зеркало из https://github.com/mozilla/gecko-dev.git
1319 строки
46 KiB
C++
1319 строки
46 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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/* rendering object for list-item bullets */
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#include "nsBulletFrame.h"
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#include "gfx2DGlue.h"
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#include "gfxContext.h"
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#include "gfxPrefs.h"
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#include "gfxUtils.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/gfx/PathHelpers.h"
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#include "mozilla/layers/LayersMessages.h"
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#include "mozilla/layers/StackingContextHelper.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/MathAlgorithms.h"
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#include "mozilla/Move.h"
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#include "nsCOMPtr.h"
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#include "nsFontMetrics.h"
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#include "nsGkAtoms.h"
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#include "nsGenericHTMLElement.h"
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#include "nsAttrValueInlines.h"
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#include "nsPresContext.h"
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#include "nsIPresShell.h"
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#include "mozilla/dom/Document.h"
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#include "nsDisplayList.h"
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#include "nsCounterManager.h"
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#include "nsBidiUtils.h"
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#include "CounterStyleManager.h"
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#include "UnitTransforms.h"
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#include "imgIContainer.h"
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#include "ImageLayers.h"
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#include "imgRequestProxy.h"
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#include "nsIURI.h"
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#include "SVGImageContext.h"
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#include "TextDrawTarget.h"
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#include "mozilla/layers/WebRenderBridgeChild.h"
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#include <algorithm>
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#ifdef ACCESSIBILITY
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#include "nsAccessibilityService.h"
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#endif
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using namespace mozilla;
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using namespace mozilla::gfx;
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using namespace mozilla::image;
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using namespace mozilla::layout;
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NS_DECLARE_FRAME_PROPERTY_SMALL_VALUE(FontSizeInflationProperty, float)
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NS_IMPL_FRAMEARENA_HELPERS(nsBulletFrame)
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#ifdef DEBUG
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NS_QUERYFRAME_HEAD(nsBulletFrame)
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NS_QUERYFRAME_ENTRY(nsBulletFrame)
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NS_QUERYFRAME_TAIL_INHERITING(nsFrame)
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#endif
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nsBulletFrame::~nsBulletFrame() {}
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void nsBulletFrame::DestroyFrom(nsIFrame* aDestructRoot,
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PostDestroyData& aPostDestroyData) {
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// Stop image loading first.
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DeregisterAndCancelImageRequest();
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if (mListener) {
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mListener->SetFrame(nullptr);
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}
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// Let base class do the rest
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nsFrame::DestroyFrom(aDestructRoot, aPostDestroyData);
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}
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#ifdef DEBUG_FRAME_DUMP
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nsresult nsBulletFrame::GetFrameName(nsAString& aResult) const {
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return MakeFrameName(NS_LITERAL_STRING("Bullet"), aResult);
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}
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#endif
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bool nsBulletFrame::IsEmpty() { return IsSelfEmpty(); }
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bool nsBulletFrame::IsSelfEmpty() {
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return StyleList()->mCounterStyle->IsNone();
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}
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/* virtual */ void nsBulletFrame::DidSetComputedStyle(
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ComputedStyle* aOldComputedStyle) {
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nsFrame::DidSetComputedStyle(aOldComputedStyle);
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imgRequestProxy* newRequest = StyleList()->GetListStyleImage();
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if (newRequest) {
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if (!mListener) {
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mListener = new nsBulletListener();
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mListener->SetFrame(this);
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}
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bool needNewRequest = true;
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if (mImageRequest) {
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// Reload the image, maybe...
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nsCOMPtr<nsIURI> oldURI;
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mImageRequest->GetURI(getter_AddRefs(oldURI));
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nsCOMPtr<nsIURI> newURI;
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newRequest->GetURI(getter_AddRefs(newURI));
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if (oldURI && newURI) {
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bool same;
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newURI->Equals(oldURI, &same);
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if (same) {
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needNewRequest = false;
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}
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}
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}
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if (needNewRequest) {
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RefPtr<imgRequestProxy> newRequestClone;
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newRequest->SyncClone(mListener, PresContext()->Document(),
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getter_AddRefs(newRequestClone));
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// Deregister the old request. We wait until after Clone is done in case
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// the old request and the new request are the same underlying image
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// accessed via different URLs.
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DeregisterAndCancelImageRequest();
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// Register the new request.
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mImageRequest = std::move(newRequestClone);
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RegisterImageRequest(/* aKnownToBeAnimated = */ false);
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}
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} else {
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// No image request on the new ComputedStyle.
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DeregisterAndCancelImageRequest();
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}
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#ifdef ACCESSIBILITY
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// Update the list bullet accessible. If old style list isn't available then
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// no need to update the accessible tree because it's not created yet.
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if (aOldComputedStyle) {
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nsAccessibilityService* accService = nsIPresShell::AccService();
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if (accService) {
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const nsStyleList* oldStyleList = aOldComputedStyle->PeekStyleList();
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if (oldStyleList) {
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bool hadBullet = oldStyleList->GetListStyleImage() ||
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!oldStyleList->mCounterStyle->IsNone();
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const nsStyleList* newStyleList = StyleList();
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bool hasBullet = newStyleList->GetListStyleImage() ||
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!newStyleList->mCounterStyle->IsNone();
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if (hadBullet != hasBullet) {
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accService->UpdateListBullet(PresContext()->GetPresShell(), mContent,
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hasBullet);
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}
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}
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}
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}
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#endif
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}
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class nsDisplayBulletGeometry
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: public nsDisplayItemGenericGeometry,
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public nsImageGeometryMixin<nsDisplayBulletGeometry> {
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public:
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nsDisplayBulletGeometry(nsDisplayItem* aItem, nsDisplayListBuilder* aBuilder)
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: nsDisplayItemGenericGeometry(aItem, aBuilder),
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nsImageGeometryMixin(aItem, aBuilder) {
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nsBulletFrame* f = static_cast<nsBulletFrame*>(aItem->Frame());
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mOrdinal = f->GetOrdinal();
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}
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virtual bool InvalidateForSyncDecodeImages() const override {
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return ShouldInvalidateToSyncDecodeImages();
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}
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int32_t mOrdinal;
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};
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class BulletRenderer final {
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public:
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BulletRenderer(imgIContainer* image, const nsRect& dest)
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: mImage(image),
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mDest(dest),
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mColor(NS_RGBA(0, 0, 0, 0)),
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mListStyleType(NS_STYLE_LIST_STYLE_NONE) {
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MOZ_ASSERT(IsImageType());
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}
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BulletRenderer(Path* path, nscolor color, int32_t listStyleType)
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: mColor(color), mPath(path), mListStyleType(listStyleType) {
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MOZ_ASSERT(IsPathType());
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}
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BulletRenderer(const LayoutDeviceRect& aPathRect, nscolor color,
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int32_t listStyleType)
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: mPathRect(aPathRect), mColor(color), mListStyleType(listStyleType) {
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MOZ_ASSERT(IsPathType());
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}
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BulletRenderer(const nsString& text, nsFontMetrics* fm, nscolor color,
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const nsPoint& point, int32_t listStyleType)
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: mColor(color),
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mText(text),
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mFontMetrics(fm),
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mPoint(point),
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mListStyleType(listStyleType) {
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MOZ_ASSERT(IsTextType());
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}
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ImgDrawResult CreateWebRenderCommands(
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nsDisplayItem* aItem, wr::DisplayListBuilder& aBuilder,
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wr::IpcResourceUpdateQueue& aResources,
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const layers::StackingContextHelper& aSc,
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mozilla::layers::WebRenderLayerManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder);
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ImgDrawResult Paint(gfxContext& aRenderingContext, nsPoint aPt,
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const nsRect& aDirtyRect, uint32_t aFlags,
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bool aDisableSubpixelAA, nsIFrame* aFrame);
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bool IsImageType() const {
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return mListStyleType == NS_STYLE_LIST_STYLE_NONE && mImage;
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}
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bool IsPathType() const {
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return mListStyleType == NS_STYLE_LIST_STYLE_DISC ||
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mListStyleType == NS_STYLE_LIST_STYLE_CIRCLE ||
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mListStyleType == NS_STYLE_LIST_STYLE_SQUARE ||
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mListStyleType == NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN ||
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mListStyleType == NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED;
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}
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bool IsTextType() const {
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return mListStyleType != NS_STYLE_LIST_STYLE_NONE &&
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mListStyleType != NS_STYLE_LIST_STYLE_DISC &&
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mListStyleType != NS_STYLE_LIST_STYLE_CIRCLE &&
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mListStyleType != NS_STYLE_LIST_STYLE_SQUARE &&
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mListStyleType != NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN &&
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mListStyleType != NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED &&
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!mText.IsEmpty();
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}
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void PaintTextToContext(nsIFrame* aFrame, gfxContext* aCtx,
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bool aDisableSubpixelAA);
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bool IsImageContainerAvailable(layers::LayerManager* aManager,
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uint32_t aFlags);
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private:
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ImgDrawResult CreateWebRenderCommandsForImage(
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nsDisplayItem* aItem, wr::DisplayListBuilder& aBuilder,
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wr::IpcResourceUpdateQueue& aResources,
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const layers::StackingContextHelper& aSc,
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mozilla::layers::WebRenderLayerManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder);
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bool CreateWebRenderCommandsForPath(
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nsDisplayItem* aItem, wr::DisplayListBuilder& aBuilder,
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wr::IpcResourceUpdateQueue& aResources,
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const layers::StackingContextHelper& aSc,
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mozilla::layers::WebRenderLayerManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder);
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bool CreateWebRenderCommandsForText(
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nsDisplayItem* aItem, wr::DisplayListBuilder& aBuilder,
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wr::IpcResourceUpdateQueue& aResources,
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const layers::StackingContextHelper& aSc,
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mozilla::layers::WebRenderLayerManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder);
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private:
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// mImage and mDest are the properties for list-style-image.
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// mImage is the image content and mDest is the image position.
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RefPtr<imgIContainer> mImage;
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nsRect mDest;
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// Some bullet types are stored as a rect (in device pixels) instead of a Path
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// to allow generating proper WebRender commands. When webrender is disabled
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// the Path is lazily created for these items before painting.
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// TODO: The size of this structure doesn't seem to be an issue since it has
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// so many fields that are specific to a bullet style or another, but if it
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// becomes one we can easily store mDest and mPathRect into the same memory
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// location since they are never used by the same bullet types.
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LayoutDeviceRect mPathRect;
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// mColor indicate the color of list-style. Both text and path type would use
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// this member.
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nscolor mColor;
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// mPath record the path of the list-style for later drawing.
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// Included following types: square, circle, disc, disclosure open and
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// disclosure closed.
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RefPtr<Path> mPath;
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// mText, mFontMertrics, mPoint, mFont and mGlyphs are for other
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// list-style-type which can be drawed by text.
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nsString mText;
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RefPtr<nsFontMetrics> mFontMetrics;
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nsPoint mPoint;
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RefPtr<ScaledFont> mFont;
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nsTArray<layers::GlyphArray> mGlyphs;
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// Store the type of list-style-type.
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int32_t mListStyleType;
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};
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ImgDrawResult BulletRenderer::CreateWebRenderCommands(
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nsDisplayItem* aItem, wr::DisplayListBuilder& aBuilder,
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wr::IpcResourceUpdateQueue& aResources,
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const layers::StackingContextHelper& aSc,
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mozilla::layers::WebRenderLayerManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder) {
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if (IsImageType()) {
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return CreateWebRenderCommandsForImage(aItem, aBuilder, aResources, aSc,
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aManager, aDisplayListBuilder);
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}
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bool success;
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if (IsPathType()) {
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success = CreateWebRenderCommandsForPath(aItem, aBuilder, aResources, aSc,
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aManager, aDisplayListBuilder);
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} else {
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MOZ_ASSERT(IsTextType());
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success = CreateWebRenderCommandsForText(aItem, aBuilder, aResources, aSc,
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aManager, aDisplayListBuilder);
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}
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return success ? ImgDrawResult::SUCCESS : ImgDrawResult::NOT_SUPPORTED;
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}
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ImgDrawResult BulletRenderer::Paint(gfxContext& aRenderingContext, nsPoint aPt,
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const nsRect& aDirtyRect, uint32_t aFlags,
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bool aDisableSubpixelAA, nsIFrame* aFrame) {
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if (IsImageType()) {
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SamplingFilter filter = nsLayoutUtils::GetSamplingFilterForFrame(aFrame);
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return nsLayoutUtils::DrawSingleImage(
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aRenderingContext, aFrame->PresContext(), mImage, filter, mDest,
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aDirtyRect,
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/* no SVGImageContext */ Nothing(), aFlags);
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}
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if (IsPathType()) {
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DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
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if (!mPath) {
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RefPtr<PathBuilder> builder = drawTarget->CreatePathBuilder();
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switch (mListStyleType) {
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case NS_STYLE_LIST_STYLE_CIRCLE:
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case NS_STYLE_LIST_STYLE_DISC:
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AppendEllipseToPath(builder, mPathRect.Center().ToUnknownPoint(),
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mPathRect.Size().ToUnknownSize());
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break;
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case NS_STYLE_LIST_STYLE_SQUARE:
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AppendRectToPath(builder, mPathRect.ToUnknownRect());
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break;
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default:
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MOZ_ASSERT(false, "Should have a parth.");
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}
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mPath = builder->Finish();
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}
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switch (mListStyleType) {
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case NS_STYLE_LIST_STYLE_CIRCLE:
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drawTarget->Stroke(mPath, ColorPattern(ToDeviceColor(mColor)));
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break;
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case NS_STYLE_LIST_STYLE_DISC:
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case NS_STYLE_LIST_STYLE_SQUARE:
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case NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED:
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case NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN:
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drawTarget->Fill(mPath, ColorPattern(ToDeviceColor(mColor)));
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break;
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default:
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MOZ_CRASH("unreachable");
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}
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}
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if (IsTextType()) {
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PaintTextToContext(aFrame, &aRenderingContext, aDisableSubpixelAA);
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}
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return ImgDrawResult::SUCCESS;
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}
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void BulletRenderer::PaintTextToContext(nsIFrame* aFrame, gfxContext* aCtx,
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bool aDisableSubpixelAA) {
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MOZ_ASSERT(IsTextType());
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DrawTarget* drawTarget = aCtx->GetDrawTarget();
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DrawTargetAutoDisableSubpixelAntialiasing disable(drawTarget,
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aDisableSubpixelAA);
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aCtx->SetColor(Color::FromABGR(mColor));
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nsPresContext* presContext = aFrame->PresContext();
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if (!presContext->BidiEnabled() && HasRTLChars(mText)) {
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presContext->SetBidiEnabled();
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}
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nsLayoutUtils::DrawString(aFrame, *mFontMetrics, aCtx, mText.get(),
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mText.Length(), mPoint);
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}
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bool BulletRenderer::IsImageContainerAvailable(layers::LayerManager* aManager,
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uint32_t aFlags) {
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MOZ_ASSERT(IsImageType());
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return mImage->IsImageContainerAvailable(aManager, aFlags);
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}
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ImgDrawResult BulletRenderer::CreateWebRenderCommandsForImage(
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nsDisplayItem* aItem, wr::DisplayListBuilder& aBuilder,
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wr::IpcResourceUpdateQueue& aResources,
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const layers::StackingContextHelper& aSc,
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mozilla::layers::WebRenderLayerManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder) {
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MOZ_RELEASE_ASSERT(IsImageType());
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MOZ_RELEASE_ASSERT(mImage);
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uint32_t flags = imgIContainer::FLAG_ASYNC_NOTIFY;
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if (aDisplayListBuilder->IsPaintingToWindow()) {
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flags |= imgIContainer::FLAG_HIGH_QUALITY_SCALING;
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}
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if (aDisplayListBuilder->ShouldSyncDecodeImages()) {
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flags |= imgIContainer::FLAG_SYNC_DECODE;
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}
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const int32_t appUnitsPerDevPixel =
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aItem->Frame()->PresContext()->AppUnitsPerDevPixel();
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LayoutDeviceRect destRect =
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LayoutDeviceRect::FromAppUnits(mDest, appUnitsPerDevPixel);
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Maybe<SVGImageContext> svgContext;
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gfx::IntSize decodeSize =
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nsLayoutUtils::ComputeImageContainerDrawingParameters(
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mImage, aItem->Frame(), destRect, aSc, flags, svgContext);
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RefPtr<layers::ImageContainer> container;
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ImgDrawResult drawResult = mImage->GetImageContainerAtSize(
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aManager, decodeSize, svgContext, flags, getter_AddRefs(container));
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if (!container) {
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return drawResult;
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}
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mozilla::wr::ImageRendering rendering = wr::ToImageRendering(
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nsLayoutUtils::GetSamplingFilterForFrame(aItem->Frame()));
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gfx::IntSize size;
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Maybe<wr::ImageKey> key = aManager->CommandBuilder().CreateImageKey(
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aItem, container, aBuilder, aResources, rendering, aSc, size, Nothing());
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if (key.isNothing()) {
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return drawResult;
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}
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wr::LayoutRect dest = wr::ToRoundedLayoutRect(destRect);
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aBuilder.PushImage(dest, dest, !aItem->BackfaceIsHidden(), rendering,
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key.value());
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return drawResult;
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}
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bool BulletRenderer::CreateWebRenderCommandsForPath(
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nsDisplayItem* aItem, wr::DisplayListBuilder& aBuilder,
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wr::IpcResourceUpdateQueue& aResources,
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const layers::StackingContextHelper& aSc,
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mozilla::layers::WebRenderLayerManager* aManager,
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nsDisplayListBuilder* aDisplayListBuilder) {
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MOZ_ASSERT(IsPathType());
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wr::LayoutRect dest = wr::ToRoundedLayoutRect(mPathRect);
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auto color = wr::ToColorF(ToDeviceColor(mColor));
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bool isBackfaceVisible = !aItem->BackfaceIsHidden();
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switch (mListStyleType) {
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case NS_STYLE_LIST_STYLE_CIRCLE: {
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LayoutDeviceSize radii = mPathRect.Size() / 2.0;
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auto borderWidths = wr::ToBorderWidths(1.0, 1.0, 1.0, 1.0);
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wr::BorderSide side = {color, wr::BorderStyle::Solid};
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wr::BorderSide sides[4] = {side, side, side, side};
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Range<const wr::BorderSide> sidesRange(sides, 4);
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aBuilder.PushBorder(dest, dest, isBackfaceVisible, borderWidths,
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sidesRange,
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wr::ToBorderRadius(radii, radii, radii, radii));
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return true;
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}
|
|
case NS_STYLE_LIST_STYLE_DISC: {
|
|
AutoTArray<wr::ComplexClipRegion, 1> clips;
|
|
clips.AppendElement(wr::SimpleRadii(dest, dest.size.width / 2));
|
|
auto clipId = aBuilder.DefineClip(Nothing(), dest, &clips, nullptr);
|
|
aBuilder.PushClip(clipId);
|
|
aBuilder.PushRect(dest, dest, isBackfaceVisible, color);
|
|
aBuilder.PopClip();
|
|
return true;
|
|
}
|
|
case NS_STYLE_LIST_STYLE_SQUARE: {
|
|
aBuilder.PushRect(dest, dest, isBackfaceVisible, color);
|
|
return true;
|
|
}
|
|
default:
|
|
if (!aManager->CommandBuilder().PushItemAsImage(
|
|
aItem, aBuilder, aResources, aSc, aDisplayListBuilder)) {
|
|
NS_WARNING("Fail to create WebRender commands for Bullet path.");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool BulletRenderer::CreateWebRenderCommandsForText(
|
|
nsDisplayItem* aItem, wr::DisplayListBuilder& aBuilder,
|
|
wr::IpcResourceUpdateQueue& aResources,
|
|
const layers::StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder) {
|
|
MOZ_ASSERT(IsTextType());
|
|
|
|
bool dummy;
|
|
nsRect bounds = aItem->GetBounds(aDisplayListBuilder, &dummy);
|
|
|
|
if (bounds.IsEmpty()) {
|
|
return true;
|
|
}
|
|
|
|
RefPtr<TextDrawTarget> textDrawer =
|
|
new TextDrawTarget(aBuilder, aResources, aSc, aManager, aItem, bounds);
|
|
RefPtr<gfxContext> captureCtx = gfxContext::CreateOrNull(textDrawer);
|
|
PaintTextToContext(aItem->Frame(), captureCtx, aItem->IsSubpixelAADisabled());
|
|
textDrawer->TerminateShadows();
|
|
|
|
return textDrawer->Finish();
|
|
}
|
|
|
|
class nsDisplayBullet final : public nsDisplayItem {
|
|
public:
|
|
nsDisplayBullet(nsDisplayListBuilder* aBuilder, nsBulletFrame* aFrame)
|
|
: nsDisplayItem(aBuilder, aFrame) {
|
|
MOZ_COUNT_CTOR(nsDisplayBullet);
|
|
}
|
|
#ifdef NS_BUILD_REFCNT_LOGGING
|
|
virtual ~nsDisplayBullet() { MOZ_COUNT_DTOR(nsDisplayBullet); }
|
|
#endif
|
|
|
|
virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder,
|
|
bool* aSnap) const override {
|
|
*aSnap = false;
|
|
return mFrame->GetVisualOverflowRectRelativeToSelf() + ToReferenceFrame();
|
|
}
|
|
|
|
virtual bool CreateWebRenderCommands(
|
|
mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue&, const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder) override;
|
|
|
|
virtual void HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect,
|
|
HitTestState* aState,
|
|
nsTArray<nsIFrame*>* aOutFrames) override {
|
|
aOutFrames->AppendElement(mFrame);
|
|
}
|
|
virtual void Paint(nsDisplayListBuilder* aBuilder, gfxContext* aCtx) override;
|
|
NS_DISPLAY_DECL_NAME("Bullet", TYPE_BULLET)
|
|
|
|
virtual nsRect GetComponentAlphaBounds(
|
|
nsDisplayListBuilder* aBuilder) const override {
|
|
bool snap;
|
|
return GetBounds(aBuilder, &snap);
|
|
}
|
|
|
|
virtual nsDisplayItemGeometry* AllocateGeometry(
|
|
nsDisplayListBuilder* aBuilder) override {
|
|
return new nsDisplayBulletGeometry(this, aBuilder);
|
|
}
|
|
|
|
virtual void ComputeInvalidationRegion(
|
|
nsDisplayListBuilder* aBuilder, const nsDisplayItemGeometry* aGeometry,
|
|
nsRegion* aInvalidRegion) const override {
|
|
const nsDisplayBulletGeometry* geometry =
|
|
static_cast<const nsDisplayBulletGeometry*>(aGeometry);
|
|
nsBulletFrame* f = static_cast<nsBulletFrame*>(mFrame);
|
|
|
|
if (f->GetOrdinal() != geometry->mOrdinal) {
|
|
bool snap;
|
|
aInvalidRegion->Or(geometry->mBounds, GetBounds(aBuilder, &snap));
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<imgIContainer> image = f->GetImage();
|
|
if (aBuilder->ShouldSyncDecodeImages() && image &&
|
|
geometry->ShouldInvalidateToSyncDecodeImages()) {
|
|
bool snap;
|
|
aInvalidRegion->Or(*aInvalidRegion, GetBounds(aBuilder, &snap));
|
|
}
|
|
|
|
return nsDisplayItem::ComputeInvalidationRegion(aBuilder, aGeometry,
|
|
aInvalidRegion);
|
|
}
|
|
|
|
protected:
|
|
Maybe<BulletRenderer> mBulletRenderer;
|
|
};
|
|
|
|
bool nsDisplayBullet::CreateWebRenderCommands(
|
|
wr::DisplayListBuilder& aBuilder, wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::WebRenderLayerManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder) {
|
|
// FIXME: avoid needing to make this target if we're drawing text
|
|
// (non-trivial refactor of all this code)
|
|
RefPtr<gfxContext> screenRefCtx = gfxContext::CreateOrNull(
|
|
gfxPlatform::GetPlatform()->ScreenReferenceDrawTarget().get());
|
|
Maybe<BulletRenderer> br =
|
|
static_cast<nsBulletFrame*>(mFrame)->CreateBulletRenderer(
|
|
*screenRefCtx, ToReferenceFrame());
|
|
|
|
if (!br) {
|
|
return false;
|
|
}
|
|
|
|
ImgDrawResult drawResult = br->CreateWebRenderCommands(
|
|
this, aBuilder, aResources, aSc, aManager, aDisplayListBuilder);
|
|
if (drawResult == ImgDrawResult::NOT_SUPPORTED) {
|
|
return false;
|
|
}
|
|
|
|
nsDisplayBulletGeometry::UpdateDrawResult(this, drawResult);
|
|
return true;
|
|
}
|
|
|
|
void nsDisplayBullet::Paint(nsDisplayListBuilder* aBuilder, gfxContext* aCtx) {
|
|
uint32_t flags = imgIContainer::FLAG_NONE;
|
|
if (aBuilder->ShouldSyncDecodeImages()) {
|
|
flags |= imgIContainer::FLAG_SYNC_DECODE;
|
|
}
|
|
|
|
ImgDrawResult result = static_cast<nsBulletFrame*>(mFrame)->PaintBullet(
|
|
*aCtx, ToReferenceFrame(), GetPaintRect(), flags, mDisableSubpixelAA);
|
|
|
|
nsDisplayBulletGeometry::UpdateDrawResult(this, result);
|
|
}
|
|
|
|
void nsBulletFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayListSet& aLists) {
|
|
if (!IsVisibleForPainting()) return;
|
|
|
|
DO_GLOBAL_REFLOW_COUNT_DSP("nsBulletFrame");
|
|
|
|
aLists.Content()->AppendToTop(
|
|
MakeDisplayItem<nsDisplayBullet>(aBuilder, this));
|
|
}
|
|
|
|
Maybe<BulletRenderer> nsBulletFrame::CreateBulletRenderer(
|
|
gfxContext& aRenderingContext, nsPoint aPt) {
|
|
const nsStyleList* myList = StyleList();
|
|
CounterStyle* listStyleType = myList->mCounterStyle;
|
|
nsMargin padding = mPadding.GetPhysicalMargin(GetWritingMode());
|
|
|
|
if (myList->GetListStyleImage() && mImageRequest) {
|
|
uint32_t status;
|
|
mImageRequest->GetImageStatus(&status);
|
|
if (status & imgIRequest::STATUS_LOAD_COMPLETE &&
|
|
!(status & imgIRequest::STATUS_ERROR)) {
|
|
nsCOMPtr<imgIContainer> imageCon;
|
|
mImageRequest->GetImage(getter_AddRefs(imageCon));
|
|
if (imageCon) {
|
|
nsRect dest(padding.left, padding.top,
|
|
mRect.width - (padding.left + padding.right),
|
|
mRect.height - (padding.top + padding.bottom));
|
|
BulletRenderer br(imageCon, dest + aPt);
|
|
return Some(br);
|
|
}
|
|
}
|
|
}
|
|
|
|
nscolor color = nsLayoutUtils::GetColor(this, &nsStyleColor::mColor);
|
|
|
|
DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
|
|
int32_t appUnitsPerDevPixel = PresContext()->AppUnitsPerDevPixel();
|
|
|
|
switch (listStyleType->GetStyle()) {
|
|
case NS_STYLE_LIST_STYLE_NONE:
|
|
return Nothing();
|
|
|
|
case NS_STYLE_LIST_STYLE_DISC:
|
|
case NS_STYLE_LIST_STYLE_CIRCLE: {
|
|
nsRect rect(padding.left + aPt.x, padding.top + aPt.y,
|
|
mRect.width - (padding.left + padding.right),
|
|
mRect.height - (padding.top + padding.bottom));
|
|
auto devPxRect =
|
|
LayoutDeviceRect::FromAppUnits(rect, appUnitsPerDevPixel);
|
|
return Some(BulletRenderer(devPxRect, color, listStyleType->GetStyle()));
|
|
}
|
|
|
|
case NS_STYLE_LIST_STYLE_SQUARE: {
|
|
nsRect rect(aPt, mRect.Size());
|
|
rect.Deflate(padding);
|
|
|
|
// Snap the height and the width of the rectangle to device pixels,
|
|
// and then center the result within the original rectangle, so that
|
|
// all square bullets at the same font size have the same visual
|
|
// size (bug 376690).
|
|
// FIXME: We should really only do this if we're not transformed
|
|
// (like gfxContext::UserToDevicePixelSnapped does).
|
|
nsPresContext* pc = PresContext();
|
|
nsRect snapRect(rect.x, rect.y,
|
|
pc->RoundAppUnitsToNearestDevPixels(rect.width),
|
|
pc->RoundAppUnitsToNearestDevPixels(rect.height));
|
|
snapRect.MoveBy((rect.width - snapRect.width) / 2,
|
|
(rect.height - snapRect.height) / 2);
|
|
auto devPxRect =
|
|
LayoutDeviceRect::FromAppUnits(snapRect, appUnitsPerDevPixel);
|
|
return Some(BulletRenderer(devPxRect, color, listStyleType->GetStyle()));
|
|
}
|
|
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN: {
|
|
nsRect rect(aPt, mRect.Size());
|
|
rect.Deflate(padding);
|
|
|
|
WritingMode wm = GetWritingMode();
|
|
bool isVertical = wm.IsVertical();
|
|
bool isClosed =
|
|
listStyleType->GetStyle() == NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED;
|
|
bool isDown = (!isVertical && !isClosed) || (isVertical && isClosed);
|
|
nscoord diff = NSToCoordRound(0.1f * rect.height);
|
|
if (isDown) {
|
|
rect.y += diff * 2;
|
|
rect.height -= diff * 2;
|
|
} else {
|
|
rect.Deflate(diff, 0);
|
|
}
|
|
nsPresContext* pc = PresContext();
|
|
rect.x = pc->RoundAppUnitsToNearestDevPixels(rect.x);
|
|
rect.y = pc->RoundAppUnitsToNearestDevPixels(rect.y);
|
|
|
|
RefPtr<PathBuilder> builder = drawTarget->CreatePathBuilder();
|
|
if (isDown) {
|
|
// to bottom
|
|
builder->MoveTo(NSPointToPoint(rect.TopLeft(), appUnitsPerDevPixel));
|
|
builder->LineTo(NSPointToPoint(rect.TopRight(), appUnitsPerDevPixel));
|
|
builder->LineTo(NSPointToPoint(
|
|
(rect.BottomLeft() + rect.BottomRight()) / 2, appUnitsPerDevPixel));
|
|
} else {
|
|
bool isLR = isVertical ? wm.IsVerticalLR() : wm.IsBidiLTR();
|
|
if (isLR) {
|
|
// to right
|
|
builder->MoveTo(NSPointToPoint(rect.TopLeft(), appUnitsPerDevPixel));
|
|
builder->LineTo(NSPointToPoint(
|
|
(rect.TopRight() + rect.BottomRight()) / 2, appUnitsPerDevPixel));
|
|
builder->LineTo(
|
|
NSPointToPoint(rect.BottomLeft(), appUnitsPerDevPixel));
|
|
} else {
|
|
// to left
|
|
builder->MoveTo(NSPointToPoint(rect.TopRight(), appUnitsPerDevPixel));
|
|
builder->LineTo(
|
|
NSPointToPoint(rect.BottomRight(), appUnitsPerDevPixel));
|
|
builder->LineTo(NSPointToPoint(
|
|
(rect.TopLeft() + rect.BottomLeft()) / 2, appUnitsPerDevPixel));
|
|
}
|
|
}
|
|
|
|
RefPtr<Path> path = builder->Finish();
|
|
BulletRenderer br(path, color, listStyleType->GetStyle());
|
|
return Some(br);
|
|
}
|
|
|
|
default: {
|
|
RefPtr<nsFontMetrics> fm =
|
|
nsLayoutUtils::GetFontMetricsForFrame(this, GetFontSizeInflation());
|
|
nsAutoString text;
|
|
GetListItemText(text);
|
|
WritingMode wm = GetWritingMode();
|
|
nscoord ascent = wm.IsLineInverted() ? fm->MaxDescent() : fm->MaxAscent();
|
|
aPt.MoveBy(padding.left, padding.top);
|
|
if (wm.IsVertical()) {
|
|
if (wm.IsVerticalLR()) {
|
|
aPt.x = NSToCoordRound(nsLayoutUtils::GetSnappedBaselineX(
|
|
this, &aRenderingContext, aPt.x, ascent));
|
|
} else {
|
|
aPt.x = NSToCoordRound(nsLayoutUtils::GetSnappedBaselineX(
|
|
this, &aRenderingContext, aPt.x + mRect.width, -ascent));
|
|
}
|
|
} else {
|
|
aPt.y = NSToCoordRound(nsLayoutUtils::GetSnappedBaselineY(
|
|
this, &aRenderingContext, aPt.y, ascent));
|
|
}
|
|
|
|
BulletRenderer br(text, fm, color, aPt, listStyleType->GetStyle());
|
|
return Some(br);
|
|
}
|
|
}
|
|
|
|
MOZ_CRASH("unreachable");
|
|
return Nothing();
|
|
}
|
|
|
|
ImgDrawResult nsBulletFrame::PaintBullet(gfxContext& aRenderingContext,
|
|
nsPoint aPt, const nsRect& aDirtyRect,
|
|
uint32_t aFlags,
|
|
bool aDisableSubpixelAA) {
|
|
Maybe<BulletRenderer> br = CreateBulletRenderer(aRenderingContext, aPt);
|
|
|
|
if (!br) {
|
|
return ImgDrawResult::SUCCESS;
|
|
}
|
|
|
|
return br->Paint(aRenderingContext, aPt, aDirtyRect, aFlags,
|
|
aDisableSubpixelAA, this);
|
|
}
|
|
|
|
int32_t nsBulletFrame::SetListItemOrdinal(int32_t aNextOrdinal, bool* aChanged,
|
|
int32_t aIncrement) {
|
|
MOZ_ASSERT(aIncrement == 1 || aIncrement == -1,
|
|
"We shouldn't have weird increments here");
|
|
|
|
// Assume that the ordinal comes from the caller
|
|
int32_t oldOrdinal = mOrdinal;
|
|
mOrdinal = aNextOrdinal;
|
|
|
|
// Try to get value directly from the list-item, if it specifies a
|
|
// value attribute. Note: we do this with our parent's content
|
|
// because our parent is the list-item.
|
|
nsIContent* parentContent = GetParent()->GetContent();
|
|
if (parentContent) {
|
|
nsGenericHTMLElement* hc = nsGenericHTMLElement::FromNode(parentContent);
|
|
if (hc) {
|
|
const nsAttrValue* attr = hc->GetParsedAttr(nsGkAtoms::value);
|
|
if (attr && attr->Type() == nsAttrValue::eInteger) {
|
|
// Use ordinal specified by the value attribute
|
|
mOrdinal = attr->GetIntegerValue();
|
|
}
|
|
}
|
|
}
|
|
|
|
*aChanged = oldOrdinal != mOrdinal;
|
|
|
|
return nsCounterManager::IncrementCounter(mOrdinal, aIncrement);
|
|
}
|
|
|
|
void nsBulletFrame::GetListItemText(nsAString& aResult) {
|
|
CounterStyle* style = StyleList()->mCounterStyle;
|
|
NS_ASSERTION(style->GetStyle() != NS_STYLE_LIST_STYLE_NONE &&
|
|
style->GetStyle() != NS_STYLE_LIST_STYLE_DISC &&
|
|
style->GetStyle() != NS_STYLE_LIST_STYLE_CIRCLE &&
|
|
style->GetStyle() != NS_STYLE_LIST_STYLE_SQUARE &&
|
|
style->GetStyle() != NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED &&
|
|
style->GetStyle() != NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN,
|
|
"we should be using specialized code for these types");
|
|
|
|
bool isRTL;
|
|
nsAutoString counter, prefix, suffix;
|
|
style->GetPrefix(prefix);
|
|
style->GetSuffix(suffix);
|
|
style->GetCounterText(mOrdinal, GetWritingMode(), counter, isRTL);
|
|
|
|
aResult.Truncate();
|
|
aResult.Append(prefix);
|
|
if (GetWritingMode().IsBidiLTR() != isRTL) {
|
|
aResult.Append(counter);
|
|
} else {
|
|
// RLM = 0x200f, LRM = 0x200e
|
|
char16_t mark = isRTL ? 0x200f : 0x200e;
|
|
aResult.Append(mark);
|
|
aResult.Append(counter);
|
|
aResult.Append(mark);
|
|
}
|
|
aResult.Append(suffix);
|
|
}
|
|
|
|
#define MIN_BULLET_SIZE 1
|
|
|
|
void nsBulletFrame::AppendSpacingToPadding(nsFontMetrics* aFontMetrics,
|
|
LogicalMargin* aPadding) {
|
|
aPadding->IEnd(GetWritingMode()) += aFontMetrics->EmHeight() / 2;
|
|
}
|
|
|
|
void nsBulletFrame::GetDesiredSize(nsPresContext* aCX,
|
|
gfxContext* aRenderingContext,
|
|
ReflowOutput& aMetrics,
|
|
float aFontSizeInflation,
|
|
LogicalMargin* aPadding) {
|
|
// Reset our padding. If we need it, we'll set it below.
|
|
WritingMode wm = GetWritingMode();
|
|
aPadding->SizeTo(wm, 0, 0, 0, 0);
|
|
LogicalSize finalSize(wm);
|
|
|
|
const nsStyleList* myList = StyleList();
|
|
nscoord ascent;
|
|
RefPtr<nsFontMetrics> fm =
|
|
nsLayoutUtils::GetFontMetricsForFrame(this, aFontSizeInflation);
|
|
|
|
RemoveStateBits(BULLET_FRAME_IMAGE_LOADING);
|
|
|
|
if (myList->GetListStyleImage() && mImageRequest) {
|
|
uint32_t status;
|
|
mImageRequest->GetImageStatus(&status);
|
|
if (status & imgIRequest::STATUS_SIZE_AVAILABLE &&
|
|
!(status & imgIRequest::STATUS_ERROR)) {
|
|
// auto size the image
|
|
finalSize.ISize(wm) = mIntrinsicSize.ISize(wm);
|
|
aMetrics.SetBlockStartAscent(finalSize.BSize(wm) =
|
|
mIntrinsicSize.BSize(wm));
|
|
aMetrics.SetSize(wm, finalSize);
|
|
|
|
AppendSpacingToPadding(fm, aPadding);
|
|
|
|
AddStateBits(BULLET_FRAME_IMAGE_LOADING);
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
// If we're getting our desired size and don't have an image, reset
|
|
// mIntrinsicSize to (0,0). Otherwise, if we used to have an image, it
|
|
// changed, and the new one is coming in, but we're reflowing before it's
|
|
// fully there, we'll end up with mIntrinsicSize not matching our size, but
|
|
// won't trigger a reflow in OnStartContainer (because mIntrinsicSize will
|
|
// match the image size).
|
|
mIntrinsicSize.SizeTo(wm, 0, 0);
|
|
|
|
nscoord bulletSize;
|
|
|
|
nsAutoString text;
|
|
switch (myList->mCounterStyle->GetStyle()) {
|
|
case NS_STYLE_LIST_STYLE_NONE:
|
|
finalSize.ISize(wm) = finalSize.BSize(wm) = 0;
|
|
aMetrics.SetBlockStartAscent(0);
|
|
break;
|
|
|
|
case NS_STYLE_LIST_STYLE_DISC:
|
|
case NS_STYLE_LIST_STYLE_CIRCLE:
|
|
case NS_STYLE_LIST_STYLE_SQUARE: {
|
|
ascent = fm->MaxAscent();
|
|
bulletSize = std::max(nsPresContext::CSSPixelsToAppUnits(MIN_BULLET_SIZE),
|
|
NSToCoordRound(0.8f * (float(ascent) / 2.0f)));
|
|
aPadding->BEnd(wm) = NSToCoordRound(float(ascent) / 8.0f);
|
|
finalSize.ISize(wm) = finalSize.BSize(wm) = bulletSize;
|
|
aMetrics.SetBlockStartAscent(bulletSize + aPadding->BEnd(wm));
|
|
AppendSpacingToPadding(fm, aPadding);
|
|
break;
|
|
}
|
|
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN:
|
|
ascent = fm->EmAscent();
|
|
bulletSize = std::max(nsPresContext::CSSPixelsToAppUnits(MIN_BULLET_SIZE),
|
|
NSToCoordRound(0.75f * ascent));
|
|
aPadding->BEnd(wm) = NSToCoordRound(0.125f * ascent);
|
|
finalSize.ISize(wm) = finalSize.BSize(wm) = bulletSize;
|
|
if (!wm.IsVertical()) {
|
|
aMetrics.SetBlockStartAscent(bulletSize + aPadding->BEnd(wm));
|
|
}
|
|
AppendSpacingToPadding(fm, aPadding);
|
|
break;
|
|
|
|
default:
|
|
GetListItemText(text);
|
|
finalSize.BSize(wm) = fm->MaxHeight();
|
|
finalSize.ISize(wm) = nsLayoutUtils::AppUnitWidthOfStringBidi(
|
|
text, this, *fm, *aRenderingContext);
|
|
aMetrics.SetBlockStartAscent(wm.IsLineInverted() ? fm->MaxDescent()
|
|
: fm->MaxAscent());
|
|
break;
|
|
}
|
|
aMetrics.SetSize(wm, finalSize);
|
|
}
|
|
|
|
void nsBulletFrame::Reflow(nsPresContext* aPresContext, ReflowOutput& aMetrics,
|
|
const ReflowInput& aReflowInput,
|
|
nsReflowStatus& aStatus) {
|
|
MarkInReflow();
|
|
DO_GLOBAL_REFLOW_COUNT("nsBulletFrame");
|
|
DISPLAY_REFLOW(aPresContext, this, aReflowInput, aMetrics, aStatus);
|
|
MOZ_ASSERT(aStatus.IsEmpty(), "The reflow status should be empty!");
|
|
|
|
float inflation = nsLayoutUtils::FontSizeInflationFor(this);
|
|
SetFontSizeInflation(inflation);
|
|
|
|
// Get the base size
|
|
GetDesiredSize(aPresContext, aReflowInput.mRenderingContext, aMetrics,
|
|
inflation, &mPadding);
|
|
|
|
// Add in the border and padding; split the top/bottom between the
|
|
// ascent and descent to make things look nice
|
|
WritingMode wm = aReflowInput.GetWritingMode();
|
|
const LogicalMargin& bp = aReflowInput.ComputedLogicalBorderPadding();
|
|
mPadding.BStart(wm) += NSToCoordRound(bp.BStart(wm) * inflation);
|
|
mPadding.IEnd(wm) += NSToCoordRound(bp.IEnd(wm) * inflation);
|
|
mPadding.BEnd(wm) += NSToCoordRound(bp.BEnd(wm) * inflation);
|
|
mPadding.IStart(wm) += NSToCoordRound(bp.IStart(wm) * inflation);
|
|
|
|
WritingMode lineWM = aMetrics.GetWritingMode();
|
|
LogicalMargin linePadding = mPadding.ConvertTo(lineWM, wm);
|
|
aMetrics.ISize(lineWM) += linePadding.IStartEnd(lineWM);
|
|
aMetrics.BSize(lineWM) += linePadding.BStartEnd(lineWM);
|
|
aMetrics.SetBlockStartAscent(aMetrics.BlockStartAscent() +
|
|
linePadding.BStart(lineWM));
|
|
|
|
// XXX this is a bit of a hack, we're assuming that no glyphs used for bullets
|
|
// overflow their font-boxes. It'll do for now; to fix it for real, we really
|
|
// should rewrite all the text-handling code here to use gfxTextRun (bug
|
|
// 397294).
|
|
aMetrics.SetOverflowAreasToDesiredBounds();
|
|
|
|
NS_FRAME_SET_TRUNCATION(aStatus, aReflowInput, aMetrics);
|
|
}
|
|
|
|
/* virtual */ nscoord nsBulletFrame::GetMinISize(
|
|
gfxContext* aRenderingContext) {
|
|
WritingMode wm = GetWritingMode();
|
|
ReflowOutput reflowOutput(wm);
|
|
DISPLAY_MIN_INLINE_SIZE(this, reflowOutput.ISize(wm));
|
|
LogicalMargin padding(wm);
|
|
GetDesiredSize(PresContext(), aRenderingContext, reflowOutput, 1.0f,
|
|
&padding);
|
|
reflowOutput.ISize(wm) += padding.IStartEnd(wm);
|
|
return reflowOutput.ISize(wm);
|
|
}
|
|
|
|
/* virtual */ nscoord nsBulletFrame::GetPrefISize(
|
|
gfxContext* aRenderingContext) {
|
|
WritingMode wm = GetWritingMode();
|
|
ReflowOutput metrics(wm);
|
|
DISPLAY_PREF_INLINE_SIZE(this, metrics.ISize(wm));
|
|
LogicalMargin padding(wm);
|
|
GetDesiredSize(PresContext(), aRenderingContext, metrics, 1.0f, &padding);
|
|
metrics.ISize(wm) += padding.IStartEnd(wm);
|
|
return metrics.ISize(wm);
|
|
}
|
|
|
|
// If a bullet has zero size and is "ignorable" from its styling, we behave
|
|
// as if it doesn't exist, from a line-breaking/isize-computation perspective.
|
|
// Otherwise, we use the default implementation, same as nsFrame.
|
|
static inline bool IsIgnoreable(const nsIFrame* aFrame, nscoord aISize) {
|
|
if (aISize != nscoord(0)) {
|
|
return false;
|
|
}
|
|
auto listStyle = aFrame->StyleList();
|
|
return listStyle->mCounterStyle->IsNone() && !listStyle->GetListStyleImage();
|
|
}
|
|
|
|
/* virtual */ void nsBulletFrame::AddInlineMinISize(
|
|
gfxContext* aRenderingContext, nsIFrame::InlineMinISizeData* aData) {
|
|
nscoord isize = nsLayoutUtils::IntrinsicForContainer(
|
|
aRenderingContext, this, nsLayoutUtils::MIN_ISIZE);
|
|
if (MOZ_LIKELY(!::IsIgnoreable(this, isize))) {
|
|
aData->DefaultAddInlineMinISize(this, isize);
|
|
}
|
|
}
|
|
|
|
/* virtual */ void nsBulletFrame::AddInlinePrefISize(
|
|
gfxContext* aRenderingContext, nsIFrame::InlinePrefISizeData* aData) {
|
|
nscoord isize = nsLayoutUtils::IntrinsicForContainer(
|
|
aRenderingContext, this, nsLayoutUtils::PREF_ISIZE);
|
|
if (MOZ_LIKELY(!::IsIgnoreable(this, isize))) {
|
|
aData->DefaultAddInlinePrefISize(isize);
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsBulletFrame::Notify(imgIRequest* aRequest, int32_t aType,
|
|
const nsIntRect* aData) {
|
|
if (aType == imgINotificationObserver::SIZE_AVAILABLE) {
|
|
nsCOMPtr<imgIContainer> image;
|
|
aRequest->GetImage(getter_AddRefs(image));
|
|
return OnSizeAvailable(aRequest, image);
|
|
}
|
|
|
|
if (aType == imgINotificationObserver::FRAME_UPDATE) {
|
|
// The image has changed.
|
|
// Invalidate the entire content area. Maybe it's not optimal but it's
|
|
// simple and always correct, and I'll be a stunned mullet if it ever
|
|
// matters for performance
|
|
InvalidateFrame();
|
|
}
|
|
|
|
if (aType == imgINotificationObserver::IS_ANIMATED) {
|
|
// Register the image request with the refresh driver now that we know it's
|
|
// animated.
|
|
if (aRequest == mImageRequest) {
|
|
RegisterImageRequest(/* aKnownToBeAnimated = */ true);
|
|
}
|
|
}
|
|
|
|
if (aType == imgINotificationObserver::LOAD_COMPLETE) {
|
|
// Unconditionally start decoding for now.
|
|
// XXX(seth): We eventually want to decide whether to do this based on
|
|
// visibility. We should get that for free from bug 1091236.
|
|
nsCOMPtr<imgIContainer> container;
|
|
aRequest->GetImage(getter_AddRefs(container));
|
|
if (container) {
|
|
// Retrieve the intrinsic size of the image.
|
|
int32_t width = 0;
|
|
int32_t height = 0;
|
|
container->GetWidth(&width);
|
|
container->GetHeight(&height);
|
|
|
|
// Request a decode at that size.
|
|
container->RequestDecodeForSize(
|
|
IntSize(width, height), imgIContainer::DECODE_FLAGS_DEFAULT |
|
|
imgIContainer::FLAG_HIGH_QUALITY_SCALING);
|
|
}
|
|
|
|
InvalidateFrame();
|
|
}
|
|
|
|
if (aType == imgINotificationObserver::DECODE_COMPLETE) {
|
|
if (Document* parent = GetOurCurrentDoc()) {
|
|
nsCOMPtr<imgIContainer> container;
|
|
aRequest->GetImage(getter_AddRefs(container));
|
|
if (container) {
|
|
container->PropagateUseCounters(parent);
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
Document* nsBulletFrame::GetOurCurrentDoc() const {
|
|
nsIContent* parentContent = GetParent()->GetContent();
|
|
return parentContent ? parentContent->GetComposedDoc() : nullptr;
|
|
}
|
|
|
|
nsresult nsBulletFrame::OnSizeAvailable(imgIRequest* aRequest,
|
|
imgIContainer* aImage) {
|
|
if (!aImage) return NS_ERROR_INVALID_ARG;
|
|
if (!aRequest) return NS_ERROR_INVALID_ARG;
|
|
|
|
uint32_t status;
|
|
aRequest->GetImageStatus(&status);
|
|
if (status & imgIRequest::STATUS_ERROR) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nscoord w, h;
|
|
aImage->GetWidth(&w);
|
|
aImage->GetHeight(&h);
|
|
|
|
nsPresContext* presContext = PresContext();
|
|
|
|
LogicalSize newsize(GetWritingMode(),
|
|
nsSize(nsPresContext::CSSPixelsToAppUnits(w),
|
|
nsPresContext::CSSPixelsToAppUnits(h)));
|
|
|
|
if (mIntrinsicSize != newsize) {
|
|
mIntrinsicSize = newsize;
|
|
|
|
// Now that the size is available (or an error occurred), trigger
|
|
// a reflow of the bullet frame.
|
|
nsIPresShell* shell = presContext->GetPresShell();
|
|
if (shell) {
|
|
shell->FrameNeedsReflow(this, nsIPresShell::eStyleChange,
|
|
NS_FRAME_IS_DIRTY);
|
|
}
|
|
}
|
|
|
|
// Handle animations
|
|
aImage->SetAnimationMode(presContext->ImageAnimationMode());
|
|
// Ensure the animation (if any) is started. Note: There is no
|
|
// corresponding call to Decrement for this. This Increment will be
|
|
// 'cleaned up' by the Request when it is destroyed, but only then.
|
|
aRequest->IncrementAnimationConsumers();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsBulletFrame::GetLoadGroup(nsPresContext* aPresContext,
|
|
nsILoadGroup** aLoadGroup) {
|
|
if (!aPresContext) return;
|
|
|
|
MOZ_ASSERT(nullptr != aLoadGroup, "null OUT parameter pointer");
|
|
|
|
nsIPresShell* shell = aPresContext->GetPresShell();
|
|
|
|
if (!shell) return;
|
|
|
|
Document* doc = shell->GetDocument();
|
|
if (!doc) return;
|
|
|
|
*aLoadGroup = doc->GetDocumentLoadGroup().take();
|
|
}
|
|
|
|
float nsBulletFrame::GetFontSizeInflation() const {
|
|
if (!HasFontSizeInflation()) {
|
|
return 1.0f;
|
|
}
|
|
return GetProperty(FontSizeInflationProperty());
|
|
}
|
|
|
|
void nsBulletFrame::SetFontSizeInflation(float aInflation) {
|
|
if (aInflation == 1.0f) {
|
|
if (HasFontSizeInflation()) {
|
|
RemoveStateBits(BULLET_FRAME_HAS_FONT_INFLATION);
|
|
DeleteProperty(FontSizeInflationProperty());
|
|
}
|
|
return;
|
|
}
|
|
|
|
AddStateBits(BULLET_FRAME_HAS_FONT_INFLATION);
|
|
SetProperty(FontSizeInflationProperty(), aInflation);
|
|
}
|
|
|
|
already_AddRefed<imgIContainer> nsBulletFrame::GetImage() const {
|
|
if (mImageRequest && StyleList()->GetListStyleImage()) {
|
|
nsCOMPtr<imgIContainer> imageCon;
|
|
mImageRequest->GetImage(getter_AddRefs(imageCon));
|
|
return imageCon.forget();
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
nscoord nsBulletFrame::GetLogicalBaseline(WritingMode aWritingMode) const {
|
|
nscoord ascent = 0, baselinePadding;
|
|
if (GetStateBits() & BULLET_FRAME_IMAGE_LOADING) {
|
|
ascent = BSize(aWritingMode);
|
|
} else {
|
|
RefPtr<nsFontMetrics> fm =
|
|
nsLayoutUtils::GetFontMetricsForFrame(this, GetFontSizeInflation());
|
|
CounterStyle* listStyleType = StyleList()->mCounterStyle;
|
|
switch (listStyleType->GetStyle()) {
|
|
case NS_STYLE_LIST_STYLE_NONE:
|
|
break;
|
|
|
|
case NS_STYLE_LIST_STYLE_DISC:
|
|
case NS_STYLE_LIST_STYLE_CIRCLE:
|
|
case NS_STYLE_LIST_STYLE_SQUARE:
|
|
ascent = fm->MaxAscent();
|
|
baselinePadding = NSToCoordRound(float(ascent) / 8.0f);
|
|
ascent = std::max(nsPresContext::CSSPixelsToAppUnits(MIN_BULLET_SIZE),
|
|
NSToCoordRound(0.8f * (float(ascent) / 2.0f)));
|
|
ascent += baselinePadding;
|
|
break;
|
|
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_CLOSED:
|
|
case NS_STYLE_LIST_STYLE_DISCLOSURE_OPEN:
|
|
ascent = fm->EmAscent();
|
|
baselinePadding = NSToCoordRound(0.125f * ascent);
|
|
ascent = std::max(nsPresContext::CSSPixelsToAppUnits(MIN_BULLET_SIZE),
|
|
NSToCoordRound(0.75f * ascent));
|
|
ascent += baselinePadding;
|
|
break;
|
|
|
|
default:
|
|
ascent = fm->MaxAscent();
|
|
break;
|
|
}
|
|
}
|
|
return ascent + GetLogicalUsedMargin(aWritingMode).BStart(aWritingMode);
|
|
}
|
|
|
|
void nsBulletFrame::GetSpokenText(nsAString& aText) {
|
|
CounterStyle* style = StyleList()->mCounterStyle;
|
|
bool isBullet;
|
|
style->GetSpokenCounterText(mOrdinal, GetWritingMode(), aText, isBullet);
|
|
if (isBullet) {
|
|
if (!style->IsNone()) {
|
|
aText.Append(' ');
|
|
}
|
|
} else {
|
|
nsAutoString prefix, suffix;
|
|
style->GetPrefix(prefix);
|
|
style->GetSuffix(suffix);
|
|
aText = prefix + aText + suffix;
|
|
}
|
|
}
|
|
|
|
void nsBulletFrame::RegisterImageRequest(bool aKnownToBeAnimated) {
|
|
if (mImageRequest) {
|
|
// mRequestRegistered is a bitfield; unpack it temporarily so we can take
|
|
// the address.
|
|
bool isRequestRegistered = mRequestRegistered;
|
|
|
|
if (aKnownToBeAnimated) {
|
|
nsLayoutUtils::RegisterImageRequest(PresContext(), mImageRequest,
|
|
&isRequestRegistered);
|
|
} else {
|
|
nsLayoutUtils::RegisterImageRequestIfAnimated(
|
|
PresContext(), mImageRequest, &isRequestRegistered);
|
|
}
|
|
|
|
mRequestRegistered = isRequestRegistered;
|
|
}
|
|
}
|
|
|
|
void nsBulletFrame::DeregisterAndCancelImageRequest() {
|
|
if (mImageRequest) {
|
|
// mRequestRegistered is a bitfield; unpack it temporarily so we can take
|
|
// the address.
|
|
bool isRequestRegistered = mRequestRegistered;
|
|
|
|
// Deregister our image request from the refresh driver.
|
|
nsLayoutUtils::DeregisterImageRequest(PresContext(), mImageRequest,
|
|
&isRequestRegistered);
|
|
|
|
mRequestRegistered = isRequestRegistered;
|
|
|
|
// Cancel the image request and forget about it.
|
|
mImageRequest->CancelAndForgetObserver(NS_ERROR_FAILURE);
|
|
mImageRequest = nullptr;
|
|
}
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS(nsBulletListener, imgINotificationObserver)
|
|
|
|
nsBulletListener::nsBulletListener() : mFrame(nullptr) {}
|
|
|
|
nsBulletListener::~nsBulletListener() {}
|
|
|
|
NS_IMETHODIMP
|
|
nsBulletListener::Notify(imgIRequest* aRequest, int32_t aType,
|
|
const nsIntRect* aData) {
|
|
if (!mFrame) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
return mFrame->Notify(aRequest, aType, aData);
|
|
}
|