зеркало из https://github.com/mozilla/gecko-dev.git
4473 строки
138 KiB
C++
4473 строки
138 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 nsStyleContext, 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 "nsThemeConstants.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 "nsCSSParser.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/AnimationEffectReadOnlyBinding.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/Likely.h"
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#include "nsIURI.h"
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#include "nsIDocument.h"
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#include <algorithm>
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using namespace mozilla;
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using namespace mozilla::dom;
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static_assert((((1 << nsStyleStructID_Length) - 1) &
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~(NS_STYLE_INHERIT_MASK)) == 0,
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"Not enough bits in NS_STYLE_INHERIT_MASK");
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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 bool
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DefinitelyEqualURIs(css::URLValueData* aURI1,
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css::URLValueData* aURI2)
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{
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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
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DefinitelyEqualURIsAndPrincipal(css::URLValueData* aURI1,
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css::URLValueData* aURI2)
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{
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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
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DefinitelyEqualImages(nsStyleImageRequest* aRequest1,
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nsStyleImageRequest* aRequest2)
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{
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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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// A nullsafe wrapper for strcmp. We depend on null-safety.
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static int
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safe_strcmp(const char16_t* a, const char16_t* b)
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{
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if (!a || !b) {
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return (int)(a - b);
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}
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return NS_strcmp(a, b);
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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 nsFont& aFont, const nsPresContext* aContext)
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: mFont(aFont)
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, mSize(nsStyleFont::ZoomText(aContext, mFont.size))
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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(GetLanguage(aContext))
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{
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MOZ_COUNT_CTOR(nsStyleFont);
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mFont.size = mSize;
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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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, 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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{
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MOZ_COUNT_CTOR(nsStyleFont);
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}
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nsStyleFont::nsStyleFont(const nsPresContext* aContext)
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: nsStyleFont(*aContext->GetDefaultFont(kPresContext_DefaultVariableFont_ID,
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nullptr),
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aContext)
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{
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}
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void
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nsStyleFont::Destroy(nsPresContext* aContext) {
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this->~nsStyleFont();
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aContext->PresShell()->
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FreeByObjectID(eArenaObjectID_nsStyleFont, this);
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}
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void
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nsStyleFont::EnableZoom(nsPresContext* aContext, bool aEnable)
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{
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if (mAllowZoom == aEnable) {
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return;
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}
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mAllowZoom = aEnable;
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if (mAllowZoom) {
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mSize = nsStyleFont::ZoomText(aContext, mSize);
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mFont.size = nsStyleFont::ZoomText(aContext, mFont.size);
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mScriptUnconstrainedSize =
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nsStyleFont::ZoomText(aContext, mScriptUnconstrainedSize);
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} else {
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mSize = nsStyleFont::UnZoomText(aContext, mSize);
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mFont.size = nsStyleFont::UnZoomText(aContext, mFont.size);
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mScriptUnconstrainedSize =
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nsStyleFont::UnZoomText(aContext, mScriptUnconstrainedSize);
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}
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}
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nsChangeHint
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nsStyleFont::CalcDifference(const nsStyleFont& aNewData) const
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{
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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 ||
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mFont != aNewData.mFont ||
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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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// 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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/* static */ nscoord
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nsStyleFont::ZoomText(const nsPresContext* aPresContext, nscoord aSize)
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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) * aPresContext->EffectiveTextZoom());
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}
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/* static */ nscoord
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nsStyleFont::UnZoomText(nsPresContext *aPresContext, nscoord aSize)
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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) / aPresContext->EffectiveTextZoom());
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}
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/* static */ already_AddRefed<nsIAtom>
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nsStyleFont::GetLanguage(const nsPresContext* aPresContext)
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{
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RefPtr<nsIAtom> language = aPresContext->GetContentLanguage();
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if (!language) {
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// we didn't find a (usable) Content-Language, so we fall back
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// to whatever the presContext guessed from the charset
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// NOTE this should not be used elsewhere, because we want websites
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// to use UTF-8 with proper language tag, instead of relying on
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// deriving language from charset. See bug 1040668 comment 67.
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language = aPresContext->GetLanguageFromCharset();
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}
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return language.forget();
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}
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nsStyleMargin::nsStyleMargin(const nsPresContext* aContext)
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{
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MOZ_COUNT_CTOR(nsStyleMargin);
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nsStyleCoord zero(0, nsStyleCoord::CoordConstructor);
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NS_FOR_CSS_SIDES(side) {
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mMargin.Set(side, zero);
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}
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}
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nsStyleMargin::nsStyleMargin(const nsStyleMargin& aSrc)
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: mMargin(aSrc.mMargin)
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{
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MOZ_COUNT_CTOR(nsStyleMargin);
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}
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void
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nsStyleMargin::Destroy(nsPresContext* aContext) {
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this->~nsStyleMargin();
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aContext->PresShell()->
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FreeByObjectID(eArenaObjectID_nsStyleMargin, this);
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}
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nsChangeHint
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nsStyleMargin::CalcDifference(const nsStyleMargin& aNewData) const
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{
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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 |
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nsChangeHint_ReflowChangesSizeOrPosition |
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nsChangeHint_ClearAncestorIntrinsics;
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}
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nsStylePadding::nsStylePadding(const nsPresContext* aContext)
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{
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MOZ_COUNT_CTOR(nsStylePadding);
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nsStyleCoord zero(0, nsStyleCoord::CoordConstructor);
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NS_FOR_CSS_SIDES(side) {
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mPadding.Set(side, zero);
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}
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}
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nsStylePadding::nsStylePadding(const nsStylePadding& aSrc)
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: mPadding(aSrc.mPadding)
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{
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MOZ_COUNT_CTOR(nsStylePadding);
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}
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void
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nsStylePadding::Destroy(nsPresContext* aContext) {
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this->~nsStylePadding();
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aContext->PresShell()->
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FreeByObjectID(eArenaObjectID_nsStylePadding, this);
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}
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nsChangeHint
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nsStylePadding::CalcDifference(const nsStylePadding& aNewData) const
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{
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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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nsStyleBorder::nsStyleBorder(const nsPresContext* aContext)
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: mBorderColors(nullptr)
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, mBorderImageFill(NS_STYLE_BORDER_IMAGE_SLICE_NOFILL)
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, mBorderImageRepeatH(NS_STYLE_BORDER_IMAGE_REPEAT_STRETCH)
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, mBorderImageRepeatV(NS_STYLE_BORDER_IMAGE_REPEAT_STRETCH)
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, mFloatEdge(StyleFloatEdge::ContentBox)
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, mBoxDecorationBreak(StyleBoxDecorationBreak::Slice)
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, mComputedBorder(0, 0, 0, 0)
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{
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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 =
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(StaticPresData::Get()->GetBorderWidthTable())[NS_STYLE_BORDER_WIDTH_MEDIUM];
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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] = NS_STYLE_BORDER_STYLE_NONE;
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mBorderColor[side] = StyleComplexColor::CurrentColor();
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}
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mTwipsPerPixel = aContext->DevPixelsToAppUnits(1);
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}
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nsBorderColors::~nsBorderColors()
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{
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NS_CSS_DELETE_LIST_MEMBER(nsBorderColors, this, mNext);
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}
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nsBorderColors*
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nsBorderColors::Clone(bool aDeep) const
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{
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nsBorderColors* result = new nsBorderColors(mColor);
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if (MOZ_UNLIKELY(!result)) {
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return result;
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}
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if (aDeep) {
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NS_CSS_CLONE_LIST_MEMBER(nsBorderColors, this, mNext, result, (false));
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}
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return result;
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}
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nsStyleBorder::nsStyleBorder(const nsStyleBorder& aSrc)
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: mBorderColors(nullptr)
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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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, mComputedBorder(aSrc.mComputedBorder)
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, mBorder(aSrc.mBorder)
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, mTwipsPerPixel(aSrc.mTwipsPerPixel)
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{
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MOZ_COUNT_CTOR(nsStyleBorder);
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if (aSrc.mBorderColors) {
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NS_FOR_CSS_SIDES(side) {
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CopyBorderColorsFrom(aSrc.mBorderColors[side], side);
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}
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}
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NS_FOR_CSS_SIDES(side) {
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mBorderStyle[side] = aSrc.mBorderStyle[side];
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mBorderColor[side] = aSrc.mBorderColor[side];
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}
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}
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nsStyleBorder::~nsStyleBorder()
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{
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MOZ_COUNT_DTOR(nsStyleBorder);
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if (mBorderColors) {
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for (int32_t i = 0; i < 4; i++) {
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delete mBorderColors[i];
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}
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delete [] mBorderColors;
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}
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}
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void
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nsStyleBorder::FinishStyle(nsPresContext* aPresContext)
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{
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(aPresContext->StyleSet()->IsServo());
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mBorderImageSource.ResolveImage(aPresContext);
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}
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nsMargin
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nsStyleBorder::GetImageOutset() const
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{
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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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NS_NOTREACHED("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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void
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nsStyleBorder::Destroy(nsPresContext* aContext)
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{
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this->~nsStyleBorder();
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aContext->PresShell()->
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FreeByObjectID(eArenaObjectID_nsStyleBorder, this);
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}
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nsChangeHint
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nsStyleBorder::CalcDifference(const nsStyleBorder& aNewData) const
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{
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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 |
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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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mBorderColor[ix] != aNewData.mBorderColor[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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!mBorderColors != !aNewData.mBorderColors) {
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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
|
|
// result, we have to check mBorderImage* fields even before border image was
|
|
// actually loaded.
|
|
if (!mBorderImageSource.IsEmpty() || !aNewData.mBorderImageSource.IsEmpty()) {
|
|
if (mBorderImageSource != aNewData.mBorderImageSource ||
|
|
mBorderImageRepeatH != aNewData.mBorderImageRepeatH ||
|
|
mBorderImageRepeatV != aNewData.mBorderImageRepeatV ||
|
|
mBorderImageSlice != aNewData.mBorderImageSlice ||
|
|
mBorderImageFill != aNewData.mBorderImageFill ||
|
|
mBorderImageWidth != aNewData.mBorderImageWidth) {
|
|
return nsChangeHint_RepaintFrame;
|
|
}
|
|
}
|
|
|
|
// Note that at this point if mBorderColors is non-null so is
|
|
// aNewData.mBorderColors
|
|
if (mBorderColors) {
|
|
NS_FOR_CSS_SIDES(ix) {
|
|
if (!nsBorderColors::Equal(mBorderColors[ix],
|
|
aNewData.mBorderColors[ix])) {
|
|
return nsChangeHint_RepaintFrame;
|
|
}
|
|
}
|
|
}
|
|
|
|
// mBorder is the specified border value. Changes to this don't
|
|
// need any change processing, since we operate on the computed
|
|
// border values instead.
|
|
if (mBorder != aNewData.mBorder) {
|
|
return nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
// mBorderImage* fields are checked only when border-image is not 'none'.
|
|
if (mBorderImageSource != aNewData.mBorderImageSource ||
|
|
mBorderImageRepeatH != aNewData.mBorderImageRepeatH ||
|
|
mBorderImageRepeatV != aNewData.mBorderImageRepeatV ||
|
|
mBorderImageSlice != aNewData.mBorderImageSlice ||
|
|
mBorderImageFill != aNewData.mBorderImageFill ||
|
|
mBorderImageWidth != aNewData.mBorderImageWidth) {
|
|
return nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
nsStyleOutline::nsStyleOutline(const nsPresContext* aContext)
|
|
: mOutlineWidth((StaticPresData::Get()
|
|
->GetBorderWidthTable())[NS_STYLE_BORDER_WIDTH_MEDIUM])
|
|
, mOutlineOffset(0)
|
|
, mOutlineColor(StyleComplexColor::CurrentColor())
|
|
, mOutlineStyle(NS_STYLE_BORDER_STYLE_NONE)
|
|
, mActualOutlineWidth(0)
|
|
, mTwipsPerPixel(aContext->DevPixelsToAppUnits(1))
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleOutline);
|
|
// spacing values not inherited
|
|
nsStyleCoord zero(0, nsStyleCoord::CoordConstructor);
|
|
NS_FOR_CSS_HALF_CORNERS(corner) {
|
|
mOutlineRadius.Set(corner, zero);
|
|
}
|
|
}
|
|
|
|
nsStyleOutline::nsStyleOutline(const nsStyleOutline& aSrc)
|
|
: mOutlineRadius(aSrc.mOutlineRadius)
|
|
, mOutlineWidth(aSrc.mOutlineWidth)
|
|
, mOutlineOffset(aSrc.mOutlineOffset)
|
|
, mOutlineColor(aSrc.mOutlineColor)
|
|
, mOutlineStyle(aSrc.mOutlineStyle)
|
|
, mActualOutlineWidth(aSrc.mActualOutlineWidth)
|
|
, mTwipsPerPixel(aSrc.mTwipsPerPixel)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleOutline);
|
|
}
|
|
|
|
void
|
|
nsStyleOutline::RecalcData()
|
|
{
|
|
if (NS_STYLE_BORDER_STYLE_NONE == mOutlineStyle) {
|
|
mActualOutlineWidth = 0;
|
|
} else {
|
|
mActualOutlineWidth =
|
|
NS_ROUND_BORDER_TO_PIXELS(mOutlineWidth, mTwipsPerPixel);
|
|
}
|
|
}
|
|
|
|
nsChangeHint
|
|
nsStyleOutline::CalcDifference(const nsStyleOutline& aNewData) const
|
|
{
|
|
if (mActualOutlineWidth != aNewData.mActualOutlineWidth ||
|
|
(mActualOutlineWidth > 0 &&
|
|
mOutlineOffset != aNewData.mOutlineOffset)) {
|
|
return nsChangeHint_UpdateOverflow |
|
|
nsChangeHint_SchedulePaint;
|
|
}
|
|
|
|
if (mOutlineStyle != aNewData.mOutlineStyle ||
|
|
mOutlineColor != aNewData.mOutlineColor ||
|
|
mOutlineRadius != aNewData.mOutlineRadius) {
|
|
if (mActualOutlineWidth > 0) {
|
|
return nsChangeHint_RepaintFrame;
|
|
}
|
|
return nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
if (mOutlineWidth != aNewData.mOutlineWidth ||
|
|
mOutlineOffset != aNewData.mOutlineOffset ||
|
|
mTwipsPerPixel != aNewData.mTwipsPerPixel) {
|
|
return nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleList
|
|
//
|
|
nsStyleList::nsStyleList(const nsPresContext* aContext)
|
|
: mListStylePosition(NS_STYLE_LIST_STYLE_POSITION_OUTSIDE)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleList);
|
|
if (aContext->StyleSet()->IsServo()) {
|
|
// FIXME: bug 1328319.
|
|
mCounterStyle =
|
|
CounterStyleManager::GetBuiltinStyle(NS_STYLE_LIST_STYLE_DISC);
|
|
} else {
|
|
mCounterStyle = aContext->CounterStyleManager()->
|
|
BuildCounterStyle(NS_LITERAL_STRING("disc"));
|
|
}
|
|
SetQuotesInitial();
|
|
}
|
|
|
|
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::FinishStyle(nsPresContext* aPresContext)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(aPresContext->StyleSet()->IsServo());
|
|
|
|
if (mListStyleImage && !mListStyleImage->IsResolved()) {
|
|
mListStyleImage->Resolve(aPresContext);
|
|
}
|
|
}
|
|
|
|
void
|
|
nsStyleList::SetQuotesInherit(const nsStyleList* aOther)
|
|
{
|
|
mQuotes = aOther->mQuotes;
|
|
}
|
|
|
|
void
|
|
nsStyleList::SetQuotesInitial()
|
|
{
|
|
if (!sInitialQuotes) {
|
|
// The initial value for quotes is the en-US typographic convention:
|
|
// outermost are LEFT and RIGHT DOUBLE QUOTATION MARK, alternating
|
|
// with LEFT and RIGHT SINGLE QUOTATION MARK.
|
|
static const char16_t initialQuotes[8] = {
|
|
0x201C, 0, 0x201D, 0, 0x2018, 0, 0x2019, 0
|
|
};
|
|
|
|
sInitialQuotes = new nsStyleQuoteValues;
|
|
sInitialQuotes->mQuotePairs.AppendElement(
|
|
std::make_pair(nsDependentString(&initialQuotes[0], 1),
|
|
nsDependentString(&initialQuotes[2], 1)));
|
|
sInitialQuotes->mQuotePairs.AppendElement(
|
|
std::make_pair(nsDependentString(&initialQuotes[4], 1),
|
|
nsDependentString(&initialQuotes[6], 1)));
|
|
}
|
|
|
|
mQuotes = sInitialQuotes;
|
|
}
|
|
|
|
void
|
|
nsStyleList::SetQuotesNone()
|
|
{
|
|
if (!sNoneQuotes) {
|
|
sNoneQuotes = new nsStyleQuoteValues;
|
|
}
|
|
mQuotes = sNoneQuotes;
|
|
}
|
|
|
|
void
|
|
nsStyleList::SetQuotes(nsStyleQuoteValues::QuotePairArray&& aValues)
|
|
{
|
|
mQuotes = new nsStyleQuoteValues;
|
|
mQuotes->mQuotePairs = Move(aValues);
|
|
}
|
|
|
|
const nsStyleQuoteValues::QuotePairArray&
|
|
nsStyleList::GetQuotePairs() const
|
|
{
|
|
return mQuotes->mQuotePairs;
|
|
}
|
|
|
|
nsChangeHint
|
|
nsStyleList::CalcDifference(const nsStyleList& aNewData) 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 &&
|
|
(mQuotes || aNewData.mQuotes) &&
|
|
GetQuotePairs() != aNewData.GetQuotePairs()) {
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
if (mListStylePosition != aNewData.mListStylePosition) {
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
if (DefinitelyEqualImages(mListStyleImage, aNewData.mListStyleImage) &&
|
|
mCounterStyle == aNewData.mCounterStyle) {
|
|
if (mImageRegion.IsEqualInterior(aNewData.mImageRegion)) {
|
|
return nsChangeHint(0);
|
|
}
|
|
if (mImageRegion.width == aNewData.mImageRegion.width &&
|
|
mImageRegion.height == aNewData.mImageRegion.height) {
|
|
return NS_STYLE_HINT_VISUAL;
|
|
}
|
|
}
|
|
return NS_STYLE_HINT_REFLOW;
|
|
}
|
|
|
|
already_AddRefed<nsIURI>
|
|
nsStyleList::GetListStyleImageURI() const
|
|
{
|
|
if (!mListStyleImage) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsCOMPtr<nsIURI> uri = mListStyleImage->GetImageURI();
|
|
return uri.forget();
|
|
}
|
|
|
|
StaticRefPtr<nsStyleQuoteValues>
|
|
nsStyleList::sInitialQuotes;
|
|
|
|
StaticRefPtr<nsStyleQuoteValues>
|
|
nsStyleList::sNoneQuotes;
|
|
|
|
|
|
// --------------------
|
|
// nsStyleXUL
|
|
//
|
|
nsStyleXUL::nsStyleXUL(const nsPresContext* aContext)
|
|
: mBoxFlex(0.0f)
|
|
, mBoxOrdinal(1)
|
|
, mBoxAlign(StyleBoxAlign::Stretch)
|
|
, mBoxDirection(StyleBoxDirection::Normal)
|
|
, mBoxOrient(StyleBoxOrient::Horizontal)
|
|
, mBoxPack(StyleBoxPack::Start)
|
|
, mStretchStack(true)
|
|
{
|
|
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)
|
|
, mStretchStack(aSource.mStretchStack)
|
|
{
|
|
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 &&
|
|
mStretchStack == aNewData.mStretchStack) {
|
|
return nsChangeHint(0);
|
|
}
|
|
if (mBoxOrdinal != aNewData.mBoxOrdinal) {
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
return NS_STYLE_HINT_REFLOW;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleColumn
|
|
//
|
|
/* static */ const uint32_t nsStyleColumn::kMaxColumnCount;
|
|
|
|
nsStyleColumn::nsStyleColumn(const nsPresContext* aContext)
|
|
: mColumnCount(NS_STYLE_COLUMN_COUNT_AUTO)
|
|
, mColumnWidth(eStyleUnit_Auto)
|
|
, mColumnGap(eStyleUnit_Normal)
|
|
, mColumnRuleColor(StyleComplexColor::CurrentColor())
|
|
, mColumnRuleStyle(NS_STYLE_BORDER_STYLE_NONE)
|
|
, mColumnFill(NS_STYLE_COLUMN_FILL_BALANCE)
|
|
, mColumnSpan(NS_STYLE_COLUMN_SPAN_NONE)
|
|
, mColumnRuleWidth((StaticPresData::Get()
|
|
->GetBorderWidthTable())[NS_STYLE_BORDER_WIDTH_MEDIUM])
|
|
, mTwipsPerPixel(aContext->AppUnitsPerDevPixel())
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleColumn);
|
|
}
|
|
|
|
nsStyleColumn::~nsStyleColumn()
|
|
{
|
|
MOZ_COUNT_DTOR(nsStyleColumn);
|
|
}
|
|
|
|
nsStyleColumn::nsStyleColumn(const nsStyleColumn& aSource)
|
|
: mColumnCount(aSource.mColumnCount)
|
|
, mColumnWidth(aSource.mColumnWidth)
|
|
, mColumnGap(aSource.mColumnGap)
|
|
, 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 ||
|
|
mColumnGap != aNewData.mColumnGap ||
|
|
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 nsPresContext* aContext)
|
|
: 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;
|
|
}
|
|
NS_NOTREACHED("unexpected type");
|
|
return eCSSKeyword_UNKNOWN;
|
|
}
|
|
|
|
// --------------------
|
|
// 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 nsPresContext* aContext)
|
|
: mMask(nsStyleImageLayers::LayerType::Mask)
|
|
, mStopColor(NS_RGB(0, 0, 0))
|
|
, mFloodColor(NS_RGB(0, 0, 0))
|
|
, mLightingColor(NS_RGB(255, 255, 255))
|
|
, 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::Destroy(nsPresContext* aContext)
|
|
{
|
|
this->~nsStyleSVGReset();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleSVGReset, this);
|
|
}
|
|
|
|
void
|
|
nsStyleSVGReset::FinishStyle(nsPresContext* aPresContext)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(aPresContext->StyleSet()->IsServo());
|
|
|
|
mMask.ResolveImages(aPresContext);
|
|
}
|
|
|
|
nsChangeHint
|
|
nsStyleSVGReset::CalcDifference(const nsStyleSVGReset& aNewData) const
|
|
{
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
if (!mClipPath.DefinitelyEquals(aNewData.mClipPath)) {
|
|
hint |= nsChangeHint_UpdateEffects |
|
|
nsChangeHint_RepaintFrame;
|
|
// clip-path changes require that we update the PreEffectsBBoxProperty,
|
|
// which is done during overflow computation.
|
|
hint |= nsChangeHint_UpdateOverflow;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
if (HasMask() != aNewData.HasMask()) {
|
|
// A change from/to being a containing block for position:fixed.
|
|
hint |= nsChangeHint_UpdateContainingBlock;
|
|
}
|
|
|
|
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)
|
|
: mType(aType)
|
|
, mFallbackType(eStyleSVGFallbackType_NotSet)
|
|
, mFallbackColor(NS_RGB(0, 0, 0))
|
|
{
|
|
MOZ_ASSERT(aType == nsStyleSVGPaintType(0) ||
|
|
aType == eStyleSVGPaintType_None ||
|
|
aType == eStyleSVGPaintType_Color);
|
|
mPaint.mColor = NS_RGB(0, 0, 0);
|
|
}
|
|
|
|
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 = NS_RGB(0, 0, 0);
|
|
break;
|
|
case eStyleSVGPaintType_Server:
|
|
mPaint.mPaintServer->Release();
|
|
mPaint.mPaintServer = nullptr;
|
|
MOZ_FALLTHROUGH;
|
|
case eStyleSVGPaintType_ContextFill:
|
|
case eStyleSVGPaintType_ContextStroke:
|
|
mFallbackType = eStyleSVGFallbackType_NotSet;
|
|
mFallbackColor = NS_RGB(0, 0, 0);
|
|
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,
|
|
nscolor aFallbackColor)
|
|
{
|
|
MOZ_ASSERT(aType == eStyleSVGPaintType_ContextFill ||
|
|
aType == eStyleSVGPaintType_ContextStroke);
|
|
Reset();
|
|
mType = aType;
|
|
mFallbackType = aFallbackType;
|
|
mFallbackColor = aFallbackColor;
|
|
}
|
|
|
|
void
|
|
nsStyleSVGPaint::SetColor(nscolor aColor)
|
|
{
|
|
Reset();
|
|
mType = eStyleSVGPaintType_Color;
|
|
mPaint.mColor = aColor;
|
|
}
|
|
|
|
void
|
|
nsStyleSVGPaint::SetPaintServer(css::URLValue* aPaintServer,
|
|
nsStyleSVGFallbackType aFallbackType,
|
|
nscolor 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 nsPresContext* aContext)
|
|
: mWidth(eStyleUnit_Auto)
|
|
, mMinWidth(eStyleUnit_Auto)
|
|
, mMaxWidth(eStyleUnit_None)
|
|
, mHeight(eStyleUnit_Auto)
|
|
, mMinHeight(eStyleUnit_Auto)
|
|
, mMaxHeight(eStyleUnit_None)
|
|
, mFlexBasis(eStyleUnit_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)
|
|
, mJustifyItems(NS_STYLE_JUSTIFY_AUTO)
|
|
, 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)
|
|
, mGridColumnGap(nscoord(0), nsStyleCoord::CoordConstructor)
|
|
, mGridRowGap(nscoord(0), nsStyleCoord::CoordConstructor)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStylePosition);
|
|
|
|
// positioning values not inherited
|
|
|
|
mObjectPosition.SetInitialPercentValues(0.5f);
|
|
|
|
nsStyleCoord autoCoord(eStyleUnit_Auto);
|
|
NS_FOR_CSS_SIDES(side) {
|
|
mOffset.Set(side, autoCoord);
|
|
}
|
|
|
|
// 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)
|
|
, 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)
|
|
, mGridTemplateColumns(aSource.mGridTemplateColumns)
|
|
, mGridTemplateRows(aSource.mGridTemplateRows)
|
|
, mGridTemplateAreas(aSource.mGridTemplateAreas)
|
|
, mGridColumnStart(aSource.mGridColumnStart)
|
|
, mGridColumnEnd(aSource.mGridColumnEnd)
|
|
, mGridRowStart(aSource.mGridRowStart)
|
|
, mGridRowEnd(aSource.mGridRowEnd)
|
|
, mGridColumnGap(aSource.mGridColumnGap)
|
|
, mGridRowGap(aSource.mGridRowGap)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStylePosition);
|
|
}
|
|
|
|
static bool
|
|
IsAutonessEqual(const nsStyleSides& aSides1, const nsStyleSides& aSides2)
|
|
{
|
|
NS_FOR_CSS_SIDES(side) {
|
|
if ((aSides1.GetUnit(side) == eStyleUnit_Auto) !=
|
|
(aSides2.GetUnit(side) == eStyleUnit_Auto)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
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 (mGridTemplateColumns != aNewData.mGridTemplateColumns ||
|
|
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 ||
|
|
mGridColumnGap != aNewData.mGridColumnGap ||
|
|
mGridRowGap != aNewData.mGridRowGap) {
|
|
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;
|
|
}
|
|
|
|
// '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;
|
|
|
|
// If aOldStyleVisibility is null, we don't need to bother with any of
|
|
// these tests, since we know that the element never had its
|
|
// nsStyleVisibility accessed, which means it couldn't have done
|
|
// layout.
|
|
// Note that we pass an nsStyleVisibility here because we don't want
|
|
// to cause a new struct to be computed during
|
|
// nsStyleContext::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.
|
|
if (aOldStyleVisibility) {
|
|
bool isVertical = WritingMode(aOldStyleVisibility).IsVertical();
|
|
if (isVertical ? widthChanged : heightChanged) {
|
|
// Block-size changes can affect descendant intrinsic sizes due to
|
|
// replaced elements with percentage bsizes in descendants which
|
|
// also have percentage bsizes. This is handled via
|
|
// nsChangeHint_UpdateComputedBSize which clears intrinsic sizes
|
|
// for frames that have such replaced elements.
|
|
//
|
|
// We need to use nsChangeHint_ClearAncestorIntrinsics for
|
|
// block-size changes so we clear results of cached CSS Flex
|
|
// measuring reflows.
|
|
hint |= nsChangeHint_NeedReflow |
|
|
nsChangeHint_UpdateComputedBSize |
|
|
nsChangeHint_ReflowChangesSizeOrPosition |
|
|
nsChangeHint_ClearAncestorIntrinsics;
|
|
}
|
|
|
|
if (isVertical ? heightChanged : widthChanged) {
|
|
// None of our inline-size differences can affect descendant
|
|
// intrinsic sizes and none of them need to force children to
|
|
// reflow.
|
|
hint |= nsChangeHint_AllReflowHints &
|
|
~(nsChangeHint_ClearDescendantIntrinsics |
|
|
nsChangeHint_NeedDirtyReflow);
|
|
}
|
|
} else {
|
|
if (widthChanged || heightChanged) {
|
|
hint |= nsChangeHint_NeutralChange;
|
|
}
|
|
}
|
|
|
|
// 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;
|
|
}
|
|
|
|
/* static */ bool
|
|
nsStylePosition::WidthCoordDependsOnContainer(const nsStyleCoord &aCoord)
|
|
{
|
|
return aCoord.HasPercent() ||
|
|
(aCoord.GetUnit() == eStyleUnit_Enumerated &&
|
|
(aCoord.GetIntValue() == NS_STYLE_WIDTH_FIT_CONTENT ||
|
|
aCoord.GetIntValue() == NS_STYLE_WIDTH_AVAILABLE));
|
|
}
|
|
|
|
uint8_t
|
|
nsStylePosition::UsedAlignSelf(nsStyleContext* 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::ComputedJustifyItems(nsStyleContext* aParent) const
|
|
{
|
|
if (mJustifyItems != NS_STYLE_JUSTIFY_AUTO) {
|
|
return mJustifyItems;
|
|
}
|
|
if (MOZ_LIKELY(aParent)) {
|
|
auto inheritedJustifyItems = aParent->StylePosition()->ComputedJustifyItems(
|
|
aParent->GetParentAllowServo());
|
|
// "If the inherited value of justify-items includes the 'legacy' keyword,
|
|
// 'auto' computes to the inherited value." Otherwise, 'normal'.
|
|
if (inheritedJustifyItems & NS_STYLE_JUSTIFY_LEGACY) {
|
|
return inheritedJustifyItems;
|
|
}
|
|
}
|
|
return NS_STYLE_JUSTIFY_NORMAL;
|
|
}
|
|
|
|
uint8_t
|
|
nsStylePosition::UsedJustifySelf(nsStyleContext* aParent) const
|
|
{
|
|
if (mJustifySelf != NS_STYLE_JUSTIFY_AUTO) {
|
|
return mJustifySelf;
|
|
}
|
|
if (MOZ_LIKELY(aParent)) {
|
|
auto inheritedJustifyItems = aParent->StylePosition()->ComputedJustifyItems(
|
|
aParent->GetParentAllowServo());
|
|
return inheritedJustifyItems & ~NS_STYLE_JUSTIFY_LEGACY;
|
|
}
|
|
return NS_STYLE_JUSTIFY_NORMAL;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleTable
|
|
//
|
|
|
|
nsStyleTable::nsStyleTable(const nsPresContext* aContext)
|
|
: 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 nsPresContext* aContext)
|
|
: 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
|
|
//
|
|
|
|
nsStyleColor::nsStyleColor(const nsPresContext* aContext)
|
|
: mColor(aContext->DefaultColor())
|
|
{
|
|
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 (NS_GET_A(mStops[i].mColor) < 255) {
|
|
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,
|
|
* mImageValue 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<css::ImageValue> aImageValue,
|
|
already_AddRefed<ImageTracker> aImageTracker)
|
|
: mModeFlags(aModeFlags)
|
|
, mRequestProxy(aRequestProxy)
|
|
, mImageValue(aImageValue)
|
|
, 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(mImageValue->mRequests.Count() == 0 || NS_IsMainThread(),
|
|
"If mImageValue has any mRequests, we need to run on main "
|
|
"thread to release ImageValues!");
|
|
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<css::ImageValue> mImageValue;
|
|
RefPtr<ImageTracker> mImageTracker;
|
|
};
|
|
|
|
nsStyleImageRequest::nsStyleImageRequest(Mode aModeFlags,
|
|
imgRequestProxy* aRequestProxy,
|
|
css::ImageValue* aImageValue,
|
|
ImageTracker* aImageTracker)
|
|
: mRequestProxy(aRequestProxy)
|
|
, mImageValue(aImageValue)
|
|
, mImageTracker(aImageTracker)
|
|
, mModeFlags(aModeFlags)
|
|
, mResolved(true)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(aImageValue);
|
|
MOZ_ASSERT(!!(aModeFlags & Mode::Track) == !!aImageTracker);
|
|
|
|
if (mRequestProxy) {
|
|
MaybeTrackAndLock();
|
|
}
|
|
}
|
|
|
|
nsStyleImageRequest::nsStyleImageRequest(
|
|
Mode aModeFlags,
|
|
const nsAString& aURL,
|
|
already_AddRefed<URLExtraData> aExtraData)
|
|
: mImageValue(new css::ImageValue(aURL, Move(aExtraData)))
|
|
, 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 mImageValue, all on the main thread.
|
|
{
|
|
RefPtr<StyleImageRequestCleanupTask> task =
|
|
new StyleImageRequestCleanupTask(mModeFlags,
|
|
mRequestProxy.forget(),
|
|
mImageValue.forget(),
|
|
mImageTracker.forget());
|
|
if (NS_IsMainThread() || !IsResolved()) {
|
|
task->Run();
|
|
} else {
|
|
MOZ_ASSERT(IsResolved() == bool(mDocGroup),
|
|
"We forgot to cache mDocGroup in Resolve()?");
|
|
mDocGroup->Dispatch("StyleImageRequestCleanupTask",
|
|
TaskCategory::Other, task.forget());
|
|
}
|
|
}
|
|
|
|
MOZ_ASSERT(!mRequestProxy);
|
|
MOZ_ASSERT(!mImageValue);
|
|
MOZ_ASSERT(!mImageTracker);
|
|
}
|
|
|
|
bool
|
|
nsStyleImageRequest::Resolve(nsPresContext* aPresContext)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(!IsResolved(), "already resolved");
|
|
MOZ_ASSERT(aPresContext);
|
|
|
|
mResolved = true;
|
|
|
|
nsIDocument* doc = aPresContext->Document();
|
|
nsIURI* docURI = doc->GetDocumentURI();
|
|
if (GetImageValue()->HasRef()) {
|
|
bool isEqualExceptRef = false;
|
|
RefPtr<nsIURI> imageURI = GetImageURI();
|
|
imageURI->EqualsExceptRef(docURI, &isEqualExceptRef);
|
|
if (isEqualExceptRef) {
|
|
// Prevent loading an internal resource.
|
|
return true;
|
|
}
|
|
}
|
|
|
|
mDocGroup = doc->GetDocGroup();
|
|
|
|
// For now, just have unique nsCSSValue/ImageValue objects. We should
|
|
// really store the ImageValue on the Servo specified value, so that we can
|
|
// share imgRequestProxys that come from the same rule in the same
|
|
// document.
|
|
mImageValue->Initialize(doc);
|
|
|
|
nsCSSValue value;
|
|
value.SetImageValue(mImageValue);
|
|
mRequestProxy = value.GetPossiblyStaticImageValue(aPresContext->Document(),
|
|
aPresContext);
|
|
|
|
if (!mRequestProxy) {
|
|
// The URL resolution or image load failed.
|
|
return false;
|
|
}
|
|
|
|
if (mModeFlags & Mode::Track) {
|
|
mImageTracker = aPresContext->Document()->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
|
|
{
|
|
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)
|
|
, 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(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) {
|
|
NS_RELEASE(mURLValue);
|
|
}
|
|
|
|
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<nsIAtom> aElementId)
|
|
{
|
|
if (mType != eStyleImageType_Null) {
|
|
SetNull();
|
|
}
|
|
|
|
if (nsCOMPtr<nsIAtom> atom = aElementId) {
|
|
mElementId = atom.forget().take();
|
|
mType = eStyleImageType_Element;
|
|
}
|
|
}
|
|
|
|
void
|
|
nsStyleImage::SetCropRect(UniquePtr<nsStyleSides> aCropRect)
|
|
{
|
|
mCropRect = Move(aCropRect);
|
|
}
|
|
|
|
void
|
|
nsStyleImage::SetURLValue(already_AddRefed<URLValue> aValue)
|
|
{
|
|
RefPtr<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:
|
|
NS_NOTREACHED("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: {
|
|
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:
|
|
NS_NOTREACHED("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:
|
|
NS_NOTREACHED("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();
|
|
}
|
|
|
|
css::URLValueData*
|
|
nsStyleImage::GetURLValue() const
|
|
{
|
|
if (mType == eStyleImageType_Image) {
|
|
return mImage->GetImageValue();
|
|
} else 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
|
|
};
|
|
|
|
#ifdef MOZ_ENABLE_MASK_AS_SHORTHAND
|
|
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
|
|
};
|
|
#endif
|
|
|
|
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 = 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)
|
|
{
|
|
if (aPosition.mXPosition.mPercent == 0.0f &&
|
|
aPosition.mXPosition.mLength == 0 &&
|
|
aPosition.mXPosition.mHasPercent &&
|
|
aPosition.mYPosition.mPercent == 0.0f &&
|
|
aPosition.mYPosition.mLength == 0 &&
|
|
aPosition.mYPosition.mHasPercent) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void
|
|
Position::SetInitialPercentValues(float aPercentVal)
|
|
{
|
|
mXPosition.mPercent = aPercentVal;
|
|
mXPosition.mLength = 0;
|
|
mXPosition.mHasPercent = true;
|
|
mYPosition.mPercent = aPercentVal;
|
|
mYPosition.mLength = 0;
|
|
mYPosition.mHasPercent = true;
|
|
}
|
|
|
|
void
|
|
Position::SetInitialZeroValues()
|
|
{
|
|
mXPosition.mPercent = 0;
|
|
mXPosition.mLength = 0;
|
|
mXPosition.mHasPercent = false;
|
|
mYPosition.mPercent = 0;
|
|
mYPosition.mLength = 0;
|
|
mYPosition.mHasPercent = false;
|
|
}
|
|
|
|
bool
|
|
nsStyleImageLayers::Size::DependsOnPositioningAreaSize(const nsStyleImage& aImage) const
|
|
{
|
|
MOZ_ASSERT(aImage.GetType() != eStyleImageType_Null,
|
|
"caller should have handled this");
|
|
|
|
// If either dimension contains a non-zero percentage, rendering for that
|
|
// dimension straightforwardly depends on frame size.
|
|
if ((mWidthType == eLengthPercentage && mWidth.mPercent != 0.0f) ||
|
|
(mHeightType == eLengthPercentage && mHeight.mPercent != 0.0f)) {
|
|
return true;
|
|
}
|
|
|
|
// So too for contain and cover.
|
|
if (mWidthType == eContain || mWidthType == eCover) {
|
|
return true;
|
|
}
|
|
|
|
// If both dimensions are fixed lengths, there's no dependency.
|
|
if (mWidthType == eLengthPercentage && mHeightType == eLengthPercentage) {
|
|
return false;
|
|
}
|
|
|
|
MOZ_ASSERT((mWidthType == eLengthPercentage && mHeightType == eAuto) ||
|
|
(mWidthType == eAuto && mHeightType == eLengthPercentage) ||
|
|
(mWidthType == eAuto && mHeightType == eAuto),
|
|
"logic error");
|
|
|
|
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 mWidthType == mHeightType;
|
|
}
|
|
|
|
// Otherwise, rendering depends on frame size when the image dimensions
|
|
// and background-size don't complement each other.
|
|
return !(hasWidth && mHeightType == eLengthPercentage) &&
|
|
!(hasHeight && mWidthType == eLengthPercentage);
|
|
}
|
|
} else {
|
|
NS_NOTREACHED("missed an enum value");
|
|
}
|
|
|
|
// Passed the gauntlet: no dependency.
|
|
return false;
|
|
}
|
|
|
|
void
|
|
nsStyleImageLayers::Size::SetInitialValues()
|
|
{
|
|
mWidthType = mHeightType = eAuto;
|
|
}
|
|
|
|
bool
|
|
nsStyleImageLayers::Size::operator==(const Size& aOther) const
|
|
{
|
|
MOZ_ASSERT(mWidthType < eDimensionType_COUNT,
|
|
"bad mWidthType for this");
|
|
MOZ_ASSERT(mHeightType < eDimensionType_COUNT,
|
|
"bad mHeightType for this");
|
|
MOZ_ASSERT(aOther.mWidthType < eDimensionType_COUNT,
|
|
"bad mWidthType for aOther");
|
|
MOZ_ASSERT(aOther.mHeightType < eDimensionType_COUNT,
|
|
"bad mHeightType for aOther");
|
|
|
|
return mWidthType == aOther.mWidthType &&
|
|
mHeightType == aOther.mHeightType &&
|
|
(mWidthType != eLengthPercentage || mWidth == aOther.mWidth) &&
|
|
(mHeightType != eLengthPercentage || mHeight == aOther.mHeight);
|
|
}
|
|
|
|
nsStyleImageLayers::Layer::Layer()
|
|
: mClip(StyleGeometryBox::BorderBox)
|
|
, mAttachment(NS_STYLE_IMAGELAYER_ATTACHMENT_SCROLL)
|
|
, mBlendMode(NS_STYLE_BLEND_NORMAL)
|
|
, mComposite(NS_STYLE_MASK_COMPOSITE_ADD)
|
|
, mMaskMode(NS_STYLE_MASK_MODE_MATCH_SOURCE)
|
|
{
|
|
mImage.SetNull();
|
|
mSize.SetInitialValues();
|
|
}
|
|
|
|
nsStyleImageLayers::Layer::~Layer()
|
|
{
|
|
}
|
|
|
|
void
|
|
nsStyleImageLayers::Layer::Initialize(nsStyleImageLayers::LayerType aType)
|
|
{
|
|
mRepeat.SetInitialValues();
|
|
|
|
mPosition.SetInitialPercentValues(0.0f);
|
|
|
|
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() ||
|
|
mSize.DependsOnPositioningAreaSize(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;
|
|
}
|
|
|
|
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;
|
|
|
|
// If mImage links to an SVG mask, the URL in mImage must have a fragment.
|
|
// Not vice versa.
|
|
// Here are examples of URI contains a fragment, two of them link to an
|
|
// SVG mask:
|
|
// mask:url(a.svg#maskID); // The fragment of this URI is an ID of a mask
|
|
// // element in a.svg.
|
|
// mask:url(#localMaskID); // The fragment of this URI is an ID of a mask
|
|
// // element in local document.
|
|
// mask:url(b.svg#viewBoxID); // The fragment of this URI is an ID of a
|
|
// // viewbox defined in b.svg.
|
|
// That is, if the URL in mImage has a fragment, it may link to an SVG
|
|
// mask; If not, it "must" not link to an SVG mask.
|
|
bool maybeSVGMask = false;
|
|
if (mImage.GetURLValue()) {
|
|
maybeSVGMask = mImage.GetURLValue()->MightHaveRef();
|
|
}
|
|
|
|
if (!maybeSVGMask && aNewLayer.mImage.GetURLValue()) {
|
|
maybeSVGMask = aNewLayer.mImage.GetURLValue()->MightHaveRef();
|
|
}
|
|
|
|
// Return nsChangeHint_UpdateOverflow if either URI might link to an SVG
|
|
// mask.
|
|
if (maybeSVGMask) {
|
|
// Mask changes require that we update the PreEffectsBBoxProperty,
|
|
// which is done during overflow computation.
|
|
hint |= nsChangeHint_UpdateOverflow;
|
|
}
|
|
} 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 nsPresContext* aContext)
|
|
: mImage(nsStyleImageLayers::LayerType::Background)
|
|
, mBackgroundColor(StyleComplexColor::FromColor(NS_RGBA(0, 0, 0, 0)))
|
|
{
|
|
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::Destroy(nsPresContext* aContext)
|
|
{
|
|
this->~nsStyleBackground();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(eArenaObjectID_nsStyleBackground, this);
|
|
}
|
|
|
|
void
|
|
nsStyleBackground::FinishStyle(nsPresContext* aPresContext)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(aPresContext->StyleSet()->IsServo());
|
|
|
|
mImage.ResolveImages(aPresContext);
|
|
}
|
|
|
|
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 == NS_STYLE_IMAGELAYER_ATTACHMENT_FIXED &&
|
|
!layer.mImage.IsEmpty() &&
|
|
!nsLayoutUtils::IsTransformed(aFrame)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
nscolor
|
|
nsStyleBackground::BackgroundColor(const nsIFrame* aFrame) const
|
|
{
|
|
return BackgroundColor(aFrame->StyleContext());
|
|
}
|
|
|
|
nscolor
|
|
nsStyleBackground::BackgroundColor(nsStyleContext* aContext) const
|
|
{
|
|
// In majority of cases, background-color should just be a numeric color.
|
|
// In that case, we can skip resolving StyleColor().
|
|
return mBackgroundColor.IsNumericColor()
|
|
? mBackgroundColor.mColor
|
|
: aContext->StyleColor()->CalcComplexColor(mBackgroundColor);
|
|
}
|
|
|
|
bool
|
|
nsStyleBackground::IsTransparent(const nsIFrame* aFrame) const
|
|
{
|
|
return IsTransparent(aFrame->StyleContext());
|
|
}
|
|
|
|
bool
|
|
nsStyleBackground::IsTransparent(nsStyleContext* aContext) const
|
|
{
|
|
return BottomLayer().mImage.IsEmpty() &&
|
|
mImage.mImageCount == 1 &&
|
|
NS_GET_A(BackgroundColor(aContext)) == 0;
|
|
}
|
|
|
|
void
|
|
nsTimingFunction::AssignFromKeyword(int32_t aTimingFunctionType)
|
|
{
|
|
switch (aTimingFunctionType) {
|
|
case NS_STYLE_TRANSITION_TIMING_FUNCTION_STEP_START:
|
|
mType = Type::StepStart;
|
|
mStepsOrFrames = 1;
|
|
return;
|
|
default:
|
|
MOZ_FALLTHROUGH_ASSERT("aTimingFunctionType must be a keyword value");
|
|
case NS_STYLE_TRANSITION_TIMING_FUNCTION_STEP_END:
|
|
mType = Type::StepEnd;
|
|
mStepsOrFrames = 1;
|
|
return;
|
|
case NS_STYLE_TRANSITION_TIMING_FUNCTION_EASE:
|
|
case NS_STYLE_TRANSITION_TIMING_FUNCTION_LINEAR:
|
|
case NS_STYLE_TRANSITION_TIMING_FUNCTION_EASE_IN:
|
|
case NS_STYLE_TRANSITION_TIMING_FUNCTION_EASE_OUT:
|
|
case NS_STYLE_TRANSITION_TIMING_FUNCTION_EASE_IN_OUT:
|
|
mType = static_cast<Type>(aTimingFunctionType);
|
|
break;
|
|
}
|
|
|
|
static_assert(NS_STYLE_TRANSITION_TIMING_FUNCTION_EASE == 0 &&
|
|
NS_STYLE_TRANSITION_TIMING_FUNCTION_LINEAR == 1 &&
|
|
NS_STYLE_TRANSITION_TIMING_FUNCTION_EASE_IN == 2 &&
|
|
NS_STYLE_TRANSITION_TIMING_FUNCTION_EASE_OUT == 3 &&
|
|
NS_STYLE_TRANSITION_TIMING_FUNCTION_EASE_IN_OUT == 4,
|
|
"transition timing function constants not as expected");
|
|
|
|
static const float timingFunctionValues[5][4] = {
|
|
{ 0.25f, 0.10f, 0.25f, 1.00f }, // ease
|
|
{ 0.00f, 0.00f, 1.00f, 1.00f }, // linear
|
|
{ 0.42f, 0.00f, 1.00f, 1.00f }, // ease-in
|
|
{ 0.00f, 0.00f, 0.58f, 1.00f }, // ease-out
|
|
{ 0.42f, 0.00f, 0.58f, 1.00f } // ease-in-out
|
|
};
|
|
|
|
MOZ_ASSERT(0 <= aTimingFunctionType && aTimingFunctionType < 5,
|
|
"keyword out of range");
|
|
mFunc.mX1 = timingFunctionValues[aTimingFunctionType][0];
|
|
mFunc.mY1 = timingFunctionValues[aTimingFunctionType][1];
|
|
mFunc.mX2 = timingFunctionValues[aTimingFunctionType][2];
|
|
mFunc.mY2 = timingFunctionValues[aTimingFunctionType][3];
|
|
}
|
|
|
|
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(NS_STYLE_TRANSITION_TIMING_FUNCTION_EASE);
|
|
mDuration = 0.0;
|
|
mDelay = 0.0;
|
|
mProperty = eCSSPropertyExtra_all_properties;
|
|
}
|
|
|
|
void
|
|
StyleTransition::SetUnknownProperty(nsCSSPropertyID aProperty,
|
|
const nsAString& aPropertyString)
|
|
{
|
|
MOZ_ASSERT(nsCSSProps::LookupProperty(aPropertyString,
|
|
CSSEnabledState::eForAllContent) ==
|
|
aProperty,
|
|
"property and property string should match");
|
|
nsCOMPtr<nsIAtom> temp = NS_Atomize(aPropertyString);
|
|
SetUnknownProperty(aProperty, temp);
|
|
}
|
|
|
|
void
|
|
StyleTransition::SetUnknownProperty(nsCSSPropertyID aProperty,
|
|
nsIAtom* aPropertyString)
|
|
{
|
|
MOZ_ASSERT(aProperty == eCSSProperty_UNKNOWN ||
|
|
aProperty == eCSSPropertyExtra_variable,
|
|
"should be either unknown or custom property");
|
|
mProperty = aProperty;
|
|
mUnknownProperty = aPropertyString;
|
|
}
|
|
|
|
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(NS_STYLE_TRANSITION_TIMING_FUNCTION_EASE);
|
|
mDuration = 0.0;
|
|
mDelay = 0.0;
|
|
mName = EmptyString();
|
|
mDirection = dom::PlaybackDirection::Normal;
|
|
mFillMode = dom::FillMode::None;
|
|
mPlayState = NS_STYLE_ANIMATION_PLAY_STATE_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 nsPresContext* aContext)
|
|
: mDisplay(StyleDisplay::Inline)
|
|
, mOriginalDisplay(StyleDisplay::Inline)
|
|
, mContain(NS_STYLE_CONTAIN_NONE)
|
|
, mMozAppearance(NS_THEME_NONE)
|
|
, mAppearance(NS_THEME_NONE)
|
|
, mPosition(NS_STYLE_POSITION_STATIC)
|
|
, mFloat(StyleFloat::None)
|
|
, mOriginalFloat(StyleFloat::None)
|
|
, mBreakType(StyleClear::None)
|
|
, mBreakInside(NS_STYLE_PAGE_BREAK_AUTO)
|
|
, mBreakBefore(false)
|
|
, mBreakAfter(false)
|
|
, mOverflowX(NS_STYLE_OVERFLOW_VISIBLE)
|
|
, mOverflowY(NS_STYLE_OVERFLOW_VISIBLE)
|
|
, mOverflowClipBox(NS_STYLE_OVERFLOW_CLIP_BOX_PADDING_BOX)
|
|
, mResize(NS_STYLE_RESIZE_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)
|
|
, mScrollSnapTypeX(NS_STYLE_SCROLL_SNAP_TYPE_NONE)
|
|
, mScrollSnapTypeY(NS_STYLE_SCROLL_SNAP_TYPE_NONE)
|
|
, mScrollSnapPointsX(eStyleUnit_None)
|
|
, mScrollSnapPointsY(eStyleUnit_None)
|
|
, mBackfaceVisibility(NS_STYLE_BACKFACE_VISIBILITY_VISIBLE)
|
|
, mTransformStyle(NS_STYLE_TRANSFORM_STYLE_FLAT)
|
|
, mTransformBox(StyleGeometryBox::BorderBox)
|
|
, mSpecifiedTransform(nullptr)
|
|
, 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)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleDisplay);
|
|
|
|
// Initial value for mScrollSnapDestination is "0px 0px"
|
|
mScrollSnapDestination.SetInitialZeroValues();
|
|
|
|
mTransitions[0].SetInitialValues();
|
|
mAnimations[0].SetInitialValues();
|
|
}
|
|
|
|
nsStyleDisplay::nsStyleDisplay(const nsStyleDisplay& aSource)
|
|
: mBinding(aSource.mBinding)
|
|
, mDisplay(aSource.mDisplay)
|
|
, mOriginalDisplay(aSource.mOriginalDisplay)
|
|
, mContain(aSource.mContain)
|
|
, mMozAppearance(aSource.mMozAppearance)
|
|
, 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)
|
|
, mOverflowClipBox(aSource.mOverflowClipBox)
|
|
, mResize(aSource.mResize)
|
|
, mOrient(aSource.mOrient)
|
|
, mIsolation(aSource.mIsolation)
|
|
, mTopLayer(aSource.mTopLayer)
|
|
, mWillChangeBitField(aSource.mWillChangeBitField)
|
|
, mWillChange(aSource.mWillChange)
|
|
, mTouchAction(aSource.mTouchAction)
|
|
, mScrollBehavior(aSource.mScrollBehavior)
|
|
, 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)
|
|
, 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)
|
|
, mShapeOutside(aSource.mShapeOutside)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleDisplay);
|
|
}
|
|
|
|
nsStyleDisplay::~nsStyleDisplay()
|
|
{
|
|
// 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 (mSpecifiedTransform && ServoStyleSet::IsInServoTraversal()) {
|
|
// The default behavior of NS_ReleaseOnMainThread 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_ReleaseOnMainThread(mSpecifiedTransform.forget(), alwaysProxy);
|
|
}
|
|
|
|
MOZ_COUNT_DTOR(nsStyleDisplay);
|
|
}
|
|
|
|
nsChangeHint
|
|
nsStyleDisplay::CalcDifference(const nsStyleDisplay& aNewData) const
|
|
{
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
if (!DefinitelyEqualURIsAndPrincipal(mBinding.ForceGet(), aNewData.mBinding.ForceGet())
|
|
|| mPosition != aNewData.mPosition
|
|
|| mDisplay != aNewData.mDisplay
|
|
|| mContain != aNewData.mContain
|
|
|| (mFloat == StyleFloat::None) != (aNewData.mFloat == StyleFloat::None)
|
|
|| mOverflowX != aNewData.mOverflowX
|
|
|| mOverflowY != aNewData.mOverflowY
|
|
|| mScrollBehavior != aNewData.mScrollBehavior
|
|
|| mScrollSnapTypeX != aNewData.mScrollSnapTypeX
|
|
|| mScrollSnapTypeY != aNewData.mScrollSnapTypeY
|
|
|| mScrollSnapPointsX != aNewData.mScrollSnapPointsX
|
|
|| mScrollSnapPointsY != aNewData.mScrollSnapPointsY
|
|
|| mScrollSnapDestination != aNewData.mScrollSnapDestination
|
|
|| mTopLayer != aNewData.mTopLayer
|
|
|| mResize != aNewData.mResize) {
|
|
hint |= nsChangeHint_ReconstructFrame;
|
|
}
|
|
|
|
/* 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 ((mMozAppearance == NS_THEME_TEXTFIELD &&
|
|
aNewData.mMozAppearance != NS_THEME_TEXTFIELD) ||
|
|
(mMozAppearance != NS_THEME_TEXTFIELD &&
|
|
aNewData.mMozAppearance == NS_THEME_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 (mFloat != aNewData.mFloat) {
|
|
// Changing which side we float on doesn't affect descendants directly
|
|
hint |= nsChangeHint_AllReflowHints &
|
|
~(nsChangeHint_ClearDescendantIntrinsics |
|
|
nsChangeHint_NeedDirtyReflow);
|
|
}
|
|
|
|
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.
|
|
if (mBreakType != aNewData.mBreakType
|
|
|| mBreakInside != aNewData.mBreakInside
|
|
|| mBreakBefore != aNewData.mBreakBefore
|
|
|| mBreakAfter != aNewData.mBreakAfter
|
|
|| mMozAppearance != aNewData.mMozAppearance
|
|
|| mAppearance != aNewData.mAppearance
|
|
|| mOrient != aNewData.mOrient
|
|
|| mOverflowClipBox != aNewData.mOverflowClipBox) {
|
|
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()) {
|
|
// We do not need to apply nsChangeHint_UpdateTransformLayer since
|
|
// nsChangeHint_RepaintFrame will forcibly invalidate the frame area and
|
|
// ensure layers are rebuilt (or removed).
|
|
hint |= nsChangeHint_UpdateContainingBlock |
|
|
nsChangeHint_AddOrRemoveTransform |
|
|
nsChangeHint_UpdateOverflow |
|
|
nsChangeHint_RepaintFrame;
|
|
} 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);
|
|
|
|
if (!mSpecifiedTransform != !aNewData.mSpecifiedTransform ||
|
|
(mSpecifiedTransform &&
|
|
*mSpecifiedTransform != *aNewData.mSpecifiedTransform)) {
|
|
transformHint |= nsChangeHint_UpdateTransformLayer;
|
|
|
|
if (mSpecifiedTransform &&
|
|
aNewData.mSpecifiedTransform) {
|
|
transformHint |= nsChangeHint_UpdatePostTransformOverflow;
|
|
} else {
|
|
transformHint |= nsChangeHint_UpdateOverflow;
|
|
}
|
|
}
|
|
|
|
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 (HasPerspectiveStyle() != aNewData.HasPerspectiveStyle()) {
|
|
// A change from/to being a containing block for position:fixed.
|
|
hint |= nsChangeHint_UpdateContainingBlock;
|
|
}
|
|
|
|
if (mChildPerspective != aNewData.mChildPerspective ||
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|
|
// 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) {
|
|
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;
|
|
}
|
|
|
|
// 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 style context change anyway.
|
|
|
|
// Note: Likewise, for animation-*, the animation manager gets
|
|
// notified about every new style context 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 ||
|
|
!mShapeOutside.DefinitelyEquals(aNewData.mShapeOutside))) {
|
|
hint |= nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
return hint;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleVisibility
|
|
//
|
|
|
|
nsStyleVisibility::nsStyleVisibility(const nsPresContext* aContext)
|
|
: mDirection(aContext->GetBidi() == 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(NS_STYLE_COLOR_ADJUST_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 ((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 == eStyleContentType_Image) {
|
|
NS_ReleaseOnMainThread(dont_AddRef(mContent.mImage));
|
|
mContent.mImage = nullptr;
|
|
} else if (mType == eStyleContentType_Counter ||
|
|
mType == eStyleContentType_Counters) {
|
|
mContent.mCounters->Release();
|
|
} else if (mContent.mString) {
|
|
free(mContent.mString);
|
|
}
|
|
}
|
|
|
|
nsStyleContentData::nsStyleContentData(const nsStyleContentData& aOther)
|
|
: mType(aOther.mType)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleContentData);
|
|
if (mType == eStyleContentType_Image) {
|
|
mContent.mImage = aOther.mContent.mImage;
|
|
mContent.mImage->AddRef();
|
|
} else if (mType == eStyleContentType_Counter ||
|
|
mType == eStyleContentType_Counters) {
|
|
mContent.mCounters = aOther.mContent.mCounters;
|
|
mContent.mCounters->AddRef();
|
|
} else if (aOther.mContent.mString) {
|
|
mContent.mString = NS_strdup(aOther.mContent.mString);
|
|
} else {
|
|
mContent.mString = nullptr;
|
|
}
|
|
}
|
|
|
|
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 == eStyleContentType_Image) {
|
|
return DefinitelyEqualImages(mContent.mImage, aOther.mContent.mImage);
|
|
}
|
|
if (mType == eStyleContentType_Counter ||
|
|
mType == eStyleContentType_Counters) {
|
|
return *mContent.mCounters == *aOther.mContent.mCounters;
|
|
}
|
|
return safe_strcmp(mContent.mString, aOther.mContent.mString) == 0;
|
|
}
|
|
|
|
|
|
//-----------------------
|
|
// nsStyleContent
|
|
//
|
|
|
|
nsStyleContent::nsStyleContent(const nsPresContext* aContext)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleContent);
|
|
}
|
|
|
|
nsStyleContent::~nsStyleContent()
|
|
{
|
|
MOZ_COUNT_DTOR(nsStyleContent);
|
|
}
|
|
|
|
void
|
|
nsStyleContent::Destroy(nsPresContext* aContext)
|
|
{
|
|
this->~nsStyleContent();
|
|
aContext->PresShell()->FreeByObjectID(eArenaObjectID_nsStyleContent, this);
|
|
}
|
|
|
|
void
|
|
nsStyleContent::FinishStyle(nsPresContext* aPresContext)
|
|
{
|
|
for (nsStyleContentData& data : mContents) {
|
|
data.Resolve(aPresContext);
|
|
}
|
|
}
|
|
|
|
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
|
|
{
|
|
// In ElementRestyler::Restyle we assume that if there's no existing
|
|
// ::before or ::after and we don't have to restyle children of the
|
|
// node then we can't end up with a ::before or ::after due to the
|
|
// restyle of the node itself. That's not quite true, but the only
|
|
// exception to the above is when the 'content' property of the node
|
|
// changes and the pseudo-element inherits the changed value. Since
|
|
// the code here triggers a frame change on the node in that case,
|
|
// the optimization in ElementRestyler::Restyle is ok. But if we ever
|
|
// change this code to not reconstruct frames on changes to the
|
|
// 'content' property, then we will need to revisit the optimization
|
|
// in ElementRestyler::Restyle.
|
|
|
|
// 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 nsPresContext* aContext)
|
|
: 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)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleTextReset);
|
|
*this = aSource;
|
|
}
|
|
|
|
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 nsPresContext* aContext)
|
|
: mTextAlign(NS_STYLE_TEXT_ALIGN_START)
|
|
, mTextAlignLast(NS_STYLE_TEXT_ALIGN_AUTO)
|
|
, mTextAlignTrue(false)
|
|
, mTextAlignLastTrue(false)
|
|
, mTextJustify(StyleTextJustify::Auto)
|
|
, mTextTransform(NS_STYLE_TEXT_TRANSFORM_NONE)
|
|
, mWhiteSpace(NS_STYLE_WHITESPACE_NORMAL)
|
|
, mWordBreak(NS_STYLE_WORDBREAK_NORMAL)
|
|
, mOverflowWrap(NS_STYLE_OVERFLOWWRAP_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(nsCSSParser::ControlCharVisibilityDefault())
|
|
, mTextEmphasisStyle(NS_STYLE_TEXT_EMPHASIS_STYLE_NONE)
|
|
, mTextRendering(NS_STYLE_TEXT_RENDERING_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(0, nsStyleCoord::CoordConstructor)
|
|
, mWebkitTextStrokeWidth(0)
|
|
, mTextShadow(nullptr)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleText);
|
|
nsCOMPtr<nsIAtom> language = aContext->GetContentLanguage();
|
|
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)
|
|
, mTextAlignTrue(false)
|
|
, mTextAlignLastTrue(false)
|
|
, 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) ||
|
|
(mTextAlignTrue != aNewData.mTextAlignTrue) ||
|
|
(mTextAlignLastTrue != aNewData.mTextAlignLastTrue) ||
|
|
(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;
|
|
}
|
|
|
|
//-----------------------
|
|
// nsStyleUserInterface
|
|
//
|
|
|
|
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);
|
|
}
|
|
|
|
nsStyleUserInterface::nsStyleUserInterface(const nsPresContext* aContext)
|
|
: mUserInput(StyleUserInput::Auto)
|
|
, mUserModify(StyleUserModify::ReadOnly)
|
|
, mUserFocus(StyleUserFocus::None)
|
|
, mPointerEvents(NS_STYLE_POINTER_EVENTS_AUTO)
|
|
, mCursor(NS_STYLE_CURSOR_AUTO)
|
|
, mCaretColor(StyleComplexColor::Auto())
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleUserInterface);
|
|
}
|
|
|
|
nsStyleUserInterface::nsStyleUserInterface(const nsStyleUserInterface& aSource)
|
|
: mUserInput(aSource.mUserInput)
|
|
, mUserModify(aSource.mUserModify)
|
|
, mUserFocus(aSource.mUserFocus)
|
|
, mPointerEvents(aSource.mPointerEvents)
|
|
, mCursor(aSource.mCursor)
|
|
, mCursorImages(aSource.mCursorImages)
|
|
, mCaretColor(aSource.mCaretColor)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleUserInterface);
|
|
}
|
|
|
|
nsStyleUserInterface::~nsStyleUserInterface()
|
|
{
|
|
MOZ_COUNT_DTOR(nsStyleUserInterface);
|
|
}
|
|
|
|
void
|
|
nsStyleUserInterface::FinishStyle(nsPresContext* aPresContext)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(aPresContext->StyleSet()->IsServo());
|
|
|
|
for (nsCursorImage& cursor : mCursorImages) {
|
|
if (cursor.mImage && !cursor.mImage->IsResolved()) {
|
|
cursor.mImage->Resolve(aPresContext);
|
|
}
|
|
}
|
|
}
|
|
|
|
nsChangeHint
|
|
nsStyleUserInterface::CalcDifference(const nsStyleUserInterface& 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) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
return hint;
|
|
}
|
|
|
|
//-----------------------
|
|
// nsStyleUIReset
|
|
//
|
|
|
|
nsStyleUIReset::nsStyleUIReset(const nsPresContext* aContext)
|
|
: mUserSelect(StyleUserSelect::Auto)
|
|
, mForceBrokenImageIcon(0)
|
|
, mIMEMode(NS_STYLE_IME_MODE_AUTO)
|
|
, mWindowDragging(StyleWindowDragging::Default)
|
|
, mWindowShadow(NS_STYLE_WINDOW_SHADOW_DEFAULT)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleUIReset);
|
|
}
|
|
|
|
nsStyleUIReset::nsStyleUIReset(const nsStyleUIReset& aSource)
|
|
: mUserSelect(aSource.mUserSelect)
|
|
, mForceBrokenImageIcon(aSource.mForceBrokenImageIcon)
|
|
, mIMEMode(aSource.mIMEMode)
|
|
, mWindowDragging(aSource.mWindowDragging)
|
|
, mWindowShadow(aSource.mWindowShadow)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleUIReset);
|
|
}
|
|
|
|
nsStyleUIReset::~nsStyleUIReset()
|
|
{
|
|
MOZ_COUNT_DTOR(nsStyleUIReset);
|
|
}
|
|
|
|
nsChangeHint
|
|
nsStyleUIReset::CalcDifference(const nsStyleUIReset& aNewData) const
|
|
{
|
|
// ignore mIMEMode
|
|
if (mForceBrokenImageIcon != aNewData.mForceBrokenImageIcon) {
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
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.
|
|
return NS_STYLE_HINT_REFLOW;
|
|
}
|
|
if (mUserSelect != aNewData.mUserSelect) {
|
|
return NS_STYLE_HINT_VISUAL;
|
|
}
|
|
|
|
if (mWindowDragging != aNewData.mWindowDragging) {
|
|
return nsChangeHint_SchedulePaint;
|
|
}
|
|
|
|
if (mIMEMode != aNewData.mIMEMode) {
|
|
return nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
//-----------------------
|
|
// nsStyleVariables
|
|
//
|
|
|
|
nsStyleVariables::nsStyleVariables()
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleVariables);
|
|
}
|
|
|
|
nsStyleVariables::nsStyleVariables(const nsPresContext* aContext)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleVariables);
|
|
}
|
|
|
|
nsStyleVariables::nsStyleVariables(const nsStyleVariables& aSource)
|
|
: mVariables(aSource.mVariables)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleVariables);
|
|
}
|
|
|
|
nsStyleVariables::~nsStyleVariables()
|
|
{
|
|
MOZ_COUNT_DTOR(nsStyleVariables);
|
|
}
|
|
|
|
nsChangeHint
|
|
nsStyleVariables::CalcDifference(const nsStyleVariables& aNewData) const
|
|
{
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
//-----------------------
|
|
// nsStyleEffects
|
|
//
|
|
|
|
nsStyleEffects::nsStyleEffects(const nsPresContext* aContext)
|
|
: 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;
|
|
}
|