forked from mirrors/gecko-dev
a4b19fcd61
--HG-- rename : browser/components/nsBrowserContentHandler.js => browser/components/BrowserContentHandler.jsm
4170 lines
145 KiB
C++
4170 lines
145 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* structs that contain the data provided by ComputedStyle, the
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* internal API for computed style data for an element
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*/
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#include "nsStyleStruct.h"
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#include "nsStyleStructInlines.h"
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#include "nsStyleConsts.h"
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#include "nsString.h"
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#include "nsPresContext.h"
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#include "nsIAppShellService.h"
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#include "nsIWidget.h"
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#include "nsCRTGlue.h"
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#include "nsCSSProps.h"
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#include "nsDeviceContext.h"
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#include "nsStyleUtil.h"
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#include "nsCOMPtr.h"
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#include "nsBidiUtils.h"
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#include "nsLayoutUtils.h"
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#include "imgIRequest.h"
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#include "imgIContainer.h"
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#include "CounterStyleManager.h"
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#include "mozilla/dom/AnimationEffectBinding.h" // for PlaybackDirection
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#include "mozilla/dom/DocGroup.h"
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#include "mozilla/dom/ImageTracker.h"
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#include "mozilla/CORSMode.h"
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#include "mozilla/ClearOnShutdown.h"
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#include "mozilla/Likely.h"
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#include "nsIURI.h"
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#include "mozilla/dom/Document.h"
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#include <algorithm>
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#include "ImageLoader.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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/* static */ const int32_t nsStyleGridLine::kMinLine;
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/* static */ const int32_t nsStyleGridLine::kMaxLine;
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static const nscoord kMediumBorderWidth = nsPresContext::CSSPixelsToAppUnits(3);
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// We set the size limit of style structs to 504 bytes so that when they
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// are allocated by Servo side with Arc, the total size doesn't exceed
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// 512 bytes, which minimizes allocator slop.
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static constexpr size_t kStyleStructSizeLimit = 504;
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#define STYLE_STRUCT(name_) \
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static_assert(sizeof(nsStyle##name_) <= kStyleStructSizeLimit, \
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"nsStyle" #name_ " became larger than the size limit");
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#include "nsStyleStructList.h"
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#undef STYLE_STRUCT
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static bool DefinitelyEqualURIs(const css::URLValue* aURI1,
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const css::URLValue* aURI2) {
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return aURI1 == aURI2 ||
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(aURI1 && aURI2 && aURI1->DefinitelyEqualURIs(*aURI2));
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}
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static bool DefinitelyEqualURIsAndPrincipal(const css::URLValue* aURI1,
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const css::URLValue* aURI2) {
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return aURI1 == aURI2 ||
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(aURI1 && aURI2 && aURI1->DefinitelyEqualURIsAndPrincipal(*aURI2));
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}
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static bool DefinitelyEqualImages(const nsStyleImageRequest* aRequest1,
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const nsStyleImageRequest* aRequest2) {
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if (aRequest1 == aRequest2) {
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return true;
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}
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if (!aRequest1 || !aRequest2) {
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return false;
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}
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return aRequest1->DefinitelyEquals(*aRequest2);
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}
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static bool AreShadowArraysEqual(nsCSSShadowArray* lhs, nsCSSShadowArray* rhs);
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// --------------------
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// nsStyleFont
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//
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nsStyleFont::nsStyleFont(const nsStyleFont& aSrc)
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: mFont(aSrc.mFont),
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mSize(aSrc.mSize),
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mFontSizeFactor(aSrc.mFontSizeFactor),
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mFontSizeOffset(aSrc.mFontSizeOffset),
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mFontSizeKeyword(aSrc.mFontSizeKeyword),
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mGenericID(aSrc.mGenericID),
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mScriptLevel(aSrc.mScriptLevel),
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mMathVariant(aSrc.mMathVariant),
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mMathDisplay(aSrc.mMathDisplay),
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mMinFontSizeRatio(aSrc.mMinFontSizeRatio),
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mExplicitLanguage(aSrc.mExplicitLanguage),
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mAllowZoom(aSrc.mAllowZoom),
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mScriptUnconstrainedSize(aSrc.mScriptUnconstrainedSize),
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mScriptMinSize(aSrc.mScriptMinSize),
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mScriptSizeMultiplier(aSrc.mScriptSizeMultiplier),
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mLanguage(aSrc.mLanguage) {
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MOZ_COUNT_CTOR(nsStyleFont);
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}
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nsStyleFont::nsStyleFont(const Document& aDocument)
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: mFont(*aDocument.GetFontPrefsForLang(nullptr)->GetDefaultFont(
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kPresContext_DefaultVariableFont_ID)),
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mSize(ZoomText(aDocument, mFont.size)),
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mFontSizeFactor(1.0),
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mFontSizeOffset(0),
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mFontSizeKeyword(NS_STYLE_FONT_SIZE_MEDIUM),
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mGenericID(kGenericFont_NONE),
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mScriptLevel(0),
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mMathVariant(NS_MATHML_MATHVARIANT_NONE),
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mMathDisplay(NS_MATHML_DISPLAYSTYLE_INLINE),
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mMinFontSizeRatio(100), // 100%
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mExplicitLanguage(false),
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mAllowZoom(true),
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mScriptUnconstrainedSize(mSize),
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mScriptMinSize(nsPresContext::CSSTwipsToAppUnits(
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NS_POINTS_TO_TWIPS(NS_MATHML_DEFAULT_SCRIPT_MIN_SIZE_PT))),
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mScriptSizeMultiplier(NS_MATHML_DEFAULT_SCRIPT_SIZE_MULTIPLIER),
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mLanguage(aDocument.GetLanguageForStyle()) {
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MOZ_COUNT_CTOR(nsStyleFont);
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MOZ_ASSERT(NS_IsMainThread());
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mFont.size = mSize;
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if (!nsContentUtils::IsChromeDoc(&aDocument)) {
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nscoord minimumFontSize =
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aDocument.GetFontPrefsForLang(mLanguage)->mMinimumFontSize;
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mFont.size = std::max(mSize, minimumFontSize);
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}
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}
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nsChangeHint nsStyleFont::CalcDifference(const nsStyleFont& aNewData) const {
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MOZ_ASSERT(mAllowZoom == aNewData.mAllowZoom,
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"expected mAllowZoom to be the same on both nsStyleFonts");
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if (mSize != aNewData.mSize || mLanguage != aNewData.mLanguage ||
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mExplicitLanguage != aNewData.mExplicitLanguage ||
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mMathVariant != aNewData.mMathVariant ||
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mMathDisplay != aNewData.mMathDisplay ||
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mMinFontSizeRatio != aNewData.mMinFontSizeRatio) {
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return NS_STYLE_HINT_REFLOW;
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}
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switch (mFont.CalcDifference(aNewData.mFont)) {
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case nsFont::MaxDifference::eLayoutAffecting:
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return NS_STYLE_HINT_REFLOW;
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case nsFont::MaxDifference::eVisual:
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return NS_STYLE_HINT_VISUAL;
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case nsFont::MaxDifference::eNone:
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break;
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}
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// XXX Should any of these cause a non-nsChangeHint_NeutralChange change?
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if (mGenericID != aNewData.mGenericID ||
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mScriptLevel != aNewData.mScriptLevel ||
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mScriptUnconstrainedSize != aNewData.mScriptUnconstrainedSize ||
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mScriptMinSize != aNewData.mScriptMinSize ||
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mScriptSizeMultiplier != aNewData.mScriptSizeMultiplier) {
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return nsChangeHint_NeutralChange;
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}
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return nsChangeHint(0);
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}
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nscoord nsStyleFont::ZoomText(const Document& aDocument, nscoord aSize) {
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float textZoom = 1.0;
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if (auto* pc = aDocument.GetPresContext()) {
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textZoom = pc->EffectiveTextZoom();
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}
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// aSize can be negative (e.g.: calc(-1px)) so we can't assert that here.
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// The caller is expected deal with that.
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return NSToCoordTruncClamped(float(aSize) * textZoom);
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}
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template <typename T>
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static StyleRect<T> StyleRectWithAllSides(const T& aSide) {
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return {aSide, aSide, aSide, aSide};
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}
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nsStyleMargin::nsStyleMargin(const Document& aDocument)
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: mMargin(StyleRectWithAllSides(
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LengthPercentageOrAuto::LengthPercentage(LengthPercentage::Zero()))) {
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MOZ_COUNT_CTOR(nsStyleMargin);
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}
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nsStyleMargin::nsStyleMargin(const nsStyleMargin& aSrc)
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: mMargin(aSrc.mMargin) {
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MOZ_COUNT_CTOR(nsStyleMargin);
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}
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nsChangeHint nsStyleMargin::CalcDifference(
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const nsStyleMargin& aNewData) const {
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if (mMargin == aNewData.mMargin) {
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return nsChangeHint(0);
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}
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// Margin differences can't affect descendant intrinsic sizes and
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// don't need to force children to reflow.
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return nsChangeHint_NeedReflow | nsChangeHint_ReflowChangesSizeOrPosition |
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nsChangeHint_ClearAncestorIntrinsics;
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}
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nsStylePadding::nsStylePadding(const Document& aDocument)
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: mPadding(StyleRectWithAllSides(LengthPercentage::Zero())) {
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MOZ_COUNT_CTOR(nsStylePadding);
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}
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nsStylePadding::nsStylePadding(const nsStylePadding& aSrc)
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: mPadding(aSrc.mPadding) {
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MOZ_COUNT_CTOR(nsStylePadding);
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}
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nsChangeHint nsStylePadding::CalcDifference(
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const nsStylePadding& aNewData) const {
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if (mPadding == aNewData.mPadding) {
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return nsChangeHint(0);
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}
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// Padding differences can't affect descendant intrinsic sizes, but do need
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// to force children to reflow so that we can reposition them, since their
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// offsets are from our frame bounds but our content rect's position within
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// those bounds is moving.
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// FIXME: It would be good to return a weaker hint here that doesn't
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// force reflow of all descendants, but the hint would need to force
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// reflow of the frame's children (see how
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// ReflowInput::InitResizeFlags initializes the inline-resize flag).
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return NS_STYLE_HINT_REFLOW & ~nsChangeHint_ClearDescendantIntrinsics;
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}
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static nscoord TwipsPerPixel(const Document& aDocument) {
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auto* pc = aDocument.GetPresContext();
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return pc ? pc->AppUnitsPerDevPixel() : mozilla::AppUnitsPerCSSPixel();
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}
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nsStyleBorder::nsStyleBorder(const Document& aDocument)
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: mBorderImageFill(NS_STYLE_BORDER_IMAGE_SLICE_NOFILL),
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mBorderImageRepeatH(StyleBorderImageRepeat::Stretch),
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mBorderImageRepeatV(StyleBorderImageRepeat::Stretch),
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mFloatEdge(StyleFloatEdge::ContentBox),
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mBoxDecorationBreak(StyleBoxDecorationBreak::Slice),
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mBorderTopColor(StyleComplexColor::CurrentColor()),
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mBorderRightColor(StyleComplexColor::CurrentColor()),
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mBorderBottomColor(StyleComplexColor::CurrentColor()),
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mBorderLeftColor(StyleComplexColor::CurrentColor()),
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mComputedBorder(0, 0, 0, 0),
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mTwipsPerPixel(TwipsPerPixel(aDocument)) {
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MOZ_COUNT_CTOR(nsStyleBorder);
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NS_FOR_CSS_HALF_CORNERS(corner) {
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mBorderRadius.Set(corner, nsStyleCoord(0, nsStyleCoord::CoordConstructor));
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}
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nscoord medium = kMediumBorderWidth;
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NS_FOR_CSS_SIDES(side) {
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mBorderImageSlice.Set(side, nsStyleCoord(1.0f, eStyleUnit_Percent));
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mBorderImageWidth.Set(side, nsStyleCoord(1.0f, eStyleUnit_Factor));
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mBorderImageOutset.Set(side, nsStyleCoord(0.0f, eStyleUnit_Factor));
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mBorder.Side(side) = medium;
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mBorderStyle[side] = StyleBorderStyle::None;
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}
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}
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nsStyleBorder::nsStyleBorder(const nsStyleBorder& aSrc)
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: mBorderRadius(aSrc.mBorderRadius),
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mBorderImageSource(aSrc.mBorderImageSource),
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mBorderImageSlice(aSrc.mBorderImageSlice),
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mBorderImageWidth(aSrc.mBorderImageWidth),
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mBorderImageOutset(aSrc.mBorderImageOutset),
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mBorderImageFill(aSrc.mBorderImageFill),
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mBorderImageRepeatH(aSrc.mBorderImageRepeatH),
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mBorderImageRepeatV(aSrc.mBorderImageRepeatV),
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mFloatEdge(aSrc.mFloatEdge),
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mBoxDecorationBreak(aSrc.mBoxDecorationBreak),
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mBorderTopColor(aSrc.mBorderTopColor),
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mBorderRightColor(aSrc.mBorderRightColor),
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mBorderBottomColor(aSrc.mBorderBottomColor),
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mBorderLeftColor(aSrc.mBorderLeftColor),
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mComputedBorder(aSrc.mComputedBorder),
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mBorder(aSrc.mBorder),
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mTwipsPerPixel(aSrc.mTwipsPerPixel) {
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MOZ_COUNT_CTOR(nsStyleBorder);
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NS_FOR_CSS_SIDES(side) { mBorderStyle[side] = aSrc.mBorderStyle[side]; }
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}
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nsStyleBorder::~nsStyleBorder() { MOZ_COUNT_DTOR(nsStyleBorder); }
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void nsStyleBorder::TriggerImageLoads(Document& aDocument,
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const nsStyleBorder* aOldStyle) {
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MOZ_ASSERT(NS_IsMainThread());
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mBorderImageSource.ResolveImage(
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aDocument, aOldStyle ? &aOldStyle->mBorderImageSource : nullptr);
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}
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nsMargin nsStyleBorder::GetImageOutset() const {
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// We don't check whether there is a border-image (which is OK since
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// the initial values yields 0 outset) so that we don't have to
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// reflow to update overflow areas when an image loads.
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nsMargin outset;
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NS_FOR_CSS_SIDES(s) {
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nsStyleCoord coord = mBorderImageOutset.Get(s);
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nscoord value;
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switch (coord.GetUnit()) {
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case eStyleUnit_Coord:
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value = coord.GetCoordValue();
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break;
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case eStyleUnit_Factor:
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value = coord.GetFactorValue() * mComputedBorder.Side(s);
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break;
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default:
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MOZ_ASSERT_UNREACHABLE("unexpected CSS unit for image outset");
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value = 0;
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break;
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}
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outset.Side(s) = value;
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}
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return outset;
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}
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nsChangeHint nsStyleBorder::CalcDifference(
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const nsStyleBorder& aNewData) const {
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// FIXME: XXXbz: As in nsStylePadding::CalcDifference, many of these
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// differences should not need to clear descendant intrinsics.
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// FIXME: It would be good to return a weaker hint for the
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// GetComputedBorder() differences (and perhaps others) that doesn't
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// force reflow of all descendants, but the hint would need to force
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// reflow of the frame's children (see how
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// ReflowInput::InitResizeFlags initializes the inline-resize flag).
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if (mTwipsPerPixel != aNewData.mTwipsPerPixel ||
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GetComputedBorder() != aNewData.GetComputedBorder() ||
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mFloatEdge != aNewData.mFloatEdge ||
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mBorderImageOutset != aNewData.mBorderImageOutset ||
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mBoxDecorationBreak != aNewData.mBoxDecorationBreak) {
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return NS_STYLE_HINT_REFLOW;
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}
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NS_FOR_CSS_SIDES(ix) {
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// See the explanation in nsChangeHint.h of
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// nsChangeHint_BorderStyleNoneChange .
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// Furthermore, even though we know *this* side is 0 width, just
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// assume a repaint hint for some other change rather than bother
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// tracking this result through the rest of the function.
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if (HasVisibleStyle(ix) != aNewData.HasVisibleStyle(ix)) {
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return nsChangeHint_RepaintFrame | nsChangeHint_BorderStyleNoneChange;
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}
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}
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// Note that mBorderStyle stores not only the border style but also
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// color-related flags. Given that we've already done an mComputedBorder
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// comparison, border-style differences can only lead to a repaint hint. So
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// it's OK to just compare the values directly -- if either the actual
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// style or the color flags differ we want to repaint.
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NS_FOR_CSS_SIDES(ix) {
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if (mBorderStyle[ix] != aNewData.mBorderStyle[ix] ||
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BorderColorFor(ix) != aNewData.BorderColorFor(ix)) {
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return nsChangeHint_RepaintFrame;
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}
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}
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if (mBorderRadius != aNewData.mBorderRadius) {
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return nsChangeHint_RepaintFrame;
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}
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// Loading status of the border image can be accessed in main thread only
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// while CalcDifference might be executed on a background thread. As a
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// result, we have to check mBorderImage* fields even before border image was
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// actually loaded.
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if (!mBorderImageSource.IsEmpty() || !aNewData.mBorderImageSource.IsEmpty()) {
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if (mBorderImageSource != aNewData.mBorderImageSource ||
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mBorderImageRepeatH != aNewData.mBorderImageRepeatH ||
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mBorderImageRepeatV != aNewData.mBorderImageRepeatV ||
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mBorderImageSlice != aNewData.mBorderImageSlice ||
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mBorderImageFill != aNewData.mBorderImageFill ||
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mBorderImageWidth != aNewData.mBorderImageWidth) {
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return nsChangeHint_RepaintFrame;
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}
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}
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// mBorder is the specified border value. Changes to this don't
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// need any change processing, since we operate on the computed
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// border values instead.
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if (mBorder != aNewData.mBorder) {
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return nsChangeHint_NeutralChange;
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}
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// mBorderImage* fields are checked only when border-image is not 'none'.
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if (mBorderImageSource != aNewData.mBorderImageSource ||
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mBorderImageRepeatH != aNewData.mBorderImageRepeatH ||
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mBorderImageRepeatV != aNewData.mBorderImageRepeatV ||
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mBorderImageSlice != aNewData.mBorderImageSlice ||
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mBorderImageFill != aNewData.mBorderImageFill ||
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mBorderImageWidth != aNewData.mBorderImageWidth) {
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return nsChangeHint_NeutralChange;
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}
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return nsChangeHint(0);
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}
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nsStyleOutline::nsStyleOutline(const Document& aDocument)
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: mOutlineWidth(kMediumBorderWidth),
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mOutlineOffset(0),
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mOutlineColor(StyleComplexColor::CurrentColor()),
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mOutlineStyle(StyleOutlineStyle::BorderStyle(StyleBorderStyle::None)),
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mActualOutlineWidth(0),
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mTwipsPerPixel(TwipsPerPixel(aDocument)) {
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MOZ_COUNT_CTOR(nsStyleOutline);
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// spacing values not inherited
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nsStyleCoord zero(0, nsStyleCoord::CoordConstructor);
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NS_FOR_CSS_HALF_CORNERS(corner) { mOutlineRadius.Set(corner, zero); }
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}
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nsStyleOutline::nsStyleOutline(const nsStyleOutline& aSrc)
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: mOutlineRadius(aSrc.mOutlineRadius),
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mOutlineWidth(aSrc.mOutlineWidth),
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mOutlineOffset(aSrc.mOutlineOffset),
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mOutlineColor(aSrc.mOutlineColor),
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mOutlineStyle(aSrc.mOutlineStyle),
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mActualOutlineWidth(aSrc.mActualOutlineWidth),
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mTwipsPerPixel(aSrc.mTwipsPerPixel) {
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MOZ_COUNT_CTOR(nsStyleOutline);
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}
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nsChangeHint nsStyleOutline::CalcDifference(
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const nsStyleOutline& aNewData) const {
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if (mActualOutlineWidth != aNewData.mActualOutlineWidth ||
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(mActualOutlineWidth > 0 && mOutlineOffset != aNewData.mOutlineOffset)) {
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return nsChangeHint_UpdateOverflow | nsChangeHint_SchedulePaint |
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nsChangeHint_RepaintFrame;
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}
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if (mOutlineStyle != aNewData.mOutlineStyle ||
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mOutlineColor != aNewData.mOutlineColor ||
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mOutlineRadius != aNewData.mOutlineRadius) {
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if (mActualOutlineWidth > 0) {
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return nsChangeHint_RepaintFrame;
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}
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return nsChangeHint_NeutralChange;
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}
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|
|
if (mOutlineWidth != aNewData.mOutlineWidth ||
|
|
mOutlineOffset != aNewData.mOutlineOffset ||
|
|
mTwipsPerPixel != aNewData.mTwipsPerPixel) {
|
|
return nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleList
|
|
//
|
|
nsStyleList::nsStyleList(const Document& aDocument)
|
|
: mListStylePosition(NS_STYLE_LIST_STYLE_POSITION_OUTSIDE) {
|
|
MOZ_COUNT_CTOR(nsStyleList);
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
mCounterStyle = nsGkAtoms::disc;
|
|
mQuotes = Servo_Quotes_GetInitialValue().Consume();
|
|
}
|
|
|
|
nsStyleList::~nsStyleList() { MOZ_COUNT_DTOR(nsStyleList); }
|
|
|
|
nsStyleList::nsStyleList(const nsStyleList& aSource)
|
|
: mListStylePosition(aSource.mListStylePosition),
|
|
mListStyleImage(aSource.mListStyleImage),
|
|
mCounterStyle(aSource.mCounterStyle),
|
|
mQuotes(aSource.mQuotes),
|
|
mImageRegion(aSource.mImageRegion) {
|
|
MOZ_COUNT_CTOR(nsStyleList);
|
|
}
|
|
|
|
void nsStyleList::TriggerImageLoads(Document& aDocument,
|
|
const nsStyleList* aOldStyle) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
if (mListStyleImage && !mListStyleImage->IsResolved()) {
|
|
mListStyleImage->Resolve(
|
|
aDocument, aOldStyle ? aOldStyle->mListStyleImage.get() : nullptr);
|
|
}
|
|
}
|
|
|
|
nsChangeHint nsStyleList::CalcDifference(
|
|
const nsStyleList& aNewData, const nsStyleDisplay& aOldDisplay) const {
|
|
// If the quotes implementation is ever going to change we might not need
|
|
// a framechange here and a reflow should be sufficient. See bug 35768.
|
|
if (mQuotes != aNewData.mQuotes &&
|
|
!Servo_Quotes_Equal(mQuotes.get(), aNewData.mQuotes.get())) {
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
// Only elements whose display value is list-item can be affected by
|
|
// list-style-position and list-style-type. If the old display struct
|
|
// doesn't exist, assume it isn't affected by display value at all,
|
|
// and thus these properties should not affect it either. This also
|
|
// relies on that when the display value changes from something else
|
|
// to list-item, that change itself would cause ReconstructFrame.
|
|
if (aOldDisplay.mDisplay == StyleDisplay::ListItem) {
|
|
if (mListStylePosition != aNewData.mListStylePosition) {
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
if (mCounterStyle != aNewData.mCounterStyle) {
|
|
return NS_STYLE_HINT_REFLOW;
|
|
}
|
|
} else if (mListStylePosition != aNewData.mListStylePosition ||
|
|
mCounterStyle != aNewData.mCounterStyle) {
|
|
hint = nsChangeHint_NeutralChange;
|
|
}
|
|
// list-style-image and -moz-image-region may affect some XUL elements
|
|
// regardless of display value, so we still need to check them.
|
|
if (!DefinitelyEqualImages(mListStyleImage, aNewData.mListStyleImage)) {
|
|
return NS_STYLE_HINT_REFLOW;
|
|
}
|
|
if (!mImageRegion.IsEqualInterior(aNewData.mImageRegion)) {
|
|
if (mImageRegion.width != aNewData.mImageRegion.width ||
|
|
mImageRegion.height != aNewData.mImageRegion.height) {
|
|
return NS_STYLE_HINT_REFLOW;
|
|
}
|
|
return NS_STYLE_HINT_VISUAL;
|
|
}
|
|
return hint;
|
|
}
|
|
|
|
already_AddRefed<nsIURI> nsStyleList::GetListStyleImageURI() const {
|
|
if (!mListStyleImage) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsCOMPtr<nsIURI> uri = mListStyleImage->GetImageURI();
|
|
return uri.forget();
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleXUL
|
|
//
|
|
nsStyleXUL::nsStyleXUL(const Document& aDocument)
|
|
: mBoxFlex(0.0f),
|
|
mBoxOrdinal(1),
|
|
mBoxAlign(StyleBoxAlign::Stretch),
|
|
mBoxDirection(StyleBoxDirection::Normal),
|
|
mBoxOrient(StyleBoxOrient::Horizontal),
|
|
mBoxPack(StyleBoxPack::Start),
|
|
mStackSizing(StyleStackSizing::StretchToFit) {
|
|
MOZ_COUNT_CTOR(nsStyleXUL);
|
|
}
|
|
|
|
nsStyleXUL::~nsStyleXUL() { MOZ_COUNT_DTOR(nsStyleXUL); }
|
|
|
|
nsStyleXUL::nsStyleXUL(const nsStyleXUL& aSource)
|
|
: mBoxFlex(aSource.mBoxFlex),
|
|
mBoxOrdinal(aSource.mBoxOrdinal),
|
|
mBoxAlign(aSource.mBoxAlign),
|
|
mBoxDirection(aSource.mBoxDirection),
|
|
mBoxOrient(aSource.mBoxOrient),
|
|
mBoxPack(aSource.mBoxPack),
|
|
mStackSizing(aSource.mStackSizing) {
|
|
MOZ_COUNT_CTOR(nsStyleXUL);
|
|
}
|
|
|
|
nsChangeHint nsStyleXUL::CalcDifference(const nsStyleXUL& aNewData) const {
|
|
if (mBoxAlign == aNewData.mBoxAlign &&
|
|
mBoxDirection == aNewData.mBoxDirection &&
|
|
mBoxFlex == aNewData.mBoxFlex && mBoxOrient == aNewData.mBoxOrient &&
|
|
mBoxPack == aNewData.mBoxPack && mBoxOrdinal == aNewData.mBoxOrdinal &&
|
|
mStackSizing == aNewData.mStackSizing) {
|
|
return nsChangeHint(0);
|
|
}
|
|
if (mBoxOrdinal != aNewData.mBoxOrdinal) {
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
return NS_STYLE_HINT_REFLOW;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleColumn
|
|
//
|
|
/* static */ const uint32_t nsStyleColumn::kMaxColumnCount;
|
|
/* static */ const uint32_t nsStyleColumn::kColumnCountAuto;
|
|
|
|
nsStyleColumn::nsStyleColumn(const Document& aDocument)
|
|
: mColumnWidth(eStyleUnit_Auto),
|
|
mColumnRuleColor(StyleComplexColor::CurrentColor()),
|
|
mColumnRuleStyle(StyleBorderStyle::None),
|
|
mColumnRuleWidth(kMediumBorderWidth),
|
|
mTwipsPerPixel(TwipsPerPixel(aDocument)) {
|
|
MOZ_COUNT_CTOR(nsStyleColumn);
|
|
}
|
|
|
|
nsStyleColumn::~nsStyleColumn() { MOZ_COUNT_DTOR(nsStyleColumn); }
|
|
|
|
nsStyleColumn::nsStyleColumn(const nsStyleColumn& aSource)
|
|
: mColumnCount(aSource.mColumnCount),
|
|
mColumnWidth(aSource.mColumnWidth),
|
|
mColumnRuleColor(aSource.mColumnRuleColor),
|
|
mColumnRuleStyle(aSource.mColumnRuleStyle),
|
|
mColumnFill(aSource.mColumnFill),
|
|
mColumnSpan(aSource.mColumnSpan),
|
|
mColumnRuleWidth(aSource.mColumnRuleWidth),
|
|
mTwipsPerPixel(aSource.mTwipsPerPixel) {
|
|
MOZ_COUNT_CTOR(nsStyleColumn);
|
|
}
|
|
|
|
nsChangeHint nsStyleColumn::CalcDifference(
|
|
const nsStyleColumn& aNewData) const {
|
|
if ((mColumnWidth.GetUnit() == eStyleUnit_Auto) !=
|
|
(aNewData.mColumnWidth.GetUnit() == eStyleUnit_Auto) ||
|
|
mColumnCount != aNewData.mColumnCount ||
|
|
mColumnSpan != aNewData.mColumnSpan) {
|
|
// We force column count changes to do a reframe, because it's tricky to
|
|
// handle some edge cases where the column count gets smaller and content
|
|
// overflows.
|
|
// XXX not ideal
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
|
|
if (mColumnWidth != aNewData.mColumnWidth ||
|
|
mColumnFill != aNewData.mColumnFill) {
|
|
return NS_STYLE_HINT_REFLOW;
|
|
}
|
|
|
|
if (GetComputedColumnRuleWidth() != aNewData.GetComputedColumnRuleWidth() ||
|
|
mColumnRuleStyle != aNewData.mColumnRuleStyle ||
|
|
mColumnRuleColor != aNewData.mColumnRuleColor) {
|
|
return NS_STYLE_HINT_VISUAL;
|
|
}
|
|
|
|
// XXX Is it right that we never check mTwipsPerPixel to return a
|
|
// non-nsChangeHint_NeutralChange hint?
|
|
if (mColumnRuleWidth != aNewData.mColumnRuleWidth ||
|
|
mTwipsPerPixel != aNewData.mTwipsPerPixel) {
|
|
return nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleSVG
|
|
//
|
|
nsStyleSVG::nsStyleSVG(const Document& aDocument)
|
|
: mFill(eStyleSVGPaintType_Color), // Will be initialized to NS_RGB(0,0,0)
|
|
mStroke(eStyleSVGPaintType_None),
|
|
mStrokeDashoffset(0, nsStyleCoord::CoordConstructor),
|
|
mStrokeWidth(nsPresContext::CSSPixelsToAppUnits(1),
|
|
nsStyleCoord::CoordConstructor),
|
|
mFillOpacity(1.0f),
|
|
mStrokeMiterlimit(4.0f),
|
|
mStrokeOpacity(1.0f),
|
|
mClipRule(StyleFillRule::Nonzero),
|
|
mColorInterpolation(NS_STYLE_COLOR_INTERPOLATION_SRGB),
|
|
mColorInterpolationFilters(NS_STYLE_COLOR_INTERPOLATION_LINEARRGB),
|
|
mFillRule(StyleFillRule::Nonzero),
|
|
mPaintOrder(NS_STYLE_PAINT_ORDER_NORMAL),
|
|
mShapeRendering(NS_STYLE_SHAPE_RENDERING_AUTO),
|
|
mStrokeLinecap(NS_STYLE_STROKE_LINECAP_BUTT),
|
|
mStrokeLinejoin(NS_STYLE_STROKE_LINEJOIN_MITER),
|
|
mTextAnchor(NS_STYLE_TEXT_ANCHOR_START),
|
|
mContextPropsBits(0),
|
|
mContextFlags(
|
|
(eStyleSVGOpacitySource_Normal << FILL_OPACITY_SOURCE_SHIFT) |
|
|
(eStyleSVGOpacitySource_Normal << STROKE_OPACITY_SOURCE_SHIFT)) {
|
|
MOZ_COUNT_CTOR(nsStyleSVG);
|
|
}
|
|
|
|
nsStyleSVG::~nsStyleSVG() { MOZ_COUNT_DTOR(nsStyleSVG); }
|
|
|
|
nsStyleSVG::nsStyleSVG(const nsStyleSVG& aSource)
|
|
: mFill(aSource.mFill),
|
|
mStroke(aSource.mStroke),
|
|
mMarkerEnd(aSource.mMarkerEnd),
|
|
mMarkerMid(aSource.mMarkerMid),
|
|
mMarkerStart(aSource.mMarkerStart),
|
|
mStrokeDasharray(aSource.mStrokeDasharray),
|
|
mContextProps(aSource.mContextProps),
|
|
mStrokeDashoffset(aSource.mStrokeDashoffset),
|
|
mStrokeWidth(aSource.mStrokeWidth),
|
|
mFillOpacity(aSource.mFillOpacity),
|
|
mStrokeMiterlimit(aSource.mStrokeMiterlimit),
|
|
mStrokeOpacity(aSource.mStrokeOpacity),
|
|
mClipRule(aSource.mClipRule),
|
|
mColorInterpolation(aSource.mColorInterpolation),
|
|
mColorInterpolationFilters(aSource.mColorInterpolationFilters),
|
|
mFillRule(aSource.mFillRule),
|
|
mPaintOrder(aSource.mPaintOrder),
|
|
mShapeRendering(aSource.mShapeRendering),
|
|
mStrokeLinecap(aSource.mStrokeLinecap),
|
|
mStrokeLinejoin(aSource.mStrokeLinejoin),
|
|
mTextAnchor(aSource.mTextAnchor),
|
|
mContextPropsBits(aSource.mContextPropsBits),
|
|
mContextFlags(aSource.mContextFlags) {
|
|
MOZ_COUNT_CTOR(nsStyleSVG);
|
|
}
|
|
|
|
static bool PaintURIChanged(const nsStyleSVGPaint& aPaint1,
|
|
const nsStyleSVGPaint& aPaint2) {
|
|
if (aPaint1.Type() != aPaint2.Type()) {
|
|
return aPaint1.Type() == eStyleSVGPaintType_Server ||
|
|
aPaint2.Type() == eStyleSVGPaintType_Server;
|
|
}
|
|
return aPaint1.Type() == eStyleSVGPaintType_Server &&
|
|
!DefinitelyEqualURIs(aPaint1.GetPaintServer(),
|
|
aPaint2.GetPaintServer());
|
|
}
|
|
|
|
nsChangeHint nsStyleSVG::CalcDifference(const nsStyleSVG& aNewData) const {
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
if (!DefinitelyEqualURIs(mMarkerEnd, aNewData.mMarkerEnd) ||
|
|
!DefinitelyEqualURIs(mMarkerMid, aNewData.mMarkerMid) ||
|
|
!DefinitelyEqualURIs(mMarkerStart, aNewData.mMarkerStart)) {
|
|
// Markers currently contribute to SVGGeometryFrame::mRect,
|
|
// so we need a reflow as well as a repaint. No intrinsic sizes need
|
|
// to change, so nsChangeHint_NeedReflow is sufficient.
|
|
return nsChangeHint_UpdateEffects | nsChangeHint_NeedReflow |
|
|
nsChangeHint_NeedDirtyReflow | // XXX remove me: bug 876085
|
|
nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (mFill != aNewData.mFill || mStroke != aNewData.mStroke ||
|
|
mFillOpacity != aNewData.mFillOpacity ||
|
|
mStrokeOpacity != aNewData.mStrokeOpacity) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
if (HasStroke() != aNewData.HasStroke() ||
|
|
(!HasStroke() && HasFill() != aNewData.HasFill())) {
|
|
// Frame bounds and overflow rects depend on whether we "have" fill or
|
|
// stroke. Whether we have stroke or not just changed, or else we have no
|
|
// stroke (in which case whether we have fill or not is significant to
|
|
// frame bounds) and whether we have fill or not just changed. In either
|
|
// case we need to reflow so the frame rect is updated.
|
|
// XXXperf this is a waste on non SVGGeometryFrames.
|
|
hint |= nsChangeHint_NeedReflow |
|
|
nsChangeHint_NeedDirtyReflow; // XXX remove me: bug 876085
|
|
}
|
|
if (PaintURIChanged(mFill, aNewData.mFill) ||
|
|
PaintURIChanged(mStroke, aNewData.mStroke)) {
|
|
hint |= nsChangeHint_UpdateEffects;
|
|
}
|
|
}
|
|
|
|
// Stroke currently contributes to SVGGeometryFrame::mRect, so
|
|
// we need a reflow here. No intrinsic sizes need to change, so
|
|
// nsChangeHint_NeedReflow is sufficient.
|
|
// Note that stroke-dashoffset does not affect SVGGeometryFrame::mRect.
|
|
// text-anchor changes also require a reflow since it changes frames' rects.
|
|
if (mStrokeWidth != aNewData.mStrokeWidth ||
|
|
mStrokeMiterlimit != aNewData.mStrokeMiterlimit ||
|
|
mStrokeLinecap != aNewData.mStrokeLinecap ||
|
|
mStrokeLinejoin != aNewData.mStrokeLinejoin ||
|
|
mTextAnchor != aNewData.mTextAnchor) {
|
|
return hint | nsChangeHint_NeedReflow |
|
|
nsChangeHint_NeedDirtyReflow | // XXX remove me: bug 876085
|
|
nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (hint & nsChangeHint_RepaintFrame) {
|
|
return hint; // we don't add anything else below
|
|
}
|
|
|
|
if (mStrokeDashoffset != aNewData.mStrokeDashoffset ||
|
|
mClipRule != aNewData.mClipRule ||
|
|
mColorInterpolation != aNewData.mColorInterpolation ||
|
|
mColorInterpolationFilters != aNewData.mColorInterpolationFilters ||
|
|
mFillRule != aNewData.mFillRule || mPaintOrder != aNewData.mPaintOrder ||
|
|
mShapeRendering != aNewData.mShapeRendering ||
|
|
mStrokeDasharray != aNewData.mStrokeDasharray ||
|
|
mContextFlags != aNewData.mContextFlags ||
|
|
mContextPropsBits != aNewData.mContextPropsBits) {
|
|
return hint | nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (!hint) {
|
|
if (mContextProps != aNewData.mContextProps) {
|
|
hint = nsChangeHint_NeutralChange;
|
|
}
|
|
}
|
|
|
|
return hint;
|
|
}
|
|
|
|
// --------------------
|
|
// StyleBasicShape
|
|
|
|
nsCSSKeyword StyleBasicShape::GetShapeTypeName() const {
|
|
switch (mType) {
|
|
case StyleBasicShapeType::Polygon:
|
|
return eCSSKeyword_polygon;
|
|
case StyleBasicShapeType::Circle:
|
|
return eCSSKeyword_circle;
|
|
case StyleBasicShapeType::Ellipse:
|
|
return eCSSKeyword_ellipse;
|
|
case StyleBasicShapeType::Inset:
|
|
return eCSSKeyword_inset;
|
|
}
|
|
MOZ_ASSERT_UNREACHABLE("unexpected type");
|
|
return eCSSKeyword_UNKNOWN;
|
|
}
|
|
|
|
// --------------------
|
|
// StyleShapeSource
|
|
StyleShapeSource::StyleShapeSource() : mBasicShape() {}
|
|
|
|
StyleShapeSource::StyleShapeSource(const StyleShapeSource& aSource) {
|
|
DoCopy(aSource);
|
|
}
|
|
|
|
StyleShapeSource::~StyleShapeSource() { DoDestroy(); }
|
|
|
|
StyleShapeSource& StyleShapeSource::operator=(const StyleShapeSource& aOther) {
|
|
if (this != &aOther) {
|
|
DoCopy(aOther);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
bool StyleShapeSource::operator==(const StyleShapeSource& aOther) const {
|
|
if (mType != aOther.mType) {
|
|
return false;
|
|
}
|
|
|
|
switch (mType) {
|
|
case StyleShapeSourceType::None:
|
|
return true;
|
|
|
|
case StyleShapeSourceType::URL:
|
|
case StyleShapeSourceType::Image:
|
|
return *mShapeImage == *aOther.mShapeImage;
|
|
|
|
case StyleShapeSourceType::Shape:
|
|
return *mBasicShape == *aOther.mBasicShape &&
|
|
mReferenceBox == aOther.mReferenceBox;
|
|
|
|
case StyleShapeSourceType::Box:
|
|
return mReferenceBox == aOther.mReferenceBox;
|
|
|
|
case StyleShapeSourceType::Path:
|
|
return *mSVGPath == *aOther.mSVGPath;
|
|
}
|
|
|
|
MOZ_ASSERT_UNREACHABLE("Unexpected shape source type!");
|
|
return true;
|
|
}
|
|
|
|
void StyleShapeSource::SetURL(const css::URLValue& aValue) {
|
|
if (mType != StyleShapeSourceType::Image &&
|
|
mType != StyleShapeSourceType::URL) {
|
|
DoDestroy();
|
|
new (&mShapeImage) UniquePtr<nsStyleImage>(new nsStyleImage());
|
|
}
|
|
mShapeImage->SetURLValue(do_AddRef(&aValue));
|
|
mType = StyleShapeSourceType::URL;
|
|
}
|
|
|
|
void StyleShapeSource::SetShapeImage(UniquePtr<nsStyleImage> aShapeImage) {
|
|
MOZ_ASSERT(aShapeImage);
|
|
DoDestroy();
|
|
new (&mShapeImage) UniquePtr<nsStyleImage>(std::move(aShapeImage));
|
|
mType = StyleShapeSourceType::Image;
|
|
}
|
|
|
|
imgIRequest* StyleShapeSource::GetShapeImageData() const {
|
|
if (mType != StyleShapeSourceType::Image) {
|
|
return nullptr;
|
|
}
|
|
if (mShapeImage->GetType() != eStyleImageType_Image) {
|
|
return nullptr;
|
|
}
|
|
return mShapeImage->GetImageData();
|
|
}
|
|
|
|
void StyleShapeSource::SetBasicShape(UniquePtr<StyleBasicShape> aBasicShape,
|
|
StyleGeometryBox aReferenceBox) {
|
|
MOZ_ASSERT(aBasicShape);
|
|
DoDestroy();
|
|
new (&mBasicShape) UniquePtr<StyleBasicShape>(std::move(aBasicShape));
|
|
mReferenceBox = aReferenceBox;
|
|
mType = StyleShapeSourceType::Shape;
|
|
}
|
|
|
|
void StyleShapeSource::SetPath(UniquePtr<StyleSVGPath> aPath) {
|
|
MOZ_ASSERT(aPath);
|
|
DoDestroy();
|
|
new (&mSVGPath) UniquePtr<StyleSVGPath>(std::move(aPath));
|
|
mType = StyleShapeSourceType::Path;
|
|
}
|
|
|
|
void StyleShapeSource::TriggerImageLoads(
|
|
Document& aDocument, const StyleShapeSource* aOldShapeSource) {
|
|
if (GetType() != StyleShapeSourceType::Image) {
|
|
return;
|
|
}
|
|
|
|
auto* oldShapeImage = (aOldShapeSource && aOldShapeSource->GetType() ==
|
|
StyleShapeSourceType::Image)
|
|
? &aOldShapeSource->ShapeImage()
|
|
: nullptr;
|
|
mShapeImage->ResolveImage(aDocument, oldShapeImage);
|
|
}
|
|
|
|
void StyleShapeSource::SetReferenceBox(StyleGeometryBox aReferenceBox) {
|
|
DoDestroy();
|
|
mReferenceBox = aReferenceBox;
|
|
mType = StyleShapeSourceType::Box;
|
|
}
|
|
|
|
void StyleShapeSource::DoCopy(const StyleShapeSource& aOther) {
|
|
switch (aOther.mType) {
|
|
case StyleShapeSourceType::None:
|
|
mReferenceBox = StyleGeometryBox::NoBox;
|
|
mType = StyleShapeSourceType::None;
|
|
break;
|
|
|
|
case StyleShapeSourceType::URL:
|
|
SetURL(aOther.URL());
|
|
break;
|
|
|
|
case StyleShapeSourceType::Image:
|
|
SetShapeImage(MakeUnique<nsStyleImage>(aOther.ShapeImage()));
|
|
break;
|
|
|
|
case StyleShapeSourceType::Shape:
|
|
SetBasicShape(MakeUnique<StyleBasicShape>(aOther.BasicShape()),
|
|
aOther.GetReferenceBox());
|
|
break;
|
|
|
|
case StyleShapeSourceType::Box:
|
|
SetReferenceBox(aOther.GetReferenceBox());
|
|
break;
|
|
|
|
case StyleShapeSourceType::Path:
|
|
SetPath(MakeUnique<StyleSVGPath>(aOther.Path()));
|
|
break;
|
|
}
|
|
}
|
|
|
|
void StyleShapeSource::DoDestroy() {
|
|
switch (mType) {
|
|
case StyleShapeSourceType::Shape:
|
|
mBasicShape.~UniquePtr<StyleBasicShape>();
|
|
break;
|
|
case StyleShapeSourceType::Image:
|
|
case StyleShapeSourceType::URL:
|
|
mShapeImage.~UniquePtr<nsStyleImage>();
|
|
break;
|
|
case StyleShapeSourceType::Path:
|
|
mSVGPath.~UniquePtr<StyleSVGPath>();
|
|
break;
|
|
case StyleShapeSourceType::None:
|
|
case StyleShapeSourceType::Box:
|
|
// Not a union type, so do nothing.
|
|
break;
|
|
}
|
|
mType = StyleShapeSourceType::None;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleFilter
|
|
//
|
|
nsStyleFilter::nsStyleFilter()
|
|
: mType(NS_STYLE_FILTER_NONE), mDropShadow(nullptr) {
|
|
MOZ_COUNT_CTOR(nsStyleFilter);
|
|
}
|
|
|
|
nsStyleFilter::nsStyleFilter(const nsStyleFilter& aSource)
|
|
: mType(NS_STYLE_FILTER_NONE), mDropShadow(nullptr) {
|
|
MOZ_COUNT_CTOR(nsStyleFilter);
|
|
if (aSource.mType == NS_STYLE_FILTER_URL) {
|
|
SetURL(aSource.mURL);
|
|
} else if (aSource.mType == NS_STYLE_FILTER_DROP_SHADOW) {
|
|
SetDropShadow(aSource.mDropShadow);
|
|
} else if (aSource.mType != NS_STYLE_FILTER_NONE) {
|
|
SetFilterParameter(aSource.mFilterParameter, aSource.mType);
|
|
}
|
|
}
|
|
|
|
nsStyleFilter::~nsStyleFilter() {
|
|
ReleaseRef();
|
|
MOZ_COUNT_DTOR(nsStyleFilter);
|
|
}
|
|
|
|
nsStyleFilter& nsStyleFilter::operator=(const nsStyleFilter& aOther) {
|
|
if (this == &aOther) {
|
|
return *this;
|
|
}
|
|
|
|
if (aOther.mType == NS_STYLE_FILTER_URL) {
|
|
SetURL(aOther.mURL);
|
|
} else if (aOther.mType == NS_STYLE_FILTER_DROP_SHADOW) {
|
|
SetDropShadow(aOther.mDropShadow);
|
|
} else if (aOther.mType != NS_STYLE_FILTER_NONE) {
|
|
SetFilterParameter(aOther.mFilterParameter, aOther.mType);
|
|
} else {
|
|
ReleaseRef();
|
|
mType = NS_STYLE_FILTER_NONE;
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
bool nsStyleFilter::operator==(const nsStyleFilter& aOther) const {
|
|
if (mType != aOther.mType) {
|
|
return false;
|
|
}
|
|
|
|
if (mType == NS_STYLE_FILTER_URL) {
|
|
return DefinitelyEqualURIs(mURL, aOther.mURL);
|
|
} else if (mType == NS_STYLE_FILTER_DROP_SHADOW) {
|
|
return *mDropShadow == *aOther.mDropShadow;
|
|
} else if (mType != NS_STYLE_FILTER_NONE) {
|
|
return mFilterParameter == aOther.mFilterParameter;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void nsStyleFilter::ReleaseRef() {
|
|
if (mType == NS_STYLE_FILTER_DROP_SHADOW) {
|
|
NS_ASSERTION(mDropShadow, "expected pointer");
|
|
mDropShadow->Release();
|
|
} else if (mType == NS_STYLE_FILTER_URL) {
|
|
NS_ASSERTION(mURL, "expected pointer");
|
|
mURL->Release();
|
|
}
|
|
mURL = nullptr;
|
|
}
|
|
|
|
void nsStyleFilter::SetFilterParameter(const nsStyleCoord& aFilterParameter,
|
|
int32_t aType) {
|
|
ReleaseRef();
|
|
mFilterParameter = aFilterParameter;
|
|
mType = aType;
|
|
}
|
|
|
|
bool nsStyleFilter::SetURL(css::URLValue* aURL) {
|
|
ReleaseRef();
|
|
mURL = aURL;
|
|
mURL->AddRef();
|
|
mType = NS_STYLE_FILTER_URL;
|
|
return true;
|
|
}
|
|
|
|
void nsStyleFilter::SetDropShadow(nsCSSShadowArray* aDropShadow) {
|
|
NS_ASSERTION(aDropShadow, "expected pointer");
|
|
ReleaseRef();
|
|
mDropShadow = aDropShadow;
|
|
mDropShadow->AddRef();
|
|
mType = NS_STYLE_FILTER_DROP_SHADOW;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleSVGReset
|
|
//
|
|
nsStyleSVGReset::nsStyleSVGReset(const Document& aDocument)
|
|
: mMask(nsStyleImageLayers::LayerType::Mask),
|
|
mStopColor(StyleComplexColor::Black()),
|
|
mFloodColor(StyleComplexColor::Black()),
|
|
mLightingColor(StyleComplexColor::White()),
|
|
mStopOpacity(1.0f),
|
|
mFloodOpacity(1.0f),
|
|
mDominantBaseline(NS_STYLE_DOMINANT_BASELINE_AUTO),
|
|
mVectorEffect(NS_STYLE_VECTOR_EFFECT_NONE),
|
|
mMaskType(NS_STYLE_MASK_TYPE_LUMINANCE) {
|
|
MOZ_COUNT_CTOR(nsStyleSVGReset);
|
|
}
|
|
|
|
nsStyleSVGReset::~nsStyleSVGReset() { MOZ_COUNT_DTOR(nsStyleSVGReset); }
|
|
|
|
nsStyleSVGReset::nsStyleSVGReset(const nsStyleSVGReset& aSource)
|
|
: mMask(aSource.mMask),
|
|
mClipPath(aSource.mClipPath),
|
|
mStopColor(aSource.mStopColor),
|
|
mFloodColor(aSource.mFloodColor),
|
|
mLightingColor(aSource.mLightingColor),
|
|
mStopOpacity(aSource.mStopOpacity),
|
|
mFloodOpacity(aSource.mFloodOpacity),
|
|
mDominantBaseline(aSource.mDominantBaseline),
|
|
mVectorEffect(aSource.mVectorEffect),
|
|
mMaskType(aSource.mMaskType) {
|
|
MOZ_COUNT_CTOR(nsStyleSVGReset);
|
|
}
|
|
|
|
void nsStyleSVGReset::TriggerImageLoads(Document& aDocument,
|
|
const nsStyleSVGReset* aOldStyle) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
NS_FOR_VISIBLE_IMAGE_LAYERS_BACK_TO_FRONT(i, mMask) {
|
|
nsStyleImage& image = mMask.mLayers[i].mImage;
|
|
if (image.GetType() == eStyleImageType_Image) {
|
|
const auto* url = image.GetURLValue();
|
|
// If the url is a local ref, it must be a <mask-resource>, so we don't
|
|
// need to resolve the style image.
|
|
if (url->IsLocalRef()) {
|
|
continue;
|
|
}
|
|
#if 0
|
|
// XXX The old style system also checks whether this is a reference to
|
|
// the current document with reference, but it doesn't seem to be a
|
|
// behavior mentioned anywhere, so we comment out the code for now.
|
|
nsIURI* docURI = aPresContext->Document()->GetDocumentURI();
|
|
if (url->EqualsExceptRef(docURI)) {
|
|
continue;
|
|
}
|
|
#endif
|
|
|
|
// Otherwise, we may need the image even if it has a reference, in case
|
|
// the referenced element isn't a valid SVG <mask> element.
|
|
const nsStyleImage* oldImage =
|
|
(aOldStyle && aOldStyle->mMask.mLayers.Length() > i)
|
|
? &aOldStyle->mMask.mLayers[i].mImage
|
|
: nullptr;
|
|
|
|
image.ResolveImage(aDocument, oldImage);
|
|
}
|
|
}
|
|
}
|
|
|
|
nsChangeHint nsStyleSVGReset::CalcDifference(
|
|
const nsStyleSVGReset& aNewData) const {
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
if (mClipPath != aNewData.mClipPath) {
|
|
hint |= nsChangeHint_UpdateEffects | nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (mDominantBaseline != aNewData.mDominantBaseline) {
|
|
// XXXjwatt: why NS_STYLE_HINT_REFLOW? Isn't that excessive?
|
|
hint |= NS_STYLE_HINT_REFLOW;
|
|
} else if (mVectorEffect != aNewData.mVectorEffect) {
|
|
// Stroke currently affects SVGGeometryFrame::mRect, and
|
|
// vector-effect affect stroke. As a result we need to reflow if
|
|
// vector-effect changes in order to have SVGGeometryFrame::
|
|
// ReflowSVG called to update its mRect. No intrinsic sizes need
|
|
// to change so nsChangeHint_NeedReflow is sufficient.
|
|
hint |= nsChangeHint_NeedReflow |
|
|
nsChangeHint_NeedDirtyReflow | // XXX remove me: bug 876085
|
|
nsChangeHint_RepaintFrame;
|
|
} else if (mStopColor != aNewData.mStopColor ||
|
|
mFloodColor != aNewData.mFloodColor ||
|
|
mLightingColor != aNewData.mLightingColor ||
|
|
mStopOpacity != aNewData.mStopOpacity ||
|
|
mFloodOpacity != aNewData.mFloodOpacity ||
|
|
mMaskType != aNewData.mMaskType) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
hint |=
|
|
mMask.CalcDifference(aNewData.mMask, nsStyleImageLayers::LayerType::Mask);
|
|
|
|
return hint;
|
|
}
|
|
|
|
bool nsStyleSVGReset::HasMask() const {
|
|
for (uint32_t i = 0; i < mMask.mImageCount; i++) {
|
|
if (!mMask.mLayers[i].mImage.IsEmpty()) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// nsStyleSVGPaint implementation
|
|
nsStyleSVGPaint::nsStyleSVGPaint(nsStyleSVGPaintType aType)
|
|
: mPaint(StyleComplexColor::Black()),
|
|
mType(aType),
|
|
mFallbackType(eStyleSVGFallbackType_NotSet),
|
|
mFallbackColor(StyleComplexColor::Black()) {
|
|
MOZ_ASSERT(aType == nsStyleSVGPaintType(0) ||
|
|
aType == eStyleSVGPaintType_None ||
|
|
aType == eStyleSVGPaintType_Color);
|
|
}
|
|
|
|
nsStyleSVGPaint::nsStyleSVGPaint(const nsStyleSVGPaint& aSource)
|
|
: nsStyleSVGPaint(nsStyleSVGPaintType(0)) {
|
|
Assign(aSource);
|
|
}
|
|
|
|
nsStyleSVGPaint::~nsStyleSVGPaint() { Reset(); }
|
|
|
|
void nsStyleSVGPaint::Reset() {
|
|
switch (mType) {
|
|
case eStyleSVGPaintType_None:
|
|
break;
|
|
case eStyleSVGPaintType_Color:
|
|
mPaint.mColor = StyleComplexColor::Black();
|
|
break;
|
|
case eStyleSVGPaintType_Server:
|
|
mPaint.mPaintServer->Release();
|
|
mPaint.mPaintServer = nullptr;
|
|
MOZ_FALLTHROUGH;
|
|
case eStyleSVGPaintType_ContextFill:
|
|
case eStyleSVGPaintType_ContextStroke:
|
|
mFallbackType = eStyleSVGFallbackType_NotSet;
|
|
mFallbackColor = StyleComplexColor::Black();
|
|
break;
|
|
}
|
|
mType = nsStyleSVGPaintType(0);
|
|
}
|
|
|
|
nsStyleSVGPaint& nsStyleSVGPaint::operator=(const nsStyleSVGPaint& aOther) {
|
|
if (this != &aOther) {
|
|
Assign(aOther);
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
void nsStyleSVGPaint::Assign(const nsStyleSVGPaint& aOther) {
|
|
MOZ_ASSERT(aOther.mType != nsStyleSVGPaintType(0),
|
|
"shouldn't copy uninitialized nsStyleSVGPaint");
|
|
|
|
switch (aOther.mType) {
|
|
case eStyleSVGPaintType_None:
|
|
SetNone();
|
|
break;
|
|
case eStyleSVGPaintType_Color:
|
|
SetColor(aOther.mPaint.mColor);
|
|
break;
|
|
case eStyleSVGPaintType_Server:
|
|
SetPaintServer(aOther.mPaint.mPaintServer, aOther.mFallbackType,
|
|
aOther.mFallbackColor);
|
|
break;
|
|
case eStyleSVGPaintType_ContextFill:
|
|
case eStyleSVGPaintType_ContextStroke:
|
|
SetContextValue(aOther.mType, aOther.mFallbackType,
|
|
aOther.mFallbackColor);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void nsStyleSVGPaint::SetNone() {
|
|
Reset();
|
|
mType = eStyleSVGPaintType_None;
|
|
}
|
|
|
|
void nsStyleSVGPaint::SetContextValue(nsStyleSVGPaintType aType,
|
|
nsStyleSVGFallbackType aFallbackType,
|
|
StyleComplexColor aFallbackColor) {
|
|
MOZ_ASSERT(aType == eStyleSVGPaintType_ContextFill ||
|
|
aType == eStyleSVGPaintType_ContextStroke);
|
|
Reset();
|
|
mType = aType;
|
|
mFallbackType = aFallbackType;
|
|
mFallbackColor = aFallbackColor;
|
|
}
|
|
|
|
void nsStyleSVGPaint::SetColor(StyleComplexColor aColor) {
|
|
Reset();
|
|
mType = eStyleSVGPaintType_Color;
|
|
mPaint.mColor = aColor;
|
|
}
|
|
|
|
void nsStyleSVGPaint::SetPaintServer(css::URLValue* aPaintServer,
|
|
nsStyleSVGFallbackType aFallbackType,
|
|
StyleComplexColor aFallbackColor) {
|
|
MOZ_ASSERT(aPaintServer);
|
|
Reset();
|
|
mType = eStyleSVGPaintType_Server;
|
|
mPaint.mPaintServer = aPaintServer;
|
|
mPaint.mPaintServer->AddRef();
|
|
mFallbackType = aFallbackType;
|
|
mFallbackColor = aFallbackColor;
|
|
}
|
|
|
|
bool nsStyleSVGPaint::operator==(const nsStyleSVGPaint& aOther) const {
|
|
if (mType != aOther.mType) {
|
|
return false;
|
|
}
|
|
switch (mType) {
|
|
case eStyleSVGPaintType_Color:
|
|
return mPaint.mColor == aOther.mPaint.mColor;
|
|
case eStyleSVGPaintType_Server:
|
|
return DefinitelyEqualURIs(mPaint.mPaintServer,
|
|
aOther.mPaint.mPaintServer) &&
|
|
mFallbackType == aOther.mFallbackType &&
|
|
mFallbackColor == aOther.mFallbackColor;
|
|
case eStyleSVGPaintType_ContextFill:
|
|
case eStyleSVGPaintType_ContextStroke:
|
|
return mFallbackType == aOther.mFallbackType &&
|
|
mFallbackColor == aOther.mFallbackColor;
|
|
default:
|
|
MOZ_ASSERT(mType == eStyleSVGPaintType_None, "Unexpected SVG paint type");
|
|
return true;
|
|
}
|
|
}
|
|
|
|
// --------------------
|
|
// nsStylePosition
|
|
//
|
|
nsStylePosition::nsStylePosition(const Document& aDocument)
|
|
: mObjectPosition(Position::FromPercentage(0.5f)),
|
|
mOffset(StyleRectWithAllSides(LengthPercentageOrAuto::Auto())),
|
|
mWidth(StyleSize::Auto()),
|
|
mMinWidth(StyleSize::Auto()),
|
|
mMaxWidth(StyleMaxSize::None()),
|
|
mHeight(StyleSize::Auto()),
|
|
mMinHeight(StyleSize::Auto()),
|
|
mMaxHeight(StyleMaxSize::None()),
|
|
mFlexBasis(StyleFlexBasis::Size(StyleSize::Auto())),
|
|
mGridAutoColumnsMin(eStyleUnit_Auto),
|
|
mGridAutoColumnsMax(eStyleUnit_Auto),
|
|
mGridAutoRowsMin(eStyleUnit_Auto),
|
|
mGridAutoRowsMax(eStyleUnit_Auto),
|
|
mGridAutoFlow(NS_STYLE_GRID_AUTO_FLOW_ROW),
|
|
mBoxSizing(StyleBoxSizing::Content),
|
|
mAlignContent(NS_STYLE_ALIGN_NORMAL),
|
|
mAlignItems(NS_STYLE_ALIGN_NORMAL),
|
|
mAlignSelf(NS_STYLE_ALIGN_AUTO),
|
|
mJustifyContent(NS_STYLE_JUSTIFY_NORMAL),
|
|
mSpecifiedJustifyItems(NS_STYLE_JUSTIFY_LEGACY),
|
|
mJustifyItems(NS_STYLE_JUSTIFY_NORMAL),
|
|
mJustifySelf(NS_STYLE_JUSTIFY_AUTO),
|
|
mFlexDirection(NS_STYLE_FLEX_DIRECTION_ROW),
|
|
mFlexWrap(NS_STYLE_FLEX_WRAP_NOWRAP),
|
|
mObjectFit(NS_STYLE_OBJECT_FIT_FILL),
|
|
mOrder(NS_STYLE_ORDER_INITIAL),
|
|
mFlexGrow(0.0f),
|
|
mFlexShrink(1.0f),
|
|
mZIndex(eStyleUnit_Auto),
|
|
mColumnGap(eStyleUnit_Normal),
|
|
mRowGap(eStyleUnit_Normal) {
|
|
MOZ_COUNT_CTOR(nsStylePosition);
|
|
|
|
// The initial value of grid-auto-columns and grid-auto-rows is 'auto',
|
|
// which computes to 'minmax(auto, auto)'.
|
|
|
|
// Other members get their default constructors
|
|
// which initialize them to representations of their respective initial value.
|
|
// mGridTemplateAreas: nullptr for 'none'
|
|
// mGridTemplate{Rows,Columns}: false and empty arrays for 'none'
|
|
// mGrid{Column,Row}{Start,End}: false/0/empty values for 'auto'
|
|
}
|
|
|
|
nsStylePosition::~nsStylePosition() { MOZ_COUNT_DTOR(nsStylePosition); }
|
|
|
|
nsStylePosition::nsStylePosition(const nsStylePosition& aSource)
|
|
: mObjectPosition(aSource.mObjectPosition),
|
|
mOffset(aSource.mOffset),
|
|
mWidth(aSource.mWidth),
|
|
mMinWidth(aSource.mMinWidth),
|
|
mMaxWidth(aSource.mMaxWidth),
|
|
mHeight(aSource.mHeight),
|
|
mMinHeight(aSource.mMinHeight),
|
|
mMaxHeight(aSource.mMaxHeight),
|
|
mFlexBasis(aSource.mFlexBasis),
|
|
mGridAutoColumnsMin(aSource.mGridAutoColumnsMin),
|
|
mGridAutoColumnsMax(aSource.mGridAutoColumnsMax),
|
|
mGridAutoRowsMin(aSource.mGridAutoRowsMin),
|
|
mGridAutoRowsMax(aSource.mGridAutoRowsMax),
|
|
mGridAutoFlow(aSource.mGridAutoFlow),
|
|
mBoxSizing(aSource.mBoxSizing),
|
|
mAlignContent(aSource.mAlignContent),
|
|
mAlignItems(aSource.mAlignItems),
|
|
mAlignSelf(aSource.mAlignSelf),
|
|
mJustifyContent(aSource.mJustifyContent),
|
|
mSpecifiedJustifyItems(aSource.mSpecifiedJustifyItems),
|
|
mJustifyItems(aSource.mJustifyItems),
|
|
mJustifySelf(aSource.mJustifySelf),
|
|
mFlexDirection(aSource.mFlexDirection),
|
|
mFlexWrap(aSource.mFlexWrap),
|
|
mObjectFit(aSource.mObjectFit),
|
|
mOrder(aSource.mOrder),
|
|
mFlexGrow(aSource.mFlexGrow),
|
|
mFlexShrink(aSource.mFlexShrink),
|
|
mZIndex(aSource.mZIndex),
|
|
mGridTemplateAreas(aSource.mGridTemplateAreas),
|
|
mGridColumnStart(aSource.mGridColumnStart),
|
|
mGridColumnEnd(aSource.mGridColumnEnd),
|
|
mGridRowStart(aSource.mGridRowStart),
|
|
mGridRowEnd(aSource.mGridRowEnd),
|
|
mColumnGap(aSource.mColumnGap),
|
|
mRowGap(aSource.mRowGap) {
|
|
MOZ_COUNT_CTOR(nsStylePosition);
|
|
|
|
if (aSource.mGridTemplateColumns) {
|
|
mGridTemplateColumns =
|
|
MakeUnique<nsStyleGridTemplate>(*aSource.mGridTemplateColumns);
|
|
}
|
|
if (aSource.mGridTemplateRows) {
|
|
mGridTemplateRows =
|
|
MakeUnique<nsStyleGridTemplate>(*aSource.mGridTemplateRows);
|
|
}
|
|
}
|
|
|
|
static bool IsAutonessEqual(const StyleRect<LengthPercentageOrAuto>& aSides1,
|
|
const StyleRect<LengthPercentageOrAuto>& aSides2) {
|
|
NS_FOR_CSS_SIDES(side) {
|
|
if (aSides1.Get(side).IsAuto() != aSides2.Get(side).IsAuto()) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool IsGridTemplateEqual(
|
|
const UniquePtr<nsStyleGridTemplate>& aOldData,
|
|
const UniquePtr<nsStyleGridTemplate>& aNewData) {
|
|
if (aOldData == aNewData) {
|
|
return true;
|
|
}
|
|
if (!aOldData || !aNewData) {
|
|
return false;
|
|
}
|
|
return *aOldData == *aNewData;
|
|
}
|
|
|
|
nsChangeHint nsStylePosition::CalcDifference(
|
|
const nsStylePosition& aNewData,
|
|
const nsStyleVisibility& aOldStyleVisibility) const {
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
// Changes to "z-index" require a repaint.
|
|
if (mZIndex != aNewData.mZIndex) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
// Changes to "object-fit" & "object-position" require a repaint. They
|
|
// may also require a reflow, if we have a nsSubDocumentFrame, so that we
|
|
// can adjust the size & position of the subdocument.
|
|
if (mObjectFit != aNewData.mObjectFit ||
|
|
mObjectPosition != aNewData.mObjectPosition) {
|
|
hint |= nsChangeHint_RepaintFrame | nsChangeHint_NeedReflow;
|
|
}
|
|
|
|
if (mOrder != aNewData.mOrder) {
|
|
// "order" impacts both layout order and stacking order, so we need both a
|
|
// reflow and a repaint when it changes. (Technically, we only need a
|
|
// reflow if we're in a multi-line flexbox (which we can't be sure about,
|
|
// since that's determined by styling on our parent) -- there, "order" can
|
|
// affect which flex line we end up on, & hence can affect our sizing by
|
|
// changing the group of flex items we're competing with for space.)
|
|
return hint | nsChangeHint_RepaintFrame | nsChangeHint_AllReflowHints;
|
|
}
|
|
|
|
if (mBoxSizing != aNewData.mBoxSizing) {
|
|
// Can affect both widths and heights; just a bad scene.
|
|
return hint | nsChangeHint_AllReflowHints;
|
|
}
|
|
|
|
// Properties that apply to flex items:
|
|
// XXXdholbert These should probably be more targeted (bug 819536)
|
|
if (mAlignSelf != aNewData.mAlignSelf || mFlexBasis != aNewData.mFlexBasis ||
|
|
mFlexGrow != aNewData.mFlexGrow || mFlexShrink != aNewData.mFlexShrink) {
|
|
return hint | nsChangeHint_AllReflowHints;
|
|
}
|
|
|
|
// Properties that apply to flex containers:
|
|
// - flex-direction can swap a flex container between vertical & horizontal.
|
|
// - align-items can change the sizing of a flex container & the positioning
|
|
// of its children.
|
|
// - flex-wrap changes whether a flex container's children are wrapped, which
|
|
// impacts their sizing/positioning and hence impacts the container's size.
|
|
if (mAlignItems != aNewData.mAlignItems ||
|
|
mFlexDirection != aNewData.mFlexDirection ||
|
|
mFlexWrap != aNewData.mFlexWrap) {
|
|
return hint | nsChangeHint_AllReflowHints;
|
|
}
|
|
|
|
// Properties that apply to grid containers:
|
|
// FIXME: only for grid containers
|
|
// (ie. 'display: grid' or 'display: inline-grid')
|
|
if (!IsGridTemplateEqual(mGridTemplateColumns,
|
|
aNewData.mGridTemplateColumns) ||
|
|
!IsGridTemplateEqual(mGridTemplateRows, aNewData.mGridTemplateRows) ||
|
|
mGridTemplateAreas != aNewData.mGridTemplateAreas ||
|
|
mGridAutoColumnsMin != aNewData.mGridAutoColumnsMin ||
|
|
mGridAutoColumnsMax != aNewData.mGridAutoColumnsMax ||
|
|
mGridAutoRowsMin != aNewData.mGridAutoRowsMin ||
|
|
mGridAutoRowsMax != aNewData.mGridAutoRowsMax ||
|
|
mGridAutoFlow != aNewData.mGridAutoFlow) {
|
|
return hint | nsChangeHint_AllReflowHints;
|
|
}
|
|
|
|
// Properties that apply to grid items:
|
|
// FIXME: only for grid items
|
|
// (ie. parent frame is 'display: grid' or 'display: inline-grid')
|
|
if (mGridColumnStart != aNewData.mGridColumnStart ||
|
|
mGridColumnEnd != aNewData.mGridColumnEnd ||
|
|
mGridRowStart != aNewData.mGridRowStart ||
|
|
mGridRowEnd != aNewData.mGridRowEnd ||
|
|
mColumnGap != aNewData.mColumnGap || mRowGap != aNewData.mRowGap) {
|
|
return hint | nsChangeHint_AllReflowHints;
|
|
}
|
|
|
|
// Changing 'justify-content/items/self' might affect the positioning,
|
|
// but it won't affect any sizing.
|
|
if (mJustifyContent != aNewData.mJustifyContent ||
|
|
mJustifyItems != aNewData.mJustifyItems ||
|
|
mJustifySelf != aNewData.mJustifySelf) {
|
|
hint |= nsChangeHint_NeedReflow;
|
|
}
|
|
|
|
// No need to do anything if mSpecifiedJustifyItems changes, as long as
|
|
// mJustifyItems (tested above) is unchanged.
|
|
if (mSpecifiedJustifyItems != aNewData.mSpecifiedJustifyItems) {
|
|
hint |= nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
// 'align-content' doesn't apply to a single-line flexbox but we don't know
|
|
// if we're a flex container at this point so we can't optimize for that.
|
|
if (mAlignContent != aNewData.mAlignContent) {
|
|
hint |= nsChangeHint_NeedReflow;
|
|
}
|
|
|
|
bool widthChanged = mWidth != aNewData.mWidth ||
|
|
mMinWidth != aNewData.mMinWidth ||
|
|
mMaxWidth != aNewData.mMaxWidth;
|
|
bool heightChanged = mHeight != aNewData.mHeight ||
|
|
mMinHeight != aNewData.mMinHeight ||
|
|
mMaxHeight != aNewData.mMaxHeight;
|
|
|
|
// Note that we pass an nsStyleVisibility here because we don't want
|
|
// to cause a new struct to be computed during
|
|
// ComputedStyle::CalcStyleDifference, which can lead to incorrect
|
|
// style data.
|
|
// It doesn't matter whether we're looking at the old or new
|
|
// visibility struct, since a change between vertical and horizontal
|
|
// writing-mode will cause a reframe, and it's easier to pass the old.
|
|
bool isVertical = WritingMode(&aOldStyleVisibility).IsVertical();
|
|
if (isVertical ? widthChanged : heightChanged) {
|
|
hint |= nsChangeHint_ReflowHintsForBSizeChange;
|
|
}
|
|
|
|
if (isVertical ? heightChanged : widthChanged) {
|
|
hint |= nsChangeHint_ReflowHintsForISizeChange;
|
|
}
|
|
|
|
// If any of the offsets have changed, then return the respective hints
|
|
// so that we would hopefully be able to avoid reflowing.
|
|
// Note that it is possible that we'll need to reflow when processing
|
|
// restyles, but we don't have enough information to make a good decision
|
|
// right now.
|
|
// Don't try to handle changes between "auto" and non-auto efficiently;
|
|
// that's tricky to do and will hardly ever be able to avoid a reflow.
|
|
if (mOffset != aNewData.mOffset) {
|
|
if (IsAutonessEqual(mOffset, aNewData.mOffset)) {
|
|
hint |=
|
|
nsChangeHint_RecomputePosition | nsChangeHint_UpdateParentOverflow;
|
|
} else {
|
|
hint |= nsChangeHint_AllReflowHints;
|
|
}
|
|
}
|
|
return hint;
|
|
}
|
|
|
|
uint8_t nsStylePosition::UsedAlignSelf(ComputedStyle* aParent) const {
|
|
if (mAlignSelf != NS_STYLE_ALIGN_AUTO) {
|
|
return mAlignSelf;
|
|
}
|
|
if (MOZ_LIKELY(aParent)) {
|
|
auto parentAlignItems = aParent->StylePosition()->mAlignItems;
|
|
MOZ_ASSERT(!(parentAlignItems & NS_STYLE_ALIGN_LEGACY),
|
|
"align-items can't have 'legacy'");
|
|
return parentAlignItems;
|
|
}
|
|
return NS_STYLE_ALIGN_NORMAL;
|
|
}
|
|
|
|
uint8_t nsStylePosition::UsedJustifySelf(ComputedStyle* aParent) const {
|
|
if (mJustifySelf != NS_STYLE_JUSTIFY_AUTO) {
|
|
return mJustifySelf;
|
|
}
|
|
if (MOZ_LIKELY(aParent)) {
|
|
auto inheritedJustifyItems = aParent->StylePosition()->mJustifyItems;
|
|
return inheritedJustifyItems & ~NS_STYLE_JUSTIFY_LEGACY;
|
|
}
|
|
return NS_STYLE_JUSTIFY_NORMAL;
|
|
}
|
|
|
|
static StaticAutoPtr<nsStyleGridTemplate> sDefaultGridTemplate;
|
|
|
|
static const nsStyleGridTemplate& DefaultGridTemplate() {
|
|
if (!sDefaultGridTemplate) {
|
|
sDefaultGridTemplate = new nsStyleGridTemplate;
|
|
ClearOnShutdown(&sDefaultGridTemplate);
|
|
}
|
|
return *sDefaultGridTemplate;
|
|
}
|
|
|
|
const nsStyleGridTemplate& nsStylePosition::GridTemplateColumns() const {
|
|
return mGridTemplateColumns ? *mGridTemplateColumns : DefaultGridTemplate();
|
|
}
|
|
|
|
const nsStyleGridTemplate& nsStylePosition::GridTemplateRows() const {
|
|
return mGridTemplateRows ? *mGridTemplateRows : DefaultGridTemplate();
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleTable
|
|
//
|
|
|
|
nsStyleTable::nsStyleTable(const Document& aDocument)
|
|
: mLayoutStrategy(NS_STYLE_TABLE_LAYOUT_AUTO), mSpan(1) {
|
|
MOZ_COUNT_CTOR(nsStyleTable);
|
|
}
|
|
|
|
nsStyleTable::~nsStyleTable() { MOZ_COUNT_DTOR(nsStyleTable); }
|
|
|
|
nsStyleTable::nsStyleTable(const nsStyleTable& aSource)
|
|
: mLayoutStrategy(aSource.mLayoutStrategy), mSpan(aSource.mSpan) {
|
|
MOZ_COUNT_CTOR(nsStyleTable);
|
|
}
|
|
|
|
nsChangeHint nsStyleTable::CalcDifference(const nsStyleTable& aNewData) const {
|
|
if (mSpan != aNewData.mSpan || mLayoutStrategy != aNewData.mLayoutStrategy) {
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
// -----------------------
|
|
// nsStyleTableBorder
|
|
|
|
nsStyleTableBorder::nsStyleTableBorder(const Document& aDocument)
|
|
: mBorderSpacingCol(0),
|
|
mBorderSpacingRow(0),
|
|
mBorderCollapse(NS_STYLE_BORDER_SEPARATE),
|
|
mCaptionSide(NS_STYLE_CAPTION_SIDE_TOP),
|
|
mEmptyCells(NS_STYLE_TABLE_EMPTY_CELLS_SHOW) {
|
|
MOZ_COUNT_CTOR(nsStyleTableBorder);
|
|
}
|
|
|
|
nsStyleTableBorder::~nsStyleTableBorder() {
|
|
MOZ_COUNT_DTOR(nsStyleTableBorder);
|
|
}
|
|
|
|
nsStyleTableBorder::nsStyleTableBorder(const nsStyleTableBorder& aSource)
|
|
: mBorderSpacingCol(aSource.mBorderSpacingCol),
|
|
mBorderSpacingRow(aSource.mBorderSpacingRow),
|
|
mBorderCollapse(aSource.mBorderCollapse),
|
|
mCaptionSide(aSource.mCaptionSide),
|
|
mEmptyCells(aSource.mEmptyCells) {
|
|
MOZ_COUNT_CTOR(nsStyleTableBorder);
|
|
}
|
|
|
|
nsChangeHint nsStyleTableBorder::CalcDifference(
|
|
const nsStyleTableBorder& aNewData) const {
|
|
// Border-collapse changes need a reframe, because we use a different frame
|
|
// class for table cells in the collapsed border model. This is used to
|
|
// conserve memory when using the separated border model (collapsed borders
|
|
// require extra state to be stored).
|
|
if (mBorderCollapse != aNewData.mBorderCollapse) {
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
|
|
if ((mCaptionSide == aNewData.mCaptionSide) &&
|
|
(mBorderSpacingCol == aNewData.mBorderSpacingCol) &&
|
|
(mBorderSpacingRow == aNewData.mBorderSpacingRow)) {
|
|
if (mEmptyCells == aNewData.mEmptyCells) {
|
|
return nsChangeHint(0);
|
|
}
|
|
return NS_STYLE_HINT_VISUAL;
|
|
} else {
|
|
return NS_STYLE_HINT_REFLOW;
|
|
}
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleColor
|
|
//
|
|
|
|
static nscolor DefaultColor(const Document& aDocument) {
|
|
auto* pc = aDocument.GetPresContext();
|
|
return pc ? pc->DefaultColor() : NS_RGB(0, 0, 0);
|
|
}
|
|
|
|
nsStyleColor::nsStyleColor(const Document& aDocument)
|
|
: mColor(DefaultColor(aDocument)) {
|
|
MOZ_COUNT_CTOR(nsStyleColor);
|
|
}
|
|
|
|
nsStyleColor::nsStyleColor(const nsStyleColor& aSource)
|
|
: mColor(aSource.mColor) {
|
|
MOZ_COUNT_CTOR(nsStyleColor);
|
|
}
|
|
|
|
nsChangeHint nsStyleColor::CalcDifference(const nsStyleColor& aNewData) const {
|
|
if (mColor == aNewData.mColor) {
|
|
return nsChangeHint(0);
|
|
}
|
|
return nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleGradient
|
|
//
|
|
bool nsStyleGradient::operator==(const nsStyleGradient& aOther) const {
|
|
MOZ_ASSERT(mSize == NS_STYLE_GRADIENT_SIZE_FARTHEST_CORNER ||
|
|
mShape != NS_STYLE_GRADIENT_SHAPE_LINEAR,
|
|
"incorrect combination of shape and size");
|
|
MOZ_ASSERT(aOther.mSize == NS_STYLE_GRADIENT_SIZE_FARTHEST_CORNER ||
|
|
aOther.mShape != NS_STYLE_GRADIENT_SHAPE_LINEAR,
|
|
"incorrect combination of shape and size");
|
|
|
|
if (mShape != aOther.mShape || mSize != aOther.mSize ||
|
|
mRepeating != aOther.mRepeating ||
|
|
mLegacySyntax != aOther.mLegacySyntax ||
|
|
mMozLegacySyntax != aOther.mMozLegacySyntax ||
|
|
mBgPosX != aOther.mBgPosX || mBgPosY != aOther.mBgPosY ||
|
|
mAngle != aOther.mAngle || mRadiusX != aOther.mRadiusX ||
|
|
mRadiusY != aOther.mRadiusY) {
|
|
return false;
|
|
}
|
|
|
|
if (mStops.Length() != aOther.mStops.Length()) {
|
|
return false;
|
|
}
|
|
|
|
for (uint32_t i = 0; i < mStops.Length(); i++) {
|
|
const auto& stop1 = mStops[i];
|
|
const auto& stop2 = aOther.mStops[i];
|
|
if (stop1.mLocation != stop2.mLocation ||
|
|
stop1.mIsInterpolationHint != stop2.mIsInterpolationHint ||
|
|
(!stop1.mIsInterpolationHint && stop1.mColor != stop2.mColor)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
nsStyleGradient::nsStyleGradient()
|
|
: mShape(NS_STYLE_GRADIENT_SHAPE_LINEAR),
|
|
mSize(NS_STYLE_GRADIENT_SIZE_FARTHEST_CORNER),
|
|
mRepeating(false),
|
|
mLegacySyntax(false),
|
|
mMozLegacySyntax(false) {}
|
|
|
|
bool nsStyleGradient::IsOpaque() {
|
|
for (uint32_t i = 0; i < mStops.Length(); i++) {
|
|
if (mStops[i].mColor.MaybeTransparent()) {
|
|
// We don't know the foreground color here, so if it's being used
|
|
// we must assume it might be transparent.
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool nsStyleGradient::HasCalc() {
|
|
for (uint32_t i = 0; i < mStops.Length(); i++) {
|
|
if (mStops[i].mLocation.IsCalcUnit()) {
|
|
return true;
|
|
}
|
|
}
|
|
return mBgPosX.IsCalcUnit() || mBgPosY.IsCalcUnit() || mAngle.IsCalcUnit() ||
|
|
mRadiusX.IsCalcUnit() || mRadiusY.IsCalcUnit();
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleImageRequest
|
|
|
|
/**
|
|
* Runnable to release the nsStyleImageRequest's mRequestProxy
|
|
* and mImageTracker on the main thread, and to perform
|
|
* any necessary unlocking and untracking of the image.
|
|
*/
|
|
class StyleImageRequestCleanupTask : public mozilla::Runnable {
|
|
public:
|
|
typedef nsStyleImageRequest::Mode Mode;
|
|
|
|
StyleImageRequestCleanupTask(Mode aModeFlags,
|
|
already_AddRefed<imgRequestProxy> aRequestProxy,
|
|
already_AddRefed<ImageTracker> aImageTracker)
|
|
: mozilla::Runnable("StyleImageRequestCleanupTask"),
|
|
mModeFlags(aModeFlags),
|
|
mRequestProxy(aRequestProxy),
|
|
mImageTracker(aImageTracker) {}
|
|
|
|
NS_IMETHOD Run() final {
|
|
MOZ_ASSERT(!mRequestProxy || NS_IsMainThread(),
|
|
"If mRequestProxy is non-null, we need to run on main thread!");
|
|
|
|
if (!mRequestProxy) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (mModeFlags & Mode::Track) {
|
|
MOZ_ASSERT(mImageTracker);
|
|
mImageTracker->Remove(mRequestProxy);
|
|
} else {
|
|
mRequestProxy->UnlockImage();
|
|
}
|
|
|
|
if (mModeFlags & Mode::Discard) {
|
|
mRequestProxy->RequestDiscard();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
protected:
|
|
virtual ~StyleImageRequestCleanupTask() {
|
|
MOZ_ASSERT((!mRequestProxy && !mImageTracker) || NS_IsMainThread(),
|
|
"mRequestProxy and mImageTracker's destructor need to run "
|
|
"on the main thread!");
|
|
}
|
|
|
|
private:
|
|
Mode mModeFlags;
|
|
// Since we always dispatch this runnable to the main thread, these will be
|
|
// released on the main thread when the runnable itself is released.
|
|
RefPtr<imgRequestProxy> mRequestProxy;
|
|
RefPtr<ImageTracker> mImageTracker;
|
|
};
|
|
|
|
nsStyleImageRequest::nsStyleImageRequest(Mode aModeFlags,
|
|
css::URLValue* aImageValue)
|
|
: mImageValue(aImageValue), mModeFlags(aModeFlags), mResolved(false) {}
|
|
|
|
nsStyleImageRequest::~nsStyleImageRequest() {
|
|
// We may or may not be being destroyed on the main thread. To clean
|
|
// up, we must untrack and unlock the image (depending on mModeFlags),
|
|
// and release mRequestProxy and mImageTracker, all on the main thread.
|
|
{
|
|
RefPtr<StyleImageRequestCleanupTask> task =
|
|
new StyleImageRequestCleanupTask(mModeFlags, mRequestProxy.forget(),
|
|
mImageTracker.forget());
|
|
if (NS_IsMainThread()) {
|
|
task->Run();
|
|
} else {
|
|
if (mDocGroup) {
|
|
mDocGroup->Dispatch(TaskCategory::Other, task.forget());
|
|
} else {
|
|
// if Resolve was not called at some point, mDocGroup is not set.
|
|
SystemGroup::Dispatch(TaskCategory::Other, task.forget());
|
|
}
|
|
}
|
|
}
|
|
|
|
MOZ_ASSERT(!mRequestProxy);
|
|
MOZ_ASSERT(!mImageTracker);
|
|
}
|
|
|
|
bool nsStyleImageRequest::Resolve(Document& aDocument,
|
|
const nsStyleImageRequest* aOldImageRequest) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(!IsResolved(), "already resolved");
|
|
|
|
mResolved = true;
|
|
|
|
nsIURI* docURI = aDocument.GetDocumentURI();
|
|
if (GetImageValue()->HasRef()) {
|
|
bool isEqualExceptRef = false;
|
|
RefPtr<nsIURI> imageURI = GetImageURI();
|
|
if (!imageURI) {
|
|
return false;
|
|
}
|
|
|
|
if (NS_SUCCEEDED(imageURI->EqualsExceptRef(docURI, &isEqualExceptRef)) &&
|
|
isEqualExceptRef) {
|
|
// Prevent loading an internal resource.
|
|
return true;
|
|
}
|
|
}
|
|
|
|
// TODO(emilio, bug 1440442): This is a hackaround to avoid flickering due the
|
|
// lack of non-http image caching in imagelib (bug 1406134), which causes
|
|
// stuff like bug 1439285. Cleanest fix if that doesn't get fixed is bug
|
|
// 1440305, but that seems too risky, and a lot of work to do before 60.
|
|
//
|
|
// Once that's fixed, the "old style" argument to TriggerImageLoads can go
|
|
// away.
|
|
if (nsContentUtils::IsChromeDoc(&aDocument) && aOldImageRequest &&
|
|
aOldImageRequest->IsResolved() && DefinitelyEquals(*aOldImageRequest)) {
|
|
MOZ_ASSERT(aOldImageRequest->mDocGroup == aDocument.GetDocGroup());
|
|
MOZ_ASSERT(mModeFlags == aOldImageRequest->mModeFlags);
|
|
|
|
mDocGroup = aOldImageRequest->mDocGroup;
|
|
mImageValue = aOldImageRequest->mImageValue;
|
|
mRequestProxy = aOldImageRequest->mRequestProxy;
|
|
} else {
|
|
mDocGroup = aDocument.GetDocGroup();
|
|
imgRequestProxy* request = mImageValue->LoadImage(&aDocument);
|
|
bool isPrint = !!aDocument.GetOriginalDocument();
|
|
if (!isPrint) {
|
|
mRequestProxy = request;
|
|
} else if (request) {
|
|
request->GetStaticRequest(&aDocument, getter_AddRefs(mRequestProxy));
|
|
}
|
|
}
|
|
|
|
if (!mRequestProxy) {
|
|
// The URL resolution or image load failed.
|
|
return false;
|
|
}
|
|
|
|
if (mModeFlags & Mode::Track) {
|
|
mImageTracker = aDocument.ImageTracker();
|
|
}
|
|
|
|
MaybeTrackAndLock();
|
|
return true;
|
|
}
|
|
|
|
void nsStyleImageRequest::MaybeTrackAndLock() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(IsResolved());
|
|
MOZ_ASSERT(mRequestProxy);
|
|
|
|
if (mModeFlags & Mode::Track) {
|
|
MOZ_ASSERT(mImageTracker);
|
|
mImageTracker->Add(mRequestProxy);
|
|
} else {
|
|
MOZ_ASSERT(!mImageTracker);
|
|
mRequestProxy->LockImage();
|
|
}
|
|
}
|
|
|
|
bool nsStyleImageRequest::DefinitelyEquals(
|
|
const nsStyleImageRequest& aOther) const {
|
|
return DefinitelyEqualURIs(mImageValue, aOther.mImageValue);
|
|
}
|
|
|
|
// --------------------
|
|
// CachedBorderImageData
|
|
//
|
|
void CachedBorderImageData::SetCachedSVGViewportSize(
|
|
const mozilla::Maybe<nsSize>& aSVGViewportSize) {
|
|
mCachedSVGViewportSize = aSVGViewportSize;
|
|
}
|
|
|
|
const mozilla::Maybe<nsSize>&
|
|
CachedBorderImageData::GetCachedSVGViewportSize() {
|
|
return mCachedSVGViewportSize;
|
|
}
|
|
|
|
struct PurgeCachedImagesTask : mozilla::Runnable {
|
|
PurgeCachedImagesTask() : mozilla::Runnable("PurgeCachedImagesTask") {}
|
|
NS_IMETHOD Run() final {
|
|
mSubImages.Clear();
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMArray<imgIContainer> mSubImages;
|
|
};
|
|
|
|
void CachedBorderImageData::PurgeCachedImages() {
|
|
if (ServoStyleSet::IsInServoTraversal()) {
|
|
RefPtr<PurgeCachedImagesTask> task = new PurgeCachedImagesTask();
|
|
task->mSubImages.SwapElements(mSubImages);
|
|
// This will run the task immediately if we're already on the main thread,
|
|
// but that is fine.
|
|
NS_DispatchToMainThread(task.forget());
|
|
} else {
|
|
mSubImages.Clear();
|
|
}
|
|
}
|
|
|
|
void CachedBorderImageData::SetSubImage(uint8_t aIndex,
|
|
imgIContainer* aSubImage) {
|
|
mSubImages.ReplaceObjectAt(aSubImage, aIndex);
|
|
}
|
|
|
|
imgIContainer* CachedBorderImageData::GetSubImage(uint8_t aIndex) {
|
|
imgIContainer* subImage = nullptr;
|
|
if (aIndex < mSubImages.Count()) subImage = mSubImages[aIndex];
|
|
return subImage;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleImage
|
|
//
|
|
|
|
nsStyleImage::nsStyleImage()
|
|
: mType(eStyleImageType_Null), mImage(nullptr), mCropRect(nullptr) {
|
|
MOZ_COUNT_CTOR(nsStyleImage);
|
|
}
|
|
|
|
nsStyleImage::~nsStyleImage() {
|
|
MOZ_COUNT_DTOR(nsStyleImage);
|
|
if (mType != eStyleImageType_Null) {
|
|
SetNull();
|
|
}
|
|
}
|
|
|
|
nsStyleImage::nsStyleImage(const nsStyleImage& aOther)
|
|
: mType(eStyleImageType_Null), mCropRect(nullptr) {
|
|
// We need our own copy constructor because we don't want
|
|
// to copy the reference count
|
|
MOZ_COUNT_CTOR(nsStyleImage);
|
|
DoCopy(aOther);
|
|
}
|
|
|
|
nsStyleImage& nsStyleImage::operator=(const nsStyleImage& aOther) {
|
|
if (this != &aOther) {
|
|
DoCopy(aOther);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
void nsStyleImage::DoCopy(const nsStyleImage& aOther) {
|
|
SetNull();
|
|
|
|
if (aOther.mType == eStyleImageType_Image) {
|
|
SetImageRequest(do_AddRef(aOther.mImage));
|
|
} else if (aOther.mType == eStyleImageType_Gradient) {
|
|
SetGradientData(aOther.mGradient);
|
|
} else if (aOther.mType == eStyleImageType_Element) {
|
|
SetElementId(do_AddRef(aOther.mElementId));
|
|
} else if (aOther.mType == eStyleImageType_URL) {
|
|
SetURLValue(do_AddRef(aOther.mURLValue));
|
|
}
|
|
|
|
UniquePtr<nsStyleSides> cropRectCopy;
|
|
if (aOther.mCropRect) {
|
|
cropRectCopy = MakeUnique<nsStyleSides>(*aOther.mCropRect.get());
|
|
}
|
|
SetCropRect(std::move(cropRectCopy));
|
|
}
|
|
|
|
void nsStyleImage::SetNull() {
|
|
if (mType == eStyleImageType_Gradient) {
|
|
mGradient->Release();
|
|
} else if (mType == eStyleImageType_Image) {
|
|
NS_RELEASE(mImage);
|
|
} else if (mType == eStyleImageType_Element) {
|
|
NS_RELEASE(mElementId);
|
|
} else if (mType == eStyleImageType_URL) {
|
|
// FIXME: NS_RELEASE doesn't handle const gracefully (unlike RefPtr).
|
|
const_cast<css::URLValue*>(mURLValue)->Release();
|
|
mURLValue = nullptr;
|
|
}
|
|
|
|
mType = eStyleImageType_Null;
|
|
mCropRect = nullptr;
|
|
}
|
|
|
|
void nsStyleImage::SetImageRequest(
|
|
already_AddRefed<nsStyleImageRequest> aImage) {
|
|
RefPtr<nsStyleImageRequest> image = aImage;
|
|
|
|
if (mType != eStyleImageType_Null) {
|
|
SetNull();
|
|
}
|
|
|
|
if (image) {
|
|
mImage = image.forget().take();
|
|
mType = eStyleImageType_Image;
|
|
}
|
|
if (mCachedBIData) {
|
|
mCachedBIData->PurgeCachedImages();
|
|
}
|
|
}
|
|
|
|
void nsStyleImage::SetGradientData(nsStyleGradient* aGradient) {
|
|
if (aGradient) {
|
|
aGradient->AddRef();
|
|
}
|
|
|
|
if (mType != eStyleImageType_Null) {
|
|
SetNull();
|
|
}
|
|
|
|
if (aGradient) {
|
|
mGradient = aGradient;
|
|
mType = eStyleImageType_Gradient;
|
|
}
|
|
}
|
|
|
|
void nsStyleImage::SetElementId(already_AddRefed<nsAtom> aElementId) {
|
|
if (mType != eStyleImageType_Null) {
|
|
SetNull();
|
|
}
|
|
|
|
if (RefPtr<nsAtom> atom = aElementId) {
|
|
mElementId = atom.forget().take();
|
|
mType = eStyleImageType_Element;
|
|
}
|
|
}
|
|
|
|
void nsStyleImage::SetCropRect(UniquePtr<nsStyleSides> aCropRect) {
|
|
mCropRect = std::move(aCropRect);
|
|
}
|
|
|
|
void nsStyleImage::SetURLValue(already_AddRefed<const URLValue> aValue) {
|
|
RefPtr<const URLValue> value = aValue;
|
|
|
|
if (mType != eStyleImageType_Null) {
|
|
SetNull();
|
|
}
|
|
|
|
if (value) {
|
|
mURLValue = value.forget().take();
|
|
mType = eStyleImageType_URL;
|
|
}
|
|
}
|
|
|
|
static int32_t ConvertToPixelCoord(const nsStyleCoord& aCoord,
|
|
int32_t aPercentScale) {
|
|
double pixelValue;
|
|
switch (aCoord.GetUnit()) {
|
|
case eStyleUnit_Percent:
|
|
pixelValue = aCoord.GetPercentValue() * aPercentScale;
|
|
break;
|
|
case eStyleUnit_Factor:
|
|
pixelValue = aCoord.GetFactorValue();
|
|
break;
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("unexpected unit for image crop rect");
|
|
return 0;
|
|
}
|
|
MOZ_ASSERT(pixelValue >= 0, "we ensured non-negative while parsing");
|
|
pixelValue = std::min(pixelValue, double(INT32_MAX)); // avoid overflow
|
|
return NS_lround(pixelValue);
|
|
}
|
|
|
|
already_AddRefed<nsIURI> nsStyleImageRequest::GetImageURI() const {
|
|
nsCOMPtr<nsIURI> uri;
|
|
|
|
if (mRequestProxy) {
|
|
mRequestProxy->GetURI(getter_AddRefs(uri));
|
|
if (uri) {
|
|
return uri.forget();
|
|
}
|
|
}
|
|
|
|
// If we had some problem resolving the mRequestProxy, use the URL stored
|
|
// in the mImageValue.
|
|
if (!mImageValue) {
|
|
return nullptr;
|
|
}
|
|
|
|
uri = mImageValue->GetURI();
|
|
return uri.forget();
|
|
}
|
|
|
|
bool nsStyleImage::ComputeActualCropRect(nsIntRect& aActualCropRect,
|
|
bool* aIsEntireImage) const {
|
|
MOZ_ASSERT(mType == eStyleImageType_Image,
|
|
"This function is designed to be used only when mType"
|
|
"is eStyleImageType_Image.");
|
|
|
|
imgRequestProxy* req = GetImageData();
|
|
if (!req) {
|
|
return false;
|
|
}
|
|
|
|
nsCOMPtr<imgIContainer> imageContainer;
|
|
req->GetImage(getter_AddRefs(imageContainer));
|
|
if (!imageContainer) {
|
|
return false;
|
|
}
|
|
|
|
nsIntSize imageSize;
|
|
imageContainer->GetWidth(&imageSize.width);
|
|
imageContainer->GetHeight(&imageSize.height);
|
|
if (imageSize.width <= 0 || imageSize.height <= 0) {
|
|
return false;
|
|
}
|
|
|
|
int32_t left = ConvertToPixelCoord(mCropRect->GetLeft(), imageSize.width);
|
|
int32_t top = ConvertToPixelCoord(mCropRect->GetTop(), imageSize.height);
|
|
int32_t right = ConvertToPixelCoord(mCropRect->GetRight(), imageSize.width);
|
|
int32_t bottom =
|
|
ConvertToPixelCoord(mCropRect->GetBottom(), imageSize.height);
|
|
|
|
// IntersectRect() returns an empty rect if we get negative width or height
|
|
nsIntRect cropRect(left, top, right - left, bottom - top);
|
|
nsIntRect imageRect(nsIntPoint(0, 0), imageSize);
|
|
aActualCropRect.IntersectRect(imageRect, cropRect);
|
|
|
|
if (aIsEntireImage) {
|
|
*aIsEntireImage = aActualCropRect.IsEqualInterior(imageRect);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool nsStyleImage::StartDecoding() const {
|
|
if (mType == eStyleImageType_Image) {
|
|
imgRequestProxy* req = GetImageData();
|
|
if (!req) {
|
|
return false;
|
|
}
|
|
return req->StartDecodingWithResult(imgIContainer::FLAG_ASYNC_NOTIFY);
|
|
}
|
|
// null image types always return false from IsComplete, so we do the same
|
|
// here.
|
|
return mType != eStyleImageType_Null ? true : false;
|
|
}
|
|
|
|
bool nsStyleImage::IsOpaque() const {
|
|
if (!IsComplete()) {
|
|
return false;
|
|
}
|
|
|
|
if (mType == eStyleImageType_Gradient) {
|
|
return mGradient->IsOpaque();
|
|
}
|
|
|
|
if (mType == eStyleImageType_Element || mType == eStyleImageType_URL) {
|
|
return false;
|
|
}
|
|
|
|
MOZ_ASSERT(mType == eStyleImageType_Image, "unexpected image type");
|
|
MOZ_ASSERT(GetImageData(), "should've returned earlier above");
|
|
|
|
nsCOMPtr<imgIContainer> imageContainer;
|
|
GetImageData()->GetImage(getter_AddRefs(imageContainer));
|
|
MOZ_ASSERT(imageContainer, "IsComplete() said image container is ready");
|
|
|
|
// Check if the crop region of the image is opaque.
|
|
if (imageContainer->WillDrawOpaqueNow()) {
|
|
if (!mCropRect) {
|
|
return true;
|
|
}
|
|
|
|
// Must make sure if mCropRect contains at least a pixel.
|
|
// XXX Is this optimization worth it? Maybe I should just return false.
|
|
nsIntRect actualCropRect;
|
|
return ComputeActualCropRect(actualCropRect) && !actualCropRect.IsEmpty();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool nsStyleImage::IsComplete() const {
|
|
switch (mType) {
|
|
case eStyleImageType_Null:
|
|
return false;
|
|
case eStyleImageType_Gradient:
|
|
case eStyleImageType_Element:
|
|
case eStyleImageType_URL:
|
|
return true;
|
|
case eStyleImageType_Image: {
|
|
if (!IsResolved()) {
|
|
return false;
|
|
}
|
|
imgRequestProxy* req = GetImageData();
|
|
if (!req) {
|
|
return false;
|
|
}
|
|
uint32_t status = imgIRequest::STATUS_ERROR;
|
|
return NS_SUCCEEDED(req->GetImageStatus(&status)) &&
|
|
(status & imgIRequest::STATUS_SIZE_AVAILABLE) &&
|
|
(status & imgIRequest::STATUS_FRAME_COMPLETE);
|
|
}
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("unexpected image type");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool nsStyleImage::IsLoaded() const {
|
|
switch (mType) {
|
|
case eStyleImageType_Null:
|
|
return false;
|
|
case eStyleImageType_Gradient:
|
|
case eStyleImageType_Element:
|
|
case eStyleImageType_URL:
|
|
return true;
|
|
case eStyleImageType_Image: {
|
|
imgRequestProxy* req = GetImageData();
|
|
if (!req) {
|
|
return false;
|
|
}
|
|
uint32_t status = imgIRequest::STATUS_ERROR;
|
|
return NS_SUCCEEDED(req->GetImageStatus(&status)) &&
|
|
!(status & imgIRequest::STATUS_ERROR) &&
|
|
(status & imgIRequest::STATUS_LOAD_COMPLETE);
|
|
}
|
|
default:
|
|
MOZ_ASSERT_UNREACHABLE("unexpected image type");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static inline bool EqualRects(const UniquePtr<nsStyleSides>& aRect1,
|
|
const UniquePtr<nsStyleSides>& aRect2) {
|
|
return aRect1 == aRect2 || /* handles null== null, and optimize */
|
|
(aRect1 && aRect2 && *aRect1 == *aRect2);
|
|
}
|
|
|
|
bool nsStyleImage::operator==(const nsStyleImage& aOther) const {
|
|
if (mType != aOther.mType) {
|
|
return false;
|
|
}
|
|
|
|
if (!EqualRects(mCropRect, aOther.mCropRect)) {
|
|
return false;
|
|
}
|
|
|
|
if (mType == eStyleImageType_Image) {
|
|
return DefinitelyEqualImages(mImage, aOther.mImage);
|
|
}
|
|
|
|
if (mType == eStyleImageType_Gradient) {
|
|
return *mGradient == *aOther.mGradient;
|
|
}
|
|
|
|
if (mType == eStyleImageType_Element) {
|
|
return mElementId == aOther.mElementId;
|
|
}
|
|
|
|
if (mType == eStyleImageType_URL) {
|
|
return DefinitelyEqualURIs(mURLValue, aOther.mURLValue);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void nsStyleImage::PurgeCacheForViewportChange(
|
|
const mozilla::Maybe<nsSize>& aSVGViewportSize,
|
|
const bool aHasIntrinsicRatio) const {
|
|
EnsureCachedBIData();
|
|
|
|
// If we're redrawing with a different viewport-size than we used for our
|
|
// cached subimages, then we can't trust that our subimages are valid;
|
|
// any percent sizes/positions in our SVG doc may be different now. Purge!
|
|
// (We don't have to purge if the SVG document has an intrinsic ratio,
|
|
// though, because the actual size of elements in SVG documant's coordinate
|
|
// axis are fixed in this case.)
|
|
if (aSVGViewportSize != mCachedBIData->GetCachedSVGViewportSize() &&
|
|
!aHasIntrinsicRatio) {
|
|
mCachedBIData->PurgeCachedImages();
|
|
mCachedBIData->SetCachedSVGViewportSize(aSVGViewportSize);
|
|
}
|
|
}
|
|
|
|
already_AddRefed<nsIURI> nsStyleImage::GetImageURI() const {
|
|
if (mType != eStyleImageType_Image) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsCOMPtr<nsIURI> uri = mImage->GetImageURI();
|
|
return uri.forget();
|
|
}
|
|
|
|
const css::URLValue* nsStyleImage::GetURLValue() const {
|
|
if (mType == eStyleImageType_Image) {
|
|
return mImage->GetImageValue();
|
|
}
|
|
if (mType == eStyleImageType_URL) {
|
|
return mURLValue;
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleImageLayers
|
|
//
|
|
|
|
const nsCSSPropertyID nsStyleImageLayers::kBackgroundLayerTable[] = {
|
|
eCSSProperty_background, // shorthand
|
|
eCSSProperty_background_color, // color
|
|
eCSSProperty_background_image, // image
|
|
eCSSProperty_background_repeat, // repeat
|
|
eCSSProperty_background_position_x, // positionX
|
|
eCSSProperty_background_position_y, // positionY
|
|
eCSSProperty_background_clip, // clip
|
|
eCSSProperty_background_origin, // origin
|
|
eCSSProperty_background_size, // size
|
|
eCSSProperty_background_attachment, // attachment
|
|
eCSSProperty_UNKNOWN, // maskMode
|
|
eCSSProperty_UNKNOWN // composite
|
|
};
|
|
|
|
const nsCSSPropertyID nsStyleImageLayers::kMaskLayerTable[] = {
|
|
eCSSProperty_mask, // shorthand
|
|
eCSSProperty_UNKNOWN, // color
|
|
eCSSProperty_mask_image, // image
|
|
eCSSProperty_mask_repeat, // repeat
|
|
eCSSProperty_mask_position_x, // positionX
|
|
eCSSProperty_mask_position_y, // positionY
|
|
eCSSProperty_mask_clip, // clip
|
|
eCSSProperty_mask_origin, // origin
|
|
eCSSProperty_mask_size, // size
|
|
eCSSProperty_UNKNOWN, // attachment
|
|
eCSSProperty_mask_mode, // maskMode
|
|
eCSSProperty_mask_composite // composite
|
|
};
|
|
|
|
nsStyleImageLayers::nsStyleImageLayers(nsStyleImageLayers::LayerType aType)
|
|
: mAttachmentCount(1),
|
|
mClipCount(1),
|
|
mOriginCount(1),
|
|
mRepeatCount(1),
|
|
mPositionXCount(1),
|
|
mPositionYCount(1),
|
|
mImageCount(1),
|
|
mSizeCount(1),
|
|
mMaskModeCount(1),
|
|
mBlendModeCount(1),
|
|
mCompositeCount(1),
|
|
mLayers(nsStyleAutoArray<Layer>::WITH_SINGLE_INITIAL_ELEMENT) {
|
|
MOZ_COUNT_CTOR(nsStyleImageLayers);
|
|
|
|
// Ensure first layer is initialized as specified layer type
|
|
mLayers[0].Initialize(aType);
|
|
}
|
|
|
|
nsStyleImageLayers::nsStyleImageLayers(const nsStyleImageLayers& aSource)
|
|
: mAttachmentCount(aSource.mAttachmentCount),
|
|
mClipCount(aSource.mClipCount),
|
|
mOriginCount(aSource.mOriginCount),
|
|
mRepeatCount(aSource.mRepeatCount),
|
|
mPositionXCount(aSource.mPositionXCount),
|
|
mPositionYCount(aSource.mPositionYCount),
|
|
mImageCount(aSource.mImageCount),
|
|
mSizeCount(aSource.mSizeCount),
|
|
mMaskModeCount(aSource.mMaskModeCount),
|
|
mBlendModeCount(aSource.mBlendModeCount),
|
|
mCompositeCount(aSource.mCompositeCount),
|
|
mLayers(aSource.mLayers) // deep copy
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleImageLayers);
|
|
// If the deep copy of mLayers failed, truncate the counts.
|
|
uint32_t count = mLayers.Length();
|
|
if (count != aSource.mLayers.Length()) {
|
|
NS_WARNING("truncating counts due to out-of-memory");
|
|
mAttachmentCount = std::max(mAttachmentCount, count);
|
|
mClipCount = std::max(mClipCount, count);
|
|
mOriginCount = std::max(mOriginCount, count);
|
|
mRepeatCount = std::max(mRepeatCount, count);
|
|
mPositionXCount = std::max(mPositionXCount, count);
|
|
mPositionYCount = std::max(mPositionYCount, count);
|
|
mImageCount = std::max(mImageCount, count);
|
|
mSizeCount = std::max(mSizeCount, count);
|
|
mMaskModeCount = std::max(mMaskModeCount, count);
|
|
mBlendModeCount = std::max(mBlendModeCount, count);
|
|
mCompositeCount = std::max(mCompositeCount, count);
|
|
}
|
|
}
|
|
|
|
nsChangeHint nsStyleImageLayers::CalcDifference(
|
|
const nsStyleImageLayers& aNewLayers,
|
|
nsStyleImageLayers::LayerType aType) const {
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
const nsStyleImageLayers& moreLayers =
|
|
mImageCount > aNewLayers.mImageCount ? *this : aNewLayers;
|
|
const nsStyleImageLayers& lessLayers =
|
|
mImageCount > aNewLayers.mImageCount ? aNewLayers : *this;
|
|
|
|
NS_FOR_VISIBLE_IMAGE_LAYERS_BACK_TO_FRONT(i, moreLayers) {
|
|
if (i < lessLayers.mImageCount) {
|
|
nsChangeHint layerDifference =
|
|
moreLayers.mLayers[i].CalcDifference(lessLayers.mLayers[i]);
|
|
hint |= layerDifference;
|
|
if (layerDifference && ((moreLayers.mLayers[i].mImage.GetType() ==
|
|
eStyleImageType_Element) ||
|
|
(lessLayers.mLayers[i].mImage.GetType() ==
|
|
eStyleImageType_Element))) {
|
|
hint |= nsChangeHint_UpdateEffects | nsChangeHint_RepaintFrame;
|
|
}
|
|
} else {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
if (moreLayers.mLayers[i].mImage.GetType() == eStyleImageType_Element) {
|
|
hint |= nsChangeHint_UpdateEffects | nsChangeHint_RepaintFrame;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (aType == nsStyleImageLayers::LayerType::Mask &&
|
|
mImageCount != aNewLayers.mImageCount) {
|
|
hint |= nsChangeHint_UpdateEffects;
|
|
}
|
|
|
|
if (hint) {
|
|
return hint;
|
|
}
|
|
|
|
if (mAttachmentCount != aNewLayers.mAttachmentCount ||
|
|
mBlendModeCount != aNewLayers.mBlendModeCount ||
|
|
mClipCount != aNewLayers.mClipCount ||
|
|
mCompositeCount != aNewLayers.mCompositeCount ||
|
|
mMaskModeCount != aNewLayers.mMaskModeCount ||
|
|
mOriginCount != aNewLayers.mOriginCount ||
|
|
mRepeatCount != aNewLayers.mRepeatCount ||
|
|
mPositionXCount != aNewLayers.mPositionXCount ||
|
|
mPositionYCount != aNewLayers.mPositionYCount ||
|
|
mSizeCount != aNewLayers.mSizeCount) {
|
|
hint |= nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
return hint;
|
|
}
|
|
|
|
nsStyleImageLayers& nsStyleImageLayers::operator=(
|
|
const nsStyleImageLayers& aOther) {
|
|
mAttachmentCount = aOther.mAttachmentCount;
|
|
mClipCount = aOther.mClipCount;
|
|
mOriginCount = aOther.mOriginCount;
|
|
mRepeatCount = aOther.mRepeatCount;
|
|
mPositionXCount = aOther.mPositionXCount;
|
|
mPositionYCount = aOther.mPositionYCount;
|
|
mImageCount = aOther.mImageCount;
|
|
mSizeCount = aOther.mSizeCount;
|
|
mMaskModeCount = aOther.mMaskModeCount;
|
|
mBlendModeCount = aOther.mBlendModeCount;
|
|
mCompositeCount = aOther.mCompositeCount;
|
|
mLayers = aOther.mLayers;
|
|
|
|
uint32_t count = mLayers.Length();
|
|
if (count != aOther.mLayers.Length()) {
|
|
NS_WARNING("truncating counts due to out-of-memory");
|
|
mAttachmentCount = std::max(mAttachmentCount, count);
|
|
mClipCount = std::max(mClipCount, count);
|
|
mOriginCount = std::max(mOriginCount, count);
|
|
mRepeatCount = std::max(mRepeatCount, count);
|
|
mPositionXCount = std::max(mPositionXCount, count);
|
|
mPositionYCount = std::max(mPositionYCount, count);
|
|
mImageCount = std::max(mImageCount, count);
|
|
mSizeCount = std::max(mSizeCount, count);
|
|
mMaskModeCount = std::max(mMaskModeCount, count);
|
|
mBlendModeCount = std::max(mBlendModeCount, count);
|
|
mCompositeCount = std::max(mCompositeCount, count);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
nsStyleImageLayers& nsStyleImageLayers::operator=(nsStyleImageLayers&& aOther) {
|
|
mAttachmentCount = aOther.mAttachmentCount;
|
|
mClipCount = aOther.mClipCount;
|
|
mOriginCount = aOther.mOriginCount;
|
|
mRepeatCount = aOther.mRepeatCount;
|
|
mPositionXCount = aOther.mPositionXCount;
|
|
mPositionYCount = aOther.mPositionYCount;
|
|
mImageCount = aOther.mImageCount;
|
|
mSizeCount = aOther.mSizeCount;
|
|
mMaskModeCount = aOther.mMaskModeCount;
|
|
mBlendModeCount = aOther.mBlendModeCount;
|
|
mCompositeCount = aOther.mCompositeCount;
|
|
mLayers = std::move(aOther.mLayers);
|
|
|
|
uint32_t count = mLayers.Length();
|
|
if (count != aOther.mLayers.Length()) {
|
|
NS_WARNING("truncating counts due to out-of-memory");
|
|
mAttachmentCount = std::max(mAttachmentCount, count);
|
|
mClipCount = std::max(mClipCount, count);
|
|
mOriginCount = std::max(mOriginCount, count);
|
|
mRepeatCount = std::max(mRepeatCount, count);
|
|
mPositionXCount = std::max(mPositionXCount, count);
|
|
mPositionYCount = std::max(mPositionYCount, count);
|
|
mImageCount = std::max(mImageCount, count);
|
|
mSizeCount = std::max(mSizeCount, count);
|
|
mMaskModeCount = std::max(mMaskModeCount, count);
|
|
mBlendModeCount = std::max(mBlendModeCount, count);
|
|
mCompositeCount = std::max(mCompositeCount, count);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
bool nsStyleImageLayers::operator==(const nsStyleImageLayers& aOther) const {
|
|
if (mAttachmentCount != aOther.mAttachmentCount ||
|
|
mClipCount != aOther.mClipCount || mOriginCount != aOther.mOriginCount ||
|
|
mRepeatCount != aOther.mRepeatCount ||
|
|
mPositionXCount != aOther.mPositionXCount ||
|
|
mPositionYCount != aOther.mPositionYCount ||
|
|
mImageCount != aOther.mImageCount || mSizeCount != aOther.mSizeCount ||
|
|
mMaskModeCount != aOther.mMaskModeCount ||
|
|
mBlendModeCount != aOther.mBlendModeCount) {
|
|
return false;
|
|
}
|
|
|
|
if (mLayers.Length() != aOther.mLayers.Length()) {
|
|
return false;
|
|
}
|
|
|
|
for (uint32_t i = 0; i < mLayers.Length(); i++) {
|
|
if (mLayers[i].mPosition != aOther.mLayers[i].mPosition ||
|
|
!DefinitelyEqualURIs(mLayers[i].mImage.GetURLValue(),
|
|
aOther.mLayers[i].mImage.GetURLValue()) ||
|
|
mLayers[i].mImage != aOther.mLayers[i].mImage ||
|
|
mLayers[i].mSize != aOther.mLayers[i].mSize ||
|
|
mLayers[i].mClip != aOther.mLayers[i].mClip ||
|
|
mLayers[i].mOrigin != aOther.mLayers[i].mOrigin ||
|
|
mLayers[i].mAttachment != aOther.mLayers[i].mAttachment ||
|
|
mLayers[i].mBlendMode != aOther.mLayers[i].mBlendMode ||
|
|
mLayers[i].mComposite != aOther.mLayers[i].mComposite ||
|
|
mLayers[i].mMaskMode != aOther.mLayers[i].mMaskMode ||
|
|
mLayers[i].mRepeat != aOther.mLayers[i].mRepeat) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool nsStyleImageLayers::IsInitialPositionForLayerType(Position aPosition,
|
|
LayerType aType) {
|
|
return aPosition == Position::FromPercentage(0.);
|
|
}
|
|
|
|
static bool SizeDependsOnPositioningAreaSize(const StyleBackgroundSize& aSize,
|
|
const nsStyleImage& aImage) {
|
|
MOZ_ASSERT(aImage.GetType() != eStyleImageType_Null,
|
|
"caller should have handled this");
|
|
|
|
// Contain and cover straightforwardly depend on frame size.
|
|
if (aSize.IsCover() || aSize.IsContain()) {
|
|
return true;
|
|
}
|
|
|
|
MOZ_ASSERT(aSize.IsExplicitSize());
|
|
auto& size = aSize.explicit_size;
|
|
|
|
// If either dimension contains a non-zero percentage, rendering for that
|
|
// dimension straightforwardly depends on frame size.
|
|
if (size.width.HasPercent() || size.height.HasPercent()) {
|
|
return true;
|
|
}
|
|
|
|
// If both dimensions are fixed lengths, there's no dependency.
|
|
if (!size.width.IsAuto() && !size.height.IsAuto()) {
|
|
return false;
|
|
}
|
|
|
|
nsStyleImageType type = aImage.GetType();
|
|
|
|
// Gradient rendering depends on frame size when auto is involved because
|
|
// gradients have no intrinsic ratio or dimensions, and therefore the relevant
|
|
// dimension is "treat[ed] as 100%".
|
|
if (type == eStyleImageType_Gradient) {
|
|
return true;
|
|
}
|
|
|
|
// XXX Element rendering for auto or fixed length doesn't depend on frame size
|
|
// according to the spec. However, we don't implement the spec yet, so
|
|
// for now we bail and say element() plus auto affects ultimate size.
|
|
if (type == eStyleImageType_Element) {
|
|
return true;
|
|
}
|
|
|
|
if (type == eStyleImageType_Image) {
|
|
nsCOMPtr<imgIContainer> imgContainer;
|
|
if (imgRequestProxy* req = aImage.GetImageData()) {
|
|
req->GetImage(getter_AddRefs(imgContainer));
|
|
}
|
|
if (imgContainer) {
|
|
CSSIntSize imageSize;
|
|
nsSize imageRatio;
|
|
bool hasWidth, hasHeight;
|
|
nsLayoutUtils::ComputeSizeForDrawing(imgContainer, imageSize, imageRatio,
|
|
hasWidth, hasHeight);
|
|
|
|
// If the image has a fixed width and height, rendering never depends on
|
|
// the frame size.
|
|
if (hasWidth && hasHeight) {
|
|
return false;
|
|
}
|
|
|
|
// If the image has an intrinsic ratio, rendering will depend on frame
|
|
// size when background-size is all auto.
|
|
if (imageRatio != nsSize(0, 0)) {
|
|
return size.width.IsAuto() == size.height.IsAuto();
|
|
}
|
|
|
|
// Otherwise, rendering depends on frame size when the image dimensions
|
|
// and background-size don't complement each other.
|
|
return !(hasWidth && size.width.IsLengthPercentage()) &&
|
|
!(hasHeight && size.height.IsLengthPercentage());
|
|
}
|
|
} else {
|
|
MOZ_ASSERT_UNREACHABLE("missed an enum value");
|
|
}
|
|
|
|
// Passed the gauntlet: no dependency.
|
|
return false;
|
|
}
|
|
|
|
nsStyleImageLayers::Layer::Layer()
|
|
: mSize(StyleBackgroundSize::ExplicitSize(LengthPercentageOrAuto::Auto(),
|
|
LengthPercentageOrAuto::Auto())),
|
|
mClip(StyleGeometryBox::BorderBox),
|
|
mAttachment(StyleImageLayerAttachment::Scroll),
|
|
mBlendMode(NS_STYLE_BLEND_NORMAL),
|
|
mComposite(NS_STYLE_MASK_COMPOSITE_ADD),
|
|
mMaskMode(NS_STYLE_MASK_MODE_MATCH_SOURCE) {
|
|
mImage.SetNull();
|
|
}
|
|
|
|
nsStyleImageLayers::Layer::~Layer() {}
|
|
|
|
void nsStyleImageLayers::Layer::Initialize(
|
|
nsStyleImageLayers::LayerType aType) {
|
|
mRepeat.SetInitialValues();
|
|
|
|
mPosition = Position::FromPercentage(0.);
|
|
|
|
if (aType == LayerType::Background) {
|
|
mOrigin = StyleGeometryBox::PaddingBox;
|
|
} else {
|
|
MOZ_ASSERT(aType == LayerType::Mask, "unsupported layer type.");
|
|
mOrigin = StyleGeometryBox::BorderBox;
|
|
}
|
|
}
|
|
|
|
bool nsStyleImageLayers::Layer::
|
|
RenderingMightDependOnPositioningAreaSizeChange() const {
|
|
// Do we even have an image?
|
|
if (mImage.IsEmpty()) {
|
|
return false;
|
|
}
|
|
|
|
return mPosition.DependsOnPositioningAreaSize() ||
|
|
SizeDependsOnPositioningAreaSize(mSize, mImage) ||
|
|
mRepeat.DependsOnPositioningAreaSize();
|
|
}
|
|
|
|
bool nsStyleImageLayers::Layer::operator==(const Layer& aOther) const {
|
|
return mAttachment == aOther.mAttachment && mClip == aOther.mClip &&
|
|
mOrigin == aOther.mOrigin && mRepeat == aOther.mRepeat &&
|
|
mBlendMode == aOther.mBlendMode && mPosition == aOther.mPosition &&
|
|
mSize == aOther.mSize && mImage == aOther.mImage &&
|
|
mMaskMode == aOther.mMaskMode && mComposite == aOther.mComposite;
|
|
}
|
|
|
|
template <class ComputedValueItem>
|
|
static void FillImageLayerList(
|
|
nsStyleAutoArray<nsStyleImageLayers::Layer>& aLayers,
|
|
ComputedValueItem nsStyleImageLayers::Layer::*aResultLocation,
|
|
uint32_t aItemCount, uint32_t aFillCount) {
|
|
MOZ_ASSERT(aFillCount <= aLayers.Length(), "unexpected array length");
|
|
for (uint32_t sourceLayer = 0, destLayer = aItemCount; destLayer < aFillCount;
|
|
++sourceLayer, ++destLayer) {
|
|
aLayers[destLayer].*aResultLocation = aLayers[sourceLayer].*aResultLocation;
|
|
}
|
|
}
|
|
|
|
// The same as FillImageLayerList, but for values stored in
|
|
// layer.mPosition.*aResultLocation instead of layer.*aResultLocation.
|
|
static void FillImageLayerPositionCoordList(
|
|
nsStyleAutoArray<nsStyleImageLayers::Layer>& aLayers,
|
|
LengthPercentage Position::*aResultLocation, uint32_t aItemCount,
|
|
uint32_t aFillCount) {
|
|
MOZ_ASSERT(aFillCount <= aLayers.Length(), "unexpected array length");
|
|
for (uint32_t sourceLayer = 0, destLayer = aItemCount; destLayer < aFillCount;
|
|
++sourceLayer, ++destLayer) {
|
|
aLayers[destLayer].mPosition.*aResultLocation =
|
|
aLayers[sourceLayer].mPosition.*aResultLocation;
|
|
}
|
|
}
|
|
|
|
void nsStyleImageLayers::FillAllLayers(uint32_t aMaxItemCount) {
|
|
// Delete any extra items. We need to keep layers in which any
|
|
// property was specified.
|
|
mLayers.TruncateLengthNonZero(aMaxItemCount);
|
|
|
|
uint32_t fillCount = mImageCount;
|
|
FillImageLayerList(mLayers, &Layer::mImage, mImageCount, fillCount);
|
|
FillImageLayerList(mLayers, &Layer::mRepeat, mRepeatCount, fillCount);
|
|
FillImageLayerList(mLayers, &Layer::mAttachment, mAttachmentCount, fillCount);
|
|
FillImageLayerList(mLayers, &Layer::mClip, mClipCount, fillCount);
|
|
FillImageLayerList(mLayers, &Layer::mBlendMode, mBlendModeCount, fillCount);
|
|
FillImageLayerList(mLayers, &Layer::mOrigin, mOriginCount, fillCount);
|
|
FillImageLayerPositionCoordList(mLayers, &Position::horizontal,
|
|
mPositionXCount, fillCount);
|
|
FillImageLayerPositionCoordList(mLayers, &Position::vertical, mPositionYCount,
|
|
fillCount);
|
|
FillImageLayerList(mLayers, &Layer::mSize, mSizeCount, fillCount);
|
|
FillImageLayerList(mLayers, &Layer::mMaskMode, mMaskModeCount, fillCount);
|
|
FillImageLayerList(mLayers, &Layer::mComposite, mCompositeCount, fillCount);
|
|
}
|
|
|
|
nsChangeHint nsStyleImageLayers::Layer::CalcDifference(
|
|
const nsStyleImageLayers::Layer& aNewLayer) const {
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
if (!DefinitelyEqualURIs(mImage.GetURLValue(),
|
|
aNewLayer.mImage.GetURLValue())) {
|
|
hint |= nsChangeHint_RepaintFrame | nsChangeHint_UpdateEffects;
|
|
} else if (mAttachment != aNewLayer.mAttachment || mClip != aNewLayer.mClip ||
|
|
mOrigin != aNewLayer.mOrigin || mRepeat != aNewLayer.mRepeat ||
|
|
mBlendMode != aNewLayer.mBlendMode || mSize != aNewLayer.mSize ||
|
|
mImage != aNewLayer.mImage || mMaskMode != aNewLayer.mMaskMode ||
|
|
mComposite != aNewLayer.mComposite) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (mPosition != aNewLayer.mPosition) {
|
|
hint |= nsChangeHint_UpdateBackgroundPosition;
|
|
}
|
|
|
|
return hint;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleBackground
|
|
//
|
|
|
|
nsStyleBackground::nsStyleBackground(const Document& aDocument)
|
|
: mImage(nsStyleImageLayers::LayerType::Background),
|
|
mBackgroundColor(StyleComplexColor::Transparent()) {
|
|
MOZ_COUNT_CTOR(nsStyleBackground);
|
|
}
|
|
|
|
nsStyleBackground::nsStyleBackground(const nsStyleBackground& aSource)
|
|
: mImage(aSource.mImage), mBackgroundColor(aSource.mBackgroundColor) {
|
|
MOZ_COUNT_CTOR(nsStyleBackground);
|
|
}
|
|
|
|
nsStyleBackground::~nsStyleBackground() { MOZ_COUNT_DTOR(nsStyleBackground); }
|
|
|
|
void nsStyleBackground::TriggerImageLoads(Document& aDocument,
|
|
const nsStyleBackground* aOldStyle) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
mImage.ResolveImages(aDocument, aOldStyle ? &aOldStyle->mImage : nullptr);
|
|
}
|
|
|
|
nsChangeHint nsStyleBackground::CalcDifference(
|
|
const nsStyleBackground& aNewData) const {
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
if (mBackgroundColor != aNewData.mBackgroundColor) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
hint |= mImage.CalcDifference(aNewData.mImage,
|
|
nsStyleImageLayers::LayerType::Background);
|
|
|
|
return hint;
|
|
}
|
|
|
|
bool nsStyleBackground::HasFixedBackground(nsIFrame* aFrame) const {
|
|
NS_FOR_VISIBLE_IMAGE_LAYERS_BACK_TO_FRONT(i, mImage) {
|
|
const nsStyleImageLayers::Layer& layer = mImage.mLayers[i];
|
|
if (layer.mAttachment == StyleImageLayerAttachment::Fixed &&
|
|
!layer.mImage.IsEmpty() && !nsLayoutUtils::IsTransformed(aFrame)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
nscolor nsStyleBackground::BackgroundColor(const nsIFrame* aFrame) const {
|
|
return mBackgroundColor.CalcColor(aFrame);
|
|
}
|
|
|
|
nscolor nsStyleBackground::BackgroundColor(
|
|
mozilla::ComputedStyle* aStyle) const {
|
|
return mBackgroundColor.CalcColor(aStyle);
|
|
}
|
|
|
|
bool nsStyleBackground::IsTransparent(const nsIFrame* aFrame) const {
|
|
return IsTransparent(aFrame->Style());
|
|
}
|
|
|
|
bool nsStyleBackground::IsTransparent(mozilla::ComputedStyle* aStyle) const {
|
|
return BottomLayer().mImage.IsEmpty() && mImage.mImageCount == 1 &&
|
|
NS_GET_A(BackgroundColor(aStyle)) == 0;
|
|
}
|
|
|
|
StyleTransition::StyleTransition(const StyleTransition& aCopy)
|
|
: mTimingFunction(aCopy.mTimingFunction),
|
|
mDuration(aCopy.mDuration),
|
|
mDelay(aCopy.mDelay),
|
|
mProperty(aCopy.mProperty),
|
|
mUnknownProperty(aCopy.mUnknownProperty) {}
|
|
|
|
void StyleTransition::SetInitialValues() {
|
|
mTimingFunction = nsTimingFunction(StyleTimingKeyword::Ease);
|
|
mDuration = 0.0;
|
|
mDelay = 0.0;
|
|
mProperty = eCSSPropertyExtra_all_properties;
|
|
}
|
|
|
|
bool StyleTransition::operator==(const StyleTransition& aOther) const {
|
|
return mTimingFunction == aOther.mTimingFunction &&
|
|
mDuration == aOther.mDuration && mDelay == aOther.mDelay &&
|
|
mProperty == aOther.mProperty &&
|
|
(mProperty != eCSSProperty_UNKNOWN ||
|
|
mUnknownProperty == aOther.mUnknownProperty);
|
|
}
|
|
|
|
StyleAnimation::StyleAnimation(const StyleAnimation& aCopy)
|
|
: mTimingFunction(aCopy.mTimingFunction),
|
|
mDuration(aCopy.mDuration),
|
|
mDelay(aCopy.mDelay),
|
|
mName(aCopy.mName),
|
|
mDirection(aCopy.mDirection),
|
|
mFillMode(aCopy.mFillMode),
|
|
mPlayState(aCopy.mPlayState),
|
|
mIterationCount(aCopy.mIterationCount) {}
|
|
|
|
void StyleAnimation::SetInitialValues() {
|
|
mTimingFunction = nsTimingFunction(StyleTimingKeyword::Ease);
|
|
mDuration = 0.0;
|
|
mDelay = 0.0;
|
|
mName = nsGkAtoms::_empty;
|
|
mDirection = dom::PlaybackDirection::Normal;
|
|
mFillMode = dom::FillMode::None;
|
|
mPlayState = StyleAnimationPlayState::Running;
|
|
mIterationCount = 1.0f;
|
|
}
|
|
|
|
bool StyleAnimation::operator==(const StyleAnimation& aOther) const {
|
|
return mTimingFunction == aOther.mTimingFunction &&
|
|
mDuration == aOther.mDuration && mDelay == aOther.mDelay &&
|
|
mName == aOther.mName && mDirection == aOther.mDirection &&
|
|
mFillMode == aOther.mFillMode && mPlayState == aOther.mPlayState &&
|
|
mIterationCount == aOther.mIterationCount;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleDisplay
|
|
//
|
|
nsStyleDisplay::nsStyleDisplay(const Document& aDocument)
|
|
: mDisplay(StyleDisplay::Inline),
|
|
mOriginalDisplay(StyleDisplay::Inline),
|
|
mContain(NS_STYLE_CONTAIN_NONE),
|
|
mAppearance(StyleAppearance::None),
|
|
mPosition(NS_STYLE_POSITION_STATIC),
|
|
mFloat(StyleFloat::None),
|
|
mOriginalFloat(StyleFloat::None),
|
|
mBreakType(StyleClear::None),
|
|
mBreakInside(StyleBreakWithin::Auto),
|
|
mBreakBefore(StyleBreakBetween::Auto),
|
|
mBreakAfter(StyleBreakBetween::Auto),
|
|
mOverflowX(StyleOverflow::Visible),
|
|
mOverflowY(StyleOverflow::Visible),
|
|
mOverflowClipBoxBlock(StyleOverflowClipBox::PaddingBox),
|
|
mOverflowClipBoxInline(StyleOverflowClipBox::PaddingBox),
|
|
mResize(StyleResize::None),
|
|
mOrient(StyleOrient::Inline),
|
|
mIsolation(NS_STYLE_ISOLATION_AUTO),
|
|
mTopLayer(NS_STYLE_TOP_LAYER_NONE),
|
|
mWillChangeBitField(0),
|
|
mTouchAction(NS_STYLE_TOUCH_ACTION_AUTO),
|
|
mScrollBehavior(NS_STYLE_SCROLL_BEHAVIOR_AUTO),
|
|
mOverscrollBehaviorX(StyleOverscrollBehavior::Auto),
|
|
mOverscrollBehaviorY(StyleOverscrollBehavior::Auto),
|
|
mOverflowAnchor(StyleOverflowAnchor::Auto),
|
|
mScrollSnapTypeX(StyleScrollSnapType::None),
|
|
mScrollSnapTypeY(StyleScrollSnapType::None),
|
|
mScrollSnapPointsX(eStyleUnit_None),
|
|
mScrollSnapPointsY(eStyleUnit_None),
|
|
mScrollSnapDestination(
|
|
{LengthPercentage::Zero(), LengthPercentage::Zero()}),
|
|
mBackfaceVisibility(NS_STYLE_BACKFACE_VISIBILITY_VISIBLE),
|
|
mTransformStyle(NS_STYLE_TRANSFORM_STYLE_FLAT),
|
|
mTransformBox(StyleGeometryBox::BorderBox),
|
|
mTransformOrigin{
|
|
{0.5f, eStyleUnit_Percent}, // Transform is centered on origin
|
|
{0.5f, eStyleUnit_Percent},
|
|
{0, nsStyleCoord::CoordConstructor}},
|
|
mChildPerspective(eStyleUnit_None),
|
|
mPerspectiveOrigin{{0.5f, eStyleUnit_Percent},
|
|
{0.5f, eStyleUnit_Percent}},
|
|
mVerticalAlign(NS_STYLE_VERTICAL_ALIGN_BASELINE, eStyleUnit_Enumerated),
|
|
mTransitions(
|
|
nsStyleAutoArray<StyleTransition>::WITH_SINGLE_INITIAL_ELEMENT),
|
|
mTransitionTimingFunctionCount(1),
|
|
mTransitionDurationCount(1),
|
|
mTransitionDelayCount(1),
|
|
mTransitionPropertyCount(1),
|
|
mAnimations(
|
|
nsStyleAutoArray<StyleAnimation>::WITH_SINGLE_INITIAL_ELEMENT),
|
|
mAnimationTimingFunctionCount(1),
|
|
mAnimationDurationCount(1),
|
|
mAnimationDelayCount(1),
|
|
mAnimationNameCount(1),
|
|
mAnimationDirectionCount(1),
|
|
mAnimationFillModeCount(1),
|
|
mAnimationPlayStateCount(1),
|
|
mAnimationIterationCountCount(1),
|
|
mShapeMargin(LengthPercentage::Zero()) {
|
|
MOZ_COUNT_CTOR(nsStyleDisplay);
|
|
|
|
mTransitions[0].SetInitialValues();
|
|
mAnimations[0].SetInitialValues();
|
|
}
|
|
|
|
nsStyleDisplay::nsStyleDisplay(const nsStyleDisplay& aSource)
|
|
: mBinding(aSource.mBinding),
|
|
mDisplay(aSource.mDisplay),
|
|
mOriginalDisplay(aSource.mOriginalDisplay),
|
|
mContain(aSource.mContain),
|
|
mAppearance(aSource.mAppearance),
|
|
mPosition(aSource.mPosition),
|
|
mFloat(aSource.mFloat),
|
|
mOriginalFloat(aSource.mOriginalFloat),
|
|
mBreakType(aSource.mBreakType),
|
|
mBreakInside(aSource.mBreakInside),
|
|
mBreakBefore(aSource.mBreakBefore),
|
|
mBreakAfter(aSource.mBreakAfter),
|
|
mOverflowX(aSource.mOverflowX),
|
|
mOverflowY(aSource.mOverflowY),
|
|
mOverflowClipBoxBlock(aSource.mOverflowClipBoxBlock),
|
|
mOverflowClipBoxInline(aSource.mOverflowClipBoxInline),
|
|
mResize(aSource.mResize),
|
|
mOrient(aSource.mOrient),
|
|
mIsolation(aSource.mIsolation),
|
|
mTopLayer(aSource.mTopLayer),
|
|
mWillChangeBitField(aSource.mWillChangeBitField),
|
|
mWillChange(aSource.mWillChange),
|
|
mTouchAction(aSource.mTouchAction),
|
|
mScrollBehavior(aSource.mScrollBehavior),
|
|
mOverscrollBehaviorX(aSource.mOverscrollBehaviorX),
|
|
mOverscrollBehaviorY(aSource.mOverscrollBehaviorY),
|
|
mScrollSnapTypeX(aSource.mScrollSnapTypeX),
|
|
mScrollSnapTypeY(aSource.mScrollSnapTypeY),
|
|
mScrollSnapPointsX(aSource.mScrollSnapPointsX),
|
|
mScrollSnapPointsY(aSource.mScrollSnapPointsY),
|
|
mScrollSnapDestination(aSource.mScrollSnapDestination),
|
|
mScrollSnapCoordinate(aSource.mScrollSnapCoordinate),
|
|
mBackfaceVisibility(aSource.mBackfaceVisibility),
|
|
mTransformStyle(aSource.mTransformStyle),
|
|
mTransformBox(aSource.mTransformBox),
|
|
mSpecifiedTransform(aSource.mSpecifiedTransform),
|
|
mSpecifiedRotate(aSource.mSpecifiedRotate),
|
|
mSpecifiedTranslate(aSource.mSpecifiedTranslate),
|
|
mSpecifiedScale(aSource.mSpecifiedScale),
|
|
// We intentionally leave mIndividualTransform as null, is the caller's
|
|
// responsibility to call GenerateCombinedIndividualTransform when
|
|
// appropriate.
|
|
mMotion(aSource.mMotion ? MakeUnique<StyleMotion>(*aSource.mMotion)
|
|
: nullptr),
|
|
mTransformOrigin{aSource.mTransformOrigin[0], aSource.mTransformOrigin[1],
|
|
aSource.mTransformOrigin[2]},
|
|
mChildPerspective(aSource.mChildPerspective),
|
|
mPerspectiveOrigin{aSource.mPerspectiveOrigin[0],
|
|
aSource.mPerspectiveOrigin[1]},
|
|
mVerticalAlign(aSource.mVerticalAlign),
|
|
mTransitions(aSource.mTransitions),
|
|
mTransitionTimingFunctionCount(aSource.mTransitionTimingFunctionCount),
|
|
mTransitionDurationCount(aSource.mTransitionDurationCount),
|
|
mTransitionDelayCount(aSource.mTransitionDelayCount),
|
|
mTransitionPropertyCount(aSource.mTransitionPropertyCount),
|
|
mAnimations(aSource.mAnimations),
|
|
mAnimationTimingFunctionCount(aSource.mAnimationTimingFunctionCount),
|
|
mAnimationDurationCount(aSource.mAnimationDurationCount),
|
|
mAnimationDelayCount(aSource.mAnimationDelayCount),
|
|
mAnimationNameCount(aSource.mAnimationNameCount),
|
|
mAnimationDirectionCount(aSource.mAnimationDirectionCount),
|
|
mAnimationFillModeCount(aSource.mAnimationFillModeCount),
|
|
mAnimationPlayStateCount(aSource.mAnimationPlayStateCount),
|
|
mAnimationIterationCountCount(aSource.mAnimationIterationCountCount),
|
|
mShapeImageThreshold(aSource.mShapeImageThreshold),
|
|
mShapeMargin(aSource.mShapeMargin),
|
|
mShapeOutside(aSource.mShapeOutside) {
|
|
MOZ_COUNT_CTOR(nsStyleDisplay);
|
|
}
|
|
|
|
static void ReleaseSharedListOnMainThread(const char* aName,
|
|
RefPtr<nsCSSValueSharedList>& aList) {
|
|
// We don't allow releasing nsCSSValues with refcounted data in the Servo
|
|
// traversal, since the refcounts aren't threadsafe. Since Servo may trigger
|
|
// the deallocation of style structs during styling, we need to handle it
|
|
// here.
|
|
if (aList && ServoStyleSet::IsInServoTraversal()) {
|
|
// The default behavior of NS_ReleaseOnMainThreadSystemGroup is to only
|
|
// proxy the release if we're not already on the main thread. This is a nice
|
|
// optimization for the cases we happen to be doing a sequential traversal
|
|
// (i.e. a single-core machine), but it trips our assertions which check
|
|
// whether we're in a Servo traversal, parallel or not. So we
|
|
// unconditionally proxy in debug builds.
|
|
bool alwaysProxy =
|
|
#ifdef DEBUG
|
|
true;
|
|
#else
|
|
false;
|
|
#endif
|
|
NS_ReleaseOnMainThreadSystemGroup(aName, aList.forget(), alwaysProxy);
|
|
}
|
|
}
|
|
|
|
nsStyleDisplay::~nsStyleDisplay() {
|
|
ReleaseSharedListOnMainThread("nsStyleDisplay::mSpecifiedTransform",
|
|
mSpecifiedTransform);
|
|
ReleaseSharedListOnMainThread("nsStyleDisplay::mSpecifiedRotate",
|
|
mSpecifiedRotate);
|
|
ReleaseSharedListOnMainThread("nsStyleDisplay::mSpecifiedTranslate",
|
|
mSpecifiedTranslate);
|
|
ReleaseSharedListOnMainThread("nsStyleDisplay::mSpecifiedScale",
|
|
mSpecifiedScale);
|
|
ReleaseSharedListOnMainThread("nsStyleDisplay::mIndividualTransform",
|
|
mIndividualTransform);
|
|
MOZ_COUNT_DTOR(nsStyleDisplay);
|
|
}
|
|
|
|
void nsStyleDisplay::TriggerImageLoads(Document& aDocument,
|
|
const nsStyleDisplay* aOldStyle) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
mShapeOutside.TriggerImageLoads(
|
|
aDocument, aOldStyle ? &aOldStyle->mShapeOutside : nullptr);
|
|
}
|
|
|
|
static inline bool TransformListChanged(
|
|
const RefPtr<nsCSSValueSharedList>& aList,
|
|
const RefPtr<nsCSSValueSharedList>& aNewList) {
|
|
return !aList != !aNewList || (aList && *aList != *aNewList);
|
|
}
|
|
|
|
static inline nsChangeHint CompareTransformValues(
|
|
const RefPtr<nsCSSValueSharedList>& aList,
|
|
const RefPtr<nsCSSValueSharedList>& aNewList) {
|
|
nsChangeHint result = nsChangeHint(0);
|
|
|
|
// Note: If we add a new change hint for transform changes here, we have to
|
|
// modify KeyframeEffect::CalculateCumulativeChangeHint too!
|
|
if (!aList != !aNewList || (aList && *aList != *aNewList)) {
|
|
result |= nsChangeHint_UpdateTransformLayer;
|
|
if (aList && aNewList) {
|
|
result |= nsChangeHint_UpdatePostTransformOverflow;
|
|
} else {
|
|
result |= nsChangeHint_UpdateOverflow;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static inline nsChangeHint CompareMotionValues(const StyleMotion* aMotion,
|
|
const StyleMotion* aNewMotion) {
|
|
nsChangeHint result = nsChangeHint(0);
|
|
|
|
// TODO: Bug 1482737: This probably doesn't need to UpdateOverflow
|
|
// (or UpdateTransformLayer) if there's already a transform.
|
|
if (!aMotion != !aNewMotion || (aMotion && *aMotion != *aNewMotion)) {
|
|
// Set the same hints as what we use for transform because motion path is
|
|
// a kind of transform and will be combined with other transforms.
|
|
result |= nsChangeHint_UpdateTransformLayer;
|
|
if ((aMotion && aMotion->HasPath()) &&
|
|
(aNewMotion && aNewMotion->HasPath())) {
|
|
result |= nsChangeHint_UpdatePostTransformOverflow;
|
|
} else {
|
|
result |= nsChangeHint_UpdateOverflow;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
nsChangeHint nsStyleDisplay::CalcDifference(
|
|
const nsStyleDisplay& aNewData) const {
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
if (!DefinitelyEqualURIsAndPrincipal(mBinding, aNewData.mBinding) ||
|
|
mPosition != aNewData.mPosition || mDisplay != aNewData.mDisplay ||
|
|
mContain != aNewData.mContain ||
|
|
(mFloat == StyleFloat::None) != (aNewData.mFloat == StyleFloat::None) ||
|
|
mScrollBehavior != aNewData.mScrollBehavior ||
|
|
mScrollSnapTypeX != aNewData.mScrollSnapTypeX ||
|
|
mScrollSnapTypeY != aNewData.mScrollSnapTypeY ||
|
|
mScrollSnapPointsX != aNewData.mScrollSnapPointsX ||
|
|
mScrollSnapPointsY != aNewData.mScrollSnapPointsY ||
|
|
mScrollSnapDestination != aNewData.mScrollSnapDestination ||
|
|
mTopLayer != aNewData.mTopLayer || mResize != aNewData.mResize) {
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
|
|
if ((mAppearance == StyleAppearance::Textfield &&
|
|
aNewData.mAppearance != StyleAppearance::Textfield) ||
|
|
(mAppearance != StyleAppearance::Textfield &&
|
|
aNewData.mAppearance == StyleAppearance::Textfield)) {
|
|
// This is for <input type=number> where we allow authors to specify a
|
|
// |-moz-appearance:textfield| to get a control without a spinner. (The
|
|
// spinner is present for |-moz-appearance:number-input| but also other
|
|
// values such as 'none'.) We need to reframe since we want to use
|
|
// nsTextControlFrame instead of nsNumberControlFrame if the author
|
|
// specifies 'textfield'.
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
|
|
if (mOverflowX != aNewData.mOverflowX || mOverflowY != aNewData.mOverflowY) {
|
|
hint |= nsChangeHint_ScrollbarChange;
|
|
}
|
|
|
|
/* Note: When mScrollBehavior, mScrollSnapTypeX, mScrollSnapTypeY,
|
|
* mScrollSnapPointsX, mScrollSnapPointsY, or mScrollSnapDestination are
|
|
* changed, nsChangeHint_NeutralChange is not sufficient to enter
|
|
* nsCSSFrameConstructor::PropagateScrollToViewport. By using the same hint
|
|
* as used when the overflow css property changes,
|
|
* nsChangeHint_ReconstructFrame, PropagateScrollToViewport will be called.
|
|
*
|
|
* The scroll-behavior css property is not expected to change often (the
|
|
* CSSOM-View DOM methods are likely to be used in those cases); however,
|
|
* if this does become common perhaps a faster-path might be worth while.
|
|
*/
|
|
|
|
if (mFloat != aNewData.mFloat) {
|
|
// Changing which side we're floating on (float:none was handled above).
|
|
hint |= nsChangeHint_ReflowHintsForFloatAreaChange;
|
|
}
|
|
|
|
if (mShapeOutside != aNewData.mShapeOutside ||
|
|
mShapeMargin != aNewData.mShapeMargin ||
|
|
mShapeImageThreshold != aNewData.mShapeImageThreshold) {
|
|
if (aNewData.mFloat != StyleFloat::None) {
|
|
// If we are floating, and our shape-outside, shape-margin, or
|
|
// shape-image-threshold are changed, our descendants are not impacted,
|
|
// but our ancestor and siblings are.
|
|
hint |= nsChangeHint_ReflowHintsForFloatAreaChange;
|
|
} else {
|
|
// shape-outside or shape-margin or shape-image-threshold changed,
|
|
// but we don't need to reflow because we're not floating.
|
|
hint |= nsChangeHint_NeutralChange;
|
|
}
|
|
}
|
|
|
|
if (mVerticalAlign != aNewData.mVerticalAlign) {
|
|
// XXX Can this just be AllReflowHints + RepaintFrame, and be included in
|
|
// the block below?
|
|
hint |= NS_STYLE_HINT_REFLOW;
|
|
}
|
|
|
|
// XXX the following is conservative, for now: changing float breaking
|
|
// shouldn't necessarily require a repaint, reflow should suffice.
|
|
//
|
|
// FIXME(emilio): We definitely change the frame tree in nsCSSFrameConstructor
|
|
// based on break-before / break-after... Shouldn't that reframe?
|
|
if (mBreakType != aNewData.mBreakType ||
|
|
mBreakInside != aNewData.mBreakInside ||
|
|
mBreakBefore != aNewData.mBreakBefore ||
|
|
mBreakAfter != aNewData.mBreakAfter ||
|
|
mAppearance != aNewData.mAppearance || mOrient != aNewData.mOrient ||
|
|
mOverflowClipBoxBlock != aNewData.mOverflowClipBoxBlock ||
|
|
mOverflowClipBoxInline != aNewData.mOverflowClipBoxInline) {
|
|
hint |= nsChangeHint_AllReflowHints | nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (mIsolation != aNewData.mIsolation) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
/* If we've added or removed the transform property, we need to reconstruct
|
|
* the frame to add or remove the view object, and also to handle abs-pos and
|
|
* fixed-pos containers.
|
|
*/
|
|
if (HasTransformStyle() != aNewData.HasTransformStyle()) {
|
|
hint |= nsChangeHint_ComprehensiveAddOrRemoveTransform;
|
|
} else {
|
|
/* Otherwise, if we've kept the property lying around and we already had a
|
|
* transform, we need to see whether or not we've changed the transform.
|
|
* If so, we need to recompute its overflow rect (which probably changed
|
|
* if the transform changed) and to redraw within the bounds of that new
|
|
* overflow rect.
|
|
*
|
|
* If the property isn't present in either style struct, we still do the
|
|
* comparisons but turn all the resulting change hints into
|
|
* nsChangeHint_NeutralChange.
|
|
*/
|
|
nsChangeHint transformHint = nsChangeHint(0);
|
|
|
|
transformHint |= CompareTransformValues(mSpecifiedTransform,
|
|
aNewData.mSpecifiedTransform);
|
|
transformHint |=
|
|
CompareTransformValues(mSpecifiedRotate, aNewData.mSpecifiedRotate);
|
|
transformHint |= CompareTransformValues(mSpecifiedTranslate,
|
|
aNewData.mSpecifiedTranslate);
|
|
transformHint |=
|
|
CompareTransformValues(mSpecifiedScale, aNewData.mSpecifiedScale);
|
|
transformHint |= CompareMotionValues(mMotion.get(), aNewData.mMotion.get());
|
|
|
|
const nsChangeHint kUpdateOverflowAndRepaintHint =
|
|
nsChangeHint_UpdateOverflow | nsChangeHint_RepaintFrame;
|
|
for (uint8_t index = 0; index < 3; ++index) {
|
|
if (mTransformOrigin[index] != aNewData.mTransformOrigin[index]) {
|
|
transformHint |= nsChangeHint_UpdateTransformLayer |
|
|
nsChangeHint_UpdatePostTransformOverflow;
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (uint8_t index = 0; index < 2; ++index) {
|
|
if (mPerspectiveOrigin[index] != aNewData.mPerspectiveOrigin[index]) {
|
|
transformHint |= kUpdateOverflowAndRepaintHint;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (mTransformStyle != aNewData.mTransformStyle ||
|
|
mTransformBox != aNewData.mTransformBox) {
|
|
transformHint |= kUpdateOverflowAndRepaintHint;
|
|
}
|
|
|
|
if (mBackfaceVisibility != aNewData.mBackfaceVisibility) {
|
|
transformHint |= nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (transformHint) {
|
|
if (HasTransformStyle()) {
|
|
hint |= transformHint;
|
|
} else {
|
|
hint |= nsChangeHint_NeutralChange;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (HasPerspectiveStyle() != aNewData.HasPerspectiveStyle()) {
|
|
// A change from/to being a containing block for position:fixed.
|
|
hint |= nsChangeHint_UpdateContainingBlock | nsChangeHint_UpdateOverflow |
|
|
nsChangeHint_RepaintFrame;
|
|
} else if (mChildPerspective != aNewData.mChildPerspective) {
|
|
hint |= nsChangeHint_UpdateOverflow | nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
// Note that the HasTransformStyle() != aNewData.HasTransformStyle()
|
|
// test above handles relevant changes in the
|
|
// NS_STYLE_WILL_CHANGE_TRANSFORM bit, which in turn handles frame
|
|
// reconstruction for changes in the containing block of
|
|
// fixed-positioned elements.
|
|
uint8_t willChangeBitsChanged =
|
|
mWillChangeBitField ^ aNewData.mWillChangeBitField;
|
|
if (willChangeBitsChanged &
|
|
(NS_STYLE_WILL_CHANGE_STACKING_CONTEXT | NS_STYLE_WILL_CHANGE_SCROLL |
|
|
NS_STYLE_WILL_CHANGE_OPACITY)) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (willChangeBitsChanged &
|
|
(NS_STYLE_WILL_CHANGE_FIXPOS_CB | NS_STYLE_WILL_CHANGE_ABSPOS_CB)) {
|
|
hint |= nsChangeHint_UpdateContainingBlock;
|
|
}
|
|
|
|
// If touch-action is changed, we need to regenerate the event regions on
|
|
// the layers and send it over to the compositor for APZ to handle.
|
|
if (mTouchAction != aNewData.mTouchAction) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
// If overscroll-behavior has changed, the changes are picked up
|
|
// during a repaint.
|
|
if (mOverscrollBehaviorX != aNewData.mOverscrollBehaviorX ||
|
|
mOverscrollBehaviorY != aNewData.mOverscrollBehaviorY) {
|
|
hint |= nsChangeHint_SchedulePaint;
|
|
}
|
|
|
|
// Note: Our current behavior for handling changes to the
|
|
// transition-duration, transition-delay, and transition-timing-function
|
|
// properties is to do nothing. In other words, the transition
|
|
// property that matters is what it is when the transition begins, and
|
|
// we don't stop a transition later because the transition property
|
|
// changed.
|
|
// We do handle changes to transition-property, but we don't need to
|
|
// bother with anything here, since the transition manager is notified
|
|
// of any ComputedStyle change anyway.
|
|
|
|
// Note: Likewise, for animation-*, the animation manager gets
|
|
// notified about every new ComputedStyle constructed, and it uses
|
|
// that opportunity to handle dynamic changes appropriately.
|
|
|
|
// But we still need to return nsChangeHint_NeutralChange for these
|
|
// properties, since some data did change in the style struct.
|
|
|
|
if (!hint && (mOriginalDisplay != aNewData.mOriginalDisplay ||
|
|
mOriginalFloat != aNewData.mOriginalFloat ||
|
|
mTransitions != aNewData.mTransitions ||
|
|
mTransitionTimingFunctionCount !=
|
|
aNewData.mTransitionTimingFunctionCount ||
|
|
mTransitionDurationCount != aNewData.mTransitionDurationCount ||
|
|
mTransitionDelayCount != aNewData.mTransitionDelayCount ||
|
|
mTransitionPropertyCount != aNewData.mTransitionPropertyCount ||
|
|
mAnimations != aNewData.mAnimations ||
|
|
mAnimationTimingFunctionCount !=
|
|
aNewData.mAnimationTimingFunctionCount ||
|
|
mAnimationDurationCount != aNewData.mAnimationDurationCount ||
|
|
mAnimationDelayCount != aNewData.mAnimationDelayCount ||
|
|
mAnimationNameCount != aNewData.mAnimationNameCount ||
|
|
mAnimationDirectionCount != aNewData.mAnimationDirectionCount ||
|
|
mAnimationFillModeCount != aNewData.mAnimationFillModeCount ||
|
|
mAnimationPlayStateCount != aNewData.mAnimationPlayStateCount ||
|
|
mAnimationIterationCountCount !=
|
|
aNewData.mAnimationIterationCountCount ||
|
|
mScrollSnapCoordinate != aNewData.mScrollSnapCoordinate ||
|
|
mWillChange != aNewData.mWillChange)) {
|
|
hint |= nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
return hint;
|
|
}
|
|
|
|
bool nsStyleDisplay::TransformChanged(const nsStyleDisplay& aNewData) const {
|
|
return TransformListChanged(mSpecifiedTransform,
|
|
aNewData.mSpecifiedTransform);
|
|
}
|
|
|
|
void nsStyleDisplay::GenerateCombinedIndividualTransform() {
|
|
MOZ_ASSERT(!mIndividualTransform);
|
|
|
|
// Follow the order defined in the spec to append transform functions.
|
|
// https://drafts.csswg.org/css-transforms-2/#ctm
|
|
AutoTArray<nsCSSValueSharedList*, 3> shareLists;
|
|
if (mSpecifiedTranslate) {
|
|
shareLists.AppendElement(mSpecifiedTranslate.get());
|
|
}
|
|
if (mSpecifiedRotate) {
|
|
shareLists.AppendElement(mSpecifiedRotate.get());
|
|
}
|
|
if (mSpecifiedScale) {
|
|
shareLists.AppendElement(mSpecifiedScale.get());
|
|
}
|
|
|
|
if (shareLists.Length() == 0) {
|
|
return;
|
|
}
|
|
if (shareLists.Length() == 1) {
|
|
mIndividualTransform = shareLists[0];
|
|
return;
|
|
}
|
|
|
|
// In common, we may have 3 transform functions:
|
|
// 1. one rotate function in mSpecifiedRotate,
|
|
// 2. one translate function in mSpecifiedTranslate,
|
|
// 3. one scale function in mSpecifiedScale.
|
|
AutoTArray<nsCSSValueList*, 3> valueLists;
|
|
for (auto list : shareLists) {
|
|
if (list) {
|
|
valueLists.AppendElement(list->mHead->Clone());
|
|
}
|
|
}
|
|
|
|
// Check we have at least one list or else valueLists.Length() - 1 below will
|
|
// underflow.
|
|
MOZ_ASSERT(valueLists.Length());
|
|
|
|
for (uint32_t i = 0; i < valueLists.Length() - 1; i++) {
|
|
valueLists[i]->mNext = valueLists[i + 1];
|
|
}
|
|
|
|
mIndividualTransform = new nsCSSValueSharedList(valueLists[0]);
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleVisibility
|
|
//
|
|
|
|
nsStyleVisibility::nsStyleVisibility(const Document& aDocument)
|
|
: mDirection(aDocument.GetBidiOptions() == IBMBIDI_TEXTDIRECTION_RTL
|
|
? NS_STYLE_DIRECTION_RTL
|
|
: NS_STYLE_DIRECTION_LTR),
|
|
mVisible(NS_STYLE_VISIBILITY_VISIBLE),
|
|
mImageRendering(NS_STYLE_IMAGE_RENDERING_AUTO),
|
|
mWritingMode(NS_STYLE_WRITING_MODE_HORIZONTAL_TB),
|
|
mTextOrientation(NS_STYLE_TEXT_ORIENTATION_MIXED),
|
|
mColorAdjust(StyleColorAdjust::Economy) {
|
|
MOZ_COUNT_CTOR(nsStyleVisibility);
|
|
}
|
|
|
|
nsStyleVisibility::nsStyleVisibility(const nsStyleVisibility& aSource)
|
|
: mImageOrientation(aSource.mImageOrientation),
|
|
mDirection(aSource.mDirection),
|
|
mVisible(aSource.mVisible),
|
|
mImageRendering(aSource.mImageRendering),
|
|
mWritingMode(aSource.mWritingMode),
|
|
mTextOrientation(aSource.mTextOrientation),
|
|
mColorAdjust(aSource.mColorAdjust) {
|
|
MOZ_COUNT_CTOR(nsStyleVisibility);
|
|
}
|
|
|
|
nsChangeHint nsStyleVisibility::CalcDifference(
|
|
const nsStyleVisibility& aNewData) const {
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
if (mDirection != aNewData.mDirection ||
|
|
mWritingMode != aNewData.mWritingMode) {
|
|
// It's important that a change in mWritingMode results in frame
|
|
// reconstruction, because it may affect intrinsic size (see
|
|
// nsSubDocumentFrame::GetIntrinsicISize/BSize).
|
|
// Also, the used writing-mode value is now a field on nsIFrame and some
|
|
// classes (e.g. table rows/cells) copy their value from an ancestor.
|
|
hint |= nsChangeHint_ReconstructFrame;
|
|
} else {
|
|
if ((mImageOrientation != aNewData.mImageOrientation)) {
|
|
hint |= nsChangeHint_AllReflowHints | nsChangeHint_RepaintFrame;
|
|
}
|
|
if (mVisible != aNewData.mVisible) {
|
|
if (mVisible == NS_STYLE_VISIBILITY_VISIBLE ||
|
|
aNewData.mVisible == NS_STYLE_VISIBILITY_VISIBLE) {
|
|
hint |= nsChangeHint_VisibilityChange;
|
|
}
|
|
if ((NS_STYLE_VISIBILITY_COLLAPSE == mVisible) ||
|
|
(NS_STYLE_VISIBILITY_COLLAPSE == aNewData.mVisible)) {
|
|
hint |= NS_STYLE_HINT_REFLOW;
|
|
} else {
|
|
hint |= NS_STYLE_HINT_VISUAL;
|
|
}
|
|
}
|
|
if (mTextOrientation != aNewData.mTextOrientation) {
|
|
hint |= NS_STYLE_HINT_REFLOW;
|
|
}
|
|
if (mImageRendering != aNewData.mImageRendering) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
}
|
|
if (mColorAdjust != aNewData.mColorAdjust) {
|
|
// color-adjust only affects media where dynamic changes can't happen.
|
|
hint |= nsChangeHint_NeutralChange;
|
|
}
|
|
}
|
|
return hint;
|
|
}
|
|
|
|
nsStyleContentData::~nsStyleContentData() {
|
|
MOZ_COUNT_DTOR(nsStyleContentData);
|
|
|
|
if (mType == StyleContentType::Image) {
|
|
// FIXME(emilio): Is this needed now that URLs are not main thread only?
|
|
NS_ReleaseOnMainThreadSystemGroup("nsStyleContentData::mContent.mImage",
|
|
dont_AddRef(mContent.mImage));
|
|
mContent.mImage = nullptr;
|
|
} else if (mType == StyleContentType::Counter ||
|
|
mType == StyleContentType::Counters) {
|
|
mContent.mCounters->Release();
|
|
} else if (mType == StyleContentType::String) {
|
|
free(mContent.mString);
|
|
} else if (mType == StyleContentType::Attr) {
|
|
delete mContent.mAttr;
|
|
} else {
|
|
MOZ_ASSERT(mContent.mString == nullptr, "Leaking due to missing case");
|
|
}
|
|
}
|
|
|
|
nsStyleContentData::nsStyleContentData(const nsStyleContentData& aOther)
|
|
: mType(aOther.mType) {
|
|
MOZ_COUNT_CTOR(nsStyleContentData);
|
|
switch (mType) {
|
|
case StyleContentType::Image:
|
|
mContent.mImage = aOther.mContent.mImage;
|
|
mContent.mImage->AddRef();
|
|
break;
|
|
case StyleContentType::Counter:
|
|
case StyleContentType::Counters:
|
|
mContent.mCounters = aOther.mContent.mCounters;
|
|
mContent.mCounters->AddRef();
|
|
break;
|
|
case StyleContentType::Attr:
|
|
mContent.mAttr = new nsStyleContentAttr(*aOther.mContent.mAttr);
|
|
break;
|
|
case StyleContentType::String:
|
|
mContent.mString = NS_xstrdup(aOther.mContent.mString);
|
|
break;
|
|
default:
|
|
MOZ_ASSERT(!aOther.mContent.mString);
|
|
mContent.mString = nullptr;
|
|
}
|
|
}
|
|
|
|
bool nsStyleContentData::CounterFunction::operator==(
|
|
const CounterFunction& aOther) const {
|
|
return mIdent == aOther.mIdent && mSeparator == aOther.mSeparator &&
|
|
mCounterStyle == aOther.mCounterStyle;
|
|
}
|
|
|
|
nsStyleContentData& nsStyleContentData::operator=(
|
|
const nsStyleContentData& aOther) {
|
|
if (this == &aOther) {
|
|
return *this;
|
|
}
|
|
this->~nsStyleContentData();
|
|
new (this) nsStyleContentData(aOther);
|
|
|
|
return *this;
|
|
}
|
|
|
|
bool nsStyleContentData::operator==(const nsStyleContentData& aOther) const {
|
|
if (mType != aOther.mType) {
|
|
return false;
|
|
}
|
|
if (mType == StyleContentType::Image) {
|
|
return DefinitelyEqualImages(mContent.mImage, aOther.mContent.mImage);
|
|
}
|
|
if (mType == StyleContentType::Attr) {
|
|
return *mContent.mAttr == *aOther.mContent.mAttr;
|
|
}
|
|
if (mType == StyleContentType::Counter ||
|
|
mType == StyleContentType::Counters) {
|
|
return *mContent.mCounters == *aOther.mContent.mCounters;
|
|
}
|
|
if (mType == StyleContentType::String) {
|
|
return NS_strcmp(mContent.mString, aOther.mContent.mString) == 0;
|
|
}
|
|
MOZ_ASSERT(!mContent.mString && !aOther.mContent.mString);
|
|
return true;
|
|
}
|
|
|
|
void nsStyleContentData::Resolve(Document& aDocument,
|
|
const nsStyleContentData* aOldStyle) {
|
|
if (mType != StyleContentType::Image) {
|
|
return;
|
|
}
|
|
if (!mContent.mImage->IsResolved()) {
|
|
const nsStyleImageRequest* oldRequest =
|
|
(aOldStyle && aOldStyle->mType == StyleContentType::Image)
|
|
? aOldStyle->mContent.mImage
|
|
: nullptr;
|
|
mContent.mImage->Resolve(aDocument, oldRequest);
|
|
}
|
|
}
|
|
|
|
//-----------------------
|
|
// nsStyleContent
|
|
//
|
|
|
|
nsStyleContent::nsStyleContent(const Document& aDocument) {
|
|
MOZ_COUNT_CTOR(nsStyleContent);
|
|
}
|
|
|
|
nsStyleContent::~nsStyleContent() { MOZ_COUNT_DTOR(nsStyleContent); }
|
|
|
|
void nsStyleContent::TriggerImageLoads(Document& aDocument,
|
|
const nsStyleContent* aOldStyle) {
|
|
for (size_t i = 0; i < mContents.Length(); ++i) {
|
|
const nsStyleContentData* oldData =
|
|
(aOldStyle && aOldStyle->mContents.Length() > i)
|
|
? &aOldStyle->mContents[i]
|
|
: nullptr;
|
|
mContents[i].Resolve(aDocument, oldData);
|
|
}
|
|
}
|
|
|
|
nsStyleContent::nsStyleContent(const nsStyleContent& aSource)
|
|
: mContents(aSource.mContents),
|
|
mIncrements(aSource.mIncrements),
|
|
mResets(aSource.mResets) {
|
|
MOZ_COUNT_CTOR(nsStyleContent);
|
|
}
|
|
|
|
nsChangeHint nsStyleContent::CalcDifference(
|
|
const nsStyleContent& aNewData) const {
|
|
// Unfortunately we need to reframe even if the content lengths are the same;
|
|
// a simple reflow will not pick up different text or different image URLs,
|
|
// since we set all that up in the CSSFrameConstructor
|
|
if (mContents != aNewData.mContents || mIncrements != aNewData.mIncrements ||
|
|
mResets != aNewData.mResets) {
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleTextReset
|
|
//
|
|
|
|
nsStyleTextReset::nsStyleTextReset(const Document& aDocument)
|
|
: mTextOverflow(),
|
|
mTextDecorationLine(NS_STYLE_TEXT_DECORATION_LINE_NONE),
|
|
mTextDecorationStyle(NS_STYLE_TEXT_DECORATION_STYLE_SOLID),
|
|
mUnicodeBidi(NS_STYLE_UNICODE_BIDI_NORMAL),
|
|
mInitialLetterSink(0),
|
|
mInitialLetterSize(0.0f),
|
|
mTextDecorationColor(StyleComplexColor::CurrentColor()) {
|
|
MOZ_COUNT_CTOR(nsStyleTextReset);
|
|
}
|
|
|
|
nsStyleTextReset::nsStyleTextReset(const nsStyleTextReset& aSource)
|
|
: mTextOverflow(aSource.mTextOverflow),
|
|
mTextDecorationLine(aSource.mTextDecorationLine),
|
|
mTextDecorationStyle(aSource.mTextDecorationStyle),
|
|
mUnicodeBidi(aSource.mUnicodeBidi),
|
|
mInitialLetterSink(aSource.mInitialLetterSink),
|
|
mInitialLetterSize(aSource.mInitialLetterSize),
|
|
mTextDecorationColor(aSource.mTextDecorationColor) {
|
|
MOZ_COUNT_CTOR(nsStyleTextReset);
|
|
}
|
|
|
|
nsStyleTextReset::~nsStyleTextReset() { MOZ_COUNT_DTOR(nsStyleTextReset); }
|
|
|
|
nsChangeHint nsStyleTextReset::CalcDifference(
|
|
const nsStyleTextReset& aNewData) const {
|
|
if (mUnicodeBidi != aNewData.mUnicodeBidi ||
|
|
mInitialLetterSink != aNewData.mInitialLetterSink ||
|
|
mInitialLetterSize != aNewData.mInitialLetterSize) {
|
|
return NS_STYLE_HINT_REFLOW;
|
|
}
|
|
|
|
if (mTextDecorationLine != aNewData.mTextDecorationLine ||
|
|
mTextDecorationStyle != aNewData.mTextDecorationStyle) {
|
|
// Changes to our text-decoration line can impact our overflow area &
|
|
// also our descendants' overflow areas (particularly for text-frame
|
|
// descendants). So, we update those areas & trigger a repaint.
|
|
return nsChangeHint_RepaintFrame | nsChangeHint_UpdateSubtreeOverflow |
|
|
nsChangeHint_SchedulePaint;
|
|
}
|
|
|
|
// Repaint for decoration color changes
|
|
if (mTextDecorationColor != aNewData.mTextDecorationColor) {
|
|
return nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (mTextOverflow != aNewData.mTextOverflow) {
|
|
return nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
// Returns true if the given shadow-arrays are equal.
|
|
static bool AreShadowArraysEqual(nsCSSShadowArray* lhs, nsCSSShadowArray* rhs) {
|
|
if (lhs == rhs) {
|
|
return true;
|
|
}
|
|
|
|
if (!lhs || !rhs || lhs->Length() != rhs->Length()) {
|
|
return false;
|
|
}
|
|
|
|
for (uint32_t i = 0; i < lhs->Length(); ++i) {
|
|
if (*lhs->ShadowAt(i) != *rhs->ShadowAt(i)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleText
|
|
//
|
|
|
|
nsStyleText::nsStyleText(const Document& aDocument)
|
|
: mTextAlign(NS_STYLE_TEXT_ALIGN_START),
|
|
mTextAlignLast(NS_STYLE_TEXT_ALIGN_AUTO),
|
|
mTextJustify(StyleTextJustify::Auto),
|
|
mTextTransform(NS_STYLE_TEXT_TRANSFORM_NONE),
|
|
mWhiteSpace(StyleWhiteSpace::Normal),
|
|
mWordBreak(NS_STYLE_WORDBREAK_NORMAL),
|
|
mOverflowWrap(StyleOverflowWrap::Normal),
|
|
mHyphens(StyleHyphens::Manual),
|
|
mRubyAlign(NS_STYLE_RUBY_ALIGN_SPACE_AROUND),
|
|
mRubyPosition(NS_STYLE_RUBY_POSITION_OVER),
|
|
mTextSizeAdjust(NS_STYLE_TEXT_SIZE_ADJUST_AUTO),
|
|
mTextCombineUpright(NS_STYLE_TEXT_COMBINE_UPRIGHT_NONE),
|
|
mControlCharacterVisibility(
|
|
nsLayoutUtils::ControlCharVisibilityDefault()),
|
|
mTextEmphasisStyle(NS_STYLE_TEXT_EMPHASIS_STYLE_NONE),
|
|
mTextRendering(StyleTextRendering::Auto),
|
|
mTextEmphasisColor(StyleComplexColor::CurrentColor()),
|
|
mWebkitTextFillColor(StyleComplexColor::CurrentColor()),
|
|
mWebkitTextStrokeColor(StyleComplexColor::CurrentColor()),
|
|
mTabSize(float(NS_STYLE_TABSIZE_INITIAL), eStyleUnit_Factor),
|
|
mWordSpacing(0, nsStyleCoord::CoordConstructor),
|
|
mLetterSpacing(eStyleUnit_Normal),
|
|
mLineHeight(eStyleUnit_Normal),
|
|
mTextIndent(LengthPercentage::Zero()),
|
|
mWebkitTextStrokeWidth(0),
|
|
mTextShadow(nullptr) {
|
|
MOZ_COUNT_CTOR(nsStyleText);
|
|
RefPtr<nsAtom> language = aDocument.GetContentLanguageAsAtomForStyle();
|
|
mTextEmphasisPosition =
|
|
language && nsStyleUtil::MatchesLanguagePrefix(language, u"zh")
|
|
? NS_STYLE_TEXT_EMPHASIS_POSITION_DEFAULT_ZH
|
|
: NS_STYLE_TEXT_EMPHASIS_POSITION_DEFAULT;
|
|
}
|
|
|
|
nsStyleText::nsStyleText(const nsStyleText& aSource)
|
|
: mTextAlign(aSource.mTextAlign),
|
|
mTextAlignLast(aSource.mTextAlignLast),
|
|
mTextJustify(aSource.mTextJustify),
|
|
mTextTransform(aSource.mTextTransform),
|
|
mWhiteSpace(aSource.mWhiteSpace),
|
|
mWordBreak(aSource.mWordBreak),
|
|
mOverflowWrap(aSource.mOverflowWrap),
|
|
mHyphens(aSource.mHyphens),
|
|
mRubyAlign(aSource.mRubyAlign),
|
|
mRubyPosition(aSource.mRubyPosition),
|
|
mTextSizeAdjust(aSource.mTextSizeAdjust),
|
|
mTextCombineUpright(aSource.mTextCombineUpright),
|
|
mControlCharacterVisibility(aSource.mControlCharacterVisibility),
|
|
mTextEmphasisPosition(aSource.mTextEmphasisPosition),
|
|
mTextEmphasisStyle(aSource.mTextEmphasisStyle),
|
|
mTextRendering(aSource.mTextRendering),
|
|
mTextEmphasisColor(aSource.mTextEmphasisColor),
|
|
mWebkitTextFillColor(aSource.mWebkitTextFillColor),
|
|
mWebkitTextStrokeColor(aSource.mWebkitTextStrokeColor),
|
|
mTabSize(aSource.mTabSize),
|
|
mWordSpacing(aSource.mWordSpacing),
|
|
mLetterSpacing(aSource.mLetterSpacing),
|
|
mLineHeight(aSource.mLineHeight),
|
|
mTextIndent(aSource.mTextIndent),
|
|
mWebkitTextStrokeWidth(aSource.mWebkitTextStrokeWidth),
|
|
mTextShadow(aSource.mTextShadow),
|
|
mTextEmphasisStyleString(aSource.mTextEmphasisStyleString) {
|
|
MOZ_COUNT_CTOR(nsStyleText);
|
|
}
|
|
|
|
nsStyleText::~nsStyleText() { MOZ_COUNT_DTOR(nsStyleText); }
|
|
|
|
nsChangeHint nsStyleText::CalcDifference(const nsStyleText& aNewData) const {
|
|
if (WhiteSpaceOrNewlineIsSignificant() !=
|
|
aNewData.WhiteSpaceOrNewlineIsSignificant()) {
|
|
// This may require construction of suppressed text frames
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
|
|
if (mTextCombineUpright != aNewData.mTextCombineUpright ||
|
|
mControlCharacterVisibility != aNewData.mControlCharacterVisibility) {
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
|
|
if ((mTextAlign != aNewData.mTextAlign) ||
|
|
(mTextAlignLast != aNewData.mTextAlignLast) ||
|
|
(mTextTransform != aNewData.mTextTransform) ||
|
|
(mWhiteSpace != aNewData.mWhiteSpace) ||
|
|
(mWordBreak != aNewData.mWordBreak) ||
|
|
(mOverflowWrap != aNewData.mOverflowWrap) ||
|
|
(mHyphens != aNewData.mHyphens) || (mRubyAlign != aNewData.mRubyAlign) ||
|
|
(mRubyPosition != aNewData.mRubyPosition) ||
|
|
(mTextSizeAdjust != aNewData.mTextSizeAdjust) ||
|
|
(mLetterSpacing != aNewData.mLetterSpacing) ||
|
|
(mLineHeight != aNewData.mLineHeight) ||
|
|
(mTextIndent != aNewData.mTextIndent) ||
|
|
(mTextJustify != aNewData.mTextJustify) ||
|
|
(mWordSpacing != aNewData.mWordSpacing) ||
|
|
(mTabSize != aNewData.mTabSize)) {
|
|
return NS_STYLE_HINT_REFLOW;
|
|
}
|
|
|
|
if (HasTextEmphasis() != aNewData.HasTextEmphasis() ||
|
|
(HasTextEmphasis() &&
|
|
mTextEmphasisPosition != aNewData.mTextEmphasisPosition)) {
|
|
// Text emphasis position change could affect line height calculation.
|
|
return nsChangeHint_AllReflowHints | nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
// text-rendering changes require a reflow since they change SVG
|
|
// frames' rects.
|
|
if (mTextRendering != aNewData.mTextRendering) {
|
|
hint |= nsChangeHint_NeedReflow |
|
|
nsChangeHint_NeedDirtyReflow | // XXX remove me: bug 876085
|
|
nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (!AreShadowArraysEqual(mTextShadow, aNewData.mTextShadow) ||
|
|
mTextEmphasisStyle != aNewData.mTextEmphasisStyle ||
|
|
mTextEmphasisStyleString != aNewData.mTextEmphasisStyleString ||
|
|
mWebkitTextStrokeWidth != aNewData.mWebkitTextStrokeWidth) {
|
|
hint |= nsChangeHint_UpdateSubtreeOverflow | nsChangeHint_SchedulePaint |
|
|
nsChangeHint_RepaintFrame;
|
|
|
|
// We don't add any other hints below.
|
|
return hint;
|
|
}
|
|
|
|
if (mTextEmphasisColor != aNewData.mTextEmphasisColor ||
|
|
mWebkitTextFillColor != aNewData.mWebkitTextFillColor ||
|
|
mWebkitTextStrokeColor != aNewData.mWebkitTextStrokeColor) {
|
|
hint |= nsChangeHint_SchedulePaint | nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (hint) {
|
|
return hint;
|
|
}
|
|
|
|
if (mTextEmphasisPosition != aNewData.mTextEmphasisPosition) {
|
|
return nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
LogicalSide nsStyleText::TextEmphasisSide(WritingMode aWM) const {
|
|
MOZ_ASSERT(
|
|
(!(mTextEmphasisPosition & NS_STYLE_TEXT_EMPHASIS_POSITION_LEFT) !=
|
|
!(mTextEmphasisPosition & NS_STYLE_TEXT_EMPHASIS_POSITION_RIGHT)) &&
|
|
(!(mTextEmphasisPosition & NS_STYLE_TEXT_EMPHASIS_POSITION_OVER) !=
|
|
!(mTextEmphasisPosition & NS_STYLE_TEXT_EMPHASIS_POSITION_UNDER)));
|
|
mozilla::Side side =
|
|
aWM.IsVertical()
|
|
? (mTextEmphasisPosition & NS_STYLE_TEXT_EMPHASIS_POSITION_LEFT
|
|
? eSideLeft
|
|
: eSideRight)
|
|
: (mTextEmphasisPosition & NS_STYLE_TEXT_EMPHASIS_POSITION_OVER
|
|
? eSideTop
|
|
: eSideBottom);
|
|
LogicalSide result = aWM.LogicalSideForPhysicalSide(side);
|
|
MOZ_ASSERT(IsBlock(result));
|
|
return result;
|
|
}
|
|
|
|
//-----------------------
|
|
// nsStyleUI
|
|
//
|
|
|
|
nsCursorImage::nsCursorImage()
|
|
: mHaveHotspot(false), mHotspotX(0.0f), mHotspotY(0.0f) {}
|
|
|
|
nsCursorImage::nsCursorImage(const nsCursorImage& aOther)
|
|
: mHaveHotspot(aOther.mHaveHotspot),
|
|
mHotspotX(aOther.mHotspotX),
|
|
mHotspotY(aOther.mHotspotY),
|
|
mImage(aOther.mImage) {}
|
|
|
|
nsCursorImage& nsCursorImage::operator=(const nsCursorImage& aOther) {
|
|
if (this != &aOther) {
|
|
mHaveHotspot = aOther.mHaveHotspot;
|
|
mHotspotX = aOther.mHotspotX;
|
|
mHotspotY = aOther.mHotspotY;
|
|
mImage = aOther.mImage;
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
bool nsCursorImage::operator==(const nsCursorImage& aOther) const {
|
|
NS_ASSERTION(mHaveHotspot || (mHotspotX == 0 && mHotspotY == 0),
|
|
"expected mHotspot{X,Y} to be 0 when mHaveHotspot is false");
|
|
NS_ASSERTION(
|
|
aOther.mHaveHotspot || (aOther.mHotspotX == 0 && aOther.mHotspotY == 0),
|
|
"expected mHotspot{X,Y} to be 0 when mHaveHotspot is false");
|
|
return mHaveHotspot == aOther.mHaveHotspot && mHotspotX == aOther.mHotspotX &&
|
|
mHotspotY == aOther.mHotspotY &&
|
|
DefinitelyEqualImages(mImage, aOther.mImage);
|
|
}
|
|
|
|
nsStyleUI::nsStyleUI(const Document& aDocument)
|
|
: mUserInput(StyleUserInput::Auto),
|
|
mUserModify(StyleUserModify::ReadOnly),
|
|
mUserFocus(StyleUserFocus::None),
|
|
mPointerEvents(NS_STYLE_POINTER_EVENTS_AUTO),
|
|
mCursor(StyleCursorKind::Auto),
|
|
mCaretColor(StyleComplexColor::Auto()),
|
|
mScrollbarFaceColor(StyleComplexColor::Auto()),
|
|
mScrollbarTrackColor(StyleComplexColor::Auto()) {
|
|
MOZ_COUNT_CTOR(nsStyleUI);
|
|
}
|
|
|
|
nsStyleUI::nsStyleUI(const nsStyleUI& aSource)
|
|
: mUserInput(aSource.mUserInput),
|
|
mUserModify(aSource.mUserModify),
|
|
mUserFocus(aSource.mUserFocus),
|
|
mPointerEvents(aSource.mPointerEvents),
|
|
mCursor(aSource.mCursor),
|
|
mCursorImages(aSource.mCursorImages),
|
|
mCaretColor(aSource.mCaretColor),
|
|
mScrollbarFaceColor(aSource.mScrollbarFaceColor),
|
|
mScrollbarTrackColor(aSource.mScrollbarTrackColor) {
|
|
MOZ_COUNT_CTOR(nsStyleUI);
|
|
}
|
|
|
|
nsStyleUI::~nsStyleUI() { MOZ_COUNT_DTOR(nsStyleUI); }
|
|
|
|
void nsStyleUI::TriggerImageLoads(Document& aDocument,
|
|
const nsStyleUI* aOldStyle) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
for (size_t i = 0; i < mCursorImages.Length(); ++i) {
|
|
nsCursorImage& cursor = mCursorImages[i];
|
|
|
|
if (cursor.mImage && !cursor.mImage->IsResolved()) {
|
|
const nsCursorImage* oldCursor =
|
|
(aOldStyle && aOldStyle->mCursorImages.Length() > i)
|
|
? &aOldStyle->mCursorImages[i]
|
|
: nullptr;
|
|
cursor.mImage->Resolve(aDocument,
|
|
oldCursor ? oldCursor->mImage.get() : nullptr);
|
|
}
|
|
}
|
|
}
|
|
|
|
nsChangeHint nsStyleUI::CalcDifference(const nsStyleUI& aNewData) const {
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
if (mCursor != aNewData.mCursor) {
|
|
hint |= nsChangeHint_UpdateCursor;
|
|
}
|
|
|
|
// We could do better. But it wouldn't be worth it, URL-specified cursors are
|
|
// rare.
|
|
if (mCursorImages != aNewData.mCursorImages) {
|
|
hint |= nsChangeHint_UpdateCursor;
|
|
}
|
|
|
|
if (mPointerEvents != aNewData.mPointerEvents) {
|
|
// SVGGeometryFrame's mRect depends on stroke _and_ on the value
|
|
// of pointer-events. See SVGGeometryFrame::ReflowSVG's use of
|
|
// GetHitTestFlags. (Only a reflow, no visual change.)
|
|
hint |= nsChangeHint_NeedReflow |
|
|
nsChangeHint_NeedDirtyReflow; // XXX remove me: bug 876085
|
|
}
|
|
|
|
if (mUserModify != aNewData.mUserModify) {
|
|
hint |= NS_STYLE_HINT_VISUAL;
|
|
}
|
|
|
|
if (mUserInput != aNewData.mUserInput) {
|
|
if (StyleUserInput::None == mUserInput ||
|
|
StyleUserInput::None == aNewData.mUserInput) {
|
|
hint |= nsChangeHint_ReconstructFrame;
|
|
} else {
|
|
hint |= nsChangeHint_NeutralChange;
|
|
}
|
|
}
|
|
|
|
if (mUserFocus != aNewData.mUserFocus) {
|
|
hint |= nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
if (mCaretColor != aNewData.mCaretColor ||
|
|
mScrollbarFaceColor != aNewData.mScrollbarFaceColor ||
|
|
mScrollbarTrackColor != aNewData.mScrollbarTrackColor) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
return hint;
|
|
}
|
|
|
|
//-----------------------
|
|
// nsStyleUIReset
|
|
//
|
|
|
|
nsStyleUIReset::nsStyleUIReset(const Document& aDocument)
|
|
: mUserSelect(StyleUserSelect::Auto),
|
|
mScrollbarWidth(StyleScrollbarWidth::Auto),
|
|
mForceBrokenImageIcon(0),
|
|
mIMEMode(NS_STYLE_IME_MODE_AUTO),
|
|
mWindowDragging(StyleWindowDragging::Default),
|
|
mWindowShadow(NS_STYLE_WINDOW_SHADOW_DEFAULT),
|
|
mWindowOpacity(1.0),
|
|
mSpecifiedWindowTransform(nullptr),
|
|
mWindowTransformOrigin{
|
|
{0.5f, eStyleUnit_Percent}, // Transform is centered on origin
|
|
{0.5f, eStyleUnit_Percent}} {
|
|
MOZ_COUNT_CTOR(nsStyleUIReset);
|
|
}
|
|
|
|
nsStyleUIReset::nsStyleUIReset(const nsStyleUIReset& aSource)
|
|
: mUserSelect(aSource.mUserSelect),
|
|
mScrollbarWidth(aSource.mScrollbarWidth),
|
|
mForceBrokenImageIcon(aSource.mForceBrokenImageIcon),
|
|
mIMEMode(aSource.mIMEMode),
|
|
mWindowDragging(aSource.mWindowDragging),
|
|
mWindowShadow(aSource.mWindowShadow),
|
|
mWindowOpacity(aSource.mWindowOpacity),
|
|
mSpecifiedWindowTransform(aSource.mSpecifiedWindowTransform),
|
|
mWindowTransformOrigin{aSource.mWindowTransformOrigin[0],
|
|
aSource.mWindowTransformOrigin[1]} {
|
|
MOZ_COUNT_CTOR(nsStyleUIReset);
|
|
}
|
|
|
|
nsStyleUIReset::~nsStyleUIReset() {
|
|
MOZ_COUNT_DTOR(nsStyleUIReset);
|
|
|
|
ReleaseSharedListOnMainThread("nsStyleUIReset::mSpecifiedWindowTransform",
|
|
mSpecifiedWindowTransform);
|
|
}
|
|
|
|
nsChangeHint nsStyleUIReset::CalcDifference(
|
|
const nsStyleUIReset& aNewData) const {
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
if (mForceBrokenImageIcon != aNewData.mForceBrokenImageIcon) {
|
|
hint |= nsChangeHint_ReconstructFrame;
|
|
}
|
|
if (mScrollbarWidth != aNewData.mScrollbarWidth) {
|
|
// For scrollbar-width change, we need some special handling similar
|
|
// to overflow properties. Specifically, we may need to reconstruct
|
|
// the scrollbar or force reflow of the viewport scrollbar.
|
|
hint |= nsChangeHint_ScrollbarChange;
|
|
}
|
|
if (mWindowShadow != aNewData.mWindowShadow) {
|
|
// We really need just an nsChangeHint_SyncFrameView, except
|
|
// on an ancestor of the frame, so we get that by doing a
|
|
// reflow.
|
|
hint |= NS_STYLE_HINT_REFLOW;
|
|
}
|
|
if (mUserSelect != aNewData.mUserSelect) {
|
|
hint |= NS_STYLE_HINT_VISUAL;
|
|
}
|
|
|
|
if (mWindowDragging != aNewData.mWindowDragging) {
|
|
hint |= nsChangeHint_SchedulePaint;
|
|
}
|
|
|
|
if (mWindowOpacity != aNewData.mWindowOpacity ||
|
|
!mSpecifiedWindowTransform != !aNewData.mSpecifiedWindowTransform ||
|
|
(mSpecifiedWindowTransform &&
|
|
*mSpecifiedWindowTransform != *aNewData.mSpecifiedWindowTransform)) {
|
|
hint |= nsChangeHint_UpdateWidgetProperties;
|
|
} else {
|
|
for (uint8_t index = 0; index < 2; ++index) {
|
|
if (mWindowTransformOrigin[index] !=
|
|
aNewData.mWindowTransformOrigin[index]) {
|
|
hint |= nsChangeHint_UpdateWidgetProperties;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!hint && mIMEMode != aNewData.mIMEMode) {
|
|
hint |= nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
return hint;
|
|
}
|
|
|
|
//-----------------------
|
|
// nsStyleEffects
|
|
//
|
|
|
|
nsStyleEffects::nsStyleEffects(const Document&)
|
|
: mBoxShadow(nullptr),
|
|
mClip(0, 0, 0, 0),
|
|
mOpacity(1.0f),
|
|
mClipFlags(NS_STYLE_CLIP_AUTO),
|
|
mMixBlendMode(NS_STYLE_BLEND_NORMAL) {
|
|
MOZ_COUNT_CTOR(nsStyleEffects);
|
|
}
|
|
|
|
nsStyleEffects::nsStyleEffects(const nsStyleEffects& aSource)
|
|
: mFilters(aSource.mFilters),
|
|
mBoxShadow(aSource.mBoxShadow),
|
|
mClip(aSource.mClip),
|
|
mOpacity(aSource.mOpacity),
|
|
mClipFlags(aSource.mClipFlags),
|
|
mMixBlendMode(aSource.mMixBlendMode) {
|
|
MOZ_COUNT_CTOR(nsStyleEffects);
|
|
}
|
|
|
|
nsStyleEffects::~nsStyleEffects() { MOZ_COUNT_DTOR(nsStyleEffects); }
|
|
|
|
nsChangeHint nsStyleEffects::CalcDifference(
|
|
const nsStyleEffects& aNewData) const {
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
if (!AreShadowArraysEqual(mBoxShadow, aNewData.mBoxShadow)) {
|
|
// Update overflow regions & trigger DLBI to be sure it's noticed.
|
|
// Also request a repaint, since it's possible that only the color
|
|
// of the shadow is changing (and UpdateOverflow/SchedulePaint won't
|
|
// repaint for that, since they won't know what needs invalidating.)
|
|
hint |= nsChangeHint_UpdateOverflow | nsChangeHint_SchedulePaint |
|
|
nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (mClipFlags != aNewData.mClipFlags) {
|
|
hint |= nsChangeHint_AllReflowHints | nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (!mClip.IsEqualInterior(aNewData.mClip)) {
|
|
// If the clip has changed, we just need to update overflow areas. DLBI
|
|
// will handle the invalidation.
|
|
hint |= nsChangeHint_UpdateOverflow | nsChangeHint_SchedulePaint;
|
|
}
|
|
|
|
if (mOpacity != aNewData.mOpacity) {
|
|
// If we're going from the optimized >=0.99 opacity value to 1.0 or back,
|
|
// then repaint the frame because DLBI will not catch the invalidation.
|
|
// Otherwise, just update the opacity layer.
|
|
if ((mOpacity >= 0.99f && mOpacity < 1.0f && aNewData.mOpacity == 1.0f) ||
|
|
(aNewData.mOpacity >= 0.99f && aNewData.mOpacity < 1.0f &&
|
|
mOpacity == 1.0f)) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
} else {
|
|
hint |= nsChangeHint_UpdateOpacityLayer;
|
|
if ((mOpacity == 1.0f) != (aNewData.mOpacity == 1.0f)) {
|
|
hint |= nsChangeHint_UpdateUsesOpacity;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (HasFilters() != aNewData.HasFilters()) {
|
|
// A change from/to being a containing block for position:fixed.
|
|
hint |= nsChangeHint_UpdateContainingBlock;
|
|
}
|
|
|
|
if (mFilters != aNewData.mFilters) {
|
|
hint |= nsChangeHint_UpdateEffects | nsChangeHint_RepaintFrame |
|
|
nsChangeHint_UpdateOverflow;
|
|
}
|
|
|
|
if (mMixBlendMode != aNewData.mMixBlendMode) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (!hint && !mClip.IsEqualEdges(aNewData.mClip)) {
|
|
hint |= nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
return hint;
|
|
}
|