mirror of
https://github.com/mozilla/gecko-dev.git
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4001 lines
126 KiB
C++
4001 lines
126 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 "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/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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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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// These are the limits that we choose to clamp grid line numbers to.
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// http://dev.w3.org/csswg/css-grid/#overlarge-grids
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const int32_t nsStyleGridLine::kMinLine = -10000;
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const int32_t nsStyleGridLine::kMaxLine = 10000;
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static bool EqualURIs(nsIURI *aURI1, nsIURI *aURI2)
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{
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bool eq;
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return aURI1 == aURI2 || // handle null==null, and optimize
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(aURI1 && aURI2 &&
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NS_SUCCEEDED(aURI1->Equals(aURI2, &eq)) && // not equal on fail
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eq);
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}
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static bool EqualURIs(mozilla::css::URLValue *aURI1, mozilla::css::URLValue *aURI2)
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{
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return aURI1 == aURI2 || // handle null==null, and optimize
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(aURI1 && aURI2 && aURI1->URIEquals(*aURI2));
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}
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static bool EqualImages(imgIRequest *aImage1, imgIRequest* aImage2)
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{
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if (aImage1 == aImage2) {
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return true;
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}
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if (!aImage1 || !aImage2) {
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return false;
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}
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nsCOMPtr<nsIURI> uri1, uri2;
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aImage1->GetURI(getter_AddRefs(uri1));
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aImage2->GetURI(getter_AddRefs(uri2));
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return EqualURIs(uri1, uri2);
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}
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// A nullsafe wrapper for strcmp. We depend on null-safety.
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static int 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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int32_t
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StyleStructContext::AppUnitsPerDevPixel()
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{
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return DeviceContext()->AppUnitsPerDevPixel();
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}
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nsDeviceContext*
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StyleStructContext::HackilyFindSomeDeviceContext()
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{
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nsCOMPtr<nsIAppShellService> appShell(do_GetService("@mozilla.org/appshell/appShellService;1"));
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MOZ_ASSERT(appShell);
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nsCOMPtr<mozIDOMWindowProxy> win;
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appShell->GetHiddenDOMWindow(getter_AddRefs(win));
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return nsLayoutUtils::GetDeviceContextForScreenInfo(static_cast<nsPIDOMWindowOuter*>(win.get()));
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}
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static bool AreShadowArraysEqual(nsCSSShadowArray* lhs,
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nsCSSShadowArray* rhs);
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// --------------------
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// nsStyleFont
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//
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nsStyleFont::nsStyleFont(const nsFont& aFont, StyleStructContext 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(StyleStructContext aContext)
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: nsStyleFont(*aContext.GetDefaultFont(kPresContext_DefaultVariableFont_ID),
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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 nsStyleFont::CalcDifference(const nsStyleFont& aOther) const
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{
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MOZ_ASSERT(mAllowZoom == aOther.mAllowZoom,
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"expected mAllowZoom to be the same on both nsStyleFonts");
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if (mSize != aOther.mSize ||
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mFont != aOther.mFont ||
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mLanguage != aOther.mLanguage ||
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mExplicitLanguage != aOther.mExplicitLanguage ||
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mMathVariant != aOther.mMathVariant ||
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mMathDisplay != aOther.mMathDisplay ||
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mMinFontSizeRatio != aOther.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 != aOther.mGenericID ||
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mScriptLevel != aOther.mScriptLevel ||
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mScriptUnconstrainedSize != aOther.mScriptUnconstrainedSize ||
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mScriptMinSize != aOther.mScriptMinSize ||
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mScriptSizeMultiplier != aOther.mScriptSizeMultiplier) {
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return nsChangeHint_NeutralChange;
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}
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return NS_STYLE_HINT_NONE;
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}
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/* static */ nscoord
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nsStyleFont::ZoomText(StyleStructContext aContext, 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) * aContext.TextZoom());
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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->TextZoom());
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}
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/* static */ already_AddRefed<nsIAtom>
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nsStyleFont::GetLanguage(StyleStructContext aContext)
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{
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RefPtr<nsIAtom> language = aContext.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 = aContext.GetLanguageFromCharset();
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}
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return language.forget();
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}
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static nscoord CalcCoord(const nsStyleCoord& aCoord,
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const nscoord* aEnumTable,
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int32_t aNumEnums)
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{
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if (aCoord.GetUnit() == eStyleUnit_Enumerated) {
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MOZ_ASSERT(aEnumTable, "must have enum table");
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int32_t value = aCoord.GetIntValue();
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if (0 <= value && value < aNumEnums) {
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return aEnumTable[aCoord.GetIntValue()];
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}
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NS_NOTREACHED("unexpected enum value");
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return 0;
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}
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MOZ_ASSERT(aCoord.ConvertsToLength(), "unexpected unit");
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return nsRuleNode::ComputeCoordPercentCalc(aCoord, 0);
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}
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nsStyleMargin::nsStyleMargin(StyleStructContext 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 nsStyleMargin::CalcDifference(const nsStyleMargin& aOther) const
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{
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if (mMargin == aOther.mMargin) {
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return NS_STYLE_HINT_NONE;
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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(StyleStructContext 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 nsStylePadding::CalcDifference(const nsStylePadding& aOther) const
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{
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if (mPadding == aOther.mPadding) {
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return NS_STYLE_HINT_NONE;
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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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return NS_SubtractHint(NS_STYLE_HINT_REFLOW,
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nsChangeHint_ClearDescendantIntrinsics);
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}
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nsStyleBorder::nsStyleBorder(StyleStructContext 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(NS_STYLE_FLOAT_EDGE_CONTENT),
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mBoxDecorationBreak(NS_STYLE_BOX_DECORATION_BREAK_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 | BORDER_COLOR_FOREGROUND;
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mBorderColor[side] = NS_RGB(0, 0, 0);
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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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if (aDeep)
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NS_CSS_CLONE_LIST_MEMBER(nsBorderColors, this, mNext, result, (false));
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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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EnsureBorderColors();
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for (int32_t i = 0; i < 4; i++)
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if (aSrc.mBorderColors[i])
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mBorderColors[i] = aSrc.mBorderColors[i]->Clone();
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else
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mBorderColors[i] = nullptr;
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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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delete [] mBorderColors;
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}
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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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UntrackImage(aContext);
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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 nsStyleBorder::CalcDifference(const nsStyleBorder& aOther) const
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{
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// XXXbz we should be able to return a more specific change hint for
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// at least GetComputedBorder() differences...
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if (mTwipsPerPixel != aOther.mTwipsPerPixel ||
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GetComputedBorder() != aOther.GetComputedBorder() ||
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mFloatEdge != aOther.mFloatEdge ||
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mBorderImageOutset != aOther.mBorderImageOutset ||
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mBoxDecorationBreak != aOther.mBoxDecorationBreak)
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return NS_STYLE_HINT_REFLOW;
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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) != aOther.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.
|
|
NS_FOR_CSS_SIDES(ix) {
|
|
if (mBorderStyle[ix] != aOther.mBorderStyle[ix] ||
|
|
mBorderColor[ix] != aOther.mBorderColor[ix])
|
|
return nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (mBorderRadius != aOther.mBorderRadius ||
|
|
!mBorderColors != !aOther.mBorderColors)
|
|
return nsChangeHint_RepaintFrame;
|
|
|
|
if (IsBorderImageLoaded() || aOther.IsBorderImageLoaded()) {
|
|
if (mBorderImageSource != aOther.mBorderImageSource ||
|
|
mBorderImageRepeatH != aOther.mBorderImageRepeatH ||
|
|
mBorderImageRepeatV != aOther.mBorderImageRepeatV ||
|
|
mBorderImageSlice != aOther.mBorderImageSlice ||
|
|
mBorderImageFill != aOther.mBorderImageFill ||
|
|
mBorderImageWidth != aOther.mBorderImageWidth ||
|
|
mBorderImageOutset != aOther.mBorderImageOutset)
|
|
return nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
// Note that at this point if mBorderColors is non-null so is
|
|
// aOther.mBorderColors
|
|
if (mBorderColors) {
|
|
NS_FOR_CSS_SIDES(ix) {
|
|
if (!nsBorderColors::Equal(mBorderColors[ix],
|
|
aOther.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 != aOther.mBorder) {
|
|
return nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
return NS_STYLE_HINT_NONE;
|
|
}
|
|
|
|
nsStyleOutline::nsStyleOutline(StyleStructContext aContext)
|
|
: mOutlineWidth(NS_STYLE_BORDER_WIDTH_MEDIUM, eStyleUnit_Enumerated)
|
|
, mOutlineOffset(0)
|
|
, mActualOutlineWidth(0)
|
|
, mOutlineColor(NS_RGB(0, 0, 0))
|
|
, mOutlineStyle(NS_STYLE_BORDER_STYLE_NONE)
|
|
, 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);
|
|
}
|
|
|
|
SetOutlineInitialColor();
|
|
}
|
|
|
|
nsStyleOutline::nsStyleOutline(const nsStyleOutline& aSrc)
|
|
: mOutlineRadius(aSrc.mOutlineRadius)
|
|
, mOutlineWidth(aSrc.mOutlineWidth)
|
|
, mOutlineOffset(aSrc.mOutlineOffset)
|
|
, mActualOutlineWidth(aSrc.mActualOutlineWidth)
|
|
, mOutlineColor(aSrc.mOutlineColor)
|
|
, mOutlineStyle(aSrc.mOutlineStyle)
|
|
, mTwipsPerPixel(aSrc.mTwipsPerPixel)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleOutline);
|
|
}
|
|
|
|
void
|
|
nsStyleOutline::RecalcData()
|
|
{
|
|
if (NS_STYLE_BORDER_STYLE_NONE == GetOutlineStyle()) {
|
|
mActualOutlineWidth = 0;
|
|
} else {
|
|
MOZ_ASSERT(mOutlineWidth.ConvertsToLength() ||
|
|
mOutlineWidth.GetUnit() == eStyleUnit_Enumerated);
|
|
// Clamp negative calc() to 0.
|
|
mActualOutlineWidth =
|
|
std::max(CalcCoord(mOutlineWidth,
|
|
StaticPresData::Get()->GetBorderWidthTable(), 3), 0);
|
|
mActualOutlineWidth =
|
|
NS_ROUND_BORDER_TO_PIXELS(mActualOutlineWidth, mTwipsPerPixel);
|
|
}
|
|
}
|
|
|
|
nsChangeHint nsStyleOutline::CalcDifference(const nsStyleOutline& aOther) const
|
|
{
|
|
if (mActualOutlineWidth != aOther.mActualOutlineWidth ||
|
|
(mActualOutlineWidth > 0 &&
|
|
mOutlineOffset != aOther.mOutlineOffset)) {
|
|
return NS_CombineHint(nsChangeHint_UpdateOverflow,
|
|
nsChangeHint_SchedulePaint);
|
|
}
|
|
|
|
if (mOutlineStyle != aOther.mOutlineStyle ||
|
|
mOutlineColor != aOther.mOutlineColor ||
|
|
mOutlineRadius != aOther.mOutlineRadius) {
|
|
if (mActualOutlineWidth > 0) {
|
|
return nsChangeHint_RepaintFrame;
|
|
}
|
|
return nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
if (mOutlineWidth != aOther.mOutlineWidth ||
|
|
mOutlineOffset != aOther.mOutlineOffset ||
|
|
mTwipsPerPixel != aOther.mTwipsPerPixel) {
|
|
return nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
return NS_STYLE_HINT_NONE;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleList
|
|
//
|
|
nsStyleList::nsStyleList(StyleStructContext aContext)
|
|
: mListStylePosition(NS_STYLE_LIST_STYLE_POSITION_OUTSIDE),
|
|
mCounterStyle(aContext.BuildCounterStyle(NS_LITERAL_STRING("disc")))
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleList);
|
|
SetQuotesInitial();
|
|
}
|
|
|
|
nsStyleList::~nsStyleList()
|
|
{
|
|
MOZ_COUNT_DTOR(nsStyleList);
|
|
}
|
|
|
|
nsStyleList::nsStyleList(const nsStyleList& aSource)
|
|
: mListStylePosition(aSource.mListStylePosition),
|
|
mCounterStyle(aSource.mCounterStyle),
|
|
mQuotes(aSource.mQuotes),
|
|
mImageRegion(aSource.mImageRegion)
|
|
{
|
|
SetListStyleImage(aSource.GetListStyleImage());
|
|
MOZ_COUNT_CTOR(nsStyleList);
|
|
}
|
|
|
|
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& aOther) 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 != aOther.mQuotes &&
|
|
(mQuotes || aOther.mQuotes) &&
|
|
GetQuotePairs() != aOther.GetQuotePairs()) {
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
}
|
|
if (mListStylePosition != aOther.mListStylePosition)
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
if (EqualImages(mListStyleImage, aOther.mListStyleImage) &&
|
|
mCounterStyle == aOther.mCounterStyle) {
|
|
if (mImageRegion.IsEqualInterior(aOther.mImageRegion)) {
|
|
return NS_STYLE_HINT_NONE;
|
|
}
|
|
if (mImageRegion.width == aOther.mImageRegion.width &&
|
|
mImageRegion.height == aOther.mImageRegion.height)
|
|
return NS_STYLE_HINT_VISUAL;
|
|
}
|
|
return NS_STYLE_HINT_REFLOW;
|
|
}
|
|
|
|
StaticRefPtr<nsStyleQuoteValues>
|
|
nsStyleList::sInitialQuotes;
|
|
|
|
StaticRefPtr<nsStyleQuoteValues>
|
|
nsStyleList::sNoneQuotes;
|
|
|
|
|
|
// --------------------
|
|
// nsStyleXUL
|
|
//
|
|
nsStyleXUL::nsStyleXUL(StyleStructContext aContext)
|
|
: mBoxFlex(0.0f)
|
|
, mBoxOrdinal(1)
|
|
, mBoxAlign(NS_STYLE_BOX_ALIGN_STRETCH)
|
|
, mBoxDirection(NS_STYLE_BOX_DIRECTION_NORMAL)
|
|
, mBoxOrient(NS_STYLE_BOX_ORIENT_HORIZONTAL)
|
|
, mBoxPack(NS_STYLE_BOX_PACK_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& aOther) const
|
|
{
|
|
if (mBoxAlign == aOther.mBoxAlign &&
|
|
mBoxDirection == aOther.mBoxDirection &&
|
|
mBoxFlex == aOther.mBoxFlex &&
|
|
mBoxOrient == aOther.mBoxOrient &&
|
|
mBoxPack == aOther.mBoxPack &&
|
|
mBoxOrdinal == aOther.mBoxOrdinal &&
|
|
mStretchStack == aOther.mStretchStack)
|
|
return NS_STYLE_HINT_NONE;
|
|
if (mBoxOrdinal != aOther.mBoxOrdinal)
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
return NS_STYLE_HINT_REFLOW;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleColumn
|
|
//
|
|
/* static */ const uint32_t nsStyleColumn::kMaxColumnCount = 1000;
|
|
|
|
nsStyleColumn::nsStyleColumn(StyleStructContext aContext)
|
|
: mColumnCount(NS_STYLE_COLUMN_COUNT_AUTO)
|
|
, mColumnWidth(eStyleUnit_Auto)
|
|
, mColumnGap(eStyleUnit_Normal)
|
|
, mColumnRuleColor(NS_RGB(0, 0, 0))
|
|
, mColumnRuleStyle(NS_STYLE_BORDER_STYLE_NONE)
|
|
, mColumnFill(NS_STYLE_COLUMN_FILL_BALANCE)
|
|
, mColumnRuleColorIsForeground(true)
|
|
, 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)
|
|
, mColumnRuleColorIsForeground(aSource.mColumnRuleColorIsForeground)
|
|
, mColumnRuleWidth(aSource.mColumnRuleWidth)
|
|
, mTwipsPerPixel(aSource.mTwipsPerPixel)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleColumn);
|
|
}
|
|
|
|
nsChangeHint nsStyleColumn::CalcDifference(const nsStyleColumn& aOther) const
|
|
{
|
|
if ((mColumnWidth.GetUnit() == eStyleUnit_Auto)
|
|
!= (aOther.mColumnWidth.GetUnit() == eStyleUnit_Auto) ||
|
|
mColumnCount != aOther.mColumnCount)
|
|
// 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 NS_STYLE_HINT_FRAMECHANGE;
|
|
|
|
if (mColumnWidth != aOther.mColumnWidth ||
|
|
mColumnGap != aOther.mColumnGap ||
|
|
mColumnFill != aOther.mColumnFill)
|
|
return NS_STYLE_HINT_REFLOW;
|
|
|
|
if (GetComputedColumnRuleWidth() != aOther.GetComputedColumnRuleWidth() ||
|
|
mColumnRuleStyle != aOther.mColumnRuleStyle ||
|
|
mColumnRuleColor != aOther.mColumnRuleColor ||
|
|
mColumnRuleColorIsForeground != aOther.mColumnRuleColorIsForeground)
|
|
return NS_STYLE_HINT_VISUAL;
|
|
|
|
// XXX Is it right that we never check mTwipsPerPixel to return a
|
|
// non-nsChangeHint_NeutralChange hint?
|
|
if (mColumnRuleWidth != aOther.mColumnRuleWidth ||
|
|
mTwipsPerPixel != aOther.mTwipsPerPixel) {
|
|
return nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
return NS_STYLE_HINT_NONE;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleSVG
|
|
//
|
|
nsStyleSVG::nsStyleSVG(StyleStructContext aContext)
|
|
: mFill(eStyleSVGPaintType_Color) // Will be initialized to NS_RGB(0, 0, 0)
|
|
, mStroke(eStyleSVGPaintType_None)
|
|
, mStrokeDasharray(nullptr)
|
|
, mStrokeDashoffset(0, nsStyleCoord::CoordConstructor)
|
|
, mStrokeWidth(nsPresContext::CSSPixelsToAppUnits(1),
|
|
nsStyleCoord::CoordConstructor)
|
|
, mFillOpacity(1.0f)
|
|
, mStrokeMiterlimit(4.0f)
|
|
, mStrokeOpacity(1.0f)
|
|
, mStrokeDasharrayLength(0)
|
|
, mClipRule(NS_STYLE_FILL_RULE_NONZERO)
|
|
, mColorInterpolation(NS_STYLE_COLOR_INTERPOLATION_SRGB)
|
|
, mColorInterpolationFilters(NS_STYLE_COLOR_INTERPOLATION_LINEARRGB)
|
|
, mFillRule(NS_STYLE_FILL_RULE_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)
|
|
, mFillOpacitySource(eStyleSVGOpacitySource_Normal)
|
|
, mStrokeOpacitySource(eStyleSVGOpacitySource_Normal)
|
|
, mStrokeDasharrayFromObject(false)
|
|
, mStrokeDashoffsetFromObject(false)
|
|
, mStrokeWidthFromObject(false)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleSVG);
|
|
}
|
|
|
|
nsStyleSVG::~nsStyleSVG()
|
|
{
|
|
MOZ_COUNT_DTOR(nsStyleSVG);
|
|
delete [] mStrokeDasharray;
|
|
}
|
|
|
|
nsStyleSVG::nsStyleSVG(const nsStyleSVG& aSource)
|
|
: mFill(aSource.mFill)
|
|
, mStroke(aSource.mStroke)
|
|
, mMarkerEnd(aSource.mMarkerEnd)
|
|
, mMarkerMid(aSource.mMarkerMid)
|
|
, mMarkerStart(aSource.mMarkerStart)
|
|
, mStrokeDasharray(nullptr)
|
|
, mStrokeDashoffset(aSource.mStrokeDashoffset)
|
|
, mStrokeWidth(aSource.mStrokeWidth)
|
|
, mFillOpacity(aSource.mFillOpacity)
|
|
, mStrokeMiterlimit(aSource.mStrokeMiterlimit)
|
|
, mStrokeOpacity(aSource.mStrokeOpacity)
|
|
, mStrokeDasharrayLength(0)
|
|
, 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)
|
|
, mFillOpacitySource(aSource.mFillOpacitySource)
|
|
, mStrokeOpacitySource(aSource.mStrokeOpacitySource)
|
|
, mStrokeDasharrayFromObject(aSource.mStrokeDasharrayFromObject)
|
|
, mStrokeDashoffsetFromObject(aSource.mStrokeDashoffsetFromObject)
|
|
, mStrokeWidthFromObject(aSource.mStrokeWidthFromObject)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleSVG);
|
|
|
|
MOZ_ASSERT(bool(aSource.mStrokeDasharray) ==
|
|
bool(aSource.mStrokeDasharrayLength),
|
|
"aSource.mStrokeDasharray has an inconsistent length!");
|
|
if (aSource.mStrokeDasharray) {
|
|
mStrokeDasharrayLength = aSource.mStrokeDasharrayLength;
|
|
mStrokeDasharray = new nsStyleCoord[mStrokeDasharrayLength];
|
|
if (mStrokeDasharray) {
|
|
for (size_t i = 0; i < mStrokeDasharrayLength; i++) {
|
|
mStrokeDasharray[i] = aSource.mStrokeDasharray[i];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static bool PaintURIChanged(const nsStyleSVGPaint& aPaint1,
|
|
const nsStyleSVGPaint& aPaint2)
|
|
{
|
|
if (aPaint1.mType != aPaint2.mType) {
|
|
return aPaint1.mType == eStyleSVGPaintType_Server ||
|
|
aPaint2.mType == eStyleSVGPaintType_Server;
|
|
}
|
|
return aPaint1.mType == eStyleSVGPaintType_Server &&
|
|
!EqualURIs(aPaint1.mPaint.mPaintServer, aPaint2.mPaint.mPaintServer);
|
|
}
|
|
|
|
nsChangeHint nsStyleSVG::CalcDifference(const nsStyleSVG& aOther) const
|
|
{
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
if (!EqualURIs(mMarkerEnd, aOther.mMarkerEnd) ||
|
|
!EqualURIs(mMarkerMid, aOther.mMarkerMid) ||
|
|
!EqualURIs(mMarkerStart, aOther.mMarkerStart)) {
|
|
// Markers currently contribute to nsSVGPathGeometryFrame::mRect,
|
|
// so we need a reflow as well as a repaint. No intrinsic sizes need
|
|
// to change, so nsChangeHint_NeedReflow is sufficient.
|
|
NS_UpdateHint(hint, nsChangeHint_UpdateEffects);
|
|
NS_UpdateHint(hint, nsChangeHint_NeedReflow);
|
|
NS_UpdateHint(hint, nsChangeHint_NeedDirtyReflow); // XXX remove me: bug 876085
|
|
NS_UpdateHint(hint, nsChangeHint_RepaintFrame);
|
|
return hint;
|
|
}
|
|
|
|
if (mFill != aOther.mFill ||
|
|
mStroke != aOther.mStroke ||
|
|
mFillOpacity != aOther.mFillOpacity ||
|
|
mStrokeOpacity != aOther.mStrokeOpacity) {
|
|
NS_UpdateHint(hint, nsChangeHint_RepaintFrame);
|
|
if (HasStroke() != aOther.HasStroke() ||
|
|
(!HasStroke() && HasFill() != aOther.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 nsSVGPathGeometryFrames.
|
|
NS_UpdateHint(hint, nsChangeHint_NeedReflow);
|
|
NS_UpdateHint(hint, nsChangeHint_NeedDirtyReflow); // XXX remove me: bug 876085
|
|
}
|
|
if (PaintURIChanged(mFill, aOther.mFill) ||
|
|
PaintURIChanged(mStroke, aOther.mStroke)) {
|
|
NS_UpdateHint(hint, nsChangeHint_UpdateEffects);
|
|
}
|
|
}
|
|
|
|
// Stroke currently contributes to nsSVGPathGeometryFrame::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 nsSVGPathGeometryFrame::mRect.
|
|
// text-anchor changes also require a reflow since it changes frames' rects.
|
|
if (mStrokeWidth != aOther.mStrokeWidth ||
|
|
mStrokeMiterlimit != aOther.mStrokeMiterlimit ||
|
|
mStrokeLinecap != aOther.mStrokeLinecap ||
|
|
mStrokeLinejoin != aOther.mStrokeLinejoin ||
|
|
mTextAnchor != aOther.mTextAnchor) {
|
|
NS_UpdateHint(hint, nsChangeHint_NeedReflow);
|
|
NS_UpdateHint(hint, nsChangeHint_NeedDirtyReflow); // XXX remove me: bug 876085
|
|
NS_UpdateHint(hint, nsChangeHint_RepaintFrame);
|
|
return hint;
|
|
}
|
|
|
|
if (hint & nsChangeHint_RepaintFrame) {
|
|
return hint; // we don't add anything else below
|
|
}
|
|
|
|
if ( mStrokeDashoffset != aOther.mStrokeDashoffset ||
|
|
mClipRule != aOther.mClipRule ||
|
|
mColorInterpolation != aOther.mColorInterpolation ||
|
|
mColorInterpolationFilters != aOther.mColorInterpolationFilters ||
|
|
mFillRule != aOther.mFillRule ||
|
|
mPaintOrder != aOther.mPaintOrder ||
|
|
mShapeRendering != aOther.mShapeRendering ||
|
|
mStrokeDasharrayLength != aOther.mStrokeDasharrayLength ||
|
|
mFillOpacitySource != aOther.mFillOpacitySource ||
|
|
mStrokeOpacitySource != aOther.mStrokeOpacitySource ||
|
|
mStrokeDasharrayFromObject != aOther.mStrokeDasharrayFromObject ||
|
|
mStrokeDashoffsetFromObject != aOther.mStrokeDashoffsetFromObject ||
|
|
mStrokeWidthFromObject != aOther.mStrokeWidthFromObject) {
|
|
NS_UpdateHint(hint, nsChangeHint_RepaintFrame);
|
|
return hint;
|
|
}
|
|
|
|
// length of stroke dasharrays are the same (tested above) - check entries
|
|
for (uint32_t i=0; i<mStrokeDasharrayLength; i++)
|
|
if (mStrokeDasharray[i] != aOther.mStrokeDasharray[i]) {
|
|
NS_UpdateHint(hint, nsChangeHint_RepaintFrame);
|
|
return hint;
|
|
}
|
|
|
|
return hint;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleBasicShape
|
|
|
|
nsCSSKeyword
|
|
nsStyleBasicShape::GetShapeTypeName() const
|
|
{
|
|
switch (mType) {
|
|
case nsStyleBasicShape::Type::ePolygon:
|
|
return eCSSKeyword_polygon;
|
|
case nsStyleBasicShape::Type::eCircle:
|
|
return eCSSKeyword_circle;
|
|
case nsStyleBasicShape::Type::eEllipse:
|
|
return eCSSKeyword_ellipse;
|
|
case nsStyleBasicShape::Type::eInset:
|
|
return eCSSKeyword_inset;
|
|
}
|
|
NS_NOTREACHED("unexpected type");
|
|
return eCSSKeyword_UNKNOWN;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleClipPath
|
|
//
|
|
nsStyleClipPath::nsStyleClipPath()
|
|
: mType(NS_STYLE_CLIP_PATH_NONE)
|
|
, mURL(nullptr)
|
|
, mSizingBox(NS_STYLE_CLIP_SHAPE_SIZING_NOBOX)
|
|
{
|
|
}
|
|
|
|
nsStyleClipPath::nsStyleClipPath(const nsStyleClipPath& aSource)
|
|
: mType(NS_STYLE_CLIP_PATH_NONE)
|
|
, mURL(nullptr)
|
|
, mSizingBox(NS_STYLE_CLIP_SHAPE_SIZING_NOBOX)
|
|
{
|
|
if (aSource.mType == NS_STYLE_CLIP_PATH_URL) {
|
|
SetURL(aSource.mURL);
|
|
} else if (aSource.mType == NS_STYLE_CLIP_PATH_SHAPE) {
|
|
SetBasicShape(aSource.mBasicShape, aSource.mSizingBox);
|
|
} else if (aSource.mType == NS_STYLE_CLIP_PATH_BOX) {
|
|
SetSizingBox(aSource.mSizingBox);
|
|
}
|
|
}
|
|
|
|
nsStyleClipPath::~nsStyleClipPath()
|
|
{
|
|
ReleaseRef();
|
|
}
|
|
|
|
nsStyleClipPath&
|
|
nsStyleClipPath::operator=(const nsStyleClipPath& aOther)
|
|
{
|
|
if (this == &aOther) {
|
|
return *this;
|
|
}
|
|
|
|
if (aOther.mType == NS_STYLE_CLIP_PATH_URL) {
|
|
SetURL(aOther.mURL);
|
|
} else if (aOther.mType == NS_STYLE_CLIP_PATH_SHAPE) {
|
|
SetBasicShape(aOther.mBasicShape, aOther.mSizingBox);
|
|
} else if (aOther.mType == NS_STYLE_CLIP_PATH_BOX) {
|
|
SetSizingBox(aOther.mSizingBox);
|
|
} else {
|
|
ReleaseRef();
|
|
mSizingBox = NS_STYLE_CLIP_SHAPE_SIZING_NOBOX;
|
|
mType = NS_STYLE_CLIP_PATH_NONE;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
|
|
bool
|
|
nsStyleClipPath::operator==(const nsStyleClipPath& aOther) const
|
|
{
|
|
if (mType != aOther.mType) {
|
|
return false;
|
|
}
|
|
|
|
if (mType == NS_STYLE_CLIP_PATH_URL) {
|
|
return EqualURIs(mURL, aOther.mURL);
|
|
} else if (mType == NS_STYLE_CLIP_PATH_SHAPE) {
|
|
return *mBasicShape == *aOther.mBasicShape &&
|
|
mSizingBox == aOther.mSizingBox;
|
|
} else if (mType == NS_STYLE_CLIP_PATH_BOX) {
|
|
return mSizingBox == aOther.mSizingBox;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
nsStyleClipPath::ReleaseRef()
|
|
{
|
|
if (mType == NS_STYLE_CLIP_PATH_SHAPE) {
|
|
NS_ASSERTION(mBasicShape, "expected pointer");
|
|
mBasicShape->Release();
|
|
} else if (mType == NS_STYLE_CLIP_PATH_URL) {
|
|
NS_ASSERTION(mURL, "expected pointer");
|
|
mURL->Release();
|
|
}
|
|
// mBasicShap, mURL, etc. are all pointers in a union of pointers. Nulling
|
|
// one of them nulls all of them:
|
|
mURL = nullptr;
|
|
}
|
|
|
|
void
|
|
nsStyleClipPath::SetURL(nsIURI* aURL)
|
|
{
|
|
NS_ASSERTION(aURL, "expected pointer");
|
|
ReleaseRef();
|
|
mURL = aURL;
|
|
mURL->AddRef();
|
|
mType = NS_STYLE_CLIP_PATH_URL;
|
|
}
|
|
|
|
void
|
|
nsStyleClipPath::SetBasicShape(nsStyleBasicShape* aBasicShape, uint8_t aSizingBox)
|
|
{
|
|
NS_ASSERTION(aBasicShape, "expected pointer");
|
|
ReleaseRef();
|
|
mBasicShape = aBasicShape;
|
|
mBasicShape->AddRef();
|
|
mSizingBox = aSizingBox;
|
|
mType = NS_STYLE_CLIP_PATH_SHAPE;
|
|
}
|
|
|
|
void
|
|
nsStyleClipPath::SetSizingBox(uint8_t aSizingBox)
|
|
{
|
|
ReleaseRef();
|
|
mSizingBox = aSizingBox;
|
|
mType = NS_STYLE_CLIP_PATH_BOX;
|
|
}
|
|
|
|
// --------------------
|
|
// 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 EqualURIs(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;
|
|
}
|
|
|
|
void
|
|
nsStyleFilter::SetURL(nsIURI* aURL)
|
|
{
|
|
NS_ASSERTION(aURL, "expected pointer");
|
|
ReleaseRef();
|
|
mURL = aURL;
|
|
mURL->AddRef();
|
|
mType = NS_STYLE_FILTER_URL;
|
|
}
|
|
|
|
void
|
|
nsStyleFilter::SetDropShadow(nsCSSShadowArray* aDropShadow)
|
|
{
|
|
NS_ASSERTION(aDropShadow, "expected pointer");
|
|
ReleaseRef();
|
|
mDropShadow = aDropShadow;
|
|
mDropShadow->AddRef();
|
|
mType = NS_STYLE_FILTER_DROP_SHADOW;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleSVGReset
|
|
//
|
|
nsStyleSVGReset::nsStyleSVGReset(StyleStructContext aContext)
|
|
: 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) {
|
|
mMask.UntrackImages(aContext);
|
|
|
|
this->~nsStyleSVGReset();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleSVGReset, this);
|
|
}
|
|
|
|
nsChangeHint nsStyleSVGReset::CalcDifference(const nsStyleSVGReset& aOther) const
|
|
{
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
if (mClipPath != aOther.mClipPath) {
|
|
NS_UpdateHint(hint, nsChangeHint_UpdateEffects);
|
|
NS_UpdateHint(hint, nsChangeHint_RepaintFrame);
|
|
// clip-path changes require that we update the PreEffectsBBoxProperty,
|
|
// which is done during overflow computation.
|
|
NS_UpdateHint(hint, nsChangeHint_UpdateOverflow);
|
|
}
|
|
|
|
if (mDominantBaseline != aOther.mDominantBaseline) {
|
|
// XXXjwatt: why NS_STYLE_HINT_REFLOW? Isn't that excessive?
|
|
NS_UpdateHint(hint, NS_STYLE_HINT_REFLOW);
|
|
} else if (mVectorEffect != aOther.mVectorEffect) {
|
|
// Stroke currently affects nsSVGPathGeometryFrame::mRect, and
|
|
// vector-effect affect stroke. As a result we need to reflow if
|
|
// vector-effect changes in order to have nsSVGPathGeometryFrame::
|
|
// ReflowSVG called to update its mRect. No intrinsic sizes need
|
|
// to change so nsChangeHint_NeedReflow is sufficient.
|
|
NS_UpdateHint(hint, nsChangeHint_NeedReflow);
|
|
NS_UpdateHint(hint, nsChangeHint_NeedDirtyReflow); // XXX remove me: bug 876085
|
|
NS_UpdateHint(hint, nsChangeHint_RepaintFrame);
|
|
} else if (mStopColor != aOther.mStopColor ||
|
|
mFloodColor != aOther.mFloodColor ||
|
|
mLightingColor != aOther.mLightingColor ||
|
|
mStopOpacity != aOther.mStopOpacity ||
|
|
mFloodOpacity != aOther.mFloodOpacity ||
|
|
mMaskType != aOther.mMaskType) {
|
|
NS_UpdateHint(hint, nsChangeHint_RepaintFrame);
|
|
}
|
|
|
|
hint |= mMask.CalcDifference(aOther.mMask);
|
|
|
|
return hint;
|
|
}
|
|
|
|
// nsStyleSVGPaint implementation
|
|
nsStyleSVGPaint::nsStyleSVGPaint(nsStyleSVGPaintType aType)
|
|
: mType(nsStyleSVGPaintType(0))
|
|
, mFallbackColor(NS_RGB(0, 0, 0))
|
|
{
|
|
SetType(aType);
|
|
}
|
|
|
|
nsStyleSVGPaint::nsStyleSVGPaint(const nsStyleSVGPaint& aSource)
|
|
: mType(nsStyleSVGPaintType(0))
|
|
, mFallbackColor(NS_RGB(0, 0, 0))
|
|
{
|
|
SetType(aSource.mType);
|
|
|
|
mFallbackColor = aSource.mFallbackColor;
|
|
if (mType == eStyleSVGPaintType_Server) {
|
|
mPaint.mPaintServer = aSource.mPaint.mPaintServer;
|
|
NS_IF_ADDREF(mPaint.mPaintServer);
|
|
} else {
|
|
mPaint.mColor = aSource.mPaint.mColor;
|
|
}
|
|
}
|
|
|
|
nsStyleSVGPaint::~nsStyleSVGPaint()
|
|
{
|
|
Reset();
|
|
}
|
|
|
|
void
|
|
nsStyleSVGPaint::Reset()
|
|
{
|
|
SetType(nsStyleSVGPaintType(0));
|
|
}
|
|
|
|
void
|
|
nsStyleSVGPaint::SetType(nsStyleSVGPaintType aType)
|
|
{
|
|
if (mType == eStyleSVGPaintType_Server) {
|
|
NS_IF_RELEASE(mPaint.mPaintServer);
|
|
mPaint.mPaintServer = nullptr;
|
|
} else {
|
|
mPaint.mColor = NS_RGB(0, 0, 0);
|
|
}
|
|
mType = aType;
|
|
}
|
|
|
|
nsStyleSVGPaint& nsStyleSVGPaint::operator=(const nsStyleSVGPaint& aOther)
|
|
{
|
|
if (this == &aOther)
|
|
return *this;
|
|
|
|
SetType(aOther.mType);
|
|
|
|
mFallbackColor = aOther.mFallbackColor;
|
|
if (mType == eStyleSVGPaintType_Server) {
|
|
mPaint.mPaintServer = aOther.mPaint.mPaintServer;
|
|
NS_IF_ADDREF(mPaint.mPaintServer);
|
|
} else {
|
|
mPaint.mColor = aOther.mPaint.mColor;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
bool nsStyleSVGPaint::operator==(const nsStyleSVGPaint& aOther) const
|
|
{
|
|
if (mType != aOther.mType)
|
|
return false;
|
|
if (mType == eStyleSVGPaintType_Server)
|
|
return EqualURIs(mPaint.mPaintServer, aOther.mPaint.mPaintServer) &&
|
|
mFallbackColor == aOther.mFallbackColor;
|
|
if (mType == eStyleSVGPaintType_Color)
|
|
return mPaint.mColor == aOther.mPaint.mColor;
|
|
return true;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStylePosition
|
|
//
|
|
nsStylePosition::nsStylePosition(StyleStructContext 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)
|
|
{
|
|
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& aOther,
|
|
const nsStyleVisibility* aOldStyleVisibility) const
|
|
{
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
// Changes to "z-index" require a repaint.
|
|
if (mZIndex != aOther.mZIndex) {
|
|
NS_UpdateHint(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 != aOther.mObjectFit ||
|
|
mObjectPosition != aOther.mObjectPosition) {
|
|
NS_UpdateHint(hint, NS_CombineHint(nsChangeHint_RepaintFrame,
|
|
nsChangeHint_NeedReflow));
|
|
}
|
|
|
|
if (mOrder != aOther.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 NS_CombineHint(hint, NS_CombineHint(nsChangeHint_RepaintFrame,
|
|
nsChangeHint_AllReflowHints));
|
|
}
|
|
|
|
if (mBoxSizing != aOther.mBoxSizing) {
|
|
// Can affect both widths and heights; just a bad scene.
|
|
return NS_CombineHint(hint, nsChangeHint_AllReflowHints);
|
|
}
|
|
|
|
// Properties that apply to flex items:
|
|
// XXXdholbert These should probably be more targeted (bug 819536)
|
|
if (mAlignSelf != aOther.mAlignSelf ||
|
|
mFlexBasis != aOther.mFlexBasis ||
|
|
mFlexGrow != aOther.mFlexGrow ||
|
|
mFlexShrink != aOther.mFlexShrink) {
|
|
return NS_CombineHint(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 != aOther.mAlignItems ||
|
|
mFlexDirection != aOther.mFlexDirection ||
|
|
mFlexWrap != aOther.mFlexWrap) {
|
|
return NS_CombineHint(hint, nsChangeHint_AllReflowHints);
|
|
}
|
|
|
|
// Properties that apply to grid containers:
|
|
// FIXME: only for grid containers
|
|
// (ie. 'display: grid' or 'display: inline-grid')
|
|
if (mGridTemplateColumns != aOther.mGridTemplateColumns ||
|
|
mGridTemplateRows != aOther.mGridTemplateRows ||
|
|
mGridTemplateAreas != aOther.mGridTemplateAreas ||
|
|
mGridAutoColumnsMin != aOther.mGridAutoColumnsMin ||
|
|
mGridAutoColumnsMax != aOther.mGridAutoColumnsMax ||
|
|
mGridAutoRowsMin != aOther.mGridAutoRowsMin ||
|
|
mGridAutoRowsMax != aOther.mGridAutoRowsMax ||
|
|
mGridAutoFlow != aOther.mGridAutoFlow) {
|
|
return NS_CombineHint(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 != aOther.mGridColumnStart ||
|
|
mGridColumnEnd != aOther.mGridColumnEnd ||
|
|
mGridRowStart != aOther.mGridRowStart ||
|
|
mGridRowEnd != aOther.mGridRowEnd ||
|
|
mGridColumnGap != aOther.mGridColumnGap ||
|
|
mGridRowGap != aOther.mGridRowGap) {
|
|
return NS_CombineHint(hint, nsChangeHint_AllReflowHints);
|
|
}
|
|
|
|
// Changing 'justify-content/items/self' might affect the positioning,
|
|
// but it won't affect any sizing.
|
|
if (mJustifyContent != aOther.mJustifyContent ||
|
|
mJustifyItems != aOther.mJustifyItems ||
|
|
mJustifySelf != aOther.mJustifySelf) {
|
|
NS_UpdateHint(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 != aOther.mAlignContent) {
|
|
NS_UpdateHint(hint, nsChangeHint_NeedReflow);
|
|
}
|
|
|
|
bool widthChanged = mWidth != aOther.mWidth ||
|
|
mMinWidth != aOther.mMinWidth ||
|
|
mMaxWidth != aOther.mMaxWidth;
|
|
bool heightChanged = mHeight != aOther.mHeight ||
|
|
mMinHeight != aOther.mMinHeight ||
|
|
mMaxHeight != aOther.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.
|
|
NS_UpdateHint(hint, nsChangeHint_NeedReflow |
|
|
nsChangeHint_UpdateComputedBSize |
|
|
nsChangeHint_ReflowChangesSizeOrPosition);
|
|
}
|
|
|
|
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.
|
|
NS_UpdateHint(hint, NS_SubtractHint(nsChangeHint_AllReflowHints,
|
|
NS_CombineHint(nsChangeHint_ClearDescendantIntrinsics,
|
|
nsChangeHint_NeedDirtyReflow)));
|
|
}
|
|
} else {
|
|
if (widthChanged || heightChanged) {
|
|
NS_UpdateHint(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 != aOther.mOffset) {
|
|
if (IsAutonessEqual(mOffset, aOther.mOffset)) {
|
|
NS_UpdateHint(hint, nsChangeHint(nsChangeHint_RecomputePosition |
|
|
nsChangeHint_UpdateParentOverflow));
|
|
} else {
|
|
NS_UpdateHint(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::ComputedAlignSelf(nsStyleContext* aParent) const
|
|
{
|
|
if (mAlignSelf != NS_STYLE_ALIGN_AUTO) {
|
|
return mAlignSelf;
|
|
}
|
|
if (MOZ_LIKELY(aParent)) {
|
|
auto parentAlignItems = aParent->StylePosition()->ComputedAlignItems();
|
|
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->GetParent());
|
|
// "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::ComputedJustifySelf(nsStyleContext* aParent) const
|
|
{
|
|
if (mJustifySelf != NS_STYLE_JUSTIFY_AUTO) {
|
|
return mJustifySelf;
|
|
}
|
|
if (MOZ_LIKELY(aParent)) {
|
|
auto inheritedJustifyItems = aParent->StylePosition()->
|
|
ComputedJustifyItems(aParent->GetParent());
|
|
return inheritedJustifyItems & ~NS_STYLE_JUSTIFY_LEGACY;
|
|
}
|
|
return NS_STYLE_JUSTIFY_NORMAL;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleTable
|
|
//
|
|
|
|
nsStyleTable::nsStyleTable(StyleStructContext 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& aOther) const
|
|
{
|
|
if (mSpan != aOther.mSpan ||
|
|
mLayoutStrategy != aOther.mLayoutStrategy)
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
return NS_STYLE_HINT_NONE;
|
|
}
|
|
|
|
// -----------------------
|
|
// nsStyleTableBorder
|
|
|
|
nsStyleTableBorder::nsStyleTableBorder(StyleStructContext 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& aOther) 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 != aOther.mBorderCollapse) {
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
}
|
|
|
|
if ((mCaptionSide == aOther.mCaptionSide) &&
|
|
(mBorderSpacingCol == aOther.mBorderSpacingCol) &&
|
|
(mBorderSpacingRow == aOther.mBorderSpacingRow)) {
|
|
if (mEmptyCells == aOther.mEmptyCells)
|
|
return NS_STYLE_HINT_NONE;
|
|
return NS_STYLE_HINT_VISUAL;
|
|
}
|
|
else
|
|
return NS_STYLE_HINT_REFLOW;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleColor
|
|
//
|
|
|
|
nsStyleColor::nsStyleColor(StyleStructContext 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& aOther) const
|
|
{
|
|
if (mColor == aOther.mColor)
|
|
return NS_STYLE_HINT_NONE;
|
|
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 ||
|
|
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)
|
|
{
|
|
}
|
|
|
|
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();
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleImage
|
|
//
|
|
|
|
nsStyleImage::nsStyleImage()
|
|
: mType(eStyleImageType_Null)
|
|
, mCropRect(nullptr)
|
|
#ifdef DEBUG
|
|
, mImageTracked(false)
|
|
#endif
|
|
{
|
|
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)
|
|
#ifdef DEBUG
|
|
, mImageTracked(false)
|
|
#endif
|
|
{
|
|
// 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)
|
|
SetImageData(aOther.mImage);
|
|
else if (aOther.mType == eStyleImageType_Gradient)
|
|
SetGradientData(aOther.mGradient);
|
|
else if (aOther.mType == eStyleImageType_Element)
|
|
SetElementId(aOther.mElementId);
|
|
|
|
SetCropRect(aOther.mCropRect);
|
|
}
|
|
|
|
void
|
|
nsStyleImage::SetNull()
|
|
{
|
|
MOZ_ASSERT(!mImageTracked,
|
|
"Calling SetNull() with image tracked!");
|
|
|
|
if (mType == eStyleImageType_Gradient)
|
|
mGradient->Release();
|
|
else if (mType == eStyleImageType_Image)
|
|
NS_RELEASE(mImage);
|
|
else if (mType == eStyleImageType_Element)
|
|
free(mElementId);
|
|
|
|
mType = eStyleImageType_Null;
|
|
mCropRect = nullptr;
|
|
}
|
|
|
|
void
|
|
nsStyleImage::SetImageData(imgRequestProxy* aImage)
|
|
{
|
|
MOZ_ASSERT(!mImageTracked,
|
|
"Setting a new image without untracking the old one!");
|
|
|
|
NS_IF_ADDREF(aImage);
|
|
|
|
if (mType != eStyleImageType_Null)
|
|
SetNull();
|
|
|
|
if (aImage) {
|
|
mImage = aImage;
|
|
mType = eStyleImageType_Image;
|
|
}
|
|
mSubImages.Clear();
|
|
}
|
|
|
|
void
|
|
nsStyleImage::TrackImage(nsPresContext* aContext)
|
|
{
|
|
// Sanity
|
|
MOZ_ASSERT(!mImageTracked, "Already tracking image!");
|
|
MOZ_ASSERT(mType == eStyleImageType_Image,
|
|
"Can't track image when there isn't one!");
|
|
|
|
// Register the image with the document
|
|
nsIDocument* doc = aContext->Document();
|
|
if (doc)
|
|
doc->AddImage(mImage);
|
|
|
|
// Mark state
|
|
#ifdef DEBUG
|
|
mImageTracked = true;
|
|
#endif
|
|
}
|
|
|
|
void
|
|
nsStyleImage::UntrackImage(nsPresContext* aContext)
|
|
{
|
|
// Sanity
|
|
MOZ_ASSERT(mImageTracked, "Image not tracked!");
|
|
MOZ_ASSERT(mType == eStyleImageType_Image,
|
|
"Can't untrack image when there isn't one!");
|
|
|
|
// Unregister the image with the document
|
|
nsIDocument* doc = aContext->Document();
|
|
if (doc)
|
|
doc->RemoveImage(mImage, nsIDocument::REQUEST_DISCARD);
|
|
|
|
// Mark state
|
|
#ifdef DEBUG
|
|
mImageTracked = false;
|
|
#endif
|
|
}
|
|
|
|
void
|
|
nsStyleImage::SetGradientData(nsStyleGradient* aGradient)
|
|
{
|
|
if (aGradient)
|
|
aGradient->AddRef();
|
|
|
|
if (mType != eStyleImageType_Null)
|
|
SetNull();
|
|
|
|
if (aGradient) {
|
|
mGradient = aGradient;
|
|
mType = eStyleImageType_Gradient;
|
|
}
|
|
}
|
|
|
|
void
|
|
nsStyleImage::SetElementId(const char16_t* aElementId)
|
|
{
|
|
if (mType != eStyleImageType_Null)
|
|
SetNull();
|
|
|
|
if (aElementId) {
|
|
mElementId = NS_strdup(aElementId);
|
|
mType = eStyleImageType_Element;
|
|
}
|
|
}
|
|
|
|
void
|
|
nsStyleImage::SetCropRect(nsStyleSides* aCropRect)
|
|
{
|
|
if (aCropRect) {
|
|
mCropRect = new nsStyleSides(*aCropRect);
|
|
// There is really not much we can do if 'new' fails
|
|
} else {
|
|
mCropRect = nullptr;
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
bool
|
|
nsStyleImage::ComputeActualCropRect(nsIntRect& aActualCropRect,
|
|
bool* aIsEntireImage) const
|
|
{
|
|
if (mType != eStyleImageType_Image)
|
|
return false;
|
|
|
|
nsCOMPtr<imgIContainer> imageContainer;
|
|
mImage->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;
|
|
}
|
|
|
|
nsresult
|
|
nsStyleImage::StartDecoding() const
|
|
{
|
|
if ((mType == eStyleImageType_Image) && mImage)
|
|
return mImage->StartDecoding();
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
nsStyleImage::IsOpaque() const
|
|
{
|
|
if (!IsComplete())
|
|
return false;
|
|
|
|
if (mType == eStyleImageType_Gradient)
|
|
return mGradient->IsOpaque();
|
|
|
|
if (mType == eStyleImageType_Element)
|
|
return false;
|
|
|
|
MOZ_ASSERT(mType == eStyleImageType_Image, "unexpected image type");
|
|
|
|
nsCOMPtr<imgIContainer> imageContainer;
|
|
mImage->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->IsOpaque()) {
|
|
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;
|
|
bool rv = ComputeActualCropRect(actualCropRect);
|
|
NS_ASSERTION(rv, "ComputeActualCropRect() can not fail here");
|
|
return rv && !actualCropRect.IsEmpty();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
nsStyleImage::IsComplete() const
|
|
{
|
|
switch (mType) {
|
|
case eStyleImageType_Null:
|
|
return false;
|
|
case eStyleImageType_Gradient:
|
|
case eStyleImageType_Element:
|
|
return true;
|
|
case eStyleImageType_Image:
|
|
{
|
|
uint32_t status = imgIRequest::STATUS_ERROR;
|
|
return NS_SUCCEEDED(mImage->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:
|
|
return true;
|
|
case eStyleImageType_Image:
|
|
{
|
|
uint32_t status = imgIRequest::STATUS_ERROR;
|
|
return NS_SUCCEEDED(mImage->GetImageStatus(&status)) &&
|
|
!(status & imgIRequest::STATUS_ERROR) &&
|
|
(status & imgIRequest::STATUS_LOAD_COMPLETE);
|
|
}
|
|
default:
|
|
NS_NOTREACHED("unexpected image type");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static inline bool
|
|
EqualRects(const nsStyleSides* aRect1, const 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 EqualImages(mImage, aOther.mImage);
|
|
|
|
if (mType == eStyleImageType_Gradient)
|
|
return *mGradient == *aOther.mGradient;
|
|
|
|
if (mType == eStyleImageType_Element)
|
|
return NS_strcmp(mElementId, aOther.mElementId) == 0;
|
|
|
|
return true;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleImageLayers
|
|
//
|
|
|
|
const nsCSSProperty 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 nsCSSProperty 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()
|
|
: 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);
|
|
}
|
|
|
|
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& aOther) const
|
|
{
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
const nsStyleImageLayers& moreLayers =
|
|
mImageCount > aOther.mImageCount ?
|
|
*this : aOther;
|
|
const nsStyleImageLayers& lessLayers =
|
|
mImageCount > aOther.mImageCount ?
|
|
aOther : *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 (hint) {
|
|
return hint;
|
|
}
|
|
|
|
if (mAttachmentCount != aOther.mAttachmentCount ||
|
|
mBlendModeCount != aOther.mBlendModeCount ||
|
|
mClipCount != aOther.mClipCount ||
|
|
mCompositeCount != aOther.mCompositeCount ||
|
|
mMaskModeCount != aOther.mMaskModeCount ||
|
|
mOriginCount != aOther.mOriginCount ||
|
|
mRepeatCount != aOther.mRepeatCount ||
|
|
mPositionXCount != aOther.mPositionXCount ||
|
|
mPositionYCount != aOther.mPositionYCount ||
|
|
mSizeCount != aOther.mSizeCount) {
|
|
NS_UpdateHint(hint, nsChangeHint_NeutralChange);
|
|
}
|
|
|
|
return hint;
|
|
}
|
|
|
|
bool
|
|
nsStyleImageLayers::HasLayerWithImage() const
|
|
{
|
|
for (uint32_t i = 0; i < mImageCount; i++) {
|
|
// mLayers[i].mSourceURI can be nullptr if mask-image prop value is
|
|
// <element-reference> or <gradient>
|
|
// mLayers[i].mImage can be empty if mask-image prop value is a reference
|
|
// to SVG mask element.
|
|
// So we need to test both mSourceURI and mImage.
|
|
if (mLayers[i].mSourceURI || !mLayers[i].mImage.IsEmpty()) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
nsStyleImageLayers::Position::IsInitialValue() const
|
|
{
|
|
if (mXPosition.mPercent == 0.0 && mXPosition.mLength == 0 &&
|
|
mXPosition.mHasPercent && mYPosition.mPercent == 0.0 &&
|
|
mYPosition.mLength == 0 && mYPosition.mHasPercent) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void
|
|
nsStyleImageLayers::Position::SetInitialPercentValues(float aPercentVal)
|
|
{
|
|
mXPosition.mPercent = aPercentVal;
|
|
mXPosition.mLength = 0;
|
|
mXPosition.mHasPercent = true;
|
|
mYPosition.mPercent = aPercentVal;
|
|
mYPosition.mLength = 0;
|
|
mYPosition.mHasPercent = true;
|
|
}
|
|
|
|
void
|
|
nsStyleImageLayers::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;
|
|
aImage.GetImageData()->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);
|
|
}
|
|
|
|
void
|
|
nsStyleImageLayers::Repeat::SetInitialValues()
|
|
{
|
|
mXRepeat = NS_STYLE_IMAGELAYER_REPEAT_REPEAT;
|
|
mYRepeat = NS_STYLE_IMAGELAYER_REPEAT_REPEAT;
|
|
}
|
|
|
|
nsStyleImageLayers::Layer::Layer()
|
|
: mClip(NS_STYLE_IMAGELAYER_CLIP_BORDER),
|
|
mOrigin(NS_STYLE_IMAGELAYER_ORIGIN_PADDING),
|
|
mAttachment(NS_STYLE_IMAGELAYER_ATTACHMENT_SCROLL),
|
|
mBlendMode(NS_STYLE_BLEND_NORMAL),
|
|
mComposite(NS_STYLE_MASK_COMPOSITE_ADD),
|
|
mMaskMode(NS_STYLE_MASK_MODE_MATCH_SOURCE)
|
|
{
|
|
mPosition.SetInitialPercentValues(0.0f); // Initial value is "0% 0%"
|
|
mImage.SetNull();
|
|
mRepeat.SetInitialValues();
|
|
mSize.SetInitialValues();
|
|
}
|
|
|
|
nsStyleImageLayers::Layer::~Layer()
|
|
{
|
|
}
|
|
|
|
bool
|
|
nsStyleImageLayers::Layer::RenderingMightDependOnPositioningAreaSizeChange() const
|
|
{
|
|
// Do we even have an image?
|
|
if (mImage.IsEmpty()) {
|
|
return false;
|
|
}
|
|
|
|
return mPosition.DependsOnPositioningAreaSize() ||
|
|
mSize.DependsOnPositioningAreaSize(mImage);
|
|
}
|
|
|
|
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 &&
|
|
EqualURIs(mSourceURI, aOther.mSourceURI);
|
|
}
|
|
|
|
nsChangeHint
|
|
nsStyleImageLayers::Layer::CalcDifference(const nsStyleImageLayers::Layer& aOther) const
|
|
{
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
if (!EqualURIs(mSourceURI, aOther.mSourceURI)) {
|
|
NS_UpdateHint(hint, nsChangeHint_UpdateEffects);
|
|
NS_UpdateHint(hint, nsChangeHint_RepaintFrame);
|
|
// Mask changes require that we update the PreEffectsBBoxProperty,
|
|
// which is done during overflow computation.
|
|
NS_UpdateHint(hint, nsChangeHint_UpdateOverflow);
|
|
} else if (mAttachment != aOther.mAttachment ||
|
|
mClip != aOther.mClip ||
|
|
mOrigin != aOther.mOrigin ||
|
|
mRepeat != aOther.mRepeat ||
|
|
mBlendMode != aOther.mBlendMode ||
|
|
mSize != aOther.mSize ||
|
|
mImage != aOther.mImage ||
|
|
mMaskMode != aOther.mMaskMode ||
|
|
mComposite != aOther.mComposite) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (mPosition != aOther.mPosition) {
|
|
hint |= nsChangeHint_UpdateBackgroundPosition;
|
|
}
|
|
|
|
return hint;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleBackground
|
|
//
|
|
|
|
nsStyleBackground::nsStyleBackground(StyleStructContext aContext)
|
|
: mBackgroundColor(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)
|
|
{
|
|
// Untrack all the images stored in our layers
|
|
mImage.UntrackImages(aContext);
|
|
|
|
this->~nsStyleBackground();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(eArenaObjectID_nsStyleBackground, this);
|
|
}
|
|
|
|
nsChangeHint nsStyleBackground::CalcDifference(const nsStyleBackground& aOther) const
|
|
{
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
if (mBackgroundColor != aOther.mBackgroundColor) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
hint |= mImage.CalcDifference(aOther.mImage);
|
|
|
|
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;
|
|
}
|
|
|
|
bool nsStyleBackground::IsTransparent() const
|
|
{
|
|
return BottomLayer().mImage.IsEmpty() &&
|
|
mImage.mImageCount == 1 &&
|
|
NS_GET_A(mBackgroundColor) == 0;
|
|
}
|
|
|
|
void nsTimingFunction::AssignFromKeyword(int32_t aTimingFunctionType)
|
|
{
|
|
switch (aTimingFunctionType) {
|
|
case NS_STYLE_TRANSITION_TIMING_FUNCTION_STEP_START:
|
|
mType = Type::StepStart;
|
|
mStepSyntax = StepSyntax::Keyword;
|
|
mSteps = 1;
|
|
return;
|
|
default:
|
|
MOZ_FALLTHROUGH_ASSERT("aTimingFunctionType must be a keyword value");
|
|
case NS_STYLE_TRANSITION_TIMING_FUNCTION_STEP_END:
|
|
mType = Type::StepEnd;
|
|
mStepSyntax = StepSyntax::Keyword;
|
|
mSteps = 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];
|
|
}
|
|
|
|
mozilla::StyleTransition::StyleTransition(const StyleTransition& aCopy)
|
|
: mTimingFunction(aCopy.mTimingFunction)
|
|
, mDuration(aCopy.mDuration)
|
|
, mDelay(aCopy.mDelay)
|
|
, mProperty(aCopy.mProperty)
|
|
, mUnknownProperty(aCopy.mUnknownProperty)
|
|
{
|
|
}
|
|
|
|
void
|
|
mozilla::StyleTransition::SetInitialValues()
|
|
{
|
|
mTimingFunction = nsTimingFunction(NS_STYLE_TRANSITION_TIMING_FUNCTION_EASE);
|
|
mDuration = 0.0;
|
|
mDelay = 0.0;
|
|
mProperty = eCSSPropertyExtra_all_properties;
|
|
}
|
|
|
|
void
|
|
mozilla::StyleTransition::SetUnknownProperty(nsCSSProperty aProperty,
|
|
const nsAString& aPropertyString)
|
|
{
|
|
MOZ_ASSERT(nsCSSProps::LookupProperty(aPropertyString,
|
|
CSSEnabledState::eForAllContent) ==
|
|
aProperty,
|
|
"property and property string should match");
|
|
MOZ_ASSERT(aProperty == eCSSProperty_UNKNOWN ||
|
|
aProperty == eCSSPropertyExtra_variable,
|
|
"should be either unknown or custom property");
|
|
mProperty = aProperty;
|
|
mUnknownProperty = NS_Atomize(aPropertyString);
|
|
}
|
|
|
|
bool
|
|
mozilla::StyleTransition::operator==(const mozilla::StyleTransition& aOther) const
|
|
{
|
|
return mTimingFunction == aOther.mTimingFunction &&
|
|
mDuration == aOther.mDuration &&
|
|
mDelay == aOther.mDelay &&
|
|
mProperty == aOther.mProperty &&
|
|
(mProperty != eCSSProperty_UNKNOWN ||
|
|
mUnknownProperty == aOther.mUnknownProperty);
|
|
}
|
|
|
|
mozilla::StyleAnimation::StyleAnimation(const mozilla::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
|
|
mozilla::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
|
|
mozilla::StyleAnimation::operator==(const mozilla::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(StyleStructContext aContext)
|
|
: mDisplay(NS_STYLE_DISPLAY_INLINE)
|
|
, mOriginalDisplay(NS_STYLE_DISPLAY_INLINE)
|
|
, mContain(NS_STYLE_CONTAIN_NONE)
|
|
, mAppearance(NS_THEME_NONE)
|
|
, mPosition(NS_STYLE_POSITION_STATIC)
|
|
, mFloats(NS_STYLE_FLOAT_NONE)
|
|
, mOriginalFloats(NS_STYLE_FLOAT_NONE)
|
|
, mBreakType(NS_STYLE_CLEAR_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(NS_STYLE_ORIENT_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(NS_STYLE_TRANSFORM_BOX_BORDER_BOX)
|
|
, mSpecifiedTransform(nullptr)
|
|
, mChildPerspective(eStyleUnit_None)
|
|
, 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);
|
|
mTransformOrigin[0].SetPercentValue(0.5f); // Transform is centered on origin
|
|
mTransformOrigin[1].SetPercentValue(0.5f);
|
|
mTransformOrigin[2].SetCoordValue(0);
|
|
mPerspectiveOrigin[0].SetPercentValue(0.5f);
|
|
mPerspectiveOrigin[1].SetPercentValue(0.5f);
|
|
|
|
// 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)
|
|
, mAppearance(aSource.mAppearance)
|
|
, mPosition(aSource.mPosition)
|
|
, mFloats(aSource.mFloats)
|
|
, mOriginalFloats(aSource.mOriginalFloats)
|
|
, 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)
|
|
, mChildPerspective(aSource.mChildPerspective)
|
|
, 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)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleDisplay);
|
|
|
|
/* Copy over transform origin. */
|
|
mTransformOrigin[0] = aSource.mTransformOrigin[0];
|
|
mTransformOrigin[1] = aSource.mTransformOrigin[1];
|
|
mTransformOrigin[2] = aSource.mTransformOrigin[2];
|
|
mPerspectiveOrigin[0] = aSource.mPerspectiveOrigin[0];
|
|
mPerspectiveOrigin[1] = aSource.mPerspectiveOrigin[1];
|
|
}
|
|
|
|
nsChangeHint nsStyleDisplay::CalcDifference(const nsStyleDisplay& aOther) const
|
|
{
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
if (!EqualURIs(mBinding, aOther.mBinding)
|
|
|| mPosition != aOther.mPosition
|
|
|| mDisplay != aOther.mDisplay
|
|
|| mContain != aOther.mContain
|
|
|| (mFloats == NS_STYLE_FLOAT_NONE) != (aOther.mFloats == NS_STYLE_FLOAT_NONE)
|
|
|| mOverflowX != aOther.mOverflowX
|
|
|| mOverflowY != aOther.mOverflowY
|
|
|| mScrollBehavior != aOther.mScrollBehavior
|
|
|| mScrollSnapTypeX != aOther.mScrollSnapTypeX
|
|
|| mScrollSnapTypeY != aOther.mScrollSnapTypeY
|
|
|| mScrollSnapPointsX != aOther.mScrollSnapPointsX
|
|
|| mScrollSnapPointsY != aOther.mScrollSnapPointsY
|
|
|| mScrollSnapDestination != aOther.mScrollSnapDestination
|
|
|| mTopLayer != aOther.mTopLayer
|
|
|| mResize != aOther.mResize)
|
|
NS_UpdateHint(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 ((mAppearance == NS_THEME_TEXTFIELD &&
|
|
aOther.mAppearance != NS_THEME_TEXTFIELD) ||
|
|
(mAppearance != NS_THEME_TEXTFIELD &&
|
|
aOther.mAppearance == 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 (mFloats != aOther.mFloats) {
|
|
// Changing which side we float on doesn't affect descendants directly
|
|
NS_UpdateHint(hint,
|
|
NS_SubtractHint(nsChangeHint_AllReflowHints,
|
|
NS_CombineHint(nsChangeHint_ClearDescendantIntrinsics,
|
|
nsChangeHint_NeedDirtyReflow)));
|
|
}
|
|
|
|
if (mVerticalAlign != aOther.mVerticalAlign) {
|
|
// XXX Can this just be AllReflowHints + RepaintFrame, and be included in
|
|
// the block below?
|
|
NS_UpdateHint(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 != aOther.mBreakType
|
|
|| mBreakInside != aOther.mBreakInside
|
|
|| mBreakBefore != aOther.mBreakBefore
|
|
|| mBreakAfter != aOther.mBreakAfter
|
|
|| mAppearance != aOther.mAppearance
|
|
|| mOrient != aOther.mOrient
|
|
|| mOverflowClipBox != aOther.mOverflowClipBox)
|
|
NS_UpdateHint(hint, NS_CombineHint(nsChangeHint_AllReflowHints,
|
|
nsChangeHint_RepaintFrame));
|
|
|
|
if (mIsolation != aOther.mIsolation) {
|
|
NS_UpdateHint(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() != aOther.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).
|
|
NS_UpdateHint(hint, NS_CombineHint(nsChangeHint_UpdateContainingBlock,
|
|
NS_CombineHint(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 != !aOther.mSpecifiedTransform ||
|
|
(mSpecifiedTransform &&
|
|
*mSpecifiedTransform != *aOther.mSpecifiedTransform)) {
|
|
NS_UpdateHint(transformHint, nsChangeHint_UpdateTransformLayer);
|
|
|
|
if (mSpecifiedTransform &&
|
|
aOther.mSpecifiedTransform) {
|
|
NS_UpdateHint(transformHint, nsChangeHint_UpdatePostTransformOverflow);
|
|
} else {
|
|
NS_UpdateHint(transformHint, nsChangeHint_UpdateOverflow);
|
|
}
|
|
}
|
|
|
|
const nsChangeHint kUpdateOverflowAndRepaintHint =
|
|
NS_CombineHint(nsChangeHint_UpdateOverflow, nsChangeHint_RepaintFrame);
|
|
for (uint8_t index = 0; index < 3; ++index)
|
|
if (mTransformOrigin[index] != aOther.mTransformOrigin[index]) {
|
|
NS_UpdateHint(transformHint, NS_CombineHint(nsChangeHint_UpdateTransformLayer,
|
|
nsChangeHint_UpdatePostTransformOverflow));
|
|
break;
|
|
}
|
|
|
|
for (uint8_t index = 0; index < 2; ++index)
|
|
if (mPerspectiveOrigin[index] != aOther.mPerspectiveOrigin[index]) {
|
|
NS_UpdateHint(transformHint, kUpdateOverflowAndRepaintHint);
|
|
break;
|
|
}
|
|
|
|
if (HasPerspectiveStyle() != aOther.HasPerspectiveStyle()) {
|
|
// A change from/to being a containing block for position:fixed.
|
|
NS_UpdateHint(hint, nsChangeHint_UpdateContainingBlock);
|
|
}
|
|
|
|
if (mChildPerspective != aOther.mChildPerspective ||
|
|
mTransformStyle != aOther.mTransformStyle ||
|
|
mTransformBox != aOther.mTransformBox)
|
|
NS_UpdateHint(transformHint, kUpdateOverflowAndRepaintHint);
|
|
|
|
if (mBackfaceVisibility != aOther.mBackfaceVisibility)
|
|
NS_UpdateHint(transformHint, nsChangeHint_RepaintFrame);
|
|
|
|
if (transformHint) {
|
|
if (HasTransformStyle()) {
|
|
NS_UpdateHint(hint, transformHint);
|
|
} else {
|
|
NS_UpdateHint(hint, nsChangeHint_NeutralChange);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Note that the HasTransformStyle() != aOther.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 ^ aOther.mWillChangeBitField;
|
|
if (willChangeBitsChanged & (NS_STYLE_WILL_CHANGE_STACKING_CONTEXT |
|
|
NS_STYLE_WILL_CHANGE_SCROLL |
|
|
NS_STYLE_WILL_CHANGE_OPACITY)) {
|
|
NS_UpdateHint(hint, nsChangeHint_RepaintFrame);
|
|
}
|
|
|
|
if (willChangeBitsChanged & NS_STYLE_WILL_CHANGE_FIXPOS_CB) {
|
|
NS_UpdateHint(hint, nsChangeHint_UpdateContainingBlock);
|
|
}
|
|
|
|
// 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 != aOther.mOriginalDisplay ||
|
|
mOriginalFloats != aOther.mOriginalFloats ||
|
|
mTransitions != aOther.mTransitions ||
|
|
mTransitionTimingFunctionCount !=
|
|
aOther.mTransitionTimingFunctionCount ||
|
|
mTransitionDurationCount != aOther.mTransitionDurationCount ||
|
|
mTransitionDelayCount != aOther.mTransitionDelayCount ||
|
|
mTransitionPropertyCount != aOther.mTransitionPropertyCount ||
|
|
mAnimations != aOther.mAnimations ||
|
|
mAnimationTimingFunctionCount != aOther.mAnimationTimingFunctionCount ||
|
|
mAnimationDurationCount != aOther.mAnimationDurationCount ||
|
|
mAnimationDelayCount != aOther.mAnimationDelayCount ||
|
|
mAnimationNameCount != aOther.mAnimationNameCount ||
|
|
mAnimationDirectionCount != aOther.mAnimationDirectionCount ||
|
|
mAnimationFillModeCount != aOther.mAnimationFillModeCount ||
|
|
mAnimationPlayStateCount != aOther.mAnimationPlayStateCount ||
|
|
mAnimationIterationCountCount != aOther.mAnimationIterationCountCount ||
|
|
mScrollSnapCoordinate != aOther.mScrollSnapCoordinate)) {
|
|
NS_UpdateHint(hint, nsChangeHint_NeutralChange);
|
|
}
|
|
|
|
return hint;
|
|
}
|
|
|
|
// --------------------
|
|
// nsStyleVisibility
|
|
//
|
|
|
|
nsStyleVisibility::nsStyleVisibility(StyleStructContext 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& aOther) const
|
|
{
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
if (mDirection != aOther.mDirection || mWritingMode != aOther.mWritingMode) {
|
|
// It's important that a change in mWritingMode results in frame
|
|
// reconstruction, because it may affect intrinsic size (see
|
|
// nsSubDocumentFrame::GetIntrinsicISize/BSize).
|
|
NS_UpdateHint(hint, nsChangeHint_ReconstructFrame);
|
|
} else {
|
|
if ((mImageOrientation != aOther.mImageOrientation)) {
|
|
NS_UpdateHint(hint, nsChangeHint_AllReflowHints);
|
|
NS_UpdateHint(hint, nsChangeHint_RepaintFrame);
|
|
}
|
|
if (mVisible != aOther.mVisible) {
|
|
if ((NS_STYLE_VISIBILITY_COLLAPSE == mVisible) ||
|
|
(NS_STYLE_VISIBILITY_COLLAPSE == aOther.mVisible)) {
|
|
NS_UpdateHint(hint, NS_STYLE_HINT_REFLOW);
|
|
} else {
|
|
NS_UpdateHint(hint, NS_STYLE_HINT_VISUAL);
|
|
}
|
|
}
|
|
if (mTextOrientation != aOther.mTextOrientation) {
|
|
NS_UpdateHint(hint, NS_STYLE_HINT_REFLOW);
|
|
}
|
|
if (mImageRendering != aOther.mImageRendering) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
}
|
|
if (mColorAdjust != aOther.mColorAdjust) {
|
|
// color-adjust only affects media where dynamic changes can't happen.
|
|
NS_UpdateHint(hint, nsChangeHint_NeutralChange);
|
|
}
|
|
}
|
|
return hint;
|
|
}
|
|
|
|
nsStyleContentData::~nsStyleContentData()
|
|
{
|
|
MOZ_ASSERT(!mImageTracked,
|
|
"nsStyleContentData being destroyed while still tracking image!");
|
|
if (mType == eStyleContentType_Image) {
|
|
NS_IF_RELEASE(mContent.mImage);
|
|
} else if (mType == eStyleContentType_Counter ||
|
|
mType == eStyleContentType_Counters) {
|
|
mContent.mCounters->Release();
|
|
} else if (mContent.mString) {
|
|
free(mContent.mString);
|
|
}
|
|
}
|
|
|
|
nsStyleContentData& nsStyleContentData::operator=(const nsStyleContentData& aOther)
|
|
{
|
|
if (this == &aOther)
|
|
return *this;
|
|
this->~nsStyleContentData();
|
|
new (this) nsStyleContentData();
|
|
|
|
mType = aOther.mType;
|
|
if (mType == eStyleContentType_Image) {
|
|
mContent.mImage = aOther.mContent.mImage;
|
|
NS_IF_ADDREF(mContent.mImage);
|
|
} 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;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
bool nsStyleContentData::operator==(const nsStyleContentData& aOther) const
|
|
{
|
|
if (mType != aOther.mType)
|
|
return false;
|
|
if (mType == eStyleContentType_Image) {
|
|
if (!mContent.mImage || !aOther.mContent.mImage)
|
|
return mContent.mImage == aOther.mContent.mImage;
|
|
bool eq;
|
|
nsCOMPtr<nsIURI> thisURI, otherURI;
|
|
mContent.mImage->GetURI(getter_AddRefs(thisURI));
|
|
aOther.mContent.mImage->GetURI(getter_AddRefs(otherURI));
|
|
return thisURI == otherURI || // handles null==null
|
|
(thisURI && otherURI &&
|
|
NS_SUCCEEDED(thisURI->Equals(otherURI, &eq)) &&
|
|
eq);
|
|
}
|
|
if (mType == eStyleContentType_Counter ||
|
|
mType == eStyleContentType_Counters)
|
|
return *mContent.mCounters == *aOther.mContent.mCounters;
|
|
return safe_strcmp(mContent.mString, aOther.mContent.mString) == 0;
|
|
}
|
|
|
|
void
|
|
nsStyleContentData::TrackImage(nsPresContext* aContext)
|
|
{
|
|
// Sanity
|
|
MOZ_ASSERT(!mImageTracked, "Already tracking image!");
|
|
MOZ_ASSERT(mType == eStyleContentType_Image,
|
|
"Trying to do image tracking on non-image!");
|
|
MOZ_ASSERT(mContent.mImage,
|
|
"Can't track image when there isn't one!");
|
|
|
|
// Register the image with the document
|
|
nsIDocument* doc = aContext->Document();
|
|
if (doc)
|
|
doc->AddImage(mContent.mImage);
|
|
|
|
// Mark state
|
|
#ifdef DEBUG
|
|
mImageTracked = true;
|
|
#endif
|
|
}
|
|
|
|
void
|
|
nsStyleContentData::UntrackImage(nsPresContext* aContext)
|
|
{
|
|
// Sanity
|
|
MOZ_ASSERT(mImageTracked, "Image not tracked!");
|
|
MOZ_ASSERT(mType == eStyleContentType_Image,
|
|
"Trying to do image tracking on non-image!");
|
|
MOZ_ASSERT(mContent.mImage,
|
|
"Can't untrack image when there isn't one!");
|
|
|
|
// Unregister the image with the document
|
|
nsIDocument* doc = aContext->Document();
|
|
if (doc)
|
|
doc->RemoveImage(mContent.mImage, nsIDocument::REQUEST_DISCARD);
|
|
|
|
// Mark state
|
|
#ifdef DEBUG
|
|
mImageTracked = false;
|
|
#endif
|
|
}
|
|
|
|
|
|
//-----------------------
|
|
// nsStyleContent
|
|
//
|
|
|
|
nsStyleContent::nsStyleContent(StyleStructContext aContext)
|
|
: mMarkerOffset(eStyleUnit_Auto)
|
|
, mContents(nullptr)
|
|
, mIncrements(nullptr)
|
|
, mResets(nullptr)
|
|
, mContentCount(0)
|
|
, mIncrementCount(0)
|
|
, mResetCount(0)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleContent);
|
|
}
|
|
|
|
nsStyleContent::~nsStyleContent()
|
|
{
|
|
MOZ_COUNT_DTOR(nsStyleContent);
|
|
DELETE_ARRAY_IF(mContents);
|
|
DELETE_ARRAY_IF(mIncrements);
|
|
DELETE_ARRAY_IF(mResets);
|
|
}
|
|
|
|
void
|
|
nsStyleContent::Destroy(nsPresContext* aContext)
|
|
{
|
|
// Unregister any images we might have with the document.
|
|
for (uint32_t i = 0; i < mContentCount; ++i) {
|
|
if ((mContents[i].mType == eStyleContentType_Image) &&
|
|
mContents[i].mContent.mImage) {
|
|
mContents[i].UntrackImage(aContext);
|
|
}
|
|
}
|
|
|
|
this->~nsStyleContent();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(eArenaObjectID_nsStyleContent, this);
|
|
}
|
|
|
|
nsStyleContent::nsStyleContent(const nsStyleContent& aSource)
|
|
: mMarkerOffset(aSource.mMarkerOffset)
|
|
, mContents(nullptr)
|
|
, mIncrements(nullptr)
|
|
, mResets(nullptr)
|
|
, mContentCount(0)
|
|
, mIncrementCount(0)
|
|
, mResetCount(0)
|
|
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleContent);
|
|
|
|
uint32_t index;
|
|
if (NS_SUCCEEDED(AllocateContents(aSource.ContentCount()))) {
|
|
for (index = 0; index < mContentCount; index++) {
|
|
ContentAt(index) = aSource.ContentAt(index);
|
|
}
|
|
}
|
|
|
|
if (NS_SUCCEEDED(AllocateCounterIncrements(aSource.CounterIncrementCount()))) {
|
|
for (index = 0; index < mIncrementCount; index++) {
|
|
const nsStyleCounterData *data = aSource.GetCounterIncrementAt(index);
|
|
mIncrements[index].mCounter = data->mCounter;
|
|
mIncrements[index].mValue = data->mValue;
|
|
}
|
|
}
|
|
|
|
if (NS_SUCCEEDED(AllocateCounterResets(aSource.CounterResetCount()))) {
|
|
for (index = 0; index < mResetCount; index++) {
|
|
const nsStyleCounterData *data = aSource.GetCounterResetAt(index);
|
|
mResets[index].mCounter = data->mCounter;
|
|
mResets[index].mValue = data->mValue;
|
|
}
|
|
}
|
|
}
|
|
|
|
nsChangeHint nsStyleContent::CalcDifference(const nsStyleContent& aOther) const
|
|
{
|
|
// In ReResolveStyleContext 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 ReResolveStyleContext 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 ReResolveStyleContext.
|
|
|
|
if (mContentCount != aOther.mContentCount ||
|
|
mIncrementCount != aOther.mIncrementCount ||
|
|
mResetCount != aOther.mResetCount) {
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
}
|
|
|
|
uint32_t ix = mContentCount;
|
|
while (0 < ix--) {
|
|
if (mContents[ix] != aOther.mContents[ix]) {
|
|
// Unfortunately we need to reframe here; a simple reflow
|
|
// will not pick up different text or different image URLs,
|
|
// since we set all that up in the CSSFrameConstructor
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
}
|
|
}
|
|
ix = mIncrementCount;
|
|
while (0 < ix--) {
|
|
if ((mIncrements[ix].mValue != aOther.mIncrements[ix].mValue) ||
|
|
(mIncrements[ix].mCounter != aOther.mIncrements[ix].mCounter)) {
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
}
|
|
}
|
|
ix = mResetCount;
|
|
while (0 < ix--) {
|
|
if ((mResets[ix].mValue != aOther.mResets[ix].mValue) ||
|
|
(mResets[ix].mCounter != aOther.mResets[ix].mCounter)) {
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
}
|
|
}
|
|
if (mMarkerOffset != aOther.mMarkerOffset) {
|
|
return NS_STYLE_HINT_REFLOW;
|
|
}
|
|
return NS_STYLE_HINT_NONE;
|
|
}
|
|
|
|
nsresult nsStyleContent::AllocateContents(uint32_t aCount)
|
|
{
|
|
// We need to run the destructors of the elements of mContents, so we
|
|
// delete and reallocate even if aCount == mContentCount. (If
|
|
// nsStyleContentData had its members private and managed their
|
|
// ownership on setting, we wouldn't need this, but that seems
|
|
// unnecessary at this point.)
|
|
DELETE_ARRAY_IF(mContents);
|
|
if (aCount) {
|
|
mContents = new nsStyleContentData[aCount];
|
|
if (! mContents) {
|
|
mContentCount = 0;
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
}
|
|
mContentCount = aCount;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
// --------------------
|
|
// nsStyleTextReset
|
|
//
|
|
|
|
nsStyleTextReset::nsStyleTextReset(StyleStructContext aContext)
|
|
: mTextDecorationLine(NS_STYLE_TEXT_DECORATION_LINE_NONE)
|
|
, mUnicodeBidi(NS_STYLE_UNICODE_BIDI_NORMAL)
|
|
, mTextDecorationStyle(NS_STYLE_TEXT_DECORATION_STYLE_SOLID |
|
|
BORDER_COLOR_FOREGROUND)
|
|
, mTextDecorationColor(NS_RGB(0, 0, 0))
|
|
{
|
|
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& aOther) const
|
|
{
|
|
if (mUnicodeBidi != aOther.mUnicodeBidi) {
|
|
return NS_STYLE_HINT_REFLOW;
|
|
}
|
|
|
|
uint8_t lineStyle = GetDecorationStyle();
|
|
uint8_t otherLineStyle = aOther.GetDecorationStyle();
|
|
if (mTextDecorationLine != aOther.mTextDecorationLine ||
|
|
lineStyle != otherLineStyle) {
|
|
// 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
|
|
nscolor decColor, otherDecColor;
|
|
bool isFG, otherIsFG;
|
|
GetDecorationColor(decColor, isFG);
|
|
aOther.GetDecorationColor(otherDecColor, otherIsFG);
|
|
if (isFG != otherIsFG || (!isFG && decColor != otherDecColor)) {
|
|
return nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (mTextOverflow != aOther.mTextOverflow) {
|
|
return nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
return NS_STYLE_HINT_NONE;
|
|
}
|
|
|
|
// 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(StyleStructContext aContext)
|
|
: mTextAlign(NS_STYLE_TEXT_ALIGN_START)
|
|
, mTextAlignLast(NS_STYLE_TEXT_ALIGN_AUTO)
|
|
, mTextAlignTrue(false)
|
|
, mTextAlignLastTrue(false)
|
|
, mTextEmphasisColorForeground(true)
|
|
, mWebkitTextFillColorForeground(true)
|
|
, mWebkitTextStrokeColorForeground(true)
|
|
, mTextTransform(NS_STYLE_TEXT_TRANSFORM_NONE)
|
|
, mWhiteSpace(NS_STYLE_WHITESPACE_NORMAL)
|
|
, mWordBreak(NS_STYLE_WORDBREAK_NORMAL)
|
|
, mWordWrap(NS_STYLE_WORDWRAP_NORMAL)
|
|
, mHyphens(NS_STYLE_HYPHENS_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)
|
|
, mTabSize(NS_STYLE_TABSIZE_INITIAL)
|
|
, mTextEmphasisColor(aContext.DefaultColor())
|
|
, mWebkitTextFillColor(aContext.DefaultColor())
|
|
, mWebkitTextStrokeColor(aContext.DefaultColor())
|
|
, mWordSpacing(0, nsStyleCoord::CoordConstructor)
|
|
, mLetterSpacing(eStyleUnit_Normal)
|
|
, mLineHeight(eStyleUnit_Normal)
|
|
, mTextIndent(0, nsStyleCoord::CoordConstructor)
|
|
, mWebkitTextStrokeWidth(0, nsStyleCoord::CoordConstructor)
|
|
, mTextShadow(nullptr)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleText);
|
|
nsCOMPtr<nsIAtom> language = aContext.GetContentLanguage();
|
|
mTextEmphasisPosition = language &&
|
|
nsStyleUtil::MatchesLanguagePrefix(language, MOZ_UTF16("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)
|
|
, mTextEmphasisColorForeground(aSource.mTextEmphasisColorForeground)
|
|
, mWebkitTextFillColorForeground(aSource.mWebkitTextFillColorForeground)
|
|
, mWebkitTextStrokeColorForeground(aSource.mWebkitTextStrokeColorForeground)
|
|
, mTextTransform(aSource.mTextTransform)
|
|
, mWhiteSpace(aSource.mWhiteSpace)
|
|
, mWordBreak(aSource.mWordBreak)
|
|
, mWordWrap(aSource.mWordWrap)
|
|
, 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)
|
|
, mTabSize(aSource.mTabSize)
|
|
, mTextEmphasisColor(aSource.mTextEmphasisColor)
|
|
, mWebkitTextFillColor(aSource.mWebkitTextFillColor)
|
|
, mWebkitTextStrokeColor(aSource.mWebkitTextStrokeColor)
|
|
, 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& aOther) const
|
|
{
|
|
if (WhiteSpaceOrNewlineIsSignificant() !=
|
|
aOther.WhiteSpaceOrNewlineIsSignificant()) {
|
|
// This may require construction of suppressed text frames
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
}
|
|
|
|
if (mTextCombineUpright != aOther.mTextCombineUpright ||
|
|
mControlCharacterVisibility != aOther.mControlCharacterVisibility) {
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
|
|
if ((mTextAlign != aOther.mTextAlign) ||
|
|
(mTextAlignLast != aOther.mTextAlignLast) ||
|
|
(mTextAlignTrue != aOther.mTextAlignTrue) ||
|
|
(mTextAlignLastTrue != aOther.mTextAlignLastTrue) ||
|
|
(mTextTransform != aOther.mTextTransform) ||
|
|
(mWhiteSpace != aOther.mWhiteSpace) ||
|
|
(mWordBreak != aOther.mWordBreak) ||
|
|
(mWordWrap != aOther.mWordWrap) ||
|
|
(mHyphens != aOther.mHyphens) ||
|
|
(mRubyAlign != aOther.mRubyAlign) ||
|
|
(mRubyPosition != aOther.mRubyPosition) ||
|
|
(mTextSizeAdjust != aOther.mTextSizeAdjust) ||
|
|
(mLetterSpacing != aOther.mLetterSpacing) ||
|
|
(mLineHeight != aOther.mLineHeight) ||
|
|
(mTextIndent != aOther.mTextIndent) ||
|
|
(mWordSpacing != aOther.mWordSpacing) ||
|
|
(mTabSize != aOther.mTabSize))
|
|
return NS_STYLE_HINT_REFLOW;
|
|
|
|
if (HasTextEmphasis() != aOther.HasTextEmphasis() ||
|
|
(HasTextEmphasis() &&
|
|
mTextEmphasisPosition != aOther.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 != aOther.mTextRendering) {
|
|
hint |= nsChangeHint_NeedReflow |
|
|
nsChangeHint_NeedDirtyReflow | // XXX remove me: bug 876085
|
|
nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (!AreShadowArraysEqual(mTextShadow, aOther.mTextShadow) ||
|
|
mTextEmphasisStyle != aOther.mTextEmphasisStyle ||
|
|
mTextEmphasisStyleString != aOther.mTextEmphasisStyleString ||
|
|
mWebkitTextStrokeWidth != aOther.mWebkitTextStrokeWidth) {
|
|
hint |= nsChangeHint_UpdateSubtreeOverflow |
|
|
nsChangeHint_SchedulePaint |
|
|
nsChangeHint_RepaintFrame;
|
|
|
|
// We don't add any other hints below.
|
|
return hint;
|
|
}
|
|
|
|
MOZ_ASSERT(!mTextEmphasisColorForeground ||
|
|
!aOther.mTextEmphasisColorForeground ||
|
|
mTextEmphasisColor == aOther.mTextEmphasisColor,
|
|
"If the text-emphasis-color are both foreground color, "
|
|
"mTextEmphasisColor should also be identical");
|
|
if (mTextEmphasisColorForeground != aOther.mTextEmphasisColorForeground ||
|
|
mTextEmphasisColor != aOther.mTextEmphasisColor ||
|
|
mWebkitTextFillColorForeground != aOther.mWebkitTextFillColorForeground ||
|
|
mWebkitTextFillColor != aOther.mWebkitTextFillColor ||
|
|
mWebkitTextStrokeColorForeground != aOther.mWebkitTextStrokeColorForeground ||
|
|
mWebkitTextStrokeColor != aOther.mWebkitTextStrokeColor) {
|
|
NS_UpdateHint(hint, nsChangeHint_SchedulePaint);
|
|
NS_UpdateHint(hint, nsChangeHint_RepaintFrame);
|
|
}
|
|
|
|
if (hint) {
|
|
return hint;
|
|
}
|
|
|
|
if (mTextEmphasisPosition != aOther.mTextEmphasisPosition) {
|
|
return nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
return NS_STYLE_HINT_NONE;
|
|
}
|
|
|
|
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)
|
|
{
|
|
SetImage(aOther.GetImage());
|
|
}
|
|
|
|
nsCursorImage::~nsCursorImage()
|
|
{
|
|
SetImage(nullptr);
|
|
}
|
|
|
|
nsCursorImage&
|
|
nsCursorImage::operator=(const nsCursorImage& aOther)
|
|
{
|
|
if (this != &aOther) {
|
|
mHaveHotspot = aOther.mHaveHotspot;
|
|
mHotspotX = aOther.mHotspotX;
|
|
mHotspotY = aOther.mHotspotY;
|
|
SetImage(aOther.GetImage());
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
nsStyleUserInterface::nsStyleUserInterface(StyleStructContext aContext)
|
|
: mUserInput(NS_STYLE_USER_INPUT_AUTO)
|
|
, mUserModify(NS_STYLE_USER_MODIFY_READ_ONLY)
|
|
, mUserFocus(NS_STYLE_USER_FOCUS_NONE)
|
|
, mPointerEvents(NS_STYLE_POINTER_EVENTS_AUTO)
|
|
, mCursor(NS_STYLE_CURSOR_AUTO)
|
|
, mCursorArrayLength(0)
|
|
, mCursorArray(nullptr)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleUserInterface);
|
|
}
|
|
|
|
nsStyleUserInterface::nsStyleUserInterface(const nsStyleUserInterface& aSource)
|
|
: mUserInput(aSource.mUserInput)
|
|
, mUserModify(aSource.mUserModify)
|
|
, mUserFocus(aSource.mUserFocus)
|
|
, mPointerEvents(aSource.mPointerEvents)
|
|
, mCursor(aSource.mCursor)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleUserInterface);
|
|
CopyCursorArrayFrom(aSource);
|
|
}
|
|
|
|
nsStyleUserInterface::~nsStyleUserInterface()
|
|
{
|
|
MOZ_COUNT_DTOR(nsStyleUserInterface);
|
|
delete [] mCursorArray;
|
|
}
|
|
|
|
nsChangeHint nsStyleUserInterface::CalcDifference(const nsStyleUserInterface& aOther) const
|
|
{
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
if (mCursor != aOther.mCursor)
|
|
NS_UpdateHint(hint, nsChangeHint_UpdateCursor);
|
|
|
|
// We could do better. But it wouldn't be worth it, URL-specified cursors are
|
|
// rare.
|
|
if (mCursorArrayLength > 0 || aOther.mCursorArrayLength > 0)
|
|
NS_UpdateHint(hint, nsChangeHint_UpdateCursor);
|
|
|
|
if (mPointerEvents != aOther.mPointerEvents) {
|
|
// nsSVGPathGeometryFrame's mRect depends on stroke _and_ on the value
|
|
// of pointer-events. See nsSVGPathGeometryFrame::ReflowSVG's use of
|
|
// GetHitTestFlags. (Only a reflow, no visual change.)
|
|
hint |= nsChangeHint_NeedReflow |
|
|
nsChangeHint_NeedDirtyReflow; // XXX remove me: bug 876085
|
|
}
|
|
|
|
if (mUserModify != aOther.mUserModify)
|
|
NS_UpdateHint(hint, NS_STYLE_HINT_VISUAL);
|
|
|
|
if (mUserInput != aOther.mUserInput) {
|
|
if (NS_STYLE_USER_INPUT_NONE == mUserInput ||
|
|
NS_STYLE_USER_INPUT_NONE == aOther.mUserInput) {
|
|
NS_UpdateHint(hint, NS_STYLE_HINT_FRAMECHANGE);
|
|
} else {
|
|
NS_UpdateHint(hint, nsChangeHint_NeutralChange);
|
|
}
|
|
}
|
|
|
|
if (mUserFocus != aOther.mUserFocus) {
|
|
NS_UpdateHint(hint, nsChangeHint_NeutralChange);
|
|
}
|
|
|
|
return hint;
|
|
}
|
|
|
|
void
|
|
nsStyleUserInterface::CopyCursorArrayFrom(const nsStyleUserInterface& aSource)
|
|
{
|
|
mCursorArray = nullptr;
|
|
mCursorArrayLength = 0;
|
|
if (aSource.mCursorArrayLength) {
|
|
mCursorArray = new nsCursorImage[aSource.mCursorArrayLength];
|
|
if (mCursorArray) {
|
|
mCursorArrayLength = aSource.mCursorArrayLength;
|
|
for (uint32_t i = 0; i < mCursorArrayLength; ++i)
|
|
mCursorArray[i] = aSource.mCursorArray[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
//-----------------------
|
|
// nsStyleUIReset
|
|
//
|
|
|
|
nsStyleUIReset::nsStyleUIReset(StyleStructContext aContext)
|
|
: mUserSelect(NS_STYLE_USER_SELECT_AUTO)
|
|
, mForceBrokenImageIcon(0)
|
|
, mIMEMode(NS_STYLE_IME_MODE_AUTO)
|
|
, mWindowDragging(NS_STYLE_WINDOW_DRAGGING_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& aOther) const
|
|
{
|
|
// ignore mIMEMode
|
|
if (mForceBrokenImageIcon != aOther.mForceBrokenImageIcon)
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
if (mWindowShadow != aOther.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 != aOther.mUserSelect)
|
|
return NS_STYLE_HINT_VISUAL;
|
|
|
|
if (mWindowDragging != aOther.mWindowDragging) {
|
|
return nsChangeHint_SchedulePaint;
|
|
}
|
|
|
|
return NS_STYLE_HINT_NONE;
|
|
}
|
|
|
|
//-----------------------
|
|
// nsStyleVariables
|
|
//
|
|
|
|
nsStyleVariables::nsStyleVariables(StyleStructContext 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& aOther) const
|
|
{
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
//-----------------------
|
|
// nsStyleEffects
|
|
//
|
|
|
|
nsStyleEffects::nsStyleEffects(StyleStructContext 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& aOther) const
|
|
{
|
|
nsChangeHint hint = nsChangeHint(0);
|
|
|
|
if (!AreShadowArraysEqual(mBoxShadow, aOther.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 != aOther.mClipFlags) {
|
|
hint |= nsChangeHint_AllReflowHints |
|
|
nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (!mClip.IsEqualInterior(aOther.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 != aOther.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 && aOther.mOpacity == 1.0f) ||
|
|
(aOther.mOpacity >= 0.99f && aOther.mOpacity < 1.0f && mOpacity == 1.0f)) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
} else {
|
|
hint |= nsChangeHint_UpdateOpacityLayer;
|
|
if ((mOpacity == 1.0f) != (aOther.mOpacity == 1.0f)) {
|
|
hint |= nsChangeHint_UpdateUsesOpacity;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (HasFilters() != aOther.HasFilters()) {
|
|
// A change from/to being a containing block for position:fixed.
|
|
hint |= nsChangeHint_UpdateContainingBlock;
|
|
}
|
|
|
|
if (mFilters != aOther.mFilters) {
|
|
hint |= nsChangeHint_UpdateEffects |
|
|
nsChangeHint_RepaintFrame |
|
|
nsChangeHint_UpdateOverflow;
|
|
}
|
|
|
|
if (mMixBlendMode != aOther.mMixBlendMode) {
|
|
hint |= nsChangeHint_RepaintFrame;
|
|
}
|
|
|
|
if (!hint &&
|
|
!mClip.IsEqualEdges(aOther.mClip)) {
|
|
hint |= nsChangeHint_NeutralChange;
|
|
}
|
|
|
|
return hint;
|
|
}
|