nsIFrame* aDirtyFrame,
|
|
const nsFrameList& aFrames)
|
|
{
|
|
bool markedFrames = false;
|
|
for (nsIFrame* e : aFrames) {
|
|
// Skip the AccessibleCaret frame when building no caret.
|
|
if (!IsBuildingCaret()) {
|
|
nsIContent* content = e->GetContent();
|
|
if (content && content->IsInNativeAnonymousSubtree() && content->IsElement()) {
|
|
auto classList = content->AsElement()->ClassList();
|
|
if (classList->Contains(NS_LITERAL_STRING("moz-accessiblecaret"))) {
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
if (MarkOutOfFlowFrameForDisplay(aDirtyFrame, e)) {
|
|
markedFrames = true;
|
|
}
|
|
}
|
|
|
|
if (markedFrames) {
|
|
// mClipState.GetClipChainForContainingBlockDescendants can return pointers
|
|
// to objects on the stack, so we need to clone the chain.
|
|
const DisplayItemClipChain* clipChain =
|
|
CopyWholeChain(mClipState.GetClipChainForContainingBlockDescendants());
|
|
const DisplayItemClipChain* combinedClipChain = mClipState.GetCurrentCombinedClipChain(this);
|
|
const ActiveScrolledRoot* asr = mCurrentActiveScrolledRoot;
|
|
OutOfFlowDisplayData* data = new OutOfFlowDisplayData(clipChain, combinedClipChain, asr, GetVisibleRect(), GetDirtyRect());
|
|
aDirtyFrame->SetProperty(nsDisplayListBuilder::OutOfFlowDisplayDataProperty(), data);
|
|
mFramesWithOOFData.AppendElement(aDirtyFrame);
|
|
}
|
|
|
|
if (!aDirtyFrame->GetParent()) {
|
|
// This is the viewport frame of aDirtyFrame's presshell.
|
|
// Store the current display data so that it can be used for fixed
|
|
// background images.
|
|
NS_ASSERTION(CurrentPresShellState()->mPresShell ==
|
|
aDirtyFrame->PresShell(),
|
|
"Presshell mismatch");
|
|
MOZ_ASSERT(!CurrentPresShellState()->mFixedBackgroundDisplayData,
|
|
"already traversed this presshell's root frame?");
|
|
|
|
const DisplayItemClipChain* clipChain =
|
|
CopyWholeChain(mClipState.GetClipChainForContainingBlockDescendants());
|
|
const DisplayItemClipChain* combinedClipChain = mClipState.GetCurrentCombinedClipChain(this);
|
|
const ActiveScrolledRoot* asr = mCurrentActiveScrolledRoot;
|
|
CurrentPresShellState()->mFixedBackgroundDisplayData.emplace(
|
|
clipChain, combinedClipChain, asr, GetVisibleRect(), GetDirtyRect());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Mark all preserve-3d children with
|
|
* NS_FRAME_FORCE_DISPLAY_LIST_DESCEND_INTO to make sure
|
|
* nsFrame::BuildDisplayListForChild() would visit them. Also compute
|
|
* dirty rect for preserve-3d children.
|
|
*
|
|
* @param aDirtyFrame is the frame to mark children extending context.
|
|
*/
|
|
void
|
|
nsDisplayListBuilder::MarkPreserve3DFramesForDisplayList(nsIFrame* aDirtyFrame)
|
|
{
|
|
AutoTArray<nsIFrame::ChildList,4> childListArray;
|
|
aDirtyFrame->GetChildLists(&childListArray);
|
|
nsIFrame::ChildListArrayIterator lists(childListArray);
|
|
for (; !lists.IsDone(); lists.Next()) {
|
|
nsFrameList::Enumerator childFrames(lists.CurrentList());
|
|
for (; !childFrames.AtEnd(); childFrames.Next()) {
|
|
nsIFrame *child = childFrames.get();
|
|
if (child->Combines3DTransformWithAncestors()) {
|
|
MarkFrameForDisplay(child, aDirtyFrame);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
uint32_t gDisplayItemSizes[static_cast<uint32_t>(DisplayItemType::TYPE_MAX)] = { 0 };
|
|
|
|
void*
|
|
nsDisplayListBuilder::Allocate(size_t aSize, DisplayItemType aType)
|
|
{
|
|
size_t roundedUpSize = RoundUpPow2(aSize);
|
|
uint_fast8_t type = FloorLog2Size(roundedUpSize);
|
|
|
|
MOZ_RELEASE_ASSERT(gDisplayItemSizes[static_cast<uint32_t>(aType)] == type ||
|
|
gDisplayItemSizes[static_cast<uint32_t>(aType)] == 0);
|
|
gDisplayItemSizes[static_cast<uint32_t>(aType)] = type;
|
|
return mPool.AllocateByCustomID(type, roundedUpSize);
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::Destroy(DisplayItemType aType, void* aPtr)
|
|
{
|
|
mPool.FreeByCustomID(gDisplayItemSizes[static_cast<uint32_t>(aType)], aPtr);
|
|
}
|
|
|
|
ActiveScrolledRoot*
|
|
nsDisplayListBuilder::AllocateActiveScrolledRoot(const ActiveScrolledRoot* aParent,
|
|
nsIScrollableFrame* aScrollableFrame)
|
|
{
|
|
RefPtr<ActiveScrolledRoot> asr = ActiveScrolledRoot::CreateASRForFrame(aParent, aScrollableFrame, IsRetainingDisplayList());
|
|
mActiveScrolledRoots.AppendElement(asr);
|
|
return asr;
|
|
}
|
|
|
|
const DisplayItemClipChain*
|
|
nsDisplayListBuilder::AllocateDisplayItemClipChain(const DisplayItemClip& aClip,
|
|
const ActiveScrolledRoot* aASR,
|
|
const DisplayItemClipChain* aParent)
|
|
{
|
|
MOZ_ASSERT(!(aParent && aParent->mOnStack));
|
|
void* p = Allocate(sizeof(DisplayItemClipChain), DisplayItemType::TYPE_ZERO);
|
|
DisplayItemClipChain* c = new (KnownNotNull, p) DisplayItemClipChain(aClip, aASR, aParent);
|
|
#ifdef DEBUG
|
|
c->mOnStack = false;
|
|
#endif
|
|
auto result = mClipDeduplicator.insert(c);
|
|
if (!result.second) {
|
|
// An equivalent clip chain item was already created, so let's return that
|
|
// instead. Destroy the one we just created.
|
|
// Note that this can cause clip chains from different coordinate systems to
|
|
// collapse into the same clip chain object, because clip chains do not keep
|
|
// track of the reference frame that they were created in.
|
|
c->DisplayItemClipChain::~DisplayItemClipChain();
|
|
Destroy(DisplayItemType::TYPE_ZERO, c);
|
|
return *(result.first);
|
|
}
|
|
mClipChainsToDestroy.emplace_front(c);
|
|
return c;
|
|
}
|
|
|
|
struct ClipChainItem {
|
|
DisplayItemClip clip;
|
|
const ActiveScrolledRoot* asr;
|
|
};
|
|
|
|
const DisplayItemClipChain*
|
|
nsDisplayListBuilder::CreateClipChainIntersection(const DisplayItemClipChain* aAncestor,
|
|
const DisplayItemClipChain* aLeafClip1,
|
|
const DisplayItemClipChain* aLeafClip2)
|
|
{
|
|
AutoTArray<ClipChainItem,8> intersectedClips;
|
|
|
|
const DisplayItemClipChain* clip1 = aLeafClip1;
|
|
const DisplayItemClipChain* clip2 = aLeafClip2;
|
|
|
|
const ActiveScrolledRoot* asr =
|
|
ActiveScrolledRoot::PickDescendant(clip1 ? clip1->mASR : nullptr,
|
|
clip2 ? clip2->mASR : nullptr);
|
|
|
|
// Build up the intersection from the leaf to the root and put it into
|
|
// intersectedClips. The loop below will convert intersectedClips into an
|
|
// actual DisplayItemClipChain.
|
|
// (We need to do this in two passes because we need the parent clip in order
|
|
// to create the DisplayItemClipChain object, but the parent clip has not
|
|
// been created at that point.)
|
|
while (!aAncestor || asr != aAncestor->mASR) {
|
|
if (clip1 && clip1->mASR == asr) {
|
|
if (clip2 && clip2->mASR == asr) {
|
|
DisplayItemClip intersection = clip1->mClip;
|
|
intersection.IntersectWith(clip2->mClip);
|
|
intersectedClips.AppendElement(ClipChainItem{ intersection, asr });
|
|
clip2 = clip2->mParent;
|
|
} else {
|
|
intersectedClips.AppendElement(ClipChainItem{ clip1->mClip, asr });
|
|
}
|
|
clip1 = clip1->mParent;
|
|
} else if (clip2 && clip2->mASR == asr) {
|
|
intersectedClips.AppendElement(ClipChainItem{ clip2->mClip, asr });
|
|
clip2 = clip2->mParent;
|
|
}
|
|
if (!asr) {
|
|
MOZ_ASSERT(!aAncestor, "We should have exited this loop earlier");
|
|
break;
|
|
}
|
|
asr = asr->mParent;
|
|
}
|
|
|
|
// Convert intersectedClips into a DisplayItemClipChain.
|
|
const DisplayItemClipChain* parentSC = aAncestor;
|
|
for (auto& sc : Reversed(intersectedClips)) {
|
|
parentSC = AllocateDisplayItemClipChain(sc.clip, sc.asr, parentSC);
|
|
}
|
|
return parentSC;
|
|
}
|
|
|
|
const DisplayItemClipChain*
|
|
nsDisplayListBuilder::CopyWholeChain(const DisplayItemClipChain* aClipChain)
|
|
{
|
|
return CreateClipChainIntersection(nullptr, aClipChain, nullptr);
|
|
}
|
|
|
|
const nsIFrame*
|
|
nsDisplayListBuilder::FindReferenceFrameFor(const nsIFrame *aFrame,
|
|
nsPoint* aOffset) const
|
|
{
|
|
if (aFrame == mCurrentFrame) {
|
|
if (aOffset) {
|
|
*aOffset = mCurrentOffsetToReferenceFrame;
|
|
}
|
|
return mCurrentReferenceFrame;
|
|
}
|
|
for (const nsIFrame* f = aFrame; f; f = nsLayoutUtils::GetCrossDocParentFrame(f))
|
|
{
|
|
if (f == mReferenceFrame || f->IsTransformed()) {
|
|
if (aOffset) {
|
|
*aOffset = aFrame->GetOffsetToCrossDoc(f);
|
|
}
|
|
return f;
|
|
}
|
|
}
|
|
if (aOffset) {
|
|
*aOffset = aFrame->GetOffsetToCrossDoc(mReferenceFrame);
|
|
}
|
|
return mReferenceFrame;
|
|
}
|
|
|
|
// Sticky frames are active if their nearest scrollable frame is also active.
|
|
static bool
|
|
IsStickyFrameActive(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame, nsIFrame* aParent)
|
|
{
|
|
MOZ_ASSERT(aFrame->StyleDisplay()->mPosition == NS_STYLE_POSITION_STICKY);
|
|
|
|
// Find the nearest scrollframe.
|
|
nsIFrame* cursor = aFrame;
|
|
nsIFrame* parent = aParent;
|
|
if (!parent) {
|
|
parent = nsLayoutUtils::GetCrossDocParentFrame(aFrame);
|
|
}
|
|
while (!parent->IsScrollFrame()) {
|
|
cursor = parent;
|
|
if ((parent = nsLayoutUtils::GetCrossDocParentFrame(cursor)) == nullptr) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
nsIScrollableFrame* sf = do_QueryFrame(parent);
|
|
return sf->IsScrollingActive(aBuilder) && sf->GetScrolledFrame() == cursor;
|
|
}
|
|
|
|
nsDisplayListBuilder::AGRState
|
|
nsDisplayListBuilder::IsAnimatedGeometryRoot(nsIFrame* aFrame,
|
|
bool& aIsAsync,
|
|
nsIFrame** aParent)
|
|
{
|
|
aIsAsync = false;
|
|
if (aFrame == mReferenceFrame) {
|
|
aIsAsync = true;
|
|
return AGR_YES;
|
|
}
|
|
if (!IsPaintingToWindow()) {
|
|
if (aParent) {
|
|
*aParent = nsLayoutUtils::GetCrossDocParentFrame(aFrame);
|
|
}
|
|
return AGR_NO;
|
|
}
|
|
|
|
nsIFrame* parent = nsLayoutUtils::GetCrossDocParentFrame(aFrame);
|
|
if (!parent) {
|
|
aIsAsync = true;
|
|
return AGR_YES;
|
|
}
|
|
|
|
AGRState result = AGR_NO; // Possible to transition from not being an AGR
|
|
// to being an AGR without a style change.
|
|
|
|
LayoutFrameType parentType = parent->Type();
|
|
|
|
if (aFrame->IsTransformed()) {
|
|
aIsAsync = EffectCompositor::HasAnimationsForCompositor(aFrame, eCSSProperty_transform);
|
|
result = AGR_YES;
|
|
}
|
|
|
|
if (parentType == LayoutFrameType::Scroll ||
|
|
parentType == LayoutFrameType::ListControl) {
|
|
nsIScrollableFrame* sf = do_QueryFrame(parent);
|
|
if (sf->GetScrolledFrame() == aFrame) {
|
|
if (sf->IsScrollingActive(this)) {
|
|
aIsAsync = aIsAsync || sf->IsMaybeAsynchronouslyScrolled();
|
|
result = AGR_YES;
|
|
} else {
|
|
result = AGR_MAYBE;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Finished checking all conditions that might set aIsAsync, so we can
|
|
// early return now.
|
|
if (result == AGR_YES) {
|
|
return result;
|
|
}
|
|
|
|
if (nsLayoutUtils::IsPopup(aFrame))
|
|
return AGR_YES;
|
|
if (ActiveLayerTracker::IsOffsetStyleAnimated(aFrame)) {
|
|
const bool inBudget = AddToAGRBudget(aFrame);
|
|
if (inBudget) {
|
|
return AGR_YES;
|
|
}
|
|
}
|
|
if (!aFrame->GetParent() &&
|
|
nsLayoutUtils::ViewportHasDisplayPort(aFrame->PresContext())) {
|
|
// Viewport frames in a display port need to be animated geometry roots
|
|
// for background-attachment:fixed elements.
|
|
return AGR_YES;
|
|
}
|
|
|
|
|
|
// Treat the slider thumb as being as an active scrolled root when it wants
|
|
// its own layer so that it can move without repainting.
|
|
if (parentType == LayoutFrameType::Slider) {
|
|
nsIScrollableFrame* sf = static_cast<nsSliderFrame*>(parent)->GetScrollFrame();
|
|
// The word "Maybe" in IsMaybeScrollingActive might be confusing but we do
|
|
// indeed need to always consider scroll thumbs as AGRs if
|
|
// IsMaybeScrollingActive is true because that is the same condition we use
|
|
// in ScrollFrameHelper::AppendScrollPartsTo to layerize scroll thumbs.
|
|
if (sf && sf->IsMaybeScrollingActive()) {
|
|
return AGR_YES;
|
|
}
|
|
result = AGR_MAYBE;
|
|
}
|
|
|
|
if (aFrame->StyleDisplay()->mPosition == NS_STYLE_POSITION_STICKY) {
|
|
if (IsStickyFrameActive(this, aFrame, parent)) {
|
|
return AGR_YES;
|
|
}
|
|
result = AGR_MAYBE;
|
|
}
|
|
|
|
|
|
// Fixed-pos frames are parented by the viewport frame, which has no parent.
|
|
if (nsLayoutUtils::IsFixedPosFrameInDisplayPort(aFrame)) {
|
|
return AGR_YES;
|
|
}
|
|
|
|
if ((aFrame->GetStateBits() & NS_FRAME_MAY_BE_TRANSFORMED) &&
|
|
aFrame->IsFrameOfType(nsIFrame::eSVG)) {
|
|
// For SVG containers, they always have
|
|
// NS_FRAME_MAY_BE_TRANSFORMED bit. However, they would be
|
|
// affected by the fragement identifiers in the svgView form at
|
|
// runtime without a new ComputedStyle.
|
|
// For example, layout/reftests/svg/fragmentIdentifier-01.xhtml
|
|
//
|
|
// see https://www.w3.org/TR/SVG/linking.html#SVGFragmentIdentifiers
|
|
result = AGR_MAYBE;
|
|
}
|
|
|
|
if (aParent) {
|
|
*aParent = parent;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
nsIFrame*
|
|
nsDisplayListBuilder::FindAnimatedGeometryRootFrameFor(nsIFrame* aFrame, bool& aIsAsync)
|
|
{
|
|
MOZ_ASSERT(nsLayoutUtils::IsAncestorFrameCrossDoc(RootReferenceFrame(), aFrame));
|
|
nsIFrame* cursor = aFrame;
|
|
while (cursor != RootReferenceFrame()) {
|
|
nsIFrame* next;
|
|
if (IsAnimatedGeometryRoot(cursor, aIsAsync, &next) == AGR_YES)
|
|
return cursor;
|
|
cursor = next;
|
|
}
|
|
// Root frame is always an async agr.
|
|
aIsAsync = true;
|
|
return cursor;
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::RecomputeCurrentAnimatedGeometryRoot()
|
|
{
|
|
bool isAsync;
|
|
if (*mCurrentAGR != mCurrentFrame &&
|
|
IsAnimatedGeometryRoot(const_cast<nsIFrame*>(mCurrentFrame), isAsync) == AGR_YES) {
|
|
AnimatedGeometryRoot* oldAGR = mCurrentAGR;
|
|
mCurrentAGR = WrapAGRForFrame(const_cast<nsIFrame*>(mCurrentFrame), isAsync, mCurrentAGR);
|
|
|
|
// Iterate the AGR cache and look for any objects that reference the old AGR and check
|
|
// to see if they need to be updated. AGRs can be in the cache multiple times, so we may
|
|
// end up doing the work multiple times for AGRs that don't change.
|
|
for (auto iter = mFrameToAnimatedGeometryRootMap.Iter(); !iter.Done(); iter.Next()) {
|
|
RefPtr<AnimatedGeometryRoot> cached = iter.UserData();
|
|
if (cached->mParentAGR == oldAGR && cached != mCurrentAGR) {
|
|
// It's possible that this cached AGR struct that has the old AGR as a parent
|
|
// should instead have mCurrentFrame has a parent.
|
|
nsIFrame* parent = FindAnimatedGeometryRootFrameFor(*cached, isAsync);
|
|
MOZ_ASSERT(parent == mCurrentFrame || parent == *oldAGR);
|
|
if (parent == mCurrentFrame) {
|
|
cached->mParentAGR = mCurrentAGR;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static nsRect
|
|
ApplyAllClipNonRoundedIntersection(const DisplayItemClipChain* aClipChain, const nsRect& aRect)
|
|
{
|
|
nsRect result = aRect;
|
|
while (aClipChain) {
|
|
result = aClipChain->mClip.ApplyNonRoundedIntersection(result);
|
|
aClipChain = aClipChain->mParent;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::AdjustWindowDraggingRegion(nsIFrame* aFrame)
|
|
{
|
|
if (!mWindowDraggingAllowed || !IsForPainting()) {
|
|
return;
|
|
}
|
|
|
|
const nsStyleUIReset* styleUI = aFrame->StyleUIReset();
|
|
if (styleUI->mWindowDragging == StyleWindowDragging::Default) {
|
|
// This frame has the default value and doesn't influence the window
|
|
// dragging region.
|
|
return;
|
|
}
|
|
|
|
LayoutDeviceToLayoutDeviceMatrix4x4 referenceFrameToRootReferenceFrame;
|
|
|
|
// The const_cast is for nsLayoutUtils::GetTransformToAncestor.
|
|
nsIFrame* referenceFrame = const_cast<nsIFrame*>(FindReferenceFrameFor(aFrame));
|
|
|
|
if (IsInTransform()) {
|
|
// Only support 2d rectilinear transforms. Transform support is needed for
|
|
// the horizontal flip transform that's applied to the urlbar textbox in
|
|
// RTL mode - it should be able to exclude itself from the draggable region.
|
|
referenceFrameToRootReferenceFrame =
|
|
ViewAs<LayoutDeviceToLayoutDeviceMatrix4x4>(
|
|
nsLayoutUtils::GetTransformToAncestor(referenceFrame, mReferenceFrame).GetMatrix());
|
|
Matrix referenceFrameToRootReferenceFrame2d;
|
|
if (!referenceFrameToRootReferenceFrame.Is2D(&referenceFrameToRootReferenceFrame2d) ||
|
|
!referenceFrameToRootReferenceFrame2d.IsRectilinear()) {
|
|
return;
|
|
}
|
|
} else {
|
|
MOZ_ASSERT(referenceFrame == mReferenceFrame,
|
|
"referenceFrameToRootReferenceFrame needs to be adjusted");
|
|
}
|
|
|
|
// We do some basic visibility checking on the frame's border box here.
|
|
// We intersect it both with the current dirty rect and with the current
|
|
// clip. Either one is just a conservative approximation on its own, but
|
|
// their intersection luckily works well enough for our purposes, so that
|
|
// we don't have to do full-blown visibility computations.
|
|
// The most important case we need to handle is the scrolled-off tab:
|
|
// If the tab bar overflows, tab parts that are clipped by the scrollbox
|
|
// should not be allowed to interfere with the window dragging region. Using
|
|
// just the current DisplayItemClip is not enough to cover this case
|
|
// completely because clips are reset while building stacking context
|
|
// contents, so for example we'd fail to clip frames that have a clip path
|
|
// applied to them. But the current dirty rect doesn't get reset in that
|
|
// case, so we use it to make this case work.
|
|
nsRect borderBox = aFrame->GetRectRelativeToSelf().Intersect(mVisibleRect);
|
|
borderBox += ToReferenceFrame(aFrame);
|
|
const DisplayItemClipChain* clip = ClipState().GetCurrentCombinedClipChain(this);
|
|
borderBox = ApplyAllClipNonRoundedIntersection(clip, borderBox);
|
|
if (borderBox.IsEmpty()) {
|
|
return;
|
|
}
|
|
|
|
LayoutDeviceRect devPixelBorderBox =
|
|
LayoutDevicePixel::FromAppUnits(borderBox, aFrame->PresContext()->AppUnitsPerDevPixel());
|
|
|
|
LayoutDeviceRect transformedDevPixelBorderBox =
|
|
TransformBy(referenceFrameToRootReferenceFrame, devPixelBorderBox);
|
|
transformedDevPixelBorderBox.Round();
|
|
LayoutDeviceIntRect transformedDevPixelBorderBoxInt;
|
|
|
|
if (!transformedDevPixelBorderBox.ToIntRect(&transformedDevPixelBorderBoxInt)) {
|
|
return;
|
|
}
|
|
|
|
LayoutDeviceIntRegion& region =
|
|
styleUI->mWindowDragging == StyleWindowDragging::Drag
|
|
? mWindowDraggingRegion : mWindowNoDraggingRegion;
|
|
|
|
if (!IsRetainingDisplayList()) {
|
|
region.OrWith(transformedDevPixelBorderBoxInt);
|
|
return;
|
|
}
|
|
|
|
mozilla::gfx::IntRect rect(transformedDevPixelBorderBoxInt.ToUnknownRect());
|
|
if (styleUI->mWindowDragging == StyleWindowDragging::Drag) {
|
|
mRetainedWindowDraggingRegion.Add(aFrame, rect);
|
|
} else {
|
|
mRetainedWindowNoDraggingRegion.Add(aFrame, rect);
|
|
}
|
|
}
|
|
|
|
LayoutDeviceIntRegion
|
|
nsDisplayListBuilder::GetWindowDraggingRegion() const
|
|
{
|
|
LayoutDeviceIntRegion result;
|
|
if (!IsRetainingDisplayList()) {
|
|
result.Sub(mWindowDraggingRegion, mWindowNoDraggingRegion);
|
|
return result;
|
|
}
|
|
|
|
LayoutDeviceIntRegion dragRegion =
|
|
mRetainedWindowDraggingRegion.ToLayoutDeviceIntRegion();
|
|
|
|
LayoutDeviceIntRegion noDragRegion =
|
|
mRetainedWindowNoDraggingRegion.ToLayoutDeviceIntRegion();
|
|
|
|
result.Sub(dragRegion, noDragRegion);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Removes modified frames and rects from |aRegion|.
|
|
*/
|
|
static void
|
|
RemoveModifiedFramesAndRects(nsDisplayListBuilder::WeakFrameRegion& aRegion)
|
|
{
|
|
std::vector<WeakFrame>& frames = aRegion.mFrames;
|
|
nsTArray<pixman_box32_t>& rects = aRegion.mRects;
|
|
|
|
MOZ_ASSERT(frames.size() == rects.Length());
|
|
|
|
uint32_t i = 0;
|
|
uint32_t length = frames.size();
|
|
|
|
while(i < length) {
|
|
WeakFrame& frame = frames[i];
|
|
|
|
if (!frame.IsAlive() || frame->IsFrameModified()) {
|
|
// To avoid O(n) shifts in the array, move the last element of the array
|
|
// to the current position and decrease the array length. Moving WeakFrame
|
|
// inside of the array causes a new WeakFrame to be created and registered
|
|
// with PresShell. We could avoid this by, for example, using a wrapper
|
|
// class for WeakFrame, or by storing raw WeakFrame pointers.
|
|
frames[i] = frames[length - 1];
|
|
rects[i] = rects[length - 1];
|
|
length--;
|
|
} else {
|
|
i++;
|
|
}
|
|
}
|
|
|
|
frames.resize(length);
|
|
rects.TruncateLength(length);
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::RemoveModifiedWindowRegions()
|
|
{
|
|
RemoveModifiedFramesAndRects(mRetainedWindowDraggingRegion);
|
|
RemoveModifiedFramesAndRects(mRetainedWindowNoDraggingRegion);
|
|
RemoveModifiedFramesAndRects(mWindowExcludeGlassRegion);
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::ClearRetainedWindowRegions()
|
|
{
|
|
mRetainedWindowDraggingRegion.Clear();
|
|
mRetainedWindowNoDraggingRegion.Clear();
|
|
mWindowExcludeGlassRegion.Clear();
|
|
}
|
|
|
|
const uint32_t gWillChangeAreaMultiplier = 3;
|
|
static uint32_t GetLayerizationCost(const nsSize& aSize) {
|
|
// There's significant overhead for each layer created from Gecko
|
|
// (IPC+Shared Objects) and from the backend (like an OpenGL texture).
|
|
// Therefore we set a minimum cost threshold of a 64x64 area.
|
|
int minBudgetCost = 64 * 64;
|
|
|
|
uint32_t budgetCost =
|
|
std::max(minBudgetCost,
|
|
nsPresContext::AppUnitsToIntCSSPixels(aSize.width) *
|
|
nsPresContext::AppUnitsToIntCSSPixels(aSize.height));
|
|
|
|
return budgetCost;
|
|
}
|
|
|
|
bool
|
|
nsDisplayListBuilder::AddToWillChangeBudget(nsIFrame* aFrame,
|
|
const nsSize& aSize) {
|
|
if (mWillChangeBudgetSet.Get(aFrame, nullptr)) {
|
|
return true; // Already accounted
|
|
}
|
|
|
|
nsPresContext* key = aFrame->PresContext();
|
|
DocumentWillChangeBudget budget;
|
|
auto willChangeBudgetEntry = mWillChangeBudget.LookupForAdd(key);
|
|
if (willChangeBudgetEntry) {
|
|
// We have an existing entry.
|
|
budget = willChangeBudgetEntry.Data();
|
|
} else {
|
|
budget = DocumentWillChangeBudget();
|
|
willChangeBudgetEntry.OrInsert([&budget] () { return budget; });
|
|
}
|
|
|
|
nsRect area = aFrame->PresContext()->GetVisibleArea();
|
|
uint32_t budgetLimit = nsPresContext::AppUnitsToIntCSSPixels(area.width) *
|
|
nsPresContext::AppUnitsToIntCSSPixels(area.height);
|
|
|
|
uint32_t cost = GetLayerizationCost(aSize);
|
|
bool onBudget = (budget.mBudget + cost) /
|
|
gWillChangeAreaMultiplier < budgetLimit;
|
|
|
|
if (onBudget) {
|
|
budget.mBudget += cost;
|
|
willChangeBudgetEntry.Data() = budget;
|
|
mWillChangeBudgetSet.Put(aFrame, cost);
|
|
aFrame->SetMayHaveWillChangeBudget(true);
|
|
}
|
|
|
|
return onBudget;
|
|
}
|
|
|
|
bool
|
|
nsDisplayListBuilder::IsInWillChangeBudget(nsIFrame* aFrame,
|
|
const nsSize& aSize) {
|
|
bool onBudget = AddToWillChangeBudget(aFrame, aSize);
|
|
|
|
if (!onBudget) {
|
|
nsString usageStr;
|
|
usageStr.AppendInt(GetLayerizationCost(aSize));
|
|
|
|
nsString multiplierStr;
|
|
multiplierStr.AppendInt(gWillChangeAreaMultiplier);
|
|
|
|
nsString limitStr;
|
|
nsRect area = aFrame->PresContext()->GetVisibleArea();
|
|
uint32_t budgetLimit = nsPresContext::AppUnitsToIntCSSPixels(area.width) *
|
|
nsPresContext::AppUnitsToIntCSSPixels(area.height);
|
|
limitStr.AppendInt(budgetLimit);
|
|
|
|
const char16_t* params[] = { multiplierStr.get(), limitStr.get() };
|
|
aFrame->PresContext()->Document()->WarnOnceAbout(
|
|
nsIDocument::eIgnoringWillChangeOverBudget, false,
|
|
params, ArrayLength(params));
|
|
}
|
|
return onBudget;
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::ClearWillChangeBudget(nsIFrame* aFrame)
|
|
{
|
|
if (!aFrame->MayHaveWillChangeBudget()) {
|
|
return;
|
|
}
|
|
aFrame->SetMayHaveWillChangeBudget(false);
|
|
|
|
uint32_t cost = 0;
|
|
if (!mWillChangeBudgetSet.Get(aFrame, &cost)) {
|
|
return;
|
|
}
|
|
mWillChangeBudgetSet.Remove(aFrame);
|
|
|
|
DocumentWillChangeBudget& budget =
|
|
mWillChangeBudget.GetOrInsert(aFrame->PresContext());
|
|
MOZ_ASSERT(budget.mBudget >= cost);
|
|
budget.mBudget -= cost;
|
|
}
|
|
|
|
#ifdef MOZ_GFX_OPTIMIZE_MOBILE
|
|
const float gAGRBudgetAreaMultiplier = 0.3;
|
|
#else
|
|
const float gAGRBudgetAreaMultiplier = 3.0;
|
|
#endif
|
|
|
|
bool
|
|
nsDisplayListBuilder::AddToAGRBudget(nsIFrame* aFrame)
|
|
{
|
|
if (mAGRBudgetSet.Contains(aFrame)) {
|
|
return true;
|
|
}
|
|
|
|
const nsPresContext* presContext = aFrame->PresContext()->GetRootPresContext();
|
|
if (!presContext) {
|
|
return false;
|
|
}
|
|
|
|
const nsRect area = presContext->GetVisibleArea();
|
|
const uint32_t budgetLimit = gAGRBudgetAreaMultiplier *
|
|
nsPresContext::AppUnitsToIntCSSPixels(area.width) *
|
|
nsPresContext::AppUnitsToIntCSSPixels(area.height);
|
|
|
|
const uint32_t cost = GetLayerizationCost(aFrame->GetSize());
|
|
const bool onBudget = mUsedAGRBudget + cost < budgetLimit;
|
|
|
|
if (onBudget) {
|
|
mUsedAGRBudget += cost;
|
|
mAGRBudgetSet.PutEntry(aFrame);
|
|
}
|
|
|
|
return onBudget;
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::EnterSVGEffectsContents(nsDisplayList* aHoistedItemsStorage)
|
|
{
|
|
MOZ_ASSERT(mSVGEffectsBuildingDepth >= 0);
|
|
MOZ_ASSERT(aHoistedItemsStorage);
|
|
if (mSVGEffectsBuildingDepth == 0) {
|
|
MOZ_ASSERT(!mScrollInfoItemsForHoisting);
|
|
mScrollInfoItemsForHoisting = aHoistedItemsStorage;
|
|
}
|
|
mSVGEffectsBuildingDepth++;
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::ExitSVGEffectsContents()
|
|
{
|
|
mSVGEffectsBuildingDepth--;
|
|
MOZ_ASSERT(mSVGEffectsBuildingDepth >= 0);
|
|
MOZ_ASSERT(mScrollInfoItemsForHoisting);
|
|
if (mSVGEffectsBuildingDepth == 0) {
|
|
mScrollInfoItemsForHoisting = nullptr;
|
|
}
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::AppendNewScrollInfoItemForHoisting(nsDisplayScrollInfoLayer* aScrollInfoItem)
|
|
{
|
|
MOZ_ASSERT(ShouldBuildScrollInfoItemsForHoisting());
|
|
MOZ_ASSERT(mScrollInfoItemsForHoisting);
|
|
mScrollInfoItemsForHoisting->AppendToTop(aScrollInfoItem);
|
|
}
|
|
|
|
static nsRect
|
|
GetFrameArea(const nsDisplayListBuilder* aBuilder, const nsIFrame* aFrame)
|
|
{
|
|
nsRect area;
|
|
|
|
nsIScrollableFrame* scrollFrame = nsLayoutUtils::GetScrollableFrameFor(aFrame);
|
|
if (scrollFrame) {
|
|
// If the frame is content of a scrollframe, then we need to pick up the
|
|
// area corresponding to the overflow rect as well. Otherwise the parts of
|
|
// the overflow that are not occupied by descendants get skipped and the
|
|
// APZ code sends touch events to the content underneath instead.
|
|
// See https://bugzilla.mozilla.org/show_bug.cgi?id=1127773#c15.
|
|
area = aFrame->GetScrollableOverflowRect();
|
|
} else {
|
|
area = nsRect(nsPoint(0, 0), aFrame->GetSize());
|
|
}
|
|
|
|
if (!area.IsEmpty()) {
|
|
return area + aBuilder->ToReferenceFrame(aFrame);
|
|
}
|
|
|
|
return area;
|
|
}
|
|
|
|
void
|
|
nsDisplayListBuilder::BuildCompositorHitTestInfoIfNeeded(nsIFrame* aFrame,
|
|
nsDisplayList* aList,
|
|
const bool aBuildNew)
|
|
{
|
|
MOZ_ASSERT(aFrame);
|
|
MOZ_ASSERT(aList);
|
|
|
|
if (!BuildCompositorHitTestInfo()) {
|
|
return;
|
|
}
|
|
|
|
CompositorHitTestInfo info = aFrame->GetCompositorHitTestInfo(this);
|
|
if (!ShouldBuildCompositorHitTestInfo(aFrame, info, aBuildNew)) {
|
|
// Either the parent hit test info can be reused, or this frame has no hit
|
|
// test flags set.
|
|
return;
|
|
}
|
|
|
|
nsDisplayCompositorHitTestInfo* item =
|
|
MakeDisplayItem<nsDisplayCompositorHitTestInfo>(this, aFrame, info);
|
|
|
|
SetCompositorHitTestInfo(item);
|
|
aList->AppendToTop(item);
|
|
}
|
|
|
|
bool
|
|
nsDisplayListBuilder::ShouldBuildCompositorHitTestInfo(const nsIFrame* aFrame,
|
|
const CompositorHitTestInfo& aInfo,
|
|
const bool aBuildNew) const
|
|
{
|
|
MOZ_ASSERT(mBuildCompositorHitTestInfo);
|
|
|
|
if (aInfo == CompositorHitTestInfo::eInvisibleToHitTest) {
|
|
return false;
|
|
}
|
|
|
|
if (!mCompositorHitTestInfo || !mLessEventRegionItems || aBuildNew) {
|
|
return true;
|
|
}
|
|
|
|
if (mCompositorHitTestInfo->HitTestInfo() != aInfo) {
|
|
// Hit test flags are different.
|
|
return true;
|
|
}
|
|
|
|
// Create a new item if the parent does not contain the child completely.
|
|
return !mCompositorHitTestInfo->Area().Contains(GetFrameArea(this, aFrame));
|
|
}
|
|
|
|
void nsDisplayListSet::MoveTo(const nsDisplayListSet& aDestination) const
|
|
{
|
|
aDestination.BorderBackground()->AppendToTop(BorderBackground());
|
|
aDestination.BlockBorderBackgrounds()->AppendToTop(BlockBorderBackgrounds());
|
|
aDestination.Floats()->AppendToTop(Floats());
|
|
aDestination.Content()->AppendToTop(Content());
|
|
aDestination.PositionedDescendants()->AppendToTop(PositionedDescendants());
|
|
aDestination.Outlines()->AppendToTop(Outlines());
|
|
}
|
|
|
|
static void
|
|
MoveListTo(nsDisplayList* aList, nsTArray<nsDisplayItem*>* aElements) {
|
|
nsDisplayItem* item;
|
|
while ((item = aList->RemoveBottom()) != nullptr) {
|
|
aElements->AppendElement(item);
|
|
}
|
|
}
|
|
|
|
nsRect
|
|
nsDisplayList::GetBounds(nsDisplayListBuilder* aBuilder) const {
|
|
nsRect bounds;
|
|
for (nsDisplayItem* i = GetBottom(); i != nullptr; i = i->GetAbove()) {
|
|
bounds.UnionRect(bounds, i->GetClippedBounds(aBuilder));
|
|
}
|
|
return bounds;
|
|
}
|
|
|
|
nsRect
|
|
nsDisplayList::GetClippedBoundsWithRespectToASR(nsDisplayListBuilder* aBuilder,
|
|
const ActiveScrolledRoot* aASR,
|
|
nsRect* aBuildingRect) const {
|
|
nsRect bounds;
|
|
for (nsDisplayItem* i = GetBottom(); i != nullptr; i = i->GetAbove()) {
|
|
nsRect r = i->GetClippedBounds(aBuilder);
|
|
if (aASR != i->GetActiveScrolledRoot() && !r.IsEmpty()) {
|
|
if (Maybe<nsRect> clip = i->GetClipWithRespectToASR(aBuilder, aASR)) {
|
|
r = clip.ref();
|
|
}
|
|
}
|
|
if (aBuildingRect) {
|
|
aBuildingRect->UnionRect(*aBuildingRect, i->GetBuildingRect());
|
|
}
|
|
bounds.UnionRect(bounds, r);
|
|
}
|
|
return bounds;
|
|
}
|
|
|
|
nsRect
|
|
nsDisplayList::GetBuildingRect() const {
|
|
nsRect result;
|
|
for (nsDisplayItem* i = GetBottom(); i != nullptr; i = i->GetAbove()) {
|
|
result.UnionRect(result, i->GetBuildingRect());
|
|
}
|
|
return result;
|
|
}
|
|
|
|
bool
|
|
nsDisplayList::ComputeVisibilityForRoot(nsDisplayListBuilder* aBuilder,
|
|
nsRegion* aVisibleRegion) {
|
|
AUTO_PROFILER_LABEL("nsDisplayList::ComputeVisibilityForRoot", GRAPHICS);
|
|
|
|
nsRegion r;
|
|
const ActiveScrolledRoot* rootASR = nullptr;
|
|
if (gfxPrefs::LayoutUseContainersForRootFrames()) {
|
|
rootASR = aBuilder->ActiveScrolledRootForRootScrollframe();
|
|
}
|
|
r.And(*aVisibleRegion, GetClippedBoundsWithRespectToASR(aBuilder, rootASR));
|
|
return ComputeVisibilityForSublist(aBuilder, aVisibleRegion, r.GetBounds());
|
|
}
|
|
|
|
static nsRegion
|
|
TreatAsOpaque(nsDisplayItem* aItem, nsDisplayListBuilder* aBuilder)
|
|
{
|
|
bool snap;
|
|
nsRegion opaque = aItem->GetOpaqueRegion(aBuilder, &snap);
|
|
if (aBuilder->IsForPluginGeometry() &&
|
|
aItem->GetType() != DisplayItemType::TYPE_COMPOSITOR_HITTEST_INFO)
|
|
{
|
|
// Treat all leaf chrome items as opaque, unless their frames are opacity:0.
|
|
// Since opacity:0 frames generate an nsDisplayOpacity, that item will
|
|
// not be treated as opaque here, so opacity:0 chrome content will be
|
|
// effectively ignored, as it should be.
|
|
// We treat leaf chrome items as opaque to ensure that they cover
|
|
// content plugins, for security reasons.
|
|
// Non-leaf chrome items don't render contents of their own so shouldn't
|
|
// be treated as opaque (and their bounds is just the union of their
|
|
// children, which might be a large area their contents don't really cover).
|
|
nsIFrame* f = aItem->Frame();
|
|
if (f->PresContext()->IsChrome() && !aItem->GetChildren() &&
|
|
f->StyleEffects()->mOpacity != 0.0) {
|
|
opaque = aItem->GetBounds(aBuilder, &snap);
|
|
}
|
|
}
|
|
if (opaque.IsEmpty()) {
|
|
return opaque;
|
|
}
|
|
nsRegion opaqueClipped;
|
|
for (auto iter = opaque.RectIter(); !iter.Done(); iter.Next()) {
|
|
opaqueClipped.Or(opaqueClipped,
|
|
aItem->GetClip().ApproximateIntersectInward(iter.Get()));
|
|
}
|
|
return opaqueClipped;
|
|
}
|
|
|
|
bool
|
|
nsDisplayList::ComputeVisibilityForSublist(nsDisplayListBuilder* aBuilder,
|
|
nsRegion* aVisibleRegion,
|
|
const nsRect& aListVisibleBounds)
|
|
{
|
|
#ifdef DEBUG
|
|
nsRegion r;
|
|
r.And(*aVisibleRegion, GetBounds(aBuilder));
|
|
// XXX this fails sometimes:
|
|
NS_WARNING_ASSERTION(r.GetBounds().IsEqualInterior(aListVisibleBounds),
|
|
"bad aListVisibleBounds");
|
|
#endif
|
|
|
|
bool anyVisible = false;
|
|
|
|
AutoTArray<nsDisplayItem*, 512> elements;
|
|
MoveListTo(this, &elements);
|
|
|
|
for (int32_t i = elements.Length() - 1; i >= 0; --i) {
|
|
nsDisplayItem* item = elements[i];
|
|
|
|
if (item->ForceNotVisible() && !item->GetSameCoordinateSystemChildren()) {
|
|
NS_ASSERTION(item->GetBuildingRect().IsEmpty(),
|
|
"invisible items should have empty vis rect");
|
|
item->SetPaintRect(nsRect());
|
|
} else {
|
|
nsRect bounds = item->GetClippedBounds(aBuilder);
|
|
|
|
nsRegion itemVisible;
|
|
itemVisible.And(*aVisibleRegion, bounds);
|
|
item->SetPaintRect(itemVisible.GetBounds());
|
|
}
|
|
|
|
if (item->ComputeVisibility(aBuilder, aVisibleRegion)) {
|
|
anyVisible = true;
|
|
|
|
nsRegion opaque = TreatAsOpaque(item, aBuilder);
|
|
// Subtract opaque item from the visible region
|
|
aBuilder->SubtractFromVisibleRegion(aVisibleRegion, opaque);
|
|
}
|
|
AppendToBottom(item);
|
|
}
|
|
|
|
mIsOpaque = !aVisibleRegion->Intersects(aListVisibleBounds);
|
|
return anyVisible;
|
|
}
|
|
|
|
static bool
|
|
TriggerPendingAnimationsOnSubDocuments(nsIDocument* aDocument, void* aReadyTime)
|
|
{
|
|
PendingAnimationTracker* tracker = aDocument->GetPendingAnimationTracker();
|
|
if (tracker) {
|
|
nsIPresShell* shell = aDocument->GetShell();
|
|
// If paint-suppression is in effect then we haven't finished painting
|
|
// this document yet so we shouldn't start animations
|
|
if (!shell || !shell->IsPaintingSuppressed()) {
|
|
const TimeStamp& readyTime = *static_cast<TimeStamp*>(aReadyTime);
|
|
tracker->TriggerPendingAnimationsOnNextTick(readyTime);
|
|
}
|
|
}
|
|
aDocument->EnumerateSubDocuments(TriggerPendingAnimationsOnSubDocuments,
|
|
aReadyTime);
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
TriggerPendingAnimations(nsIDocument* aDocument,
|
|
const TimeStamp& aReadyTime) {
|
|
MOZ_ASSERT(!aReadyTime.IsNull(),
|
|
"Animation ready time is not set. Perhaps we're using a layer"
|
|
" manager that doesn't update it");
|
|
TriggerPendingAnimationsOnSubDocuments(aDocument,
|
|
const_cast<TimeStamp*>(&aReadyTime));
|
|
}
|
|
|
|
LayerManager*
|
|
nsDisplayListBuilder::GetWidgetLayerManager(nsView** aView)
|
|
{
|
|
if (aView) {
|
|
*aView = RootReferenceFrame()->GetView();
|
|
}
|
|
if (RootReferenceFrame() != nsLayoutUtils::GetDisplayRootFrame(RootReferenceFrame())) {
|
|
return nullptr;
|
|
}
|
|
nsIWidget* window = RootReferenceFrame()->GetNearestWidget();
|
|
if (window) {
|
|
return window->GetLayerManager();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
FrameLayerBuilder*
|
|
nsDisplayList::BuildLayers(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aLayerManager,
|
|
uint32_t aFlags,
|
|
bool aIsWidgetTransaction)
|
|
{
|
|
nsIFrame* frame = aBuilder->RootReferenceFrame();
|
|
nsPresContext* presContext = frame->PresContext();
|
|
nsIPresShell* presShell = presContext->PresShell();
|
|
|
|
FrameLayerBuilder *layerBuilder = new FrameLayerBuilder();
|
|
layerBuilder->Init(aBuilder, aLayerManager);
|
|
|
|
if (aFlags & PAINT_COMPRESSED) {
|
|
layerBuilder->SetLayerTreeCompressionMode();
|
|
}
|
|
|
|
RefPtr<ContainerLayer> root;
|
|
{
|
|
AUTO_PROFILER_TRACING("Paint", "LayerBuilding");
|
|
|
|
if (XRE_IsContentProcess() && gfxPrefs::AlwaysPaint()) {
|
|
FrameLayerBuilder::InvalidateAllLayers(aLayerManager);
|
|
}
|
|
|
|
if (aIsWidgetTransaction) {
|
|
layerBuilder->DidBeginRetainedLayerTransaction(aLayerManager);
|
|
}
|
|
|
|
// Clear any ScrollMetadata that may have been set on the root layer on a
|
|
// previous paint. This paint will set new metrics if necessary, and if we
|
|
// don't clear the old one here, we may be left with extra metrics.
|
|
if (Layer* rootLayer = aLayerManager->GetRoot()) {
|
|
rootLayer->SetScrollMetadata(nsTArray<ScrollMetadata>());
|
|
}
|
|
|
|
ContainerLayerParameters containerParameters
|
|
(presShell->GetResolution(), presShell->GetResolution());
|
|
|
|
{
|
|
PaintTelemetry::AutoRecord record(PaintTelemetry::Metric::Layerization);
|
|
|
|
root = layerBuilder->
|
|
BuildContainerLayerFor(aBuilder, aLayerManager, frame, nullptr, this,
|
|
containerParameters, nullptr);
|
|
|
|
if (!record.GetStart().IsNull() && gfxPrefs::LayersDrawFPS()) {
|
|
if (PaintTiming* pt = ClientLayerManager::MaybeGetPaintTiming(aLayerManager)) {
|
|
pt->flbMs() = (TimeStamp::Now() - record.GetStart()).ToMilliseconds();
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!root) {
|
|
return nullptr;
|
|
}
|
|
// Root is being scaled up by the X/Y resolution. Scale it back down.
|
|
root->SetPostScale(1.0f/containerParameters.mXScale,
|
|
1.0f/containerParameters.mYScale);
|
|
root->SetScaleToResolution(presShell->ScaleToResolution(),
|
|
containerParameters.mXScale);
|
|
|
|
auto callback = [root](FrameMetrics::ViewID aScrollId) -> bool {
|
|
return nsLayoutUtils::ContainsMetricsWithId(root, aScrollId);
|
|
};
|
|
if (Maybe<ScrollMetadata> rootMetadata = nsLayoutUtils::GetRootMetadata(
|
|
aBuilder, root->Manager(), containerParameters, callback)) {
|
|
root->SetScrollMetadata(rootMetadata.value());
|
|
}
|
|
|
|
// NS_WARNING is debug-only, so don't even bother checking the conditions in
|
|
// a release build.
|
|
#ifdef DEBUG
|
|
bool usingDisplayport = false;
|
|
if (nsIFrame* rootScrollFrame = presShell->GetRootScrollFrame()) {
|
|
nsIContent* content = rootScrollFrame->GetContent();
|
|
if (content) {
|
|
usingDisplayport = nsLayoutUtils::HasDisplayPort(content);
|
|
}
|
|
}
|
|
if (usingDisplayport &&
|
|
!(root->GetContentFlags() & Layer::CONTENT_OPAQUE) &&
|
|
SpammyLayoutWarningsEnabled()) {
|
|
// See bug 693938, attachment 567017
|
|
NS_WARNING("Transparent content with displayports can be expensive.");
|
|
}
|
|
#endif
|
|
|
|
aLayerManager->SetRoot(root);
|
|
layerBuilder->WillEndTransaction();
|
|
}
|
|
return layerBuilder;
|
|
}
|
|
|
|
/**
|
|
* We paint by executing a layer manager transaction, constructing a
|
|
* single layer representing the display list, and then making it the
|
|
* root of the layer manager, drawing into the PaintedLayers.
|
|
*/
|
|
already_AddRefed<LayerManager> nsDisplayList::PaintRoot(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx,
|
|
uint32_t aFlags)
|
|
{
|
|
AUTO_PROFILER_LABEL("nsDisplayList::PaintRoot", GRAPHICS);
|
|
|
|
RefPtr<LayerManager> layerManager;
|
|
bool widgetTransaction = false;
|
|
bool doBeginTransaction = true;
|
|
nsView *view = nullptr;
|
|
if (aFlags & PAINT_USE_WIDGET_LAYERS) {
|
|
layerManager = aBuilder->GetWidgetLayerManager(&view);
|
|
if (layerManager) {
|
|
doBeginTransaction = !(aFlags & PAINT_EXISTING_TRANSACTION);
|
|
widgetTransaction = true;
|
|
}
|
|
}
|
|
if (!layerManager) {
|
|
if (!aCtx) {
|
|
NS_WARNING("Nowhere to paint into");
|
|
return nullptr;
|
|
}
|
|
layerManager = new BasicLayerManager(BasicLayerManager::BLM_OFFSCREEN);
|
|
}
|
|
|
|
nsIFrame* frame = aBuilder->RootReferenceFrame();
|
|
nsPresContext* presContext = frame->PresContext();
|
|
nsIPresShell* presShell = presContext->PresShell();
|
|
nsIDocument* document = presShell->GetDocument();
|
|
|
|
if (layerManager->GetBackendType() == layers::LayersBackend::LAYERS_WR) {
|
|
if (doBeginTransaction) {
|
|
if (aCtx) {
|
|
if (!layerManager->BeginTransactionWithTarget(aCtx)) {
|
|
return nullptr;
|
|
}
|
|
} else {
|
|
if (!layerManager->BeginTransaction()) {
|
|
return nullptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool prevIsCompositingCheap =
|
|
aBuilder->SetIsCompositingCheap(layerManager->IsCompositingCheap());
|
|
MaybeSetupTransactionIdAllocator(layerManager, presContext);
|
|
|
|
bool sent = false;
|
|
if (aFlags & PAINT_IDENTICAL_DISPLAY_LIST) {
|
|
sent = layerManager->EndEmptyTransaction();
|
|
}
|
|
|
|
if (!sent) {
|
|
// Windowed plugins are not supported with WebRender enabled.
|
|
// But PluginGeometry needs to be updated to show plugin.
|
|
// Windowed plugins are going to be removed by Bug 1296400.
|
|
nsRootPresContext* rootPresContext = presContext->GetRootPresContext();
|
|
if (rootPresContext && XRE_IsContentProcess()) {
|
|
if (aBuilder->WillComputePluginGeometry()) {
|
|
rootPresContext->ComputePluginGeometryUpdates(aBuilder->RootReferenceFrame(), aBuilder, this);
|
|
}
|
|
// This must be called even if PluginGeometryUpdates were not computed.
|
|
rootPresContext->CollectPluginGeometryUpdates(layerManager);
|
|
}
|
|
|
|
WebRenderLayerManager* wrManager = static_cast<WebRenderLayerManager*>(layerManager.get());
|
|
|
|
nsIDocShell* docShell = presContext->GetDocShell();
|
|
nsTArray<wr::WrFilterOp> wrFilters;
|
|
gfx::Matrix5x4* colorMatrix = nsDocShell::Cast(docShell)->GetColorMatrix();
|
|
if (colorMatrix) {
|
|
wr::WrFilterOp gs = {
|
|
wr::WrFilterOpType::ColorMatrix
|
|
};
|
|
MOZ_ASSERT(sizeof(gs.matrix) == sizeof(colorMatrix->components));
|
|
memcpy(&(gs.matrix), colorMatrix->components, sizeof(gs.matrix));
|
|
wrFilters.AppendElement(gs);
|
|
}
|
|
|
|
wrManager->EndTransactionWithoutLayer(this, aBuilder, wrFilters);
|
|
}
|
|
|
|
// For layers-free mode, we check the invalidation state bits in the EndTransaction.
|
|
// So we clear the invalidation state bits after EndTransaction.
|
|
if (widgetTransaction ||
|
|
// SVG-as-an-image docs don't paint as part of the retained layer tree,
|
|
// but they still need the invalidation state bits cleared in order for
|
|
// invalidation for CSS/SMIL animation to work properly.
|
|
(document && document->IsBeingUsedAsImage())) {
|
|
frame->ClearInvalidationStateBits();
|
|
}
|
|
|
|
aBuilder->SetIsCompositingCheap(prevIsCompositingCheap);
|
|
if (document && widgetTransaction) {
|
|
TriggerPendingAnimations(document, layerManager->GetAnimationReadyTime());
|
|
}
|
|
|
|
if (presContext->RefreshDriver()->HasScheduleFlush()) {
|
|
presContext->NotifyInvalidation(layerManager->GetLastTransactionId(), frame->GetRect());
|
|
}
|
|
|
|
return layerManager.forget();
|
|
}
|
|
|
|
NotifySubDocInvalidationFunc computeInvalidFunc =
|
|
presContext->MayHavePaintEventListenerInSubDocument() ? nsPresContext::NotifySubDocInvalidation : 0;
|
|
|
|
UniquePtr<LayerProperties> props;
|
|
|
|
bool computeInvalidRect = (computeInvalidFunc ||
|
|
(!layerManager->IsCompositingCheap() && layerManager->NeedsWidgetInvalidation())) &&
|
|
widgetTransaction;
|
|
|
|
if (computeInvalidRect) {
|
|
props = LayerProperties::CloneFrom(layerManager->GetRoot());
|
|
}
|
|
|
|
if (doBeginTransaction) {
|
|
if (aCtx) {
|
|
if (!layerManager->BeginTransactionWithTarget(aCtx)) {
|
|
return nullptr;
|
|
}
|
|
} else {
|
|
if (!layerManager->BeginTransaction()) {
|
|
return nullptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool temp = aBuilder->SetIsCompositingCheap(layerManager->IsCompositingCheap());
|
|
LayerManager::EndTransactionFlags flags = LayerManager::END_DEFAULT;
|
|
if (layerManager->NeedsWidgetInvalidation()) {
|
|
if (aFlags & PAINT_NO_COMPOSITE) {
|
|
flags = LayerManager::END_NO_COMPOSITE;
|
|
}
|
|
} else {
|
|
// Client layer managers never composite directly, so
|
|
// we don't need to worry about END_NO_COMPOSITE.
|
|
if (aBuilder->WillComputePluginGeometry()) {
|
|
flags = LayerManager::END_NO_REMOTE_COMPOSITE;
|
|
}
|
|
}
|
|
|
|
MaybeSetupTransactionIdAllocator(layerManager, presContext);
|
|
|
|
// Store the existing layer builder to reinstate it on return.
|
|
FrameLayerBuilder *oldBuilder = layerManager->GetLayerBuilder();
|
|
FrameLayerBuilder *layerBuilder = nullptr;
|
|
|
|
bool sent = false;
|
|
if (aFlags & PAINT_IDENTICAL_DISPLAY_LIST) {
|
|
sent = layerManager->EndEmptyTransaction(flags);
|
|
}
|
|
|
|
if (!sent) {
|
|
layerBuilder = BuildLayers(aBuilder, layerManager,
|
|
aFlags, widgetTransaction);
|
|
|
|
if (!layerBuilder) {
|
|
layerManager->SetUserData(&gLayerManagerLayerBuilder, oldBuilder);
|
|
return nullptr;
|
|
}
|
|
|
|
// If this is the content process, we ship plugin geometry updates over with layer
|
|
// updates, so calculate that now before we call EndTransaction.
|
|
nsRootPresContext* rootPresContext = presContext->GetRootPresContext();
|
|
if (rootPresContext && XRE_IsContentProcess()) {
|
|
if (aBuilder->WillComputePluginGeometry()) {
|
|
rootPresContext->ComputePluginGeometryUpdates(aBuilder->RootReferenceFrame(), aBuilder, this);
|
|
}
|
|
// The layer system caches plugin configuration information for forwarding
|
|
// with layer updates which needs to get set during reflow. This must be
|
|
// called even if there are no windowed plugins in the page.
|
|
rootPresContext->CollectPluginGeometryUpdates(layerManager);
|
|
}
|
|
|
|
layerManager->EndTransaction(FrameLayerBuilder::DrawPaintedLayer,
|
|
aBuilder, flags);
|
|
layerBuilder->DidEndTransaction();
|
|
}
|
|
|
|
if (widgetTransaction ||
|
|
// SVG-as-an-image docs don't paint as part of the retained layer tree,
|
|
// but they still need the invalidation state bits cleared in order for
|
|
// invalidation for CSS/SMIL animation to work properly.
|
|
(document && document->IsBeingUsedAsImage())) {
|
|
frame->ClearInvalidationStateBits();
|
|
}
|
|
|
|
aBuilder->SetIsCompositingCheap(temp);
|
|
|
|
if (document && widgetTransaction) {
|
|
TriggerPendingAnimations(document, layerManager->GetAnimationReadyTime());
|
|
}
|
|
|
|
nsIntRegion invalid;
|
|
bool areaOverflowed = false;
|
|
if (props) {
|
|
if (!props->ComputeDifferences(layerManager->GetRoot(), invalid, computeInvalidFunc)) {
|
|
areaOverflowed = true;
|
|
}
|
|
} else if (widgetTransaction) {
|
|
LayerProperties::ClearInvalidations(layerManager->GetRoot());
|
|
}
|
|
|
|
bool shouldInvalidate = layerManager->NeedsWidgetInvalidation();
|
|
if (view) {
|
|
if (props && !areaOverflowed) {
|
|
if (!invalid.IsEmpty()) {
|
|
nsIntRect bounds = invalid.GetBounds();
|
|
nsRect rect(presContext->DevPixelsToAppUnits(bounds.x),
|
|
presContext->DevPixelsToAppUnits(bounds.y),
|
|
presContext->DevPixelsToAppUnits(bounds.width),
|
|
presContext->DevPixelsToAppUnits(bounds.height));
|
|
if (shouldInvalidate) {
|
|
view->GetViewManager()->InvalidateViewNoSuppression(view, rect);
|
|
}
|
|
presContext->NotifyInvalidation(layerManager->GetLastTransactionId(), bounds);
|
|
}
|
|
} else if (shouldInvalidate) {
|
|
view->GetViewManager()->InvalidateView(view);
|
|
}
|
|
}
|
|
|
|
layerManager->SetUserData(&gLayerManagerLayerBuilder, oldBuilder);
|
|
return layerManager.forget();
|
|
}
|
|
|
|
nsDisplayItem* nsDisplayList::RemoveBottom() {
|
|
nsDisplayItem* item = mSentinel.mAbove;
|
|
if (!item)
|
|
return nullptr;
|
|
mSentinel.mAbove = item->mAbove;
|
|
if (item == mTop) {
|
|
// must have been the only item
|
|
mTop = &mSentinel;
|
|
}
|
|
item->mAbove = nullptr;
|
|
mLength--;
|
|
return item;
|
|
}
|
|
|
|
void nsDisplayList::DeleteAll(nsDisplayListBuilder* aBuilder) {
|
|
nsDisplayItem* item;
|
|
while ((item = RemoveBottom()) != nullptr) {
|
|
item->Destroy(aBuilder);
|
|
}
|
|
}
|
|
|
|
static bool
|
|
GetMouseThrough(const nsIFrame* aFrame)
|
|
{
|
|
if (!aFrame->IsXULBoxFrame())
|
|
return false;
|
|
|
|
const nsIFrame* frame = aFrame;
|
|
while (frame) {
|
|
if (frame->GetStateBits() & NS_FRAME_MOUSE_THROUGH_ALWAYS) {
|
|
return true;
|
|
} else if (frame->GetStateBits() & NS_FRAME_MOUSE_THROUGH_NEVER) {
|
|
return false;
|
|
}
|
|
frame = nsBox::GetParentXULBox(frame);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static bool
|
|
IsFrameReceivingPointerEvents(nsIFrame* aFrame)
|
|
{
|
|
return NS_STYLE_POINTER_EVENTS_NONE !=
|
|
aFrame->StyleUserInterface()->GetEffectivePointerEvents(aFrame);
|
|
}
|
|
|
|
// A list of frames, and their z depth. Used for sorting
|
|
// the results of hit testing.
|
|
struct FramesWithDepth
|
|
{
|
|
explicit FramesWithDepth(float aDepth) :
|
|
mDepth(aDepth)
|
|
{}
|
|
|
|
bool operator<(const FramesWithDepth& aOther) const {
|
|
if (!FuzzyEqual(mDepth, aOther.mDepth, 0.1f)) {
|
|
// We want to sort so that the shallowest item (highest depth value) is first
|
|
return mDepth > aOther.mDepth;
|
|
}
|
|
return this < &aOther;
|
|
}
|
|
bool operator==(const FramesWithDepth& aOther) const {
|
|
return this == &aOther;
|
|
}
|
|
|
|
float mDepth;
|
|
nsTArray<nsIFrame*> mFrames;
|
|
};
|
|
|
|
// Sort the frames by depth and then moves all the contained frames to the destination
|
|
static void
|
|
FlushFramesArray(nsTArray<FramesWithDepth>& aSource, nsTArray<nsIFrame*>* aDest)
|
|
{
|
|
if (aSource.IsEmpty()) {
|
|
return;
|
|
}
|
|
aSource.Sort();
|
|
uint32_t length = aSource.Length();
|
|
for (uint32_t i = 0; i < length; i++) {
|
|
aDest->AppendElements(std::move(aSource[i].mFrames));
|
|
}
|
|
aSource.Clear();
|
|
}
|
|
|
|
void nsDisplayList::HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect,
|
|
nsDisplayItem::HitTestState* aState,
|
|
nsTArray<nsIFrame*> *aOutFrames) const {
|
|
nsDisplayItem* item;
|
|
|
|
if (aState->mInPreserves3D) {
|
|
// Collect leaves of the current 3D rendering context.
|
|
for (item = GetBottom(); item; item = item->GetAbove()) {
|
|
auto itemType = item->GetType();
|
|
if (itemType != DisplayItemType::TYPE_TRANSFORM ||
|
|
!static_cast<nsDisplayTransform*>(item)->IsLeafOf3DContext()) {
|
|
item->HitTest(aBuilder, aRect, aState, aOutFrames);
|
|
} else {
|
|
// One of leaves in the current 3D rendering context.
|
|
aState->mItemBuffer.AppendElement(item);
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
int32_t itemBufferStart = aState->mItemBuffer.Length();
|
|
for (item = GetBottom(); item; item = item->GetAbove()) {
|
|
aState->mItemBuffer.AppendElement(item);
|
|
}
|
|
|
|
AutoTArray<FramesWithDepth, 16> temp;
|
|
for (int32_t i = aState->mItemBuffer.Length() - 1; i >= itemBufferStart; --i) {
|
|
// Pop element off the end of the buffer. We want to shorten the buffer
|
|
// so that recursive calls to HitTest have more buffer space.
|
|
item = aState->mItemBuffer[i];
|
|
aState->mItemBuffer.SetLength(i);
|
|
|
|
bool snap;
|
|
nsRect r = item->GetBounds(aBuilder, &snap).Intersect(aRect);
|
|
auto itemType = item->GetType();
|
|
bool same3DContext =
|
|
(itemType == DisplayItemType::TYPE_TRANSFORM &&
|
|
static_cast<nsDisplayTransform*>(item)->IsParticipating3DContext()) ||
|
|
(itemType == DisplayItemType::TYPE_PERSPECTIVE &&
|
|
item->Frame()->Extend3DContext());
|
|
if (same3DContext &&
|
|
(itemType != DisplayItemType::TYPE_TRANSFORM ||
|
|
!static_cast<nsDisplayTransform*>(item)->IsLeafOf3DContext())) {
|
|
if (!item->GetClip().MayIntersect(aRect)) {
|
|
continue;
|
|
}
|
|
AutoTArray<nsIFrame*, 1> neverUsed;
|
|
// Start gethering leaves of the 3D rendering context, and
|
|
// append leaves at the end of mItemBuffer. Leaves are
|
|
// processed at following iterations.
|
|
aState->mInPreserves3D = true;
|
|
item->HitTest(aBuilder, aRect, aState, &neverUsed);
|
|
aState->mInPreserves3D = false;
|
|
i = aState->mItemBuffer.Length();
|
|
continue;
|
|
}
|
|
if (same3DContext || item->GetClip().MayIntersect(r)) {
|
|
AutoTArray<nsIFrame*, 16> outFrames;
|
|
item->HitTest(aBuilder, aRect, aState, &outFrames);
|
|
|
|
// For 3d transforms with preserve-3d we add hit frames into the temp list
|
|
// so we can sort them later, otherwise we add them directly to the output list.
|
|
nsTArray<nsIFrame*> *writeFrames = aOutFrames;
|
|
if (item->GetType() == DisplayItemType::TYPE_TRANSFORM &&
|
|
static_cast<nsDisplayTransform*>(item)->IsLeafOf3DContext()) {
|
|
if (outFrames.Length()) {
|
|
nsDisplayTransform *transform = static_cast<nsDisplayTransform*>(item);
|
|
nsPoint point = aRect.TopLeft();
|
|
// A 1x1 rect means a point, otherwise use the center of the rect
|
|
if (aRect.width != 1 || aRect.height != 1) {
|
|
point = aRect.Center();
|
|
}
|
|
temp.AppendElement(FramesWithDepth(transform->GetHitDepthAtPoint(aBuilder, point)));
|
|
writeFrames = &temp[temp.Length() - 1].mFrames;
|
|
}
|
|
} else {
|
|
// We may have just finished a run of consecutive preserve-3d transforms,
|
|
// so flush these into the destination array before processing our frame list.
|
|
FlushFramesArray(temp, aOutFrames);
|
|
}
|
|
|
|
for (uint32_t j = 0; j < outFrames.Length(); j++) {
|
|
nsIFrame *f = outFrames.ElementAt(j);
|
|
// Filter out some frames depending on the type of hittest
|
|
// we are doing. For visibility tests, pass through all frames.
|
|
// For pointer tests, only pass through frames that are styled
|
|
// to receive pointer events.
|
|
if (aBuilder->HitTestIsForVisibility() ||
|
|
(!GetMouseThrough(f) && IsFrameReceivingPointerEvents(f))) {
|
|
writeFrames->AppendElement(f);
|
|
}
|
|
}
|
|
|
|
if (aBuilder->HitTestIsForVisibility() &&
|
|
item->GetOpaqueRegion(aBuilder, &snap).Contains(aRect)) {
|
|
// We're exiting early, so pop the remaining items off the buffer.
|
|
aState->mItemBuffer.SetLength(itemBufferStart);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
// Clear any remaining preserve-3d transforms.
|
|
FlushFramesArray(temp, aOutFrames);
|
|
NS_ASSERTION(aState->mItemBuffer.Length() == uint32_t(itemBufferStart),
|
|
"How did we forget to pop some elements?");
|
|
}
|
|
|
|
static nsIContent* FindContentInDocument(nsDisplayItem* aItem, nsIDocument* aDoc) {
|
|
nsIFrame* f = aItem->Frame();
|
|
while (f) {
|
|
nsPresContext* pc = f->PresContext();
|
|
if (pc->Document() == aDoc) {
|
|
return f->GetContent();
|
|
}
|
|
f = nsLayoutUtils::GetCrossDocParentFrame(pc->PresShell()->GetRootFrame());
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
struct ZSortItem {
|
|
nsDisplayItem* item;
|
|
int32_t zIndex;
|
|
|
|
explicit ZSortItem(nsDisplayItem* aItem)
|
|
: item(aItem), zIndex(aItem->ZIndex()) {}
|
|
|
|
operator nsDisplayItem*() {
|
|
return item;
|
|
}
|
|
};
|
|
|
|
struct ZOrderComparator {
|
|
bool operator()(const ZSortItem& aLeft, const ZSortItem& aRight) const {
|
|
// Note that we can't just take the difference of the two
|
|
// z-indices here, because that might overflow a 32-bit int.
|
|
return aLeft.zIndex < aRight.zIndex;
|
|
}
|
|
};
|
|
|
|
void nsDisplayList::SortByZOrder() {
|
|
Sort<ZSortItem>(ZOrderComparator());
|
|
}
|
|
|
|
struct ContentComparator {
|
|
nsIContent* mCommonAncestor;
|
|
|
|
explicit ContentComparator(nsIContent* aCommonAncestor)
|
|
: mCommonAncestor(aCommonAncestor) {}
|
|
|
|
bool operator()(nsDisplayItem* aLeft, nsDisplayItem* aRight) const {
|
|
// It's possible that the nsIContent for aItem1 or aItem2 is in a subdocument
|
|
// of commonAncestor, because display items for subdocuments have been
|
|
// mixed into the same list. Ensure that we're looking at content
|
|
// in commonAncestor's document.
|
|
nsIDocument* commonAncestorDoc = mCommonAncestor->OwnerDoc();
|
|
nsIContent* content1 = FindContentInDocument(aLeft, commonAncestorDoc);
|
|
nsIContent* content2 = FindContentInDocument(aRight, commonAncestorDoc);
|
|
if (!content1 || !content2) {
|
|
NS_ERROR("Document trees are mixed up!");
|
|
// Something weird going on
|
|
return true;
|
|
}
|
|
return nsLayoutUtils::CompareTreePosition(content1, content2, mCommonAncestor) < 0;
|
|
}
|
|
};
|
|
|
|
void nsDisplayList::SortByContentOrder(nsIContent* aCommonAncestor) {
|
|
Sort<nsDisplayItem*>(ContentComparator(aCommonAncestor));
|
|
}
|
|
|
|
nsDisplayItem::nsDisplayItem(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame)
|
|
: nsDisplayItem(aBuilder, aFrame,
|
|
aBuilder->CurrentActiveScrolledRoot())
|
|
{}
|
|
|
|
nsDisplayItem::nsDisplayItem(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame,
|
|
const ActiveScrolledRoot* aActiveScrolledRoot,
|
|
bool aAnonymous)
|
|
: mFrame(aFrame)
|
|
, mActiveScrolledRoot(aActiveScrolledRoot)
|
|
, mAnimatedGeometryRoot(nullptr)
|
|
, mForceNotVisible(aBuilder->IsBuildingInvisibleItems())
|
|
, mDisableSubpixelAA(false)
|
|
, mReusedItem(false)
|
|
, mBackfaceHidden(mFrame->In3DContextAndBackfaceIsHidden())
|
|
, mPaintRectValid(false)
|
|
#ifdef MOZ_DUMP_PAINTING
|
|
, mPainted(false)
|
|
#endif
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayItem);
|
|
if (aBuilder->IsRetainingDisplayList() && !aAnonymous) {
|
|
mFrame->AddDisplayItem(this);
|
|
}
|
|
mReferenceFrame = aBuilder->FindReferenceFrameFor(aFrame, &mToReferenceFrame);
|
|
// This can return the wrong result if the item override ShouldFixToViewport(),
|
|
// the item needs to set it again in its constructor.
|
|
mAnimatedGeometryRoot = aBuilder->FindAnimatedGeometryRootFor(aFrame);
|
|
MOZ_ASSERT(nsLayoutUtils::IsAncestorFrameCrossDoc(aBuilder->RootReferenceFrame(),
|
|
*mAnimatedGeometryRoot), "Bad");
|
|
NS_ASSERTION(aBuilder->GetVisibleRect().width >= 0 ||
|
|
!aBuilder->IsForPainting(), "visible rect not set");
|
|
|
|
SetClipChain(aBuilder->ClipState().GetCurrentCombinedClipChain(aBuilder), true);
|
|
|
|
// The visible rect is for mCurrentFrame, so we have to use
|
|
// mCurrentOffsetToReferenceFrame
|
|
nsRect visible = aBuilder->GetVisibleRect() +
|
|
aBuilder->GetCurrentFrameOffsetToReferenceFrame();
|
|
SetBuildingRect(visible);
|
|
}
|
|
|
|
/* static */ bool
|
|
nsDisplayItem::ForceActiveLayers()
|
|
{
|
|
static bool sForce = false;
|
|
static bool sForceCached = false;
|
|
|
|
if (!sForceCached) {
|
|
Preferences::AddBoolVarCache(&sForce, "layers.force-active", false);
|
|
sForceCached = true;
|
|
}
|
|
|
|
return sForce;
|
|
}
|
|
|
|
static int32_t ZIndexForFrame(nsIFrame* aFrame)
|
|
{
|
|
if (!aFrame->IsAbsPosContainingBlock() && !aFrame->IsFlexOrGridItem())
|
|
return 0;
|
|
|
|
const nsStylePosition* position = aFrame->StylePosition();
|
|
if (position->mZIndex.GetUnit() == eStyleUnit_Integer)
|
|
return position->mZIndex.GetIntValue();
|
|
|
|
// sort the auto and 0 elements together
|
|
return 0;
|
|
}
|
|
|
|
int32_t
|
|
nsDisplayItem::ZIndex() const
|
|
{
|
|
return ZIndexForFrame(mFrame);
|
|
}
|
|
|
|
bool
|
|
nsDisplayItem::ComputeVisibility(nsDisplayListBuilder* aBuilder,
|
|
nsRegion* aVisibleRegion)
|
|
{
|
|
return !GetPaintRect().IsEmpty() &&
|
|
!IsInvisibleInRect(aVisibleRegion->GetBounds());
|
|
}
|
|
|
|
bool
|
|
nsDisplayItem::RecomputeVisibility(nsDisplayListBuilder* aBuilder,
|
|
nsRegion* aVisibleRegion,
|
|
bool aUseClipBounds) {
|
|
if (mForceNotVisible && !GetSameCoordinateSystemChildren()) {
|
|
// mForceNotVisible wants to ensure that this display item doesn't render
|
|
// anything itself. If this item has contents, then we obviously want to
|
|
// render those, so we don't need this check in that case.
|
|
NS_ASSERTION(GetBuildingRect().IsEmpty(),
|
|
"invisible items without children should have empty vis rect");
|
|
SetPaintRect(nsRect());
|
|
} else {
|
|
nsRect bounds;
|
|
if (aUseClipBounds) {
|
|
bounds = GetClippedBounds(aBuilder);
|
|
} else {
|
|
bool snap;
|
|
bounds = GetBounds(aBuilder, &snap);
|
|
}
|
|
|
|
nsRegion itemVisible;
|
|
itemVisible.And(*aVisibleRegion, bounds);
|
|
SetPaintRect(itemVisible.GetBounds());
|
|
}
|
|
|
|
// When we recompute visibility within layers we don't need to
|
|
// expand the visible region for content behind plugins (the plugin
|
|
// is not in the layer).
|
|
if (!ComputeVisibility(aBuilder, aVisibleRegion)) {
|
|
SetPaintRect(nsRect());
|
|
return false;
|
|
}
|
|
|
|
nsRegion opaque = TreatAsOpaque(this, aBuilder);
|
|
aBuilder->SubtractFromVisibleRegion(aVisibleRegion, opaque);
|
|
return true;
|
|
}
|
|
|
|
void
|
|
nsDisplayItem::SetClipChain(const DisplayItemClipChain* aClipChain,
|
|
bool aStore)
|
|
{
|
|
mClipChain = aClipChain;
|
|
mClip = DisplayItemClipChain::ClipForASR(aClipChain, mActiveScrolledRoot);
|
|
|
|
if (aStore) {
|
|
mState.mClipChain = mClipChain;
|
|
mState.mClip = mClip;
|
|
}
|
|
}
|
|
|
|
Maybe<nsRect>
|
|
nsDisplayItem::GetClipWithRespectToASR(nsDisplayListBuilder* aBuilder,
|
|
const ActiveScrolledRoot* aASR) const
|
|
{
|
|
if (const DisplayItemClip* clip = DisplayItemClipChain::ClipForASR(GetClipChain(), aASR)) {
|
|
return Some(clip->GetClipRect());
|
|
}
|
|
#ifdef DEBUG
|
|
if (!gfxPrefs::LayoutUseContainersForRootFrames()) {
|
|
MOZ_ASSERT(false, "item should have finite clip with respect to aASR");
|
|
}
|
|
#endif
|
|
return Nothing();
|
|
}
|
|
|
|
void
|
|
nsDisplayItem::FuseClipChainUpTo(nsDisplayListBuilder* aBuilder,
|
|
const ActiveScrolledRoot* aASR)
|
|
{
|
|
const DisplayItemClipChain* sc = mClipChain;
|
|
DisplayItemClip mergedClip;
|
|
while (sc && ActiveScrolledRoot::PickDescendant(aASR, sc->mASR) == sc->mASR) {
|
|
mergedClip.IntersectWith(sc->mClip);
|
|
sc = sc->mParent;
|
|
}
|
|
if (mergedClip.HasClip()) {
|
|
mClipChain = aBuilder->AllocateDisplayItemClipChain(mergedClip, aASR, sc);
|
|
mClip = &mClipChain->mClip;
|
|
} else {
|
|
mClipChain = nullptr;
|
|
mClip = nullptr;
|
|
}
|
|
}
|
|
|
|
bool
|
|
nsDisplayItem::ShouldUseAdvancedLayer(LayerManager* aManager, PrefFunc aFunc) const
|
|
{
|
|
return CanUseAdvancedLayer(aManager) ? aFunc() : false;
|
|
}
|
|
|
|
bool
|
|
nsDisplayItem::CanUseAdvancedLayer(LayerManager* aManager) const
|
|
{
|
|
return gfxPrefs::LayersAdvancedBasicLayerEnabled() ||
|
|
!aManager ||
|
|
aManager->GetBackendType() == layers::LayersBackend::LAYERS_WR;
|
|
}
|
|
|
|
static const DisplayItemClipChain*
|
|
FindCommonAncestorClipForIntersection(const DisplayItemClipChain* aOne,
|
|
const DisplayItemClipChain* aTwo)
|
|
{
|
|
for (const ActiveScrolledRoot* asr =
|
|
ActiveScrolledRoot::PickDescendant(aOne->mASR, aTwo->mASR);
|
|
asr;
|
|
asr = asr->mParent) {
|
|
if (aOne == aTwo) {
|
|
return aOne;
|
|
}
|
|
if (aOne->mASR == asr) {
|
|
aOne = aOne->mParent;
|
|
}
|
|
if (aTwo->mASR == asr) {
|
|
aTwo = aTwo->mParent;
|
|
}
|
|
if (!aOne) {
|
|
return aTwo;
|
|
}
|
|
if (!aTwo) {
|
|
return aOne;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void
|
|
nsDisplayItem::IntersectClip(nsDisplayListBuilder* aBuilder,
|
|
const DisplayItemClipChain* aOther,
|
|
bool aStore)
|
|
{
|
|
if (!aOther || mClipChain == aOther) {
|
|
return;
|
|
}
|
|
|
|
// aOther might be a reference to a clip on the stack. We need to make sure
|
|
// that CreateClipChainIntersection will allocate the actual intersected
|
|
// clip in the builder's arena, so for the mClipChain == nullptr case,
|
|
// we supply nullptr as the common ancestor so that CreateClipChainIntersection
|
|
// clones the whole chain.
|
|
const DisplayItemClipChain* ancestorClip =
|
|
mClipChain ? FindCommonAncestorClipForIntersection(mClipChain, aOther) : nullptr;
|
|
|
|
SetClipChain(aBuilder->CreateClipChainIntersection(ancestorClip, mClipChain, aOther),
|
|
aStore);
|
|
}
|
|
|
|
nsRect
|
|
nsDisplayItem::GetClippedBounds(nsDisplayListBuilder* aBuilder) const
|
|
{
|
|
bool snap;
|
|
nsRect r = GetBounds(aBuilder, &snap);
|
|
return GetClip().ApplyNonRoundedIntersection(r);
|
|
}
|
|
|
|
nsRect
|
|
nsDisplaySolidColor::GetBounds(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
*aSnap = true;
|
|
return mBounds;
|
|
}
|
|
|
|
LayerState
|
|
nsDisplaySolidColor::GetLayerState(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters)
|
|
{
|
|
if (ForceActiveLayers()) {
|
|
return LAYER_ACTIVE;
|
|
}
|
|
return LAYER_NONE;
|
|
}
|
|
|
|
already_AddRefed<Layer>
|
|
nsDisplaySolidColor::BuildLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aContainerParameters)
|
|
{
|
|
RefPtr<ColorLayer> layer = static_cast<ColorLayer*>
|
|
(aManager->GetLayerBuilder()->GetLeafLayerFor(aBuilder, this));
|
|
if (!layer) {
|
|
layer = aManager->CreateColorLayer();
|
|
if (!layer) {
|
|
return nullptr;
|
|
}
|
|
}
|
|
layer->SetColor(gfx::Color::FromABGR(mColor));
|
|
|
|
const int32_t appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
layer->SetBounds(mBounds.ToNearestPixels(appUnitsPerDevPixel));
|
|
layer->SetBaseTransform(gfx::Matrix4x4::Translation(aContainerParameters.mOffset.x,
|
|
aContainerParameters.mOffset.y, 0));
|
|
|
|
return layer.forget();
|
|
}
|
|
|
|
void
|
|
nsDisplaySolidColor::Paint(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx)
|
|
{
|
|
int32_t appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
DrawTarget* drawTarget = aCtx->GetDrawTarget();
|
|
Rect rect =
|
|
NSRectToSnappedRect(GetPaintRect(), appUnitsPerDevPixel, *drawTarget);
|
|
drawTarget->FillRect(rect, ColorPattern(ToDeviceColor(mColor)));
|
|
}
|
|
|
|
void
|
|
nsDisplaySolidColor::WriteDebugInfo(std::stringstream& aStream)
|
|
{
|
|
aStream << " (rgba "
|
|
<< (int)NS_GET_R(mColor) << ","
|
|
<< (int)NS_GET_G(mColor) << ","
|
|
<< (int)NS_GET_B(mColor) << ","
|
|
<< (int)NS_GET_A(mColor) << ")";
|
|
}
|
|
|
|
bool
|
|
nsDisplaySolidColor::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
LayoutDeviceRect bounds = LayoutDeviceRect::FromAppUnits(
|
|
GetPaintRect(), mFrame->PresContext()->AppUnitsPerDevPixel());
|
|
wr::LayoutRect roundedRect = wr::ToRoundedLayoutRect(bounds);
|
|
|
|
aBuilder.PushRect(roundedRect,
|
|
roundedRect,
|
|
!BackfaceIsHidden(),
|
|
wr::ToColorF(ToDeviceColor(mColor)));
|
|
|
|
return true;
|
|
}
|
|
|
|
nsRect
|
|
nsDisplaySolidColorRegion::GetBounds(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
*aSnap = true;
|
|
return mRegion.GetBounds();
|
|
}
|
|
|
|
void
|
|
nsDisplaySolidColorRegion::Paint(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx)
|
|
{
|
|
int32_t appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
DrawTarget* drawTarget = aCtx->GetDrawTarget();
|
|
ColorPattern color(mColor);
|
|
for (auto iter = mRegion.RectIter(); !iter.Done(); iter.Next()) {
|
|
Rect rect =
|
|
NSRectToSnappedRect(iter.Get(), appUnitsPerDevPixel, *drawTarget);
|
|
drawTarget->FillRect(rect, color);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsDisplaySolidColorRegion::WriteDebugInfo(std::stringstream& aStream)
|
|
{
|
|
aStream << " (rgba "
|
|
<< int(mColor.r * 255) << ","
|
|
<< int(mColor.g * 255) << ","
|
|
<< int(mColor.b * 255) << ","
|
|
<< mColor.a << ")";
|
|
}
|
|
|
|
bool
|
|
nsDisplaySolidColorRegion::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
for (auto iter = mRegion.RectIter(); !iter.Done(); iter.Next()) {
|
|
nsRect rect = iter.Get();
|
|
LayoutDeviceRect layerRects = LayoutDeviceRect::FromAppUnits(
|
|
rect, mFrame->PresContext()->AppUnitsPerDevPixel());
|
|
wr::LayoutRect roundedRect = wr::ToRoundedLayoutRect(layerRects);
|
|
aBuilder.PushRect(roundedRect,
|
|
roundedRect,
|
|
!BackfaceIsHidden(),
|
|
wr::ToColorF(ToDeviceColor(mColor)));
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
RegisterThemeGeometry(nsDisplayListBuilder* aBuilder, nsDisplayItem* aItem,
|
|
nsIFrame* aFrame, nsITheme::ThemeGeometryType aType)
|
|
{
|
|
if (aBuilder->IsInChromeDocumentOrPopup() && !aBuilder->IsInTransform()) {
|
|
nsIFrame* displayRoot = nsLayoutUtils::GetDisplayRootFrame(aFrame);
|
|
nsPoint offset = aBuilder->IsInSubdocument() ? aBuilder->ToReferenceFrame(aFrame)
|
|
: aFrame->GetOffsetTo(displayRoot);
|
|
nsRect borderBox = nsRect(offset, aFrame->GetSize());
|
|
aBuilder->RegisterThemeGeometry(aType, aItem,
|
|
LayoutDeviceIntRect::FromUnknownRect(
|
|
borderBox.ToNearestPixels(
|
|
aFrame->PresContext()->AppUnitsPerDevPixel())));
|
|
}
|
|
}
|
|
|
|
// Return the bounds of the viewport relative to |aFrame|'s reference frame.
|
|
// Returns Nothing() if transforming into |aFrame|'s coordinate space fails.
|
|
static Maybe<nsRect>
|
|
GetViewportRectRelativeToReferenceFrame(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame)
|
|
{
|
|
nsIFrame* rootFrame = aFrame->PresShell()->GetRootFrame();
|
|
nsRect rootRect = rootFrame->GetRectRelativeToSelf();
|
|
if (nsLayoutUtils::TransformRect(rootFrame, aFrame, rootRect) == nsLayoutUtils::TRANSFORM_SUCCEEDED) {
|
|
return Some(rootRect + aBuilder->ToReferenceFrame(aFrame));
|
|
}
|
|
return Nothing();
|
|
}
|
|
|
|
/* static */ nsDisplayBackgroundImage::InitData
|
|
nsDisplayBackgroundImage::GetInitData(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame,
|
|
uint32_t aLayer,
|
|
const nsRect& aBackgroundRect,
|
|
ComputedStyle* aBackgroundStyle)
|
|
{
|
|
nsPresContext* presContext = aFrame->PresContext();
|
|
uint32_t flags = aBuilder->GetBackgroundPaintFlags();
|
|
const nsStyleImageLayers::Layer &layer = aBackgroundStyle->StyleBackground()->mImage.mLayers[aLayer];
|
|
|
|
bool isTransformedFixed;
|
|
nsBackgroundLayerState state =
|
|
nsCSSRendering::PrepareImageLayer(presContext, aFrame, flags,
|
|
aBackgroundRect, aBackgroundRect, layer,
|
|
&isTransformedFixed);
|
|
|
|
// background-attachment:fixed is treated as background-attachment:scroll
|
|
// if it's affected by a transform.
|
|
// See https://www.w3.org/Bugs/Public/show_bug.cgi?id=17521.
|
|
bool shouldTreatAsFixed =
|
|
layer.mAttachment == StyleImageLayerAttachment::Fixed && !isTransformedFixed;
|
|
|
|
bool shouldFixToViewport = shouldTreatAsFixed && !layer.mImage.IsEmpty();
|
|
bool isRasterImage = state.mImageRenderer.IsRasterImage();
|
|
nsCOMPtr<imgIContainer> image;
|
|
if (isRasterImage) {
|
|
image = state.mImageRenderer.GetImage();
|
|
}
|
|
return InitData{
|
|
aBuilder, aFrame, aBackgroundStyle, image, aBackgroundRect,
|
|
state.mFillArea, state.mDestArea, aLayer, isRasterImage,
|
|
shouldFixToViewport
|
|
};
|
|
}
|
|
|
|
nsDisplayBackgroundImage::nsDisplayBackgroundImage(nsDisplayListBuilder* aBuilder,
|
|
const InitData& aInitData,
|
|
nsIFrame* aFrameForBounds)
|
|
: nsDisplayImageContainer(aBuilder, aInitData.frame)
|
|
, mBackgroundStyle(aInitData.backgroundStyle)
|
|
, mImage(aInitData.image)
|
|
, mDependentFrame(nullptr)
|
|
, mBackgroundRect(aInitData.backgroundRect)
|
|
, mFillRect(aInitData.fillArea)
|
|
, mDestRect(aInitData.destArea)
|
|
, mLayer(aInitData.layer)
|
|
, mIsRasterImage(aInitData.isRasterImage)
|
|
, mShouldFixToViewport(aInitData.shouldFixToViewport)
|
|
, mImageFlags(0)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayBackgroundImage);
|
|
|
|
mBounds = GetBoundsInternal(aInitData.builder, aFrameForBounds);
|
|
if (mShouldFixToViewport) {
|
|
mAnimatedGeometryRoot = aInitData.builder->FindAnimatedGeometryRootFor(this);
|
|
|
|
// Expand the item's visible rect to cover the entire bounds, limited to the
|
|
// viewport rect. This is necessary because the background's clip can move
|
|
// asynchronously.
|
|
if (Maybe<nsRect> viewportRect = GetViewportRectRelativeToReferenceFrame(aInitData.builder, mFrame)) {
|
|
SetBuildingRect(mBounds.Intersect(*viewportRect));
|
|
}
|
|
}
|
|
}
|
|
|
|
nsDisplayBackgroundImage::~nsDisplayBackgroundImage()
|
|
{
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
MOZ_COUNT_DTOR(nsDisplayBackgroundImage);
|
|
#endif
|
|
if (mDependentFrame) {
|
|
mDependentFrame->RemoveDisplayItem(this);
|
|
}
|
|
}
|
|
|
|
static nsIFrame* GetBackgroundComputedStyleFrame(nsIFrame* aFrame)
|
|
{
|
|
nsIFrame* f;
|
|
if (!nsCSSRendering::FindBackgroundFrame(aFrame, &f)) {
|
|
// We don't want to bail out if moz-appearance is set on a root
|
|
// node. If it has a parent content node, bail because it's not
|
|
// a root, other wise keep going in order to let the theme stuff
|
|
// draw the background. The canvas really should be drawing the
|
|
// bg, but there's no way to hook that up via css.
|
|
if (!aFrame->StyleDisplay()->mAppearance) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsIContent* content = aFrame->GetContent();
|
|
if (!content || content->GetParent()) {
|
|
return nullptr;
|
|
}
|
|
|
|
f = aFrame;
|
|
}
|
|
return f;
|
|
}
|
|
|
|
static void
|
|
SetBackgroundClipRegion(DisplayListClipState::AutoSaveRestore& aClipState,
|
|
nsIFrame* aFrame, const nsPoint& aToReferenceFrame,
|
|
const nsStyleImageLayers::Layer& aLayer,
|
|
const nsRect& aBackgroundRect,
|
|
bool aWillPaintBorder)
|
|
{
|
|
nsCSSRendering::ImageLayerClipState clip;
|
|
nsCSSRendering::GetImageLayerClip(aLayer, aFrame, *aFrame->StyleBorder(),
|
|
aBackgroundRect, aBackgroundRect, aWillPaintBorder,
|
|
aFrame->PresContext()->AppUnitsPerDevPixel(),
|
|
&clip);
|
|
|
|
if (clip.mHasAdditionalBGClipArea) {
|
|
aClipState.ClipContentDescendants(clip.mAdditionalBGClipArea, clip.mBGClipArea,
|
|
clip.mHasRoundedCorners ? clip.mRadii : nullptr);
|
|
} else {
|
|
aClipState.ClipContentDescendants(clip.mBGClipArea, clip.mHasRoundedCorners ? clip.mRadii : nullptr);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This is used for the find bar highlighter overlay. It's only accessible
|
|
* through the AnonymousContent API, so it's not exposed to general web pages.
|
|
*/
|
|
static bool
|
|
SpecialCutoutRegionCase(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame,
|
|
const nsRect& aBackgroundRect,
|
|
nsDisplayList* aList,
|
|
nscolor aColor)
|
|
{
|
|
nsIContent* content = aFrame->GetContent();
|
|
if (!content) {
|
|
return false;
|
|
}
|
|
|
|
void* cutoutRegion = content->GetProperty(nsGkAtoms::cutoutregion);
|
|
if (!cutoutRegion) {
|
|
return false;
|
|
}
|
|
|
|
if (NS_GET_A(aColor) == 0) {
|
|
return true;
|
|
}
|
|
|
|
nsRegion region;
|
|
region.Sub(aBackgroundRect, *static_cast<nsRegion*>(cutoutRegion));
|
|
region.MoveBy(aBuilder->ToReferenceFrame(aFrame));
|
|
aList->AppendToTop(
|
|
MakeDisplayItem<nsDisplaySolidColorRegion>(aBuilder, aFrame, region, aColor));
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
/*static*/ bool
|
|
nsDisplayBackgroundImage::AppendBackgroundItemsToTop(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame,
|
|
const nsRect& aBackgroundRect,
|
|
nsDisplayList* aList,
|
|
bool aAllowWillPaintBorderOptimization,
|
|
ComputedStyle* aComputedStyle,
|
|
const nsRect& aBackgroundOriginRect,
|
|
nsIFrame* aSecondaryReferenceFrame)
|
|
{
|
|
ComputedStyle* bgSC = aComputedStyle;
|
|
const nsStyleBackground* bg = nullptr;
|
|
nsRect bgRect = aBackgroundRect + aBuilder->ToReferenceFrame(aFrame);
|
|
nsRect bgOriginRect = bgRect;
|
|
if (!aBackgroundOriginRect.IsEmpty()) {
|
|
bgOriginRect = aBackgroundOriginRect + aBuilder->ToReferenceFrame(aFrame);
|
|
}
|
|
nsPresContext* presContext = aFrame->PresContext();
|
|
bool isThemed = aFrame->IsThemed();
|
|
nsIFrame* dependentFrame = nullptr;
|
|
if (!isThemed) {
|
|
if (!bgSC) {
|
|
dependentFrame = GetBackgroundComputedStyleFrame(aFrame);
|
|
if (dependentFrame) {
|
|
bgSC = dependentFrame->Style();
|
|
if (dependentFrame == aFrame) {
|
|
dependentFrame = nullptr;
|
|
}
|
|
}
|
|
}
|
|
if (bgSC) {
|
|
bg = bgSC->StyleBackground();
|
|
}
|
|
}
|
|
|
|
bool drawBackgroundColor = false;
|
|
// Dummy initialisation to keep Valgrind/Memcheck happy.
|
|
// See bug 1122375 comment 1.
|
|
nscolor color = NS_RGBA(0,0,0,0);
|
|
if (!nsCSSRendering::IsCanvasFrame(aFrame) && bg) {
|
|
bool drawBackgroundImage;
|
|
color =
|
|
nsCSSRendering::DetermineBackgroundColor(presContext, bgSC, aFrame,
|
|
drawBackgroundImage, drawBackgroundColor);
|
|
}
|
|
|
|
if (SpecialCutoutRegionCase(aBuilder, aFrame, aBackgroundRect, aList, color)) {
|
|
return false;
|
|
}
|
|
|
|
const nsStyleBorder* borderStyle = aFrame->StyleBorder();
|
|
const nsStyleEffects* effectsStyle = aFrame->StyleEffects();
|
|
bool hasInsetShadow = effectsStyle->mBoxShadow &&
|
|
effectsStyle->mBoxShadow->HasShadowWithInset(true);
|
|
bool willPaintBorder = aAllowWillPaintBorderOptimization &&
|
|
!isThemed && !hasInsetShadow &&
|
|
borderStyle->HasBorder();
|
|
|
|
nsPoint toRef = aBuilder->ToReferenceFrame(aFrame);
|
|
|
|
// An auxiliary list is necessary in case we have background blending; if that
|
|
// is the case, background items need to be wrapped by a blend container to
|
|
// isolate blending to the background
|
|
nsDisplayList bgItemList;
|
|
// Even if we don't actually have a background color to paint, we may still need
|
|
// to create an item for hit testing.
|
|
if ((drawBackgroundColor && color != NS_RGBA(0,0,0,0)) ||
|
|
aBuilder->IsForEventDelivery()) {
|
|
Maybe<DisplayListClipState::AutoSaveRestore> clipState;
|
|
nsRect bgColorRect = bgRect;
|
|
if (bg && !aBuilder->IsForEventDelivery()) {
|
|
// Disable the will-paint-border optimization for background
|
|
// colors with no border-radius. Enabling it for background colors
|
|
// doesn't help much (there are no tiling issues) and clipping the
|
|
// background breaks detection of the element's border-box being
|
|
// opaque. For nonzero border-radius we still need it because we
|
|
// want to inset the background if possible to avoid antialiasing
|
|
// artifacts along the rounded corners.
|
|
bool useWillPaintBorderOptimization = willPaintBorder &&
|
|
nsLayoutUtils::HasNonZeroCorner(borderStyle->mBorderRadius);
|
|
|
|
nsCSSRendering::ImageLayerClipState clip;
|
|
nsCSSRendering::GetImageLayerClip(bg->BottomLayer(), aFrame, *aFrame->StyleBorder(),
|
|
bgRect, bgRect, useWillPaintBorderOptimization,
|
|
aFrame->PresContext()->AppUnitsPerDevPixel(),
|
|
&clip);
|
|
|
|
bgColorRect = bgColorRect.Intersect(clip.mBGClipArea);
|
|
if (clip.mHasAdditionalBGClipArea) {
|
|
bgColorRect = bgColorRect.Intersect(clip.mAdditionalBGClipArea);
|
|
}
|
|
if (clip.mHasRoundedCorners) {
|
|
clipState.emplace(aBuilder);
|
|
clipState->ClipContentDescendants(clip.mBGClipArea, clip.mRadii);
|
|
}
|
|
}
|
|
nsDisplayBackgroundColor *bgItem;
|
|
if (aSecondaryReferenceFrame) {
|
|
bgItem =
|
|
MakeDisplayItem<nsDisplayTableBackgroundColor>(aBuilder, aSecondaryReferenceFrame, bgColorRect, bgSC,
|
|
drawBackgroundColor ? color : NS_RGBA(0, 0, 0, 0),
|
|
aFrame);
|
|
} else {
|
|
bgItem =
|
|
MakeDisplayItem<nsDisplayBackgroundColor>(aBuilder, aFrame, bgColorRect, bgSC,
|
|
drawBackgroundColor ? color : NS_RGBA(0, 0, 0, 0));
|
|
}
|
|
bgItem->SetDependentFrame(aBuilder, dependentFrame);
|
|
bgItemList.AppendToTop(bgItem);
|
|
}
|
|
|
|
if (isThemed) {
|
|
nsITheme* theme = presContext->GetTheme();
|
|
if (theme->NeedToClearBackgroundBehindWidget(aFrame, aFrame->StyleDisplay()->mAppearance) &&
|
|
aBuilder->IsInChromeDocumentOrPopup() && !aBuilder->IsInTransform()) {
|
|
bgItemList.AppendToTop(
|
|
MakeDisplayItem<nsDisplayClearBackground>(aBuilder, aFrame));
|
|
}
|
|
if (aSecondaryReferenceFrame) {
|
|
nsDisplayTableThemedBackground* bgItem =
|
|
MakeDisplayItem<nsDisplayTableThemedBackground>(aBuilder,
|
|
aSecondaryReferenceFrame,
|
|
bgRect,
|
|
aFrame);
|
|
bgItem->Init(aBuilder);
|
|
bgItemList.AppendToTop(bgItem);
|
|
} else {
|
|
nsDisplayThemedBackground* bgItem =
|
|
MakeDisplayItem<nsDisplayThemedBackground>(aBuilder, aFrame, bgRect);
|
|
bgItem->Init(aBuilder);
|
|
bgItemList.AppendToTop(bgItem);
|
|
}
|
|
aList->AppendToTop(&bgItemList);
|
|
return true;
|
|
}
|
|
|
|
if (!bg) {
|
|
aList->AppendToTop(&bgItemList);
|
|
return false;
|
|
}
|
|
|
|
const ActiveScrolledRoot* asr =
|
|
aBuilder->CurrentActiveScrolledRoot();
|
|
|
|
bool needBlendContainer = false;
|
|
|
|
// Passing bg == nullptr in this macro will result in one iteration with
|
|
// i = 0.
|
|
NS_FOR_VISIBLE_IMAGE_LAYERS_BACK_TO_FRONT(i, bg->mImage) {
|
|
if (bg->mImage.mLayers[i].mImage.IsEmpty()) {
|
|
continue;
|
|
}
|
|
|
|
if (bg->mImage.mLayers[i].mBlendMode != NS_STYLE_BLEND_NORMAL) {
|
|
needBlendContainer = true;
|
|
}
|
|
|
|
DisplayListClipState::AutoSaveRestore clipState(aBuilder);
|
|
if (!aBuilder->IsForEventDelivery()) {
|
|
const nsStyleImageLayers::Layer& layer = bg->mImage.mLayers[i];
|
|
SetBackgroundClipRegion(clipState, aFrame, toRef,
|
|
layer, bgRect, willPaintBorder);
|
|
}
|
|
|
|
nsDisplayList thisItemList;
|
|
nsDisplayBackgroundImage::InitData bgData =
|
|
nsDisplayBackgroundImage::GetInitData(aBuilder, aFrame, i, bgOriginRect, bgSC);
|
|
|
|
if (bgData.shouldFixToViewport) {
|
|
|
|
auto* displayData = aBuilder->GetCurrentFixedBackgroundDisplayData();
|
|
nsDisplayListBuilder::AutoBuildingDisplayList
|
|
buildingDisplayList(aBuilder, aFrame, aBuilder->GetVisibleRect(), aBuilder->GetDirtyRect(), false);
|
|
|
|
nsDisplayListBuilder::AutoCurrentActiveScrolledRootSetter asrSetter(aBuilder);
|
|
if (displayData) {
|
|
asrSetter.SetCurrentActiveScrolledRoot(
|
|
displayData->mContainingBlockActiveScrolledRoot);
|
|
if (nsLayoutUtils::UsesAsyncScrolling(aFrame)) {
|
|
// Override the dirty rect on the builder to be the dirty rect of
|
|
// the viewport.
|
|
// displayData->mDirtyRect is relative to the presshell's viewport
|
|
// frame (the root frame), and we need it to be relative to aFrame.
|
|
nsIFrame* rootFrame = aBuilder->CurrentPresShellState()->mPresShell->GetRootFrame();
|
|
// There cannot be any transforms between aFrame and rootFrame
|
|
// because then bgData.shouldFixToViewport would have been false.
|
|
nsRect visibleRect = displayData->mVisibleRect + aFrame->GetOffsetTo(rootFrame);
|
|
aBuilder->SetVisibleRect(visibleRect);
|
|
nsRect dirtyRect = displayData->mDirtyRect + aFrame->GetOffsetTo(rootFrame);
|
|
aBuilder->SetDirtyRect(dirtyRect);
|
|
}
|
|
}
|
|
nsDisplayBackgroundImage* bgItem = nullptr;
|
|
{
|
|
// The clip is captured by the nsDisplayFixedPosition, so clear the
|
|
// clip for the nsDisplayBackgroundImage inside.
|
|
DisplayListClipState::AutoSaveRestore bgImageClip(aBuilder);
|
|
bgImageClip.Clear();
|
|
if (aSecondaryReferenceFrame) {
|
|
nsDisplayBackgroundImage::InitData tableData = bgData;
|
|
nsIFrame* styleFrame = tableData.frame;
|
|
tableData.frame = aSecondaryReferenceFrame;
|
|
bgItem = MakeDisplayItem<nsDisplayTableBackgroundImage>(aBuilder, tableData, styleFrame);
|
|
} else {
|
|
bgItem = MakeDisplayItem<nsDisplayBackgroundImage>(aBuilder, bgData);
|
|
}
|
|
}
|
|
bgItem->SetDependentFrame(aBuilder, dependentFrame);
|
|
if (aSecondaryReferenceFrame) {
|
|
thisItemList.AppendToTop(
|
|
nsDisplayTableFixedPosition::CreateForFixedBackground(aBuilder,
|
|
aSecondaryReferenceFrame,
|
|
bgItem,
|
|
i,
|
|
aFrame));
|
|
} else {
|
|
thisItemList.AppendToTop(
|
|
nsDisplayFixedPosition::CreateForFixedBackground(aBuilder, aFrame, bgItem, i));
|
|
}
|
|
|
|
} else {
|
|
nsDisplayBackgroundImage* bgItem;
|
|
if (aSecondaryReferenceFrame) {
|
|
nsDisplayBackgroundImage::InitData tableData = bgData;
|
|
nsIFrame* styleFrame = tableData.frame;
|
|
tableData.frame = aSecondaryReferenceFrame;
|
|
|
|
bgItem = MakeDisplayItem<nsDisplayTableBackgroundImage>(aBuilder, tableData, styleFrame);
|
|
} else {
|
|
bgItem = MakeDisplayItem<nsDisplayBackgroundImage>(aBuilder, bgData);
|
|
}
|
|
bgItem->SetDependentFrame(aBuilder, dependentFrame);
|
|
thisItemList.AppendToTop(bgItem);
|
|
}
|
|
|
|
if (bg->mImage.mLayers[i].mBlendMode != NS_STYLE_BLEND_NORMAL) {
|
|
DisplayListClipState::AutoSaveRestore blendClip(aBuilder);
|
|
// asr is scrolled. Even if we wrap a fixed background layer, that's
|
|
// fine, because the item will have a scrolled clip that limits the
|
|
// item with respect to asr.
|
|
if (aSecondaryReferenceFrame) {
|
|
thisItemList.AppendToTop(
|
|
MakeDisplayItem<nsDisplayTableBlendMode>(aBuilder, aSecondaryReferenceFrame, &thisItemList,
|
|
bg->mImage.mLayers[i].mBlendMode,
|
|
asr, i + 1, aFrame));
|
|
} else {
|
|
thisItemList.AppendToTop(
|
|
MakeDisplayItem<nsDisplayBlendMode>(aBuilder, aFrame, &thisItemList,
|
|
bg->mImage.mLayers[i].mBlendMode,
|
|
asr, i + 1));
|
|
}
|
|
}
|
|
bgItemList.AppendToTop(&thisItemList);
|
|
}
|
|
|
|
if (needBlendContainer) {
|
|
DisplayListClipState::AutoSaveRestore blendContainerClip(aBuilder);
|
|
if (aSecondaryReferenceFrame) {
|
|
bgItemList.AppendToTop(
|
|
nsDisplayTableBlendContainer::CreateForBackgroundBlendMode(aBuilder, aSecondaryReferenceFrame,
|
|
&bgItemList, asr, aFrame));
|
|
} else {
|
|
bgItemList.AppendToTop(
|
|
nsDisplayBlendContainer::CreateForBackgroundBlendMode(aBuilder, aFrame, &bgItemList, asr));
|
|
}
|
|
}
|
|
|
|
aList->AppendToTop(&bgItemList);
|
|
return false;
|
|
}
|
|
|
|
// Check that the rounded border of aFrame, added to aToReferenceFrame,
|
|
// intersects aRect. Assumes that the unrounded border has already
|
|
// been checked for intersection.
|
|
static bool
|
|
RoundedBorderIntersectsRect(nsIFrame* aFrame,
|
|
const nsPoint& aFrameToReferenceFrame,
|
|
const nsRect& aTestRect)
|
|
{
|
|
if (!nsRect(aFrameToReferenceFrame, aFrame->GetSize()).Intersects(aTestRect))
|
|
return false;
|
|
|
|
nscoord radii[8];
|
|
return !aFrame->GetBorderRadii(radii) ||
|
|
nsLayoutUtils::RoundedRectIntersectsRect(nsRect(aFrameToReferenceFrame,
|
|
aFrame->GetSize()),
|
|
radii, aTestRect);
|
|
}
|
|
|
|
// Returns TRUE if aContainedRect is guaranteed to be contained in
|
|
// the rounded rect defined by aRoundedRect and aRadii. Complex cases are
|
|
// handled conservatively by returning FALSE in some situations where
|
|
// a more thorough analysis could return TRUE.
|
|
//
|
|
// See also RoundedRectIntersectsRect.
|
|
static bool RoundedRectContainsRect(const nsRect& aRoundedRect,
|
|
const nscoord aRadii[8],
|
|
const nsRect& aContainedRect) {
|
|
nsRegion rgn = nsLayoutUtils::RoundedRectIntersectRect(aRoundedRect, aRadii, aContainedRect);
|
|
return rgn.Contains(aContainedRect);
|
|
}
|
|
|
|
bool
|
|
nsDisplayBackgroundImage::CanOptimizeToImageLayer(LayerManager* aManager,
|
|
nsDisplayListBuilder* aBuilder)
|
|
{
|
|
if (!mBackgroundStyle) {
|
|
return false;
|
|
}
|
|
|
|
// We currently can't handle tiled backgrounds.
|
|
if (!mDestRect.Contains(mFillRect)) {
|
|
return false;
|
|
}
|
|
|
|
// For 'contain' and 'cover', we allow any pixel of the image to be sampled
|
|
// because there isn't going to be any spriting/atlasing going on.
|
|
const nsStyleImageLayers::Layer &layer = mBackgroundStyle->StyleBackground()->mImage.mLayers[mLayer];
|
|
bool allowPartialImages =
|
|
(layer.mSize.mWidthType == nsStyleImageLayers::Size::eContain ||
|
|
layer.mSize.mWidthType == nsStyleImageLayers::Size::eCover);
|
|
if (!allowPartialImages && !mFillRect.Contains(mDestRect)) {
|
|
return false;
|
|
}
|
|
|
|
return nsDisplayImageContainer::CanOptimizeToImageLayer(aManager, aBuilder);
|
|
}
|
|
|
|
nsRect
|
|
nsDisplayBackgroundImage::GetDestRect() const
|
|
{
|
|
return mDestRect;
|
|
}
|
|
|
|
already_AddRefed<imgIContainer>
|
|
nsDisplayBackgroundImage::GetImage()
|
|
{
|
|
nsCOMPtr<imgIContainer> image = mImage;
|
|
return image.forget();
|
|
}
|
|
|
|
nsDisplayBackgroundImage::ImageLayerization
|
|
nsDisplayBackgroundImage::ShouldCreateOwnLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager)
|
|
{
|
|
if (ForceActiveLayers()) {
|
|
return WHENEVER_POSSIBLE;
|
|
}
|
|
|
|
nsIFrame* backgroundStyleFrame = nsCSSRendering::FindBackgroundStyleFrame(StyleFrame());
|
|
if (ActiveLayerTracker::IsBackgroundPositionAnimated(aBuilder,
|
|
backgroundStyleFrame)) {
|
|
return WHENEVER_POSSIBLE;
|
|
}
|
|
|
|
if (nsLayoutUtils::AnimatedImageLayersEnabled() && mBackgroundStyle) {
|
|
const nsStyleImageLayers::Layer &layer = mBackgroundStyle->StyleBackground()->mImage.mLayers[mLayer];
|
|
const nsStyleImage* image = &layer.mImage;
|
|
if (image->GetType() == eStyleImageType_Image) {
|
|
imgIRequest* imgreq = image->GetImageData();
|
|
nsCOMPtr<imgIContainer> image;
|
|
if (imgreq &&
|
|
NS_SUCCEEDED(imgreq->GetImage(getter_AddRefs(image))) &&
|
|
image) {
|
|
bool animated = false;
|
|
if (NS_SUCCEEDED(image->GetAnimated(&animated)) && animated) {
|
|
return WHENEVER_POSSIBLE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (nsLayoutUtils::GPUImageScalingEnabled() &&
|
|
aManager->IsCompositingCheap()) {
|
|
return ONLY_FOR_SCALING;
|
|
}
|
|
|
|
return NO_LAYER_NEEDED;
|
|
}
|
|
|
|
static void CheckForBorderItem(nsDisplayItem *aItem, uint32_t& aFlags)
|
|
{
|
|
nsDisplayItem* nextItem = aItem->GetAbove();
|
|
while (nextItem && nextItem->GetType() == DisplayItemType::TYPE_BACKGROUND) {
|
|
nextItem = nextItem->GetAbove();
|
|
}
|
|
if (nextItem &&
|
|
nextItem->Frame() == aItem->Frame() &&
|
|
nextItem->GetType() == DisplayItemType::TYPE_BORDER) {
|
|
aFlags |= nsCSSRendering::PAINTBG_WILL_PAINT_BORDER;
|
|
}
|
|
}
|
|
|
|
LayerState
|
|
nsDisplayBackgroundImage::GetLayerState(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters)
|
|
{
|
|
mImageFlags = aBuilder->GetBackgroundPaintFlags();
|
|
CheckForBorderItem(this, mImageFlags);
|
|
|
|
ImageLayerization shouldLayerize = ShouldCreateOwnLayer(aBuilder, aManager);
|
|
if (shouldLayerize == NO_LAYER_NEEDED) {
|
|
// We can skip the call to CanOptimizeToImageLayer if we don't want a
|
|
// layer anyway.
|
|
return LAYER_NONE;
|
|
}
|
|
|
|
if (CanOptimizeToImageLayer(aManager, aBuilder)) {
|
|
if (shouldLayerize == WHENEVER_POSSIBLE) {
|
|
return LAYER_ACTIVE;
|
|
}
|
|
|
|
MOZ_ASSERT(shouldLayerize == ONLY_FOR_SCALING, "unhandled ImageLayerization value?");
|
|
|
|
MOZ_ASSERT(mImage);
|
|
int32_t imageWidth;
|
|
int32_t imageHeight;
|
|
mImage->GetWidth(&imageWidth);
|
|
mImage->GetHeight(&imageHeight);
|
|
NS_ASSERTION(imageWidth != 0 && imageHeight != 0, "Invalid image size!");
|
|
|
|
int32_t appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
LayoutDeviceRect destRect = LayoutDeviceRect::FromAppUnits(GetDestRect(), appUnitsPerDevPixel);
|
|
|
|
const LayerRect destLayerRect = destRect * aParameters.Scale();
|
|
|
|
// Calculate the scaling factor for the frame.
|
|
const gfxSize scale = gfxSize(destLayerRect.width / imageWidth,
|
|
destLayerRect.height / imageHeight);
|
|
|
|
if ((scale.width != 1.0f || scale.height != 1.0f) &&
|
|
(destLayerRect.width * destLayerRect.height >= 64 * 64)) {
|
|
// Separate this image into a layer.
|
|
// There's no point in doing this if we are not scaling at all or if the
|
|
// target size is pretty small.
|
|
return LAYER_ACTIVE;
|
|
}
|
|
}
|
|
|
|
return LAYER_NONE;
|
|
}
|
|
|
|
already_AddRefed<Layer>
|
|
nsDisplayBackgroundImage::BuildLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters)
|
|
{
|
|
RefPtr<ImageLayer> layer = static_cast<ImageLayer*>
|
|
(aManager->GetLayerBuilder()->GetLeafLayerFor(aBuilder, this));
|
|
if (!layer) {
|
|
layer = aManager->CreateImageLayer();
|
|
if (!layer)
|
|
return nullptr;
|
|
}
|
|
RefPtr<ImageContainer> imageContainer = GetContainer(aManager, aBuilder);
|
|
layer->SetContainer(imageContainer);
|
|
ConfigureLayer(layer, aParameters);
|
|
return layer.forget();
|
|
}
|
|
|
|
bool
|
|
nsDisplayBackgroundImage::CanBuildWebRenderDisplayItems(LayerManager* aManager, nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
if (aDisplayListBuilder) {
|
|
mImageFlags = aDisplayListBuilder->GetBackgroundPaintFlags();
|
|
}
|
|
|
|
return mBackgroundStyle->StyleBackground()->mImage.mLayers[mLayer].mClip != StyleGeometryBox::Text &&
|
|
nsCSSRendering::CanBuildWebRenderDisplayItemsForStyleImageLayer(aManager,
|
|
*StyleFrame()->PresContext(),
|
|
StyleFrame(),
|
|
mBackgroundStyle->StyleBackground(),
|
|
mLayer,
|
|
mImageFlags);
|
|
}
|
|
|
|
bool
|
|
nsDisplayBackgroundImage::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
ContainerLayerParameters parameter;
|
|
if (!CanBuildWebRenderDisplayItems(aManager, aDisplayListBuilder)) {
|
|
return false;
|
|
}
|
|
|
|
CheckForBorderItem(this, mImageFlags);
|
|
nsCSSRendering::PaintBGParams params =
|
|
nsCSSRendering::PaintBGParams::ForSingleLayer(*StyleFrame()->PresContext(),
|
|
GetPaintRect(), mBackgroundRect,
|
|
StyleFrame(), mImageFlags, mLayer,
|
|
CompositionOp::OP_OVER);
|
|
params.bgClipRect = &mBounds;
|
|
ImgDrawResult result =
|
|
nsCSSRendering::BuildWebRenderDisplayItemsForStyleImageLayer(params, aBuilder, aResources, aSc, aManager, this);
|
|
nsDisplayBackgroundGeometry::UpdateDrawResult(this, result);
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
nsDisplayBackgroundImage::HitTest(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aRect,
|
|
HitTestState* aState,
|
|
nsTArray<nsIFrame*> *aOutFrames)
|
|
{
|
|
if (RoundedBorderIntersectsRect(mFrame, ToReferenceFrame(), aRect)) {
|
|
aOutFrames->AppendElement(mFrame);
|
|
}
|
|
}
|
|
|
|
bool
|
|
nsDisplayBackgroundImage::ComputeVisibility(nsDisplayListBuilder* aBuilder,
|
|
nsRegion* aVisibleRegion)
|
|
{
|
|
if (!nsDisplayItem::ComputeVisibility(aBuilder, aVisibleRegion)) {
|
|
return false;
|
|
}
|
|
|
|
// Return false if the background was propagated away from this
|
|
// frame. We don't want this display item to show up and confuse
|
|
// anything.
|
|
return mBackgroundStyle;
|
|
}
|
|
|
|
/* static */ nsRegion
|
|
nsDisplayBackgroundImage::GetInsideClipRegion(const nsDisplayItem* aItem,
|
|
StyleGeometryBox aClip,
|
|
const nsRect& aRect,
|
|
const nsRect& aBackgroundRect)
|
|
{
|
|
nsRegion result;
|
|
if (aRect.IsEmpty())
|
|
return result;
|
|
|
|
nsIFrame *frame = aItem->Frame();
|
|
|
|
nsRect clipRect = aBackgroundRect;
|
|
if (frame->IsCanvasFrame()) {
|
|
nsCanvasFrame* canvasFrame = static_cast<nsCanvasFrame*>(frame);
|
|
clipRect = canvasFrame->CanvasArea() + aItem->ToReferenceFrame();
|
|
} else if (aClip == StyleGeometryBox::PaddingBox ||
|
|
aClip == StyleGeometryBox::ContentBox) {
|
|
nsMargin border = frame->GetUsedBorder();
|
|
if (aClip == StyleGeometryBox::ContentBox) {
|
|
border += frame->GetUsedPadding();
|
|
}
|
|
border.ApplySkipSides(frame->GetSkipSides());
|
|
clipRect.Deflate(border);
|
|
}
|
|
|
|
return clipRect.Intersect(aRect);
|
|
}
|
|
|
|
nsRegion
|
|
nsDisplayBackgroundImage::GetOpaqueRegion(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
nsRegion result;
|
|
*aSnap = false;
|
|
|
|
if (!mBackgroundStyle)
|
|
return result;
|
|
|
|
*aSnap = true;
|
|
|
|
// For StyleBoxDecorationBreak::Slice, don't try to optimize here, since
|
|
// this could easily lead to O(N^2) behavior inside InlineBackgroundData,
|
|
// which expects frames to be sent to it in content order, not reverse
|
|
// content order which we'll produce here.
|
|
// Of course, if there's only one frame in the flow, it doesn't matter.
|
|
if (mFrame->StyleBorder()->mBoxDecorationBreak ==
|
|
StyleBoxDecorationBreak::Clone ||
|
|
(!mFrame->GetPrevContinuation() && !mFrame->GetNextContinuation())) {
|
|
const nsStyleImageLayers::Layer& layer = mBackgroundStyle->StyleBackground()->mImage.mLayers[mLayer];
|
|
if (layer.mImage.IsOpaque() && layer.mBlendMode == NS_STYLE_BLEND_NORMAL &&
|
|
layer.mRepeat.mXRepeat != StyleImageLayerRepeat::Space &&
|
|
layer.mRepeat.mYRepeat != StyleImageLayerRepeat::Space &&
|
|
layer.mClip != StyleGeometryBox::Text) {
|
|
result = GetInsideClipRegion(this, layer.mClip, mBounds, mBackgroundRect);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
Maybe<nscolor>
|
|
nsDisplayBackgroundImage::IsUniform(nsDisplayListBuilder* aBuilder) const
|
|
{
|
|
if (!mBackgroundStyle) {
|
|
return Some(NS_RGBA(0,0,0,0));
|
|
}
|
|
return Nothing();
|
|
}
|
|
|
|
nsRect
|
|
nsDisplayBackgroundImage::GetPositioningArea() const
|
|
{
|
|
if (!mBackgroundStyle) {
|
|
return nsRect();
|
|
}
|
|
nsIFrame* attachedToFrame;
|
|
bool transformedFixed;
|
|
return nsCSSRendering::ComputeImageLayerPositioningArea(
|
|
mFrame->PresContext(), mFrame,
|
|
mBackgroundRect,
|
|
mBackgroundStyle->StyleBackground()->mImage.mLayers[mLayer],
|
|
&attachedToFrame,
|
|
&transformedFixed) + ToReferenceFrame();
|
|
}
|
|
|
|
bool
|
|
nsDisplayBackgroundImage::RenderingMightDependOnPositioningAreaSizeChange() const
|
|
{
|
|
if (!mBackgroundStyle)
|
|
return false;
|
|
|
|
nscoord radii[8];
|
|
if (mFrame->GetBorderRadii(radii)) {
|
|
// A change in the size of the positioning area might change the position
|
|
// of the rounded corners.
|
|
return true;
|
|
}
|
|
|
|
const nsStyleImageLayers::Layer &layer = mBackgroundStyle->StyleBackground()->mImage.mLayers[mLayer];
|
|
if (layer.RenderingMightDependOnPositioningAreaSizeChange()) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void
|
|
nsDisplayBackgroundImage::Paint(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx) {
|
|
PaintInternal(aBuilder, aCtx, GetPaintRect(), &mBounds);
|
|
}
|
|
|
|
void
|
|
nsDisplayBackgroundImage::PaintInternal(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx, const nsRect& aBounds,
|
|
nsRect* aClipRect) {
|
|
gfxContext* ctx = aCtx;
|
|
StyleGeometryBox clip = mBackgroundStyle->StyleBackground()->mImage.mLayers[mLayer].mClip;
|
|
|
|
if (clip == StyleGeometryBox::Text) {
|
|
if (!GenerateAndPushTextMask(StyleFrame(), aCtx, mBackgroundRect, aBuilder)) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
nsCSSRendering::PaintBGParams params =
|
|
nsCSSRendering::PaintBGParams::ForSingleLayer(*StyleFrame()->PresContext(),
|
|
aBounds, mBackgroundRect,
|
|
StyleFrame(), mImageFlags, mLayer,
|
|
CompositionOp::OP_OVER);
|
|
params.bgClipRect = aClipRect;
|
|
ImgDrawResult result = nsCSSRendering::PaintStyleImageLayer(params, *aCtx);
|
|
|
|
if (clip == StyleGeometryBox::Text) {
|
|
ctx->PopGroupAndBlend();
|
|
}
|
|
|
|
nsDisplayBackgroundGeometry::UpdateDrawResult(this, result);
|
|
}
|
|
|
|
void
|
|
nsDisplayBackgroundImage::ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayItemGeometry* aGeometry,
|
|
nsRegion* aInvalidRegion) const
|
|
{
|
|
if (!mBackgroundStyle) {
|
|
return;
|
|
}
|
|
|
|
const nsDisplayBackgroundGeometry* geometry = static_cast<const nsDisplayBackgroundGeometry*>(aGeometry);
|
|
|
|
bool snap;
|
|
nsRect bounds = GetBounds(aBuilder, &snap);
|
|
nsRect positioningArea = GetPositioningArea();
|
|
if (positioningArea.TopLeft() != geometry->mPositioningArea.TopLeft() ||
|
|
(positioningArea.Size() != geometry->mPositioningArea.Size() &&
|
|
RenderingMightDependOnPositioningAreaSizeChange())) {
|
|
// Positioning area changed in a way that could cause everything to change,
|
|
// so invalidate everything (both old and new painting areas).
|
|
aInvalidRegion->Or(bounds, geometry->mBounds);
|
|
return;
|
|
}
|
|
if (!mDestRect.IsEqualInterior(geometry->mDestRect)) {
|
|
// Dest area changed in a way that could cause everything to change,
|
|
// so invalidate everything (both old and new painting areas).
|
|
aInvalidRegion->Or(bounds, geometry->mBounds);
|
|
return;
|
|
}
|
|
if (aBuilder->ShouldSyncDecodeImages()) {
|
|
const nsStyleImage& image = mBackgroundStyle->StyleBackground()->mImage.mLayers[mLayer].mImage;
|
|
if (image.GetType() == eStyleImageType_Image &&
|
|
geometry->ShouldInvalidateToSyncDecodeImages()) {
|
|
aInvalidRegion->Or(*aInvalidRegion, bounds);
|
|
}
|
|
}
|
|
if (!bounds.IsEqualInterior(geometry->mBounds)) {
|
|
// Positioning area is unchanged, so invalidate just the change in the
|
|
// painting area.
|
|
aInvalidRegion->Xor(bounds, geometry->mBounds);
|
|
}
|
|
}
|
|
|
|
nsRect
|
|
nsDisplayBackgroundImage::GetBounds(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
*aSnap = true;
|
|
return mBounds;
|
|
}
|
|
|
|
nsRect
|
|
nsDisplayBackgroundImage::GetBoundsInternal(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrameForBounds)
|
|
{
|
|
// This allows nsDisplayTableBackgroundImage to change the frame used for
|
|
// bounds calculation.
|
|
nsIFrame* frame = aFrameForBounds ? aFrameForBounds : mFrame;
|
|
|
|
nsPresContext* presContext = frame->PresContext();
|
|
|
|
if (!mBackgroundStyle) {
|
|
return nsRect();
|
|
}
|
|
|
|
nsRect clipRect = mBackgroundRect;
|
|
if (frame->IsCanvasFrame()) {
|
|
nsCanvasFrame* canvasFrame = static_cast<nsCanvasFrame*>(frame);
|
|
clipRect = canvasFrame->CanvasArea() + ToReferenceFrame();
|
|
}
|
|
const nsStyleImageLayers::Layer& layer = mBackgroundStyle->StyleBackground()->mImage.mLayers[mLayer];
|
|
return nsCSSRendering::GetBackgroundLayerRect(presContext, frame,
|
|
mBackgroundRect, clipRect, layer,
|
|
aBuilder->GetBackgroundPaintFlags());
|
|
}
|
|
|
|
nsDisplayTableBackgroundImage::nsDisplayTableBackgroundImage(nsDisplayListBuilder* aBuilder,
|
|
const InitData& aData,
|
|
nsIFrame* aCellFrame)
|
|
: nsDisplayBackgroundImage(aBuilder, aData, aCellFrame)
|
|
, mStyleFrame(aCellFrame)
|
|
, mTableType(GetTableTypeFromFrame(mStyleFrame))
|
|
{
|
|
if (aBuilder->IsRetainingDisplayList()) {
|
|
mStyleFrame->AddDisplayItem(this);
|
|
}
|
|
}
|
|
|
|
nsDisplayTableBackgroundImage::~nsDisplayTableBackgroundImage()
|
|
{
|
|
if (mStyleFrame) {
|
|
mStyleFrame->RemoveDisplayItem(this);
|
|
}
|
|
}
|
|
|
|
bool
|
|
nsDisplayTableBackgroundImage::IsInvalid(nsRect& aRect) const
|
|
{
|
|
bool result = mStyleFrame ? mStyleFrame->IsInvalid(aRect) : false;
|
|
aRect += ToReferenceFrame();
|
|
return result;
|
|
}
|
|
|
|
nsDisplayThemedBackground::nsDisplayThemedBackground(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame,
|
|
const nsRect& aBackgroundRect)
|
|
: nsDisplayItem(aBuilder, aFrame)
|
|
, mBackgroundRect(aBackgroundRect)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayThemedBackground);
|
|
}
|
|
|
|
nsDisplayThemedBackground::~nsDisplayThemedBackground()
|
|
{
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
MOZ_COUNT_DTOR(nsDisplayThemedBackground);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
nsDisplayThemedBackground::Init(nsDisplayListBuilder* aBuilder)
|
|
{
|
|
const nsStyleDisplay* disp = StyleFrame()->StyleDisplay();
|
|
mAppearance = disp->mAppearance;
|
|
StyleFrame()->IsThemed(disp, &mThemeTransparency);
|
|
|
|
// Perform necessary RegisterThemeGeometry
|
|
nsITheme* theme = StyleFrame()->PresContext()->GetTheme();
|
|
nsITheme::ThemeGeometryType type =
|
|
theme->ThemeGeometryTypeForWidget(StyleFrame(), disp->mAppearance);
|
|
if (type != nsITheme::eThemeGeometryTypeUnknown) {
|
|
RegisterThemeGeometry(aBuilder, this, StyleFrame(), type);
|
|
}
|
|
|
|
if (disp->mAppearance == NS_THEME_WIN_BORDERLESS_GLASS ||
|
|
disp->mAppearance == NS_THEME_WIN_GLASS) {
|
|
aBuilder->SetGlassDisplayItem(this);
|
|
}
|
|
|
|
mBounds = GetBoundsInternal();
|
|
}
|
|
|
|
void
|
|
nsDisplayThemedBackground::WriteDebugInfo(std::stringstream& aStream)
|
|
{
|
|
aStream << " (themed, appearance:" << (int)mAppearance << ")";
|
|
}
|
|
|
|
void
|
|
nsDisplayThemedBackground::HitTest(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aRect,
|
|
HitTestState* aState,
|
|
nsTArray<nsIFrame*> *aOutFrames)
|
|
{
|
|
// Assume that any point in our background rect is a hit.
|
|
if (mBackgroundRect.Intersects(aRect)) {
|
|
aOutFrames->AppendElement(mFrame);
|
|
}
|
|
}
|
|
|
|
nsRegion
|
|
nsDisplayThemedBackground::GetOpaqueRegion(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
nsRegion result;
|
|
*aSnap = false;
|
|
|
|
if (mThemeTransparency == nsITheme::eOpaque) {
|
|
result = mBackgroundRect;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
Maybe<nscolor>
|
|
nsDisplayThemedBackground::IsUniform(nsDisplayListBuilder* aBuilder) const
|
|
{
|
|
if (mAppearance == NS_THEME_WIN_BORDERLESS_GLASS ||
|
|
mAppearance == NS_THEME_WIN_GLASS) {
|
|
return Some(NS_RGBA(0,0,0,0));
|
|
}
|
|
return Nothing();
|
|
}
|
|
|
|
nsRect
|
|
nsDisplayThemedBackground::GetPositioningArea() const
|
|
{
|
|
return mBackgroundRect;
|
|
}
|
|
|
|
void
|
|
nsDisplayThemedBackground::Paint(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx)
|
|
{
|
|
PaintInternal(aBuilder, aCtx, GetPaintRect(), nullptr);
|
|
}
|
|
|
|
|
|
void
|
|
nsDisplayThemedBackground::PaintInternal(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx, const nsRect& aBounds,
|
|
nsRect* aClipRect)
|
|
{
|
|
// XXXzw this ignores aClipRect.
|
|
nsPresContext* presContext = StyleFrame()->PresContext();
|
|
nsITheme *theme = presContext->GetTheme();
|
|
nsRect drawing(mBackgroundRect);
|
|
theme->GetWidgetOverflow(presContext->DeviceContext(), StyleFrame(), mAppearance,
|
|
&drawing);
|
|
drawing.IntersectRect(drawing, aBounds);
|
|
theme->DrawWidgetBackground(aCtx, StyleFrame(), mAppearance, mBackgroundRect, drawing);
|
|
}
|
|
|
|
|
|
bool
|
|
nsDisplayThemedBackground::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
nsITheme *theme = StyleFrame()->PresContext()->GetTheme();
|
|
return theme->CreateWebRenderCommandsForWidget(aBuilder, aResources, aSc, aManager,
|
|
StyleFrame(), mAppearance, mBackgroundRect);
|
|
}
|
|
|
|
bool
|
|
nsDisplayThemedBackground::IsWindowActive() const
|
|
{
|
|
EventStates docState = mFrame->GetContent()->OwnerDoc()->GetDocumentState();
|
|
return !docState.HasState(NS_DOCUMENT_STATE_WINDOW_INACTIVE);
|
|
}
|
|
|
|
void
|
|
nsDisplayThemedBackground::ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayItemGeometry* aGeometry,
|
|
nsRegion* aInvalidRegion) const
|
|
{
|
|
const nsDisplayThemedBackgroundGeometry* geometry = static_cast<const nsDisplayThemedBackgroundGeometry*>(aGeometry);
|
|
|
|
bool snap;
|
|
nsRect bounds = GetBounds(aBuilder, &snap);
|
|
nsRect positioningArea = GetPositioningArea();
|
|
if (!positioningArea.IsEqualInterior(geometry->mPositioningArea)) {
|
|
// Invalidate everything (both old and new painting areas).
|
|
aInvalidRegion->Or(bounds, geometry->mBounds);
|
|
return;
|
|
}
|
|
if (!bounds.IsEqualInterior(geometry->mBounds)) {
|
|
// Positioning area is unchanged, so invalidate just the change in the
|
|
// painting area.
|
|
aInvalidRegion->Xor(bounds, geometry->mBounds);
|
|
}
|
|
nsITheme* theme = StyleFrame()->PresContext()->GetTheme();
|
|
if (theme->WidgetAppearanceDependsOnWindowFocus(mAppearance) &&
|
|
IsWindowActive() != geometry->mWindowIsActive) {
|
|
aInvalidRegion->Or(*aInvalidRegion, bounds);
|
|
}
|
|
}
|
|
|
|
nsRect
|
|
nsDisplayThemedBackground::GetBounds(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
*aSnap = true;
|
|
return mBounds;
|
|
}
|
|
|
|
nsRect
|
|
nsDisplayThemedBackground::GetBoundsInternal() {
|
|
nsPresContext* presContext = mFrame->PresContext();
|
|
|
|
nsRect r = mBackgroundRect - ToReferenceFrame();
|
|
presContext->GetTheme()->
|
|
GetWidgetOverflow(presContext->DeviceContext(), mFrame,
|
|
mFrame->StyleDisplay()->mAppearance, &r);
|
|
return r + ToReferenceFrame();
|
|
}
|
|
|
|
void
|
|
nsDisplayImageContainer::ConfigureLayer(ImageLayer* aLayer,
|
|
const ContainerLayerParameters& aParameters)
|
|
{
|
|
aLayer->SetSamplingFilter(nsLayoutUtils::GetSamplingFilterForFrame(mFrame));
|
|
|
|
nsCOMPtr<imgIContainer> image = GetImage();
|
|
MOZ_ASSERT(image);
|
|
int32_t imageWidth;
|
|
int32_t imageHeight;
|
|
image->GetWidth(&imageWidth);
|
|
image->GetHeight(&imageHeight);
|
|
NS_ASSERTION(imageWidth != 0 && imageHeight != 0, "Invalid image size!");
|
|
|
|
if (imageWidth > 0 && imageHeight > 0) {
|
|
// We're actually using the ImageContainer. Let our frame know that it
|
|
// should consider itself to have painted successfully.
|
|
UpdateDrawResult(ImgDrawResult::SUCCESS);
|
|
}
|
|
|
|
// XXX(seth): Right now we ignore aParameters.Scale() and
|
|
// aParameters.Offset(), because FrameLayerBuilder already applies
|
|
// aParameters.Scale() via the layer's post-transform, and
|
|
// aParameters.Offset() is always zero.
|
|
MOZ_ASSERT(aParameters.Offset() == LayerIntPoint(0,0));
|
|
|
|
// It's possible (for example, due to downscale-during-decode) that the
|
|
// ImageContainer this ImageLayer is holding has a different size from the
|
|
// intrinsic size of the image. For this reason we compute the transform using
|
|
// the ImageContainer's size rather than the image's intrinsic size.
|
|
// XXX(seth): In reality, since the size of the ImageContainer may change
|
|
// asynchronously, this is not enough. Bug 1183378 will provide a more
|
|
// complete fix, but this solution is safe in more cases than simply relying
|
|
// on the intrinsic size.
|
|
IntSize containerSize = aLayer->GetContainer()
|
|
? aLayer->GetContainer()->GetCurrentSize()
|
|
: IntSize(imageWidth, imageHeight);
|
|
|
|
const int32_t factor = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
const LayoutDeviceRect destRect(
|
|
LayoutDeviceIntRect::FromAppUnitsToNearest(GetDestRect(), factor));
|
|
|
|
const LayoutDevicePoint p = destRect.TopLeft();
|
|
Matrix transform = Matrix::Translation(p.x, p.y);
|
|
transform.PreScale(destRect.width / containerSize.width,
|
|
destRect.height / containerSize.height);
|
|
aLayer->SetBaseTransform(gfx::Matrix4x4::From2D(transform));
|
|
}
|
|
|
|
already_AddRefed<ImageContainer>
|
|
nsDisplayImageContainer::GetContainer(LayerManager* aManager,
|
|
nsDisplayListBuilder *aBuilder)
|
|
{
|
|
nsCOMPtr<imgIContainer> image = GetImage();
|
|
if (!image) {
|
|
MOZ_ASSERT_UNREACHABLE("Must call CanOptimizeToImage() and get true "
|
|
"before calling GetContainer()");
|
|
return nullptr;
|
|
}
|
|
|
|
uint32_t flags = imgIContainer::FLAG_ASYNC_NOTIFY;
|
|
if (aBuilder->ShouldSyncDecodeImages()) {
|
|
flags |= imgIContainer::FLAG_SYNC_DECODE;
|
|
}
|
|
|
|
RefPtr<ImageContainer> container = image->GetImageContainer(aManager, flags);
|
|
if (!container || !container->HasCurrentImage()) {
|
|
return nullptr;
|
|
}
|
|
|
|
return container.forget();
|
|
}
|
|
|
|
bool
|
|
nsDisplayImageContainer::CanOptimizeToImageLayer(LayerManager* aManager,
|
|
nsDisplayListBuilder* aBuilder)
|
|
{
|
|
uint32_t flags = aBuilder->ShouldSyncDecodeImages()
|
|
? imgIContainer::FLAG_SYNC_DECODE
|
|
: imgIContainer::FLAG_NONE;
|
|
|
|
nsCOMPtr<imgIContainer> image = GetImage();
|
|
if (!image) {
|
|
return false;
|
|
}
|
|
|
|
if (!image->IsImageContainerAvailable(aManager, flags)) {
|
|
return false;
|
|
}
|
|
|
|
int32_t imageWidth;
|
|
int32_t imageHeight;
|
|
image->GetWidth(&imageWidth);
|
|
image->GetHeight(&imageHeight);
|
|
|
|
if (imageWidth == 0 || imageHeight == 0) {
|
|
NS_ASSERTION(false, "invalid image size");
|
|
return false;
|
|
}
|
|
|
|
const int32_t factor = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
const LayoutDeviceRect destRect(
|
|
LayoutDeviceIntRect::FromAppUnitsToNearest(GetDestRect(), factor));
|
|
|
|
// Calculate the scaling factor for the frame.
|
|
const gfxSize scale = gfxSize(destRect.width / imageWidth,
|
|
destRect.height / imageHeight);
|
|
|
|
if (scale.width < 0.34 || scale.height < 0.34) {
|
|
// This would look awful as long as we can't use high-quality downscaling
|
|
// for image layers (bug 803703), so don't turn this into an image layer.
|
|
return false;
|
|
}
|
|
|
|
if (mFrame->IsImageFrame()) {
|
|
// Image layer doesn't support draw focus ring for image map.
|
|
nsImageFrame* f = static_cast<nsImageFrame*>(mFrame);
|
|
if (f->HasImageMap()) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
nsDisplayBackgroundColor::ApplyOpacity(nsDisplayListBuilder* aBuilder,
|
|
float aOpacity,
|
|
const DisplayItemClipChain* aClip)
|
|
{
|
|
NS_ASSERTION(CanApplyOpacity(), "ApplyOpacity should be allowed");
|
|
mColor.a = mColor.a * aOpacity;
|
|
IntersectClip(aBuilder, aClip, false);
|
|
}
|
|
|
|
bool
|
|
nsDisplayBackgroundColor::CanApplyOpacity() const
|
|
{
|
|
return true;
|
|
}
|
|
|
|
LayerState
|
|
nsDisplayBackgroundColor::GetLayerState(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters)
|
|
{
|
|
StyleGeometryBox clip = mBackgroundStyle->StyleBackground()->mImage.mLayers[0].mClip;
|
|
if (ForceActiveLayers() && clip != StyleGeometryBox::Text) {
|
|
return LAYER_ACTIVE;
|
|
}
|
|
return LAYER_NONE;
|
|
}
|
|
|
|
already_AddRefed<Layer>
|
|
nsDisplayBackgroundColor::BuildLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aContainerParameters)
|
|
{
|
|
if (mColor == Color()) {
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<ColorLayer> layer = static_cast<ColorLayer*>
|
|
(aManager->GetLayerBuilder()->GetLeafLayerFor(aBuilder, this));
|
|
if (!layer) {
|
|
layer = aManager->CreateColorLayer();
|
|
if (!layer)
|
|
return nullptr;
|
|
}
|
|
layer->SetColor(mColor);
|
|
|
|
int32_t appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
layer->SetBounds(mBackgroundRect.ToNearestPixels(appUnitsPerDevPixel));
|
|
layer->SetBaseTransform(gfx::Matrix4x4::Translation(aContainerParameters.mOffset.x,
|
|
aContainerParameters.mOffset.y, 0));
|
|
|
|
return layer.forget();
|
|
}
|
|
|
|
bool
|
|
nsDisplayBackgroundColor::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
if (mColor == Color()) {
|
|
return true;
|
|
}
|
|
|
|
StyleGeometryBox clip = mBackgroundStyle->StyleBackground()->mImage.mLayers[0].mClip;
|
|
if (clip == StyleGeometryBox::Text) {
|
|
return false;
|
|
}
|
|
|
|
LayoutDeviceRect bounds = LayoutDeviceRect::FromAppUnits(
|
|
mBackgroundRect, mFrame->PresContext()->AppUnitsPerDevPixel());
|
|
wr::LayoutRect roundedRect = wr::ToRoundedLayoutRect(bounds);
|
|
|
|
aBuilder.PushRect(roundedRect,
|
|
roundedRect,
|
|
!BackfaceIsHidden(),
|
|
wr::ToColorF(ToDeviceColor(mColor)));
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
nsDisplayBackgroundColor::Paint(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx)
|
|
{
|
|
if (mColor == Color()) {
|
|
return;
|
|
}
|
|
|
|
#if 0
|
|
// See https://bugzilla.mozilla.org/show_bug.cgi?id=1148418#c21 for why this
|
|
// results in a precision induced rounding issue that makes the rect one
|
|
// pixel shorter in rare cases. Disabled in favor of the old code for now.
|
|
// Note that the pref layout.css.devPixelsPerPx needs to be set to 1 to
|
|
// reproduce the bug.
|
|
//
|
|
// TODO:
|
|
// This new path does not include support for background-clip:text; need to
|
|
// be fixed if/when we switch to this new code path.
|
|
|
|
DrawTarget& aDrawTarget = *aCtx->GetDrawTarget();
|
|
|
|
Rect rect = NSRectToSnappedRect(mBackgroundRect,
|
|
mFrame->PresContext()->AppUnitsPerDevPixel(),
|
|
aDrawTarget);
|
|
ColorPattern color(ToDeviceColor(mColor));
|
|
aDrawTarget.FillRect(rect, color);
|
|
#else
|
|
gfxContext* ctx = aCtx;
|
|
gfxRect bounds =
|
|
nsLayoutUtils::RectToGfxRect(mBackgroundRect,
|
|
mFrame->PresContext()->AppUnitsPerDevPixel());
|
|
|
|
StyleGeometryBox clip = mBackgroundStyle->StyleBackground()->mImage.mLayers[0].mClip;
|
|
if (clip == StyleGeometryBox::Text) {
|
|
if (!GenerateAndPushTextMask(mFrame, aCtx, mBackgroundRect, aBuilder)) {
|
|
return;
|
|
}
|
|
|
|
ctx->SetColor(mColor);
|
|
ctx->NewPath();
|
|
ctx->Rectangle(bounds, true);
|
|
ctx->Fill();
|
|
ctx->PopGroupAndBlend();
|
|
return;
|
|
}
|
|
|
|
ctx->SetColor(mColor);
|
|
ctx->NewPath();
|
|
ctx->Rectangle(bounds, true);
|
|
ctx->Fill();
|
|
#endif
|
|
}
|
|
|
|
nsRegion
|
|
nsDisplayBackgroundColor::GetOpaqueRegion(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
*aSnap = false;
|
|
|
|
if (mColor.a != 1) {
|
|
return nsRegion();
|
|
}
|
|
|
|
if (!mBackgroundStyle)
|
|
return nsRegion();
|
|
|
|
|
|
const nsStyleImageLayers::Layer& bottomLayer = mBackgroundStyle->StyleBackground()->BottomLayer();
|
|
if (bottomLayer.mClip == StyleGeometryBox::Text) {
|
|
return nsRegion();
|
|
}
|
|
|
|
*aSnap = true;
|
|
return nsDisplayBackgroundImage::GetInsideClipRegion(this, bottomLayer.mClip,
|
|
mBackgroundRect, mBackgroundRect);
|
|
}
|
|
|
|
Maybe<nscolor>
|
|
nsDisplayBackgroundColor::IsUniform(nsDisplayListBuilder* aBuilder) const
|
|
{
|
|
return Some(mColor.ToABGR());
|
|
}
|
|
|
|
void
|
|
nsDisplayBackgroundColor::HitTest(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aRect,
|
|
HitTestState* aState,
|
|
nsTArray<nsIFrame*> *aOutFrames)
|
|
{
|
|
if (!RoundedBorderIntersectsRect(mFrame, ToReferenceFrame(), aRect)) {
|
|
// aRect doesn't intersect our border-radius curve.
|
|
return;
|
|
}
|
|
|
|
aOutFrames->AppendElement(mFrame);
|
|
}
|
|
|
|
void
|
|
nsDisplayBackgroundColor::WriteDebugInfo(std::stringstream& aStream)
|
|
{
|
|
aStream << " (rgba " << mColor.r << "," << mColor.g << ","
|
|
<< mColor.b << "," << mColor.a << ")";
|
|
}
|
|
|
|
already_AddRefed<Layer>
|
|
nsDisplayClearBackground::BuildLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters)
|
|
{
|
|
RefPtr<ColorLayer> layer = static_cast<ColorLayer*>
|
|
(aManager->GetLayerBuilder()->GetLeafLayerFor(aBuilder, this));
|
|
if (!layer) {
|
|
layer = aManager->CreateColorLayer();
|
|
if (!layer)
|
|
return nullptr;
|
|
}
|
|
layer->SetColor(Color());
|
|
layer->SetMixBlendMode(gfx::CompositionOp::OP_SOURCE);
|
|
|
|
bool snap;
|
|
nsRect bounds = GetBounds(aBuilder, &snap);
|
|
int32_t appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
layer->SetBounds(bounds.ToNearestPixels(appUnitsPerDevPixel)); // XXX Do we need to respect the parent layer's scale here?
|
|
|
|
return layer.forget();
|
|
}
|
|
|
|
bool
|
|
nsDisplayClearBackground::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
LayoutDeviceRect bounds = LayoutDeviceRect::FromAppUnits(
|
|
nsRect(ToReferenceFrame(), mFrame->GetSize()),
|
|
mFrame->PresContext()->AppUnitsPerDevPixel());
|
|
|
|
aBuilder.PushClearRect(wr::ToRoundedLayoutRect(bounds));
|
|
|
|
return true;
|
|
}
|
|
|
|
nsRect
|
|
nsDisplayOutline::GetBounds(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
*aSnap = false;
|
|
return mFrame->GetVisualOverflowRectRelativeToSelf() + ToReferenceFrame();
|
|
}
|
|
|
|
void
|
|
nsDisplayOutline::Paint(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx) {
|
|
// TODO join outlines together
|
|
MOZ_ASSERT(mFrame->StyleOutline()->ShouldPaintOutline(),
|
|
"Should have not created a nsDisplayOutline!");
|
|
|
|
nsPoint offset = ToReferenceFrame();
|
|
nsCSSRendering::PaintOutline(mFrame->PresContext(), *aCtx, mFrame,
|
|
GetPaintRect(),
|
|
nsRect(offset, mFrame->GetSize()),
|
|
mFrame->Style());
|
|
}
|
|
|
|
bool
|
|
nsDisplayOutline::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
ContainerLayerParameters parameter;
|
|
|
|
uint8_t outlineStyle = mFrame->Style()->StyleOutline()->mOutlineStyle;
|
|
if (outlineStyle == NS_STYLE_BORDER_STYLE_AUTO && nsLayoutUtils::IsOutlineStyleAutoEnabled()) {
|
|
nsITheme* theme = mFrame->PresContext()->GetTheme();
|
|
if (theme && theme->ThemeSupportsWidget(mFrame->PresContext(), mFrame,
|
|
NS_THEME_FOCUS_OUTLINE)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
nsPoint offset = ToReferenceFrame();
|
|
|
|
mozilla::Maybe<nsCSSBorderRenderer> borderRenderer =
|
|
nsCSSRendering::CreateBorderRendererForOutline(mFrame->PresContext(),
|
|
nullptr, mFrame,
|
|
GetPaintRect(),
|
|
nsRect(offset, mFrame->GetSize()),
|
|
mFrame->Style());
|
|
|
|
if (!borderRenderer) {
|
|
// No border renderer means "there is no outline".
|
|
// Paint nothing and return success.
|
|
return true;
|
|
}
|
|
|
|
borderRenderer->CreateWebRenderCommands(this, aBuilder, aResources, aSc);
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
nsDisplayOutline::IsInvisibleInRect(const nsRect& aRect) const
|
|
{
|
|
const nsStyleOutline* outline = mFrame->StyleOutline();
|
|
nsRect borderBox(ToReferenceFrame(), mFrame->GetSize());
|
|
if (borderBox.Contains(aRect) &&
|
|
!nsLayoutUtils::HasNonZeroCorner(outline->mOutlineRadius)) {
|
|
if (outline->mOutlineOffset >= 0) {
|
|
// aRect is entirely inside the border-rect, and the outline isn't
|
|
// rendered inside the border-rect, so the outline is not visible.
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void
|
|
nsDisplayEventReceiver::HitTest(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aRect,
|
|
HitTestState* aState,
|
|
nsTArray<nsIFrame*> *aOutFrames)
|
|
{
|
|
if (!RoundedBorderIntersectsRect(mFrame, ToReferenceFrame(), aRect)) {
|
|
// aRect doesn't intersect our border-radius curve.
|
|
return;
|
|
}
|
|
|
|
aOutFrames->AppendElement(mFrame);
|
|
}
|
|
|
|
bool
|
|
nsDisplayEventReceiver::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
// This display item should never be getting created when building a display
|
|
// list for WebRender consumption, so this function should never get called.
|
|
MOZ_ASSERT(false);
|
|
return true;
|
|
}
|
|
|
|
nsDisplayCompositorHitTestInfo::nsDisplayCompositorHitTestInfo(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame,
|
|
mozilla::gfx::CompositorHitTestInfo aHitTestInfo,
|
|
uint32_t aIndex,
|
|
const mozilla::Maybe<nsRect>& aArea)
|
|
: nsDisplayEventReceiver(aBuilder, aFrame)
|
|
, mHitTestInfo(aHitTestInfo)
|
|
, mIndex(aIndex)
|
|
, mAppUnitsPerDevPixel(mFrame->PresContext()->AppUnitsPerDevPixel())
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayCompositorHitTestInfo);
|
|
// We should never even create this display item if we're not building
|
|
// compositor hit-test info or if the computed hit info indicated the
|
|
// frame is invisible to hit-testing
|
|
MOZ_ASSERT(aBuilder->BuildCompositorHitTestInfo());
|
|
MOZ_ASSERT(mHitTestInfo != mozilla::gfx::CompositorHitTestInfo::eInvisibleToHitTest);
|
|
|
|
if (aBuilder->GetCurrentScrollbarDirection().isSome()) {
|
|
// In the case of scrollbar frames, we use the scrollbar's target scrollframe
|
|
// instead of the scrollframe with which the scrollbar actually moves.
|
|
MOZ_ASSERT(mHitTestInfo & CompositorHitTestInfo::eScrollbar);
|
|
mScrollTarget = Some(aBuilder->GetCurrentScrollbarTarget());
|
|
}
|
|
|
|
if (aArea.isSome()) {
|
|
mArea = *aArea;
|
|
} else {
|
|
mArea = GetFrameArea(aBuilder, aFrame);
|
|
}
|
|
}
|
|
|
|
bool
|
|
nsDisplayCompositorHitTestInfo::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
if (mArea.IsEmpty()) {
|
|
return true;
|
|
}
|
|
|
|
// XXX: eventually this scrollId computation and the SetHitTestInfo
|
|
// call will get moved out into the WR display item iteration code so that
|
|
// we don't need to do it as often, and so that we can do it for other
|
|
// display item types as well (reducing the need for as many instances of
|
|
// this display item).
|
|
FrameMetrics::ViewID scrollId = mScrollTarget.valueOrFrom(
|
|
[&]() -> FrameMetrics::ViewID {
|
|
const ActiveScrolledRoot* asr = GetActiveScrolledRoot();
|
|
Maybe<FrameMetrics::ViewID> fixedTarget =
|
|
aBuilder.GetContainingFixedPosScrollTarget(asr);
|
|
if (fixedTarget) {
|
|
return *fixedTarget;
|
|
}
|
|
if (asr) {
|
|
return asr->GetViewId();
|
|
}
|
|
return FrameMetrics::NULL_SCROLL_ID;
|
|
});
|
|
|
|
// Insert a transparent rectangle with the hit-test info
|
|
aBuilder.SetHitTestInfo(scrollId, mHitTestInfo);
|
|
|
|
const LayoutDeviceRect devRect =
|
|
LayoutDeviceRect::FromAppUnits(mArea, mAppUnitsPerDevPixel);
|
|
|
|
const wr::LayoutRect rect = wr::ToRoundedLayoutRect(devRect);
|
|
|
|
aBuilder.PushRect(rect, rect, !BackfaceIsHidden(), wr::ToColorF(gfx::Color()));
|
|
aBuilder.ClearHitTestInfo();
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
nsDisplayCompositorHitTestInfo::WriteDebugInfo(std::stringstream& aStream)
|
|
{
|
|
aStream << nsPrintfCString(" (hitTestInfo 0x%x)", (int)mHitTestInfo).get();
|
|
AppendToString(aStream, mArea, " hitTestArea");
|
|
}
|
|
|
|
uint32_t
|
|
nsDisplayCompositorHitTestInfo::GetPerFrameKey() const
|
|
{
|
|
return (mIndex << TYPE_BITS) | nsDisplayItem::GetPerFrameKey();
|
|
}
|
|
|
|
int32_t
|
|
nsDisplayCompositorHitTestInfo::ZIndex() const
|
|
{
|
|
return mOverrideZIndex ? *mOverrideZIndex : nsDisplayItem::ZIndex();
|
|
}
|
|
|
|
void
|
|
nsDisplayCompositorHitTestInfo::SetOverrideZIndex(int32_t aZIndex)
|
|
{
|
|
mOverrideZIndex = Some(aZIndex);
|
|
}
|
|
|
|
nsDisplayCaret::nsDisplayCaret(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aCaretFrame)
|
|
: nsDisplayItem(aBuilder, aCaretFrame)
|
|
, mCaret(aBuilder->GetCaret())
|
|
, mBounds(aBuilder->GetCaretRect() + ToReferenceFrame())
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayCaret);
|
|
}
|
|
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
nsDisplayCaret::~nsDisplayCaret()
|
|
{
|
|
MOZ_COUNT_DTOR(nsDisplayCaret);
|
|
}
|
|
#endif
|
|
|
|
nsRect
|
|
nsDisplayCaret::GetBounds(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
*aSnap = true;
|
|
// The caret returns a rect in the coordinates of mFrame.
|
|
return mBounds;
|
|
}
|
|
|
|
void
|
|
nsDisplayCaret::Paint(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx) {
|
|
// Note: Because we exist, we know that the caret is visible, so we don't
|
|
// need to check for the caret's visibility.
|
|
mCaret->PaintCaret(*aCtx->GetDrawTarget(), mFrame, ToReferenceFrame());
|
|
}
|
|
|
|
bool
|
|
nsDisplayCaret::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
using namespace mozilla::layers;
|
|
int32_t contentOffset;
|
|
nsIFrame* frame = mCaret->GetFrame(&contentOffset);
|
|
if (!frame) {
|
|
return true;
|
|
}
|
|
NS_ASSERTION(frame == mFrame, "We're referring different frame");
|
|
|
|
int32_t appUnitsPerDevPixel = frame->PresContext()->AppUnitsPerDevPixel();
|
|
|
|
nsRect caretRect;
|
|
nsRect hookRect;
|
|
mCaret->ComputeCaretRects(frame, contentOffset, &caretRect, &hookRect);
|
|
|
|
gfx::Color color = ToDeviceColor(frame->GetCaretColorAt(contentOffset));
|
|
LayoutDeviceRect devCaretRect = LayoutDeviceRect::FromAppUnits(
|
|
caretRect + ToReferenceFrame(), appUnitsPerDevPixel);
|
|
LayoutDeviceRect devHookRect = LayoutDeviceRect::FromAppUnits(
|
|
hookRect + ToReferenceFrame(), appUnitsPerDevPixel);
|
|
|
|
wr::LayoutRect caret = wr::ToRoundedLayoutRect(devCaretRect);
|
|
wr::LayoutRect hook = wr::ToRoundedLayoutRect(devHookRect);
|
|
|
|
// Note, WR will pixel snap anything that is layout aligned.
|
|
aBuilder.PushRect(caret,
|
|
caret,
|
|
!BackfaceIsHidden(),
|
|
wr::ToColorF(color));
|
|
|
|
if (!devHookRect.IsEmpty()) {
|
|
aBuilder.PushRect(hook,
|
|
hook,
|
|
!BackfaceIsHidden(),
|
|
wr::ToColorF(color));
|
|
}
|
|
return true;
|
|
}
|
|
|
|
nsDisplayBorder::nsDisplayBorder(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame)
|
|
: nsDisplayItem(aBuilder, aFrame)
|
|
, mBorderIsEmpty(false)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayBorder);
|
|
|
|
mBounds = CalculateBounds<nsRect>(*mFrame->StyleBorder());
|
|
}
|
|
|
|
bool
|
|
nsDisplayBorder::IsInvisibleInRect(const nsRect& aRect) const
|
|
{
|
|
nsRect paddingRect = mFrame->GetPaddingRect() - mFrame->GetPosition() +
|
|
ToReferenceFrame();
|
|
const nsStyleBorder *styleBorder;
|
|
if (paddingRect.Contains(aRect) &&
|
|
!(styleBorder = mFrame->StyleBorder())->IsBorderImageLoaded() &&
|
|
!nsLayoutUtils::HasNonZeroCorner(styleBorder->mBorderRadius)) {
|
|
// aRect is entirely inside the content rect, and no part
|
|
// of the border is rendered inside the content rect, so we are not
|
|
// visible
|
|
// Skip this if there's a border-image (which draws a background
|
|
// too) or if there is a border-radius (which makes the border draw
|
|
// further in).
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
nsDisplayItemGeometry*
|
|
nsDisplayBorder::AllocateGeometry(nsDisplayListBuilder* aBuilder)
|
|
{
|
|
return new nsDisplayBorderGeometry(this, aBuilder);
|
|
}
|
|
|
|
void
|
|
nsDisplayBorder::ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayItemGeometry* aGeometry,
|
|
nsRegion* aInvalidRegion) const
|
|
{
|
|
const nsDisplayBorderGeometry* geometry = static_cast<const nsDisplayBorderGeometry*>(aGeometry);
|
|
bool snap;
|
|
|
|
if (!geometry->mBounds.IsEqualInterior(GetBounds(aBuilder, &snap))) {
|
|
// We can probably get away with only invalidating the difference
|
|
// between the border and padding rects, but the XUL ui at least
|
|
// is apparently painting a background with this?
|
|
aInvalidRegion->Or(GetBounds(aBuilder, &snap), geometry->mBounds);
|
|
}
|
|
|
|
if (aBuilder->ShouldSyncDecodeImages() &&
|
|
geometry->ShouldInvalidateToSyncDecodeImages()) {
|
|
aInvalidRegion->Or(*aInvalidRegion, GetBounds(aBuilder, &snap));
|
|
}
|
|
}
|
|
|
|
LayerState
|
|
nsDisplayBorder::GetLayerState(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters)
|
|
{
|
|
if (!ShouldUseAdvancedLayer(aManager, gfxPrefs::LayersAllowBorderLayers)) {
|
|
return LAYER_NONE;
|
|
}
|
|
|
|
mBorderIsEmpty = false;
|
|
nsPoint offset = ToReferenceFrame();
|
|
Maybe<nsCSSBorderRenderer> br =
|
|
nsCSSRendering::CreateBorderRenderer(mFrame->PresContext(),
|
|
nullptr,
|
|
mFrame,
|
|
nsRect(),
|
|
nsRect(offset, mFrame->GetSize()),
|
|
mFrame->Style(),
|
|
&mBorderIsEmpty,
|
|
mFrame->GetSkipSides());
|
|
|
|
mBorderRenderer = Nothing();
|
|
mBorderImageRenderer = Nothing();
|
|
if (!br) {
|
|
if (mBorderIsEmpty) {
|
|
return LAYER_ACTIVE;
|
|
}
|
|
return LAYER_NONE;
|
|
}
|
|
|
|
if (!br->AllBordersSolid()) {
|
|
return LAYER_NONE;
|
|
}
|
|
|
|
// We don't support this yet as we don't copy the values to
|
|
// the layer, and BasicBorderLayer doesn't support it yet.
|
|
if (!br->mNoBorderRadius) {
|
|
return LAYER_NONE;
|
|
}
|
|
|
|
// We copy these values correctly to the layer, but BasicBorderLayer
|
|
// won't render them
|
|
if (!br->AreBorderSideFinalStylesSame(eSideBitsAll) ||
|
|
!br->AllBordersSameWidth()) {
|
|
return LAYER_NONE;
|
|
}
|
|
|
|
NS_FOR_CSS_SIDES(i) {
|
|
if (br->mBorderStyles[i] == NS_STYLE_BORDER_STYLE_SOLID) {
|
|
mColors[i] = ToDeviceColor(br->mBorderColors[i]);
|
|
mWidths[i] = br->mBorderWidths[i];
|
|
mBorderStyles[i] = br->mBorderStyles[i];
|
|
} else {
|
|
mWidths[i] = 0;
|
|
}
|
|
}
|
|
NS_FOR_CSS_FULL_CORNERS(corner) {
|
|
mCorners[corner] = LayerSize(br->mBorderRadii[corner].width, br->mBorderRadii[corner].height);
|
|
}
|
|
|
|
mRect = ViewAs<LayerPixel>(br->mOuterRect);
|
|
return LAYER_ACTIVE;
|
|
}
|
|
|
|
already_AddRefed<Layer>
|
|
nsDisplayBorder::BuildLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aContainerParameters)
|
|
{
|
|
if (mBorderIsEmpty) {
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<BorderLayer> layer = static_cast<BorderLayer*>
|
|
(aManager->GetLayerBuilder()->GetLeafLayerFor(aBuilder, this));
|
|
if (!layer) {
|
|
layer = aManager->CreateBorderLayer();
|
|
if (!layer)
|
|
return nullptr;
|
|
}
|
|
layer->SetRect(mRect);
|
|
layer->SetCornerRadii(mCorners);
|
|
layer->SetColors(mColors);
|
|
layer->SetWidths(mWidths);
|
|
layer->SetStyles(mBorderStyles);
|
|
layer->SetBaseTransform(gfx::Matrix4x4::Translation(aContainerParameters.mOffset.x,
|
|
aContainerParameters.mOffset.y, 0));
|
|
return layer.forget();
|
|
}
|
|
|
|
bool
|
|
nsDisplayBorder::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
nsRect rect = nsRect(ToReferenceFrame(), mFrame->GetSize());
|
|
|
|
return nsCSSRendering::CreateWebRenderCommandsForBorder(this,
|
|
mFrame,
|
|
rect,
|
|
aBuilder,
|
|
aResources,
|
|
aSc,
|
|
aManager,
|
|
aDisplayListBuilder);
|
|
};
|
|
|
|
void
|
|
nsDisplayBorder::CreateBorderImageWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
MOZ_ASSERT(mBorderImageRenderer);
|
|
if (!mBorderImageRenderer->mImageRenderer.IsReady()) {
|
|
return;
|
|
}
|
|
|
|
float widths[4];
|
|
float slice[4];
|
|
float outset[4];
|
|
const int32_t appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
NS_FOR_CSS_SIDES(i) {
|
|
slice[i] = (float)(mBorderImageRenderer->mSlice.Side(i)) / appUnitsPerDevPixel;
|
|
widths[i] = (float)(mBorderImageRenderer->mWidths.Side(i)) / appUnitsPerDevPixel;
|
|
outset[i] = (float)(mBorderImageRenderer->mImageOutset.Side(i)) / appUnitsPerDevPixel;
|
|
}
|
|
|
|
LayoutDeviceRect destRect = LayoutDeviceRect::FromAppUnits(
|
|
mBorderImageRenderer->mArea, appUnitsPerDevPixel);
|
|
wr::LayoutRect dest = wr::ToRoundedLayoutRect(destRect);
|
|
|
|
wr::LayoutRect clip = dest;
|
|
if (!mBorderImageRenderer->mClip.IsEmpty()) {
|
|
LayoutDeviceRect clipRect = LayoutDeviceRect::FromAppUnits(
|
|
mBorderImageRenderer->mClip, appUnitsPerDevPixel);
|
|
clip = wr::ToRoundedLayoutRect(clipRect);
|
|
}
|
|
|
|
switch (mBorderImageRenderer->mImageRenderer.GetType()) {
|
|
case eStyleImageType_Image:
|
|
{
|
|
uint32_t flags = imgIContainer::FLAG_ASYNC_NOTIFY;
|
|
if (aDisplayListBuilder->IsPaintingToWindow()) {
|
|
flags |= imgIContainer::FLAG_HIGH_QUALITY_SCALING;
|
|
}
|
|
if (aDisplayListBuilder->ShouldSyncDecodeImages()) {
|
|
flags |= imgIContainer::FLAG_SYNC_DECODE;
|
|
}
|
|
|
|
RefPtr<imgIContainer> img = mBorderImageRenderer->mImageRenderer.GetImage();
|
|
Maybe<SVGImageContext> svgContext;
|
|
gfx::IntSize decodeSize =
|
|
nsLayoutUtils::ComputeImageContainerDrawingParameters(img, mFrame, destRect,
|
|
aSc, flags, svgContext);
|
|
RefPtr<layers::ImageContainer> container =
|
|
img->GetImageContainerAtSize(aManager, decodeSize, svgContext, flags);
|
|
if (!container) {
|
|
return;
|
|
}
|
|
|
|
gfx::IntSize size;
|
|
Maybe<wr::ImageKey> key = aManager->CommandBuilder().CreateImageKey(this, container, aBuilder,
|
|
aResources, aSc, size, Nothing());
|
|
if (key.isNothing()) {
|
|
return;
|
|
}
|
|
|
|
aBuilder.PushBorderImage(dest,
|
|
clip,
|
|
!BackfaceIsHidden(),
|
|
wr::ToBorderWidths(widths[0], widths[1], widths[2], widths[3]),
|
|
key.value(),
|
|
(float)(mBorderImageRenderer->mImageSize.width) / appUnitsPerDevPixel,
|
|
(float)(mBorderImageRenderer->mImageSize.height) / appUnitsPerDevPixel,
|
|
wr::ToSideOffsets2D_u32(slice[0], slice[1], slice[2], slice[3]),
|
|
wr::ToSideOffsets2D_f32(outset[0], outset[1], outset[2], outset[3]),
|
|
wr::ToRepeatMode(mBorderImageRenderer->mRepeatModeHorizontal),
|
|
wr::ToRepeatMode(mBorderImageRenderer->mRepeatModeVertical));
|
|
break;
|
|
}
|
|
case eStyleImageType_Gradient:
|
|
{
|
|
RefPtr<nsStyleGradient> gradientData = mBorderImageRenderer->mImageRenderer.GetGradientData();
|
|
nsCSSGradientRenderer renderer =
|
|
nsCSSGradientRenderer::Create(mFrame->PresContext(), gradientData,
|
|
mBorderImageRenderer->mImageSize);
|
|
|
|
wr::ExtendMode extendMode;
|
|
nsTArray<wr::GradientStop> stops;
|
|
LayoutDevicePoint lineStart;
|
|
LayoutDevicePoint lineEnd;
|
|
LayoutDeviceSize gradientRadius;
|
|
renderer.BuildWebRenderParameters(1.0, extendMode, stops, lineStart, lineEnd, gradientRadius);
|
|
|
|
if (gradientData->mShape == NS_STYLE_GRADIENT_SHAPE_LINEAR) {
|
|
LayoutDevicePoint startPoint = LayoutDevicePoint(dest.origin.x, dest.origin.y) + lineStart;
|
|
LayoutDevicePoint endPoint = LayoutDevicePoint(dest.origin.x, dest.origin.y) + lineEnd;
|
|
|
|
aBuilder.PushBorderGradient(dest,
|
|
clip,
|
|
!BackfaceIsHidden(),
|
|
wr::ToBorderWidths(widths[0], widths[1], widths[2], widths[3]),
|
|
wr::ToLayoutPoint(startPoint),
|
|
wr::ToLayoutPoint(endPoint),
|
|
stops,
|
|
extendMode,
|
|
wr::ToSideOffsets2D_f32(outset[0], outset[1], outset[2], outset[3]));
|
|
} else {
|
|
aBuilder.PushBorderRadialGradient(dest,
|
|
clip,
|
|
!BackfaceIsHidden(),
|
|
wr::ToBorderWidths(widths[0], widths[1], widths[2], widths[3]),
|
|
wr::ToLayoutPoint(lineStart),
|
|
wr::ToLayoutSize(gradientRadius),
|
|
stops,
|
|
extendMode,
|
|
wr::ToSideOffsets2D_f32(outset[0], outset[1], outset[2], outset[3]));
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("Unsupport border image type");
|
|
}
|
|
}
|
|
|
|
void
|
|
nsDisplayBorder::Paint(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx) {
|
|
nsPoint offset = ToReferenceFrame();
|
|
|
|
PaintBorderFlags flags = aBuilder->ShouldSyncDecodeImages()
|
|
? PaintBorderFlags::SYNC_DECODE_IMAGES
|
|
: PaintBorderFlags();
|
|
|
|
ImgDrawResult result =
|
|
nsCSSRendering::PaintBorder(mFrame->PresContext(), *aCtx, mFrame,
|
|
GetPaintRect(),
|
|
nsRect(offset, mFrame->GetSize()),
|
|
mFrame->Style(),
|
|
flags,
|
|
mFrame->GetSkipSides());
|
|
|
|
nsDisplayBorderGeometry::UpdateDrawResult(this, result);
|
|
}
|
|
|
|
nsRect
|
|
nsDisplayBorder::GetBounds(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
*aSnap = true;
|
|
return mBounds;
|
|
}
|
|
|
|
// Given a region, compute a conservative approximation to it as a list
|
|
// of rectangles that aren't vertically adjacent (i.e., vertically
|
|
// adjacent or overlapping rectangles are combined).
|
|
// Right now this is only approximate, some vertically overlapping rectangles
|
|
// aren't guaranteed to be combined.
|
|
static void
|
|
ComputeDisjointRectangles(const nsRegion& aRegion,
|
|
nsTArray<nsRect>* aRects) {
|
|
nscoord accumulationMargin = nsPresContext::CSSPixelsToAppUnits(25);
|
|
nsRect accumulated;
|
|
|
|
for (auto iter = aRegion.RectIter(); !iter.Done(); iter.Next()) {
|
|
const nsRect& r = iter.Get();
|
|
if (accumulated.IsEmpty()) {
|
|
accumulated = r;
|
|
continue;
|
|
}
|
|
|
|
if (accumulated.YMost() >= r.y - accumulationMargin) {
|
|
accumulated.UnionRect(accumulated, r);
|
|
} else {
|
|
aRects->AppendElement(accumulated);
|
|
accumulated = r;
|
|
}
|
|
}
|
|
|
|
// Finish the in-flight rectangle, if there is one.
|
|
if (!accumulated.IsEmpty()) {
|
|
aRects->AppendElement(accumulated);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsDisplayBoxShadowOuter::Paint(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx) {
|
|
nsPoint offset = ToReferenceFrame();
|
|
nsRect borderRect = mFrame->VisualBorderRectRelativeToSelf() + offset;
|
|
nsPresContext* presContext = mFrame->PresContext();
|
|
AutoTArray<nsRect,10> rects;
|
|
ComputeDisjointRectangles(mVisibleRegion, &rects);
|
|
|
|
AUTO_PROFILER_LABEL("nsDisplayBoxShadowOuter::Paint", GRAPHICS);
|
|
|
|
for (uint32_t i = 0; i < rects.Length(); ++i) {
|
|
nsCSSRendering::PaintBoxShadowOuter(presContext, *aCtx, mFrame,
|
|
borderRect, rects[i], mOpacity);
|
|
}
|
|
}
|
|
|
|
nsRect
|
|
nsDisplayBoxShadowOuter::GetBounds(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
*aSnap = false;
|
|
return mBounds;
|
|
}
|
|
|
|
nsRect
|
|
nsDisplayBoxShadowOuter::GetBoundsInternal() {
|
|
return nsLayoutUtils::GetBoxShadowRectForFrame(mFrame, mFrame->GetSize()) +
|
|
ToReferenceFrame();
|
|
}
|
|
|
|
bool
|
|
nsDisplayBoxShadowOuter::IsInvisibleInRect(const nsRect& aRect) const
|
|
{
|
|
nsPoint origin = ToReferenceFrame();
|
|
nsRect frameRect(origin, mFrame->GetSize());
|
|
if (!frameRect.Contains(aRect))
|
|
return false;
|
|
|
|
// the visible region is entirely inside the border-rect, and box shadows
|
|
// never render within the border-rect (unless there's a border radius).
|
|
nscoord twipsRadii[8];
|
|
bool hasBorderRadii = mFrame->GetBorderRadii(twipsRadii);
|
|
if (!hasBorderRadii)
|
|
return true;
|
|
|
|
return RoundedRectContainsRect(frameRect, twipsRadii, aRect);
|
|
}
|
|
|
|
bool
|
|
nsDisplayBoxShadowOuter::ComputeVisibility(nsDisplayListBuilder* aBuilder,
|
|
nsRegion* aVisibleRegion) {
|
|
if (!nsDisplayItem::ComputeVisibility(aBuilder, aVisibleRegion)) {
|
|
return false;
|
|
}
|
|
|
|
mVisibleRegion.And(*aVisibleRegion, GetPaintRect());
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
nsDisplayBoxShadowOuter::CanBuildWebRenderDisplayItems()
|
|
{
|
|
nsCSSShadowArray* shadows = mFrame->StyleEffects()->mBoxShadow;
|
|
if (!shadows) {
|
|
return false;
|
|
}
|
|
|
|
bool hasBorderRadius;
|
|
bool nativeTheme =
|
|
nsCSSRendering::HasBoxShadowNativeTheme(mFrame, hasBorderRadius);
|
|
|
|
// We don't support native themed things yet like box shadows around
|
|
// input buttons.
|
|
if (nativeTheme) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
nsDisplayBoxShadowOuter::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
if (!CanBuildWebRenderDisplayItems()) {
|
|
return false;
|
|
}
|
|
|
|
int32_t appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
nsPoint offset = ToReferenceFrame();
|
|
nsRect borderRect = mFrame->VisualBorderRectRelativeToSelf() + offset;
|
|
AutoTArray<nsRect,10> rects;
|
|
bool snap;
|
|
nsRect bounds = GetBounds(aDisplayListBuilder, &snap);
|
|
ComputeDisjointRectangles(bounds, &rects);
|
|
|
|
bool hasBorderRadius;
|
|
bool nativeTheme = nsCSSRendering::HasBoxShadowNativeTheme(mFrame,
|
|
hasBorderRadius);
|
|
|
|
// Don't need the full size of the shadow rect like we do in
|
|
// nsCSSRendering since WR takes care of calculations for blur
|
|
// and spread radius.
|
|
nsRect frameRect = nsCSSRendering::GetShadowRect(borderRect,
|
|
nativeTheme,
|
|
mFrame);
|
|
|
|
RectCornerRadii borderRadii;
|
|
if (hasBorderRadius) {
|
|
hasBorderRadius = nsCSSRendering::GetBorderRadii(frameRect,
|
|
borderRect,
|
|
mFrame,
|
|
borderRadii);
|
|
}
|
|
|
|
// Everything here is in app units, change to device units.
|
|
for (uint32_t i = 0; i < rects.Length(); ++i) {
|
|
LayoutDeviceRect clipRect = LayoutDeviceRect::FromAppUnits(
|
|
rects[i], appUnitsPerDevPixel);
|
|
nsCSSShadowArray* shadows = mFrame->StyleEffects()->mBoxShadow;
|
|
MOZ_ASSERT(shadows);
|
|
|
|
for (uint32_t j = shadows->Length(); j > 0; j--) {
|
|
nsCSSShadowItem* shadow = shadows->ShadowAt(j - 1);
|
|
if (shadow->mInset) {
|
|
continue;
|
|
}
|
|
|
|
float blurRadius = float(shadow->mRadius) / float(appUnitsPerDevPixel);
|
|
gfx::Color shadowColor = nsCSSRendering::GetShadowColor(shadow,
|
|
mFrame,
|
|
mOpacity);
|
|
|
|
// We don't move the shadow rect here since WR does it for us
|
|
// Now translate everything to device pixels.
|
|
nsRect shadowRect = frameRect;
|
|
LayoutDevicePoint shadowOffset = LayoutDevicePoint::FromAppUnits(
|
|
nsPoint(shadow->mXOffset, shadow->mYOffset),
|
|
appUnitsPerDevPixel);
|
|
|
|
LayoutDeviceRect deviceBox = LayoutDeviceRect::FromAppUnits(
|
|
shadowRect, appUnitsPerDevPixel);
|
|
wr::LayoutRect deviceBoxRect = wr::ToRoundedLayoutRect(deviceBox);
|
|
wr::LayoutRect deviceClipRect = wr::ToRoundedLayoutRect(clipRect);
|
|
|
|
LayoutDeviceSize zeroSize;
|
|
wr::BorderRadius borderRadius = wr::ToBorderRadius(zeroSize, zeroSize,
|
|
zeroSize, zeroSize);
|
|
if (hasBorderRadius) {
|
|
borderRadius = wr::ToBorderRadius(
|
|
LayoutDeviceSize::FromUnknownSize(borderRadii.TopLeft()),
|
|
LayoutDeviceSize::FromUnknownSize(borderRadii.TopRight()),
|
|
LayoutDeviceSize::FromUnknownSize(borderRadii.BottomLeft()),
|
|
LayoutDeviceSize::FromUnknownSize(borderRadii.BottomRight()));
|
|
}
|
|
|
|
float spreadRadius = float(shadow->mSpread) / float(appUnitsPerDevPixel);
|
|
|
|
aBuilder.PushBoxShadow(deviceBoxRect,
|
|
deviceClipRect,
|
|
!BackfaceIsHidden(),
|
|
deviceBoxRect,
|
|
wr::ToLayoutVector2D(shadowOffset),
|
|
wr::ToColorF(shadowColor),
|
|
blurRadius,
|
|
spreadRadius,
|
|
borderRadius,
|
|
wr::BoxShadowClipMode::Outset);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
nsDisplayBoxShadowOuter::ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayItemGeometry* aGeometry,
|
|
nsRegion* aInvalidRegion) const
|
|
{
|
|
const nsDisplayBoxShadowOuterGeometry* geometry =
|
|
static_cast<const nsDisplayBoxShadowOuterGeometry*>(aGeometry);
|
|
bool snap;
|
|
if (!geometry->mBounds.IsEqualInterior(GetBounds(aBuilder, &snap)) ||
|
|
!geometry->mBorderRect.IsEqualInterior(GetBorderRect()) ||
|
|
mOpacity != geometry->mOpacity) {
|
|
nsRegion oldShadow, newShadow;
|
|
nscoord dontCare[8];
|
|
bool hasBorderRadius = mFrame->GetBorderRadii(dontCare);
|
|
if (hasBorderRadius) {
|
|
// If we have rounded corners then we need to invalidate the frame area
|
|
// too since we paint into it.
|
|
oldShadow = geometry->mBounds;
|
|
newShadow = GetBounds(aBuilder, &snap);
|
|
} else {
|
|
oldShadow.Sub(geometry->mBounds, geometry->mBorderRect);
|
|
newShadow.Sub(GetBounds(aBuilder, &snap), GetBorderRect());
|
|
}
|
|
aInvalidRegion->Or(oldShadow, newShadow);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
nsDisplayBoxShadowInner::Paint(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx) {
|
|
nsPoint offset = ToReferenceFrame();
|
|
nsRect borderRect = nsRect(offset, mFrame->GetSize());
|
|
nsPresContext* presContext = mFrame->PresContext();
|
|
AutoTArray<nsRect,10> rects;
|
|
ComputeDisjointRectangles(mVisibleRegion, &rects);
|
|
|
|
AUTO_PROFILER_LABEL("nsDisplayBoxShadowInner::Paint", GRAPHICS);
|
|
|
|
DrawTarget* drawTarget = aCtx->GetDrawTarget();
|
|
gfxContext* gfx = aCtx;
|
|
int32_t appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
|
|
for (uint32_t i = 0; i < rects.Length(); ++i) {
|
|
gfx->Save();
|
|
gfx->Clip(NSRectToSnappedRect(rects[i], appUnitsPerDevPixel, *drawTarget));
|
|
nsCSSRendering::PaintBoxShadowInner(presContext, *aCtx, mFrame, borderRect);
|
|
gfx->Restore();
|
|
}
|
|
}
|
|
|
|
bool
|
|
nsDisplayBoxShadowInner::CanCreateWebRenderCommands(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame,
|
|
nsPoint aReferenceOffset)
|
|
{
|
|
nsCSSShadowArray *shadows = aFrame->StyleEffects()->mBoxShadow;
|
|
if (!shadows) {
|
|
// Means we don't have to paint anything
|
|
return true;
|
|
}
|
|
|
|
bool hasBorderRadius;
|
|
bool nativeTheme =
|
|
nsCSSRendering::HasBoxShadowNativeTheme(aFrame, hasBorderRadius);
|
|
|
|
// We don't support native themed things yet like box shadows around
|
|
// input buttons.
|
|
if (nativeTheme) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/* static */ void
|
|
nsDisplayBoxShadowInner::CreateInsetBoxShadowWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
const StackingContextHelper& aSc,
|
|
nsRegion& aVisibleRegion,
|
|
nsIFrame* aFrame,
|
|
const nsRect aBorderRect)
|
|
{
|
|
if (!nsCSSRendering::ShouldPaintBoxShadowInner(aFrame)) {
|
|
return;
|
|
}
|
|
|
|
int32_t appUnitsPerDevPixel = aFrame->PresContext()->AppUnitsPerDevPixel();
|
|
|
|
AutoTArray<nsRect,10> rects;
|
|
ComputeDisjointRectangles(aVisibleRegion, &rects);
|
|
|
|
nsCSSShadowArray* shadows = aFrame->StyleEffects()->mBoxShadow;
|
|
|
|
for (uint32_t i = 0; i < rects.Length(); ++i) {
|
|
LayoutDeviceRect clipRect = LayoutDeviceRect::FromAppUnits(
|
|
rects[i], appUnitsPerDevPixel);
|
|
|
|
for (uint32_t i = shadows->Length(); i > 0; --i) {
|
|
nsCSSShadowItem* shadowItem = shadows->ShadowAt(i - 1);
|
|
if (!shadowItem->mInset) {
|
|
continue;
|
|
}
|
|
|
|
nsRect shadowRect =
|
|
nsCSSRendering::GetBoxShadowInnerPaddingRect(aFrame, aBorderRect);
|
|
RectCornerRadii innerRadii;
|
|
nsCSSRendering::GetShadowInnerRadii(aFrame, aBorderRect, innerRadii);
|
|
|
|
// Now translate everything to device pixels.
|
|
LayoutDeviceRect deviceBoxRect = LayoutDeviceRect::FromAppUnits(
|
|
shadowRect, appUnitsPerDevPixel);
|
|
wr::LayoutRect deviceClipRect = wr::ToRoundedLayoutRect(clipRect);
|
|
Color shadowColor = nsCSSRendering::GetShadowColor(shadowItem, aFrame, 1.0);
|
|
|
|
LayoutDevicePoint shadowOffset = LayoutDevicePoint::FromAppUnits(
|
|
nsPoint(shadowItem->mXOffset, shadowItem->mYOffset),
|
|
appUnitsPerDevPixel);
|
|
|
|
float blurRadius = float(shadowItem->mRadius) / float(appUnitsPerDevPixel);
|
|
|
|
wr::BorderRadius borderRadius = wr::ToBorderRadius(
|
|
LayoutDeviceSize::FromUnknownSize(innerRadii.TopLeft()),
|
|
LayoutDeviceSize::FromUnknownSize(innerRadii.TopRight()),
|
|
LayoutDeviceSize::FromUnknownSize(innerRadii.BottomLeft()),
|
|
LayoutDeviceSize::FromUnknownSize(innerRadii.BottomRight()));
|
|
// NOTE: Any spread radius > 0 will render nothing. WR Bug.
|
|
float spreadRadius = float(shadowItem->mSpread) / float(appUnitsPerDevPixel);
|
|
|
|
aBuilder.PushBoxShadow(wr::ToLayoutRect(deviceBoxRect),
|
|
deviceClipRect,
|
|
!aFrame->BackfaceIsHidden(),
|
|
wr::ToLayoutRect(deviceBoxRect),
|
|
wr::ToLayoutVector2D(shadowOffset),
|
|
wr::ToColorF(shadowColor),
|
|
blurRadius,
|
|
spreadRadius,
|
|
borderRadius,
|
|
wr::BoxShadowClipMode::Inset
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool
|
|
nsDisplayBoxShadowInner::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
if (!CanCreateWebRenderCommands(aDisplayListBuilder, mFrame, ToReferenceFrame())) {
|
|
return false;
|
|
}
|
|
|
|
bool snap;
|
|
nsRegion visible = GetBounds(aDisplayListBuilder, &snap);
|
|
nsPoint offset = ToReferenceFrame();
|
|
nsRect borderRect = nsRect(offset, mFrame->GetSize());
|
|
nsDisplayBoxShadowInner::CreateInsetBoxShadowWebRenderCommands(aBuilder, aSc, visible,
|
|
mFrame, borderRect);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
nsDisplayBoxShadowInner::ComputeVisibility(nsDisplayListBuilder* aBuilder,
|
|
nsRegion* aVisibleRegion) {
|
|
if (!nsDisplayItem::ComputeVisibility(aBuilder, aVisibleRegion)) {
|
|
return false;
|
|
}
|
|
|
|
mVisibleRegion.And(*aVisibleRegion, GetPaintRect());
|
|
return true;
|
|
}
|
|
|
|
nsDisplayWrapList::nsDisplayWrapList(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList, bool aAnonymous)
|
|
: nsDisplayWrapList(aBuilder, aFrame, aList,
|
|
aBuilder->CurrentActiveScrolledRoot(), false, 0, aAnonymous)
|
|
{}
|
|
|
|
nsDisplayWrapList::nsDisplayWrapList(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList,
|
|
const ActiveScrolledRoot* aActiveScrolledRoot,
|
|
bool aClearClipChain,
|
|
uint32_t aIndex,
|
|
bool aAnonymous)
|
|
: nsDisplayItem(aBuilder, aFrame, aActiveScrolledRoot, aAnonymous)
|
|
, mFrameActiveScrolledRoot(aBuilder->CurrentActiveScrolledRoot())
|
|
, mOverrideZIndex(0)
|
|
, mIndex(aIndex)
|
|
, mHasZIndexOverride(false)
|
|
, mClearingClipChain(aClearClipChain)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayWrapList);
|
|
|
|
mBaseBuildingRect = GetBuildingRect();
|
|
|
|
mListPtr = &mList;
|
|
mListPtr->AppendToTop(aList);
|
|
UpdateBounds(aBuilder);
|
|
|
|
if (!aFrame || !aFrame->IsTransformed()) {
|
|
return;
|
|
}
|
|
|
|
// If we're a transformed frame, then we need to find out if we're inside
|
|
// the nsDisplayTransform or outside of it. Frames inside the transform
|
|
// need mReferenceFrame == mFrame, outside needs the next ancestor
|
|
// reference frame.
|
|
// If we're inside the transform, then the nsDisplayItem constructor
|
|
// will have done the right thing.
|
|
// If we're outside the transform, then we should have only one child
|
|
// (since nsDisplayTransform wraps all actual content), and that child
|
|
// will have the correct reference frame set (since nsDisplayTransform
|
|
// handles this explictly).
|
|
nsDisplayItem *i = mListPtr->GetBottom();
|
|
if (i && (!i->GetAbove() || i->GetType() == DisplayItemType::TYPE_TRANSFORM) &&
|
|
i->Frame() == mFrame) {
|
|
mReferenceFrame = i->ReferenceFrame();
|
|
mToReferenceFrame = i->ToReferenceFrame();
|
|
}
|
|
|
|
nsRect visible = aBuilder->GetVisibleRect() +
|
|
aBuilder->GetCurrentFrameOffsetToReferenceFrame();
|
|
|
|
SetBuildingRect(visible);
|
|
}
|
|
|
|
nsDisplayWrapList::nsDisplayWrapList(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayItem* aItem, bool aAnonymous)
|
|
: nsDisplayItem(aBuilder, aFrame, aBuilder->CurrentActiveScrolledRoot(), aAnonymous)
|
|
, mOverrideZIndex(0)
|
|
, mIndex(0)
|
|
, mHasZIndexOverride(false)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayWrapList);
|
|
|
|
mBaseBuildingRect = GetBuildingRect();
|
|
|
|
mListPtr = &mList;
|
|
mListPtr->AppendToTop(aItem);
|
|
UpdateBounds(aBuilder);
|
|
|
|
if (!aFrame || !aFrame->IsTransformed()) {
|
|
return;
|
|
}
|
|
|
|
// See the previous nsDisplayWrapList constructor
|
|
if (aItem->Frame() == aFrame) {
|
|
mReferenceFrame = aItem->ReferenceFrame();
|
|
mToReferenceFrame = aItem->ToReferenceFrame();
|
|
}
|
|
|
|
nsRect visible = aBuilder->GetVisibleRect() +
|
|
aBuilder->GetCurrentFrameOffsetToReferenceFrame();
|
|
|
|
SetBuildingRect(visible);
|
|
}
|
|
|
|
nsDisplayWrapList::~nsDisplayWrapList() {
|
|
MOZ_COUNT_DTOR(nsDisplayWrapList);
|
|
}
|
|
|
|
void
|
|
nsDisplayWrapList::MergeDisplayListFromItem(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayItem* aItem)
|
|
{
|
|
const nsDisplayWrapList* wrappedItem = aItem->AsDisplayWrapList();
|
|
MOZ_ASSERT(wrappedItem);
|
|
|
|
// Create a new nsDisplayWrapList using a copy-constructor. This is done
|
|
// to preserve the information about bounds.
|
|
nsDisplayWrapList* wrapper = MakeDisplayItem<nsDisplayWrapList>(aBuilder, *wrappedItem);
|
|
|
|
// Set the display list pointer of the new wrapper item to the display list
|
|
// of the wrapped item.
|
|
wrapper->mListPtr = wrappedItem->mListPtr;
|
|
|
|
mListPtr->AppendToBottom(wrapper);
|
|
}
|
|
|
|
void
|
|
nsDisplayWrapList::HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect,
|
|
HitTestState* aState, nsTArray<nsIFrame*> *aOutFrames) {
|
|
mListPtr->HitTest(aBuilder, aRect, aState, aOutFrames);
|
|
}
|
|
|
|
nsRect
|
|
nsDisplayWrapList::GetBounds(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
*aSnap = false;
|
|
return mBounds;
|
|
}
|
|
|
|
bool
|
|
nsDisplayWrapList::ComputeVisibility(nsDisplayListBuilder* aBuilder,
|
|
nsRegion* aVisibleRegion) {
|
|
// Convert the passed in visible region to our appunits.
|
|
nsRegion visibleRegion;
|
|
// mVisibleRect has been clipped to GetClippedBounds
|
|
visibleRegion.And(*aVisibleRegion, GetPaintRect());
|
|
nsRegion originalVisibleRegion = visibleRegion;
|
|
|
|
bool retval =
|
|
mListPtr->ComputeVisibilityForSublist(aBuilder,
|
|
&visibleRegion,
|
|
GetPaintRect());
|
|
nsRegion removed;
|
|
// removed = originalVisibleRegion - visibleRegion
|
|
removed.Sub(originalVisibleRegion, visibleRegion);
|
|
// aVisibleRegion = aVisibleRegion - removed (modulo any simplifications
|
|
// SubtractFromVisibleRegion does)
|
|
aBuilder->SubtractFromVisibleRegion(aVisibleRegion, removed);
|
|
|
|
return retval;
|
|
}
|
|
|
|
nsRegion
|
|
nsDisplayWrapList::GetOpaqueRegion(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
*aSnap = false;
|
|
nsRegion result;
|
|
if (mListPtr->IsOpaque()) {
|
|
// Everything within GetBounds that's visible is opaque.
|
|
result = GetBounds(aBuilder, aSnap);
|
|
} else if (aBuilder->HitTestIsForVisibility()) {
|
|
// If we care about an accurate opaque region, iterate the display list
|
|
// and build up a region of opaque bounds.
|
|
nsDisplayItem* item = mList.GetBottom();
|
|
while (item) {
|
|
result.OrWith(item->GetOpaqueRegion(aBuilder, aSnap));
|
|
item = item->GetAbove();
|
|
}
|
|
}
|
|
*aSnap = false;
|
|
return result;
|
|
}
|
|
|
|
Maybe<nscolor>
|
|
nsDisplayWrapList::IsUniform(nsDisplayListBuilder* aBuilder) const
|
|
{
|
|
// We could try to do something but let's conservatively just return Nothing.
|
|
return Nothing();
|
|
}
|
|
|
|
void nsDisplayWrapList::Paint(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx) {
|
|
NS_ERROR("nsDisplayWrapList should have been flattened away for painting");
|
|
}
|
|
|
|
/**
|
|
* Returns true if all descendant display items can be placed in the same
|
|
* PaintedLayer --- GetLayerState returns LAYER_INACTIVE or LAYER_NONE,
|
|
* and they all have the expected animated geometry root.
|
|
*/
|
|
static LayerState
|
|
RequiredLayerStateForChildren(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters,
|
|
const nsDisplayList& aList,
|
|
AnimatedGeometryRoot* aExpectedAnimatedGeometryRootForChildren)
|
|
{
|
|
LayerState result = LAYER_INACTIVE;
|
|
for (nsDisplayItem* i = aList.GetBottom(); i; i = i->GetAbove()) {
|
|
if (result == LAYER_INACTIVE &&
|
|
i->GetAnimatedGeometryRoot() != aExpectedAnimatedGeometryRootForChildren) {
|
|
result = LAYER_ACTIVE;
|
|
}
|
|
|
|
LayerState state = i->GetLayerState(aBuilder, aManager, aParameters);
|
|
if (state == LAYER_ACTIVE &&
|
|
(i->GetType() == DisplayItemType::TYPE_BLEND_MODE ||
|
|
i->GetType() == DisplayItemType::TYPE_TABLE_BLEND_MODE)) {
|
|
// nsDisplayBlendMode always returns LAYER_ACTIVE to ensure that the
|
|
// blending operation happens in the intermediate surface of its parent
|
|
// display item (usually an nsDisplayBlendContainer). But this does not
|
|
// mean that it needs all its ancestor display items to become active.
|
|
// So we ignore its layer state and look at its children instead.
|
|
state = RequiredLayerStateForChildren(aBuilder, aManager, aParameters,
|
|
*i->GetSameCoordinateSystemChildren(), i->GetAnimatedGeometryRoot());
|
|
}
|
|
if ((state == LAYER_ACTIVE || state == LAYER_ACTIVE_FORCE) &&
|
|
state > result) {
|
|
result = state;
|
|
}
|
|
if (state == LAYER_ACTIVE_EMPTY && state > result) {
|
|
result = LAYER_ACTIVE_FORCE;
|
|
}
|
|
if (state == LAYER_NONE) {
|
|
nsDisplayList* list = i->GetSameCoordinateSystemChildren();
|
|
if (list) {
|
|
LayerState childState =
|
|
RequiredLayerStateForChildren(aBuilder, aManager, aParameters, *list,
|
|
aExpectedAnimatedGeometryRootForChildren);
|
|
if (childState > result) {
|
|
result = childState;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
nsRect nsDisplayWrapList::GetComponentAlphaBounds(nsDisplayListBuilder* aBuilder) const
|
|
{
|
|
nsRect bounds;
|
|
for (nsDisplayItem* i = mListPtr->GetBottom(); i; i = i->GetAbove()) {
|
|
bounds.UnionRect(bounds, i->GetComponentAlphaBounds(aBuilder));
|
|
}
|
|
return bounds;
|
|
}
|
|
|
|
void
|
|
nsDisplayWrapList::SetReferenceFrame(const nsIFrame* aFrame)
|
|
{
|
|
mReferenceFrame = aFrame;
|
|
mToReferenceFrame = mFrame->GetOffsetToCrossDoc(mReferenceFrame);
|
|
}
|
|
|
|
bool
|
|
nsDisplayWrapList::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
aManager->CommandBuilder().CreateWebRenderCommandsFromDisplayList(GetChildren(),
|
|
this,
|
|
aDisplayListBuilder,
|
|
aSc,
|
|
aBuilder,
|
|
aResources);
|
|
return true;
|
|
}
|
|
|
|
static nsresult
|
|
WrapDisplayList(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame,
|
|
nsDisplayList* aList, nsDisplayWrapper* aWrapper) {
|
|
if (!aList->GetTop())
|
|
return NS_OK;
|
|
nsDisplayItem* item = aWrapper->WrapList(aBuilder, aFrame, aList);
|
|
if (!item)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
// aList was emptied
|
|
aList->AppendToTop(item);
|
|
return NS_OK;
|
|
}
|
|
|
|
static nsresult
|
|
WrapEachDisplayItem(nsDisplayListBuilder* aBuilder,
|
|
nsDisplayList* aList, nsDisplayWrapper* aWrapper) {
|
|
nsDisplayList newList;
|
|
nsDisplayItem* item;
|
|
while ((item = aList->RemoveBottom())) {
|
|
item = aWrapper->WrapItem(aBuilder, item);
|
|
if (!item)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
newList.AppendToTop(item);
|
|
}
|
|
// aList was emptied
|
|
aList->AppendToTop(&newList);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsDisplayWrapper::WrapLists(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, const nsDisplayListSet& aIn, const nsDisplayListSet& aOut)
|
|
{
|
|
nsresult rv = WrapListsInPlace(aBuilder, aFrame, aIn);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (&aOut == &aIn)
|
|
return NS_OK;
|
|
aOut.BorderBackground()->AppendToTop(aIn.BorderBackground());
|
|
aOut.BlockBorderBackgrounds()->AppendToTop(aIn.BlockBorderBackgrounds());
|
|
aOut.Floats()->AppendToTop(aIn.Floats());
|
|
aOut.Content()->AppendToTop(aIn.Content());
|
|
aOut.PositionedDescendants()->AppendToTop(aIn.PositionedDescendants());
|
|
aOut.Outlines()->AppendToTop(aIn.Outlines());
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsDisplayWrapper::WrapListsInPlace(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, const nsDisplayListSet& aLists)
|
|
{
|
|
nsresult rv;
|
|
if (WrapBorderBackground()) {
|
|
// Our border-backgrounds are in-flow
|
|
rv = WrapDisplayList(aBuilder, aFrame, aLists.BorderBackground(), this);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
// Our block border-backgrounds are in-flow
|
|
rv = WrapDisplayList(aBuilder, aFrame, aLists.BlockBorderBackgrounds(), this);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
// The floats are not in flow
|
|
rv = WrapEachDisplayItem(aBuilder, aLists.Floats(), this);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
// Our child content is in flow
|
|
rv = WrapDisplayList(aBuilder, aFrame, aLists.Content(), this);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
// The positioned descendants may not be in-flow
|
|
rv = WrapEachDisplayItem(aBuilder, aLists.PositionedDescendants(), this);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
// The outlines may not be in-flow
|
|
return WrapEachDisplayItem(aBuilder, aLists.Outlines(), this);
|
|
}
|
|
|
|
nsDisplayOpacity::nsDisplayOpacity(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList,
|
|
const ActiveScrolledRoot* aActiveScrolledRoot,
|
|
bool aForEventsAndPluginsOnly)
|
|
: nsDisplayWrapList(aBuilder, aFrame, aList, aActiveScrolledRoot, true)
|
|
, mOpacity(aFrame->StyleEffects()->mOpacity)
|
|
, mForEventsAndPluginsOnly(aForEventsAndPluginsOnly)
|
|
, mOpacityAppliedToChildren(false)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayOpacity);
|
|
mState.mOpacity = mOpacity;
|
|
}
|
|
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
nsDisplayOpacity::~nsDisplayOpacity() {
|
|
MOZ_COUNT_DTOR(nsDisplayOpacity);
|
|
}
|
|
#endif
|
|
|
|
nsRegion nsDisplayOpacity::GetOpaqueRegion(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
*aSnap = false;
|
|
// The only time where mOpacity == 1.0 should be when we have will-change.
|
|
// We could report this as opaque then but when the will-change value starts
|
|
// animating the element would become non opaque and could cause repaints.
|
|
return nsRegion();
|
|
}
|
|
|
|
// nsDisplayOpacity uses layers for rendering
|
|
already_AddRefed<Layer>
|
|
nsDisplayOpacity::BuildLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aContainerParameters) {
|
|
ContainerLayerParameters params = aContainerParameters;
|
|
params.mForEventsAndPluginsOnly = mForEventsAndPluginsOnly;
|
|
RefPtr<Layer> container = aManager->GetLayerBuilder()->
|
|
BuildContainerLayerFor(aBuilder, aManager, mFrame, this, &mList,
|
|
params, nullptr,
|
|
FrameLayerBuilder::CONTAINER_ALLOW_PULL_BACKGROUND_COLOR);
|
|
if (!container)
|
|
return nullptr;
|
|
|
|
container->SetOpacity(mOpacity);
|
|
nsDisplayListBuilder::AddAnimationsAndTransitionsToLayer(container, aBuilder,
|
|
this, mFrame,
|
|
eCSSProperty_opacity);
|
|
return container.forget();
|
|
}
|
|
|
|
/**
|
|
* This doesn't take into account layer scaling --- the layer may be
|
|
* rendered at a higher (or lower) resolution, affecting the retained layer
|
|
* size --- but this should be good enough.
|
|
*/
|
|
static bool
|
|
IsItemTooSmallForActiveLayer(nsIFrame* aFrame)
|
|
{
|
|
nsIntRect visibleDevPixels = aFrame->GetVisualOverflowRectRelativeToSelf().ToOutsidePixels(
|
|
aFrame->PresContext()->AppUnitsPerDevPixel());
|
|
return visibleDevPixels.Size() <
|
|
nsIntSize(gfxPrefs::LayoutMinActiveLayerSize(),
|
|
gfxPrefs::LayoutMinActiveLayerSize());
|
|
}
|
|
|
|
/* static */ bool
|
|
nsDisplayOpacity::NeedsActiveLayer(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame)
|
|
{
|
|
if (EffectCompositor::HasAnimationsForCompositor(aFrame,
|
|
eCSSProperty_opacity) ||
|
|
(ActiveLayerTracker::IsStyleAnimated(aBuilder, aFrame,
|
|
eCSSProperty_opacity) &&
|
|
!IsItemTooSmallForActiveLayer(aFrame))) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/* static */ bool
|
|
nsDisplayOpacity::MayNeedActiveLayer(nsIFrame* aFrame)
|
|
{
|
|
return ActiveLayerTracker::IsStyleMaybeAnimated(aFrame, eCSSProperty_opacity);
|
|
}
|
|
|
|
void
|
|
nsDisplayOpacity::ApplyOpacity(nsDisplayListBuilder* aBuilder,
|
|
float aOpacity,
|
|
const DisplayItemClipChain* aClip)
|
|
{
|
|
NS_ASSERTION(CanApplyOpacity(), "ApplyOpacity should be allowed");
|
|
mOpacity = mOpacity * aOpacity;
|
|
IntersectClip(aBuilder, aClip, false);
|
|
}
|
|
|
|
bool
|
|
nsDisplayOpacity::CanApplyOpacity() const
|
|
{
|
|
return !EffectCompositor::HasAnimationsForCompositor(mFrame,
|
|
eCSSProperty_opacity);
|
|
}
|
|
|
|
/**
|
|
* Recursively iterates through |aList| and collects at most |aMaxChildCount|
|
|
* display item pointers to items that return true for CanApplyOpacity().
|
|
* The item pointers are added to |aArray|.
|
|
*
|
|
* LayerEventRegions and WrapList items are ignored.
|
|
*
|
|
* We need to do this recursively, because the child display items might contain
|
|
* nested nsDisplayWrapLists.
|
|
*
|
|
* Returns false if there are more than |aMaxChildCount| items, or if an item
|
|
* that returns false for CanApplyOpacity() is encountered.
|
|
* Otherwise returns true.
|
|
*/
|
|
static bool
|
|
CollectItemsWithOpacity(nsDisplayList* aList,
|
|
nsTArray<nsDisplayItem*>& aArray,
|
|
const size_t aMaxChildCount)
|
|
{
|
|
for (nsDisplayItem* i = aList->GetBottom(); i; i = i->GetAbove()) {
|
|
DisplayItemType type = i->GetType();
|
|
nsDisplayList* children = i->GetChildren();
|
|
|
|
// Descend only into wraplists.
|
|
if (type == DisplayItemType::TYPE_WRAP_LIST && children) {
|
|
// The current display item has children, process them first.
|
|
if (!CollectItemsWithOpacity(children, aArray, aMaxChildCount)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (type == DisplayItemType::TYPE_COMPOSITOR_HITTEST_INFO ||
|
|
type == DisplayItemType::TYPE_WRAP_LIST) {
|
|
continue;
|
|
}
|
|
|
|
if (!i->CanApplyOpacity() || aArray.Length() == aMaxChildCount) {
|
|
return false;
|
|
}
|
|
|
|
aArray.AppendElement(i);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
nsDisplayOpacity::ApplyOpacityToChildren(nsDisplayListBuilder* aBuilder)
|
|
{
|
|
// Only try folding our opacity down if we have at most kMaxChildCount
|
|
// children that don't overlap and can all apply the opacity to themselves.
|
|
static const size_t kMaxChildCount = 3;
|
|
|
|
// Iterate through the child display list and copy at most kMaxChildCount
|
|
// child display item pointers to a temporary list.
|
|
AutoTArray<nsDisplayItem*, kMaxChildCount> items;
|
|
if (!CollectItemsWithOpacity(&mList, items, kMaxChildCount)) {
|
|
return false;
|
|
}
|
|
|
|
struct {
|
|
nsDisplayItem* item;
|
|
nsRect bounds;
|
|
} children[kMaxChildCount];
|
|
|
|
bool snap;
|
|
size_t childCount = 0;
|
|
for (nsDisplayItem* item : items) {
|
|
children[childCount].item = item;
|
|
children[childCount].bounds = item->GetBounds(aBuilder, &snap);
|
|
childCount++;
|
|
}
|
|
|
|
for (size_t i = 0; i < childCount; i++) {
|
|
for (size_t j = i+1; j < childCount; j++) {
|
|
if (children[i].bounds.Intersects(children[j].bounds)) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (uint32_t i = 0; i < childCount; i++) {
|
|
children[i].item->ApplyOpacity(aBuilder, mOpacity, mClipChain);
|
|
}
|
|
|
|
mOpacityAppliedToChildren = true;
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
nsDisplayOpacity::ShouldFlattenAway(nsDisplayListBuilder* aBuilder)
|
|
{
|
|
// ShouldFlattenAway() should be called only once during painting.
|
|
MOZ_ASSERT(!mOpacityAppliedToChildren);
|
|
|
|
if (mFrame->GetPrevContinuation() || mFrame->GetNextContinuation() ||
|
|
mFrame->HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT)) {
|
|
// If we've been split, then we might need to merge, so
|
|
// don't flatten us away.
|
|
return false;
|
|
}
|
|
|
|
if (NeedsActiveLayer(aBuilder, mFrame) || mOpacity == 0.0) {
|
|
// If our opacity is zero then we'll discard all descendant display items
|
|
// except for layer event regions, so there's no point in doing this
|
|
// optimization (and if we do do it, then invalidations of those descendants
|
|
// might trigger repainting).
|
|
return false;
|
|
}
|
|
|
|
if (mList.IsEmpty()) {
|
|
return false;
|
|
}
|
|
|
|
// Return true if we successfully applied opacity to child items, or if
|
|
// WebRender is not in use. In the latter case, the opacity gets flattened and
|
|
// applied during layer building.
|
|
return ApplyOpacityToChildren(aBuilder) || !gfxVars::UseWebRender();
|
|
}
|
|
|
|
nsDisplayItem::LayerState
|
|
nsDisplayOpacity::GetLayerState(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters) {
|
|
// If we only created this item so that we'd get correct nsDisplayEventRegions for child
|
|
// frames, then force us to inactive to avoid unnecessary layerization changes for content
|
|
// that won't ever be painted.
|
|
if (mForEventsAndPluginsOnly) {
|
|
MOZ_ASSERT(mOpacity == 0);
|
|
return LAYER_INACTIVE;
|
|
}
|
|
|
|
if (NeedsActiveLayer(aBuilder, mFrame)) {
|
|
// Returns LAYER_ACTIVE_FORCE to avoid flatterning the layer for async
|
|
// animations.
|
|
return LAYER_ACTIVE_FORCE;
|
|
}
|
|
|
|
return RequiredLayerStateForChildren(aBuilder, aManager, aParameters, mList, GetAnimatedGeometryRoot());
|
|
}
|
|
|
|
bool
|
|
nsDisplayOpacity::ComputeVisibility(nsDisplayListBuilder* aBuilder,
|
|
nsRegion* aVisibleRegion) {
|
|
// Our children are translucent so we should not allow them to subtract
|
|
// area from aVisibleRegion. We do need to find out what is visible under
|
|
// our children in the temporary compositing buffer, because if our children
|
|
// paint our entire bounds opaquely then we don't need an alpha channel in
|
|
// the temporary compositing buffer.
|
|
nsRect bounds = GetClippedBounds(aBuilder);
|
|
nsRegion visibleUnderChildren;
|
|
visibleUnderChildren.And(*aVisibleRegion, bounds);
|
|
return
|
|
nsDisplayWrapList::ComputeVisibility(aBuilder, &visibleUnderChildren);
|
|
}
|
|
|
|
void
|
|
nsDisplayOpacity::ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayItemGeometry* aGeometry,
|
|
nsRegion* aInvalidRegion) const
|
|
{
|
|
const nsDisplayOpacityGeometry* geometry =
|
|
static_cast<const nsDisplayOpacityGeometry*>(aGeometry);
|
|
|
|
bool snap;
|
|
if (mOpacity != geometry->mOpacity) {
|
|
aInvalidRegion->Or(GetBounds(aBuilder, &snap), geometry->mBounds);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsDisplayOpacity::WriteDebugInfo(std::stringstream& aStream)
|
|
{
|
|
aStream << " (opacity " << mOpacity << ")";
|
|
}
|
|
|
|
bool
|
|
nsDisplayOpacity::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
float* opacityForSC = &mOpacity;
|
|
|
|
RefPtr<WebRenderAnimationData> animationData = aManager->CommandBuilder().CreateOrRecycleWebRenderUserData<WebRenderAnimationData>(this);
|
|
AnimationInfo& animationInfo = animationData->GetAnimationInfo();
|
|
AddAnimationsForProperty(Frame(), aDisplayListBuilder,
|
|
this, eCSSProperty_opacity,
|
|
animationInfo, false, true);
|
|
animationInfo.StartPendingAnimations(aManager->GetAnimationReadyTime());
|
|
|
|
// Note that animationsId can be 0 (uninitialized in AnimationInfo) if there
|
|
// are no active animations.
|
|
uint64_t animationsId = animationInfo.GetCompositorAnimationsId();
|
|
wr::WrAnimationProperty prop;
|
|
|
|
if (!animationInfo.GetAnimations().IsEmpty()) {
|
|
prop.id = animationsId;
|
|
prop.effect_type = wr::WrAnimationType::Opacity;
|
|
|
|
|
|
OpAddCompositorAnimations
|
|
anim(CompositorAnimations(animationInfo.GetAnimations(), animationsId));
|
|
aManager->WrBridge()->AddWebRenderParentCommand(anim);
|
|
aManager->AddActiveCompositorAnimationId(animationsId);
|
|
} else if (animationsId) {
|
|
aManager->AddCompositorAnimationsIdForDiscard(animationsId);
|
|
animationsId = 0;
|
|
}
|
|
|
|
nsTArray<mozilla::wr::WrFilterOp> filters;
|
|
StackingContextHelper sc(aSc, aBuilder, filters, LayoutDeviceRect(), nullptr,
|
|
animationsId ? &prop : nullptr,
|
|
opacityForSC);
|
|
|
|
aManager->CommandBuilder().CreateWebRenderCommandsFromDisplayList(&mList,
|
|
this,
|
|
aDisplayListBuilder,
|
|
sc,
|
|
aBuilder,
|
|
aResources);
|
|
return true;
|
|
}
|
|
|
|
nsDisplayBlendMode::nsDisplayBlendMode(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList,
|
|
uint8_t aBlendMode,
|
|
const ActiveScrolledRoot* aActiveScrolledRoot,
|
|
uint32_t aIndex)
|
|
: nsDisplayWrapList(aBuilder, aFrame, aList, aActiveScrolledRoot, true)
|
|
, mBlendMode(aBlendMode)
|
|
, mIndex(aIndex)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayBlendMode);
|
|
}
|
|
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
nsDisplayBlendMode::~nsDisplayBlendMode() {
|
|
MOZ_COUNT_DTOR(nsDisplayBlendMode);
|
|
}
|
|
#endif
|
|
|
|
nsRegion nsDisplayBlendMode::GetOpaqueRegion(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
*aSnap = false;
|
|
// We are never considered opaque
|
|
return nsRegion();
|
|
}
|
|
|
|
LayerState
|
|
nsDisplayBlendMode::GetLayerState(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters)
|
|
{
|
|
return LAYER_ACTIVE;
|
|
}
|
|
|
|
bool
|
|
nsDisplayBlendMode::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
nsTArray<mozilla::wr::WrFilterOp> filters;
|
|
StackingContextHelper sc(aSc, aBuilder, filters, LayoutDeviceRect(), nullptr,
|
|
nullptr, nullptr, nullptr, nullptr,
|
|
nsCSSRendering::GetGFXBlendMode(mBlendMode));
|
|
|
|
return nsDisplayWrapList::CreateWebRenderCommands(aBuilder,aResources, sc,
|
|
aManager, aDisplayListBuilder);
|
|
}
|
|
|
|
// nsDisplayBlendMode uses layers for rendering
|
|
already_AddRefed<Layer>
|
|
nsDisplayBlendMode::BuildLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aContainerParameters) {
|
|
ContainerLayerParameters newContainerParameters = aContainerParameters;
|
|
newContainerParameters.mDisableSubpixelAntialiasingInDescendants = true;
|
|
|
|
RefPtr<Layer> container = aManager->GetLayerBuilder()->
|
|
BuildContainerLayerFor(aBuilder, aManager, mFrame, this, &mList,
|
|
newContainerParameters, nullptr);
|
|
if (!container) {
|
|
return nullptr;
|
|
}
|
|
|
|
container->SetMixBlendMode(nsCSSRendering::GetGFXBlendMode(mBlendMode));
|
|
|
|
return container.forget();
|
|
}
|
|
|
|
mozilla::gfx::CompositionOp
|
|
nsDisplayBlendMode::BlendMode()
|
|
{
|
|
return nsCSSRendering::GetGFXBlendMode(mBlendMode);
|
|
}
|
|
|
|
bool
|
|
nsDisplayBlendMode::ComputeVisibility(nsDisplayListBuilder* aBuilder,
|
|
nsRegion* aVisibleRegion) {
|
|
// Our children are need their backdrop so we should not allow them to subtract
|
|
// area from aVisibleRegion. We do need to find out what is visible under
|
|
// our children in the temporary compositing buffer, because if our children
|
|
// paint our entire bounds opaquely then we don't need an alpha channel in
|
|
// the temporary compositing buffer.
|
|
nsRect bounds = GetClippedBounds(aBuilder);
|
|
nsRegion visibleUnderChildren;
|
|
visibleUnderChildren.And(*aVisibleRegion, bounds);
|
|
return nsDisplayWrapList::ComputeVisibility(aBuilder, &visibleUnderChildren);
|
|
}
|
|
|
|
bool
|
|
nsDisplayBlendMode::CanMerge(const nsDisplayItem* aItem) const
|
|
{
|
|
// Items for the same content element should be merged into a single
|
|
// compositing group.
|
|
if (!HasSameTypeAndClip(aItem) || !HasSameContent(aItem)) {
|
|
return false;
|
|
}
|
|
|
|
const nsDisplayBlendMode* item =
|
|
static_cast<const nsDisplayBlendMode*>(aItem);
|
|
|
|
if (item->mIndex != 0 || mIndex != 0) {
|
|
// Don't merge background-blend-mode items
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/* static */ nsDisplayBlendContainer*
|
|
nsDisplayBlendContainer::CreateForMixBlendMode(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList,
|
|
const ActiveScrolledRoot* aActiveScrolledRoot)
|
|
{
|
|
return MakeDisplayItem<nsDisplayBlendContainer>(aBuilder, aFrame, aList, aActiveScrolledRoot, false);
|
|
}
|
|
|
|
/* static */ nsDisplayBlendContainer*
|
|
nsDisplayBlendContainer::CreateForBackgroundBlendMode(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList,
|
|
const ActiveScrolledRoot* aActiveScrolledRoot)
|
|
{
|
|
return MakeDisplayItem<nsDisplayBlendContainer>(aBuilder, aFrame, aList, aActiveScrolledRoot, true);
|
|
}
|
|
|
|
nsDisplayBlendContainer::nsDisplayBlendContainer(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList,
|
|
const ActiveScrolledRoot* aActiveScrolledRoot,
|
|
bool aIsForBackground)
|
|
: nsDisplayWrapList(aBuilder, aFrame, aList, aActiveScrolledRoot, true)
|
|
, mIsForBackground(aIsForBackground)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayBlendContainer);
|
|
}
|
|
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
nsDisplayBlendContainer::~nsDisplayBlendContainer() {
|
|
MOZ_COUNT_DTOR(nsDisplayBlendContainer);
|
|
}
|
|
#endif
|
|
|
|
// nsDisplayBlendContainer uses layers for rendering
|
|
already_AddRefed<Layer>
|
|
nsDisplayBlendContainer::BuildLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aContainerParameters) {
|
|
// turn off anti-aliasing in the parent stacking context because it changes
|
|
// how the group is initialized.
|
|
ContainerLayerParameters newContainerParameters = aContainerParameters;
|
|
newContainerParameters.mDisableSubpixelAntialiasingInDescendants = true;
|
|
|
|
RefPtr<Layer> container = aManager->GetLayerBuilder()->
|
|
BuildContainerLayerFor(aBuilder, aManager, mFrame, this, &mList,
|
|
newContainerParameters, nullptr);
|
|
if (!container) {
|
|
return nullptr;
|
|
}
|
|
|
|
container->SetForceIsolatedGroup(true);
|
|
return container.forget();
|
|
}
|
|
|
|
LayerState
|
|
nsDisplayBlendContainer::GetLayerState(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters)
|
|
{
|
|
return RequiredLayerStateForChildren(aBuilder, aManager, aParameters, mList, GetAnimatedGeometryRoot());
|
|
}
|
|
|
|
bool
|
|
nsDisplayBlendContainer::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
StackingContextHelper sc(aSc, aBuilder);
|
|
|
|
return nsDisplayWrapList::CreateWebRenderCommands(aBuilder, aResources, sc,
|
|
aManager, aDisplayListBuilder);
|
|
}
|
|
|
|
/* static */ nsDisplayTableBlendContainer*
|
|
nsDisplayTableBlendContainer::CreateForBackgroundBlendMode(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList,
|
|
const ActiveScrolledRoot* aActiveScrolledRoot,
|
|
nsIFrame* aAncestorFrame)
|
|
{
|
|
return MakeDisplayItem<nsDisplayTableBlendContainer>(aBuilder, aFrame, aList, aActiveScrolledRoot, true, aAncestorFrame);
|
|
}
|
|
|
|
nsDisplayOwnLayer::nsDisplayOwnLayer(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList,
|
|
const ActiveScrolledRoot* aActiveScrolledRoot,
|
|
nsDisplayOwnLayerFlags aFlags,
|
|
const ScrollbarData& aScrollbarData,
|
|
bool aForceActive,
|
|
bool aClearClipChain)
|
|
: nsDisplayWrapList(aBuilder, aFrame, aList, aActiveScrolledRoot, aClearClipChain)
|
|
, mFlags(aFlags)
|
|
, mScrollbarData(aScrollbarData)
|
|
, mForceActive(aForceActive)
|
|
, mWrAnimationId(0)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayOwnLayer);
|
|
|
|
// For scroll thumb layers, override the AGR to be the thumb's AGR rather
|
|
// than the AGR for mFrame (which is the slider frame).
|
|
if (IsScrollThumbLayer()) {
|
|
if (nsIFrame* thumbFrame = nsBox::GetChildXULBox(mFrame)) {
|
|
mAnimatedGeometryRoot = aBuilder->FindAnimatedGeometryRootFor(thumbFrame);
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
nsDisplayOwnLayer::~nsDisplayOwnLayer() {
|
|
MOZ_COUNT_DTOR(nsDisplayOwnLayer);
|
|
}
|
|
#endif
|
|
|
|
LayerState
|
|
nsDisplayOwnLayer::GetLayerState(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters)
|
|
{
|
|
if (mForceActive) {
|
|
return mozilla::LAYER_ACTIVE_FORCE;
|
|
}
|
|
|
|
return RequiredLayerStateForChildren(aBuilder, aManager, aParameters, mList, mAnimatedGeometryRoot);
|
|
}
|
|
|
|
bool
|
|
nsDisplayOwnLayer::IsScrollThumbLayer() const
|
|
{
|
|
return mScrollbarData.mScrollbarLayerType == layers::ScrollbarLayerType::Thumb;
|
|
}
|
|
|
|
bool
|
|
nsDisplayOwnLayer::IsScrollbarContainer() const
|
|
{
|
|
return mScrollbarData.mScrollbarLayerType == layers::ScrollbarLayerType::Container;
|
|
}
|
|
|
|
bool
|
|
nsDisplayOwnLayer::ShouldBuildLayerEvenIfInvisible(nsDisplayListBuilder* aBuilder) const
|
|
{
|
|
// Render scroll thumb layers even if they are invisible, because async
|
|
// scrolling might bring them into view.
|
|
return IsScrollThumbLayer();
|
|
}
|
|
|
|
// nsDisplayOpacity uses layers for rendering
|
|
already_AddRefed<Layer>
|
|
nsDisplayOwnLayer::BuildLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aContainerParameters)
|
|
{
|
|
RefPtr<ContainerLayer> layer = aManager->GetLayerBuilder()->
|
|
BuildContainerLayerFor(aBuilder, aManager, mFrame, this, &mList,
|
|
aContainerParameters, nullptr,
|
|
FrameLayerBuilder::CONTAINER_ALLOW_PULL_BACKGROUND_COLOR);
|
|
|
|
if (IsScrollThumbLayer() || IsScrollbarContainer()) {
|
|
layer->SetScrollbarData(mScrollbarData);
|
|
}
|
|
|
|
if (mFlags & nsDisplayOwnLayerFlags::eGenerateSubdocInvalidations) {
|
|
mFrame->PresContext()->SetNotifySubDocInvalidationData(layer);
|
|
}
|
|
return layer.forget();
|
|
}
|
|
|
|
bool
|
|
nsDisplayOwnLayer::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
if (!aManager->AsyncPanZoomEnabled() || !IsScrollThumbLayer()) {
|
|
return nsDisplayWrapList::CreateWebRenderCommands(aBuilder, aResources, aSc,
|
|
aManager, aDisplayListBuilder);
|
|
}
|
|
|
|
// APZ is enabled and this is a scroll thumb, so we need to create and
|
|
// set an animation id. That way APZ can move this scrollthumb around as
|
|
// needed.
|
|
RefPtr<WebRenderAnimationData> animationData = aManager->CommandBuilder().CreateOrRecycleWebRenderUserData<WebRenderAnimationData>(this);
|
|
AnimationInfo& animationInfo = animationData->GetAnimationInfo();
|
|
animationInfo.EnsureAnimationsId();
|
|
mWrAnimationId = animationInfo.GetCompositorAnimationsId();
|
|
|
|
|
|
wr::WrAnimationProperty prop;
|
|
prop.id = mWrAnimationId;
|
|
prop.effect_type = wr::WrAnimationType::Transform;
|
|
|
|
StackingContextHelper sc(aSc, aBuilder, nsTArray<wr::WrFilterOp>(),
|
|
LayoutDeviceRect(), nullptr, &prop);
|
|
|
|
nsDisplayWrapList::CreateWebRenderCommands(aBuilder, aResources, sc,
|
|
aManager, aDisplayListBuilder);
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
nsDisplayOwnLayer::UpdateScrollData(mozilla::layers::WebRenderScrollData* aData,
|
|
mozilla::layers::WebRenderLayerScrollData* aLayerData)
|
|
{
|
|
bool ret = false;
|
|
|
|
if (IsScrollThumbLayer() || IsScrollbarContainer()) {
|
|
ret = true;
|
|
if (aLayerData) {
|
|
aLayerData->SetScrollbarData(mScrollbarData);
|
|
if (IsScrollThumbLayer()) {
|
|
aLayerData->SetScrollbarAnimationId(mWrAnimationId);
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
nsDisplayOwnLayer::WriteDebugInfo(std::stringstream& aStream)
|
|
{
|
|
aStream << nsPrintfCString(" (flags 0x%x) (scrolltarget %" PRIu64 ")", (int)mFlags, mScrollbarData.mTargetViewId).get();
|
|
}
|
|
|
|
nsDisplaySubDocument::nsDisplaySubDocument(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame,
|
|
nsSubDocumentFrame* aSubDocFrame,
|
|
nsDisplayList* aList,
|
|
nsDisplayOwnLayerFlags aFlags)
|
|
: nsDisplayOwnLayer(aBuilder, aFrame, aList, aBuilder->CurrentActiveScrolledRoot(), aFlags)
|
|
, mScrollParentId(aBuilder->GetCurrentScrollParentId())
|
|
, mShouldFlatten(false)
|
|
, mSubDocFrame(aSubDocFrame)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplaySubDocument);
|
|
|
|
// The SubDocument display item is conceptually outside the viewport frame,
|
|
// so in cases where the viewport frame is an AGR, the SubDocument's AGR
|
|
// should be not the viewport frame itself, but its parent AGR.
|
|
if (*mAnimatedGeometryRoot == mFrame && mAnimatedGeometryRoot->mParentAGR) {
|
|
mAnimatedGeometryRoot = mAnimatedGeometryRoot->mParentAGR;
|
|
}
|
|
|
|
if (mSubDocFrame && mSubDocFrame != mFrame) {
|
|
mSubDocFrame->AddDisplayItem(this);
|
|
}
|
|
}
|
|
|
|
nsDisplaySubDocument::~nsDisplaySubDocument() {
|
|
MOZ_COUNT_DTOR(nsDisplaySubDocument);
|
|
if (mSubDocFrame) {
|
|
mSubDocFrame->RemoveDisplayItem(this);
|
|
}
|
|
}
|
|
|
|
nsIFrame*
|
|
nsDisplaySubDocument::FrameForInvalidation() const
|
|
{
|
|
return mSubDocFrame ? mSubDocFrame : mFrame;
|
|
}
|
|
|
|
bool
|
|
nsDisplaySubDocument::HasDeletedFrame() const
|
|
{
|
|
return !mSubDocFrame || nsDisplayItem::HasDeletedFrame();
|
|
}
|
|
|
|
void
|
|
nsDisplaySubDocument::RemoveFrame(nsIFrame* aFrame)
|
|
{
|
|
if (aFrame == mSubDocFrame) {
|
|
mSubDocFrame = nullptr;
|
|
}
|
|
nsDisplayItem::RemoveFrame(aFrame);
|
|
}
|
|
|
|
UniquePtr<ScrollMetadata>
|
|
nsDisplaySubDocument::ComputeScrollMetadata(LayerManager* aLayerManager,
|
|
const ContainerLayerParameters& aContainerParameters)
|
|
{
|
|
if (!(mFlags & nsDisplayOwnLayerFlags::eGenerateScrollableLayer)) {
|
|
return UniquePtr<ScrollMetadata>(nullptr);
|
|
}
|
|
|
|
nsPresContext* presContext = mFrame->PresContext();
|
|
nsIFrame* rootScrollFrame = presContext->PresShell()->GetRootScrollFrame();
|
|
bool isRootContentDocument = presContext->IsRootContentDocument();
|
|
nsIPresShell* presShell = presContext->PresShell();
|
|
ContainerLayerParameters params(
|
|
aContainerParameters.mXScale * presShell->GetResolution(),
|
|
aContainerParameters.mYScale * presShell->GetResolution(),
|
|
nsIntPoint(), aContainerParameters);
|
|
|
|
nsRect viewport = mFrame->GetRect() -
|
|
mFrame->GetPosition() +
|
|
mFrame->GetOffsetToCrossDoc(ReferenceFrame());
|
|
|
|
return MakeUnique<ScrollMetadata>(
|
|
nsLayoutUtils::ComputeScrollMetadata(
|
|
mFrame, rootScrollFrame, rootScrollFrame->GetContent(), ReferenceFrame(),
|
|
aLayerManager, mScrollParentId, viewport, Nothing(),
|
|
isRootContentDocument, params));
|
|
}
|
|
|
|
static bool
|
|
UseDisplayPortForViewport(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame)
|
|
{
|
|
return aBuilder->IsPaintingToWindow() &&
|
|
nsLayoutUtils::ViewportHasDisplayPort(aFrame->PresContext());
|
|
}
|
|
|
|
nsRect
|
|
nsDisplaySubDocument::GetBounds(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
bool usingDisplayPort = UseDisplayPortForViewport(aBuilder, mFrame);
|
|
|
|
if ((mFlags & nsDisplayOwnLayerFlags::eGenerateScrollableLayer) && usingDisplayPort) {
|
|
*aSnap = false;
|
|
return mFrame->GetRect() + aBuilder->ToReferenceFrame(mFrame);
|
|
}
|
|
|
|
return nsDisplayOwnLayer::GetBounds(aBuilder, aSnap);
|
|
}
|
|
|
|
bool
|
|
nsDisplaySubDocument::ComputeVisibility(nsDisplayListBuilder* aBuilder,
|
|
nsRegion* aVisibleRegion)
|
|
{
|
|
bool usingDisplayPort = UseDisplayPortForViewport(aBuilder, mFrame);
|
|
|
|
if (!(mFlags & nsDisplayOwnLayerFlags::eGenerateScrollableLayer) || !usingDisplayPort) {
|
|
return nsDisplayWrapList::ComputeVisibility(aBuilder, aVisibleRegion);
|
|
}
|
|
|
|
nsRect displayport;
|
|
nsIFrame* rootScrollFrame = mFrame->PresShell()->GetRootScrollFrame();
|
|
MOZ_ASSERT(rootScrollFrame);
|
|
Unused << nsLayoutUtils::GetDisplayPort(rootScrollFrame->GetContent(), &displayport,
|
|
RelativeTo::ScrollFrame);
|
|
|
|
nsRegion childVisibleRegion;
|
|
// The visible region for the children may be much bigger than the hole we
|
|
// are viewing the children from, so that the compositor process has enough
|
|
// content to asynchronously pan while content is being refreshed.
|
|
childVisibleRegion = displayport + mFrame->GetOffsetToCrossDoc(ReferenceFrame());
|
|
|
|
nsRect boundedRect =
|
|
childVisibleRegion.GetBounds().Intersect(
|
|
mList.GetClippedBoundsWithRespectToASR(aBuilder, mActiveScrolledRoot));
|
|
bool visible = mList.ComputeVisibilityForSublist(
|
|
aBuilder, &childVisibleRegion, boundedRect);
|
|
|
|
// If APZ is enabled then don't allow this computation to influence
|
|
// aVisibleRegion, on the assumption that the layer can be asynchronously
|
|
// scrolled so we'll definitely need all the content under it.
|
|
if (!nsLayoutUtils::UsesAsyncScrolling(mFrame)) {
|
|
bool snap;
|
|
nsRect bounds = GetBounds(aBuilder, &snap);
|
|
nsRegion removed;
|
|
removed.Sub(bounds, childVisibleRegion);
|
|
|
|
aBuilder->SubtractFromVisibleRegion(aVisibleRegion, removed);
|
|
}
|
|
|
|
return visible;
|
|
}
|
|
|
|
bool
|
|
nsDisplaySubDocument::ShouldBuildLayerEvenIfInvisible(nsDisplayListBuilder* aBuilder) const
|
|
{
|
|
bool usingDisplayPort = UseDisplayPortForViewport(aBuilder, mFrame);
|
|
|
|
if ((mFlags & nsDisplayOwnLayerFlags::eGenerateScrollableLayer) && usingDisplayPort) {
|
|
return true;
|
|
}
|
|
|
|
return nsDisplayOwnLayer::ShouldBuildLayerEvenIfInvisible(aBuilder);
|
|
}
|
|
|
|
nsRegion
|
|
nsDisplaySubDocument::GetOpaqueRegion(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
bool usingDisplayPort = UseDisplayPortForViewport(aBuilder, mFrame);
|
|
|
|
if ((mFlags & nsDisplayOwnLayerFlags::eGenerateScrollableLayer) && usingDisplayPort) {
|
|
*aSnap = false;
|
|
return nsRegion();
|
|
}
|
|
|
|
return nsDisplayOwnLayer::GetOpaqueRegion(aBuilder, aSnap);
|
|
}
|
|
|
|
nsDisplayResolution::nsDisplayResolution(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList,
|
|
nsDisplayOwnLayerFlags aFlags)
|
|
: nsDisplaySubDocument(aBuilder, aFrame, nullptr, aList, aFlags) {
|
|
MOZ_COUNT_CTOR(nsDisplayResolution);
|
|
}
|
|
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
nsDisplayResolution::~nsDisplayResolution() {
|
|
MOZ_COUNT_DTOR(nsDisplayResolution);
|
|
}
|
|
#endif
|
|
|
|
void
|
|
nsDisplayResolution::HitTest(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aRect,
|
|
HitTestState* aState,
|
|
nsTArray<nsIFrame*> *aOutFrames)
|
|
{
|
|
nsIPresShell* presShell = mFrame->PresShell();
|
|
nsRect rect = aRect.RemoveResolution(presShell->ScaleToResolution() ? presShell->GetResolution () : 1.0f);
|
|
mList.HitTest(aBuilder, rect, aState, aOutFrames);
|
|
}
|
|
|
|
already_AddRefed<Layer>
|
|
nsDisplayResolution::BuildLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aContainerParameters) {
|
|
nsIPresShell* presShell = mFrame->PresShell();
|
|
ContainerLayerParameters containerParameters(
|
|
presShell->GetResolution(), presShell->GetResolution(), nsIntPoint(),
|
|
aContainerParameters);
|
|
|
|
RefPtr<Layer> layer = nsDisplaySubDocument::BuildLayer(
|
|
aBuilder, aManager, containerParameters);
|
|
layer->SetPostScale(1.0f / presShell->GetResolution(),
|
|
1.0f / presShell->GetResolution());
|
|
layer->AsContainerLayer()->SetScaleToResolution(
|
|
presShell->ScaleToResolution(), presShell->GetResolution());
|
|
return layer.forget();
|
|
}
|
|
|
|
nsDisplayFixedPosition::nsDisplayFixedPosition(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame,
|
|
nsDisplayList* aList,
|
|
const ActiveScrolledRoot* aActiveScrolledRoot,
|
|
const ActiveScrolledRoot* aContainerASR)
|
|
: nsDisplayOwnLayer(aBuilder, aFrame, aList, aActiveScrolledRoot)
|
|
, mIndex(0)
|
|
, mIsFixedBackground(false)
|
|
, mContainerASR(aContainerASR)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayFixedPosition);
|
|
Init(aBuilder);
|
|
}
|
|
|
|
nsDisplayFixedPosition::nsDisplayFixedPosition(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame,
|
|
nsDisplayList* aList,
|
|
uint32_t aIndex)
|
|
: nsDisplayOwnLayer(aBuilder, aFrame, aList, aBuilder->CurrentActiveScrolledRoot())
|
|
, mIndex(aIndex)
|
|
, mIsFixedBackground(true)
|
|
, mContainerASR(nullptr) // XXX maybe this should be something?
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayFixedPosition);
|
|
Init(aBuilder);
|
|
}
|
|
|
|
void
|
|
nsDisplayFixedPosition::Init(nsDisplayListBuilder* aBuilder)
|
|
{
|
|
mAnimatedGeometryRootForScrollMetadata = mAnimatedGeometryRoot;
|
|
if (ShouldFixToViewport(aBuilder)) {
|
|
mAnimatedGeometryRoot = aBuilder->FindAnimatedGeometryRootFor(this);
|
|
}
|
|
}
|
|
|
|
/* static */ nsDisplayFixedPosition*
|
|
nsDisplayFixedPosition::CreateForFixedBackground(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame,
|
|
nsDisplayBackgroundImage* aImage,
|
|
uint32_t aIndex)
|
|
{
|
|
nsDisplayList temp;
|
|
temp.AppendToTop(aImage);
|
|
|
|
return MakeDisplayItem<nsDisplayFixedPosition>(aBuilder, aFrame, &temp, aIndex + 1);
|
|
}
|
|
|
|
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
nsDisplayFixedPosition::~nsDisplayFixedPosition() {
|
|
MOZ_COUNT_DTOR(nsDisplayFixedPosition);
|
|
}
|
|
#endif
|
|
|
|
already_AddRefed<Layer>
|
|
nsDisplayFixedPosition::BuildLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aContainerParameters) {
|
|
RefPtr<Layer> layer =
|
|
nsDisplayOwnLayer::BuildLayer(aBuilder, aManager, aContainerParameters);
|
|
|
|
layer->SetIsFixedPosition(true);
|
|
|
|
nsPresContext* presContext = mFrame->PresContext();
|
|
nsIFrame* fixedFrame = mIsFixedBackground ? presContext->PresShell()->GetRootFrame() : mFrame;
|
|
|
|
const nsIFrame* viewportFrame = fixedFrame->GetParent();
|
|
// anchorRect will be in the container's coordinate system (aLayer's parent layer).
|
|
// This is the same as the display items' reference frame.
|
|
nsRect anchorRect;
|
|
if (viewportFrame) {
|
|
// Fixed position frames are reflowed into the scroll-port size if one has
|
|
// been set.
|
|
if (presContext->PresShell()->IsScrollPositionClampingScrollPortSizeSet()) {
|
|
anchorRect.SizeTo(presContext->PresShell()->GetScrollPositionClampingScrollPortSize());
|
|
} else {
|
|
anchorRect.SizeTo(viewportFrame->GetSize());
|
|
}
|
|
} else {
|
|
// A display item directly attached to the viewport.
|
|
// For background-attachment:fixed items, the anchor point is always the
|
|
// top-left of the viewport currently.
|
|
viewportFrame = fixedFrame;
|
|
}
|
|
// The anchorRect top-left is always the viewport top-left.
|
|
anchorRect.MoveTo(viewportFrame->GetOffsetToCrossDoc(ReferenceFrame()));
|
|
|
|
nsLayoutUtils::SetFixedPositionLayerData(layer,
|
|
viewportFrame, anchorRect, fixedFrame, presContext, aContainerParameters);
|
|
|
|
return layer.forget();
|
|
}
|
|
|
|
ViewID
|
|
nsDisplayFixedPosition::GetScrollTargetId()
|
|
{
|
|
if (mContainerASR && !nsLayoutUtils::IsReallyFixedPos(mFrame)) {
|
|
return mContainerASR->GetViewId();
|
|
}
|
|
return nsLayoutUtils::ScrollIdForRootScrollFrame(mFrame->PresContext());
|
|
}
|
|
|
|
bool
|
|
nsDisplayFixedPosition::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
// We install this RAII scrolltarget tracker so that any
|
|
// nsDisplayCompositorHitTestInfo items inside this fixed-pos item (and that
|
|
// share the same ASR as this item) use the correct scroll target. That way
|
|
// attempts to scroll on those items will scroll the root scroll frame.
|
|
mozilla::wr::DisplayListBuilder::FixedPosScrollTargetTracker tracker(
|
|
aBuilder,
|
|
GetActiveScrolledRoot(),
|
|
GetScrollTargetId());
|
|
return nsDisplayOwnLayer::CreateWebRenderCommands(aBuilder, aResources, aSc,
|
|
aManager, aDisplayListBuilder);
|
|
}
|
|
|
|
bool
|
|
nsDisplayFixedPosition::UpdateScrollData(mozilla::layers::WebRenderScrollData* aData,
|
|
mozilla::layers::WebRenderLayerScrollData* aLayerData)
|
|
{
|
|
if (aLayerData) {
|
|
aLayerData->SetFixedPositionScrollContainerId(GetScrollTargetId());
|
|
}
|
|
return nsDisplayOwnLayer::UpdateScrollData(aData, aLayerData) | true;
|
|
}
|
|
|
|
void
|
|
nsDisplayFixedPosition::WriteDebugInfo(std::stringstream& aStream)
|
|
{
|
|
aStream << nsPrintfCString(" (containerASR %s) (scrolltarget %" PRIu64 ")",
|
|
ActiveScrolledRoot::ToString(mContainerASR).get(),
|
|
GetScrollTargetId()).get();
|
|
}
|
|
|
|
TableType
|
|
GetTableTypeFromFrame(nsIFrame* aFrame)
|
|
{
|
|
if (aFrame->IsTableFrame()) {
|
|
return TableType::TABLE;
|
|
}
|
|
|
|
if (aFrame->IsTableColFrame()) {
|
|
return TableType::TABLE_COL;
|
|
}
|
|
|
|
if (aFrame->IsTableColGroupFrame()) {
|
|
return TableType::TABLE_COL_GROUP;
|
|
}
|
|
|
|
if (aFrame->IsTableRowFrame()) {
|
|
return TableType::TABLE_ROW;
|
|
}
|
|
|
|
if (aFrame->IsTableRowGroupFrame()) {
|
|
return TableType::TABLE_ROW_GROUP;
|
|
}
|
|
|
|
if (aFrame->IsTableCellFrame()) {
|
|
return TableType::TABLE_CELL;
|
|
}
|
|
|
|
MOZ_ASSERT_UNREACHABLE("Invalid frame.");
|
|
return TableType::TABLE;
|
|
}
|
|
|
|
nsDisplayTableFixedPosition::nsDisplayTableFixedPosition(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame,
|
|
nsDisplayList* aList,
|
|
uint32_t aIndex,
|
|
nsIFrame* aAncestorFrame)
|
|
: nsDisplayFixedPosition(aBuilder, aFrame, aList, aIndex)
|
|
, mAncestorFrame(aAncestorFrame)
|
|
, mTableType(GetTableTypeFromFrame(aAncestorFrame))
|
|
{
|
|
if (aBuilder->IsRetainingDisplayList()) {
|
|
mAncestorFrame->AddDisplayItem(this);
|
|
}
|
|
}
|
|
|
|
/* static */ nsDisplayTableFixedPosition*
|
|
nsDisplayTableFixedPosition::CreateForFixedBackground(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame,
|
|
nsDisplayBackgroundImage* aImage,
|
|
uint32_t aIndex,
|
|
nsIFrame* aAncestorFrame)
|
|
{
|
|
nsDisplayList temp;
|
|
temp.AppendToTop(aImage);
|
|
|
|
return MakeDisplayItem<nsDisplayTableFixedPosition>(aBuilder, aFrame, &temp, aIndex + 1, aAncestorFrame);
|
|
}
|
|
|
|
nsDisplayStickyPosition::nsDisplayStickyPosition(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame,
|
|
nsDisplayList* aList,
|
|
const ActiveScrolledRoot* aActiveScrolledRoot,
|
|
const ActiveScrolledRoot* aContainerASR)
|
|
: nsDisplayOwnLayer(aBuilder, aFrame, aList, aActiveScrolledRoot)
|
|
, mContainerASR(aContainerASR)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayStickyPosition);
|
|
}
|
|
|
|
void
|
|
nsDisplayStickyPosition::SetClipChain(const DisplayItemClipChain* aClipChain,
|
|
bool aStore)
|
|
{
|
|
mClipChain = aClipChain;
|
|
mClip = nullptr;
|
|
|
|
MOZ_ASSERT(!mClip, "There should never be a clip on this item because no clip moves with it.");
|
|
|
|
if (aStore) {
|
|
mState.mClipChain = aClipChain;
|
|
mState.mClip = mClip;
|
|
}
|
|
}
|
|
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
nsDisplayStickyPosition::~nsDisplayStickyPosition() {
|
|
MOZ_COUNT_DTOR(nsDisplayStickyPosition);
|
|
}
|
|
#endif
|
|
|
|
already_AddRefed<Layer>
|
|
nsDisplayStickyPosition::BuildLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aContainerParameters) {
|
|
RefPtr<Layer> layer =
|
|
nsDisplayOwnLayer::BuildLayer(aBuilder, aManager, aContainerParameters);
|
|
|
|
StickyScrollContainer* stickyScrollContainer = StickyScrollContainer::
|
|
GetStickyScrollContainerForFrame(mFrame);
|
|
if (!stickyScrollContainer) {
|
|
return layer.forget();
|
|
}
|
|
|
|
nsIFrame* scrollFrame = do_QueryFrame(stickyScrollContainer->ScrollFrame());
|
|
nsPresContext* presContext = scrollFrame->PresContext();
|
|
|
|
// Sticky position frames whose scroll frame is the root scroll frame are
|
|
// reflowed into the scroll-port size if one has been set.
|
|
nsSize scrollFrameSize = scrollFrame->GetSize();
|
|
if (scrollFrame == presContext->PresShell()->GetRootScrollFrame() &&
|
|
presContext->PresShell()->IsScrollPositionClampingScrollPortSizeSet()) {
|
|
scrollFrameSize = presContext->PresShell()->
|
|
GetScrollPositionClampingScrollPortSize();
|
|
}
|
|
|
|
nsLayoutUtils::SetFixedPositionLayerData(layer, scrollFrame,
|
|
nsRect(scrollFrame->GetOffsetToCrossDoc(ReferenceFrame()), scrollFrameSize),
|
|
mFrame, presContext, aContainerParameters);
|
|
|
|
ViewID scrollId = nsLayoutUtils::FindOrCreateIDFor(
|
|
stickyScrollContainer->ScrollFrame()->GetScrolledFrame()->GetContent());
|
|
|
|
float factor = presContext->AppUnitsPerDevPixel();
|
|
nsRectAbsolute outer;
|
|
nsRectAbsolute inner;
|
|
stickyScrollContainer->GetScrollRanges(mFrame, &outer, &inner);
|
|
LayerRectAbsolute stickyOuter(NSAppUnitsToFloatPixels(outer.X(), factor) *
|
|
aContainerParameters.mXScale,
|
|
NSAppUnitsToFloatPixels(outer.Y(), factor) *
|
|
aContainerParameters.mYScale,
|
|
NSAppUnitsToFloatPixels(outer.XMost(), factor) *
|
|
aContainerParameters.mXScale,
|
|
NSAppUnitsToFloatPixels(outer.YMost(), factor) *
|
|
aContainerParameters.mYScale);
|
|
LayerRectAbsolute stickyInner(NSAppUnitsToFloatPixels(inner.X(), factor) *
|
|
aContainerParameters.mXScale,
|
|
NSAppUnitsToFloatPixels(inner.Y(), factor) *
|
|
aContainerParameters.mYScale,
|
|
NSAppUnitsToFloatPixels(inner.XMost(), factor) *
|
|
aContainerParameters.mXScale,
|
|
NSAppUnitsToFloatPixels(inner.YMost(), factor) *
|
|
aContainerParameters.mYScale);
|
|
layer->SetStickyPositionData(scrollId, stickyOuter, stickyInner);
|
|
|
|
return layer.forget();
|
|
}
|
|
|
|
// Returns the smallest distance from "0" to the range [min, max] where
|
|
// min <= max.
|
|
static nscoord DistanceToRange(nscoord min, nscoord max) {
|
|
MOZ_ASSERT(min <= max);
|
|
if (max < 0) {
|
|
return max;
|
|
}
|
|
if (min > 0) {
|
|
return min;
|
|
}
|
|
MOZ_ASSERT(min <= 0 && max >= 0);
|
|
return 0;
|
|
}
|
|
|
|
bool
|
|
nsDisplayStickyPosition::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
StickyScrollContainer* stickyScrollContainer = StickyScrollContainer::GetStickyScrollContainerForFrame(mFrame);
|
|
if (stickyScrollContainer) {
|
|
// If there's no ASR for the scrollframe that this sticky item is attached
|
|
// to, then don't create a WR sticky item for it either. Trying to do so
|
|
// will end in sadness because WR will interpret some coordinates as
|
|
// relative to the nearest enclosing scrollframe, which will correspond
|
|
// to the nearest ancestor ASR on the gecko side. That ASR will not be the
|
|
// same as the scrollframe this sticky item is actually supposed to be
|
|
// attached to, thus the sadness.
|
|
// Not sending WR the sticky item is ok, because the enclosing scrollframe
|
|
// will never be asynchronously scrolled. Instead we will always position
|
|
// the sticky items correctly on the gecko side and WR will never need to
|
|
// adjust their position itself.
|
|
if (!stickyScrollContainer->ScrollFrame()->IsMaybeAsynchronouslyScrolled()) {
|
|
stickyScrollContainer = nullptr;
|
|
}
|
|
}
|
|
|
|
if (stickyScrollContainer) {
|
|
float auPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
|
|
bool snap;
|
|
nsRect itemBounds = GetBounds(aDisplayListBuilder, &snap);
|
|
|
|
Maybe<float> topMargin;
|
|
Maybe<float> rightMargin;
|
|
Maybe<float> bottomMargin;
|
|
Maybe<float> leftMargin;
|
|
wr::StickyOffsetBounds vBounds = { 0.0, 0.0 };
|
|
wr::StickyOffsetBounds hBounds = { 0.0, 0.0 };
|
|
nsPoint appliedOffset;
|
|
|
|
nsRectAbsolute outer;
|
|
nsRectAbsolute inner;
|
|
stickyScrollContainer->GetScrollRanges(mFrame, &outer, &inner);
|
|
|
|
nsIFrame* scrollFrame = do_QueryFrame(stickyScrollContainer->ScrollFrame());
|
|
nsPoint offset = scrollFrame->GetOffsetToCrossDoc(ReferenceFrame());
|
|
|
|
// Adjust the scrollPort coordinates to be relative to the reference frame,
|
|
// so that it is in the same space as everything else.
|
|
nsRect scrollPort = stickyScrollContainer->ScrollFrame()->GetScrollPortRect();
|
|
scrollPort += offset;
|
|
|
|
// The following computations make more sense upon understanding the
|
|
// semantics of "inner" and "outer", which is explained in the comment on
|
|
// SetStickyPositionData in Layers.h.
|
|
|
|
if (outer.YMost() != inner.YMost()) {
|
|
// Question: How far will itemBounds.y be from the top of the scrollport
|
|
// when we have scrolled from the current scroll position of "0" to
|
|
// reach the range [inner.YMost(), outer.YMost()] where the item gets
|
|
// stuck?
|
|
// Answer: the current distance is "itemBounds.y - scrollPort.y". That
|
|
// needs to be adjusted by the distance to the range. If the distance is
|
|
// negative (i.e. inner.YMost() <= outer.YMost() < 0) then we would be
|
|
// scrolling upwards (decreasing scroll offset) to reach that range,
|
|
// which would increase itemBounds.y and make it farther away from the
|
|
// top of the scrollport. So in that case the adjustment is -distance.
|
|
// If the distance is positive (0 < inner.YMost() <= outer.YMost()) then
|
|
// we would be scrolling downwards, itemBounds.y would decrease, and we
|
|
// again need to adjust by -distance. If we are already in the range
|
|
// then no adjustment is needed and distance is 0 so again using
|
|
// -distance works.
|
|
nscoord distance = DistanceToRange(inner.YMost(), outer.YMost());
|
|
topMargin = Some(NSAppUnitsToFloatPixels(itemBounds.y - scrollPort.y - distance, auPerDevPixel));
|
|
// Question: What is the maximum positive ("downward") offset that WR
|
|
// will have to apply to this item in order to prevent the item from
|
|
// visually moving?
|
|
// Answer: Since the item is "sticky" in the range [inner.YMost(), outer.YMost()],
|
|
// the maximum offset will be the size of the range, which is
|
|
// outer.YMost() - inner.YMost().
|
|
vBounds.max = NSAppUnitsToFloatPixels(outer.YMost() - inner.YMost(), auPerDevPixel);
|
|
// Question: how much of an offset has layout already applied to the item?
|
|
// Answer: if we are
|
|
// (a) inside the sticky range (inner.YMost() < 0 <= outer.YMost()), or
|
|
// (b) past the sticky range (inner.YMost() < outer.YMost() < 0)
|
|
// then layout has already applied some offset to the position of the
|
|
// item. The amount of the adjustment is |0 - inner.YMost()| in case (a)
|
|
// and |outer.YMost() - inner.YMost()| in case (b).
|
|
if (inner.YMost() < 0) {
|
|
appliedOffset.y = std::min(0, outer.YMost()) - inner.YMost();
|
|
MOZ_ASSERT(appliedOffset.y > 0);
|
|
}
|
|
}
|
|
if (outer.Y() != inner.Y()) {
|
|
// Similar logic as in the previous section, but this time we care about
|
|
// the distance from itemBounds.YMost() to scrollPort.YMost().
|
|
nscoord distance = DistanceToRange(outer.Y(), inner.Y());
|
|
bottomMargin = Some(NSAppUnitsToFloatPixels(scrollPort.YMost() - itemBounds.YMost() + distance, auPerDevPixel));
|
|
// And here WR will be moving the item upwards rather than downwards so
|
|
// again things are inverted from the previous block.
|
|
vBounds.min = NSAppUnitsToFloatPixels(outer.Y() - inner.Y(), auPerDevPixel);
|
|
// We can't have appliedOffset be both positive and negative, and the top
|
|
// adjustment takes priority. So here we only update appliedOffset.y if
|
|
// it wasn't set by the top-sticky case above.
|
|
if (appliedOffset.y == 0 && inner.Y() > 0) {
|
|
appliedOffset.y = std::max(0, outer.Y()) - inner.Y();
|
|
MOZ_ASSERT(appliedOffset.y < 0);
|
|
}
|
|
}
|
|
// Same as above, but for the x-axis
|
|
if (outer.XMost() != inner.XMost()) {
|
|
nscoord distance = DistanceToRange(inner.XMost(), outer.XMost());
|
|
leftMargin = Some(NSAppUnitsToFloatPixels(itemBounds.x - scrollPort.x - distance, auPerDevPixel));
|
|
hBounds.max = NSAppUnitsToFloatPixels(outer.XMost() - inner.XMost(), auPerDevPixel);
|
|
if (inner.XMost() < 0) {
|
|
appliedOffset.x = std::min(0, outer.XMost()) - inner.XMost();
|
|
MOZ_ASSERT(appliedOffset.x > 0);
|
|
}
|
|
}
|
|
if (outer.X() != inner.X()) {
|
|
nscoord distance = DistanceToRange(outer.X(), inner.X());
|
|
rightMargin = Some(NSAppUnitsToFloatPixels(scrollPort.XMost() - itemBounds.XMost() + distance, auPerDevPixel));
|
|
hBounds.min = NSAppUnitsToFloatPixels(outer.X() - inner.X(), auPerDevPixel);
|
|
if (appliedOffset.x == 0 && inner.X() > 0) {
|
|
appliedOffset.x = std::max(0, outer.X()) - inner.X();
|
|
MOZ_ASSERT(appliedOffset.x < 0);
|
|
}
|
|
}
|
|
|
|
LayoutDeviceRect bounds = LayoutDeviceRect::FromAppUnits(itemBounds, auPerDevPixel);
|
|
wr::LayoutVector2D applied = {
|
|
NSAppUnitsToFloatPixels(appliedOffset.x, auPerDevPixel),
|
|
NSAppUnitsToFloatPixels(appliedOffset.y, auPerDevPixel)
|
|
};
|
|
wr::WrClipId id = aBuilder.DefineStickyFrame(wr::ToRoundedLayoutRect(bounds),
|
|
topMargin.ptrOr(nullptr), rightMargin.ptrOr(nullptr),
|
|
bottomMargin.ptrOr(nullptr), leftMargin.ptrOr(nullptr),
|
|
vBounds, hBounds, applied);
|
|
|
|
aBuilder.PushClip(id);
|
|
aManager->CommandBuilder().PushOverrideForASR(mContainerASR, Some(id));
|
|
}
|
|
|
|
nsDisplayOwnLayer::CreateWebRenderCommands(aBuilder, aResources, aSc,
|
|
aManager, aDisplayListBuilder);
|
|
|
|
if (stickyScrollContainer) {
|
|
aManager->CommandBuilder().PopOverrideForASR(mContainerASR);
|
|
aBuilder.PopClip();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
nsDisplayScrollInfoLayer::nsDisplayScrollInfoLayer(
|
|
nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aScrolledFrame,
|
|
nsIFrame* aScrollFrame)
|
|
: nsDisplayWrapList(aBuilder, aScrollFrame)
|
|
, mScrollFrame(aScrollFrame)
|
|
, mScrolledFrame(aScrolledFrame)
|
|
, mScrollParentId(aBuilder->GetCurrentScrollParentId())
|
|
{
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
MOZ_COUNT_CTOR(nsDisplayScrollInfoLayer);
|
|
#endif
|
|
}
|
|
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
nsDisplayScrollInfoLayer::~nsDisplayScrollInfoLayer()
|
|
{
|
|
MOZ_COUNT_DTOR(nsDisplayScrollInfoLayer);
|
|
}
|
|
#endif
|
|
|
|
already_AddRefed<Layer>
|
|
nsDisplayScrollInfoLayer::BuildLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aContainerParameters)
|
|
{
|
|
// In general for APZ with event-regions we no longer have a need for
|
|
// scrollinfo layers. However, in some cases, there might be content that
|
|
// cannot be layerized, and so needs to scroll synchronously. To handle those
|
|
// cases, we still want to generate scrollinfo layers.
|
|
|
|
return aManager->GetLayerBuilder()->
|
|
BuildContainerLayerFor(aBuilder, aManager, mFrame, this, &mList,
|
|
aContainerParameters, nullptr,
|
|
FrameLayerBuilder::CONTAINER_ALLOW_PULL_BACKGROUND_COLOR);
|
|
}
|
|
|
|
LayerState
|
|
nsDisplayScrollInfoLayer::GetLayerState(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters)
|
|
{
|
|
return LAYER_ACTIVE_EMPTY;
|
|
}
|
|
|
|
UniquePtr<ScrollMetadata>
|
|
nsDisplayScrollInfoLayer::ComputeScrollMetadata(LayerManager* aLayerManager,
|
|
const ContainerLayerParameters& aContainerParameters)
|
|
{
|
|
nsRect viewport = mScrollFrame->GetRect() -
|
|
mScrollFrame->GetPosition() +
|
|
mScrollFrame->GetOffsetToCrossDoc(ReferenceFrame());
|
|
|
|
ScrollMetadata metadata = nsLayoutUtils::ComputeScrollMetadata(
|
|
mScrolledFrame, mScrollFrame, mScrollFrame->GetContent(),
|
|
ReferenceFrame(), aLayerManager,
|
|
mScrollParentId, viewport, Nothing(), false, aContainerParameters);
|
|
metadata.GetMetrics().SetIsScrollInfoLayer(true);
|
|
|
|
return UniquePtr<ScrollMetadata>(new ScrollMetadata(metadata));
|
|
}
|
|
|
|
bool
|
|
nsDisplayScrollInfoLayer::UpdateScrollData(mozilla::layers::WebRenderScrollData* aData,
|
|
mozilla::layers::WebRenderLayerScrollData* aLayerData)
|
|
{
|
|
if (aLayerData) {
|
|
UniquePtr<ScrollMetadata> metadata =
|
|
ComputeScrollMetadata(aData->GetManager(), ContainerLayerParameters());
|
|
MOZ_ASSERT(aData);
|
|
MOZ_ASSERT(metadata);
|
|
aLayerData->AppendScrollMetadata(*aData, *metadata);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void
|
|
nsDisplayScrollInfoLayer::WriteDebugInfo(std::stringstream& aStream)
|
|
{
|
|
aStream << " (scrollframe " << mScrollFrame
|
|
<< " scrolledFrame " << mScrolledFrame << ")";
|
|
}
|
|
|
|
nsDisplayZoom::nsDisplayZoom(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList,
|
|
int32_t aAPD, int32_t aParentAPD,
|
|
nsDisplayOwnLayerFlags aFlags)
|
|
: nsDisplaySubDocument(aBuilder, aFrame, nullptr, aList, aFlags)
|
|
, mAPD(aAPD), mParentAPD(aParentAPD) {
|
|
MOZ_COUNT_CTOR(nsDisplayZoom);
|
|
}
|
|
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
nsDisplayZoom::~nsDisplayZoom() {
|
|
MOZ_COUNT_DTOR(nsDisplayZoom);
|
|
}
|
|
#endif
|
|
|
|
nsRect nsDisplayZoom::GetBounds(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
nsRect bounds = nsDisplaySubDocument::GetBounds(aBuilder, aSnap);
|
|
*aSnap = false;
|
|
return bounds.ScaleToOtherAppUnitsRoundOut(mAPD, mParentAPD);
|
|
}
|
|
|
|
void nsDisplayZoom::HitTest(nsDisplayListBuilder *aBuilder,
|
|
const nsRect& aRect,
|
|
HitTestState *aState,
|
|
nsTArray<nsIFrame*> *aOutFrames)
|
|
{
|
|
nsRect rect;
|
|
// A 1x1 rect indicates we are just hit testing a point, so pass down a 1x1
|
|
// rect as well instead of possibly rounding the width or height to zero.
|
|
if (aRect.width == 1 && aRect.height == 1) {
|
|
rect.MoveTo(aRect.TopLeft().ScaleToOtherAppUnits(mParentAPD, mAPD));
|
|
rect.width = rect.height = 1;
|
|
} else {
|
|
rect = aRect.ScaleToOtherAppUnitsRoundOut(mParentAPD, mAPD);
|
|
}
|
|
mList.HitTest(aBuilder, rect, aState, aOutFrames);
|
|
}
|
|
|
|
bool nsDisplayZoom::ComputeVisibility(nsDisplayListBuilder *aBuilder,
|
|
nsRegion *aVisibleRegion)
|
|
{
|
|
// Convert the passed in visible region to our appunits.
|
|
nsRegion visibleRegion;
|
|
// mVisibleRect has been clipped to GetClippedBounds
|
|
visibleRegion.And(*aVisibleRegion, GetPaintRect());
|
|
visibleRegion = visibleRegion.ScaleToOtherAppUnitsRoundOut(mParentAPD, mAPD);
|
|
nsRegion originalVisibleRegion = visibleRegion;
|
|
|
|
nsRect transformedVisibleRect =
|
|
GetPaintRect().ScaleToOtherAppUnitsRoundOut(mParentAPD, mAPD);
|
|
bool retval;
|
|
// If we are to generate a scrollable layer we call
|
|
// nsDisplaySubDocument::ComputeVisibility to make the necessary adjustments
|
|
// for ComputeVisibility, it does all it's calculations in the child APD.
|
|
bool usingDisplayPort = UseDisplayPortForViewport(aBuilder, mFrame);
|
|
if (!(mFlags & nsDisplayOwnLayerFlags::eGenerateScrollableLayer) || !usingDisplayPort) {
|
|
retval =
|
|
mList.ComputeVisibilityForSublist(aBuilder, &visibleRegion,
|
|
transformedVisibleRect);
|
|
} else {
|
|
retval =
|
|
nsDisplaySubDocument::ComputeVisibility(aBuilder, &visibleRegion);
|
|
}
|
|
|
|
nsRegion removed;
|
|
// removed = originalVisibleRegion - visibleRegion
|
|
removed.Sub(originalVisibleRegion, visibleRegion);
|
|
// Convert removed region to parent appunits.
|
|
removed = removed.ScaleToOtherAppUnitsRoundIn(mAPD, mParentAPD);
|
|
// aVisibleRegion = aVisibleRegion - removed (modulo any simplifications
|
|
// SubtractFromVisibleRegion does)
|
|
aBuilder->SubtractFromVisibleRegion(aVisibleRegion, removed);
|
|
|
|
return retval;
|
|
}
|
|
|
|
///////////////////////////////////////////////////
|
|
// nsDisplayTransform Implementation
|
|
//
|
|
|
|
// Write #define UNIFIED_CONTINUATIONS here and in
|
|
// TransformReferenceBox::Initialize to have the transform property try
|
|
// to transform content with continuations as one unified block instead of
|
|
// several smaller ones. This is currently disabled because it doesn't work
|
|
// correctly, since when the frames are initially being reflowed, their
|
|
// continuations all compute their bounding rects independently of each other
|
|
// and consequently get the wrong value. Write #define DEBUG_HIT here to have
|
|
// the nsDisplayTransform class dump out a bunch of information about hit
|
|
// detection.
|
|
#undef UNIFIED_CONTINUATIONS
|
|
#undef DEBUG_HIT
|
|
|
|
nsDisplayTransform::nsDisplayTransform(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame *aFrame, nsDisplayList *aList,
|
|
const nsRect& aChildrenBuildingRect,
|
|
ComputeTransformFunction aTransformGetter,
|
|
uint32_t aIndex)
|
|
: nsDisplayItem(aBuilder, aFrame)
|
|
, mStoredList(aBuilder, aFrame, aList)
|
|
, mTransformGetter(aTransformGetter)
|
|
, mAnimatedGeometryRootForChildren(mAnimatedGeometryRoot)
|
|
, mAnimatedGeometryRootForScrollMetadata(mAnimatedGeometryRoot)
|
|
, mChildrenBuildingRect(aChildrenBuildingRect)
|
|
, mIndex(aIndex)
|
|
, mNoExtendContext(false)
|
|
, mIsTransformSeparator(false)
|
|
, mTransformPreserves3DInited(false)
|
|
, mAllowAsyncAnimation(false)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayTransform);
|
|
MOZ_ASSERT(aFrame, "Must have a frame!");
|
|
Init(aBuilder);
|
|
}
|
|
|
|
void
|
|
nsDisplayTransform::SetReferenceFrameToAncestor(nsDisplayListBuilder* aBuilder)
|
|
{
|
|
if (mFrame == aBuilder->RootReferenceFrame()) {
|
|
return;
|
|
}
|
|
nsIFrame *outerFrame = nsLayoutUtils::GetCrossDocParentFrame(mFrame);
|
|
mReferenceFrame =
|
|
aBuilder->FindReferenceFrameFor(outerFrame);
|
|
mToReferenceFrame = mFrame->GetOffsetToCrossDoc(mReferenceFrame);
|
|
if (nsLayoutUtils::IsFixedPosFrameInDisplayPort(mFrame)) {
|
|
// This is an odd special case. If we are both IsFixedPosFrameInDisplayPort
|
|
// and transformed that we are our own AGR parent.
|
|
// We want our frame to be our AGR because FrameLayerBuilder uses our AGR to
|
|
// determine if we are inside a fixed pos subtree. If we use the outer AGR
|
|
// from outside the fixed pos subtree FLB can't tell that we are fixed pos.
|
|
mAnimatedGeometryRoot = mAnimatedGeometryRootForChildren;
|
|
} else if (mFrame->StyleDisplay()->mPosition == NS_STYLE_POSITION_STICKY &&
|
|
IsStickyFrameActive(aBuilder, mFrame, nullptr)) {
|
|
// Similar to the IsFixedPosFrameInDisplayPort case we are our own AGR.
|
|
// We are inside the sticky position, so our AGR is the sticky positioned
|
|
// frame, which is our AGR, not the parent AGR.
|
|
mAnimatedGeometryRoot = mAnimatedGeometryRootForChildren;
|
|
} else if (mAnimatedGeometryRoot->mParentAGR) {
|
|
mAnimatedGeometryRootForScrollMetadata = mAnimatedGeometryRoot->mParentAGR;
|
|
if (!MayBeAnimated(aBuilder)) {
|
|
// If we're an animated transform then we want the same AGR as our children
|
|
// so that FrameLayerBuilder knows that this layer moves with the transform
|
|
// and won't compute occlusions. If we're not animated then use our parent
|
|
// AGR so that inactive transform layers can go in the same PaintedLayer as
|
|
// surrounding content.
|
|
mAnimatedGeometryRoot = mAnimatedGeometryRoot->mParentAGR;
|
|
}
|
|
}
|
|
|
|
SetBuildingRect(aBuilder->GetVisibleRect() + mToReferenceFrame);
|
|
}
|
|
|
|
void
|
|
nsDisplayTransform::Init(nsDisplayListBuilder* aBuilder)
|
|
{
|
|
mHasBounds = false;
|
|
mStoredList.SetClipChain(nullptr, true);
|
|
mStoredList.SetBuildingRect(mChildrenBuildingRect);
|
|
}
|
|
|
|
nsDisplayTransform::nsDisplayTransform(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame *aFrame, nsDisplayList *aList,
|
|
const nsRect& aChildrenBuildingRect,
|
|
uint32_t aIndex,
|
|
bool aAllowAsyncAnimation)
|
|
: nsDisplayItem(aBuilder, aFrame)
|
|
, mStoredList(aBuilder, aFrame, aList)
|
|
, mTransformGetter(nullptr)
|
|
, mAnimatedGeometryRootForChildren(mAnimatedGeometryRoot)
|
|
, mAnimatedGeometryRootForScrollMetadata(mAnimatedGeometryRoot)
|
|
, mChildrenBuildingRect(aChildrenBuildingRect)
|
|
, mIndex(aIndex)
|
|
, mNoExtendContext(false)
|
|
, mIsTransformSeparator(false)
|
|
, mTransformPreserves3DInited(false)
|
|
, mAllowAsyncAnimation(aAllowAsyncAnimation)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayTransform);
|
|
MOZ_ASSERT(aFrame, "Must have a frame!");
|
|
SetReferenceFrameToAncestor(aBuilder);
|
|
Init(aBuilder);
|
|
UpdateBoundsFor3D(aBuilder);
|
|
}
|
|
|
|
nsDisplayTransform::nsDisplayTransform(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame *aFrame, nsDisplayList *aList,
|
|
const nsRect& aChildrenBuildingRect,
|
|
const Matrix4x4& aTransform,
|
|
uint32_t aIndex)
|
|
: nsDisplayItem(aBuilder, aFrame)
|
|
, mStoredList(aBuilder, aFrame, aList)
|
|
, mTransform(Some(aTransform))
|
|
, mTransformGetter(nullptr)
|
|
, mAnimatedGeometryRootForChildren(mAnimatedGeometryRoot)
|
|
, mAnimatedGeometryRootForScrollMetadata(mAnimatedGeometryRoot)
|
|
, mChildrenBuildingRect(aChildrenBuildingRect)
|
|
, mIndex(aIndex)
|
|
, mNoExtendContext(false)
|
|
, mIsTransformSeparator(true)
|
|
, mTransformPreserves3DInited(false)
|
|
, mAllowAsyncAnimation(false)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayTransform);
|
|
MOZ_ASSERT(aFrame, "Must have a frame!");
|
|
Init(aBuilder);
|
|
UpdateBoundsFor3D(aBuilder);
|
|
}
|
|
|
|
/* Returns the delta specified by the transform-origin property.
|
|
* This is a positive delta, meaning that it indicates the direction to move
|
|
* to get from (0, 0) of the frame to the transform origin. This function is
|
|
* called off the main thread.
|
|
*/
|
|
/* static */ Point3D
|
|
nsDisplayTransform::GetDeltaToTransformOrigin(const nsIFrame* aFrame,
|
|
float aAppUnitsPerPixel,
|
|
const nsRect* aBoundsOverride)
|
|
{
|
|
MOZ_ASSERT(aFrame, "Can't get delta for a null frame!");
|
|
MOZ_ASSERT(aFrame->IsTransformed() ||
|
|
aFrame->BackfaceIsHidden() ||
|
|
aFrame->Combines3DTransformWithAncestors(),
|
|
"Shouldn't get a delta for an untransformed frame!");
|
|
|
|
if (!aFrame->IsTransformed()) {
|
|
return Point3D();
|
|
}
|
|
|
|
/* For both of the coordinates, if the value of transform is a
|
|
* percentage, it's relative to the size of the frame. Otherwise, if it's
|
|
* a distance, it's already computed for us!
|
|
*/
|
|
const nsStyleDisplay* display = aFrame->StyleDisplay();
|
|
// We don't use aBoundsOverride for SVG since we need to account for
|
|
// refBox.X/Y(). This happens to work because ReflowSVG sets the frame's
|
|
// mRect before calling FinishAndStoreOverflow so we don't need the override.
|
|
TransformReferenceBox refBox;
|
|
if (aBoundsOverride &&
|
|
!(aFrame->GetStateBits() & NS_FRAME_SVG_LAYOUT)) {
|
|
refBox.Init(aBoundsOverride->Size());
|
|
} else {
|
|
refBox.Init(aFrame);
|
|
}
|
|
|
|
/* Allows us to access dimension getters by index. */
|
|
float transformOrigin[2];
|
|
TransformReferenceBox::DimensionGetter dimensionGetter[] =
|
|
{ &TransformReferenceBox::Width, &TransformReferenceBox::Height };
|
|
TransformReferenceBox::DimensionGetter offsetGetter[] =
|
|
{ &TransformReferenceBox::X, &TransformReferenceBox::Y };
|
|
|
|
for (uint8_t index = 0; index < 2; ++index) {
|
|
/* If the transform-origin specifies a percentage, take the percentage
|
|
* of the size of the box.
|
|
*/
|
|
const nsStyleCoord& originValue = display->mTransformOrigin[index];
|
|
if (originValue.GetUnit() == eStyleUnit_Calc) {
|
|
const nsStyleCoord::Calc *calc = originValue.GetCalcValue();
|
|
transformOrigin[index] =
|
|
NSAppUnitsToFloatPixels((refBox.*dimensionGetter[index])(), aAppUnitsPerPixel) *
|
|
calc->mPercent +
|
|
NSAppUnitsToFloatPixels(calc->mLength, aAppUnitsPerPixel);
|
|
} else if (originValue.GetUnit() == eStyleUnit_Percent) {
|
|
transformOrigin[index] =
|
|
NSAppUnitsToFloatPixels((refBox.*dimensionGetter[index])(), aAppUnitsPerPixel) *
|
|
originValue.GetPercentValue();
|
|
} else {
|
|
MOZ_ASSERT(originValue.GetUnit() == eStyleUnit_Coord,
|
|
"unexpected unit");
|
|
transformOrigin[index] =
|
|
NSAppUnitsToFloatPixels(originValue.GetCoordValue(),
|
|
aAppUnitsPerPixel);
|
|
}
|
|
|
|
if (aFrame->GetStateBits() & NS_FRAME_SVG_LAYOUT) {
|
|
// SVG frames (unlike other frames) have a reference box that can be (and
|
|
// typically is) offset from the TopLeft() of the frame. We need to
|
|
// account for that here.
|
|
transformOrigin[index] +=
|
|
NSAppUnitsToFloatPixels((refBox.*offsetGetter[index])(), aAppUnitsPerPixel);
|
|
}
|
|
}
|
|
|
|
return Point3D(transformOrigin[0], transformOrigin[1],
|
|
NSAppUnitsToFloatPixels(display->mTransformOrigin[2].GetCoordValue(),
|
|
aAppUnitsPerPixel));
|
|
}
|
|
|
|
/* static */ bool
|
|
nsDisplayTransform::ComputePerspectiveMatrix(const nsIFrame* aFrame,
|
|
float aAppUnitsPerPixel,
|
|
Matrix4x4& aOutMatrix)
|
|
{
|
|
MOZ_ASSERT(aFrame, "Can't get delta for a null frame!");
|
|
MOZ_ASSERT(aFrame->IsTransformed() ||
|
|
aFrame->BackfaceIsHidden() ||
|
|
aFrame->Combines3DTransformWithAncestors(),
|
|
"Shouldn't get a delta for an untransformed frame!");
|
|
MOZ_ASSERT(aOutMatrix.IsIdentity(), "Must have a blank output matrix");
|
|
|
|
if (!aFrame->IsTransformed()) {
|
|
return false;
|
|
}
|
|
|
|
/* Find our containing block, which is the element that provides the
|
|
* value for perspective we need to use
|
|
*/
|
|
|
|
//TODO: Is it possible that the cbFrame's bounds haven't been set correctly yet
|
|
// (similar to the aBoundsOverride case for GetResultingTransformMatrix)?
|
|
nsIFrame* cbFrame = aFrame->GetContainingBlock(nsIFrame::SKIP_SCROLLED_FRAME);
|
|
if (!cbFrame) {
|
|
return false;
|
|
}
|
|
|
|
/* Grab the values for perspective and perspective-origin (if present) */
|
|
|
|
const nsStyleDisplay* cbDisplay = cbFrame->StyleDisplay();
|
|
if (cbDisplay->mChildPerspective.GetUnit() != eStyleUnit_Coord) {
|
|
return false;
|
|
}
|
|
nscoord perspective = cbDisplay->mChildPerspective.GetCoordValue();
|
|
if (perspective < std::numeric_limits<Float>::epsilon()) {
|
|
return true;
|
|
}
|
|
|
|
TransformReferenceBox refBox(cbFrame);
|
|
|
|
Point perspectiveOrigin =
|
|
nsStyleTransformMatrix::Convert2DPosition(cbDisplay->mPerspectiveOrigin,
|
|
refBox, aAppUnitsPerPixel);
|
|
|
|
/* GetOffsetTo computes the offset required to move from 0,0 in cbFrame to 0,0
|
|
* in aFrame. Although we actually want the inverse of this, it's faster to
|
|
* compute this way.
|
|
*/
|
|
nsPoint frameToCbOffset = -aFrame->GetOffsetTo(cbFrame);
|
|
Point frameToCbGfxOffset(
|
|
NSAppUnitsToFloatPixels(frameToCbOffset.x, aAppUnitsPerPixel),
|
|
NSAppUnitsToFloatPixels(frameToCbOffset.y, aAppUnitsPerPixel));
|
|
|
|
/* Move the perspective origin to be relative to aFrame, instead of relative
|
|
* to the containing block which is how it was specified in the style system.
|
|
*/
|
|
perspectiveOrigin += frameToCbGfxOffset;
|
|
|
|
aOutMatrix._34 =
|
|
-1.0 / NSAppUnitsToFloatPixels(perspective, aAppUnitsPerPixel);
|
|
|
|
aOutMatrix.ChangeBasis(Point3D(perspectiveOrigin.x, perspectiveOrigin.y, 0));
|
|
return true;
|
|
}
|
|
|
|
nsDisplayTransform::FrameTransformProperties::FrameTransformProperties(const nsIFrame* aFrame,
|
|
float aAppUnitsPerPixel,
|
|
const nsRect* aBoundsOverride)
|
|
: mFrame(aFrame)
|
|
, mTransformList(aFrame->StyleDisplay()->GetCombinedTransform())
|
|
, mToTransformOrigin(GetDeltaToTransformOrigin(aFrame, aAppUnitsPerPixel, aBoundsOverride))
|
|
{
|
|
}
|
|
|
|
/* Wraps up the transform matrix in a change-of-basis matrix pair that
|
|
* translates from local coordinate space to transform coordinate space, then
|
|
* hands it back.
|
|
*/
|
|
Matrix4x4
|
|
nsDisplayTransform::GetResultingTransformMatrix(const FrameTransformProperties& aProperties,
|
|
const nsPoint& aOrigin,
|
|
float aAppUnitsPerPixel,
|
|
uint32_t aFlags,
|
|
const nsRect* aBoundsOverride)
|
|
{
|
|
return GetResultingTransformMatrixInternal(aProperties, aOrigin, aAppUnitsPerPixel,
|
|
aFlags, aBoundsOverride);
|
|
}
|
|
|
|
Matrix4x4
|
|
nsDisplayTransform::GetResultingTransformMatrix(const nsIFrame* aFrame,
|
|
const nsPoint& aOrigin,
|
|
float aAppUnitsPerPixel,
|
|
uint32_t aFlags,
|
|
const nsRect* aBoundsOverride)
|
|
{
|
|
FrameTransformProperties props(aFrame,
|
|
aAppUnitsPerPixel,
|
|
aBoundsOverride);
|
|
|
|
return GetResultingTransformMatrixInternal(props, aOrigin, aAppUnitsPerPixel,
|
|
aFlags, aBoundsOverride);
|
|
}
|
|
|
|
Matrix4x4
|
|
nsDisplayTransform::GetResultingTransformMatrixInternal(const FrameTransformProperties& aProperties,
|
|
const nsPoint& aOrigin,
|
|
float aAppUnitsPerPixel,
|
|
uint32_t aFlags,
|
|
const nsRect* aBoundsOverride)
|
|
{
|
|
const nsIFrame *frame = aProperties.mFrame;
|
|
NS_ASSERTION(frame || !(aFlags & INCLUDE_PERSPECTIVE), "Must have a frame to compute perspective!");
|
|
|
|
// Get the underlying transform matrix:
|
|
|
|
// We don't use aBoundsOverride for SVG since we need to account for
|
|
// refBox.X/Y(). This happens to work because ReflowSVG sets the frame's
|
|
// mRect before calling FinishAndStoreOverflow so we don't need the override.
|
|
TransformReferenceBox refBox;
|
|
if (aBoundsOverride &&
|
|
(!frame || !(frame->GetStateBits() & NS_FRAME_SVG_LAYOUT))) {
|
|
refBox.Init(aBoundsOverride->Size());
|
|
} else {
|
|
refBox.Init(frame);
|
|
}
|
|
|
|
/* Get the matrix, then change its basis to factor in the origin. */
|
|
bool dummyBool;
|
|
Matrix4x4 result;
|
|
// Call IsSVGTransformed() regardless of the value of
|
|
// disp->mSpecifiedTransform, since we still need any
|
|
// parentsChildrenOnlyTransform.
|
|
Matrix svgTransform, parentsChildrenOnlyTransform;
|
|
bool hasSVGTransforms =
|
|
frame && frame->IsSVGTransformed(&svgTransform,
|
|
&parentsChildrenOnlyTransform);
|
|
/* Transformed frames always have a transform, or are preserving 3d (and might still have perspective!) */
|
|
if (aProperties.mTransformList) {
|
|
result = nsStyleTransformMatrix::ReadTransforms(aProperties.mTransformList->mHead,
|
|
refBox, aAppUnitsPerPixel,
|
|
&dummyBool);
|
|
} else if (hasSVGTransforms) {
|
|
// Correct the translation components for zoom:
|
|
float pixelsPerCSSPx = frame->PresContext()->AppUnitsPerCSSPixel() /
|
|
aAppUnitsPerPixel;
|
|
svgTransform._31 *= pixelsPerCSSPx;
|
|
svgTransform._32 *= pixelsPerCSSPx;
|
|
result = Matrix4x4::From2D(svgTransform);
|
|
}
|
|
|
|
// Apply any translation due to 'transform-origin' and/or 'transform-box':
|
|
result.ChangeBasis(aProperties.mToTransformOrigin);
|
|
|
|
// See the comment for nsSVGContainerFrame::HasChildrenOnlyTransform for
|
|
// an explanation of what children-only transforms are.
|
|
bool parentHasChildrenOnlyTransform =
|
|
hasSVGTransforms && !parentsChildrenOnlyTransform.IsIdentity();
|
|
|
|
if (parentHasChildrenOnlyTransform) {
|
|
float pixelsPerCSSPx =
|
|
frame->PresContext()->AppUnitsPerCSSPixel() / aAppUnitsPerPixel;
|
|
parentsChildrenOnlyTransform._31 *= pixelsPerCSSPx;
|
|
parentsChildrenOnlyTransform._32 *= pixelsPerCSSPx;
|
|
|
|
Point3D frameOffset(
|
|
NSAppUnitsToFloatPixels(-frame->GetPosition().x, aAppUnitsPerPixel),
|
|
NSAppUnitsToFloatPixels(-frame->GetPosition().y, aAppUnitsPerPixel),
|
|
0);
|
|
Matrix4x4 parentsChildrenOnlyTransform3D =
|
|
Matrix4x4::From2D(parentsChildrenOnlyTransform).ChangeBasis(frameOffset);
|
|
|
|
result *= parentsChildrenOnlyTransform3D;
|
|
}
|
|
|
|
Matrix4x4 perspectiveMatrix;
|
|
bool hasPerspective = aFlags & INCLUDE_PERSPECTIVE;
|
|
if (hasPerspective) {
|
|
if (ComputePerspectiveMatrix(frame, aAppUnitsPerPixel, perspectiveMatrix)) {
|
|
result *= perspectiveMatrix;
|
|
}
|
|
}
|
|
|
|
if ((aFlags & INCLUDE_PRESERVE3D_ANCESTORS) &&
|
|
frame && frame->Combines3DTransformWithAncestors()) {
|
|
// Include the transform set on our parent
|
|
nsIFrame* parentFrame = frame->GetInFlowParent();
|
|
NS_ASSERTION(parentFrame && parentFrame->IsTransformed() &&
|
|
parentFrame->Extend3DContext(),
|
|
"Preserve3D mismatch!");
|
|
FrameTransformProperties props(parentFrame,
|
|
aAppUnitsPerPixel,
|
|
nullptr);
|
|
|
|
uint32_t flags = aFlags & (INCLUDE_PRESERVE3D_ANCESTORS|INCLUDE_PERSPECTIVE);
|
|
|
|
// If this frame isn't transformed (but we exist for backface-visibility),
|
|
// then we're not a reference frame so no offset to origin will be added.
|
|
// Otherwise we need to manually translate into our parent's coordinate
|
|
// space.
|
|
if (frame->IsTransformed()) {
|
|
nsLayoutUtils::PostTranslate(result, frame->GetPosition(), aAppUnitsPerPixel, !hasSVGTransforms);
|
|
}
|
|
Matrix4x4 parent =
|
|
GetResultingTransformMatrixInternal(props,
|
|
nsPoint(0, 0),
|
|
aAppUnitsPerPixel, flags,
|
|
nullptr);
|
|
result = result * parent;
|
|
}
|
|
|
|
if (aFlags & OFFSET_BY_ORIGIN) {
|
|
nsLayoutUtils::PostTranslate(result, aOrigin, aAppUnitsPerPixel, !hasSVGTransforms);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
bool
|
|
nsDisplayOpacity::CanUseAsyncAnimations(nsDisplayListBuilder* aBuilder)
|
|
{
|
|
if (ActiveLayerTracker::IsStyleAnimated(aBuilder, mFrame, eCSSProperty_opacity)) {
|
|
return true;
|
|
}
|
|
|
|
EffectCompositor::SetPerformanceWarning(
|
|
mFrame, eCSSProperty_opacity,
|
|
AnimationPerformanceWarning(
|
|
AnimationPerformanceWarning::Type::OpacityFrameInactive));
|
|
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
nsDisplayTransform::CanUseAsyncAnimations(nsDisplayListBuilder* aBuilder)
|
|
{
|
|
return mAllowAsyncAnimation;
|
|
}
|
|
|
|
/* static */ auto
|
|
nsDisplayTransform::ShouldPrerenderTransformedContent(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame,
|
|
nsRect* aDirtyRect) -> PrerenderDecision
|
|
{
|
|
// Elements whose transform has been modified recently, or which
|
|
// have a compositor-animated transform, can be prerendered. An element
|
|
// might have only just had its transform animated in which case
|
|
// the ActiveLayerManager may not have been notified yet.
|
|
if (!ActiveLayerTracker::IsStyleMaybeAnimated(aFrame, eCSSProperty_transform) &&
|
|
!EffectCompositor::HasAnimationsForCompositor(aFrame,
|
|
eCSSProperty_transform)) {
|
|
EffectCompositor::SetPerformanceWarning(
|
|
aFrame, eCSSProperty_transform,
|
|
AnimationPerformanceWarning(
|
|
AnimationPerformanceWarning::Type::TransformFrameInactive));
|
|
|
|
return NoPrerender;
|
|
}
|
|
|
|
// We should not allow prerender if any ancestor container element has
|
|
// mask/clip-path effects.
|
|
//
|
|
// With prerender and async transform animation, we do not need to restyle an
|
|
// animated element to respect position changes, since that transform is done
|
|
// by layer animation. As a result, the container element is not aware of
|
|
// position change of that containing element and loses the chance to update
|
|
// the content of mask/clip-path.
|
|
//
|
|
// Why do we need to update a mask? This is relative to how we generate a
|
|
// mask layer in ContainerState::SetupMaskLayerForCSSMask. While creating a
|
|
// mask layer, to reduce memory usage, we did not choose the size of the
|
|
// masked element as mask size. Instead, we read the union of bounds of all
|
|
// children display items by nsDisplayWrapList::GetBounds, which is smaller
|
|
// than or equal to the masked element's boundary, and use it as the position
|
|
// size of the mask layer. That union bounds is actually affected by the
|
|
// geometry of the animated element. To keep the content of mask up to date,
|
|
// forbidding of prerender is required.
|
|
for (nsIFrame* container = nsLayoutUtils::GetCrossDocParentFrame(aFrame);
|
|
container; container = nsLayoutUtils::GetCrossDocParentFrame(container)) {
|
|
const nsStyleSVGReset *svgReset = container->StyleSVGReset();
|
|
if (svgReset->HasMask() || svgReset->HasClipPath()) {
|
|
return NoPrerender;
|
|
}
|
|
}
|
|
|
|
// If the incoming dirty rect already contains the entire overflow area,
|
|
// we are already rendering the entire content.
|
|
nsRect overflow = aFrame->GetVisualOverflowRectRelativeToSelf();
|
|
if (aDirtyRect->Contains(overflow)) {
|
|
return FullPrerender;
|
|
}
|
|
|
|
float viewportRatioX = gfxPrefs::AnimationPrerenderViewportRatioLimitX();
|
|
float viewportRatioY = gfxPrefs::AnimationPrerenderViewportRatioLimitY();
|
|
uint32_t absoluteLimitX = gfxPrefs::AnimationPrerenderAbsoluteLimitX();
|
|
uint32_t absoluteLimitY = gfxPrefs::AnimationPrerenderAbsoluteLimitY();
|
|
nsSize refSize = aBuilder->RootReferenceFrame()->GetSize();
|
|
// Only prerender if the transformed frame's size is <= a multiple of the
|
|
// reference frame size (~viewport), and less than an absolute limit.
|
|
// Both the ratio and the absolute limit are configurable.
|
|
nsSize relativeLimit(nscoord(refSize.width * viewportRatioX),
|
|
nscoord(refSize.height * viewportRatioY));
|
|
nsSize absoluteLimit(aFrame->PresContext()->DevPixelsToAppUnits(absoluteLimitX),
|
|
aFrame->PresContext()->DevPixelsToAppUnits(absoluteLimitY));
|
|
nsSize maxSize = Min(relativeLimit, absoluteLimit);
|
|
|
|
const auto transform = nsLayoutUtils::GetTransformToAncestor(aFrame,
|
|
nsLayoutUtils::GetDisplayRootFrame(aFrame));
|
|
const gfxRect transformedBounds = transform.TransformAndClipBounds(
|
|
gfxRect(overflow.x, overflow.y, overflow.width, overflow.height),
|
|
gfxRect::MaxIntRect());
|
|
const nsSize frameSize = nsSize(transformedBounds.width, transformedBounds.height);
|
|
|
|
uint64_t maxLimitArea = uint64_t(maxSize.width) * maxSize.height;
|
|
uint64_t frameArea = uint64_t(frameSize.width) * frameSize.height;
|
|
if (frameArea <= maxLimitArea && frameSize <= absoluteLimit) {
|
|
*aDirtyRect = overflow;
|
|
return FullPrerender;
|
|
} else if (gfxPrefs::PartiallyPrerenderAnimatedContent()) {
|
|
*aDirtyRect = nsLayoutUtils::ComputePartialPrerenderArea(*aDirtyRect, overflow, maxSize);
|
|
return PartialPrerender;
|
|
}
|
|
|
|
if (frameArea > maxLimitArea) {
|
|
uint64_t appUnitsPerPixel = nsPresContext::AppUnitsPerCSSPixel();
|
|
EffectCompositor::SetPerformanceWarning(
|
|
aFrame, eCSSProperty_transform,
|
|
AnimationPerformanceWarning(
|
|
AnimationPerformanceWarning::Type::ContentTooLargeArea,
|
|
{
|
|
int(frameArea / (appUnitsPerPixel * appUnitsPerPixel)),
|
|
int(maxLimitArea / (appUnitsPerPixel * appUnitsPerPixel)),
|
|
}));
|
|
} else {
|
|
EffectCompositor::SetPerformanceWarning(
|
|
aFrame, eCSSProperty_transform,
|
|
AnimationPerformanceWarning(
|
|
AnimationPerformanceWarning::Type::ContentTooLarge,
|
|
{
|
|
nsPresContext::AppUnitsToIntCSSPixels(frameSize.width),
|
|
nsPresContext::AppUnitsToIntCSSPixels(frameSize.height),
|
|
nsPresContext::AppUnitsToIntCSSPixels(relativeLimit.width),
|
|
nsPresContext::AppUnitsToIntCSSPixels(relativeLimit.height),
|
|
nsPresContext::AppUnitsToIntCSSPixels(absoluteLimit.width),
|
|
nsPresContext::AppUnitsToIntCSSPixels(absoluteLimit.height),
|
|
}));
|
|
}
|
|
|
|
return NoPrerender;
|
|
}
|
|
|
|
/* If the matrix is singular, or a hidden backface is shown, the frame won't be visible or hit. */
|
|
static bool IsFrameVisible(nsIFrame* aFrame, const Matrix4x4& aMatrix)
|
|
{
|
|
if (aMatrix.IsSingular()) {
|
|
return false;
|
|
}
|
|
if (aFrame->BackfaceIsHidden() && aMatrix.IsBackfaceVisible()) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
const Matrix4x4Flagged&
|
|
nsDisplayTransform::GetTransform() const
|
|
{
|
|
if (mTransform) {
|
|
return *mTransform;
|
|
}
|
|
|
|
float scale = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
|
|
if (mTransformGetter) {
|
|
mTransform.emplace(mTransformGetter(mFrame, scale));
|
|
Point3D newOrigin =
|
|
Point3D(NSAppUnitsToFloatPixels(mToReferenceFrame.x, scale),
|
|
NSAppUnitsToFloatPixels(mToReferenceFrame.y, scale),
|
|
0.0f);
|
|
mTransform->ChangeBasis(newOrigin.x, newOrigin.y, newOrigin.z);
|
|
} else if (!mIsTransformSeparator) {
|
|
DebugOnly<bool> isReference =
|
|
mFrame->IsTransformed() ||
|
|
mFrame->Combines3DTransformWithAncestors() || mFrame->Extend3DContext();
|
|
MOZ_ASSERT(isReference);
|
|
mTransform.emplace(
|
|
GetResultingTransformMatrix(mFrame, ToReferenceFrame(),
|
|
scale, INCLUDE_PERSPECTIVE|OFFSET_BY_ORIGIN));
|
|
} else {
|
|
// Use identity matrix
|
|
mTransform.emplace();
|
|
}
|
|
|
|
return *mTransform;
|
|
}
|
|
|
|
const Matrix4x4Flagged&
|
|
nsDisplayTransform::GetInverseTransform() const
|
|
{
|
|
if (mInverseTransform) {
|
|
return *mInverseTransform;
|
|
}
|
|
|
|
MOZ_ASSERT(!GetTransform().IsSingular());
|
|
|
|
mInverseTransform.emplace(GetTransform().Inverse());
|
|
|
|
return *mInverseTransform;
|
|
}
|
|
|
|
Matrix4x4
|
|
nsDisplayTransform::GetTransformForRendering(LayoutDevicePoint* aOutOrigin)
|
|
{
|
|
if (!mFrame->HasPerspective() || mTransformGetter || mIsTransformSeparator) {
|
|
if (!mTransformGetter && !mIsTransformSeparator && aOutOrigin) {
|
|
// If aOutOrigin is provided, put the offset to origin into it, because
|
|
// we need to keep it separate for webrender. The combination of
|
|
// *aOutOrigin and the returned matrix here should always be equivalent
|
|
// to what GetTransform() would have returned.
|
|
float scale = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
*aOutOrigin = LayoutDevicePoint::FromAppUnits(ToReferenceFrame(), scale);
|
|
return GetResultingTransformMatrix(mFrame, nsPoint(0, 0), scale, INCLUDE_PERSPECTIVE);
|
|
}
|
|
return GetTransform().GetMatrix();
|
|
}
|
|
MOZ_ASSERT(!mTransformGetter);
|
|
|
|
float scale = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
// Don't include perspective transform, or the offset to origin, since
|
|
// nsDisplayPerspective will handle both of those.
|
|
return GetResultingTransformMatrix(mFrame, ToReferenceFrame(), scale, 0);
|
|
}
|
|
|
|
const Matrix4x4&
|
|
nsDisplayTransform::GetAccumulatedPreserved3DTransform(nsDisplayListBuilder* aBuilder)
|
|
{
|
|
MOZ_ASSERT(!mFrame->Extend3DContext() || IsLeafOf3DContext());
|
|
// XXX: should go back to fix mTransformGetter.
|
|
if (!mTransformPreserves3DInited) {
|
|
mTransformPreserves3DInited = true;
|
|
if (!IsLeafOf3DContext()) {
|
|
mTransformPreserves3D = GetTransform().GetMatrix();
|
|
return mTransformPreserves3D;
|
|
}
|
|
|
|
const nsIFrame* establisher; // Establisher of the 3D rendering context.
|
|
for (establisher = mFrame;
|
|
establisher && establisher->Combines3DTransformWithAncestors();
|
|
establisher = establisher->GetInFlowParent()) {
|
|
}
|
|
const nsIFrame* establisherReference =
|
|
aBuilder->FindReferenceFrameFor(nsLayoutUtils::GetCrossDocParentFrame(establisher));
|
|
|
|
nsPoint offset = establisher->GetOffsetToCrossDoc(establisherReference);
|
|
float scale = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
uint32_t flags = INCLUDE_PRESERVE3D_ANCESTORS|INCLUDE_PERSPECTIVE|OFFSET_BY_ORIGIN;
|
|
mTransformPreserves3D =
|
|
GetResultingTransformMatrix(mFrame, offset, scale, flags);
|
|
}
|
|
return mTransformPreserves3D;
|
|
}
|
|
|
|
bool
|
|
nsDisplayTransform::ShouldBuildLayerEvenIfInvisible(nsDisplayListBuilder* aBuilder) const
|
|
{
|
|
// The visible rect of a Preserves-3D frame is just an intermediate
|
|
// result. It should always build a layer to make sure it is
|
|
// rendering correctly.
|
|
return MayBeAnimated(aBuilder) || mFrame->Combines3DTransformWithAncestors();
|
|
}
|
|
|
|
bool
|
|
nsDisplayTransform::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
// We want to make sure we don't pollute the transform property in the WR
|
|
// stacking context by including the position of this frame (relative to the
|
|
// parent reference frame). We need to keep those separate; the position of
|
|
// this frame goes into the stacking context bounds while the transform goes
|
|
// into the transform.
|
|
LayoutDevicePoint position;
|
|
Matrix4x4 newTransformMatrix = GetTransformForRendering(&position);
|
|
|
|
gfx::Matrix4x4* transformForSC = &newTransformMatrix;
|
|
if (newTransformMatrix.IsIdentity()) {
|
|
// If the transform is an identity transform, strip it out so that WR
|
|
// doesn't turn this stacking context into a reference frame, as it
|
|
// affects positioning. Bug 1345577 tracks a better fix.
|
|
transformForSC = nullptr;
|
|
}
|
|
|
|
RefPtr<WebRenderAnimationData> animationData = aManager->CommandBuilder().CreateOrRecycleWebRenderUserData<WebRenderAnimationData>(this);
|
|
|
|
AnimationInfo& animationInfo = animationData->GetAnimationInfo();
|
|
AddAnimationsForProperty(Frame(), aDisplayListBuilder,
|
|
this, eCSSProperty_transform,
|
|
animationInfo, false, true);
|
|
animationInfo.StartPendingAnimations(aManager->GetAnimationReadyTime());
|
|
|
|
// Note that animationsId can be 0 (uninitialized in AnimationInfo) if there
|
|
// are no active animations.
|
|
uint64_t animationsId = animationInfo.GetCompositorAnimationsId();
|
|
wr::WrAnimationProperty prop;
|
|
if (!animationInfo.GetAnimations().IsEmpty()) {
|
|
prop.id = animationsId;
|
|
prop.effect_type = wr::WrAnimationType::Transform;
|
|
|
|
OpAddCompositorAnimations
|
|
anim(CompositorAnimations(animationInfo.GetAnimations(), animationsId));
|
|
aManager->WrBridge()->AddWebRenderParentCommand(anim);
|
|
aManager->AddActiveCompositorAnimationId(animationsId);
|
|
} else if (animationsId) {
|
|
aManager->AddCompositorAnimationsIdForDiscard(animationsId);
|
|
animationsId = 0;
|
|
}
|
|
|
|
nsTArray<mozilla::wr::WrFilterOp> filters;
|
|
Maybe<nsDisplayTransform*> deferredTransformItem;
|
|
if (!mFrame->HasPerspective()) {
|
|
// If it has perspective, we create a new scroll data via the
|
|
// UpdateScrollData call because that scenario is more complex. Otherwise
|
|
// we can just stash the transform on the StackingContextHelper and
|
|
// apply it to any scroll data that are created inside this
|
|
// nsDisplayTransform.
|
|
deferredTransformItem = Some(this);
|
|
}
|
|
|
|
// If it looks like we're animated, we should rasterize in local space
|
|
// (disabling subpixel-aa and global pixel snapping)
|
|
bool rasterizeLocally = ActiveLayerTracker::IsStyleMaybeAnimated(
|
|
Frame(), eCSSProperty_transform);
|
|
|
|
StackingContextHelper sc(aSc,
|
|
aBuilder,
|
|
filters,
|
|
LayoutDeviceRect(position, LayoutDeviceSize()),
|
|
&newTransformMatrix,
|
|
animationsId ? &prop : nullptr,
|
|
nullptr,
|
|
transformForSC,
|
|
nullptr,
|
|
gfx::CompositionOp::OP_OVER,
|
|
!BackfaceIsHidden(),
|
|
mFrame->Extend3DContext() && !mNoExtendContext,
|
|
deferredTransformItem,
|
|
nullptr,
|
|
rasterizeLocally);
|
|
|
|
return mStoredList.CreateWebRenderCommands(aBuilder, aResources, sc,
|
|
aManager, aDisplayListBuilder);
|
|
}
|
|
|
|
bool
|
|
nsDisplayTransform::UpdateScrollData(mozilla::layers::WebRenderScrollData* aData,
|
|
mozilla::layers::WebRenderLayerScrollData* aLayerData)
|
|
{
|
|
if (!mFrame->HasPerspective()) {
|
|
// This case is handled in CreateWebRenderCommands by stashing the transform
|
|
// on the stacking context.
|
|
return false;
|
|
}
|
|
if (aLayerData) {
|
|
aLayerData->SetTransform(GetTransform().GetMatrix());
|
|
aLayerData->SetTransformIsPerspective(true);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
already_AddRefed<Layer> nsDisplayTransform::BuildLayer(nsDisplayListBuilder *aBuilder,
|
|
LayerManager *aManager,
|
|
const ContainerLayerParameters& aContainerParameters)
|
|
{
|
|
// While generating a glyph mask, the transform vector of the root frame had
|
|
// been applied into the target context, so stop applying it again here.
|
|
const bool shouldSkipTransform =
|
|
(aBuilder->RootReferenceFrame() == mFrame) &&
|
|
(aBuilder->IsForGenerateGlyphMask() || aBuilder->IsForPaintingSelectionBG());
|
|
|
|
/* For frames without transform, it would not be removed for
|
|
* backface hidden here. But, it would be removed by the init
|
|
* function of nsDisplayTransform.
|
|
*/
|
|
const Matrix4x4 newTransformMatrix =
|
|
shouldSkipTransform ? Matrix4x4(): GetTransformForRendering();
|
|
|
|
uint32_t flags = FrameLayerBuilder::CONTAINER_ALLOW_PULL_BACKGROUND_COLOR;
|
|
RefPtr<ContainerLayer> container = aManager->GetLayerBuilder()->
|
|
BuildContainerLayerFor(aBuilder, aManager, mFrame, this, mStoredList.GetChildren(),
|
|
aContainerParameters, &newTransformMatrix, flags);
|
|
|
|
if (!container) {
|
|
return nullptr;
|
|
}
|
|
|
|
// Add the preserve-3d flag for this layer, BuildContainerLayerFor clears all flags,
|
|
// so we never need to explicitely unset this flag.
|
|
if (mFrame->Extend3DContext() && !mNoExtendContext) {
|
|
container->SetContentFlags(container->GetContentFlags() | Layer::CONTENT_EXTEND_3D_CONTEXT);
|
|
} else {
|
|
container->SetContentFlags(container->GetContentFlags() & ~Layer::CONTENT_EXTEND_3D_CONTEXT);
|
|
}
|
|
|
|
if (mAllowAsyncAnimation) {
|
|
mFrame->SetProperty(nsIFrame::RefusedAsyncAnimationProperty(), false);
|
|
}
|
|
|
|
nsDisplayListBuilder::AddAnimationsAndTransitionsToLayer(container, aBuilder,
|
|
this, mFrame,
|
|
eCSSProperty_transform);
|
|
if (mAllowAsyncAnimation && MayBeAnimated(aBuilder)) {
|
|
// Only allow async updates to the transform if we're an animated layer, since that's what
|
|
// triggers us to set the correct AGR in the constructor and makes sure FrameLayerBuilder
|
|
// won't compute occlusions for this layer.
|
|
container->SetUserData(nsIFrame::LayerIsPrerenderedDataKey(),
|
|
/*the value is irrelevant*/nullptr);
|
|
container->SetContentFlags(container->GetContentFlags() | Layer::CONTENT_MAY_CHANGE_TRANSFORM);
|
|
} else {
|
|
container->RemoveUserData(nsIFrame::LayerIsPrerenderedDataKey());
|
|
container->SetContentFlags(container->GetContentFlags() & ~Layer::CONTENT_MAY_CHANGE_TRANSFORM);
|
|
}
|
|
return container.forget();
|
|
}
|
|
|
|
bool
|
|
nsDisplayTransform::MayBeAnimated(nsDisplayListBuilder* aBuilder) const
|
|
{
|
|
// If EffectCompositor::HasAnimationsForCompositor() is true then we can
|
|
// completely bypass the main thread for this animation, so it is always
|
|
// worthwhile.
|
|
// For ActiveLayerTracker::IsStyleAnimated() cases the main thread is
|
|
// already involved so there is less to be gained.
|
|
// Therefore we check that the *post-transform* bounds of this item are
|
|
// big enough to justify an active layer.
|
|
if (EffectCompositor::HasAnimationsForCompositor(mFrame,
|
|
eCSSProperty_transform) ||
|
|
(ActiveLayerTracker::IsStyleAnimated(aBuilder,
|
|
mFrame,
|
|
eCSSProperty_transform) &&
|
|
!IsItemTooSmallForActiveLayer(mFrame))) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
nsDisplayItem::LayerState
|
|
nsDisplayTransform::GetLayerState(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters) {
|
|
// If the transform is 3d, the layer takes part in preserve-3d
|
|
// sorting, or the layer is a separator then we *always* want this
|
|
// to be an active layer.
|
|
// Checking HasPerspective() is needed to handle perspective value 0 when
|
|
// the transform is 2D.
|
|
if (!GetTransform().Is2D() || mFrame->Combines3DTransformWithAncestors() ||
|
|
mIsTransformSeparator || mFrame->HasPerspective()) {
|
|
return LAYER_ACTIVE_FORCE;
|
|
}
|
|
|
|
if (MayBeAnimated(aBuilder)) {
|
|
// Returns LAYER_ACTIVE_FORCE to avoid flatterning the layer for async
|
|
// animations.
|
|
return LAYER_ACTIVE_FORCE;
|
|
}
|
|
|
|
// Expect the child display items to have this frame as their animated
|
|
// geometry root (since it will be their reference frame). If they have a
|
|
// different animated geometry root, we'll make this an active layer so the
|
|
// animation can be accelerated.
|
|
return RequiredLayerStateForChildren(aBuilder, aManager, aParameters,
|
|
*mStoredList.GetChildren(), mAnimatedGeometryRootForChildren);
|
|
}
|
|
|
|
bool nsDisplayTransform::ComputeVisibility(nsDisplayListBuilder *aBuilder,
|
|
nsRegion *aVisibleRegion)
|
|
{
|
|
// nsDisplayTransform::GetBounds() returns an empty rect in nested 3d context.
|
|
// Calling mStoredList.RecomputeVisibility below for such transform causes the
|
|
// child display items to end up with empty visible rect.
|
|
// We avoid this by bailing out always if we are dealing with a 3d context.
|
|
if (mFrame->Extend3DContext() || mFrame->Combines3DTransformWithAncestors()) {
|
|
return true;
|
|
}
|
|
|
|
/* As we do this, we need to be sure to
|
|
* untransform the visible rect, since we want everything that's painting to
|
|
* think that it's painting in its original rectangular coordinate space.
|
|
* If we can't untransform, take the entire overflow rect */
|
|
nsRect untransformedVisibleRect;
|
|
if (!UntransformPaintRect(aBuilder, &untransformedVisibleRect))
|
|
{
|
|
untransformedVisibleRect = mFrame->GetVisualOverflowRectRelativeToSelf();
|
|
}
|
|
nsRegion untransformedVisible = untransformedVisibleRect;
|
|
// Call RecomputeVisiblity instead of ComputeVisibility since
|
|
// nsDisplayItem::ComputeVisibility should only be called from
|
|
// nsDisplayList::ComputeVisibility (which sets mVisibleRect on the item)
|
|
mStoredList.RecomputeVisibility(aBuilder, &untransformedVisible);
|
|
return true;
|
|
}
|
|
|
|
#ifdef DEBUG_HIT
|
|
#include <time.h>
|
|
#endif
|
|
|
|
/* HitTest does some fun stuff with matrix transforms to obtain the answer. */
|
|
void nsDisplayTransform::HitTest(nsDisplayListBuilder *aBuilder,
|
|
const nsRect& aRect,
|
|
HitTestState *aState,
|
|
nsTArray<nsIFrame*> *aOutFrames)
|
|
{
|
|
if (aState->mInPreserves3D) {
|
|
mStoredList.HitTest(aBuilder, aRect, aState, aOutFrames);
|
|
return;
|
|
}
|
|
|
|
/* Here's how this works:
|
|
* 1. Get the matrix. If it's singular, abort (clearly we didn't hit
|
|
* anything).
|
|
* 2. Invert the matrix.
|
|
* 3. Use it to transform the rect into the correct space.
|
|
* 4. Pass that rect down through to the list's version of HitTest.
|
|
*/
|
|
// GetTransform always operates in dev pixels.
|
|
float factor = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
Matrix4x4 matrix = GetAccumulatedPreserved3DTransform(aBuilder);
|
|
|
|
if (!IsFrameVisible(mFrame, matrix)) {
|
|
return;
|
|
}
|
|
|
|
/* We want to go from transformed-space to regular space.
|
|
* Thus we have to invert the matrix, which normally does
|
|
* the reverse operation (e.g. regular->transformed)
|
|
*/
|
|
|
|
/* Now, apply the transform and pass it down the channel. */
|
|
matrix.Invert();
|
|
nsRect resultingRect;
|
|
if (aRect.width == 1 && aRect.height == 1) {
|
|
// Magic width/height indicating we're hit testing a point, not a rect
|
|
Point4D point = matrix.ProjectPoint(Point(NSAppUnitsToFloatPixels(aRect.x, factor),
|
|
NSAppUnitsToFloatPixels(aRect.y, factor)));
|
|
if (!point.HasPositiveWCoord()) {
|
|
return;
|
|
}
|
|
|
|
Point point2d = point.As2DPoint();
|
|
|
|
resultingRect = nsRect(NSFloatPixelsToAppUnits(float(point2d.x), factor),
|
|
NSFloatPixelsToAppUnits(float(point2d.y), factor),
|
|
1, 1);
|
|
|
|
} else {
|
|
Rect originalRect(NSAppUnitsToFloatPixels(aRect.x, factor),
|
|
NSAppUnitsToFloatPixels(aRect.y, factor),
|
|
NSAppUnitsToFloatPixels(aRect.width, factor),
|
|
NSAppUnitsToFloatPixels(aRect.height, factor));
|
|
|
|
|
|
bool snap;
|
|
nsRect childBounds = mStoredList.GetBounds(aBuilder, &snap);
|
|
Rect childGfxBounds(NSAppUnitsToFloatPixels(childBounds.x, factor),
|
|
NSAppUnitsToFloatPixels(childBounds.y, factor),
|
|
NSAppUnitsToFloatPixels(childBounds.width, factor),
|
|
NSAppUnitsToFloatPixels(childBounds.height, factor));
|
|
|
|
Rect rect = matrix.ProjectRectBounds(originalRect, childGfxBounds);
|
|
|
|
resultingRect = nsRect(NSFloatPixelsToAppUnits(float(rect.X()), factor),
|
|
NSFloatPixelsToAppUnits(float(rect.Y()), factor),
|
|
NSFloatPixelsToAppUnits(float(rect.Width()), factor),
|
|
NSFloatPixelsToAppUnits(float(rect.Height()), factor));
|
|
}
|
|
|
|
if (resultingRect.IsEmpty()) {
|
|
return;
|
|
}
|
|
|
|
|
|
#ifdef DEBUG_HIT
|
|
printf("Frame: %p\n", dynamic_cast<void *>(mFrame));
|
|
printf(" Untransformed point: (%f, %f)\n", resultingRect.X(), resultingRect.Y());
|
|
uint32_t originalFrameCount = aOutFrames.Length();
|
|
#endif
|
|
|
|
mStoredList.HitTest(aBuilder, resultingRect, aState, aOutFrames);
|
|
|
|
#ifdef DEBUG_HIT
|
|
if (originalFrameCount != aOutFrames.Length())
|
|
printf(" Hit! Time: %f, first frame: %p\n", static_cast<double>(clock()),
|
|
dynamic_cast<void *>(aOutFrames.ElementAt(0)));
|
|
printf("=== end of hit test ===\n");
|
|
#endif
|
|
|
|
}
|
|
|
|
float
|
|
nsDisplayTransform::GetHitDepthAtPoint(nsDisplayListBuilder* aBuilder, const nsPoint& aPoint)
|
|
{
|
|
// GetTransform always operates in dev pixels.
|
|
float factor = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
Matrix4x4 matrix = GetAccumulatedPreserved3DTransform(aBuilder);
|
|
|
|
NS_ASSERTION(IsFrameVisible(mFrame, matrix),
|
|
"We can't have hit a frame that isn't visible!");
|
|
|
|
Matrix4x4 inverse = matrix;
|
|
inverse.Invert();
|
|
Point4D point = inverse.ProjectPoint(Point(NSAppUnitsToFloatPixels(aPoint.x, factor),
|
|
NSAppUnitsToFloatPixels(aPoint.y, factor)));
|
|
|
|
Point point2d = point.As2DPoint();
|
|
|
|
Point3D transformed = matrix.TransformPoint(Point3D(point2d.x, point2d.y, 0));
|
|
return transformed.z;
|
|
}
|
|
|
|
/* The bounding rectangle for the object is the overflow rectangle translated
|
|
* by the reference point.
|
|
*/
|
|
nsRect
|
|
nsDisplayTransform::GetBounds(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
*aSnap = false;
|
|
|
|
if (mHasBounds) {
|
|
return mBounds;
|
|
}
|
|
|
|
if (mFrame->Extend3DContext() && !mIsTransformSeparator) {
|
|
return nsRect();
|
|
}
|
|
|
|
nsRect untransformedBounds = mStoredList.GetBounds(aBuilder, aSnap);
|
|
// GetTransform always operates in dev pixels.
|
|
float factor = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
mBounds = nsLayoutUtils::MatrixTransformRect(untransformedBounds,
|
|
GetTransform(),
|
|
factor);
|
|
mHasBounds = true;
|
|
return mBounds;
|
|
}
|
|
|
|
void
|
|
nsDisplayTransform::ComputeBounds(nsDisplayListBuilder* aBuilder)
|
|
{
|
|
MOZ_ASSERT(mFrame->Extend3DContext() || IsLeafOf3DContext());
|
|
|
|
/* For some cases, the transform would make an empty bounds, but it
|
|
* may be turned back again to get a non-empty bounds. We should
|
|
* not depend on transforming bounds level by level.
|
|
*
|
|
* Here, it applies accumulated transforms on the leaf frames of the
|
|
* 3d rendering context, and track and accmulate bounds at
|
|
* nsDisplayListBuilder.
|
|
*/
|
|
nsDisplayListBuilder::AutoAccumulateTransform accTransform(aBuilder);
|
|
|
|
accTransform.Accumulate(GetTransform().GetMatrix());
|
|
|
|
if (!IsLeafOf3DContext()) {
|
|
// Do not dive into another 3D context.
|
|
mStoredList.DoUpdateBoundsPreserves3D(aBuilder);
|
|
}
|
|
|
|
/* For Preserves3D, it is bounds of only children as leaf frames.
|
|
* For non-leaf frames, their bounds are accumulated and kept at
|
|
* nsDisplayListBuilder.
|
|
*/
|
|
bool snap;
|
|
nsRect untransformedBounds = mStoredList.GetBounds(aBuilder, &snap);
|
|
// GetTransform always operates in dev pixels.
|
|
float factor = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
nsRect rect =
|
|
nsLayoutUtils::MatrixTransformRect(untransformedBounds,
|
|
accTransform.GetCurrentTransform(),
|
|
factor);
|
|
|
|
aBuilder->AccumulateRect(rect);
|
|
}
|
|
|
|
/* The transform is opaque iff the transform consists solely of scales and
|
|
* translations and if the underlying content is opaque. Thus if the transform
|
|
* is of the form
|
|
*
|
|
* |a c e|
|
|
* |b d f|
|
|
* |0 0 1|
|
|
*
|
|
* We need b and c to be zero.
|
|
*
|
|
* We also need to check whether the underlying opaque content completely fills
|
|
* our visible rect. We use UntransformRect which expands to the axis-aligned
|
|
* bounding rect, but that's OK since if
|
|
* mStoredList.GetVisibleRect().Contains(untransformedVisible), then it
|
|
* certainly contains the actual (non-axis-aligned) untransformed rect.
|
|
*/
|
|
nsRegion
|
|
nsDisplayTransform::GetOpaqueRegion(nsDisplayListBuilder *aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
*aSnap = false;
|
|
nsRect untransformedVisible;
|
|
if (!UntransformBuildingRect(aBuilder, &untransformedVisible)) {
|
|
return nsRegion();
|
|
}
|
|
|
|
const Matrix4x4Flagged& matrix = GetTransform();
|
|
|
|
nsRegion result;
|
|
Matrix matrix2d;
|
|
bool tmpSnap;
|
|
if (matrix.Is2D(&matrix2d) &&
|
|
matrix2d.PreservesAxisAlignedRectangles() &&
|
|
mStoredList.GetOpaqueRegion(aBuilder, &tmpSnap).Contains(untransformedVisible)) {
|
|
result = GetBuildingRect().Intersect(GetBounds(aBuilder, &tmpSnap));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/* TransformRect takes in as parameters a rectangle (in app space) and returns
|
|
* the smallest rectangle (in app space) containing the transformed image of
|
|
* that rectangle. That is, it takes the four corners of the rectangle,
|
|
* transforms them according to the matrix associated with the specified frame,
|
|
* then returns the smallest rectangle containing the four transformed points.
|
|
*
|
|
* @param aUntransformedBounds The rectangle (in app units) to transform.
|
|
* @param aFrame The frame whose transformation should be applied.
|
|
* @param aOrigin The delta from the frame origin to the coordinate space origin
|
|
* @param aBoundsOverride (optional) Force the frame bounds to be the
|
|
* specified bounds.
|
|
* @return The smallest rectangle containing the image of the transformed
|
|
* rectangle.
|
|
*/
|
|
nsRect nsDisplayTransform::TransformRect(const nsRect &aUntransformedBounds,
|
|
const nsIFrame* aFrame,
|
|
const nsRect* aBoundsOverride)
|
|
{
|
|
MOZ_ASSERT(aFrame, "Can't take the transform based on a null frame!");
|
|
|
|
float factor = aFrame->PresContext()->AppUnitsPerDevPixel();
|
|
|
|
uint32_t flags = INCLUDE_PERSPECTIVE|OFFSET_BY_ORIGIN|INCLUDE_PRESERVE3D_ANCESTORS;
|
|
return nsLayoutUtils::MatrixTransformRect
|
|
(aUntransformedBounds,
|
|
GetResultingTransformMatrix(aFrame, nsPoint(0, 0), factor, flags, aBoundsOverride),
|
|
factor);
|
|
}
|
|
|
|
bool nsDisplayTransform::UntransformRect(const nsRect &aTransformedBounds,
|
|
const nsRect &aChildBounds,
|
|
const nsIFrame* aFrame,
|
|
nsRect *aOutRect)
|
|
{
|
|
MOZ_ASSERT(aFrame, "Can't take the transform based on a null frame!");
|
|
|
|
float factor = aFrame->PresContext()->AppUnitsPerDevPixel();
|
|
|
|
uint32_t flags = INCLUDE_PERSPECTIVE|OFFSET_BY_ORIGIN|INCLUDE_PRESERVE3D_ANCESTORS;
|
|
|
|
Matrix4x4 transform = GetResultingTransformMatrix(aFrame, nsPoint(0, 0), factor, flags);
|
|
if (transform.IsSingular()) {
|
|
return false;
|
|
}
|
|
|
|
RectDouble result(NSAppUnitsToFloatPixels(aTransformedBounds.x, factor),
|
|
NSAppUnitsToFloatPixels(aTransformedBounds.y, factor),
|
|
NSAppUnitsToFloatPixels(aTransformedBounds.width, factor),
|
|
NSAppUnitsToFloatPixels(aTransformedBounds.height, factor));
|
|
|
|
RectDouble childGfxBounds(NSAppUnitsToFloatPixels(aChildBounds.x, factor),
|
|
NSAppUnitsToFloatPixels(aChildBounds.y, factor),
|
|
NSAppUnitsToFloatPixels(aChildBounds.width, factor),
|
|
NSAppUnitsToFloatPixels(aChildBounds.height, factor));
|
|
|
|
result = transform.Inverse().ProjectRectBounds(result, childGfxBounds);
|
|
*aOutRect = nsLayoutUtils::RoundGfxRectToAppRect(ThebesRect(result), factor);
|
|
return true;
|
|
}
|
|
|
|
bool nsDisplayTransform::UntransformRect(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aRect,
|
|
nsRect *aOutRect) const
|
|
{
|
|
if (GetTransform().IsSingular()) {
|
|
return false;
|
|
}
|
|
|
|
// GetTransform always operates in dev pixels.
|
|
float factor = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
RectDouble result(NSAppUnitsToFloatPixels(aRect.x, factor),
|
|
NSAppUnitsToFloatPixels(aRect.y, factor),
|
|
NSAppUnitsToFloatPixels(aRect.width, factor),
|
|
NSAppUnitsToFloatPixels(aRect.height, factor));
|
|
|
|
bool snap;
|
|
nsRect childBounds = mStoredList.GetBounds(aBuilder, &snap);
|
|
RectDouble childGfxBounds(NSAppUnitsToFloatPixels(childBounds.x, factor),
|
|
NSAppUnitsToFloatPixels(childBounds.y, factor),
|
|
NSAppUnitsToFloatPixels(childBounds.width, factor),
|
|
NSAppUnitsToFloatPixels(childBounds.height, factor));
|
|
|
|
/* We want to untransform the matrix, so invert the transformation first! */
|
|
result = GetInverseTransform().ProjectRectBounds(result, childGfxBounds);
|
|
|
|
*aOutRect = nsLayoutUtils::RoundGfxRectToAppRect(ThebesRect(result), factor);
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
nsDisplayTransform::WriteDebugInfo(std::stringstream& aStream)
|
|
{
|
|
AppendToString(aStream, GetTransform().GetMatrix());
|
|
if (IsTransformSeparator()) {
|
|
aStream << " transform-separator";
|
|
}
|
|
if (IsLeafOf3DContext()) {
|
|
aStream << " 3d-context-leaf";
|
|
}
|
|
if (mFrame->Extend3DContext()) {
|
|
aStream << " extends-3d-context";
|
|
}
|
|
if (mFrame->Combines3DTransformWithAncestors()) {
|
|
aStream << " combines-3d-with-ancestors";
|
|
}
|
|
}
|
|
|
|
nsDisplayPerspective::nsDisplayPerspective(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame,
|
|
nsDisplayList* aList)
|
|
: nsDisplayItem(aBuilder, aFrame)
|
|
, mList(aBuilder, aFrame, aList, true)
|
|
{
|
|
MOZ_ASSERT(mList.GetChildren()->Count() == 1);
|
|
MOZ_ASSERT(mList.GetChildren()->GetTop()->GetType() == DisplayItemType::TYPE_TRANSFORM);
|
|
mAnimatedGeometryRoot = aBuilder->FindAnimatedGeometryRootFor(mFrame->GetContainingBlock(nsIFrame::SKIP_SCROLLED_FRAME));
|
|
}
|
|
|
|
already_AddRefed<Layer>
|
|
nsDisplayPerspective::BuildLayer(nsDisplayListBuilder *aBuilder,
|
|
LayerManager *aManager,
|
|
const ContainerLayerParameters& aContainerParameters)
|
|
{
|
|
float appUnitsPerPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
|
|
Matrix4x4 perspectiveMatrix;
|
|
DebugOnly<bool> hasPerspective =
|
|
nsDisplayTransform::ComputePerspectiveMatrix(mFrame, appUnitsPerPixel,
|
|
perspectiveMatrix);
|
|
MOZ_ASSERT(hasPerspective, "Why did we create nsDisplayPerspective?");
|
|
|
|
/*
|
|
* ClipListToRange can remove our child after we were created.
|
|
*/
|
|
if (!mList.GetChildren()->GetTop()) {
|
|
return nullptr;
|
|
}
|
|
|
|
/*
|
|
* The resulting matrix is still in the coordinate space of the transformed
|
|
* frame. Append a translation to the reference frame coordinates.
|
|
*/
|
|
nsDisplayTransform* transform =
|
|
static_cast<nsDisplayTransform*>(mList.GetChildren()->GetTop());
|
|
|
|
Point3D newOrigin =
|
|
Point3D(NSAppUnitsToFloatPixels(transform->ToReferenceFrame().x, appUnitsPerPixel),
|
|
NSAppUnitsToFloatPixels(transform->ToReferenceFrame().y, appUnitsPerPixel),
|
|
0.0f);
|
|
Point3D roundedOrigin(NS_round(newOrigin.x),
|
|
NS_round(newOrigin.y),
|
|
0);
|
|
|
|
perspectiveMatrix.PostTranslate(roundedOrigin);
|
|
|
|
RefPtr<ContainerLayer> container = aManager->GetLayerBuilder()->
|
|
BuildContainerLayerFor(aBuilder, aManager, mFrame, this, mList.GetChildren(),
|
|
aContainerParameters, &perspectiveMatrix, 0);
|
|
|
|
if (!container) {
|
|
return nullptr;
|
|
}
|
|
|
|
// Sort of a lie, but we want to pretend that the perspective layer extends a 3d context
|
|
// so that it gets its transform combined with children. Might need a better name that reflects
|
|
// this use case and isn't specific to preserve-3d.
|
|
container->SetContentFlags(container->GetContentFlags() | Layer::CONTENT_EXTEND_3D_CONTEXT);
|
|
container->SetTransformIsPerspective(true);
|
|
|
|
return container.forget();
|
|
}
|
|
|
|
LayerState
|
|
nsDisplayPerspective::GetLayerState(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters)
|
|
{
|
|
return LAYER_ACTIVE_FORCE;
|
|
}
|
|
|
|
bool
|
|
nsDisplayPerspective::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
float appUnitsPerPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
Matrix4x4 perspectiveMatrix;
|
|
DebugOnly<bool> hasPerspective =
|
|
nsDisplayTransform::ComputePerspectiveMatrix(mFrame, appUnitsPerPixel,
|
|
perspectiveMatrix);
|
|
MOZ_ASSERT(hasPerspective, "Why did we create nsDisplayPerspective?");
|
|
|
|
/*
|
|
* ClipListToRange can remove our child after we were created.
|
|
*/
|
|
if (!mList.GetChildren()->GetTop()) {
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* The resulting matrix is still in the coordinate space of the transformed
|
|
* frame. Append a translation to the reference frame coordinates.
|
|
*/
|
|
nsDisplayTransform* transform =
|
|
static_cast<nsDisplayTransform*>(mList.GetChildren()->GetTop());
|
|
|
|
Point3D newOrigin =
|
|
Point3D(NSAppUnitsToFloatPixels(transform->ToReferenceFrame().x, appUnitsPerPixel),
|
|
NSAppUnitsToFloatPixels(transform->ToReferenceFrame().y, appUnitsPerPixel),
|
|
0.0f);
|
|
Point3D roundedOrigin(NS_round(newOrigin.x),
|
|
NS_round(newOrigin.y),
|
|
0);
|
|
|
|
gfx::Matrix4x4 transformForSC = gfx::Matrix4x4::Translation(roundedOrigin);
|
|
|
|
nsTArray<mozilla::wr::WrFilterOp> filters;
|
|
StackingContextHelper sc(aSc,
|
|
aBuilder,
|
|
filters,
|
|
LayoutDeviceRect(),
|
|
nullptr,
|
|
nullptr,
|
|
nullptr,
|
|
&transformForSC,
|
|
&perspectiveMatrix,
|
|
gfx::CompositionOp::OP_OVER,
|
|
!BackfaceIsHidden(),
|
|
true);
|
|
|
|
return mList.CreateWebRenderCommands(aBuilder, aResources, sc,
|
|
aManager, aDisplayListBuilder);
|
|
}
|
|
|
|
nsDisplayItemGeometry*
|
|
nsCharClipDisplayItem::AllocateGeometry(nsDisplayListBuilder* aBuilder)
|
|
{
|
|
return new nsCharClipGeometry(this, aBuilder);
|
|
}
|
|
|
|
void
|
|
nsCharClipDisplayItem::ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayItemGeometry* aGeometry,
|
|
nsRegion* aInvalidRegion) const
|
|
{
|
|
const nsCharClipGeometry* geometry = static_cast<const nsCharClipGeometry*>(aGeometry);
|
|
|
|
bool snap;
|
|
nsRect newRect = geometry->mBounds;
|
|
nsRect oldRect = GetBounds(aBuilder, &snap);
|
|
if (mVisIStartEdge != geometry->mVisIStartEdge ||
|
|
mVisIEndEdge != geometry->mVisIEndEdge ||
|
|
!oldRect.IsEqualInterior(newRect) ||
|
|
!geometry->mBorderRect.IsEqualInterior(GetBorderRect())) {
|
|
aInvalidRegion->Or(oldRect, newRect);
|
|
}
|
|
}
|
|
|
|
nsDisplaySVGEffects::nsDisplaySVGEffects(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList,
|
|
bool aHandleOpacity,
|
|
const ActiveScrolledRoot* aActiveScrolledRoot,
|
|
bool aClearClipChain)
|
|
: nsDisplayWrapList(aBuilder, aFrame, aList, aActiveScrolledRoot, aClearClipChain)
|
|
, mHandleOpacity(aHandleOpacity)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplaySVGEffects);
|
|
}
|
|
|
|
nsDisplaySVGEffects::nsDisplaySVGEffects(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList,
|
|
bool aHandleOpacity)
|
|
: nsDisplayWrapList(aBuilder, aFrame, aList)
|
|
, mHandleOpacity(aHandleOpacity)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplaySVGEffects);
|
|
}
|
|
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
nsDisplaySVGEffects::~nsDisplaySVGEffects()
|
|
{
|
|
MOZ_COUNT_DTOR(nsDisplaySVGEffects);
|
|
}
|
|
#endif
|
|
|
|
nsRegion nsDisplaySVGEffects::GetOpaqueRegion(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const
|
|
{
|
|
*aSnap = false;
|
|
return nsRegion();
|
|
}
|
|
|
|
void
|
|
nsDisplaySVGEffects::HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect,
|
|
HitTestState* aState, nsTArray<nsIFrame*> *aOutFrames)
|
|
{
|
|
nsPoint rectCenter(aRect.x + aRect.width / 2, aRect.y + aRect.height / 2);
|
|
if (nsSVGIntegrationUtils::HitTestFrameForEffects(mFrame,
|
|
rectCenter - ToReferenceFrame())) {
|
|
mList.HitTest(aBuilder, aRect, aState, aOutFrames);
|
|
}
|
|
}
|
|
|
|
gfxRect
|
|
nsDisplaySVGEffects::BBoxInUserSpace() const
|
|
{
|
|
return nsSVGUtils::GetBBox(mFrame);
|
|
}
|
|
|
|
gfxPoint
|
|
nsDisplaySVGEffects::UserSpaceOffset() const
|
|
{
|
|
return nsSVGUtils::FrameSpaceInCSSPxToUserSpaceOffset(mFrame);
|
|
}
|
|
|
|
void
|
|
nsDisplaySVGEffects::ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayItemGeometry* aGeometry,
|
|
nsRegion* aInvalidRegion) const
|
|
{
|
|
const nsDisplaySVGEffectGeometry* geometry =
|
|
static_cast<const nsDisplaySVGEffectGeometry*>(aGeometry);
|
|
bool snap;
|
|
nsRect bounds = GetBounds(aBuilder, &snap);
|
|
if (geometry->mFrameOffsetToReferenceFrame != ToReferenceFrame() ||
|
|
geometry->mUserSpaceOffset != UserSpaceOffset() ||
|
|
!geometry->mBBox.IsEqualInterior(BBoxInUserSpace())) {
|
|
// Filter and mask output can depend on the location of the frame's user
|
|
// space and on the frame's BBox. We need to invalidate if either of these
|
|
// change relative to the reference frame.
|
|
// Invalidations from our inactive layer manager are not enough to catch
|
|
// some of these cases because filters can produce output even if there's
|
|
// nothing in the filter input.
|
|
aInvalidRegion->Or(bounds, geometry->mBounds);
|
|
}
|
|
}
|
|
|
|
bool nsDisplaySVGEffects::ValidateSVGFrame()
|
|
{
|
|
const nsIContent* content = mFrame->GetContent();
|
|
bool hasSVGLayout = (mFrame->GetStateBits() & NS_FRAME_SVG_LAYOUT);
|
|
if (hasSVGLayout) {
|
|
nsSVGDisplayableFrame* svgFrame = do_QueryFrame(mFrame);
|
|
if (!svgFrame || !mFrame->GetContent()->IsSVGElement()) {
|
|
NS_ASSERTION(false, "why?");
|
|
return false;
|
|
}
|
|
if (!static_cast<const nsSVGElement*>(content)->HasValidDimensions()) {
|
|
return false; // The SVG spec says not to draw filters for this
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static IntRect
|
|
ComputeClipExtsInDeviceSpace(gfxContext& aCtx)
|
|
{
|
|
// Get the clip extents in device space.
|
|
gfxRect clippedFrameSurfaceRect =
|
|
aCtx.GetClipExtents(gfxContext::eDeviceSpace);
|
|
clippedFrameSurfaceRect.RoundOut();
|
|
|
|
IntRect result;
|
|
ToRect(clippedFrameSurfaceRect).ToIntRect(&result);
|
|
return mozilla::gfx::Factory::CheckSurfaceSize(result.Size()) ? result
|
|
: IntRect();
|
|
}
|
|
|
|
typedef nsSVGIntegrationUtils::PaintFramesParams PaintFramesParams;
|
|
|
|
static void
|
|
ComputeMaskGeometry(PaintFramesParams& aParams)
|
|
{
|
|
// Properties are added lazily and may have been removed by a restyle, so
|
|
// make sure all applicable ones are set again.
|
|
nsIFrame* firstFrame =
|
|
nsLayoutUtils::FirstContinuationOrIBSplitSibling(aParams.frame);
|
|
|
|
const nsStyleSVGReset *svgReset = firstFrame->StyleSVGReset();
|
|
|
|
SVGObserverUtils::EffectProperties effectProperties =
|
|
SVGObserverUtils::GetEffectProperties(firstFrame);
|
|
nsTArray<nsSVGMaskFrame *> maskFrames = effectProperties.GetMaskFrames();
|
|
|
|
if (maskFrames.Length() == 0) {
|
|
return;
|
|
}
|
|
|
|
gfxContext& ctx = aParams.ctx;
|
|
nsIFrame* frame = aParams.frame;
|
|
|
|
nsPoint offsetToUserSpace =
|
|
nsLayoutUtils::ComputeOffsetToUserSpace(aParams.builder, aParams.frame);
|
|
|
|
gfxPoint devPixelOffsetToUserSpace =
|
|
nsLayoutUtils::PointToGfxPoint(offsetToUserSpace,
|
|
frame->PresContext()->AppUnitsPerDevPixel());
|
|
|
|
gfxContextMatrixAutoSaveRestore matSR(&ctx);
|
|
ctx.SetMatrixDouble(ctx.CurrentMatrixDouble().PreTranslate(devPixelOffsetToUserSpace));
|
|
|
|
// Convert boaderArea and dirtyRect to user space.
|
|
int32_t appUnitsPerDevPixel = frame->PresContext()->AppUnitsPerDevPixel();
|
|
nsRect userSpaceBorderArea = aParams.borderArea - offsetToUserSpace;
|
|
nsRect userSpaceDirtyRect = aParams.dirtyRect - offsetToUserSpace;
|
|
|
|
// Union all mask layer rectangles in user space.
|
|
gfxRect maskInUserSpace;
|
|
for (size_t i = 0; i < maskFrames.Length() ; i++) {
|
|
nsSVGMaskFrame* maskFrame = maskFrames[i];
|
|
gfxRect currentMaskSurfaceRect;
|
|
|
|
if (maskFrame) {
|
|
currentMaskSurfaceRect = maskFrame->GetMaskArea(aParams.frame);
|
|
} else {
|
|
nsCSSRendering::ImageLayerClipState clipState;
|
|
nsCSSRendering::GetImageLayerClip(svgReset->mMask.mLayers[i],
|
|
frame,
|
|
*frame->StyleBorder(),
|
|
userSpaceBorderArea,
|
|
userSpaceDirtyRect,
|
|
false, /* aWillPaintBorder */
|
|
appUnitsPerDevPixel,
|
|
&clipState);
|
|
currentMaskSurfaceRect = clipState.mDirtyRectInDevPx;
|
|
}
|
|
|
|
maskInUserSpace = maskInUserSpace.Union(currentMaskSurfaceRect);
|
|
}
|
|
|
|
gfxContextAutoSaveRestore autoSR;
|
|
|
|
if (!maskInUserSpace.IsEmpty()) {
|
|
autoSR.SetContext(&ctx);
|
|
ctx.Clip(maskInUserSpace);
|
|
}
|
|
|
|
IntRect result = ComputeClipExtsInDeviceSpace(ctx);
|
|
aParams.maskRect = result;
|
|
}
|
|
|
|
nsDisplayMask::nsDisplayMask(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList,
|
|
bool aHandleOpacity,
|
|
const ActiveScrolledRoot* aActiveScrolledRoot)
|
|
: nsDisplaySVGEffects(aBuilder, aFrame, aList, aHandleOpacity, aActiveScrolledRoot, true)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayMask);
|
|
|
|
nsPresContext* presContext = mFrame->PresContext();
|
|
uint32_t flags = aBuilder->GetBackgroundPaintFlags() |
|
|
nsCSSRendering::PAINTBG_MASK_IMAGE;
|
|
const nsStyleSVGReset *svgReset = aFrame->StyleSVGReset();
|
|
NS_FOR_VISIBLE_IMAGE_LAYERS_BACK_TO_FRONT(i, svgReset->mMask) {
|
|
if (!svgReset->mMask.mLayers[i].mImage.IsResolved()) {
|
|
continue;
|
|
}
|
|
bool isTransformedFixed;
|
|
nsBackgroundLayerState state =
|
|
nsCSSRendering::PrepareImageLayer(presContext, aFrame, flags,
|
|
mFrame->GetRectRelativeToSelf(),
|
|
mFrame->GetRectRelativeToSelf(),
|
|
svgReset->mMask.mLayers[i],
|
|
&isTransformedFixed);
|
|
mDestRects.AppendElement(state.mDestArea);
|
|
}
|
|
}
|
|
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
nsDisplayMask::~nsDisplayMask()
|
|
{
|
|
MOZ_COUNT_DTOR(nsDisplayMask);
|
|
}
|
|
#endif
|
|
|
|
static bool
|
|
CanMergeDisplayMaskFrame(nsIFrame* aFrame)
|
|
{
|
|
// Do not merge items for box-decoration-break:clone elements,
|
|
// since each box should have its own mask in that case.
|
|
if (aFrame->StyleBorder()->mBoxDecorationBreak ==
|
|
mozilla::StyleBoxDecorationBreak::Clone) {
|
|
return false;
|
|
}
|
|
|
|
// Do not merge if either frame has a mask. Continuation frames should apply
|
|
// the mask independently (just like nsDisplayBackgroundImage).
|
|
if (aFrame->StyleSVGReset()->HasMask()) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
nsDisplayMask::CanMerge(const nsDisplayItem* aItem) const
|
|
{
|
|
// Items for the same content element should be merged into a single
|
|
// compositing group.
|
|
if (!HasSameTypeAndClip(aItem) || !HasSameContent(aItem)) {
|
|
return false;
|
|
}
|
|
|
|
return CanMergeDisplayMaskFrame(mFrame) &&
|
|
CanMergeDisplayMaskFrame(aItem->Frame());
|
|
}
|
|
|
|
already_AddRefed<Layer>
|
|
nsDisplayMask::BuildLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aContainerParameters)
|
|
{
|
|
if (!ValidateSVGFrame()) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (mFrame->StyleEffects()->mOpacity == 0.0f && mHandleOpacity) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsIFrame* firstFrame =
|
|
nsLayoutUtils::FirstContinuationOrIBSplitSibling(mFrame);
|
|
SVGObserverUtils::EffectProperties effectProperties =
|
|
SVGObserverUtils::GetEffectProperties(firstFrame);
|
|
|
|
if (effectProperties.HasInvalidClipPath() ||
|
|
effectProperties.HasInvalidMask()) {
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<ContainerLayer> container = aManager->GetLayerBuilder()->
|
|
BuildContainerLayerFor(aBuilder, aManager, mFrame, this, &mList,
|
|
aContainerParameters, nullptr);
|
|
|
|
return container.forget();
|
|
}
|
|
|
|
bool
|
|
nsDisplayMask::PaintMask(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aMaskContext)
|
|
{
|
|
MOZ_ASSERT(aMaskContext->GetDrawTarget()->GetFormat() == SurfaceFormat::A8);
|
|
|
|
imgDrawingParams imgParmas(aBuilder->ShouldSyncDecodeImages()
|
|
? imgIContainer::FLAG_SYNC_DECODE
|
|
: imgIContainer::FLAG_SYNC_DECODE_IF_FAST);
|
|
nsRect borderArea = nsRect(ToReferenceFrame(), mFrame->GetSize());
|
|
nsSVGIntegrationUtils::PaintFramesParams params(*aMaskContext,
|
|
mFrame, GetBuildingRect(),
|
|
borderArea, aBuilder,
|
|
nullptr,
|
|
mHandleOpacity, imgParmas);
|
|
ComputeMaskGeometry(params);
|
|
nsSVGIntegrationUtils::PaintMask(params);
|
|
|
|
nsDisplayMaskGeometry::UpdateDrawResult(this, imgParmas.result);
|
|
|
|
return imgParmas.result == mozilla::image::ImgDrawResult::SUCCESS;
|
|
}
|
|
|
|
LayerState
|
|
nsDisplayMask::GetLayerState(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters)
|
|
{
|
|
if (CanPaintOnMaskLayer(aManager)) {
|
|
LayerState result = RequiredLayerStateForChildren(aBuilder, aManager,
|
|
aParameters, mList, GetAnimatedGeometryRoot());
|
|
// When we're not active, FrameLayerBuilder will call PaintAsLayer()
|
|
// on us during painting. In that case we don't want a mask layer to
|
|
// be created, because PaintAsLayer() takes care of applying the mask.
|
|
// So we return LAYER_SVG_EFFECTS instead of LAYER_INACTIVE so that
|
|
// FrameLayerBuilder doesn't set a mask layer on our layer.
|
|
return result == LAYER_INACTIVE ? LAYER_SVG_EFFECTS : result;
|
|
}
|
|
|
|
return LAYER_SVG_EFFECTS;
|
|
}
|
|
|
|
bool nsDisplayMask::CanPaintOnMaskLayer(LayerManager* aManager)
|
|
{
|
|
if (!nsSVGIntegrationUtils::IsMaskResourceReady(mFrame)) {
|
|
return false;
|
|
}
|
|
|
|
if (gfxPrefs::DrawMaskLayer()) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool nsDisplayMask::ComputeVisibility(nsDisplayListBuilder* aBuilder,
|
|
nsRegion* aVisibleRegion)
|
|
{
|
|
// Our children may be made translucent or arbitrarily deformed so we should
|
|
// not allow them to subtract area from aVisibleRegion.
|
|
nsRegion childrenVisible(GetPaintRect());
|
|
nsRect r = GetPaintRect().Intersect(mList.GetBounds(aBuilder));
|
|
mList.ComputeVisibilityForSublist(aBuilder, &childrenVisible, r);
|
|
return true;
|
|
}
|
|
|
|
void
|
|
nsDisplayMask::ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayItemGeometry* aGeometry,
|
|
nsRegion* aInvalidRegion) const
|
|
{
|
|
nsDisplaySVGEffects::ComputeInvalidationRegion(aBuilder, aGeometry,
|
|
aInvalidRegion);
|
|
|
|
const nsDisplayMaskGeometry* geometry =
|
|
static_cast<const nsDisplayMaskGeometry*>(aGeometry);
|
|
bool snap;
|
|
nsRect bounds = GetBounds(aBuilder, &snap);
|
|
|
|
if (mFrame->StyleEffects()->mOpacity != geometry->mOpacity ||
|
|
mHandleOpacity != geometry->mHandleOpacity) {
|
|
aInvalidRegion->Or(*aInvalidRegion, bounds);
|
|
}
|
|
|
|
if (mDestRects.Length() != geometry->mDestRects.Length()) {
|
|
aInvalidRegion->Or(bounds, geometry->mBounds);
|
|
} else {
|
|
for (size_t i = 0; i < mDestRects.Length(); i++) {
|
|
if (!mDestRects[i].IsEqualInterior(geometry->mDestRects[i])) {
|
|
aInvalidRegion->Or(bounds, geometry->mBounds);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (aBuilder->ShouldSyncDecodeImages() &&
|
|
geometry->ShouldInvalidateToSyncDecodeImages()) {
|
|
const nsStyleSVGReset *svgReset = mFrame->StyleSVGReset();
|
|
NS_FOR_VISIBLE_IMAGE_LAYERS_BACK_TO_FRONT(i, svgReset->mMask) {
|
|
const nsStyleImage& image = svgReset->mMask.mLayers[i].mImage;
|
|
if (image.GetType() == eStyleImageType_Image ) {
|
|
aInvalidRegion->Or(*aInvalidRegion, bounds);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
nsDisplayMask::PaintAsLayer(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx,
|
|
LayerManager* aManager)
|
|
{
|
|
// Clip the drawing target by mVisibleRect, which contains the visible
|
|
// region of the target frame and its out-of-flow and inflow descendants.
|
|
gfxContext* context = aCtx;
|
|
|
|
Rect bounds =
|
|
NSRectToRect(GetPaintRect(), mFrame->PresContext()->AppUnitsPerDevPixel());
|
|
bounds.RoundOut();
|
|
context->Clip(bounds);
|
|
|
|
imgDrawingParams imgParams(aBuilder->ShouldSyncDecodeImages()
|
|
? imgIContainer::FLAG_SYNC_DECODE
|
|
: imgIContainer::FLAG_SYNC_DECODE_IF_FAST);
|
|
nsRect borderArea = nsRect(ToReferenceFrame(), mFrame->GetSize());
|
|
nsSVGIntegrationUtils::PaintFramesParams params(*aCtx,
|
|
mFrame, GetPaintRect(),
|
|
borderArea, aBuilder,
|
|
aManager,
|
|
mHandleOpacity, imgParams);
|
|
|
|
ComputeMaskGeometry(params);
|
|
|
|
nsSVGIntegrationUtils::PaintMaskAndClipPath(params);
|
|
|
|
context->PopClip();
|
|
|
|
nsDisplayMaskGeometry::UpdateDrawResult(this, imgParams.result);
|
|
}
|
|
|
|
bool
|
|
nsDisplayMask::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
bool snap;
|
|
float appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
nsRect displayBound = GetBounds(aDisplayListBuilder, &snap);
|
|
LayoutDeviceRect bounds = LayoutDeviceRect::FromAppUnits(displayBound, appUnitsPerDevPixel);
|
|
|
|
Maybe<wr::WrImageMask> mask = aManager->CommandBuilder().BuildWrMaskImage(this, aBuilder, aResources,
|
|
aSc, aDisplayListBuilder,
|
|
bounds);
|
|
Maybe<StackingContextHelper> layer;
|
|
const StackingContextHelper* sc = &aSc;
|
|
if (mask) {
|
|
auto layoutBounds = wr::ToRoundedLayoutRect(bounds);
|
|
wr::WrClipId clipId = aBuilder.DefineClip(Nothing(),
|
|
layoutBounds, nullptr, mask.ptr());
|
|
|
|
// Create a new stacking context to attach the mask to, ensuring the mask is
|
|
// applied to the aggregate, and not the individual elements.
|
|
|
|
// The stacking context shouldn't have any offset.
|
|
bounds.MoveTo(0, 0);
|
|
|
|
layer.emplace(aSc,
|
|
aBuilder,
|
|
/*aFilters: */ nsTArray<wr::WrFilterOp>(),
|
|
/*aBounds: */ bounds,
|
|
/*aBoundTransform: */ nullptr,
|
|
/*aAnimation: */ nullptr,
|
|
/*aOpacity: */ nullptr,
|
|
/*aTransform: */ nullptr,
|
|
/*aPerspective: */ nullptr,
|
|
/*aMixBlendMode: */ gfx::CompositionOp::OP_OVER,
|
|
/*aBackfaceVisible: */ true,
|
|
/*aIsPreserve3D: */ false,
|
|
/*aTransformForScrollData: */ Nothing(),
|
|
/*aClipNodeId: */ &clipId);
|
|
sc = layer.ptr();
|
|
aManager->CommandBuilder().PushOverrideForASR(GetActiveScrolledRoot(), Some(clipId));
|
|
}
|
|
|
|
nsDisplaySVGEffects::CreateWebRenderCommands(aBuilder, aResources, *sc, aManager, aDisplayListBuilder);
|
|
|
|
if (mask) {
|
|
aManager->CommandBuilder().PopOverrideForASR(GetActiveScrolledRoot());
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
Maybe<nsRect>
|
|
nsDisplayMask::GetClipWithRespectToASR(nsDisplayListBuilder* aBuilder,
|
|
const ActiveScrolledRoot* aASR) const
|
|
{
|
|
if (const DisplayItemClip* clip = DisplayItemClipChain::ClipForASR(GetClipChain(), aASR)) {
|
|
return Some(clip->GetClipRect());
|
|
}
|
|
// This item does not have a clip with respect to |aASR|. However, we
|
|
// might still have finite bounds with respect to |aASR|. Check our
|
|
// children.
|
|
nsDisplayList* childList = GetSameCoordinateSystemChildren();
|
|
if (childList) {
|
|
return Some(childList->GetClippedBoundsWithRespectToASR(aBuilder, aASR));
|
|
}
|
|
#ifdef DEBUG
|
|
if (!gfxPrefs::LayoutUseContainersForRootFrames()) {
|
|
MOZ_ASSERT(false, "item should have finite clip with respect to aASR");
|
|
}
|
|
#endif
|
|
return Nothing();
|
|
}
|
|
|
|
|
|
|
|
#ifdef MOZ_DUMP_PAINTING
|
|
void
|
|
nsDisplayMask::PrintEffects(nsACString& aTo)
|
|
{
|
|
nsIFrame* firstFrame =
|
|
nsLayoutUtils::FirstContinuationOrIBSplitSibling(mFrame);
|
|
SVGObserverUtils::EffectProperties effectProperties =
|
|
SVGObserverUtils::GetEffectProperties(firstFrame);
|
|
nsSVGClipPathFrame *clipPathFrame = effectProperties.GetClipPathFrame();
|
|
bool first = true;
|
|
aTo += " effects=(";
|
|
if (mFrame->StyleEffects()->mOpacity != 1.0f && mHandleOpacity) {
|
|
first = false;
|
|
aTo += nsPrintfCString("opacity(%f)", mFrame->StyleEffects()->mOpacity);
|
|
}
|
|
if (clipPathFrame) {
|
|
if (!first) {
|
|
aTo += ", ";
|
|
}
|
|
aTo += nsPrintfCString("clip(%s)", clipPathFrame->IsTrivial() ? "trivial" : "non-trivial");
|
|
first = false;
|
|
}
|
|
const nsStyleSVGReset *style = mFrame->StyleSVGReset();
|
|
if (style->HasClipPath() && !clipPathFrame) {
|
|
if (!first) {
|
|
aTo += ", ";
|
|
}
|
|
aTo += "clip(basic-shape)";
|
|
first = false;
|
|
}
|
|
|
|
nsTArray<nsSVGMaskFrame*> masks = effectProperties.GetMaskFrames();
|
|
if (!masks.IsEmpty() && masks[0]) {
|
|
if (!first) {
|
|
aTo += ", ";
|
|
}
|
|
aTo += "mask";
|
|
}
|
|
aTo += ")";
|
|
}
|
|
#endif
|
|
|
|
nsDisplayFilter::nsDisplayFilter(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList,
|
|
bool aHandleOpacity)
|
|
: nsDisplaySVGEffects(aBuilder, aFrame, aList, aHandleOpacity),
|
|
mEffectsBounds(aFrame->GetVisualOverflowRectRelativeToSelf())
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplayFilter);
|
|
}
|
|
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
nsDisplayFilter::~nsDisplayFilter()
|
|
{
|
|
MOZ_COUNT_DTOR(nsDisplayFilter);
|
|
}
|
|
#endif
|
|
|
|
already_AddRefed<Layer>
|
|
nsDisplayFilter::BuildLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aContainerParameters)
|
|
{
|
|
if (!ValidateSVGFrame()) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (mFrame->StyleEffects()->mOpacity == 0.0f && mHandleOpacity) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsIFrame* firstFrame =
|
|
nsLayoutUtils::FirstContinuationOrIBSplitSibling(mFrame);
|
|
SVGObserverUtils::EffectProperties effectProperties =
|
|
SVGObserverUtils::GetEffectProperties(firstFrame);
|
|
|
|
if (effectProperties.HasInvalidFilter()) {
|
|
return nullptr;
|
|
}
|
|
|
|
MOZ_ASSERT(effectProperties.mFilter && mFrame->StyleEffects()->HasFilters(),
|
|
"By getting here, we must have valid CSS filters.");
|
|
|
|
ContainerLayerParameters newContainerParameters = aContainerParameters;
|
|
newContainerParameters.mDisableSubpixelAntialiasingInDescendants = true;
|
|
|
|
RefPtr<ContainerLayer> container = aManager->GetLayerBuilder()->
|
|
BuildContainerLayerFor(aBuilder, aManager, mFrame, this, &mList,
|
|
newContainerParameters, nullptr);
|
|
return container.forget();
|
|
}
|
|
|
|
LayerState
|
|
nsDisplayFilter::GetLayerState(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters)
|
|
{
|
|
return LAYER_SVG_EFFECTS;
|
|
}
|
|
|
|
bool
|
|
nsDisplayFilter::ComputeVisibility(nsDisplayListBuilder* aBuilder,
|
|
nsRegion* aVisibleRegion)
|
|
{
|
|
nsPoint offset = ToReferenceFrame();
|
|
nsRect dirtyRect =
|
|
nsSVGIntegrationUtils::GetRequiredSourceForInvalidArea(mFrame,
|
|
GetPaintRect() - offset) +
|
|
offset;
|
|
|
|
// Our children may be made translucent or arbitrarily deformed so we should
|
|
// not allow them to subtract area from aVisibleRegion.
|
|
nsRegion childrenVisible(dirtyRect);
|
|
nsRect r = dirtyRect.Intersect(
|
|
mList.GetClippedBoundsWithRespectToASR(aBuilder, mActiveScrolledRoot));
|
|
mList.ComputeVisibilityForSublist(aBuilder, &childrenVisible, r);
|
|
return true;
|
|
}
|
|
|
|
void
|
|
nsDisplayFilter::ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayItemGeometry* aGeometry,
|
|
nsRegion* aInvalidRegion) const
|
|
{
|
|
nsDisplaySVGEffects::ComputeInvalidationRegion(aBuilder, aGeometry,
|
|
aInvalidRegion);
|
|
|
|
const nsDisplayFilterGeometry* geometry =
|
|
static_cast<const nsDisplayFilterGeometry*>(aGeometry);
|
|
|
|
if (aBuilder->ShouldSyncDecodeImages() &&
|
|
geometry->ShouldInvalidateToSyncDecodeImages()) {
|
|
bool snap;
|
|
nsRect bounds = GetBounds(aBuilder, &snap);
|
|
aInvalidRegion->Or(*aInvalidRegion, bounds);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsDisplayFilter::PaintAsLayer(nsDisplayListBuilder* aBuilder,
|
|
gfxContext* aCtx,
|
|
LayerManager* aManager)
|
|
{
|
|
imgDrawingParams imgParams(aBuilder->ShouldSyncDecodeImages()
|
|
? imgIContainer::FLAG_SYNC_DECODE
|
|
: imgIContainer::FLAG_SYNC_DECODE_IF_FAST);
|
|
nsRect borderArea = nsRect(ToReferenceFrame(), mFrame->GetSize());
|
|
nsSVGIntegrationUtils::PaintFramesParams params(*aCtx,
|
|
mFrame, GetPaintRect(),
|
|
borderArea, aBuilder,
|
|
aManager,
|
|
mHandleOpacity, imgParams);
|
|
nsSVGIntegrationUtils::PaintFilter(params);
|
|
nsDisplayFilterGeometry::UpdateDrawResult(this, imgParams.result);
|
|
}
|
|
|
|
static float
|
|
ClampStdDeviation(float aStdDeviation)
|
|
{
|
|
// Cap software blur radius for performance reasons.
|
|
return std::min(std::max(0.0f, aStdDeviation), 100.0f);
|
|
}
|
|
|
|
bool
|
|
nsDisplayFilter::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
if (mFrame->IsFrameOfType(nsIFrame::eSVG)) {
|
|
return false;
|
|
}
|
|
|
|
// Due to differences in the way that WebRender filters operate
|
|
// only the brightness and contrast filters use that path. We
|
|
// can gradually enable more filters as WebRender bugs are fixed.
|
|
nsTArray<mozilla::wr::WrFilterOp> wrFilters;
|
|
const nsTArray<nsStyleFilter>& filters = mFrame->StyleEffects()->mFilters;
|
|
for (const nsStyleFilter& filter : filters) {
|
|
switch (filter.GetType()) {
|
|
case NS_STYLE_FILTER_BRIGHTNESS:
|
|
case NS_STYLE_FILTER_CONTRAST:
|
|
case NS_STYLE_FILTER_GRAYSCALE:
|
|
case NS_STYLE_FILTER_INVERT:
|
|
case NS_STYLE_FILTER_OPACITY:
|
|
case NS_STYLE_FILTER_SATURATE:
|
|
case NS_STYLE_FILTER_SEPIA: {
|
|
mozilla::wr::WrFilterOp filterOp = {
|
|
wr::ToWrFilterOpType(filter.GetType()),
|
|
filter.GetFilterParameter().GetFactorOrPercentValue(),
|
|
};
|
|
wrFilters.AppendElement(filterOp);
|
|
break;
|
|
}
|
|
case NS_STYLE_FILTER_HUE_ROTATE: {
|
|
mozilla::wr::WrFilterOp filterOp = {
|
|
wr::ToWrFilterOpType(filter.GetType()),
|
|
(float)filter.GetFilterParameter().GetAngleValueInDegrees(),
|
|
};
|
|
wrFilters.AppendElement(filterOp);
|
|
break;
|
|
}
|
|
case NS_STYLE_FILTER_BLUR: {
|
|
float appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
mozilla::wr::WrFilterOp filterOp = {
|
|
wr::ToWrFilterOpType(filter.GetType()),
|
|
ClampStdDeviation(
|
|
NSAppUnitsToFloatPixels(
|
|
filter.GetFilterParameter().GetCoordValue(),
|
|
appUnitsPerDevPixel)),
|
|
};
|
|
wrFilters.AppendElement(filterOp);
|
|
break;
|
|
}
|
|
case NS_STYLE_FILTER_DROP_SHADOW: {
|
|
float appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
nsCSSShadowArray* shadows = filter.GetDropShadow();
|
|
if (!shadows || shadows->Length() != 1) {
|
|
NS_NOTREACHED("Exactly one drop shadow should have been parsed.");
|
|
return false;
|
|
}
|
|
|
|
nsCSSShadowItem* shadow = shadows->ShadowAt(0);
|
|
nscolor color = shadow->mColor;
|
|
if (!shadow->mHasColor) {
|
|
color = mFrame->StyleColor()->mColor;
|
|
}
|
|
|
|
mozilla::wr::WrFilterOp filterOp = {
|
|
wr::ToWrFilterOpType(filter.GetType()),
|
|
NSAppUnitsToFloatPixels(shadow->mRadius, appUnitsPerDevPixel),
|
|
{
|
|
NSAppUnitsToFloatPixels(shadow->mXOffset, appUnitsPerDevPixel),
|
|
NSAppUnitsToFloatPixels(shadow->mYOffset, appUnitsPerDevPixel),
|
|
},
|
|
{
|
|
NS_GET_R(color) / 255.0f,
|
|
NS_GET_G(color) / 255.0f,
|
|
NS_GET_B(color) / 255.0f,
|
|
NS_GET_A(color) / 255.0f,
|
|
}
|
|
};
|
|
|
|
wrFilters.AppendElement(filterOp);
|
|
break;
|
|
}
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
float opacity = mFrame->StyleEffects()->mOpacity;
|
|
StackingContextHelper sc(aSc, aBuilder, wrFilters, LayoutDeviceRect(), nullptr,
|
|
nullptr, opacity != 1.0f && mHandleOpacity ? &opacity : nullptr);
|
|
|
|
nsDisplaySVGEffects::CreateWebRenderCommands(aBuilder, aResources, sc, aManager, aDisplayListBuilder);
|
|
return true;
|
|
}
|
|
|
|
#ifdef MOZ_DUMP_PAINTING
|
|
void
|
|
nsDisplayFilter::PrintEffects(nsACString& aTo)
|
|
{
|
|
nsIFrame* firstFrame =
|
|
nsLayoutUtils::FirstContinuationOrIBSplitSibling(mFrame);
|
|
SVGObserverUtils::EffectProperties effectProperties =
|
|
SVGObserverUtils::GetEffectProperties(firstFrame);
|
|
bool first = true;
|
|
aTo += " effects=(";
|
|
if (mFrame->StyleEffects()->mOpacity != 1.0f && mHandleOpacity) {
|
|
first = false;
|
|
aTo += nsPrintfCString("opacity(%f)", mFrame->StyleEffects()->mOpacity);
|
|
}
|
|
if (effectProperties.HasValidFilter()) {
|
|
if (!first) {
|
|
aTo += ", ";
|
|
}
|
|
aTo += "filter";
|
|
}
|
|
aTo += ")";
|
|
}
|
|
#endif
|
|
|
|
nsDisplaySVGWrapper::nsDisplaySVGWrapper(nsDisplayListBuilder* aBuilder,
|
|
nsIFrame* aFrame, nsDisplayList* aList)
|
|
: nsDisplayWrapList(aBuilder, aFrame, aList)
|
|
{
|
|
MOZ_COUNT_CTOR(nsDisplaySVGWrapper);
|
|
}
|
|
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
nsDisplaySVGWrapper::~nsDisplaySVGWrapper() {
|
|
MOZ_COUNT_DTOR(nsDisplaySVGWrapper);
|
|
}
|
|
#endif
|
|
|
|
LayerState
|
|
nsDisplaySVGWrapper::GetLayerState(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aParameters)
|
|
{
|
|
RefPtr<LayerManager> layerManager = aBuilder->GetWidgetLayerManager();
|
|
if (layerManager && layerManager->GetBackendType() == layers::LayersBackend::LAYERS_WR) {
|
|
return LAYER_ACTIVE_FORCE;
|
|
}
|
|
return LAYER_NONE;
|
|
}
|
|
|
|
bool
|
|
nsDisplaySVGWrapper::ShouldFlattenAway(nsDisplayListBuilder* aBuilder)
|
|
{
|
|
RefPtr<LayerManager> layerManager = aBuilder->GetWidgetLayerManager();
|
|
if (layerManager && layerManager->GetBackendType() == layers::LayersBackend::LAYERS_WR) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
already_AddRefed<Layer>
|
|
nsDisplaySVGWrapper::BuildLayer(nsDisplayListBuilder* aBuilder,
|
|
LayerManager* aManager,
|
|
const ContainerLayerParameters& aContainerParameters)
|
|
{
|
|
ContainerLayerParameters newContainerParameters = aContainerParameters;
|
|
newContainerParameters.mDisableSubpixelAntialiasingInDescendants = true;
|
|
|
|
RefPtr<ContainerLayer> container = aManager->GetLayerBuilder()->
|
|
BuildContainerLayerFor(aBuilder, aManager, mFrame, this, &mList,
|
|
newContainerParameters, nullptr);
|
|
|
|
return container.forget();
|
|
}
|
|
|
|
bool
|
|
nsDisplaySVGWrapper::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder)
|
|
{
|
|
if (gfxPrefs::WebRenderBlobInvalidation()) {
|
|
return nsDisplayWrapList::CreateWebRenderCommands(aBuilder,
|
|
aResources,
|
|
aSc,
|
|
aManager,
|
|
aDisplayListBuilder);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
namespace mozilla {
|
|
|
|
uint32_t PaintTelemetry::sPaintLevel = 0;
|
|
uint32_t PaintTelemetry::sMetricLevel = 0;
|
|
EnumeratedArray<PaintTelemetry::Metric,
|
|
PaintTelemetry::Metric::COUNT,
|
|
double> PaintTelemetry::sMetrics;
|
|
|
|
PaintTelemetry::AutoRecordPaint::AutoRecordPaint()
|
|
{
|
|
// Don't record nested paints.
|
|
if (sPaintLevel++ > 0) {
|
|
return;
|
|
}
|
|
|
|
// Reset metrics for a new paint.
|
|
for (auto& metric : sMetrics) {
|
|
metric = 0.0;
|
|
}
|
|
mStart = TimeStamp::Now();
|
|
}
|
|
|
|
PaintTelemetry::AutoRecordPaint::~AutoRecordPaint()
|
|
{
|
|
MOZ_ASSERT(sPaintLevel != 0);
|
|
if (--sPaintLevel > 0) {
|
|
return;
|
|
}
|
|
|
|
// If we're in multi-process mode, don't include paint times for the parent
|
|
// process.
|
|
if (gfxVars::BrowserTabsRemoteAutostart() && XRE_IsParentProcess()) {
|
|
return;
|
|
}
|
|
|
|
double totalMs = (TimeStamp::Now() - mStart).ToMilliseconds();
|
|
|
|
// Record the total time.
|
|
Telemetry::Accumulate(Telemetry::CONTENT_PAINT_TIME, static_cast<uint32_t>(totalMs));
|
|
|
|
// Helpers for recording large/small paints.
|
|
auto recordLarge = [=](const nsCString& aKey, double aDurationMs) -> void {
|
|
MOZ_ASSERT(aDurationMs <= totalMs);
|
|
uint32_t amount = static_cast<int32_t>((aDurationMs / totalMs) * 100.0);
|
|
Telemetry::Accumulate(Telemetry::CONTENT_LARGE_PAINT_PHASE_WEIGHT, aKey, amount);
|
|
};
|
|
auto recordSmall = [=](const nsCString& aKey, double aDurationMs) -> void {
|
|
MOZ_ASSERT(aDurationMs <= totalMs);
|
|
uint32_t amount = static_cast<int32_t>((aDurationMs / totalMs) * 100.0);
|
|
Telemetry::Accumulate(Telemetry::CONTENT_SMALL_PAINT_PHASE_WEIGHT, aKey, amount);
|
|
};
|
|
|
|
double dlMs = sMetrics[Metric::DisplayList];
|
|
double flbMs = sMetrics[Metric::Layerization];
|
|
double rMs = sMetrics[Metric::Rasterization];
|
|
|
|
// If the total time was >= 16ms, then it's likely we missed a frame due to
|
|
// painting. We bucket these metrics separately.
|
|
if (totalMs >= 16.0) {
|
|
recordLarge(NS_LITERAL_CSTRING("dl"), dlMs);
|
|
recordLarge(NS_LITERAL_CSTRING("flb"), flbMs);
|
|
recordLarge(NS_LITERAL_CSTRING("r"), rMs);
|
|
} else {
|
|
recordSmall(NS_LITERAL_CSTRING("dl"), dlMs);
|
|
recordSmall(NS_LITERAL_CSTRING("flb"), flbMs);
|
|
recordSmall(NS_LITERAL_CSTRING("r"), rMs);
|
|
}
|
|
}
|
|
|
|
PaintTelemetry::AutoRecord::AutoRecord(Metric aMetric)
|
|
: mMetric(aMetric)
|
|
{
|
|
// Don't double-record anything nested.
|
|
if (sMetricLevel++ > 0) {
|
|
return;
|
|
}
|
|
|
|
// Don't record inside nested paints, or outside of paints.
|
|
if (sPaintLevel != 1) {
|
|
return;
|
|
}
|
|
|
|
mStart = TimeStamp::Now();
|
|
}
|
|
|
|
PaintTelemetry::AutoRecord::~AutoRecord()
|
|
{
|
|
MOZ_ASSERT(sMetricLevel != 0);
|
|
|
|
sMetricLevel--;
|
|
if (mStart.IsNull()) {
|
|
return;
|
|
}
|
|
|
|
sMetrics[mMetric] += (TimeStamp::Now() - mStart).ToMilliseconds();
|
|
}
|
|
|
|
} // namespace mozilla
|