зеркало из https://github.com/mozilla/gecko-dev.git
4242 строки
141 KiB
C++
4242 строки
141 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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#include "SimpleXULLeafFrame.h"
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#include "mozilla/AsyncEventDispatcher.h"
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#include "mozilla/ContentEvents.h"
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#include "mozilla/DebugOnly.h"
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#include "mozilla/EventDispatcher.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/Likely.h"
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#include "mozilla/LookAndFeel.h"
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#include "mozilla/MathAlgorithms.h"
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#include "mozilla/MouseEvents.h"
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#include "mozilla/PresShell.h"
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#include "mozilla/ResultExtensions.h"
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#include "mozilla/ScrollContainerFrame.h"
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#include "mozilla/Try.h"
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#include "mozilla/intl/Segmenter.h"
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#include "gfxUtils.h"
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#include "nsAlgorithm.h"
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#include "nsCOMPtr.h"
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#include "nsComponentManagerUtils.h"
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#include "nsFontMetrics.h"
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#include "nsITreeView.h"
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#include "nsPresContext.h"
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#include "nsNameSpaceManager.h"
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#include "nsTreeBodyFrame.h"
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#include "nsTreeSelection.h"
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#include "nsTreeImageListener.h"
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#include "nsGkAtoms.h"
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#include "nsCSSAnonBoxes.h"
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#include "gfxContext.h"
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#include "nsIContent.h"
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#include "mozilla/ComputedStyle.h"
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#include "mozilla/dom/Document.h"
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#include "mozilla/dom/ReferrerInfo.h"
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#include "mozilla/intl/Segmenter.h"
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#include "nsCSSRendering.h"
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#include "nsString.h"
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#include "nsContainerFrame.h"
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#include "nsView.h"
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#include "nsViewManager.h"
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#include "nsWidgetsCID.h"
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#include "nsIFrameInlines.h"
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#include "nsTreeContentView.h"
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#include "nsTreeUtils.h"
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#include "nsStyleConsts.h"
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#include "imgIRequest.h"
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#include "imgIContainer.h"
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#include "mozilla/dom/NodeInfo.h"
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#include "nsContentUtils.h"
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#include "nsLayoutUtils.h"
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#include "nsDisplayList.h"
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#include "mozilla/dom/CustomEvent.h"
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#include "mozilla/dom/Event.h"
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#include "mozilla/dom/ScriptSettings.h"
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#include "mozilla/dom/ToJSValue.h"
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#include "mozilla/dom/TreeColumnBinding.h"
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#include <algorithm>
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#include "ScrollbarActivity.h"
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#ifdef ACCESSIBILITY
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# include "nsAccessibilityService.h"
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# include "nsIWritablePropertyBag2.h"
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#endif
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#include "nsBidiUtils.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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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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enum CroppingStyle { CropNone, CropLeft, CropRight, CropCenter, CropAuto };
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// FIXME: Maybe unify with MiddleCroppingBlockFrame?
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static void CropStringForWidth(nsAString& aText, gfxContext& aRenderingContext,
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nsFontMetrics& aFontMetrics, nscoord aWidth,
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CroppingStyle aCropType) {
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DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
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// See if the width is even smaller than the ellipsis
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// If so, clear the text completely.
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const nsDependentString& kEllipsis = nsContentUtils::GetLocalizedEllipsis();
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aFontMetrics.SetTextRunRTL(false);
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nscoord ellipsisWidth =
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nsLayoutUtils::AppUnitWidthOfString(kEllipsis, aFontMetrics, drawTarget);
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if (ellipsisWidth > aWidth) {
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aText.Truncate(0);
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return;
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}
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if (ellipsisWidth == aWidth) {
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aText.Assign(kEllipsis);
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return;
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}
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// We will be drawing an ellipsis, thank you very much.
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// Subtract out the required width of the ellipsis.
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// This is the total remaining width we have to play with.
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aWidth -= ellipsisWidth;
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using mozilla::intl::GraphemeClusterBreakIteratorUtf16;
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using mozilla::intl::GraphemeClusterBreakReverseIteratorUtf16;
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// Now we crop. This is quite basic: it will not be really accurate in the
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// presence of complex scripts with contextual shaping, etc., as it measures
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// each grapheme cluster in isolation, not in its proper context.
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switch (aCropType) {
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case CropAuto:
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case CropNone:
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case CropRight: {
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const Span text(aText);
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GraphemeClusterBreakIteratorUtf16 iter(text);
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uint32_t pos = 0;
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nscoord totalWidth = 0;
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while (Maybe<uint32_t> nextPos = iter.Next()) {
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const nscoord charWidth = nsLayoutUtils::AppUnitWidthOfString(
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text.FromTo(pos, *nextPos), aFontMetrics, drawTarget);
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if (totalWidth + charWidth > aWidth) {
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break;
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}
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pos = *nextPos;
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totalWidth += charWidth;
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}
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if (pos < aText.Length()) {
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aText.Replace(pos, aText.Length() - pos, kEllipsis);
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}
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} break;
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case CropLeft: {
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const Span text(aText);
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GraphemeClusterBreakReverseIteratorUtf16 iter(text);
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uint32_t pos = text.Length();
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nscoord totalWidth = 0;
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// nextPos is decreasing since we use a reverse iterator.
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while (Maybe<uint32_t> nextPos = iter.Next()) {
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const nscoord charWidth = nsLayoutUtils::AppUnitWidthOfString(
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text.FromTo(*nextPos, pos), aFontMetrics, drawTarget);
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if (totalWidth + charWidth > aWidth) {
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break;
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}
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pos = *nextPos;
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totalWidth += charWidth;
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}
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if (pos > 0) {
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aText.Replace(0, pos, kEllipsis);
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}
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} break;
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case CropCenter: {
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const Span text(aText);
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nscoord totalWidth = 0;
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GraphemeClusterBreakIteratorUtf16 leftIter(text);
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GraphemeClusterBreakReverseIteratorUtf16 rightIter(text);
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uint32_t leftPos = 0;
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uint32_t rightPos = text.Length();
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while (leftPos < rightPos) {
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Maybe<uint32_t> nextPos = leftIter.Next();
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nscoord charWidth = nsLayoutUtils::AppUnitWidthOfString(
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text.FromTo(leftPos, *nextPos), aFontMetrics, drawTarget);
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if (totalWidth + charWidth > aWidth) {
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break;
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}
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leftPos = *nextPos;
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totalWidth += charWidth;
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if (leftPos >= rightPos) {
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break;
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}
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nextPos = rightIter.Next();
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charWidth = nsLayoutUtils::AppUnitWidthOfString(
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text.FromTo(*nextPos, rightPos), aFontMetrics, drawTarget);
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if (totalWidth + charWidth > aWidth) {
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break;
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}
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rightPos = *nextPos;
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totalWidth += charWidth;
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}
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if (leftPos < rightPos) {
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aText.Replace(leftPos, rightPos - leftPos, kEllipsis);
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}
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} break;
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}
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}
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// Function that cancels all the image requests in our cache.
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void nsTreeBodyFrame::CancelImageRequests() {
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for (nsTreeImageCacheEntry entry : mImageCache.Values()) {
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// If our imgIRequest object was registered with the refresh driver
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// then we need to deregister it.
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nsLayoutUtils::DeregisterImageRequest(PresContext(), entry.request,
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nullptr);
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entry.request->UnlockImage();
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entry.request->CancelAndForgetObserver(NS_BINDING_ABORTED);
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}
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}
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//
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// NS_NewTreeFrame
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//
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// Creates a new tree frame
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//
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nsIFrame* NS_NewTreeBodyFrame(PresShell* aPresShell, ComputedStyle* aStyle) {
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return new (aPresShell) nsTreeBodyFrame(aStyle, aPresShell->GetPresContext());
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsTreeBodyFrame)
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NS_QUERYFRAME_HEAD(nsTreeBodyFrame)
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NS_QUERYFRAME_ENTRY(nsIScrollbarMediator)
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NS_QUERYFRAME_ENTRY(nsTreeBodyFrame)
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NS_QUERYFRAME_TAIL_INHERITING(SimpleXULLeafFrame)
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// Constructor
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nsTreeBodyFrame::nsTreeBodyFrame(ComputedStyle* aStyle,
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nsPresContext* aPresContext)
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: SimpleXULLeafFrame(aStyle, aPresContext, kClassID),
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mTopRowIndex(0),
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mPageLength(0),
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mHorzPosition(0),
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mOriginalHorzWidth(-1),
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mHorzWidth(0),
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mAdjustWidth(0),
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mRowHeight(0),
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mIndentation(0),
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mUpdateBatchNest(0),
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mRowCount(0),
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mMouseOverRow(-1),
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mFocused(false),
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mHasFixedRowCount(false),
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mVerticalOverflow(false),
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mHorizontalOverflow(false),
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mReflowCallbackPosted(false),
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mCheckingOverflow(false) {
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mColumns = new nsTreeColumns(this);
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}
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// Destructor
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nsTreeBodyFrame::~nsTreeBodyFrame() {
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CancelImageRequests();
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DetachImageListeners();
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}
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static void GetBorderPadding(ComputedStyle* aStyle, nsMargin& aMargin) {
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aMargin.SizeTo(0, 0, 0, 0);
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aStyle->StylePadding()->GetPadding(aMargin);
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aMargin += aStyle->StyleBorder()->GetComputedBorder();
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}
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static void AdjustForBorderPadding(ComputedStyle* aStyle, nsRect& aRect) {
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nsMargin borderPadding(0, 0, 0, 0);
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GetBorderPadding(aStyle, borderPadding);
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aRect.Deflate(borderPadding);
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}
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void nsTreeBodyFrame::Init(nsIContent* aContent, nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) {
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SimpleXULLeafFrame::Init(aContent, aParent, aPrevInFlow);
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mIndentation = GetIndentation();
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mRowHeight = GetRowHeight();
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// Call GetBaseElement so that mTree is assigned.
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RefPtr<XULTreeElement> tree(GetBaseElement());
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if (MOZ_LIKELY(tree)) {
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nsAutoString rows;
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if (tree->GetAttr(nsGkAtoms::rows, rows)) {
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nsresult err;
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mPageLength = rows.ToInteger(&err);
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mHasFixedRowCount = true;
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}
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}
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if (PresContext()->UseOverlayScrollbars()) {
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mScrollbarActivity =
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new ScrollbarActivity(static_cast<nsIScrollbarMediator*>(this));
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}
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}
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void nsTreeBodyFrame::Destroy(DestroyContext& aContext) {
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if (mScrollbarActivity) {
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mScrollbarActivity->Destroy();
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mScrollbarActivity = nullptr;
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}
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mScrollEvent.Revoke();
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// Make sure we cancel any posted callbacks.
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if (mReflowCallbackPosted) {
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PresShell()->CancelReflowCallback(this);
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mReflowCallbackPosted = false;
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}
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if (mColumns) mColumns->SetTree(nullptr);
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RefPtr tree = mTree;
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if (nsCOMPtr<nsITreeView> view = std::move(mView)) {
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nsCOMPtr<nsITreeSelection> sel;
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view->GetSelection(getter_AddRefs(sel));
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if (sel) {
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sel->SetTree(nullptr);
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}
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view->SetTree(nullptr);
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}
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// Make this call now because view->SetTree can run js which can undo this
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// call.
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if (tree) {
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tree->BodyDestroyed(mTopRowIndex);
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}
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if (mTree && mTree != tree) {
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mTree->BodyDestroyed(mTopRowIndex);
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}
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SimpleXULLeafFrame::Destroy(aContext);
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}
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void nsTreeBodyFrame::EnsureView() {
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if (mView) {
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return;
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}
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if (PresShell()->IsReflowLocked()) {
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if (!mReflowCallbackPosted) {
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mReflowCallbackPosted = true;
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PresShell()->PostReflowCallback(this);
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}
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return;
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}
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AutoWeakFrame weakFrame(this);
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RefPtr<XULTreeElement> tree = GetBaseElement();
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if (!tree) {
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return;
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}
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nsCOMPtr<nsITreeView> treeView = tree->GetView();
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if (!treeView || !weakFrame.IsAlive()) {
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return;
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}
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int32_t rowIndex = tree->GetCachedTopVisibleRow();
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// Set our view.
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SetView(treeView);
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NS_ENSURE_TRUE_VOID(weakFrame.IsAlive());
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// Scroll to the given row.
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// XXX is this optimal if we haven't laid out yet?
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ScrollToRow(rowIndex);
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NS_ENSURE_TRUE_VOID(weakFrame.IsAlive());
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}
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void nsTreeBodyFrame::ManageReflowCallback() {
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const nscoord horzWidth = CalcHorzWidth(GetScrollParts());
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if (!mReflowCallbackPosted) {
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if (!mLastReflowRect || !mLastReflowRect->IsEqualEdges(mRect) ||
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mHorzWidth != horzWidth) {
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PresShell()->PostReflowCallback(this);
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mReflowCallbackPosted = true;
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mOriginalHorzWidth = mHorzWidth;
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}
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} else if (mHorzWidth != horzWidth && mOriginalHorzWidth == horzWidth) {
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// FIXME(emilio): This doesn't seem sound to me, if the rect changes in the
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// block axis.
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PresShell()->CancelReflowCallback(this);
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mReflowCallbackPosted = false;
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mOriginalHorzWidth = -1;
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}
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mLastReflowRect = Some(mRect);
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mHorzWidth = horzWidth;
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}
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nscoord nsTreeBodyFrame::GetIntrinsicBSize() {
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return mHasFixedRowCount ? mRowHeight * mPageLength : 0;
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}
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void nsTreeBodyFrame::DidReflow(nsPresContext* aPresContext,
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const ReflowInput* aReflowInput) {
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ManageReflowCallback();
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SimpleXULLeafFrame::DidReflow(aPresContext, aReflowInput);
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}
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bool nsTreeBodyFrame::ReflowFinished() {
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if (!mView) {
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AutoWeakFrame weakFrame(this);
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EnsureView();
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NS_ENSURE_TRUE(weakFrame.IsAlive(), false);
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}
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if (mView) {
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CalcInnerBox();
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ScrollParts parts = GetScrollParts();
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mHorzWidth = CalcHorzWidth(parts);
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if (!mHasFixedRowCount) {
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mPageLength =
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(mRowHeight > 0) ? (mInnerBox.height / mRowHeight) : mRowCount;
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}
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int32_t lastPageTopRow = std::max(0, mRowCount - mPageLength);
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if (mTopRowIndex > lastPageTopRow)
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ScrollToRowInternal(parts, lastPageTopRow);
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XULTreeElement* treeContent = GetBaseElement();
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if (treeContent && treeContent->AttrValueIs(
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kNameSpaceID_None, nsGkAtoms::keepcurrentinview,
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nsGkAtoms::_true, eCaseMatters)) {
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// make sure that the current selected item is still
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// visible after the tree changes size.
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if (nsCOMPtr<nsITreeSelection> sel = GetSelection()) {
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int32_t currentIndex;
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sel->GetCurrentIndex(¤tIndex);
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if (currentIndex != -1) {
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EnsureRowIsVisibleInternal(parts, currentIndex);
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}
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}
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}
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if (!FullScrollbarsUpdate(false)) {
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return false;
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}
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}
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mReflowCallbackPosted = false;
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return false;
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}
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void nsTreeBodyFrame::ReflowCallbackCanceled() {
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mReflowCallbackPosted = false;
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}
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nsresult nsTreeBodyFrame::GetView(nsITreeView** aView) {
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*aView = nullptr;
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AutoWeakFrame weakFrame(this);
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EnsureView();
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NS_ENSURE_STATE(weakFrame.IsAlive());
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NS_IF_ADDREF(*aView = mView);
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return NS_OK;
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}
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nsresult nsTreeBodyFrame::SetView(nsITreeView* aView) {
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if (aView == mView) {
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return NS_OK;
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}
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// First clear out the old view.
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nsCOMPtr<nsITreeView> oldView = std::move(mView);
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if (oldView) {
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AutoWeakFrame weakFrame(this);
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nsCOMPtr<nsITreeSelection> sel;
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oldView->GetSelection(getter_AddRefs(sel));
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if (sel) {
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sel->SetTree(nullptr);
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}
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oldView->SetTree(nullptr);
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NS_ENSURE_STATE(weakFrame.IsAlive());
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// Only reset the top row index and delete the columns if we had an old
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// non-null view.
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mTopRowIndex = 0;
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}
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// Tree, meet the view.
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mView = aView;
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// Changing the view causes us to refetch our data. This will
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// necessarily entail a full invalidation of the tree.
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Invalidate();
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RefPtr<XULTreeElement> treeContent = GetBaseElement();
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if (treeContent) {
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#ifdef ACCESSIBILITY
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if (nsAccessibilityService* accService = GetAccService()) {
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accService->TreeViewChanged(PresContext()->GetPresShell(), treeContent,
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mView);
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}
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#endif // #ifdef ACCESSIBILITY
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FireDOMEvent(u"TreeViewChanged"_ns, treeContent);
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}
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if (aView) {
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// Give the view a new empty selection object to play with, but only if it
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// doesn't have one already.
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nsCOMPtr<nsITreeSelection> sel;
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aView->GetSelection(getter_AddRefs(sel));
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if (sel) {
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sel->SetTree(treeContent);
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} else {
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NS_NewTreeSelection(treeContent, getter_AddRefs(sel));
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aView->SetSelection(sel);
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}
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// View, meet the tree.
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AutoWeakFrame weakFrame(this);
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aView->SetTree(treeContent);
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NS_ENSURE_STATE(weakFrame.IsAlive());
|
|
aView->GetRowCount(&mRowCount);
|
|
|
|
if (!PresShell()->IsReflowLocked()) {
|
|
// The scrollbar will need to be updated.
|
|
FullScrollbarsUpdate(false);
|
|
} else if (!mReflowCallbackPosted) {
|
|
mReflowCallbackPosted = true;
|
|
PresShell()->PostReflowCallback(this);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
already_AddRefed<nsITreeSelection> nsTreeBodyFrame::GetSelection() const {
|
|
nsCOMPtr<nsITreeSelection> sel;
|
|
if (nsCOMPtr<nsITreeView> view = GetExistingView()) {
|
|
view->GetSelection(getter_AddRefs(sel));
|
|
}
|
|
return sel.forget();
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::SetFocused(bool aFocused) {
|
|
if (mFocused != aFocused) {
|
|
mFocused = aFocused;
|
|
if (nsCOMPtr<nsITreeSelection> sel = GetSelection()) {
|
|
sel->InvalidateSelection();
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::GetTreeBody(Element** aElement) {
|
|
// NS_ASSERTION(mContent, "no content, see bug #104878");
|
|
if (!mContent) return NS_ERROR_NULL_POINTER;
|
|
|
|
RefPtr<Element> element = mContent->AsElement();
|
|
element.forget(aElement);
|
|
return NS_OK;
|
|
}
|
|
|
|
int32_t nsTreeBodyFrame::RowHeight() const {
|
|
return nsPresContext::AppUnitsToIntCSSPixels(mRowHeight);
|
|
}
|
|
|
|
int32_t nsTreeBodyFrame::RowWidth() {
|
|
return nsPresContext::AppUnitsToIntCSSPixels(CalcHorzWidth(GetScrollParts()));
|
|
}
|
|
|
|
int32_t nsTreeBodyFrame::GetHorizontalPosition() const {
|
|
return nsPresContext::AppUnitsToIntCSSPixels(mHorzPosition);
|
|
}
|
|
|
|
Maybe<CSSIntRegion> nsTreeBodyFrame::GetSelectionRegion() {
|
|
if (!mView) {
|
|
return Nothing();
|
|
}
|
|
|
|
AutoWeakFrame wf(this);
|
|
nsCOMPtr<nsITreeSelection> selection = GetSelection();
|
|
if (!selection || !wf.IsAlive()) {
|
|
return Nothing();
|
|
}
|
|
|
|
nsIntRect rect = mRect.ToOutsidePixels(AppUnitsPerCSSPixel());
|
|
|
|
nsIFrame* rootFrame = PresShell()->GetRootFrame();
|
|
nsPoint origin = GetOffsetTo(rootFrame);
|
|
|
|
CSSIntRegion region;
|
|
|
|
// iterate through the visible rows and add the selected ones to the
|
|
// drag region
|
|
int32_t x = nsPresContext::AppUnitsToIntCSSPixels(origin.x);
|
|
int32_t y = nsPresContext::AppUnitsToIntCSSPixels(origin.y);
|
|
int32_t top = y;
|
|
int32_t end = LastVisibleRow();
|
|
int32_t rowHeight = nsPresContext::AppUnitsToIntCSSPixels(mRowHeight);
|
|
for (int32_t i = mTopRowIndex; i <= end; i++) {
|
|
bool isSelected;
|
|
selection->IsSelected(i, &isSelected);
|
|
if (isSelected) {
|
|
region.OrWith(CSSIntRect(x, y, rect.width, rowHeight));
|
|
}
|
|
y += rowHeight;
|
|
}
|
|
|
|
// clip to the tree boundary in case one row extends past it
|
|
region.AndWith(CSSIntRect(x, top, rect.width, rect.height));
|
|
|
|
return Some(region);
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::Invalidate() {
|
|
if (mUpdateBatchNest) return NS_OK;
|
|
|
|
InvalidateFrame();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::InvalidateColumn(nsTreeColumn* aCol) {
|
|
if (mUpdateBatchNest) return NS_OK;
|
|
|
|
if (!aCol) return NS_ERROR_INVALID_ARG;
|
|
|
|
#ifdef ACCESSIBILITY
|
|
if (GetAccService()) {
|
|
FireInvalidateEvent(-1, -1, aCol, aCol);
|
|
}
|
|
#endif // #ifdef ACCESSIBILITY
|
|
|
|
nsRect columnRect;
|
|
nsresult rv = aCol->GetRect(this, mInnerBox.y, mInnerBox.height, &columnRect);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// When false then column is out of view
|
|
if (OffsetForHorzScroll(columnRect, true))
|
|
InvalidateFrameWithRect(columnRect);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::InvalidateRow(int32_t aIndex) {
|
|
if (mUpdateBatchNest) return NS_OK;
|
|
|
|
#ifdef ACCESSIBILITY
|
|
if (GetAccService()) {
|
|
FireInvalidateEvent(aIndex, aIndex, nullptr, nullptr);
|
|
}
|
|
#endif // #ifdef ACCESSIBILITY
|
|
|
|
aIndex -= mTopRowIndex;
|
|
if (aIndex < 0 || aIndex > mPageLength) return NS_OK;
|
|
|
|
nsRect rowRect(mInnerBox.x, mInnerBox.y + mRowHeight * aIndex,
|
|
mInnerBox.width, mRowHeight);
|
|
InvalidateFrameWithRect(rowRect);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::InvalidateCell(int32_t aIndex, nsTreeColumn* aCol) {
|
|
if (mUpdateBatchNest) return NS_OK;
|
|
|
|
#ifdef ACCESSIBILITY
|
|
if (GetAccService()) {
|
|
FireInvalidateEvent(aIndex, aIndex, aCol, aCol);
|
|
}
|
|
#endif // #ifdef ACCESSIBILITY
|
|
|
|
aIndex -= mTopRowIndex;
|
|
if (aIndex < 0 || aIndex > mPageLength) return NS_OK;
|
|
|
|
if (!aCol) return NS_ERROR_INVALID_ARG;
|
|
|
|
nsRect cellRect;
|
|
nsresult rv = aCol->GetRect(this, mInnerBox.y + mRowHeight * aIndex,
|
|
mRowHeight, &cellRect);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (OffsetForHorzScroll(cellRect, true)) InvalidateFrameWithRect(cellRect);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::InvalidateRange(int32_t aStart, int32_t aEnd) {
|
|
if (mUpdateBatchNest) return NS_OK;
|
|
|
|
if (aStart == aEnd) return InvalidateRow(aStart);
|
|
|
|
int32_t last = LastVisibleRow();
|
|
if (aStart > aEnd || aEnd < mTopRowIndex || aStart > last) return NS_OK;
|
|
|
|
if (aStart < mTopRowIndex) aStart = mTopRowIndex;
|
|
|
|
if (aEnd > last) aEnd = last;
|
|
|
|
#ifdef ACCESSIBILITY
|
|
if (GetAccService()) {
|
|
int32_t end =
|
|
mRowCount > 0 ? ((mRowCount <= aEnd) ? mRowCount - 1 : aEnd) : 0;
|
|
FireInvalidateEvent(aStart, end, nullptr, nullptr);
|
|
}
|
|
#endif // #ifdef ACCESSIBILITY
|
|
|
|
nsRect rangeRect(mInnerBox.x,
|
|
mInnerBox.y + mRowHeight * (aStart - mTopRowIndex),
|
|
mInnerBox.width, mRowHeight * (aEnd - aStart + 1));
|
|
InvalidateFrameWithRect(rangeRect);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
static void FindScrollParts(nsIFrame* aCurrFrame,
|
|
nsTreeBodyFrame::ScrollParts* aResult) {
|
|
if (!aResult->mColumnsScrollFrame) {
|
|
ScrollContainerFrame* f = do_QueryFrame(aCurrFrame);
|
|
if (f) {
|
|
aResult->mColumnsFrame = aCurrFrame;
|
|
aResult->mColumnsScrollFrame = f;
|
|
}
|
|
}
|
|
|
|
if (nsScrollbarFrame* sf = do_QueryFrame(aCurrFrame)) {
|
|
if (!sf->IsHorizontal()) {
|
|
if (!aResult->mVScrollbar) {
|
|
aResult->mVScrollbar = sf;
|
|
}
|
|
} else {
|
|
if (!aResult->mHScrollbar) {
|
|
aResult->mHScrollbar = sf;
|
|
}
|
|
}
|
|
// don't bother searching inside a scrollbar
|
|
return;
|
|
}
|
|
|
|
nsIFrame* child = aCurrFrame->PrincipalChildList().FirstChild();
|
|
while (child && !child->GetContent()->IsRootOfNativeAnonymousSubtree() &&
|
|
(!aResult->mVScrollbar || !aResult->mHScrollbar ||
|
|
!aResult->mColumnsScrollFrame)) {
|
|
FindScrollParts(child, aResult);
|
|
child = child->GetNextSibling();
|
|
}
|
|
}
|
|
|
|
nsTreeBodyFrame::ScrollParts nsTreeBodyFrame::GetScrollParts() {
|
|
ScrollParts result = {nullptr, nullptr, nullptr, nullptr, nullptr, nullptr};
|
|
XULTreeElement* tree = GetBaseElement();
|
|
if (nsIFrame* treeFrame = tree ? tree->GetPrimaryFrame() : nullptr) {
|
|
// The way we do this, searching through the entire frame subtree, is pretty
|
|
// dumb! We should know where these frames are.
|
|
FindScrollParts(treeFrame, &result);
|
|
if (result.mHScrollbar) {
|
|
result.mHScrollbar->SetScrollbarMediatorContent(GetContent());
|
|
result.mHScrollbarContent = result.mHScrollbar->GetContent()->AsElement();
|
|
}
|
|
if (result.mVScrollbar) {
|
|
result.mVScrollbar->SetScrollbarMediatorContent(GetContent());
|
|
result.mVScrollbarContent = result.mVScrollbar->GetContent()->AsElement();
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void nsTreeBodyFrame::UpdateScrollbars(const ScrollParts& aParts) {
|
|
nscoord rowHeightAsPixels = nsPresContext::AppUnitsToIntCSSPixels(mRowHeight);
|
|
|
|
AutoWeakFrame weakFrame(this);
|
|
|
|
if (aParts.mVScrollbar) {
|
|
nsAutoString curPos;
|
|
curPos.AppendInt(mTopRowIndex * rowHeightAsPixels);
|
|
aParts.mVScrollbarContent->SetAttr(kNameSpaceID_None, nsGkAtoms::curpos,
|
|
curPos, true);
|
|
// 'this' might be deleted here
|
|
}
|
|
|
|
if (weakFrame.IsAlive() && aParts.mHScrollbar) {
|
|
nsAutoString curPos;
|
|
curPos.AppendInt(mHorzPosition);
|
|
aParts.mHScrollbarContent->SetAttr(kNameSpaceID_None, nsGkAtoms::curpos,
|
|
curPos, true);
|
|
// 'this' might be deleted here
|
|
}
|
|
|
|
if (weakFrame.IsAlive() && mScrollbarActivity) {
|
|
mScrollbarActivity->ActivityOccurred();
|
|
}
|
|
}
|
|
|
|
void nsTreeBodyFrame::CheckOverflow(const ScrollParts& aParts) {
|
|
bool verticalOverflowChanged = false;
|
|
bool horizontalOverflowChanged = false;
|
|
|
|
if (!mVerticalOverflow && mRowCount > mPageLength) {
|
|
mVerticalOverflow = true;
|
|
verticalOverflowChanged = true;
|
|
} else if (mVerticalOverflow && mRowCount <= mPageLength) {
|
|
mVerticalOverflow = false;
|
|
verticalOverflowChanged = true;
|
|
}
|
|
|
|
if (aParts.mColumnsFrame) {
|
|
nsRect bounds = aParts.mColumnsFrame->GetRect();
|
|
if (bounds.width != 0) {
|
|
/* Ignore overflows that are less than half a pixel. Yes these happen
|
|
all over the place when flex boxes are compressed real small.
|
|
Probably a result of a rounding errors somewhere in the layout code. */
|
|
bounds.width += nsPresContext::CSSPixelsToAppUnits(0.5f);
|
|
if (!mHorizontalOverflow && bounds.width < mHorzWidth) {
|
|
mHorizontalOverflow = true;
|
|
horizontalOverflowChanged = true;
|
|
} else if (mHorizontalOverflow && bounds.width >= mHorzWidth) {
|
|
mHorizontalOverflow = false;
|
|
horizontalOverflowChanged = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!horizontalOverflowChanged && !verticalOverflowChanged) {
|
|
return;
|
|
}
|
|
|
|
AutoWeakFrame weakFrame(this);
|
|
|
|
RefPtr<nsPresContext> presContext = PresContext();
|
|
RefPtr<mozilla::PresShell> presShell = presContext->GetPresShell();
|
|
nsCOMPtr<nsIContent> content = mContent;
|
|
|
|
if (verticalOverflowChanged) {
|
|
InternalScrollPortEvent event(
|
|
true, mVerticalOverflow ? eScrollPortOverflow : eScrollPortUnderflow,
|
|
nullptr);
|
|
event.mOrient = InternalScrollPortEvent::eVertical;
|
|
EventDispatcher::Dispatch(content, presContext, &event);
|
|
}
|
|
|
|
if (horizontalOverflowChanged) {
|
|
InternalScrollPortEvent event(
|
|
true, mHorizontalOverflow ? eScrollPortOverflow : eScrollPortUnderflow,
|
|
nullptr);
|
|
event.mOrient = InternalScrollPortEvent::eHorizontal;
|
|
EventDispatcher::Dispatch(content, presContext, &event);
|
|
}
|
|
|
|
// The synchronous event dispatch above can trigger reflow notifications.
|
|
// Flush those explicitly now, so that we can guard against potential infinite
|
|
// recursion. See bug 905909.
|
|
if (!weakFrame.IsAlive()) {
|
|
return;
|
|
}
|
|
NS_ASSERTION(!mCheckingOverflow,
|
|
"mCheckingOverflow should not already be set");
|
|
// Don't use AutoRestore since we want to not touch mCheckingOverflow if we
|
|
// fail the weakFrame.IsAlive() check below
|
|
mCheckingOverflow = true;
|
|
presShell->FlushPendingNotifications(FlushType::Layout);
|
|
if (!weakFrame.IsAlive()) {
|
|
return;
|
|
}
|
|
mCheckingOverflow = false;
|
|
}
|
|
|
|
void nsTreeBodyFrame::InvalidateScrollbars(const ScrollParts& aParts,
|
|
AutoWeakFrame& aWeakColumnsFrame) {
|
|
if (mUpdateBatchNest || !mView) return;
|
|
AutoWeakFrame weakFrame(this);
|
|
|
|
if (aParts.mVScrollbar) {
|
|
// Do Vertical Scrollbar
|
|
nsAutoString maxposStr;
|
|
|
|
nscoord rowHeightAsPixels =
|
|
nsPresContext::AppUnitsToIntCSSPixels(mRowHeight);
|
|
|
|
int32_t size = rowHeightAsPixels *
|
|
(mRowCount > mPageLength ? mRowCount - mPageLength : 0);
|
|
maxposStr.AppendInt(size);
|
|
aParts.mVScrollbarContent->SetAttr(kNameSpaceID_None, nsGkAtoms::maxpos,
|
|
maxposStr, true);
|
|
NS_ENSURE_TRUE_VOID(weakFrame.IsAlive());
|
|
|
|
// Also set our page increment and decrement.
|
|
nscoord pageincrement = mPageLength * rowHeightAsPixels;
|
|
nsAutoString pageStr;
|
|
pageStr.AppendInt(pageincrement);
|
|
aParts.mVScrollbarContent->SetAttr(kNameSpaceID_None,
|
|
nsGkAtoms::pageincrement, pageStr, true);
|
|
NS_ENSURE_TRUE_VOID(weakFrame.IsAlive());
|
|
}
|
|
|
|
if (aParts.mHScrollbar && aParts.mColumnsFrame &&
|
|
aWeakColumnsFrame.IsAlive()) {
|
|
// And now Horizontal scrollbar
|
|
nsRect bounds = aParts.mColumnsFrame->GetRect();
|
|
nsAutoString maxposStr;
|
|
|
|
maxposStr.AppendInt(mHorzWidth > bounds.width ? mHorzWidth - bounds.width
|
|
: 0);
|
|
aParts.mHScrollbarContent->SetAttr(kNameSpaceID_None, nsGkAtoms::maxpos,
|
|
maxposStr, true);
|
|
NS_ENSURE_TRUE_VOID(weakFrame.IsAlive());
|
|
|
|
nsAutoString pageStr;
|
|
pageStr.AppendInt(bounds.width);
|
|
aParts.mHScrollbarContent->SetAttr(kNameSpaceID_None,
|
|
nsGkAtoms::pageincrement, pageStr, true);
|
|
NS_ENSURE_TRUE_VOID(weakFrame.IsAlive());
|
|
|
|
pageStr.Truncate();
|
|
pageStr.AppendInt(nsPresContext::CSSPixelsToAppUnits(16));
|
|
aParts.mHScrollbarContent->SetAttr(kNameSpaceID_None, nsGkAtoms::increment,
|
|
pageStr, true);
|
|
}
|
|
|
|
if (weakFrame.IsAlive() && mScrollbarActivity) {
|
|
mScrollbarActivity->ActivityOccurred();
|
|
}
|
|
}
|
|
|
|
// Takes client x/y in pixels, converts them to appunits, and converts into
|
|
// values relative to this nsTreeBodyFrame frame.
|
|
nsPoint nsTreeBodyFrame::AdjustClientCoordsToBoxCoordSpace(int32_t aX,
|
|
int32_t aY) {
|
|
nsPoint point(nsPresContext::CSSPixelsToAppUnits(aX),
|
|
nsPresContext::CSSPixelsToAppUnits(aY));
|
|
|
|
nsPresContext* presContext = PresContext();
|
|
point -= GetOffsetTo(presContext->GetPresShell()->GetRootFrame());
|
|
|
|
// Adjust by the inner box coords, so that we're in the inner box's
|
|
// coordinate space.
|
|
point -= mInnerBox.TopLeft();
|
|
return point;
|
|
} // AdjustClientCoordsToBoxCoordSpace
|
|
|
|
int32_t nsTreeBodyFrame::GetRowAt(int32_t aX, int32_t aY) {
|
|
if (!mView) {
|
|
return 0;
|
|
}
|
|
|
|
nsPoint point = AdjustClientCoordsToBoxCoordSpace(aX, aY);
|
|
|
|
// Check if the coordinates are above our visible space.
|
|
if (point.y < 0) {
|
|
return -1;
|
|
}
|
|
|
|
return GetRowAtInternal(point.x, point.y);
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::GetCellAt(int32_t aX, int32_t aY, int32_t* aRow,
|
|
nsTreeColumn** aCol,
|
|
nsACString& aChildElt) {
|
|
if (!mView) return NS_OK;
|
|
|
|
nsPoint point = AdjustClientCoordsToBoxCoordSpace(aX, aY);
|
|
|
|
// Check if the coordinates are above our visible space.
|
|
if (point.y < 0) {
|
|
*aRow = -1;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsTreeColumn* col;
|
|
nsCSSAnonBoxPseudoStaticAtom* child;
|
|
GetCellAt(point.x, point.y, aRow, &col, &child);
|
|
|
|
if (col) {
|
|
NS_ADDREF(*aCol = col);
|
|
if (child == nsCSSAnonBoxes::mozTreeCell())
|
|
aChildElt.AssignLiteral("cell");
|
|
else if (child == nsCSSAnonBoxes::mozTreeTwisty())
|
|
aChildElt.AssignLiteral("twisty");
|
|
else if (child == nsCSSAnonBoxes::mozTreeImage())
|
|
aChildElt.AssignLiteral("image");
|
|
else if (child == nsCSSAnonBoxes::mozTreeCellText())
|
|
aChildElt.AssignLiteral("text");
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
//
|
|
// GetCoordsForCellItem
|
|
//
|
|
// Find the x/y location and width/height (all in PIXELS) of the given object
|
|
// in the given column.
|
|
//
|
|
// XXX IMPORTANT XXX:
|
|
// Hyatt says in the bug for this, that the following needs to be done:
|
|
// (1) You need to deal with overflow when computing cell rects. See other
|
|
// column iteration examples... if you don't deal with this, you'll mistakenly
|
|
// extend the cell into the scrollbar's rect.
|
|
//
|
|
// (2) You are adjusting the cell rect by the *row" border padding. That's
|
|
// wrong. You need to first adjust a row rect by its border/padding, and then
|
|
// the cell rect fits inside the adjusted row rect. It also can have
|
|
// border/padding as well as margins. The vertical direction isn't that
|
|
// important, but you need to get the horizontal direction right.
|
|
//
|
|
// (3) GetImageSize() does not include margins (but it does include
|
|
// border/padding). You need to make sure to add in the image's margins as well.
|
|
//
|
|
nsresult nsTreeBodyFrame::GetCoordsForCellItem(int32_t aRow, nsTreeColumn* aCol,
|
|
const nsACString& aElement,
|
|
int32_t* aX, int32_t* aY,
|
|
int32_t* aWidth,
|
|
int32_t* aHeight) {
|
|
*aX = 0;
|
|
*aY = 0;
|
|
*aWidth = 0;
|
|
*aHeight = 0;
|
|
|
|
bool isRTL = StyleVisibility()->mDirection == StyleDirection::Rtl;
|
|
nscoord currX = mInnerBox.x - mHorzPosition;
|
|
|
|
// The Rect for the requested item.
|
|
nsRect theRect;
|
|
|
|
nsPresContext* presContext = PresContext();
|
|
|
|
nsCOMPtr<nsITreeView> view = GetExistingView();
|
|
|
|
for (nsTreeColumn* currCol = mColumns->GetFirstColumn(); currCol;
|
|
currCol = currCol->GetNext()) {
|
|
// The Rect for the current cell.
|
|
nscoord colWidth;
|
|
#ifdef DEBUG
|
|
nsresult rv =
|
|
#endif
|
|
currCol->GetWidthInTwips(this, &colWidth);
|
|
NS_ASSERTION(NS_SUCCEEDED(rv), "invalid column");
|
|
|
|
nsRect cellRect(currX, mInnerBox.y + mRowHeight * (aRow - mTopRowIndex),
|
|
colWidth, mRowHeight);
|
|
|
|
// Check the ID of the current column to see if it matches. If it doesn't
|
|
// increment the current X value and continue to the next column.
|
|
if (currCol != aCol) {
|
|
currX += cellRect.width;
|
|
continue;
|
|
}
|
|
// Now obtain the properties for our cell.
|
|
PrefillPropertyArray(aRow, currCol);
|
|
|
|
nsAutoString properties;
|
|
view->GetCellProperties(aRow, currCol, properties);
|
|
nsTreeUtils::TokenizeProperties(properties, mScratchArray);
|
|
|
|
ComputedStyle* rowContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeRow());
|
|
|
|
// We don't want to consider any of the decorations that may be present
|
|
// on the current row, so we have to deflate the rect by the border and
|
|
// padding and offset its left and top coordinates appropriately.
|
|
AdjustForBorderPadding(rowContext, cellRect);
|
|
|
|
ComputedStyle* cellContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeCell());
|
|
|
|
constexpr auto cell = "cell"_ns;
|
|
if (currCol->IsCycler() || cell.Equals(aElement)) {
|
|
// If the current Column is a Cycler, then the Rect is just the cell - the
|
|
// margins. Similarly, if we're just being asked for the cell rect,
|
|
// provide it.
|
|
|
|
theRect = cellRect;
|
|
nsMargin cellMargin;
|
|
cellContext->StyleMargin()->GetMargin(cellMargin);
|
|
theRect.Deflate(cellMargin);
|
|
break;
|
|
}
|
|
|
|
// Since we're not looking for the cell, and since the cell isn't a cycler,
|
|
// we're looking for some subcomponent, and now we need to subtract the
|
|
// borders and padding of the cell from cellRect so this does not
|
|
// interfere with our computations.
|
|
AdjustForBorderPadding(cellContext, cellRect);
|
|
|
|
UniquePtr<gfxContext> rc =
|
|
presContext->PresShell()->CreateReferenceRenderingContext();
|
|
|
|
// Now we'll start making our way across the cell, starting at the edge of
|
|
// the cell and proceeding until we hit the right edge. |cellX| is the
|
|
// working X value that we will increment as we crawl from left to right.
|
|
nscoord cellX = cellRect.x;
|
|
nscoord remainWidth = cellRect.width;
|
|
|
|
if (currCol->IsPrimary()) {
|
|
// If the current Column is a Primary, then we need to take into account
|
|
// the indentation and possibly a twisty.
|
|
|
|
// The amount of indentation is the indentation width (|mIndentation|) by
|
|
// the level.
|
|
int32_t level;
|
|
view->GetLevel(aRow, &level);
|
|
if (!isRTL) cellX += mIndentation * level;
|
|
remainWidth -= mIndentation * level;
|
|
|
|
// Find the twisty rect by computing its size.
|
|
nsRect imageRect;
|
|
nsRect twistyRect(cellRect);
|
|
ComputedStyle* twistyContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeTwisty());
|
|
GetTwistyRect(aRow, currCol, imageRect, twistyRect, presContext,
|
|
twistyContext);
|
|
|
|
if ("twisty"_ns.Equals(aElement)) {
|
|
// If we're looking for the twisty Rect, just return the size
|
|
theRect = twistyRect;
|
|
break;
|
|
}
|
|
|
|
// Now we need to add in the margins of the twisty element, so that we
|
|
// can find the offset of the next element in the cell.
|
|
nsMargin twistyMargin;
|
|
twistyContext->StyleMargin()->GetMargin(twistyMargin);
|
|
twistyRect.Inflate(twistyMargin);
|
|
|
|
// Adjust our working X value with the twisty width (image size, margins,
|
|
// borders, padding.
|
|
if (!isRTL) cellX += twistyRect.width;
|
|
}
|
|
|
|
// Cell Image
|
|
ComputedStyle* imageContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeImage());
|
|
|
|
nsRect imageSize = GetImageSize(aRow, currCol, false, imageContext);
|
|
if ("image"_ns.Equals(aElement)) {
|
|
theRect = imageSize;
|
|
theRect.x = cellX;
|
|
theRect.y = cellRect.y;
|
|
break;
|
|
}
|
|
|
|
// Add in the margins of the cell image.
|
|
nsMargin imageMargin;
|
|
imageContext->StyleMargin()->GetMargin(imageMargin);
|
|
imageSize.Inflate(imageMargin);
|
|
|
|
// Increment cellX by the image width
|
|
if (!isRTL) cellX += imageSize.width;
|
|
|
|
// Cell Text
|
|
nsAutoString cellText;
|
|
view->GetCellText(aRow, currCol, cellText);
|
|
// We're going to measure this text so we need to ensure bidi is enabled if
|
|
// necessary
|
|
CheckTextForBidi(cellText);
|
|
|
|
// Create a scratch rect to represent the text rectangle, with the current
|
|
// X and Y coords, and a guess at the width and height. The width is the
|
|
// remaining width we have left to traverse in the cell, which will be the
|
|
// widest possible value for the text rect, and the row height.
|
|
nsRect textRect(cellX, cellRect.y, remainWidth, cellRect.height);
|
|
|
|
// Measure the width of the text. If the width of the text is greater than
|
|
// the remaining width available, then we just assume that the text has
|
|
// been cropped and use the remaining rect as the text Rect. Otherwise,
|
|
// we add in borders and padding to the text dimension and give that back.
|
|
ComputedStyle* textContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeCellText());
|
|
|
|
RefPtr<nsFontMetrics> fm =
|
|
nsLayoutUtils::GetFontMetricsForComputedStyle(textContext, presContext);
|
|
nscoord height = fm->MaxHeight();
|
|
|
|
nsMargin textMargin;
|
|
textContext->StyleMargin()->GetMargin(textMargin);
|
|
textRect.Deflate(textMargin);
|
|
|
|
// Center the text. XXX Obey vertical-align style prop?
|
|
if (height < textRect.height) {
|
|
textRect.y += (textRect.height - height) / 2;
|
|
textRect.height = height;
|
|
}
|
|
|
|
nsMargin bp(0, 0, 0, 0);
|
|
GetBorderPadding(textContext, bp);
|
|
textRect.height += bp.top + bp.bottom;
|
|
|
|
AdjustForCellText(cellText, aRow, currCol, *rc, *fm, textRect);
|
|
|
|
theRect = textRect;
|
|
}
|
|
|
|
if (isRTL) theRect.x = mInnerBox.width - theRect.x - theRect.width;
|
|
|
|
*aX = nsPresContext::AppUnitsToIntCSSPixels(theRect.x);
|
|
*aY = nsPresContext::AppUnitsToIntCSSPixels(theRect.y);
|
|
*aWidth = nsPresContext::AppUnitsToIntCSSPixels(theRect.width);
|
|
*aHeight = nsPresContext::AppUnitsToIntCSSPixels(theRect.height);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
int32_t nsTreeBodyFrame::GetRowAtInternal(nscoord aX, nscoord aY) {
|
|
if (mRowHeight <= 0) return -1;
|
|
|
|
// Now just mod by our total inner box height and add to our top row index.
|
|
int32_t row = (aY / mRowHeight) + mTopRowIndex;
|
|
|
|
// Check if the coordinates are below our visible space (or within our visible
|
|
// space but below any row).
|
|
if (row > mTopRowIndex + mPageLength || row >= mRowCount) return -1;
|
|
|
|
return row;
|
|
}
|
|
|
|
void nsTreeBodyFrame::CheckTextForBidi(nsAutoString& aText) {
|
|
// We could check to see whether the prescontext already has bidi enabled,
|
|
// but usually it won't, so it's probably faster to avoid the call to
|
|
// GetPresContext() when it's not needed.
|
|
if (HasRTLChars(aText)) {
|
|
PresContext()->SetBidiEnabled();
|
|
}
|
|
}
|
|
|
|
void nsTreeBodyFrame::AdjustForCellText(nsAutoString& aText, int32_t aRowIndex,
|
|
nsTreeColumn* aColumn,
|
|
gfxContext& aRenderingContext,
|
|
nsFontMetrics& aFontMetrics,
|
|
nsRect& aTextRect) {
|
|
MOZ_ASSERT(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
|
|
|
|
nscoord maxWidth = aTextRect.width;
|
|
bool widthIsGreater = nsLayoutUtils::StringWidthIsGreaterThan(
|
|
aText, aFontMetrics, drawTarget, maxWidth);
|
|
|
|
nsCOMPtr<nsITreeView> view = GetExistingView();
|
|
if (aColumn->Overflow()) {
|
|
DebugOnly<nsresult> rv;
|
|
nsTreeColumn* nextColumn = aColumn->GetNext();
|
|
while (nextColumn && widthIsGreater) {
|
|
while (nextColumn) {
|
|
nscoord width;
|
|
rv = nextColumn->GetWidthInTwips(this, &width);
|
|
NS_ASSERTION(NS_SUCCEEDED(rv), "nextColumn is invalid");
|
|
|
|
if (width != 0) {
|
|
break;
|
|
}
|
|
|
|
nextColumn = nextColumn->GetNext();
|
|
}
|
|
|
|
if (nextColumn) {
|
|
nsAutoString nextText;
|
|
view->GetCellText(aRowIndex, nextColumn, nextText);
|
|
// We don't measure or draw this text so no need to check it for
|
|
// bidi-ness
|
|
|
|
if (nextText.Length() == 0) {
|
|
nscoord width;
|
|
rv = nextColumn->GetWidthInTwips(this, &width);
|
|
NS_ASSERTION(NS_SUCCEEDED(rv), "nextColumn is invalid");
|
|
|
|
maxWidth += width;
|
|
widthIsGreater = nsLayoutUtils::StringWidthIsGreaterThan(
|
|
aText, aFontMetrics, drawTarget, maxWidth);
|
|
|
|
nextColumn = nextColumn->GetNext();
|
|
} else {
|
|
nextColumn = nullptr;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
CroppingStyle cropType = CroppingStyle::CropRight;
|
|
if (aColumn->GetCropStyle() == 1) {
|
|
cropType = CroppingStyle::CropCenter;
|
|
} else if (aColumn->GetCropStyle() == 2) {
|
|
cropType = CroppingStyle::CropLeft;
|
|
}
|
|
CropStringForWidth(aText, aRenderingContext, aFontMetrics, maxWidth,
|
|
cropType);
|
|
|
|
nscoord width = nsLayoutUtils::AppUnitWidthOfStringBidi(
|
|
aText, this, aFontMetrics, aRenderingContext);
|
|
|
|
switch (aColumn->GetTextAlignment()) {
|
|
case mozilla::StyleTextAlign::Right:
|
|
aTextRect.x += aTextRect.width - width;
|
|
break;
|
|
case mozilla::StyleTextAlign::Center:
|
|
aTextRect.x += (aTextRect.width - width) / 2;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
aTextRect.width = width;
|
|
}
|
|
|
|
nsCSSAnonBoxPseudoStaticAtom* nsTreeBodyFrame::GetItemWithinCellAt(
|
|
nscoord aX, const nsRect& aCellRect, int32_t aRowIndex,
|
|
nsTreeColumn* aColumn) {
|
|
MOZ_ASSERT(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
// Obtain the properties for our cell.
|
|
PrefillPropertyArray(aRowIndex, aColumn);
|
|
nsAutoString properties;
|
|
nsCOMPtr<nsITreeView> view = GetExistingView();
|
|
view->GetCellProperties(aRowIndex, aColumn, properties);
|
|
nsTreeUtils::TokenizeProperties(properties, mScratchArray);
|
|
|
|
// Resolve style for the cell.
|
|
ComputedStyle* cellContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeCell());
|
|
|
|
// Obtain the margins for the cell and then deflate our rect by that
|
|
// amount. The cell is assumed to be contained within the deflated rect.
|
|
nsRect cellRect(aCellRect);
|
|
nsMargin cellMargin;
|
|
cellContext->StyleMargin()->GetMargin(cellMargin);
|
|
cellRect.Deflate(cellMargin);
|
|
|
|
// Adjust the rect for its border and padding.
|
|
AdjustForBorderPadding(cellContext, cellRect);
|
|
|
|
if (aX < cellRect.x || aX >= cellRect.x + cellRect.width) {
|
|
// The user clicked within the cell's margins/borders/padding. This
|
|
// constitutes a click on the cell.
|
|
return nsCSSAnonBoxes::mozTreeCell();
|
|
}
|
|
|
|
nscoord currX = cellRect.x;
|
|
nscoord remainingWidth = cellRect.width;
|
|
|
|
// Handle right alignment hit testing.
|
|
bool isRTL = StyleVisibility()->mDirection == StyleDirection::Rtl;
|
|
|
|
nsPresContext* presContext = PresContext();
|
|
UniquePtr<gfxContext> rc =
|
|
presContext->PresShell()->CreateReferenceRenderingContext();
|
|
|
|
if (aColumn->IsPrimary()) {
|
|
// If we're the primary column, we have indentation and a twisty.
|
|
int32_t level;
|
|
view->GetLevel(aRowIndex, &level);
|
|
|
|
if (!isRTL) currX += mIndentation * level;
|
|
remainingWidth -= mIndentation * level;
|
|
|
|
if ((isRTL && aX > currX + remainingWidth) || (!isRTL && aX < currX)) {
|
|
// The user clicked within the indentation.
|
|
return nsCSSAnonBoxes::mozTreeCell();
|
|
}
|
|
|
|
// Always leave space for the twisty.
|
|
nsRect twistyRect(currX, cellRect.y, remainingWidth, cellRect.height);
|
|
bool hasTwisty = false;
|
|
bool isContainer = false;
|
|
view->IsContainer(aRowIndex, &isContainer);
|
|
if (isContainer) {
|
|
bool isContainerEmpty = false;
|
|
view->IsContainerEmpty(aRowIndex, &isContainerEmpty);
|
|
if (!isContainerEmpty) hasTwisty = true;
|
|
}
|
|
|
|
// Resolve style for the twisty.
|
|
ComputedStyle* twistyContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeTwisty());
|
|
|
|
nsRect imageSize;
|
|
GetTwistyRect(aRowIndex, aColumn, imageSize, twistyRect, presContext,
|
|
twistyContext);
|
|
|
|
// We will treat a click as hitting the twisty if it happens on the margins,
|
|
// borders, padding, or content of the twisty object. By allowing a "slop"
|
|
// into the margin, we make it a little bit easier for a user to hit the
|
|
// twisty. (We don't want to be too picky here.)
|
|
nsMargin twistyMargin;
|
|
twistyContext->StyleMargin()->GetMargin(twistyMargin);
|
|
twistyRect.Inflate(twistyMargin);
|
|
if (isRTL) twistyRect.x = currX + remainingWidth - twistyRect.width;
|
|
|
|
// Now we test to see if aX is actually within the twistyRect. If it is,
|
|
// and if the item should have a twisty, then we return "twisty". If it is
|
|
// within the rect but we shouldn't have a twisty, then we return "cell".
|
|
if (aX >= twistyRect.x && aX < twistyRect.x + twistyRect.width) {
|
|
if (hasTwisty)
|
|
return nsCSSAnonBoxes::mozTreeTwisty();
|
|
else
|
|
return nsCSSAnonBoxes::mozTreeCell();
|
|
}
|
|
|
|
if (!isRTL) currX += twistyRect.width;
|
|
remainingWidth -= twistyRect.width;
|
|
}
|
|
|
|
// Now test to see if the user hit the icon for the cell.
|
|
nsRect iconRect(currX, cellRect.y, remainingWidth, cellRect.height);
|
|
|
|
// Resolve style for the image.
|
|
ComputedStyle* imageContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeImage());
|
|
|
|
nsRect iconSize = GetImageSize(aRowIndex, aColumn, false, imageContext);
|
|
nsMargin imageMargin;
|
|
imageContext->StyleMargin()->GetMargin(imageMargin);
|
|
iconSize.Inflate(imageMargin);
|
|
iconRect.width = iconSize.width;
|
|
if (isRTL) iconRect.x = currX + remainingWidth - iconRect.width;
|
|
|
|
if (aX >= iconRect.x && aX < iconRect.x + iconRect.width) {
|
|
// The user clicked on the image.
|
|
return nsCSSAnonBoxes::mozTreeImage();
|
|
}
|
|
|
|
if (!isRTL) currX += iconRect.width;
|
|
remainingWidth -= iconRect.width;
|
|
|
|
nsAutoString cellText;
|
|
view->GetCellText(aRowIndex, aColumn, cellText);
|
|
// We're going to measure this text so we need to ensure bidi is enabled if
|
|
// necessary
|
|
CheckTextForBidi(cellText);
|
|
|
|
nsRect textRect(currX, cellRect.y, remainingWidth, cellRect.height);
|
|
|
|
ComputedStyle* textContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeCellText());
|
|
|
|
nsMargin textMargin;
|
|
textContext->StyleMargin()->GetMargin(textMargin);
|
|
textRect.Deflate(textMargin);
|
|
|
|
AdjustForBorderPadding(textContext, textRect);
|
|
|
|
RefPtr<nsFontMetrics> fm =
|
|
nsLayoutUtils::GetFontMetricsForComputedStyle(textContext, presContext);
|
|
AdjustForCellText(cellText, aRowIndex, aColumn, *rc, *fm, textRect);
|
|
|
|
if (aX >= textRect.x && aX < textRect.x + textRect.width)
|
|
return nsCSSAnonBoxes::mozTreeCellText();
|
|
else
|
|
return nsCSSAnonBoxes::mozTreeCell();
|
|
}
|
|
|
|
void nsTreeBodyFrame::GetCellAt(nscoord aX, nscoord aY, int32_t* aRow,
|
|
nsTreeColumn** aCol,
|
|
nsCSSAnonBoxPseudoStaticAtom** aChildElt) {
|
|
*aCol = nullptr;
|
|
*aChildElt = nullptr;
|
|
|
|
*aRow = GetRowAtInternal(aX, aY);
|
|
if (*aRow < 0) return;
|
|
|
|
// Determine the column hit.
|
|
for (nsTreeColumn* currCol = mColumns->GetFirstColumn(); currCol;
|
|
currCol = currCol->GetNext()) {
|
|
nsRect cellRect;
|
|
nsresult rv = currCol->GetRect(
|
|
this, mInnerBox.y + mRowHeight * (*aRow - mTopRowIndex), mRowHeight,
|
|
&cellRect);
|
|
if (NS_FAILED(rv)) {
|
|
MOZ_ASSERT_UNREACHABLE("column has no frame");
|
|
continue;
|
|
}
|
|
|
|
if (!OffsetForHorzScroll(cellRect, false)) continue;
|
|
|
|
if (aX >= cellRect.x && aX < cellRect.x + cellRect.width) {
|
|
// We know the column hit now.
|
|
*aCol = currCol;
|
|
|
|
if (currCol->IsCycler())
|
|
// Cyclers contain only images. Fill this in immediately and return.
|
|
*aChildElt = nsCSSAnonBoxes::mozTreeImage();
|
|
else
|
|
*aChildElt = GetItemWithinCellAt(aX, cellRect, *aRow, currCol);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::GetCellWidth(int32_t aRow, nsTreeColumn* aCol,
|
|
gfxContext* aRenderingContext,
|
|
nscoord& aDesiredSize,
|
|
nscoord& aCurrentSize) {
|
|
MOZ_ASSERT(aCol, "aCol must not be null");
|
|
MOZ_ASSERT(aRenderingContext, "aRenderingContext must not be null");
|
|
|
|
// The rect for the current cell.
|
|
nscoord colWidth;
|
|
nsresult rv = aCol->GetWidthInTwips(this, &colWidth);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsRect cellRect(0, 0, colWidth, mRowHeight);
|
|
|
|
int32_t overflow =
|
|
cellRect.x + cellRect.width - (mInnerBox.x + mInnerBox.width);
|
|
if (overflow > 0) cellRect.width -= overflow;
|
|
|
|
// Adjust borders and padding for the cell.
|
|
ComputedStyle* cellContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeCell());
|
|
nsMargin bp(0, 0, 0, 0);
|
|
GetBorderPadding(cellContext, bp);
|
|
|
|
aCurrentSize = cellRect.width;
|
|
aDesiredSize = bp.left + bp.right;
|
|
nsCOMPtr<nsITreeView> view = GetExistingView();
|
|
|
|
if (aCol->IsPrimary()) {
|
|
// If the current Column is a Primary, then we need to take into account
|
|
// the indentation and possibly a twisty.
|
|
|
|
// The amount of indentation is the indentation width (|mIndentation|) by
|
|
// the level.
|
|
int32_t level;
|
|
view->GetLevel(aRow, &level);
|
|
aDesiredSize += mIndentation * level;
|
|
|
|
// Find the twisty rect by computing its size.
|
|
ComputedStyle* twistyContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeTwisty());
|
|
|
|
nsRect imageSize;
|
|
nsRect twistyRect(cellRect);
|
|
GetTwistyRect(aRow, aCol, imageSize, twistyRect, PresContext(),
|
|
twistyContext);
|
|
|
|
// Add in the margins of the twisty element.
|
|
nsMargin twistyMargin;
|
|
twistyContext->StyleMargin()->GetMargin(twistyMargin);
|
|
twistyRect.Inflate(twistyMargin);
|
|
|
|
aDesiredSize += twistyRect.width;
|
|
}
|
|
|
|
ComputedStyle* imageContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeImage());
|
|
|
|
// Account for the width of the cell image.
|
|
nsRect imageSize = GetImageSize(aRow, aCol, false, imageContext);
|
|
// Add in the margins of the cell image.
|
|
nsMargin imageMargin;
|
|
imageContext->StyleMargin()->GetMargin(imageMargin);
|
|
imageSize.Inflate(imageMargin);
|
|
|
|
aDesiredSize += imageSize.width;
|
|
|
|
// Get the cell text.
|
|
nsAutoString cellText;
|
|
view->GetCellText(aRow, aCol, cellText);
|
|
// We're going to measure this text so we need to ensure bidi is enabled if
|
|
// necessary
|
|
CheckTextForBidi(cellText);
|
|
|
|
ComputedStyle* textContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeCellText());
|
|
|
|
// Get the borders and padding for the text.
|
|
GetBorderPadding(textContext, bp);
|
|
|
|
RefPtr<nsFontMetrics> fm =
|
|
nsLayoutUtils::GetFontMetricsForComputedStyle(textContext, PresContext());
|
|
// Get the width of the text itself
|
|
nscoord width = nsLayoutUtils::AppUnitWidthOfStringBidi(cellText, this, *fm,
|
|
*aRenderingContext);
|
|
nscoord totalTextWidth = width + bp.left + bp.right;
|
|
aDesiredSize += totalTextWidth;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::IsCellCropped(int32_t aRow, nsTreeColumn* aCol,
|
|
bool* _retval) {
|
|
nscoord currentSize, desiredSize;
|
|
nsresult rv;
|
|
|
|
if (!aCol) return NS_ERROR_INVALID_ARG;
|
|
|
|
UniquePtr<gfxContext> rc = PresShell()->CreateReferenceRenderingContext();
|
|
|
|
rv = GetCellWidth(aRow, aCol, rc.get(), desiredSize, currentSize);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
*_retval = desiredSize > currentSize;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::CreateTimer(const LookAndFeel::IntID aID,
|
|
nsTimerCallbackFunc aFunc, int32_t aType,
|
|
nsITimer** aTimer, const char* aName) {
|
|
// Get the delay from the look and feel service.
|
|
int32_t delay = LookAndFeel::GetInt(aID, 0);
|
|
|
|
nsCOMPtr<nsITimer> timer;
|
|
|
|
// Create a new timer only if the delay is greater than zero.
|
|
// Zero value means that this feature is completely disabled.
|
|
if (delay > 0) {
|
|
MOZ_TRY_VAR(timer,
|
|
NS_NewTimerWithFuncCallback(aFunc, this, delay, aType, aName,
|
|
GetMainThreadSerialEventTarget()));
|
|
}
|
|
|
|
timer.forget(aTimer);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::RowCountChanged(int32_t aIndex, int32_t aCount) {
|
|
if (aCount == 0 || !mView) {
|
|
return NS_OK; // Nothing to do.
|
|
}
|
|
|
|
#ifdef ACCESSIBILITY
|
|
if (GetAccService()) {
|
|
FireRowCountChangedEvent(aIndex, aCount);
|
|
}
|
|
#endif // #ifdef ACCESSIBILITY
|
|
|
|
AutoWeakFrame weakFrame(this);
|
|
|
|
// Adjust our selection.
|
|
if (nsCOMPtr<nsITreeSelection> sel = GetSelection()) {
|
|
sel->AdjustSelection(aIndex, aCount);
|
|
}
|
|
|
|
NS_ENSURE_STATE(weakFrame.IsAlive());
|
|
|
|
if (mUpdateBatchNest) return NS_OK;
|
|
|
|
mRowCount += aCount;
|
|
#ifdef DEBUG
|
|
int32_t rowCount = mRowCount;
|
|
mView->GetRowCount(&rowCount);
|
|
NS_ASSERTION(
|
|
rowCount == mRowCount,
|
|
"row count did not change by the amount suggested, check caller");
|
|
#endif
|
|
|
|
int32_t count = Abs(aCount);
|
|
int32_t last = LastVisibleRow();
|
|
if (aIndex >= mTopRowIndex && aIndex <= last) InvalidateRange(aIndex, last);
|
|
|
|
ScrollParts parts = GetScrollParts();
|
|
|
|
if (mTopRowIndex == 0) {
|
|
// Just update the scrollbar and return.
|
|
FullScrollbarsUpdate(false);
|
|
return NS_OK;
|
|
}
|
|
|
|
bool needsInvalidation = false;
|
|
// Adjust our top row index.
|
|
if (aCount > 0) {
|
|
if (mTopRowIndex > aIndex) {
|
|
// Rows came in above us. Augment the top row index.
|
|
mTopRowIndex += aCount;
|
|
}
|
|
} else if (aCount < 0) {
|
|
if (mTopRowIndex > aIndex + count - 1) {
|
|
// No need to invalidate. The remove happened
|
|
// completely above us (offscreen).
|
|
mTopRowIndex -= count;
|
|
} else if (mTopRowIndex >= aIndex) {
|
|
// This is a full-blown invalidate.
|
|
if (mTopRowIndex + mPageLength > mRowCount - 1) {
|
|
mTopRowIndex = std::max(0, mRowCount - 1 - mPageLength);
|
|
}
|
|
needsInvalidation = true;
|
|
}
|
|
}
|
|
|
|
FullScrollbarsUpdate(needsInvalidation);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::BeginUpdateBatch() {
|
|
++mUpdateBatchNest;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::EndUpdateBatch() {
|
|
NS_ASSERTION(mUpdateBatchNest > 0, "badly nested update batch");
|
|
|
|
if (--mUpdateBatchNest != 0) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsITreeView> view = GetExistingView();
|
|
if (!view) {
|
|
return NS_OK;
|
|
}
|
|
|
|
Invalidate();
|
|
int32_t countBeforeUpdate = mRowCount;
|
|
view->GetRowCount(&mRowCount);
|
|
if (countBeforeUpdate != mRowCount) {
|
|
if (mTopRowIndex + mPageLength > mRowCount - 1) {
|
|
mTopRowIndex = std::max(0, mRowCount - 1 - mPageLength);
|
|
}
|
|
FullScrollbarsUpdate(false);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsTreeBodyFrame::PrefillPropertyArray(int32_t aRowIndex,
|
|
nsTreeColumn* aCol) {
|
|
MOZ_ASSERT(!aCol || aCol->GetFrame(), "invalid column passed");
|
|
mScratchArray.Clear();
|
|
|
|
// focus
|
|
if (mFocused) {
|
|
mScratchArray.AppendElement(nsGkAtoms::focus);
|
|
} else {
|
|
mScratchArray.AppendElement(nsGkAtoms::blur);
|
|
}
|
|
|
|
// sort
|
|
bool sorted = false;
|
|
mView->IsSorted(&sorted);
|
|
if (sorted) {
|
|
mScratchArray.AppendElement(nsGkAtoms::sorted);
|
|
}
|
|
|
|
// drag session
|
|
if (mSlots && mSlots->mIsDragging) {
|
|
mScratchArray.AppendElement(nsGkAtoms::dragSession);
|
|
}
|
|
|
|
if (aRowIndex != -1) {
|
|
if (aRowIndex == mMouseOverRow) {
|
|
mScratchArray.AppendElement(nsGkAtoms::hover);
|
|
}
|
|
|
|
nsCOMPtr<nsITreeSelection> selection = GetSelection();
|
|
if (selection) {
|
|
// selected
|
|
bool isSelected;
|
|
selection->IsSelected(aRowIndex, &isSelected);
|
|
if (isSelected) {
|
|
mScratchArray.AppendElement(nsGkAtoms::selected);
|
|
}
|
|
|
|
// current
|
|
int32_t currentIndex;
|
|
selection->GetCurrentIndex(¤tIndex);
|
|
if (aRowIndex == currentIndex) {
|
|
mScratchArray.AppendElement(nsGkAtoms::current);
|
|
}
|
|
}
|
|
|
|
// container or leaf
|
|
bool isContainer = false;
|
|
mView->IsContainer(aRowIndex, &isContainer);
|
|
if (isContainer) {
|
|
mScratchArray.AppendElement(nsGkAtoms::container);
|
|
|
|
// open or closed
|
|
bool isOpen = false;
|
|
mView->IsContainerOpen(aRowIndex, &isOpen);
|
|
if (isOpen) {
|
|
mScratchArray.AppendElement(nsGkAtoms::open);
|
|
} else {
|
|
mScratchArray.AppendElement(nsGkAtoms::closed);
|
|
}
|
|
} else {
|
|
mScratchArray.AppendElement(nsGkAtoms::leaf);
|
|
}
|
|
|
|
// drop orientation
|
|
if (mSlots && mSlots->mDropAllowed && mSlots->mDropRow == aRowIndex) {
|
|
if (mSlots->mDropOrient == nsITreeView::DROP_BEFORE) {
|
|
mScratchArray.AppendElement(nsGkAtoms::dropBefore);
|
|
} else if (mSlots->mDropOrient == nsITreeView::DROP_ON) {
|
|
mScratchArray.AppendElement(nsGkAtoms::dropOn);
|
|
} else if (mSlots->mDropOrient == nsITreeView::DROP_AFTER) {
|
|
mScratchArray.AppendElement(nsGkAtoms::dropAfter);
|
|
}
|
|
}
|
|
|
|
// odd or even
|
|
if (aRowIndex % 2) {
|
|
mScratchArray.AppendElement(nsGkAtoms::odd);
|
|
} else {
|
|
mScratchArray.AppendElement(nsGkAtoms::even);
|
|
}
|
|
|
|
XULTreeElement* tree = GetBaseElement();
|
|
if (tree && tree->HasAttr(nsGkAtoms::editing)) {
|
|
mScratchArray.AppendElement(nsGkAtoms::editing);
|
|
}
|
|
|
|
// multiple columns
|
|
if (mColumns->GetColumnAt(1)) {
|
|
mScratchArray.AppendElement(nsGkAtoms::multicol);
|
|
}
|
|
}
|
|
|
|
if (aCol) {
|
|
mScratchArray.AppendElement(aCol->GetAtom());
|
|
|
|
if (aCol->IsPrimary()) {
|
|
mScratchArray.AppendElement(nsGkAtoms::primary);
|
|
}
|
|
|
|
if (aCol->GetType() == TreeColumn_Binding::TYPE_CHECKBOX) {
|
|
mScratchArray.AppendElement(nsGkAtoms::checkbox);
|
|
|
|
if (aRowIndex != -1) {
|
|
nsAutoString value;
|
|
mView->GetCellValue(aRowIndex, aCol, value);
|
|
if (value.EqualsLiteral("true")) {
|
|
mScratchArray.AppendElement(nsGkAtoms::checked);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (aCol->mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::ordinal,
|
|
u"1"_ns, eIgnoreCase)) {
|
|
mScratchArray.AppendElement(nsGkAtoms::firstColumn);
|
|
}
|
|
|
|
// Read special properties from attributes on the column content node
|
|
if (aCol->mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::insertbefore,
|
|
nsGkAtoms::_true, eCaseMatters)) {
|
|
mScratchArray.AppendElement(nsGkAtoms::insertbefore);
|
|
}
|
|
if (aCol->mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::insertafter,
|
|
nsGkAtoms::_true, eCaseMatters)) {
|
|
mScratchArray.AppendElement(nsGkAtoms::insertafter);
|
|
}
|
|
}
|
|
}
|
|
|
|
void nsTreeBodyFrame::GetTwistyRect(int32_t aRowIndex, nsTreeColumn* aColumn,
|
|
nsRect& aImageRect, nsRect& aTwistyRect,
|
|
nsPresContext* aPresContext,
|
|
ComputedStyle* aTwistyContext) {
|
|
// The twisty rect extends all the way to the end of the cell. This is
|
|
// incorrect. We need to determine the twisty rect's true width. This is
|
|
// done by examining the ComputedStyle for a width first. If it has one, we
|
|
// use that. If it doesn't, we use the image's natural width. If the image
|
|
// hasn't loaded and if no width is specified, then we just bail. If there is
|
|
// a -moz-appearance involved, adjust the rect by the minimum widget size
|
|
// provided by the theme implementation.
|
|
aImageRect = GetImageSize(aRowIndex, aColumn, true, aTwistyContext);
|
|
if (aImageRect.height > aTwistyRect.height) {
|
|
aImageRect.height = aTwistyRect.height;
|
|
}
|
|
if (aImageRect.width > aTwistyRect.width) {
|
|
aImageRect.width = aTwistyRect.width;
|
|
} else {
|
|
aTwistyRect.width = aImageRect.width;
|
|
}
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::GetImage(int32_t aRowIndex, nsTreeColumn* aCol,
|
|
bool aUseContext,
|
|
ComputedStyle* aComputedStyle,
|
|
imgIContainer** aResult) {
|
|
*aResult = nullptr;
|
|
|
|
nsAutoString imageSrc;
|
|
mView->GetImageSrc(aRowIndex, aCol, imageSrc);
|
|
RefPtr<imgRequestProxy> styleRequest;
|
|
if (aUseContext || imageSrc.IsEmpty()) {
|
|
// Obtain the URL from the ComputedStyle.
|
|
styleRequest =
|
|
aComputedStyle->StyleList()->mListStyleImage.GetImageRequest();
|
|
if (!styleRequest) return NS_OK;
|
|
nsCOMPtr<nsIURI> uri;
|
|
styleRequest->GetURI(getter_AddRefs(uri));
|
|
nsAutoCString spec;
|
|
nsresult rv = uri->GetSpec(spec);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
CopyUTF8toUTF16(spec, imageSrc);
|
|
}
|
|
|
|
// Look the image up in our cache.
|
|
nsTreeImageCacheEntry entry;
|
|
if (mImageCache.Get(imageSrc, &entry)) {
|
|
// Find out if the image has loaded.
|
|
uint32_t status;
|
|
imgIRequest* imgReq = entry.request;
|
|
imgReq->GetImageStatus(&status);
|
|
imgReq->GetImage(aResult); // We hand back the image here. The GetImage
|
|
// call addrefs *aResult.
|
|
bool animated = true; // Assuming animated is the safe option
|
|
|
|
// We can only call GetAnimated if we're decoded
|
|
if (*aResult && (status & imgIRequest::STATUS_DECODE_COMPLETE))
|
|
(*aResult)->GetAnimated(&animated);
|
|
|
|
if ((!(status & imgIRequest::STATUS_LOAD_COMPLETE)) || animated) {
|
|
// We either aren't done loading, or we're animating. Add our row as a
|
|
// listener for invalidations.
|
|
nsCOMPtr<imgINotificationObserver> obs;
|
|
imgReq->GetNotificationObserver(getter_AddRefs(obs));
|
|
|
|
if (obs) {
|
|
static_cast<nsTreeImageListener*>(obs.get())->AddCell(aRowIndex, aCol);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
if (!*aResult) {
|
|
// Create a new nsTreeImageListener object and pass it our row and column
|
|
// information.
|
|
nsTreeImageListener* listener = new nsTreeImageListener(this);
|
|
if (!listener) return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
mCreatedListeners.Insert(listener);
|
|
|
|
listener->AddCell(aRowIndex, aCol);
|
|
nsCOMPtr<imgINotificationObserver> imgNotificationObserver = listener;
|
|
|
|
Document* doc = mContent->GetComposedDoc();
|
|
if (!doc)
|
|
// The page is currently being torn down. Why bother.
|
|
return NS_ERROR_FAILURE;
|
|
|
|
RefPtr<imgRequestProxy> imageRequest;
|
|
if (styleRequest) {
|
|
styleRequest->SyncClone(imgNotificationObserver, doc,
|
|
getter_AddRefs(imageRequest));
|
|
} else {
|
|
nsCOMPtr<nsIURI> srcURI;
|
|
nsContentUtils::NewURIWithDocumentCharset(
|
|
getter_AddRefs(srcURI), imageSrc, doc, mContent->GetBaseURI());
|
|
if (!srcURI) return NS_ERROR_FAILURE;
|
|
|
|
auto referrerInfo = MakeRefPtr<mozilla::dom::ReferrerInfo>(*doc);
|
|
|
|
// XXXbz what's the origin principal for this stuff that comes from our
|
|
// view? I guess we should assume that it's the node's principal...
|
|
nsresult rv = nsContentUtils::LoadImage(
|
|
srcURI, mContent, doc, mContent->NodePrincipal(), 0, referrerInfo,
|
|
imgNotificationObserver, nsIRequest::LOAD_NORMAL, u""_ns,
|
|
getter_AddRefs(imageRequest));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// NOTE(heycam): If it's an SVG image, and we need to want the image to
|
|
// able to respond to media query changes, it needs to be added to the
|
|
// document's ImageTracker. For now, assume we don't need this.
|
|
}
|
|
listener->UnsuppressInvalidation();
|
|
|
|
if (!imageRequest) return NS_ERROR_FAILURE;
|
|
|
|
// We don't want discarding/decode-on-draw for xul images
|
|
imageRequest->StartDecoding(imgIContainer::FLAG_ASYNC_NOTIFY);
|
|
imageRequest->LockImage();
|
|
|
|
// In a case it was already cached.
|
|
imageRequest->GetImage(aResult);
|
|
nsTreeImageCacheEntry cacheEntry(imageRequest, imgNotificationObserver);
|
|
mImageCache.InsertOrUpdate(imageSrc, cacheEntry);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsRect nsTreeBodyFrame::GetImageSize(int32_t aRowIndex, nsTreeColumn* aCol,
|
|
bool aUseContext,
|
|
ComputedStyle* aComputedStyle) {
|
|
// XXX We should respond to visibility rules for collapsed vs. hidden.
|
|
|
|
// This method returns the width of the twisty INCLUDING borders and padding.
|
|
// It first checks the ComputedStyle for a width. If none is found, it tries
|
|
// to use the default image width for the twisty. If no image is found, it
|
|
// defaults to border+padding.
|
|
nsRect r(0, 0, 0, 0);
|
|
nsMargin bp(0, 0, 0, 0);
|
|
GetBorderPadding(aComputedStyle, bp);
|
|
r.Inflate(bp);
|
|
|
|
// Now r contains our border+padding info. We now need to get our width and
|
|
// height.
|
|
bool needWidth = false;
|
|
bool needHeight = false;
|
|
|
|
// We have to load image even though we already have a size.
|
|
// Don't change this, otherwise things start to go awry.
|
|
nsCOMPtr<imgIContainer> image;
|
|
GetImage(aRowIndex, aCol, aUseContext, aComputedStyle, getter_AddRefs(image));
|
|
|
|
const nsStylePosition* myPosition = aComputedStyle->StylePosition();
|
|
if (myPosition->mWidth.ConvertsToLength()) {
|
|
int32_t val = myPosition->mWidth.ToLength();
|
|
r.width += val;
|
|
} else {
|
|
needWidth = true;
|
|
}
|
|
|
|
if (myPosition->mHeight.ConvertsToLength()) {
|
|
int32_t val = myPosition->mHeight.ToLength();
|
|
r.height += val;
|
|
} else {
|
|
needHeight = true;
|
|
}
|
|
|
|
if (image) {
|
|
if (needWidth || needHeight) {
|
|
// Get the natural image size.
|
|
|
|
if (needWidth) {
|
|
// Get the size from the image.
|
|
nscoord width;
|
|
image->GetWidth(&width);
|
|
r.width += nsPresContext::CSSPixelsToAppUnits(width);
|
|
}
|
|
|
|
if (needHeight) {
|
|
nscoord height;
|
|
image->GetHeight(&height);
|
|
r.height += nsPresContext::CSSPixelsToAppUnits(height);
|
|
}
|
|
}
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
// GetImageDestSize returns the destination size of the image.
|
|
// The width and height do not include borders and padding.
|
|
// The width and height have not been adjusted to fit in the row height
|
|
// or cell width.
|
|
// The width and height reflect the destination size specified in CSS,
|
|
// or the image region specified in CSS, or the natural size of the
|
|
// image.
|
|
// If only the destination width has been specified in CSS, the height is
|
|
// calculated to maintain the aspect ratio of the image.
|
|
// If only the destination height has been specified in CSS, the width is
|
|
// calculated to maintain the aspect ratio of the image.
|
|
nsSize nsTreeBodyFrame::GetImageDestSize(ComputedStyle* aComputedStyle,
|
|
imgIContainer* image) {
|
|
nsSize size(0, 0);
|
|
|
|
// We need to get the width and height.
|
|
bool needWidth = false;
|
|
bool needHeight = false;
|
|
|
|
// Get the style position to see if the CSS has specified the
|
|
// destination width/height.
|
|
const nsStylePosition* myPosition = aComputedStyle->StylePosition();
|
|
|
|
if (myPosition->mWidth.ConvertsToLength()) {
|
|
// CSS has specified the destination width.
|
|
size.width = myPosition->mWidth.ToLength();
|
|
} else {
|
|
// We'll need to get the width of the image/region.
|
|
needWidth = true;
|
|
}
|
|
|
|
if (myPosition->mHeight.ConvertsToLength()) {
|
|
// CSS has specified the destination height.
|
|
size.height = myPosition->mHeight.ToLength();
|
|
} else {
|
|
// We'll need to get the height of the image/region.
|
|
needHeight = true;
|
|
}
|
|
|
|
if (needWidth || needHeight) {
|
|
// We need to get the size of the image/region.
|
|
nsSize imageSize(0, 0);
|
|
if (image) {
|
|
nscoord width;
|
|
image->GetWidth(&width);
|
|
imageSize.width = nsPresContext::CSSPixelsToAppUnits(width);
|
|
nscoord height;
|
|
image->GetHeight(&height);
|
|
imageSize.height = nsPresContext::CSSPixelsToAppUnits(height);
|
|
}
|
|
|
|
if (needWidth) {
|
|
if (!needHeight && imageSize.height != 0) {
|
|
// The CSS specified the destination height, but not the destination
|
|
// width. We need to calculate the width so that we maintain the
|
|
// image's aspect ratio.
|
|
size.width = imageSize.width * size.height / imageSize.height;
|
|
} else {
|
|
size.width = imageSize.width;
|
|
}
|
|
}
|
|
|
|
if (needHeight) {
|
|
if (!needWidth && imageSize.width != 0) {
|
|
// The CSS specified the destination width, but not the destination
|
|
// height. We need to calculate the height so that we maintain the
|
|
// image's aspect ratio.
|
|
size.height = imageSize.height * size.width / imageSize.width;
|
|
} else {
|
|
size.height = imageSize.height;
|
|
}
|
|
}
|
|
}
|
|
|
|
return size;
|
|
}
|
|
|
|
// GetImageSourceRect returns the source rectangle of the image to be
|
|
// displayed.
|
|
// The width and height reflect the image region specified in CSS, or
|
|
// the natural size of the image.
|
|
// The width and height do not include borders and padding.
|
|
// The width and height do not reflect the destination size specified
|
|
// in CSS.
|
|
nsRect nsTreeBodyFrame::GetImageSourceRect(ComputedStyle* aComputedStyle,
|
|
imgIContainer* image) {
|
|
if (!image) {
|
|
return nsRect();
|
|
}
|
|
|
|
nsRect r;
|
|
// Use the actual image size.
|
|
nscoord coord;
|
|
if (NS_SUCCEEDED(image->GetWidth(&coord))) {
|
|
r.width = nsPresContext::CSSPixelsToAppUnits(coord);
|
|
}
|
|
if (NS_SUCCEEDED(image->GetHeight(&coord))) {
|
|
r.height = nsPresContext::CSSPixelsToAppUnits(coord);
|
|
}
|
|
return r;
|
|
}
|
|
|
|
int32_t nsTreeBodyFrame::GetRowHeight() {
|
|
// Look up the correct height. It is equal to the specified height
|
|
// + the specified margins.
|
|
mScratchArray.Clear();
|
|
ComputedStyle* rowContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeRow());
|
|
if (rowContext) {
|
|
const nsStylePosition* myPosition = rowContext->StylePosition();
|
|
|
|
nscoord minHeight = 0;
|
|
if (myPosition->mMinHeight.ConvertsToLength()) {
|
|
minHeight = myPosition->mMinHeight.ToLength();
|
|
}
|
|
|
|
nscoord height = 0;
|
|
if (myPosition->mHeight.ConvertsToLength()) {
|
|
height = myPosition->mHeight.ToLength();
|
|
}
|
|
|
|
if (height < minHeight) height = minHeight;
|
|
|
|
if (height > 0) {
|
|
height = nsPresContext::AppUnitsToIntCSSPixels(height);
|
|
height += height % 2;
|
|
height = nsPresContext::CSSPixelsToAppUnits(height);
|
|
|
|
// XXX Check box-sizing to determine if border/padding should augment the
|
|
// height Inflate the height by our margins.
|
|
nsRect rowRect(0, 0, 0, height);
|
|
nsMargin rowMargin;
|
|
rowContext->StyleMargin()->GetMargin(rowMargin);
|
|
rowRect.Inflate(rowMargin);
|
|
height = rowRect.height;
|
|
return height;
|
|
}
|
|
}
|
|
|
|
return nsPresContext::CSSPixelsToAppUnits(18); // As good a default as any.
|
|
}
|
|
|
|
int32_t nsTreeBodyFrame::GetIndentation() {
|
|
// Look up the correct indentation. It is equal to the specified indentation
|
|
// width.
|
|
mScratchArray.Clear();
|
|
ComputedStyle* indentContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeIndentation());
|
|
if (indentContext) {
|
|
const nsStylePosition* myPosition = indentContext->StylePosition();
|
|
if (myPosition->mWidth.ConvertsToLength()) {
|
|
return myPosition->mWidth.ToLength();
|
|
}
|
|
}
|
|
|
|
return nsPresContext::CSSPixelsToAppUnits(16); // As good a default as any.
|
|
}
|
|
|
|
void nsTreeBodyFrame::CalcInnerBox() {
|
|
mInnerBox.SetRect(0, 0, mRect.width, mRect.height);
|
|
AdjustForBorderPadding(mComputedStyle, mInnerBox);
|
|
}
|
|
|
|
nscoord nsTreeBodyFrame::CalcHorzWidth(const ScrollParts& aParts) {
|
|
// Compute the adjustment to the last column. This varies depending on the
|
|
// visibility of the columnpicker and the scrollbar.
|
|
if (aParts.mColumnsFrame)
|
|
mAdjustWidth = mRect.width - aParts.mColumnsFrame->GetRect().width;
|
|
else
|
|
mAdjustWidth = 0;
|
|
|
|
nscoord width = 0;
|
|
|
|
// We calculate this from the scrollable frame, so that it
|
|
// properly covers all contingencies of what could be
|
|
// scrollable (columns, body, etc...)
|
|
|
|
if (aParts.mColumnsScrollFrame) {
|
|
width = aParts.mColumnsScrollFrame->GetScrollRange().width +
|
|
aParts.mColumnsScrollFrame->GetScrollPortRect().width;
|
|
}
|
|
|
|
// If no horz scrolling periphery is present, then just return our width
|
|
if (width == 0) width = mRect.width;
|
|
|
|
return width;
|
|
}
|
|
|
|
nsIFrame::Cursor nsTreeBodyFrame::GetCursor(const nsPoint& aPoint) {
|
|
// Check the GetScriptHandlingObject so we don't end up running code when
|
|
// the document is a zombie.
|
|
bool dummy;
|
|
if (mView && GetContent()->GetComposedDoc()->GetScriptHandlingObject(dummy)) {
|
|
int32_t row;
|
|
nsTreeColumn* col;
|
|
nsCSSAnonBoxPseudoStaticAtom* child;
|
|
GetCellAt(aPoint.x, aPoint.y, &row, &col, &child);
|
|
|
|
if (child) {
|
|
// Our scratch array is already prefilled.
|
|
RefPtr<ComputedStyle> childContext = GetPseudoComputedStyle(child);
|
|
StyleCursorKind kind = childContext->StyleUI()->Cursor().keyword;
|
|
if (kind == StyleCursorKind::Auto) {
|
|
kind = StyleCursorKind::Default;
|
|
}
|
|
return Cursor{kind, AllowCustomCursorImage::Yes, std::move(childContext)};
|
|
}
|
|
}
|
|
return SimpleXULLeafFrame::GetCursor(aPoint);
|
|
}
|
|
|
|
static uint32_t GetDropEffect(WidgetGUIEvent* aEvent) {
|
|
NS_ASSERTION(aEvent->mClass == eDragEventClass, "wrong event type");
|
|
WidgetDragEvent* dragEvent = aEvent->AsDragEvent();
|
|
nsContentUtils::SetDataTransferInEvent(dragEvent);
|
|
|
|
uint32_t action = 0;
|
|
if (dragEvent->mDataTransfer) {
|
|
action = dragEvent->mDataTransfer->DropEffectInt();
|
|
}
|
|
return action;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::HandleEvent(nsPresContext* aPresContext,
|
|
WidgetGUIEvent* aEvent,
|
|
nsEventStatus* aEventStatus) {
|
|
if (aEvent->mMessage == eMouseOver || aEvent->mMessage == eMouseMove) {
|
|
nsPoint pt =
|
|
nsLayoutUtils::GetEventCoordinatesRelativeTo(aEvent, RelativeTo{this});
|
|
int32_t xTwips = pt.x - mInnerBox.x;
|
|
int32_t yTwips = pt.y - mInnerBox.y;
|
|
int32_t newrow = GetRowAtInternal(xTwips, yTwips);
|
|
if (mMouseOverRow != newrow) {
|
|
// redraw the old and the new row
|
|
if (mMouseOverRow != -1) InvalidateRow(mMouseOverRow);
|
|
mMouseOverRow = newrow;
|
|
if (mMouseOverRow != -1) InvalidateRow(mMouseOverRow);
|
|
}
|
|
} else if (aEvent->mMessage == eMouseOut) {
|
|
if (mMouseOverRow != -1) {
|
|
InvalidateRow(mMouseOverRow);
|
|
mMouseOverRow = -1;
|
|
}
|
|
} else if (aEvent->mMessage == eDragEnter) {
|
|
if (!mSlots) {
|
|
mSlots = MakeUnique<Slots>();
|
|
}
|
|
|
|
// Cache several things we'll need throughout the course of our work. These
|
|
// will all get released on a drag exit.
|
|
|
|
if (mSlots->mTimer) {
|
|
mSlots->mTimer->Cancel();
|
|
mSlots->mTimer = nullptr;
|
|
}
|
|
|
|
// Cache the drag session.
|
|
mSlots->mIsDragging = true;
|
|
mSlots->mDropRow = -1;
|
|
mSlots->mDropOrient = -1;
|
|
mSlots->mDragAction = GetDropEffect(aEvent);
|
|
} else if (aEvent->mMessage == eDragOver) {
|
|
// The mouse is hovering over this tree. If we determine things are
|
|
// different from the last time, invalidate the drop feedback at the old
|
|
// position, query the view to see if the current location is droppable,
|
|
// and then invalidate the drop feedback at the new location if it is.
|
|
// The mouse may or may not have changed position from the last time
|
|
// we were called, so optimize out a lot of the extra notifications by
|
|
// checking if anything changed first. For drop feedback we use drop,
|
|
// dropBefore and dropAfter property.
|
|
if (!mView || !mSlots) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// Save last values, we will need them.
|
|
int32_t lastDropRow = mSlots->mDropRow;
|
|
int16_t lastDropOrient = mSlots->mDropOrient;
|
|
#ifndef XP_MACOSX
|
|
int16_t lastScrollLines = mSlots->mScrollLines;
|
|
#endif
|
|
|
|
// Find out the current drag action
|
|
uint32_t lastDragAction = mSlots->mDragAction;
|
|
mSlots->mDragAction = GetDropEffect(aEvent);
|
|
|
|
// Compute the row mouse is over and the above/below/on state.
|
|
// Below we'll use this to see if anything changed.
|
|
// Also check if we want to auto-scroll.
|
|
ComputeDropPosition(aEvent, &mSlots->mDropRow, &mSlots->mDropOrient,
|
|
&mSlots->mScrollLines);
|
|
|
|
// While we're here, handle tracking of scrolling during a drag.
|
|
if (mSlots->mScrollLines) {
|
|
if (mSlots->mDropAllowed) {
|
|
// Invalidate primary cell at old location.
|
|
mSlots->mDropAllowed = false;
|
|
InvalidateDropFeedback(lastDropRow, lastDropOrient);
|
|
}
|
|
#ifdef XP_MACOSX
|
|
ScrollByLines(mSlots->mScrollLines);
|
|
#else
|
|
if (!lastScrollLines) {
|
|
// Cancel any previously initialized timer.
|
|
if (mSlots->mTimer) {
|
|
mSlots->mTimer->Cancel();
|
|
mSlots->mTimer = nullptr;
|
|
}
|
|
|
|
// Set a timer to trigger the tree scrolling.
|
|
CreateTimer(LookAndFeel::IntID::TreeLazyScrollDelay, LazyScrollCallback,
|
|
nsITimer::TYPE_ONE_SHOT, getter_AddRefs(mSlots->mTimer),
|
|
"nsTreeBodyFrame::LazyScrollCallback");
|
|
}
|
|
#endif
|
|
// Bail out to prevent spring loaded timer and feedback line settings.
|
|
return NS_OK;
|
|
}
|
|
|
|
// If changed from last time, invalidate primary cell at the old location
|
|
// and if allowed, invalidate primary cell at the new location. If nothing
|
|
// changed, just bail.
|
|
if (mSlots->mDropRow != lastDropRow ||
|
|
mSlots->mDropOrient != lastDropOrient ||
|
|
mSlots->mDragAction != lastDragAction) {
|
|
// Invalidate row at the old location.
|
|
if (mSlots->mDropAllowed) {
|
|
mSlots->mDropAllowed = false;
|
|
InvalidateDropFeedback(lastDropRow, lastDropOrient);
|
|
}
|
|
|
|
if (mSlots->mTimer) {
|
|
// Timer is active but for a different row than the current one, kill
|
|
// it.
|
|
mSlots->mTimer->Cancel();
|
|
mSlots->mTimer = nullptr;
|
|
}
|
|
|
|
if (mSlots->mDropRow >= 0) {
|
|
if (!mSlots->mTimer && mSlots->mDropOrient == nsITreeView::DROP_ON) {
|
|
// Either there wasn't a timer running or it was just killed above.
|
|
// If over a folder, start up a timer to open the folder.
|
|
bool isContainer = false;
|
|
mView->IsContainer(mSlots->mDropRow, &isContainer);
|
|
if (isContainer) {
|
|
bool isOpen = false;
|
|
mView->IsContainerOpen(mSlots->mDropRow, &isOpen);
|
|
if (!isOpen) {
|
|
// This node isn't expanded, set a timer to expand it.
|
|
CreateTimer(LookAndFeel::IntID::TreeOpenDelay, OpenCallback,
|
|
nsITimer::TYPE_ONE_SHOT,
|
|
getter_AddRefs(mSlots->mTimer),
|
|
"nsTreeBodyFrame::OpenCallback");
|
|
}
|
|
}
|
|
}
|
|
|
|
// The dataTransfer was initialized by the call to GetDropEffect above.
|
|
bool canDropAtNewLocation = false;
|
|
mView->CanDrop(mSlots->mDropRow, mSlots->mDropOrient,
|
|
aEvent->AsDragEvent()->mDataTransfer,
|
|
&canDropAtNewLocation);
|
|
|
|
if (canDropAtNewLocation) {
|
|
// Invalidate row at the new location.
|
|
mSlots->mDropAllowed = canDropAtNewLocation;
|
|
InvalidateDropFeedback(mSlots->mDropRow, mSlots->mDropOrient);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Indicate that the drop is allowed by preventing the default behaviour.
|
|
if (mSlots->mDropAllowed) *aEventStatus = nsEventStatus_eConsumeNoDefault;
|
|
} else if (aEvent->mMessage == eDrop) {
|
|
// this event was meant for another frame, so ignore it
|
|
if (!mSlots) return NS_OK;
|
|
|
|
// Tell the view where the drop happened.
|
|
|
|
// Remove the drop folder and all its parents from the array.
|
|
int32_t parentIndex;
|
|
nsresult rv = mView->GetParentIndex(mSlots->mDropRow, &parentIndex);
|
|
while (NS_SUCCEEDED(rv) && parentIndex >= 0) {
|
|
mSlots->mArray.RemoveElement(parentIndex);
|
|
rv = mView->GetParentIndex(parentIndex, &parentIndex);
|
|
}
|
|
|
|
NS_ASSERTION(aEvent->mClass == eDragEventClass, "wrong event type");
|
|
WidgetDragEvent* dragEvent = aEvent->AsDragEvent();
|
|
nsContentUtils::SetDataTransferInEvent(dragEvent);
|
|
|
|
mView->Drop(mSlots->mDropRow, mSlots->mDropOrient,
|
|
dragEvent->mDataTransfer);
|
|
mSlots->mDropRow = -1;
|
|
mSlots->mDropOrient = -1;
|
|
mSlots->mIsDragging = false;
|
|
*aEventStatus =
|
|
nsEventStatus_eConsumeNoDefault; // already handled the drop
|
|
} else if (aEvent->mMessage == eDragExit) {
|
|
// this event was meant for another frame, so ignore it
|
|
if (!mSlots) return NS_OK;
|
|
|
|
// Clear out all our tracking vars.
|
|
|
|
if (mSlots->mDropAllowed) {
|
|
mSlots->mDropAllowed = false;
|
|
InvalidateDropFeedback(mSlots->mDropRow, mSlots->mDropOrient);
|
|
} else
|
|
mSlots->mDropAllowed = false;
|
|
mSlots->mIsDragging = false;
|
|
mSlots->mScrollLines = 0;
|
|
// If a drop is occuring, the exit event will fire just before the drop
|
|
// event, so don't reset mDropRow or mDropOrient as these fields are used
|
|
// by the drop event.
|
|
if (mSlots->mTimer) {
|
|
mSlots->mTimer->Cancel();
|
|
mSlots->mTimer = nullptr;
|
|
}
|
|
|
|
if (!mSlots->mArray.IsEmpty()) {
|
|
// Close all spring loaded folders except the drop folder.
|
|
CreateTimer(LookAndFeel::IntID::TreeCloseDelay, CloseCallback,
|
|
nsITimer::TYPE_ONE_SHOT, getter_AddRefs(mSlots->mTimer),
|
|
"nsTreeBodyFrame::CloseCallback");
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
namespace mozilla {
|
|
|
|
class nsDisplayTreeBody final : public nsPaintedDisplayItem {
|
|
public:
|
|
nsDisplayTreeBody(nsDisplayListBuilder* aBuilder, nsIFrame* aFrame)
|
|
: nsPaintedDisplayItem(aBuilder, aFrame) {
|
|
MOZ_COUNT_CTOR(nsDisplayTreeBody);
|
|
}
|
|
MOZ_COUNTED_DTOR_OVERRIDE(nsDisplayTreeBody)
|
|
|
|
nsDisplayItemGeometry* AllocateGeometry(
|
|
nsDisplayListBuilder* aBuilder) override {
|
|
return new nsDisplayTreeBodyGeometry(this, aBuilder, IsWindowActive());
|
|
}
|
|
|
|
void Destroy(nsDisplayListBuilder* aBuilder) override {
|
|
aBuilder->UnregisterThemeGeometry(this);
|
|
nsPaintedDisplayItem::Destroy(aBuilder);
|
|
}
|
|
|
|
bool IsWindowActive() const {
|
|
return !mFrame->PresContext()->Document()->IsTopLevelWindowInactive();
|
|
}
|
|
|
|
void ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayItemGeometry* aGeometry,
|
|
nsRegion* aInvalidRegion) const override {
|
|
auto geometry = static_cast<const nsDisplayTreeBodyGeometry*>(aGeometry);
|
|
|
|
if (IsWindowActive() != geometry->mWindowIsActive) {
|
|
bool snap;
|
|
aInvalidRegion->Or(*aInvalidRegion, GetBounds(aBuilder, &snap));
|
|
}
|
|
|
|
nsPaintedDisplayItem::ComputeInvalidationRegion(aBuilder, aGeometry,
|
|
aInvalidRegion);
|
|
}
|
|
|
|
void Paint(nsDisplayListBuilder* aBuilder, gfxContext* aCtx) override {
|
|
MOZ_ASSERT(aBuilder);
|
|
Unused << static_cast<nsTreeBodyFrame*>(mFrame)->PaintTreeBody(
|
|
*aCtx, GetPaintRect(aBuilder, aCtx), ToReferenceFrame(), aBuilder);
|
|
}
|
|
|
|
NS_DISPLAY_DECL_NAME("XULTreeBody", TYPE_XUL_TREE_BODY)
|
|
|
|
nsRect GetComponentAlphaBounds(
|
|
nsDisplayListBuilder* aBuilder) const override {
|
|
bool snap;
|
|
return GetBounds(aBuilder, &snap);
|
|
}
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
// Painting routines
|
|
void nsTreeBodyFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayListSet& aLists) {
|
|
// REVIEW: why did we paint if we were collapsed? that makes no sense!
|
|
if (!IsVisibleForPainting()) return; // We're invisible. Don't paint.
|
|
|
|
// Handles painting our background, border, and outline.
|
|
SimpleXULLeafFrame::BuildDisplayList(aBuilder, aLists);
|
|
|
|
// Bail out now if there's no view or we can't run script because the
|
|
// document is a zombie
|
|
if (!mView || !GetContent()->GetComposedDoc()->GetWindow()) return;
|
|
|
|
nsDisplayItem* item = MakeDisplayItem<nsDisplayTreeBody>(aBuilder, this);
|
|
aLists.Content()->AppendToTop(item);
|
|
}
|
|
|
|
ImgDrawResult nsTreeBodyFrame::PaintTreeBody(gfxContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
nsPoint aPt,
|
|
nsDisplayListBuilder* aBuilder) {
|
|
// Update our available height and our page count.
|
|
CalcInnerBox();
|
|
|
|
DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
|
|
|
|
aRenderingContext.Save();
|
|
aRenderingContext.Clip(NSRectToSnappedRect(
|
|
mInnerBox + aPt, PresContext()->AppUnitsPerDevPixel(), *drawTarget));
|
|
int32_t oldPageCount = mPageLength;
|
|
if (!mHasFixedRowCount) {
|
|
mPageLength =
|
|
(mRowHeight > 0) ? (mInnerBox.height / mRowHeight) : mRowCount;
|
|
}
|
|
|
|
if (oldPageCount != mPageLength ||
|
|
mHorzWidth != CalcHorzWidth(GetScrollParts())) {
|
|
// Schedule a ResizeReflow that will update our info properly.
|
|
PresShell()->FrameNeedsReflow(this, IntrinsicDirty::FrameAndAncestors,
|
|
NS_FRAME_IS_DIRTY);
|
|
}
|
|
#ifdef DEBUG
|
|
int32_t rowCount = mRowCount;
|
|
mView->GetRowCount(&rowCount);
|
|
NS_WARNING_ASSERTION(mRowCount == rowCount, "row count changed unexpectedly");
|
|
#endif
|
|
|
|
ImgDrawResult result = ImgDrawResult::SUCCESS;
|
|
|
|
// Loop through our columns and paint them (e.g., for sorting). This is only
|
|
// relevant when painting backgrounds, since columns contain no content.
|
|
// Content is contained in the rows.
|
|
for (nsTreeColumn* currCol = mColumns->GetFirstColumn(); currCol;
|
|
currCol = currCol->GetNext()) {
|
|
nsRect colRect;
|
|
nsresult rv =
|
|
currCol->GetRect(this, mInnerBox.y, mInnerBox.height, &colRect);
|
|
// Don't paint hidden columns.
|
|
if (NS_FAILED(rv) || colRect.width == 0) continue;
|
|
|
|
if (OffsetForHorzScroll(colRect, false)) {
|
|
nsRect dirtyRect;
|
|
colRect += aPt;
|
|
if (dirtyRect.IntersectRect(aDirtyRect, colRect)) {
|
|
result &= PaintColumn(currCol, colRect, PresContext(),
|
|
aRenderingContext, aDirtyRect);
|
|
}
|
|
}
|
|
}
|
|
// Loop through our on-screen rows.
|
|
for (int32_t i = mTopRowIndex;
|
|
i < mRowCount && i <= mTopRowIndex + mPageLength; i++) {
|
|
nsRect rowRect(mInnerBox.x, mInnerBox.y + mRowHeight * (i - mTopRowIndex),
|
|
mInnerBox.width, mRowHeight);
|
|
nsRect dirtyRect;
|
|
if (dirtyRect.IntersectRect(aDirtyRect, rowRect + aPt) &&
|
|
rowRect.y < (mInnerBox.y + mInnerBox.height)) {
|
|
result &= PaintRow(i, rowRect + aPt, PresContext(), aRenderingContext,
|
|
aDirtyRect, aPt, aBuilder);
|
|
}
|
|
}
|
|
|
|
if (mSlots && mSlots->mDropAllowed &&
|
|
(mSlots->mDropOrient == nsITreeView::DROP_BEFORE ||
|
|
mSlots->mDropOrient == nsITreeView::DROP_AFTER)) {
|
|
nscoord yPos = mInnerBox.y +
|
|
mRowHeight * (mSlots->mDropRow - mTopRowIndex) -
|
|
mRowHeight / 2;
|
|
nsRect feedbackRect(mInnerBox.x, yPos, mInnerBox.width, mRowHeight);
|
|
if (mSlots->mDropOrient == nsITreeView::DROP_AFTER)
|
|
feedbackRect.y += mRowHeight;
|
|
|
|
nsRect dirtyRect;
|
|
feedbackRect += aPt;
|
|
if (dirtyRect.IntersectRect(aDirtyRect, feedbackRect)) {
|
|
result &= PaintDropFeedback(feedbackRect, PresContext(),
|
|
aRenderingContext, aDirtyRect, aPt);
|
|
}
|
|
}
|
|
aRenderingContext.Restore();
|
|
|
|
return result;
|
|
}
|
|
|
|
ImgDrawResult nsTreeBodyFrame::PaintColumn(nsTreeColumn* aColumn,
|
|
const nsRect& aColumnRect,
|
|
nsPresContext* aPresContext,
|
|
gfxContext& aRenderingContext,
|
|
const nsRect& aDirtyRect) {
|
|
MOZ_ASSERT(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
// Now obtain the properties for our cell.
|
|
PrefillPropertyArray(-1, aColumn);
|
|
nsAutoString properties;
|
|
|
|
nsCOMPtr<nsITreeView> view = GetExistingView();
|
|
view->GetColumnProperties(aColumn, properties);
|
|
nsTreeUtils::TokenizeProperties(properties, mScratchArray);
|
|
|
|
// Resolve style for the column. It contains all the info we need to lay
|
|
// ourselves out and to paint.
|
|
ComputedStyle* colContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeColumn());
|
|
|
|
// Obtain the margins for the cell and then deflate our rect by that
|
|
// amount. The cell is assumed to be contained within the deflated rect.
|
|
nsRect colRect(aColumnRect);
|
|
nsMargin colMargin;
|
|
colContext->StyleMargin()->GetMargin(colMargin);
|
|
colRect.Deflate(colMargin);
|
|
|
|
return PaintBackgroundLayer(colContext, aPresContext, aRenderingContext,
|
|
colRect, aDirtyRect);
|
|
}
|
|
|
|
ImgDrawResult nsTreeBodyFrame::PaintRow(int32_t aRowIndex,
|
|
const nsRect& aRowRect,
|
|
nsPresContext* aPresContext,
|
|
gfxContext& aRenderingContext,
|
|
const nsRect& aDirtyRect, nsPoint aPt,
|
|
nsDisplayListBuilder* aBuilder) {
|
|
// We have been given a rect for our row. We treat this row like a full-blown
|
|
// frame, meaning that it can have borders, margins, padding, and a
|
|
// background.
|
|
|
|
// Without a view, we have no data. Check for this up front.
|
|
nsCOMPtr<nsITreeView> view = GetExistingView();
|
|
if (!view) {
|
|
return ImgDrawResult::SUCCESS;
|
|
}
|
|
|
|
nsresult rv;
|
|
|
|
// Now obtain the properties for our row.
|
|
// XXX Automatically fill in the following props: open, closed, container,
|
|
// leaf, selected, focused
|
|
PrefillPropertyArray(aRowIndex, nullptr);
|
|
|
|
nsAutoString properties;
|
|
view->GetRowProperties(aRowIndex, properties);
|
|
nsTreeUtils::TokenizeProperties(properties, mScratchArray);
|
|
|
|
// Resolve style for the row. It contains all the info we need to lay
|
|
// ourselves out and to paint.
|
|
ComputedStyle* rowContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeRow());
|
|
|
|
// Obtain the margins for the row and then deflate our rect by that
|
|
// amount. The row is assumed to be contained within the deflated rect.
|
|
nsRect rowRect(aRowRect);
|
|
nsMargin rowMargin;
|
|
rowContext->StyleMargin()->GetMargin(rowMargin);
|
|
rowRect.Deflate(rowMargin);
|
|
|
|
ImgDrawResult result = ImgDrawResult::SUCCESS;
|
|
|
|
// Paint our borders and background for our row rect.
|
|
result &= PaintBackgroundLayer(rowContext, aPresContext, aRenderingContext,
|
|
rowRect, aDirtyRect);
|
|
|
|
// Adjust the rect for its border and padding.
|
|
nsRect originalRowRect = rowRect;
|
|
AdjustForBorderPadding(rowContext, rowRect);
|
|
|
|
bool isSeparator = false;
|
|
view->IsSeparator(aRowIndex, &isSeparator);
|
|
if (isSeparator) {
|
|
// The row is a separator.
|
|
|
|
nscoord primaryX = rowRect.x;
|
|
nsTreeColumn* primaryCol = mColumns->GetPrimaryColumn();
|
|
if (primaryCol) {
|
|
// Paint the primary cell.
|
|
nsRect cellRect;
|
|
rv = primaryCol->GetRect(this, rowRect.y, rowRect.height, &cellRect);
|
|
if (NS_FAILED(rv)) {
|
|
MOZ_ASSERT_UNREACHABLE("primary column is invalid");
|
|
return result;
|
|
}
|
|
|
|
if (OffsetForHorzScroll(cellRect, false)) {
|
|
cellRect.x += aPt.x;
|
|
nsRect dirtyRect;
|
|
nsRect checkRect(cellRect.x, originalRowRect.y, cellRect.width,
|
|
originalRowRect.height);
|
|
if (dirtyRect.IntersectRect(aDirtyRect, checkRect)) {
|
|
result &=
|
|
PaintCell(aRowIndex, primaryCol, cellRect, aPresContext,
|
|
aRenderingContext, aDirtyRect, primaryX, aPt, aBuilder);
|
|
}
|
|
}
|
|
|
|
// Paint the left side of the separator.
|
|
nscoord currX;
|
|
nsTreeColumn* previousCol = primaryCol->GetPrevious();
|
|
if (previousCol) {
|
|
nsRect prevColRect;
|
|
rv = previousCol->GetRect(this, 0, 0, &prevColRect);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
currX = (prevColRect.x - mHorzPosition) + prevColRect.width + aPt.x;
|
|
} else {
|
|
MOZ_ASSERT_UNREACHABLE(
|
|
"The column before the primary column is "
|
|
"invalid");
|
|
currX = rowRect.x;
|
|
}
|
|
} else {
|
|
currX = rowRect.x;
|
|
}
|
|
|
|
int32_t level;
|
|
view->GetLevel(aRowIndex, &level);
|
|
if (level == 0) currX += mIndentation;
|
|
|
|
if (currX > rowRect.x) {
|
|
nsRect separatorRect(rowRect);
|
|
separatorRect.width -= rowRect.x + rowRect.width - currX;
|
|
result &= PaintSeparator(aRowIndex, separatorRect, aPresContext,
|
|
aRenderingContext, aDirtyRect);
|
|
}
|
|
}
|
|
|
|
// Paint the right side (whole) separator.
|
|
nsRect separatorRect(rowRect);
|
|
if (primaryX > rowRect.x) {
|
|
separatorRect.width -= primaryX - rowRect.x;
|
|
separatorRect.x += primaryX - rowRect.x;
|
|
}
|
|
result &= PaintSeparator(aRowIndex, separatorRect, aPresContext,
|
|
aRenderingContext, aDirtyRect);
|
|
} else {
|
|
// Now loop over our cells. Only paint a cell if it intersects with our
|
|
// dirty rect.
|
|
for (nsTreeColumn* currCol = mColumns->GetFirstColumn(); currCol;
|
|
currCol = currCol->GetNext()) {
|
|
nsRect cellRect;
|
|
rv = currCol->GetRect(this, rowRect.y, rowRect.height, &cellRect);
|
|
// Don't paint cells in hidden columns.
|
|
if (NS_FAILED(rv) || cellRect.width == 0) continue;
|
|
|
|
if (OffsetForHorzScroll(cellRect, false)) {
|
|
cellRect.x += aPt.x;
|
|
|
|
// for primary columns, use the row's vertical size so that the
|
|
// lines get drawn properly
|
|
nsRect checkRect = cellRect;
|
|
if (currCol->IsPrimary())
|
|
checkRect = nsRect(cellRect.x, originalRowRect.y, cellRect.width,
|
|
originalRowRect.height);
|
|
|
|
nsRect dirtyRect;
|
|
nscoord dummy;
|
|
if (dirtyRect.IntersectRect(aDirtyRect, checkRect))
|
|
result &=
|
|
PaintCell(aRowIndex, currCol, cellRect, aPresContext,
|
|
aRenderingContext, aDirtyRect, dummy, aPt, aBuilder);
|
|
}
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
ImgDrawResult nsTreeBodyFrame::PaintSeparator(int32_t aRowIndex,
|
|
const nsRect& aSeparatorRect,
|
|
nsPresContext* aPresContext,
|
|
gfxContext& aRenderingContext,
|
|
const nsRect& aDirtyRect) {
|
|
// Resolve style for the separator.
|
|
ComputedStyle* separatorContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeSeparator());
|
|
|
|
const nsStylePosition* stylePosition = separatorContext->StylePosition();
|
|
|
|
// Obtain the height for the separator or use the default value.
|
|
nscoord height;
|
|
if (stylePosition->mHeight.ConvertsToLength()) {
|
|
height = stylePosition->mHeight.ToLength();
|
|
} else {
|
|
// Use default height 2px.
|
|
height = nsPresContext::CSSPixelsToAppUnits(2);
|
|
}
|
|
|
|
// Obtain the margins for the separator and then deflate our rect by that
|
|
// amount. The separator is assumed to be contained within the deflated
|
|
// rect.
|
|
nsRect separatorRect(aSeparatorRect.x, aSeparatorRect.y, aSeparatorRect.width,
|
|
height);
|
|
nsMargin separatorMargin;
|
|
separatorContext->StyleMargin()->GetMargin(separatorMargin);
|
|
separatorRect.Deflate(separatorMargin);
|
|
|
|
// Center the separator.
|
|
separatorRect.y += (aSeparatorRect.height - height) / 2;
|
|
|
|
return PaintBackgroundLayer(separatorContext, aPresContext, aRenderingContext,
|
|
separatorRect, aDirtyRect);
|
|
}
|
|
|
|
ImgDrawResult nsTreeBodyFrame::PaintCell(
|
|
int32_t aRowIndex, nsTreeColumn* aColumn, const nsRect& aCellRect,
|
|
nsPresContext* aPresContext, gfxContext& aRenderingContext,
|
|
const nsRect& aDirtyRect, nscoord& aCurrX, nsPoint aPt,
|
|
nsDisplayListBuilder* aBuilder) {
|
|
MOZ_ASSERT(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
// Now obtain the properties for our cell.
|
|
// XXX Automatically fill in the following props: open, closed, container,
|
|
// leaf, selected, focused, and the col ID.
|
|
PrefillPropertyArray(aRowIndex, aColumn);
|
|
nsAutoString properties;
|
|
nsCOMPtr<nsITreeView> view = GetExistingView();
|
|
view->GetCellProperties(aRowIndex, aColumn, properties);
|
|
nsTreeUtils::TokenizeProperties(properties, mScratchArray);
|
|
|
|
// Resolve style for the cell. It contains all the info we need to lay
|
|
// ourselves out and to paint.
|
|
ComputedStyle* cellContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeCell());
|
|
|
|
bool isRTL = StyleVisibility()->mDirection == StyleDirection::Rtl;
|
|
|
|
// Obtain the margins for the cell and then deflate our rect by that
|
|
// amount. The cell is assumed to be contained within the deflated rect.
|
|
nsRect cellRect(aCellRect);
|
|
nsMargin cellMargin;
|
|
cellContext->StyleMargin()->GetMargin(cellMargin);
|
|
cellRect.Deflate(cellMargin);
|
|
|
|
// Paint our borders and background for our row rect.
|
|
ImgDrawResult result = PaintBackgroundLayer(
|
|
cellContext, aPresContext, aRenderingContext, cellRect, aDirtyRect);
|
|
|
|
// Adjust the rect for its border and padding.
|
|
AdjustForBorderPadding(cellContext, cellRect);
|
|
|
|
nscoord currX = cellRect.x;
|
|
nscoord remainingWidth = cellRect.width;
|
|
|
|
// Now we paint the contents of the cells.
|
|
// Directionality of the tree determines the order in which we paint.
|
|
// StyleDirection::Ltr means paint from left to right.
|
|
// StyleDirection::Rtl means paint from right to left.
|
|
|
|
if (aColumn->IsPrimary()) {
|
|
// If we're the primary column, we need to indent and paint the twisty and
|
|
// any connecting lines between siblings.
|
|
|
|
int32_t level;
|
|
view->GetLevel(aRowIndex, &level);
|
|
|
|
if (!isRTL) currX += mIndentation * level;
|
|
remainingWidth -= mIndentation * level;
|
|
|
|
// Resolve the style to use for the connecting lines.
|
|
ComputedStyle* lineContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeLine());
|
|
|
|
if (mIndentation && level &&
|
|
lineContext->StyleVisibility()->IsVisibleOrCollapsed()) {
|
|
// Paint the thread lines.
|
|
|
|
// Get the size of the twisty. We don't want to paint the twisty
|
|
// before painting of connecting lines since it would paint lines over
|
|
// the twisty. But we need to leave a place for it.
|
|
ComputedStyle* twistyContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeTwisty());
|
|
|
|
nsRect imageSize;
|
|
nsRect twistyRect(aCellRect);
|
|
GetTwistyRect(aRowIndex, aColumn, imageSize, twistyRect, aPresContext,
|
|
twistyContext);
|
|
|
|
nsMargin twistyMargin;
|
|
twistyContext->StyleMargin()->GetMargin(twistyMargin);
|
|
twistyRect.Inflate(twistyMargin);
|
|
|
|
const nsStyleBorder* borderStyle = lineContext->StyleBorder();
|
|
// Resolve currentcolor values against the treeline context
|
|
nscolor color = borderStyle->mBorderLeftColor.CalcColor(*lineContext);
|
|
ColorPattern colorPatt(ToDeviceColor(color));
|
|
|
|
StyleBorderStyle style = borderStyle->GetBorderStyle(eSideLeft);
|
|
StrokeOptions strokeOptions;
|
|
nsLayoutUtils::InitDashPattern(strokeOptions, style);
|
|
|
|
nscoord srcX = currX + twistyRect.width - mIndentation / 2;
|
|
nscoord lineY = (aRowIndex - mTopRowIndex) * mRowHeight + aPt.y;
|
|
|
|
DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
|
|
nsPresContext* pc = PresContext();
|
|
|
|
// Don't paint off our cell.
|
|
if (srcX <= cellRect.x + cellRect.width) {
|
|
nscoord destX = currX + twistyRect.width;
|
|
if (destX > cellRect.x + cellRect.width)
|
|
destX = cellRect.x + cellRect.width;
|
|
if (isRTL) {
|
|
srcX = currX + remainingWidth - (srcX - cellRect.x);
|
|
destX = currX + remainingWidth - (destX - cellRect.x);
|
|
}
|
|
Point p1(pc->AppUnitsToGfxUnits(srcX),
|
|
pc->AppUnitsToGfxUnits(lineY + mRowHeight / 2));
|
|
Point p2(pc->AppUnitsToGfxUnits(destX),
|
|
pc->AppUnitsToGfxUnits(lineY + mRowHeight / 2));
|
|
SnapLineToDevicePixelsForStroking(p1, p2, *drawTarget,
|
|
strokeOptions.mLineWidth);
|
|
drawTarget->StrokeLine(p1, p2, colorPatt, strokeOptions);
|
|
}
|
|
|
|
int32_t currentParent = aRowIndex;
|
|
for (int32_t i = level; i > 0; i--) {
|
|
if (srcX <= cellRect.x + cellRect.width) {
|
|
// Paint full vertical line only if we have next sibling.
|
|
bool hasNextSibling;
|
|
view->HasNextSibling(currentParent, aRowIndex, &hasNextSibling);
|
|
if (hasNextSibling || i == level) {
|
|
Point p1(pc->AppUnitsToGfxUnits(srcX),
|
|
pc->AppUnitsToGfxUnits(lineY));
|
|
Point p2;
|
|
p2.x = pc->AppUnitsToGfxUnits(srcX);
|
|
|
|
if (hasNextSibling)
|
|
p2.y = pc->AppUnitsToGfxUnits(lineY + mRowHeight);
|
|
else if (i == level)
|
|
p2.y = pc->AppUnitsToGfxUnits(lineY + mRowHeight / 2);
|
|
|
|
SnapLineToDevicePixelsForStroking(p1, p2, *drawTarget,
|
|
strokeOptions.mLineWidth);
|
|
drawTarget->StrokeLine(p1, p2, colorPatt, strokeOptions);
|
|
}
|
|
}
|
|
|
|
int32_t parent;
|
|
if (NS_FAILED(view->GetParentIndex(currentParent, &parent)) ||
|
|
parent < 0)
|
|
break;
|
|
currentParent = parent;
|
|
srcX -= mIndentation;
|
|
}
|
|
}
|
|
|
|
// Always leave space for the twisty.
|
|
nsRect twistyRect(currX, cellRect.y, remainingWidth, cellRect.height);
|
|
result &= PaintTwisty(aRowIndex, aColumn, twistyRect, aPresContext,
|
|
aRenderingContext, aDirtyRect, remainingWidth, currX);
|
|
}
|
|
|
|
// Now paint the icon for our cell.
|
|
nsRect iconRect(currX, cellRect.y, remainingWidth, cellRect.height);
|
|
nsRect dirtyRect;
|
|
if (dirtyRect.IntersectRect(aDirtyRect, iconRect)) {
|
|
result &= PaintImage(aRowIndex, aColumn, iconRect, aPresContext,
|
|
aRenderingContext, aDirtyRect, remainingWidth, currX,
|
|
aBuilder);
|
|
}
|
|
|
|
// Now paint our element, but only if we aren't a cycler column.
|
|
// XXX until we have the ability to load images, allow the view to
|
|
// insert text into cycler columns...
|
|
if (!aColumn->IsCycler()) {
|
|
nsRect elementRect(currX, cellRect.y, remainingWidth, cellRect.height);
|
|
nsRect dirtyRect;
|
|
if (dirtyRect.IntersectRect(aDirtyRect, elementRect)) {
|
|
switch (aColumn->GetType()) {
|
|
case TreeColumn_Binding::TYPE_TEXT:
|
|
result &= PaintText(aRowIndex, aColumn, elementRect, aPresContext,
|
|
aRenderingContext, aDirtyRect, currX);
|
|
break;
|
|
case TreeColumn_Binding::TYPE_CHECKBOX:
|
|
result &= PaintCheckbox(aRowIndex, aColumn, elementRect, aPresContext,
|
|
aRenderingContext, aDirtyRect);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
aCurrX = currX;
|
|
|
|
return result;
|
|
}
|
|
|
|
ImgDrawResult nsTreeBodyFrame::PaintTwisty(
|
|
int32_t aRowIndex, nsTreeColumn* aColumn, const nsRect& aTwistyRect,
|
|
nsPresContext* aPresContext, gfxContext& aRenderingContext,
|
|
const nsRect& aDirtyRect, nscoord& aRemainingWidth, nscoord& aCurrX) {
|
|
MOZ_ASSERT(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
bool isRTL = StyleVisibility()->mDirection == StyleDirection::Rtl;
|
|
nscoord rightEdge = aCurrX + aRemainingWidth;
|
|
// Paint the twisty, but only if we are a non-empty container.
|
|
bool shouldPaint = false;
|
|
bool isContainer = false;
|
|
nsCOMPtr<nsITreeView> view = GetExistingView();
|
|
view->IsContainer(aRowIndex, &isContainer);
|
|
if (isContainer) {
|
|
bool isContainerEmpty = false;
|
|
view->IsContainerEmpty(aRowIndex, &isContainerEmpty);
|
|
if (!isContainerEmpty) shouldPaint = true;
|
|
}
|
|
|
|
// Resolve style for the twisty.
|
|
ComputedStyle* twistyContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeTwisty());
|
|
|
|
// Obtain the margins for the twisty and then deflate our rect by that
|
|
// amount. The twisty is assumed to be contained within the deflated rect.
|
|
nsRect twistyRect(aTwistyRect);
|
|
nsMargin twistyMargin;
|
|
twistyContext->StyleMargin()->GetMargin(twistyMargin);
|
|
twistyRect.Deflate(twistyMargin);
|
|
|
|
nsRect imageSize;
|
|
GetTwistyRect(aRowIndex, aColumn, imageSize, twistyRect, aPresContext,
|
|
twistyContext);
|
|
|
|
// Subtract out the remaining width. This is done even when we don't actually
|
|
// paint a twisty in this cell, so that cells in different rows still line up.
|
|
nsRect copyRect(twistyRect);
|
|
copyRect.Inflate(twistyMargin);
|
|
aRemainingWidth -= copyRect.width;
|
|
if (!isRTL) {
|
|
aCurrX += copyRect.width;
|
|
}
|
|
|
|
auto result = ImgDrawResult::SUCCESS;
|
|
if (!shouldPaint) {
|
|
return result;
|
|
}
|
|
// Paint our borders and background for our image rect.
|
|
result &= PaintBackgroundLayer(twistyContext, aPresContext, aRenderingContext,
|
|
twistyRect, aDirtyRect);
|
|
|
|
// Time to paint the twisty.
|
|
// Adjust the rect for its border and padding.
|
|
nsMargin bp;
|
|
GetBorderPadding(twistyContext, bp);
|
|
twistyRect.Deflate(bp);
|
|
if (isRTL) twistyRect.x = rightEdge - twistyRect.width;
|
|
imageSize.Deflate(bp);
|
|
|
|
// Get the image for drawing.
|
|
nsCOMPtr<imgIContainer> image;
|
|
GetImage(aRowIndex, aColumn, true, twistyContext, getter_AddRefs(image));
|
|
if (!image) {
|
|
return result;
|
|
}
|
|
nsPoint anchorPoint = twistyRect.TopLeft();
|
|
|
|
// Center the image. XXX Obey vertical-align style prop?
|
|
if (imageSize.height < twistyRect.height) {
|
|
anchorPoint.y += (twistyRect.height - imageSize.height) / 2;
|
|
}
|
|
|
|
// Apply context paint if applicable
|
|
SVGImageContext svgContext;
|
|
SVGImageContext::MaybeStoreContextPaint(svgContext, *aPresContext,
|
|
*twistyContext, image);
|
|
|
|
// Paint the image.
|
|
result &= nsLayoutUtils::DrawSingleUnscaledImage(
|
|
aRenderingContext, aPresContext, image, SamplingFilter::POINT,
|
|
anchorPoint, &aDirtyRect, svgContext, imgIContainer::FLAG_NONE,
|
|
&imageSize);
|
|
return result;
|
|
}
|
|
|
|
ImgDrawResult nsTreeBodyFrame::PaintImage(
|
|
int32_t aRowIndex, nsTreeColumn* aColumn, const nsRect& aImageRect,
|
|
nsPresContext* aPresContext, gfxContext& aRenderingContext,
|
|
const nsRect& aDirtyRect, nscoord& aRemainingWidth, nscoord& aCurrX,
|
|
nsDisplayListBuilder* aBuilder) {
|
|
MOZ_ASSERT(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
bool isRTL = StyleVisibility()->mDirection == StyleDirection::Rtl;
|
|
nscoord rightEdge = aCurrX + aRemainingWidth;
|
|
// Resolve style for the image.
|
|
ComputedStyle* imageContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeImage());
|
|
|
|
// Obtain the margins for the image and then deflate our rect by that
|
|
// amount. The image is assumed to be contained within the deflated rect.
|
|
nsRect imageRect(aImageRect);
|
|
nsMargin imageMargin;
|
|
imageContext->StyleMargin()->GetMargin(imageMargin);
|
|
imageRect.Deflate(imageMargin);
|
|
|
|
// Get the image.
|
|
nsCOMPtr<imgIContainer> image;
|
|
GetImage(aRowIndex, aColumn, false, imageContext, getter_AddRefs(image));
|
|
|
|
// Get the image destination size.
|
|
nsSize imageDestSize = GetImageDestSize(imageContext, image);
|
|
if (!imageDestSize.width || !imageDestSize.height) {
|
|
return ImgDrawResult::SUCCESS;
|
|
}
|
|
|
|
// Get the borders and padding.
|
|
nsMargin bp(0, 0, 0, 0);
|
|
GetBorderPadding(imageContext, bp);
|
|
|
|
// destRect will be passed as the aDestRect argument in the DrawImage method.
|
|
// Start with the imageDestSize width and height.
|
|
nsRect destRect(0, 0, imageDestSize.width, imageDestSize.height);
|
|
// Inflate destRect for borders and padding so that we can compare/adjust
|
|
// with respect to imageRect.
|
|
destRect.Inflate(bp);
|
|
|
|
// The destRect width and height have not been adjusted to fit within the
|
|
// cell width and height.
|
|
// We must adjust the width even if image is null, because the width is used
|
|
// to update the aRemainingWidth and aCurrX values.
|
|
// Since the height isn't used unless the image is not null, we will adjust
|
|
// the height inside the if (image) block below.
|
|
|
|
if (destRect.width > imageRect.width) {
|
|
// The destRect is too wide to fit within the cell width.
|
|
// Adjust destRect width to fit within the cell width.
|
|
destRect.width = imageRect.width;
|
|
} else {
|
|
// The cell is wider than the destRect.
|
|
// In a cycler column, the image is centered horizontally.
|
|
if (!aColumn->IsCycler()) {
|
|
// If this column is not a cycler, we won't center the image horizontally.
|
|
// We adjust the imageRect width so that the image is placed at the start
|
|
// of the cell.
|
|
imageRect.width = destRect.width;
|
|
}
|
|
}
|
|
|
|
ImgDrawResult result = ImgDrawResult::SUCCESS;
|
|
|
|
if (image) {
|
|
if (isRTL) imageRect.x = rightEdge - imageRect.width;
|
|
// Paint our borders and background for our image rect
|
|
result &= PaintBackgroundLayer(imageContext, aPresContext,
|
|
aRenderingContext, imageRect, aDirtyRect);
|
|
|
|
// The destRect x and y have not been set yet. Let's do that now.
|
|
// Initially, we use the imageRect x and y.
|
|
destRect.x = imageRect.x;
|
|
destRect.y = imageRect.y;
|
|
|
|
if (destRect.width < imageRect.width) {
|
|
// The destRect width is smaller than the cell width.
|
|
// Center the image horizontally in the cell.
|
|
// Adjust the destRect x accordingly.
|
|
destRect.x += (imageRect.width - destRect.width) / 2;
|
|
}
|
|
|
|
// Now it's time to adjust the destRect height to fit within the cell
|
|
// height.
|
|
if (destRect.height > imageRect.height) {
|
|
// The destRect height is larger than the cell height.
|
|
// Adjust destRect height to fit within the cell height.
|
|
destRect.height = imageRect.height;
|
|
} else if (destRect.height < imageRect.height) {
|
|
// The destRect height is smaller than the cell height.
|
|
// Center the image vertically in the cell.
|
|
// Adjust the destRect y accordingly.
|
|
destRect.y += (imageRect.height - destRect.height) / 2;
|
|
}
|
|
|
|
// It's almost time to paint the image.
|
|
// Deflate destRect for the border and padding.
|
|
destRect.Deflate(bp);
|
|
|
|
// Compute the area where our whole image would be mapped, to get the
|
|
// desired subregion onto our actual destRect:
|
|
nsRect wholeImageDest;
|
|
CSSIntSize rawImageCSSIntSize;
|
|
if (NS_SUCCEEDED(image->GetWidth(&rawImageCSSIntSize.width)) &&
|
|
NS_SUCCEEDED(image->GetHeight(&rawImageCSSIntSize.height))) {
|
|
// Get the image source rectangle - the rectangle containing the part of
|
|
// the image that we are going to display. sourceRect will be passed as
|
|
// the aSrcRect argument in the DrawImage method.
|
|
nsRect sourceRect = GetImageSourceRect(imageContext, image);
|
|
|
|
// Let's say that the image is 100 pixels tall and that the CSS has
|
|
// specified that the destination height should be 50 pixels tall. Let's
|
|
// say that the cell height is only 20 pixels. So, in those 20 visible
|
|
// pixels, we want to see the top 20/50ths of the image. So, the
|
|
// sourceRect.height should be 100 * 20 / 50, which is 40 pixels.
|
|
// Essentially, we are scaling the image as dictated by the CSS
|
|
// destination height and width, and we are then clipping the scaled
|
|
// image by the cell width and height.
|
|
nsSize rawImageSize(CSSPixel::ToAppUnits(rawImageCSSIntSize));
|
|
wholeImageDest = nsLayoutUtils::GetWholeImageDestination(
|
|
rawImageSize, sourceRect, nsRect(destRect.TopLeft(), imageDestSize));
|
|
} else {
|
|
// GetWidth/GetHeight failed, so we can't easily map a subregion of the
|
|
// source image onto the destination area.
|
|
// * If this happens with a RasterImage, it probably means the image is
|
|
// in an error state, and we shouldn't draw anything. Hence, we leave
|
|
// wholeImageDest as an empty rect (its initial state).
|
|
// * If this happens with a VectorImage, it probably means the image has
|
|
// no explicit width or height attribute -- but we can still proceed and
|
|
// just treat the destination area as our whole SVG image area. Hence, we
|
|
// set wholeImageDest to the full destRect.
|
|
if (image->GetType() == imgIContainer::TYPE_VECTOR) {
|
|
wholeImageDest = destRect;
|
|
}
|
|
}
|
|
|
|
const auto* styleEffects = imageContext->StyleEffects();
|
|
gfxGroupForBlendAutoSaveRestore autoGroupForBlend(&aRenderingContext);
|
|
if (!styleEffects->IsOpaque()) {
|
|
autoGroupForBlend.PushGroupForBlendBack(gfxContentType::COLOR_ALPHA,
|
|
styleEffects->mOpacity);
|
|
}
|
|
|
|
uint32_t drawFlags = aBuilder && aBuilder->UseHighQualityScaling()
|
|
? imgIContainer::FLAG_HIGH_QUALITY_SCALING
|
|
: imgIContainer::FLAG_NONE;
|
|
result &= nsLayoutUtils::DrawImage(
|
|
aRenderingContext, imageContext, aPresContext, image,
|
|
nsLayoutUtils::GetSamplingFilterForFrame(this), wholeImageDest,
|
|
destRect, destRect.TopLeft(), aDirtyRect, drawFlags);
|
|
}
|
|
|
|
// Update the aRemainingWidth and aCurrX values.
|
|
imageRect.Inflate(imageMargin);
|
|
aRemainingWidth -= imageRect.width;
|
|
if (!isRTL) {
|
|
aCurrX += imageRect.width;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
ImgDrawResult nsTreeBodyFrame::PaintText(
|
|
int32_t aRowIndex, nsTreeColumn* aColumn, const nsRect& aTextRect,
|
|
nsPresContext* aPresContext, gfxContext& aRenderingContext,
|
|
const nsRect& aDirtyRect, nscoord& aCurrX) {
|
|
MOZ_ASSERT(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
bool isRTL = StyleVisibility()->mDirection == StyleDirection::Rtl;
|
|
|
|
// Now obtain the text for our cell.
|
|
nsAutoString text;
|
|
nsCOMPtr<nsITreeView> view = GetExistingView();
|
|
view->GetCellText(aRowIndex, aColumn, text);
|
|
|
|
// We're going to paint this text so we need to ensure bidi is enabled if
|
|
// necessary
|
|
CheckTextForBidi(text);
|
|
|
|
ImgDrawResult result = ImgDrawResult::SUCCESS;
|
|
|
|
if (text.Length() == 0) {
|
|
// Don't paint an empty string. XXX What about background/borders? Still
|
|
// paint?
|
|
return result;
|
|
}
|
|
|
|
int32_t appUnitsPerDevPixel = PresContext()->AppUnitsPerDevPixel();
|
|
DrawTarget* drawTarget = aRenderingContext.GetDrawTarget();
|
|
|
|
// Resolve style for the text. It contains all the info we need to lay
|
|
// ourselves out and to paint.
|
|
ComputedStyle* textContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeCellText());
|
|
|
|
// Obtain the margins for the text and then deflate our rect by that
|
|
// amount. The text is assumed to be contained within the deflated rect.
|
|
nsRect textRect(aTextRect);
|
|
nsMargin textMargin;
|
|
textContext->StyleMargin()->GetMargin(textMargin);
|
|
textRect.Deflate(textMargin);
|
|
|
|
// Adjust the rect for its border and padding.
|
|
nsMargin bp(0, 0, 0, 0);
|
|
GetBorderPadding(textContext, bp);
|
|
textRect.Deflate(bp);
|
|
|
|
// Compute our text size.
|
|
RefPtr<nsFontMetrics> fontMet =
|
|
nsLayoutUtils::GetFontMetricsForComputedStyle(textContext, PresContext());
|
|
|
|
nscoord height = fontMet->MaxHeight();
|
|
nscoord baseline = fontMet->MaxAscent();
|
|
|
|
// Center the text. XXX Obey vertical-align style prop?
|
|
if (height < textRect.height) {
|
|
textRect.y += (textRect.height - height) / 2;
|
|
textRect.height = height;
|
|
}
|
|
|
|
// Set our font.
|
|
AdjustForCellText(text, aRowIndex, aColumn, aRenderingContext, *fontMet,
|
|
textRect);
|
|
textRect.Inflate(bp);
|
|
|
|
// Subtract out the remaining width.
|
|
if (!isRTL) aCurrX += textRect.width + textMargin.LeftRight();
|
|
|
|
result &= PaintBackgroundLayer(textContext, aPresContext, aRenderingContext,
|
|
textRect, aDirtyRect);
|
|
|
|
// Time to paint our text.
|
|
textRect.Deflate(bp);
|
|
|
|
// Set our color.
|
|
ColorPattern color(ToDeviceColor(textContext->StyleText()->mColor));
|
|
|
|
// Draw decorations.
|
|
StyleTextDecorationLine decorations =
|
|
textContext->StyleTextReset()->mTextDecorationLine;
|
|
|
|
nscoord offset;
|
|
nscoord size;
|
|
if (decorations & (StyleTextDecorationLine::OVERLINE |
|
|
StyleTextDecorationLine::UNDERLINE)) {
|
|
fontMet->GetUnderline(offset, size);
|
|
if (decorations & StyleTextDecorationLine::OVERLINE) {
|
|
nsRect r(textRect.x, textRect.y, textRect.width, size);
|
|
Rect devPxRect = NSRectToSnappedRect(r, appUnitsPerDevPixel, *drawTarget);
|
|
drawTarget->FillRect(devPxRect, color);
|
|
}
|
|
if (decorations & StyleTextDecorationLine::UNDERLINE) {
|
|
nsRect r(textRect.x, textRect.y + baseline - offset, textRect.width,
|
|
size);
|
|
Rect devPxRect = NSRectToSnappedRect(r, appUnitsPerDevPixel, *drawTarget);
|
|
drawTarget->FillRect(devPxRect, color);
|
|
}
|
|
}
|
|
if (decorations & StyleTextDecorationLine::LINE_THROUGH) {
|
|
fontMet->GetStrikeout(offset, size);
|
|
nsRect r(textRect.x, textRect.y + baseline - offset, textRect.width, size);
|
|
Rect devPxRect = NSRectToSnappedRect(r, appUnitsPerDevPixel, *drawTarget);
|
|
drawTarget->FillRect(devPxRect, color);
|
|
}
|
|
ComputedStyle* cellContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeCell());
|
|
|
|
const auto* styleEffects = textContext->StyleEffects();
|
|
gfxGroupForBlendAutoSaveRestore autoGroupForBlend(&aRenderingContext);
|
|
if (!styleEffects->IsOpaque()) {
|
|
autoGroupForBlend.PushGroupForBlendBack(gfxContentType::COLOR_ALPHA,
|
|
styleEffects->mOpacity);
|
|
}
|
|
|
|
aRenderingContext.SetColor(
|
|
sRGBColor::FromABGR(textContext->StyleText()->mColor.ToColor()));
|
|
nsLayoutUtils::DrawString(
|
|
this, *fontMet, &aRenderingContext, text.get(), text.Length(),
|
|
textRect.TopLeft() + nsPoint(0, baseline), cellContext);
|
|
|
|
return result;
|
|
}
|
|
|
|
ImgDrawResult nsTreeBodyFrame::PaintCheckbox(int32_t aRowIndex,
|
|
nsTreeColumn* aColumn,
|
|
const nsRect& aCheckboxRect,
|
|
nsPresContext* aPresContext,
|
|
gfxContext& aRenderingContext,
|
|
const nsRect& aDirtyRect) {
|
|
MOZ_ASSERT(aColumn && aColumn->GetFrame(), "invalid column passed");
|
|
|
|
// Resolve style for the checkbox.
|
|
ComputedStyle* checkboxContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeCheckbox());
|
|
|
|
nscoord rightEdge = aCheckboxRect.XMost();
|
|
|
|
// Obtain the margins for the checkbox and then deflate our rect by that
|
|
// amount. The checkbox is assumed to be contained within the deflated rect.
|
|
nsRect checkboxRect(aCheckboxRect);
|
|
nsMargin checkboxMargin;
|
|
checkboxContext->StyleMargin()->GetMargin(checkboxMargin);
|
|
checkboxRect.Deflate(checkboxMargin);
|
|
|
|
nsRect imageSize = GetImageSize(aRowIndex, aColumn, true, checkboxContext);
|
|
|
|
if (imageSize.height > checkboxRect.height) {
|
|
imageSize.height = checkboxRect.height;
|
|
}
|
|
if (imageSize.width > checkboxRect.width) {
|
|
imageSize.width = checkboxRect.width;
|
|
}
|
|
|
|
if (StyleVisibility()->mDirection == StyleDirection::Rtl) {
|
|
checkboxRect.x = rightEdge - checkboxRect.width;
|
|
}
|
|
|
|
// Paint our borders and background for our image rect.
|
|
ImgDrawResult result =
|
|
PaintBackgroundLayer(checkboxContext, aPresContext, aRenderingContext,
|
|
checkboxRect, aDirtyRect);
|
|
|
|
// Time to paint the checkbox.
|
|
// Adjust the rect for its border and padding.
|
|
nsMargin bp(0, 0, 0, 0);
|
|
GetBorderPadding(checkboxContext, bp);
|
|
checkboxRect.Deflate(bp);
|
|
|
|
// Get the image for drawing.
|
|
nsCOMPtr<imgIContainer> image;
|
|
GetImage(aRowIndex, aColumn, true, checkboxContext, getter_AddRefs(image));
|
|
if (image) {
|
|
nsPoint pt = checkboxRect.TopLeft();
|
|
|
|
if (imageSize.height < checkboxRect.height) {
|
|
pt.y += (checkboxRect.height - imageSize.height) / 2;
|
|
}
|
|
|
|
if (imageSize.width < checkboxRect.width) {
|
|
pt.x += (checkboxRect.width - imageSize.width) / 2;
|
|
}
|
|
|
|
// Apply context paint if applicable
|
|
SVGImageContext svgContext;
|
|
SVGImageContext::MaybeStoreContextPaint(svgContext, *aPresContext,
|
|
*checkboxContext, image);
|
|
// Paint the image.
|
|
result &= nsLayoutUtils::DrawSingleUnscaledImage(
|
|
aRenderingContext, aPresContext, image, SamplingFilter::POINT, pt,
|
|
&aDirtyRect, svgContext, imgIContainer::FLAG_NONE, &imageSize);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
ImgDrawResult nsTreeBodyFrame::PaintDropFeedback(
|
|
const nsRect& aDropFeedbackRect, nsPresContext* aPresContext,
|
|
gfxContext& aRenderingContext, const nsRect& aDirtyRect, nsPoint aPt) {
|
|
// Paint the drop feedback in between rows.
|
|
|
|
nscoord currX;
|
|
|
|
// Adjust for the primary cell.
|
|
nsTreeColumn* primaryCol = mColumns->GetPrimaryColumn();
|
|
|
|
if (primaryCol) {
|
|
#ifdef DEBUG
|
|
nsresult rv =
|
|
#endif
|
|
primaryCol->GetXInTwips(this, &currX);
|
|
NS_ASSERTION(NS_SUCCEEDED(rv), "primary column is invalid?");
|
|
|
|
currX += aPt.x - mHorzPosition;
|
|
} else {
|
|
currX = aDropFeedbackRect.x;
|
|
}
|
|
|
|
PrefillPropertyArray(mSlots->mDropRow, primaryCol);
|
|
|
|
// Resolve the style to use for the drop feedback.
|
|
ComputedStyle* feedbackContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeDropFeedback());
|
|
|
|
ImgDrawResult result = ImgDrawResult::SUCCESS;
|
|
|
|
// Paint only if it is visible.
|
|
nsCOMPtr<nsITreeView> view = GetExistingView();
|
|
if (feedbackContext->StyleVisibility()->IsVisibleOrCollapsed()) {
|
|
int32_t level;
|
|
view->GetLevel(mSlots->mDropRow, &level);
|
|
|
|
// If our previous or next row has greater level use that for
|
|
// correct visual indentation.
|
|
if (mSlots->mDropOrient == nsITreeView::DROP_BEFORE) {
|
|
if (mSlots->mDropRow > 0) {
|
|
int32_t previousLevel;
|
|
view->GetLevel(mSlots->mDropRow - 1, &previousLevel);
|
|
if (previousLevel > level) level = previousLevel;
|
|
}
|
|
} else {
|
|
if (mSlots->mDropRow < mRowCount - 1) {
|
|
int32_t nextLevel;
|
|
view->GetLevel(mSlots->mDropRow + 1, &nextLevel);
|
|
if (nextLevel > level) level = nextLevel;
|
|
}
|
|
}
|
|
|
|
currX += mIndentation * level;
|
|
|
|
if (primaryCol) {
|
|
ComputedStyle* twistyContext =
|
|
GetPseudoComputedStyle(nsCSSAnonBoxes::mozTreeTwisty());
|
|
nsRect imageSize;
|
|
nsRect twistyRect;
|
|
GetTwistyRect(mSlots->mDropRow, primaryCol, imageSize, twistyRect,
|
|
aPresContext, twistyContext);
|
|
nsMargin twistyMargin;
|
|
twistyContext->StyleMargin()->GetMargin(twistyMargin);
|
|
twistyRect.Inflate(twistyMargin);
|
|
currX += twistyRect.width;
|
|
}
|
|
|
|
const nsStylePosition* stylePosition = feedbackContext->StylePosition();
|
|
|
|
// Obtain the width for the drop feedback or use default value.
|
|
nscoord width;
|
|
if (stylePosition->mWidth.ConvertsToLength()) {
|
|
width = stylePosition->mWidth.ToLength();
|
|
} else {
|
|
// Use default width 50px.
|
|
width = nsPresContext::CSSPixelsToAppUnits(50);
|
|
}
|
|
|
|
// Obtain the height for the drop feedback or use default value.
|
|
nscoord height;
|
|
if (stylePosition->mHeight.ConvertsToLength()) {
|
|
height = stylePosition->mHeight.ToLength();
|
|
} else {
|
|
// Use default height 2px.
|
|
height = nsPresContext::CSSPixelsToAppUnits(2);
|
|
}
|
|
|
|
// Obtain the margins for the drop feedback and then deflate our rect
|
|
// by that amount.
|
|
nsRect feedbackRect(currX, aDropFeedbackRect.y, width, height);
|
|
nsMargin margin;
|
|
feedbackContext->StyleMargin()->GetMargin(margin);
|
|
feedbackRect.Deflate(margin);
|
|
|
|
feedbackRect.y += (aDropFeedbackRect.height - height) / 2;
|
|
|
|
// Finally paint the drop feedback.
|
|
result &= PaintBackgroundLayer(feedbackContext, aPresContext,
|
|
aRenderingContext, feedbackRect, aDirtyRect);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
ImgDrawResult nsTreeBodyFrame::PaintBackgroundLayer(
|
|
ComputedStyle* aComputedStyle, nsPresContext* aPresContext,
|
|
gfxContext& aRenderingContext, const nsRect& aRect,
|
|
const nsRect& aDirtyRect) {
|
|
const nsStyleBorder* myBorder = aComputedStyle->StyleBorder();
|
|
nsCSSRendering::PaintBGParams params =
|
|
nsCSSRendering::PaintBGParams::ForAllLayers(
|
|
*aPresContext, aDirtyRect, aRect, this,
|
|
nsCSSRendering::PAINTBG_SYNC_DECODE_IMAGES);
|
|
ImgDrawResult result = nsCSSRendering::PaintStyleImageLayerWithSC(
|
|
params, aRenderingContext, aComputedStyle, *myBorder);
|
|
|
|
result &= nsCSSRendering::PaintBorderWithStyleBorder(
|
|
aPresContext, aRenderingContext, this, aDirtyRect, aRect, *myBorder,
|
|
mComputedStyle, PaintBorderFlags::SyncDecodeImages);
|
|
|
|
nsCSSRendering::PaintNonThemedOutline(aPresContext, aRenderingContext, this,
|
|
aDirtyRect, aRect, aComputedStyle);
|
|
|
|
return result;
|
|
}
|
|
|
|
// Scrolling
|
|
nsresult nsTreeBodyFrame::EnsureRowIsVisible(int32_t aRow) {
|
|
ScrollParts parts = GetScrollParts();
|
|
nsresult rv = EnsureRowIsVisibleInternal(parts, aRow);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
UpdateScrollbars(parts);
|
|
return rv;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::EnsureRowIsVisibleInternal(const ScrollParts& aParts,
|
|
int32_t aRow) {
|
|
if (!mView || !mPageLength) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (mTopRowIndex <= aRow && mTopRowIndex + mPageLength > aRow) return NS_OK;
|
|
|
|
if (aRow < mTopRowIndex)
|
|
ScrollToRowInternal(aParts, aRow);
|
|
else {
|
|
// Bring it just on-screen.
|
|
int32_t distance = aRow - (mTopRowIndex + mPageLength) + 1;
|
|
ScrollToRowInternal(aParts, mTopRowIndex + distance);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::EnsureCellIsVisible(int32_t aRow,
|
|
nsTreeColumn* aCol) {
|
|
if (!aCol) return NS_ERROR_INVALID_ARG;
|
|
|
|
ScrollParts parts = GetScrollParts();
|
|
|
|
nscoord result = -1;
|
|
nsresult rv;
|
|
|
|
nscoord columnPos;
|
|
rv = aCol->GetXInTwips(this, &columnPos);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
nscoord columnWidth;
|
|
rv = aCol->GetWidthInTwips(this, &columnWidth);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
// If the start of the column is before the
|
|
// start of the horizontal view, then scroll
|
|
if (columnPos < mHorzPosition) result = columnPos;
|
|
// If the end of the column is past the end of
|
|
// the horizontal view, then scroll
|
|
else if ((columnPos + columnWidth) > (mHorzPosition + mInnerBox.width))
|
|
result = ((columnPos + columnWidth) - (mHorzPosition + mInnerBox.width)) +
|
|
mHorzPosition;
|
|
|
|
if (result != -1) {
|
|
rv = ScrollHorzInternal(parts, result);
|
|
if (NS_FAILED(rv)) return rv;
|
|
}
|
|
|
|
rv = EnsureRowIsVisibleInternal(parts, aRow);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
UpdateScrollbars(parts);
|
|
return rv;
|
|
}
|
|
|
|
void nsTreeBodyFrame::ScrollToRow(int32_t aRow) {
|
|
ScrollParts parts = GetScrollParts();
|
|
ScrollToRowInternal(parts, aRow);
|
|
UpdateScrollbars(parts);
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::ScrollToRowInternal(const ScrollParts& aParts,
|
|
int32_t aRow) {
|
|
ScrollInternal(aParts, aRow);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsTreeBodyFrame::ScrollByLines(int32_t aNumLines) {
|
|
if (!mView) {
|
|
return;
|
|
}
|
|
int32_t newIndex = mTopRowIndex + aNumLines;
|
|
ScrollToRow(newIndex);
|
|
}
|
|
|
|
void nsTreeBodyFrame::ScrollByPages(int32_t aNumPages) {
|
|
if (!mView) {
|
|
return;
|
|
}
|
|
int32_t newIndex = mTopRowIndex + aNumPages * mPageLength;
|
|
ScrollToRow(newIndex);
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::ScrollInternal(const ScrollParts& aParts,
|
|
int32_t aRow) {
|
|
if (!mView) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// Note that we may be "over scrolled" at this point; that is the
|
|
// current mTopRowIndex may be larger than mRowCount - mPageLength.
|
|
// This can happen when items are removed for example. (bug 1085050)
|
|
|
|
int32_t maxTopRowIndex = std::max(0, mRowCount - mPageLength);
|
|
aRow = mozilla::clamped(aRow, 0, maxTopRowIndex);
|
|
if (aRow == mTopRowIndex) {
|
|
return NS_OK;
|
|
}
|
|
mTopRowIndex = aRow;
|
|
Invalidate();
|
|
PostScrollEvent();
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::ScrollHorzInternal(const ScrollParts& aParts,
|
|
int32_t aPosition) {
|
|
if (!mView || !aParts.mColumnsScrollFrame || !aParts.mHScrollbar)
|
|
return NS_OK;
|
|
|
|
if (aPosition == mHorzPosition) return NS_OK;
|
|
|
|
if (aPosition < 0 || aPosition > mHorzWidth) return NS_OK;
|
|
|
|
nsRect bounds = aParts.mColumnsFrame->GetRect();
|
|
if (aPosition > (mHorzWidth - bounds.width))
|
|
aPosition = mHorzWidth - bounds.width;
|
|
|
|
mHorzPosition = aPosition;
|
|
|
|
Invalidate();
|
|
|
|
// Update the column scroll view
|
|
AutoWeakFrame weakFrame(this);
|
|
aParts.mColumnsScrollFrame->ScrollTo(nsPoint(mHorzPosition, 0),
|
|
ScrollMode::Instant);
|
|
if (!weakFrame.IsAlive()) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// And fire off an event about it all
|
|
PostScrollEvent();
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsTreeBodyFrame::ScrollByPage(nsScrollbarFrame* aScrollbar,
|
|
int32_t aDirection,
|
|
ScrollSnapFlags aSnapFlags) {
|
|
// CSS Scroll Snapping is not enabled for XUL, aSnap is ignored
|
|
MOZ_ASSERT(aScrollbar != nullptr);
|
|
ScrollByPages(aDirection);
|
|
}
|
|
|
|
void nsTreeBodyFrame::ScrollByWhole(nsScrollbarFrame* aScrollbar,
|
|
int32_t aDirection,
|
|
ScrollSnapFlags aSnapFlags) {
|
|
// CSS Scroll Snapping is not enabled for XUL, aSnap is ignored
|
|
MOZ_ASSERT(aScrollbar != nullptr);
|
|
int32_t newIndex = aDirection < 0 ? 0 : mTopRowIndex;
|
|
ScrollToRow(newIndex);
|
|
}
|
|
|
|
void nsTreeBodyFrame::ScrollByLine(nsScrollbarFrame* aScrollbar,
|
|
int32_t aDirection,
|
|
ScrollSnapFlags aSnapFlags) {
|
|
// CSS Scroll Snapping is not enabled for XUL, aSnap is ignored
|
|
MOZ_ASSERT(aScrollbar != nullptr);
|
|
ScrollByLines(aDirection);
|
|
}
|
|
|
|
void nsTreeBodyFrame::ScrollByUnit(
|
|
nsScrollbarFrame* aScrollbar, ScrollMode aMode, int32_t aDirection,
|
|
ScrollUnit aUnit, ScrollSnapFlags aSnapFlags /* = Disabled */) {
|
|
MOZ_ASSERT_UNREACHABLE("Can't get here, we pass false to MoveToNewPosition");
|
|
}
|
|
|
|
void nsTreeBodyFrame::RepeatButtonScroll(nsScrollbarFrame* aScrollbar) {
|
|
ScrollParts parts = GetScrollParts();
|
|
int32_t increment = aScrollbar->GetIncrement();
|
|
int32_t direction = 0;
|
|
if (increment < 0) {
|
|
direction = -1;
|
|
} else if (increment > 0) {
|
|
direction = 1;
|
|
}
|
|
bool isHorizontal = aScrollbar->IsHorizontal();
|
|
|
|
AutoWeakFrame weakFrame(this);
|
|
if (isHorizontal) {
|
|
int32_t curpos = aScrollbar->MoveToNewPosition(
|
|
nsScrollbarFrame::ImplementsScrollByUnit::No);
|
|
if (weakFrame.IsAlive()) {
|
|
ScrollHorzInternal(parts, curpos);
|
|
}
|
|
} else {
|
|
ScrollToRowInternal(parts, mTopRowIndex + direction);
|
|
}
|
|
|
|
if (weakFrame.IsAlive() && mScrollbarActivity) {
|
|
mScrollbarActivity->ActivityOccurred();
|
|
}
|
|
if (weakFrame.IsAlive()) {
|
|
UpdateScrollbars(parts);
|
|
}
|
|
}
|
|
|
|
void nsTreeBodyFrame::ThumbMoved(nsScrollbarFrame* aScrollbar, nscoord aOldPos,
|
|
nscoord aNewPos) {
|
|
ScrollParts parts = GetScrollParts();
|
|
|
|
if (aOldPos == aNewPos) return;
|
|
|
|
AutoWeakFrame weakFrame(this);
|
|
|
|
// Vertical Scrollbar
|
|
if (parts.mVScrollbar == aScrollbar) {
|
|
nscoord rh = nsPresContext::AppUnitsToIntCSSPixels(mRowHeight);
|
|
nscoord newIndex = nsPresContext::AppUnitsToIntCSSPixels(aNewPos);
|
|
nscoord newrow = (rh > 0) ? (newIndex / rh) : 0;
|
|
ScrollInternal(parts, newrow);
|
|
// Horizontal Scrollbar
|
|
} else if (parts.mHScrollbar == aScrollbar) {
|
|
int32_t newIndex = nsPresContext::AppUnitsToIntCSSPixels(aNewPos);
|
|
ScrollHorzInternal(parts, newIndex);
|
|
}
|
|
if (weakFrame.IsAlive()) {
|
|
UpdateScrollbars(parts);
|
|
}
|
|
}
|
|
|
|
// The style cache.
|
|
ComputedStyle* nsTreeBodyFrame::GetPseudoComputedStyle(
|
|
nsCSSAnonBoxPseudoStaticAtom* aPseudoElement) {
|
|
return mStyleCache.GetComputedStyle(PresContext(), mContent, mComputedStyle,
|
|
aPseudoElement, mScratchArray);
|
|
}
|
|
|
|
XULTreeElement* nsTreeBodyFrame::GetBaseElement() {
|
|
if (!mTree) {
|
|
nsIFrame* parent = GetParent();
|
|
while (parent) {
|
|
nsIContent* content = parent->GetContent();
|
|
if (content && content->IsXULElement(nsGkAtoms::tree)) {
|
|
mTree = XULTreeElement::FromNodeOrNull(content->AsElement());
|
|
break;
|
|
}
|
|
|
|
parent = parent->GetInFlowParent();
|
|
}
|
|
}
|
|
|
|
return mTree;
|
|
}
|
|
|
|
nsresult nsTreeBodyFrame::ClearStyleAndImageCaches() {
|
|
mStyleCache.Clear();
|
|
CancelImageRequests();
|
|
mImageCache.Clear();
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsTreeBodyFrame::RemoveImageCacheEntry(int32_t aRowIndex,
|
|
nsTreeColumn* aCol) {
|
|
nsAutoString imageSrc;
|
|
nsCOMPtr<nsITreeView> view = GetExistingView();
|
|
if (!view || NS_FAILED(view->GetImageSrc(aRowIndex, aCol, imageSrc))) {
|
|
return;
|
|
}
|
|
nsTreeImageCacheEntry entry;
|
|
if (!mImageCache.Get(imageSrc, &entry)) {
|
|
return;
|
|
}
|
|
nsLayoutUtils::DeregisterImageRequest(PresContext(), entry.request, nullptr);
|
|
entry.request->UnlockImage();
|
|
entry.request->CancelAndForgetObserver(NS_BINDING_ABORTED);
|
|
mImageCache.Remove(imageSrc);
|
|
}
|
|
|
|
/* virtual */
|
|
void nsTreeBodyFrame::DidSetComputedStyle(ComputedStyle* aOldComputedStyle) {
|
|
SimpleXULLeafFrame::DidSetComputedStyle(aOldComputedStyle);
|
|
|
|
// Clear the style cache; the pointers are no longer even valid
|
|
mStyleCache.Clear();
|
|
// XXX The following is hacky, but it's not incorrect,
|
|
// and appears to fix a few bugs with style changes, like text zoom and
|
|
// dpi changes
|
|
mIndentation = GetIndentation();
|
|
mRowHeight = GetRowHeight();
|
|
}
|
|
|
|
bool nsTreeBodyFrame::OffsetForHorzScroll(nsRect& rect, bool clip) {
|
|
rect.x -= mHorzPosition;
|
|
|
|
// Scrolled out before
|
|
if (rect.XMost() <= mInnerBox.x) return false;
|
|
|
|
// Scrolled out after
|
|
if (rect.x > mInnerBox.XMost()) return false;
|
|
|
|
if (clip) {
|
|
nscoord leftEdge = std::max(rect.x, mInnerBox.x);
|
|
nscoord rightEdge = std::min(rect.XMost(), mInnerBox.XMost());
|
|
rect.x = leftEdge;
|
|
rect.width = rightEdge - leftEdge;
|
|
|
|
// Should have returned false above
|
|
NS_ASSERTION(rect.width >= 0, "horz scroll code out of sync");
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool nsTreeBodyFrame::CanAutoScroll(int32_t aRowIndex) {
|
|
// Check first for partially visible last row.
|
|
if (aRowIndex == mRowCount - 1) {
|
|
nscoord y = mInnerBox.y + (aRowIndex - mTopRowIndex) * mRowHeight;
|
|
if (y < mInnerBox.height && y + mRowHeight > mInnerBox.height) return true;
|
|
}
|
|
|
|
if (aRowIndex > 0 && aRowIndex < mRowCount - 1) return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
// Given a dom event, figure out which row in the tree the mouse is over,
|
|
// if we should drop before/after/on that row or we should auto-scroll.
|
|
// Doesn't query the content about if the drag is allowable, that's done
|
|
// elsewhere.
|
|
//
|
|
// For containers, we break up the vertical space of the row as follows: if in
|
|
// the topmost 25%, the drop is _before_ the row the mouse is over; if in the
|
|
// last 25%, _after_; in the middle 50%, we consider it a drop _on_ the
|
|
// container.
|
|
//
|
|
// For non-containers, if the mouse is in the top 50% of the row, the drop is
|
|
// _before_ and the bottom 50% _after_
|
|
void nsTreeBodyFrame::ComputeDropPosition(WidgetGUIEvent* aEvent, int32_t* aRow,
|
|
int16_t* aOrient,
|
|
int16_t* aScrollLines) {
|
|
*aOrient = -1;
|
|
*aScrollLines = 0;
|
|
|
|
// Convert the event's point to our coordinates. We want it in
|
|
// the coordinates of our inner box's coordinates.
|
|
nsPoint pt =
|
|
nsLayoutUtils::GetEventCoordinatesRelativeTo(aEvent, RelativeTo{this});
|
|
int32_t xTwips = pt.x - mInnerBox.x;
|
|
int32_t yTwips = pt.y - mInnerBox.y;
|
|
|
|
nsCOMPtr<nsITreeView> view = GetExistingView();
|
|
*aRow = GetRowAtInternal(xTwips, yTwips);
|
|
if (*aRow >= 0) {
|
|
// Compute the top/bottom of the row in question.
|
|
int32_t yOffset = yTwips - mRowHeight * (*aRow - mTopRowIndex);
|
|
|
|
bool isContainer = false;
|
|
view->IsContainer(*aRow, &isContainer);
|
|
if (isContainer) {
|
|
// for a container, use a 25%/50%/25% breakdown
|
|
if (yOffset < mRowHeight / 4)
|
|
*aOrient = nsITreeView::DROP_BEFORE;
|
|
else if (yOffset > mRowHeight - (mRowHeight / 4))
|
|
*aOrient = nsITreeView::DROP_AFTER;
|
|
else
|
|
*aOrient = nsITreeView::DROP_ON;
|
|
} else {
|
|
// for a non-container use a 50%/50% breakdown
|
|
if (yOffset < mRowHeight / 2)
|
|
*aOrient = nsITreeView::DROP_BEFORE;
|
|
else
|
|
*aOrient = nsITreeView::DROP_AFTER;
|
|
}
|
|
}
|
|
|
|
if (CanAutoScroll(*aRow)) {
|
|
// Get the max value from the look and feel service.
|
|
int32_t scrollLinesMax =
|
|
LookAndFeel::GetInt(LookAndFeel::IntID::TreeScrollLinesMax, 0);
|
|
scrollLinesMax--;
|
|
if (scrollLinesMax < 0) scrollLinesMax = 0;
|
|
|
|
// Determine if we're w/in a margin of the top/bottom of the tree during a
|
|
// drag. This will ultimately cause us to scroll, but that's done elsewhere.
|
|
nscoord height = (3 * mRowHeight) / 4;
|
|
if (yTwips < height) {
|
|
// scroll up
|
|
*aScrollLines =
|
|
NSToIntRound(-scrollLinesMax * (1 - (float)yTwips / height) - 1);
|
|
} else if (yTwips > mRect.height - height) {
|
|
// scroll down
|
|
*aScrollLines = NSToIntRound(
|
|
scrollLinesMax * (1 - (float)(mRect.height - yTwips) / height) + 1);
|
|
}
|
|
}
|
|
} // ComputeDropPosition
|
|
|
|
void nsTreeBodyFrame::OpenCallback(nsITimer* aTimer, void* aClosure) {
|
|
auto* self = static_cast<nsTreeBodyFrame*>(aClosure);
|
|
if (!self) {
|
|
return;
|
|
}
|
|
|
|
aTimer->Cancel();
|
|
self->mSlots->mTimer = nullptr;
|
|
|
|
nsCOMPtr<nsITreeView> view = self->GetExistingView();
|
|
if (self->mSlots->mDropRow >= 0) {
|
|
self->mSlots->mArray.AppendElement(self->mSlots->mDropRow);
|
|
view->ToggleOpenState(self->mSlots->mDropRow);
|
|
}
|
|
}
|
|
|
|
void nsTreeBodyFrame::CloseCallback(nsITimer* aTimer, void* aClosure) {
|
|
auto* self = static_cast<nsTreeBodyFrame*>(aClosure);
|
|
if (!self) {
|
|
return;
|
|
}
|
|
|
|
aTimer->Cancel();
|
|
self->mSlots->mTimer = nullptr;
|
|
|
|
nsCOMPtr<nsITreeView> view = self->GetExistingView();
|
|
auto array = std::move(self->mSlots->mArray);
|
|
if (!view) {
|
|
return;
|
|
}
|
|
for (auto elem : Reversed(array)) {
|
|
view->ToggleOpenState(elem);
|
|
}
|
|
}
|
|
|
|
void nsTreeBodyFrame::LazyScrollCallback(nsITimer* aTimer, void* aClosure) {
|
|
nsTreeBodyFrame* self = static_cast<nsTreeBodyFrame*>(aClosure);
|
|
if (self) {
|
|
aTimer->Cancel();
|
|
self->mSlots->mTimer = nullptr;
|
|
|
|
if (self->mView) {
|
|
// Set a new timer to scroll the tree repeatedly.
|
|
self->CreateTimer(LookAndFeel::IntID::TreeScrollDelay, ScrollCallback,
|
|
nsITimer::TYPE_REPEATING_SLACK,
|
|
getter_AddRefs(self->mSlots->mTimer),
|
|
"nsTreeBodyFrame::ScrollCallback");
|
|
self->ScrollByLines(self->mSlots->mScrollLines);
|
|
// ScrollByLines may have deleted |self|.
|
|
}
|
|
}
|
|
}
|
|
|
|
void nsTreeBodyFrame::ScrollCallback(nsITimer* aTimer, void* aClosure) {
|
|
nsTreeBodyFrame* self = static_cast<nsTreeBodyFrame*>(aClosure);
|
|
if (self) {
|
|
// Don't scroll if we are already at the top or bottom of the view.
|
|
if (self->mView && self->CanAutoScroll(self->mSlots->mDropRow)) {
|
|
self->ScrollByLines(self->mSlots->mScrollLines);
|
|
} else {
|
|
aTimer->Cancel();
|
|
self->mSlots->mTimer = nullptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
// TODO: Convert this to MOZ_CAN_RUN_SCRIPT (bug 1415230, bug 1535398)
|
|
MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHODIMP nsTreeBodyFrame::ScrollEvent::Run() {
|
|
if (mInner) {
|
|
mInner->FireScrollEvent();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsTreeBodyFrame::FireScrollEvent() {
|
|
mScrollEvent.Forget();
|
|
WidgetGUIEvent event(true, eScroll, nullptr);
|
|
// scroll events fired at elements don't bubble
|
|
event.mFlags.mBubbles = false;
|
|
RefPtr<nsIContent> content = GetContent();
|
|
RefPtr<nsPresContext> presContext = PresContext();
|
|
EventDispatcher::Dispatch(content, presContext, &event);
|
|
}
|
|
|
|
void nsTreeBodyFrame::PostScrollEvent() {
|
|
if (mScrollEvent.IsPending()) return;
|
|
|
|
RefPtr<ScrollEvent> event = new ScrollEvent(this);
|
|
nsresult rv = mContent->OwnerDoc()->Dispatch(do_AddRef(event));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("failed to dispatch ScrollEvent");
|
|
} else {
|
|
mScrollEvent = std::move(event);
|
|
}
|
|
}
|
|
|
|
void nsTreeBodyFrame::ScrollbarActivityStarted() const {
|
|
if (mScrollbarActivity) {
|
|
mScrollbarActivity->ActivityStarted();
|
|
}
|
|
}
|
|
|
|
void nsTreeBodyFrame::ScrollbarActivityStopped() const {
|
|
if (mScrollbarActivity) {
|
|
mScrollbarActivity->ActivityStopped();
|
|
}
|
|
}
|
|
|
|
void nsTreeBodyFrame::DetachImageListeners() { mCreatedListeners.Clear(); }
|
|
|
|
void nsTreeBodyFrame::RemoveTreeImageListener(nsTreeImageListener* aListener) {
|
|
if (aListener) {
|
|
mCreatedListeners.Remove(aListener);
|
|
}
|
|
}
|
|
|
|
#ifdef ACCESSIBILITY
|
|
static void InitCustomEvent(CustomEvent* aEvent, const nsAString& aType,
|
|
nsIWritablePropertyBag2* aDetail) {
|
|
AutoJSAPI jsapi;
|
|
if (!jsapi.Init(aEvent->GetParentObject())) {
|
|
return;
|
|
}
|
|
|
|
JSContext* cx = jsapi.cx();
|
|
JS::Rooted<JS::Value> detail(cx);
|
|
if (!ToJSValue(cx, aDetail, &detail)) {
|
|
jsapi.ClearException();
|
|
return;
|
|
}
|
|
|
|
aEvent->InitCustomEvent(cx, aType, /* aCanBubble = */ true,
|
|
/* aCancelable = */ false, detail);
|
|
}
|
|
|
|
void nsTreeBodyFrame::FireRowCountChangedEvent(int32_t aIndex, int32_t aCount) {
|
|
RefPtr<XULTreeElement> tree(GetBaseElement());
|
|
if (!tree) return;
|
|
|
|
RefPtr<Document> doc = tree->OwnerDoc();
|
|
MOZ_ASSERT(doc);
|
|
|
|
RefPtr<Event> event =
|
|
doc->CreateEvent(u"customevent"_ns, CallerType::System, IgnoreErrors());
|
|
|
|
CustomEvent* treeEvent = event->AsCustomEvent();
|
|
if (!treeEvent) {
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIWritablePropertyBag2> propBag(
|
|
do_CreateInstance("@mozilla.org/hash-property-bag;1"));
|
|
if (!propBag) {
|
|
return;
|
|
}
|
|
|
|
// Set 'index' data - the row index rows are changed from.
|
|
propBag->SetPropertyAsInt32(u"index"_ns, aIndex);
|
|
|
|
// Set 'count' data - the number of changed rows.
|
|
propBag->SetPropertyAsInt32(u"count"_ns, aCount);
|
|
|
|
InitCustomEvent(treeEvent, u"TreeRowCountChanged"_ns, propBag);
|
|
|
|
event->SetTrusted(true);
|
|
|
|
RefPtr<AsyncEventDispatcher> asyncDispatcher =
|
|
new AsyncEventDispatcher(tree, event.forget());
|
|
asyncDispatcher->PostDOMEvent();
|
|
}
|
|
|
|
void nsTreeBodyFrame::FireInvalidateEvent(int32_t aStartRowIdx,
|
|
int32_t aEndRowIdx,
|
|
nsTreeColumn* aStartCol,
|
|
nsTreeColumn* aEndCol) {
|
|
RefPtr<XULTreeElement> tree(GetBaseElement());
|
|
if (!tree) return;
|
|
|
|
RefPtr<Document> doc = tree->OwnerDoc();
|
|
|
|
RefPtr<Event> event =
|
|
doc->CreateEvent(u"customevent"_ns, CallerType::System, IgnoreErrors());
|
|
|
|
CustomEvent* treeEvent = event->AsCustomEvent();
|
|
if (!treeEvent) {
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIWritablePropertyBag2> propBag(
|
|
do_CreateInstance("@mozilla.org/hash-property-bag;1"));
|
|
if (!propBag) {
|
|
return;
|
|
}
|
|
|
|
if (aStartRowIdx != -1 && aEndRowIdx != -1) {
|
|
// Set 'startrow' data - the start index of invalidated rows.
|
|
propBag->SetPropertyAsInt32(u"startrow"_ns, aStartRowIdx);
|
|
|
|
// Set 'endrow' data - the end index of invalidated rows.
|
|
propBag->SetPropertyAsInt32(u"endrow"_ns, aEndRowIdx);
|
|
}
|
|
|
|
if (aStartCol && aEndCol) {
|
|
// Set 'startcolumn' data - the start index of invalidated rows.
|
|
int32_t startColIdx = aStartCol->GetIndex();
|
|
|
|
propBag->SetPropertyAsInt32(u"startcolumn"_ns, startColIdx);
|
|
|
|
// Set 'endcolumn' data - the start index of invalidated rows.
|
|
int32_t endColIdx = aEndCol->GetIndex();
|
|
propBag->SetPropertyAsInt32(u"endcolumn"_ns, endColIdx);
|
|
}
|
|
|
|
InitCustomEvent(treeEvent, u"TreeInvalidated"_ns, propBag);
|
|
|
|
event->SetTrusted(true);
|
|
|
|
RefPtr<AsyncEventDispatcher> asyncDispatcher =
|
|
new AsyncEventDispatcher(tree, event.forget());
|
|
asyncDispatcher->PostDOMEvent();
|
|
}
|
|
#endif
|
|
|
|
class nsOverflowChecker : public Runnable {
|
|
public:
|
|
explicit nsOverflowChecker(nsTreeBodyFrame* aFrame)
|
|
: mozilla::Runnable("nsOverflowChecker"), mFrame(aFrame) {}
|
|
NS_IMETHOD Run() override {
|
|
if (mFrame.IsAlive()) {
|
|
nsTreeBodyFrame* tree = static_cast<nsTreeBodyFrame*>(mFrame.GetFrame());
|
|
nsTreeBodyFrame::ScrollParts parts = tree->GetScrollParts();
|
|
tree->CheckOverflow(parts);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
private:
|
|
WeakFrame mFrame;
|
|
};
|
|
|
|
bool nsTreeBodyFrame::FullScrollbarsUpdate(bool aNeedsFullInvalidation) {
|
|
ScrollParts parts = GetScrollParts();
|
|
AutoWeakFrame weakFrame(this);
|
|
AutoWeakFrame weakColumnsFrame(parts.mColumnsFrame);
|
|
UpdateScrollbars(parts);
|
|
NS_ENSURE_TRUE(weakFrame.IsAlive(), false);
|
|
if (aNeedsFullInvalidation) {
|
|
Invalidate();
|
|
}
|
|
InvalidateScrollbars(parts, weakColumnsFrame);
|
|
NS_ENSURE_TRUE(weakFrame.IsAlive(), false);
|
|
|
|
// Overflow checking dispatches synchronous events, which can cause infinite
|
|
// recursion during reflow. Do the first overflow check synchronously, but
|
|
// force any nested checks to round-trip through the event loop. See bug
|
|
// 905909.
|
|
RefPtr<nsOverflowChecker> checker = new nsOverflowChecker(this);
|
|
if (!mCheckingOverflow) {
|
|
nsContentUtils::AddScriptRunner(checker);
|
|
} else {
|
|
mContent->OwnerDoc()->Dispatch(checker.forget());
|
|
}
|
|
return weakFrame.IsAlive();
|
|
}
|
|
|
|
void nsTreeBodyFrame::OnImageIsAnimated(imgIRequest* aRequest) {
|
|
nsLayoutUtils::RegisterImageRequest(PresContext(), aRequest, nullptr);
|
|
}
|