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d381b4bca6
CLOSED TREE Backed out changeset d66c3f19a210 (bug 1235261) Backed out changeset 467d945426bb (bug 1235261) Backed out changeset 32b61df13142 (bug 1235261) Backed out changeset c50bb8ed4196 (bug 1235261) Backed out changeset 0ff0fa6fe81f (bug 1235261) Backed out changeset df70e89669da (bug 1235261) Backed out changeset 064969357fc9 (bug 1235261)
3532 lines
120 KiB
C++
3532 lines
120 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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#ifndef nsStyleStruct_h___
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#define nsStyleStruct_h___
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#include "mozilla/ArenaObjectID.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/CSSVariableValues.h"
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#include "mozilla/SheetType.h"
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#include "nsColor.h"
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#include "nsCoord.h"
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#include "nsMargin.h"
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#include "nsFont.h"
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#include "nsStyleCoord.h"
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#include "nsStyleConsts.h"
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#include "nsChangeHint.h"
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#include "nsPresContext.h"
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#include "nsCOMPtr.h"
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#include "nsCOMArray.h"
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#include "nsTArray.h"
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#include "nsCSSValue.h"
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#include "imgRequestProxy.h"
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#include "Orientation.h"
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#include "CounterStyleManager.h"
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class nsIFrame;
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class nsIURI;
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class nsStyleContext;
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class nsTextFrame;
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class imgIContainer;
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struct nsStyleVisibility;
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// Includes nsStyleStructID.
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#include "nsStyleStructFwd.h"
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// Bits for each struct.
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// NS_STYLE_INHERIT_BIT defined in nsStyleStructFwd.h
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#define NS_STYLE_INHERIT_MASK 0x000ffffff
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// Bits for inherited structs.
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#define NS_STYLE_INHERITED_STRUCT_MASK \
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((nsStyleStructID_size_t(1) << nsStyleStructID_Inherited_Count) - 1)
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// Bits for reset structs.
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#define NS_STYLE_RESET_STRUCT_MASK \
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(((nsStyleStructID_size_t(1) << nsStyleStructID_Reset_Count) - 1) \
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<< nsStyleStructID_Inherited_Count)
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// Additional bits for nsStyleContext's mBits:
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// See nsStyleContext::HasTextDecorationLines
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#define NS_STYLE_HAS_TEXT_DECORATION_LINES 0x001000000
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// See nsStyleContext::HasPseudoElementData.
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#define NS_STYLE_HAS_PSEUDO_ELEMENT_DATA 0x002000000
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// See nsStyleContext::RelevantLinkIsVisited
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#define NS_STYLE_RELEVANT_LINK_VISITED 0x004000000
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// See nsStyleContext::IsStyleIfVisited
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#define NS_STYLE_IS_STYLE_IF_VISITED 0x008000000
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// See nsStyleContext::HasChildThatUsesGrandancestorStyle
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#define NS_STYLE_CHILD_USES_GRANDANCESTOR_STYLE 0x010000000
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// See nsStyleContext::IsShared
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#define NS_STYLE_IS_SHARED 0x020000000
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// See nsStyleContext::AssertStructsNotUsedElsewhere
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// (This bit is currently only used in #ifdef DEBUG code.)
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#define NS_STYLE_IS_GOING_AWAY 0x040000000
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// See nsStyleContext::ShouldSuppressLineBreak
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#define NS_STYLE_SUPPRESS_LINEBREAK 0x080000000
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// See nsStyleContext::IsInDisplayNoneSubtree
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#define NS_STYLE_IN_DISPLAY_NONE_SUBTREE 0x100000000
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// See nsStyleContext::FindChildWithRules
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#define NS_STYLE_INELIGIBLE_FOR_SHARING 0x200000000
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// See nsStyleContext::HasChildThatUsesResetStyle
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#define NS_STYLE_HAS_CHILD_THAT_USES_RESET_STYLE 0x400000000
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// See nsStyleContext::GetPseudoEnum
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#define NS_STYLE_CONTEXT_TYPE_SHIFT 35
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// Additional bits for nsRuleNode's mDependentBits:
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#define NS_RULE_NODE_IS_ANIMATION_RULE 0x01000000
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#define NS_RULE_NODE_GC_MARK 0x02000000
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#define NS_RULE_NODE_USED_DIRECTLY 0x04000000
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#define NS_RULE_NODE_IS_IMPORTANT 0x08000000
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#define NS_RULE_NODE_LEVEL_MASK 0xf0000000
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#define NS_RULE_NODE_LEVEL_SHIFT 28
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// Additional bits for nsRuleNode's mNoneBits:
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#define NS_RULE_NODE_HAS_ANIMATION_DATA 0x80000000
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static_assert(int(mozilla::SheetType::Count) - 1 <=
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(NS_RULE_NODE_LEVEL_MASK >> NS_RULE_NODE_LEVEL_SHIFT),
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"NS_RULE_NODE_LEVEL_MASK cannot fit SheetType");
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static_assert(NS_RULE_NODE_IS_ANIMATION_RULE == (1 << nsStyleStructID_Length),
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"NS_RULE_NODE_IS_ANIMATION_RULE must not overlap the style struct bits.");
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// The lifetime of these objects is managed by the presshell's arena.
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struct nsStyleFont
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{
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nsStyleFont(const nsFont& aFont, nsPresContext *aPresContext);
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nsStyleFont(const nsStyleFont& aStyleFont);
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explicit nsStyleFont(nsPresContext *aPresContext);
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~nsStyleFont(void) {
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MOZ_COUNT_DTOR(nsStyleFont);
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}
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nsChangeHint CalcDifference(const nsStyleFont& aOther) const;
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static nsChangeHint MaxDifference() {
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return NS_CombineHint(NS_STYLE_HINT_REFLOW,
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nsChangeHint_NeutralChange);
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}
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static nsChangeHint DifferenceAlwaysHandledForDescendants() {
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// CalcDifference never returns the reflow hints that are sometimes
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// handled for descendants as hints not handled for descendants.
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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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/**
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* Return aSize multiplied by the current text zoom factor (in aPresContext).
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* aSize is allowed to be negative, but the caller is expected to deal with
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* negative results. The result is clamped to nscoord_MIN .. nscoord_MAX.
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*/
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static nscoord ZoomText(nsPresContext* aPresContext, nscoord aSize);
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/**
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* Return aSize divided by the current text zoom factor (in aPresContext).
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* aSize is allowed to be negative, but the caller is expected to deal with
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* negative results. The result is clamped to nscoord_MIN .. nscoord_MAX.
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*/
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static nscoord UnZoomText(nsPresContext* aPresContext, nscoord aSize);
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static already_AddRefed<nsIAtom> GetLanguage(nsPresContext* aPresContext);
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void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
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return aContext->PresShell()->
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AllocateByObjectID(mozilla::eArenaObjectID_nsStyleFont, sz);
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}
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void Destroy(nsPresContext* aContext);
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void EnableZoom(nsPresContext* aContext, bool aEnable);
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nsFont mFont; // [inherited]
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nscoord mSize; // [inherited] Our "computed size". Can be different
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// from mFont.size which is our "actual size" and is
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// enforced to be >= the user's preferred min-size.
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// mFont.size should be used for display purposes
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// while mSize is the value to return in
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// getComputedStyle() for example.
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uint8_t mGenericID; // [inherited] generic CSS font family, if any;
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// value is a kGenericFont_* constant, see nsFont.h.
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// MathML scriptlevel support
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int8_t mScriptLevel; // [inherited]
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// MathML mathvariant support
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uint8_t mMathVariant; // [inherited]
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// MathML displaystyle support
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uint8_t mMathDisplay; // [inherited]
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// allow different min font-size for certain cases
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uint8_t mMinFontSizeRatio; // [inherited] percent * 100
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// was mLanguage set based on a lang attribute in the document?
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bool mExplicitLanguage; // [inherited]
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// should calls to ZoomText() and UnZoomText() be made to the font
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// size on this nsStyleFont?
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bool mAllowZoom; // [inherited]
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// The value mSize would have had if scriptminsize had never been applied
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nscoord mScriptUnconstrainedSize;
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nscoord mScriptMinSize; // [inherited] length
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float mScriptSizeMultiplier; // [inherited]
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nsCOMPtr<nsIAtom> mLanguage; // [inherited]
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};
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struct nsStyleGradientStop
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{
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nsStyleCoord mLocation; // percent, coord, calc, none
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nscolor mColor;
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bool mIsInterpolationHint;
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// Use ==/!= on nsStyleGradient instead of on the gradient stop.
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bool operator==(const nsStyleGradientStop&) const = delete;
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bool operator!=(const nsStyleGradientStop&) const = delete;
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};
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class nsStyleGradient final
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{
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public:
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nsStyleGradient();
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uint8_t mShape; // NS_STYLE_GRADIENT_SHAPE_*
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uint8_t mSize; // NS_STYLE_GRADIENT_SIZE_*;
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// not used (must be FARTHEST_CORNER) for linear shape
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bool mRepeating;
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bool mLegacySyntax;
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nsStyleCoord mBgPosX; // percent, coord, calc, none
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nsStyleCoord mBgPosY; // percent, coord, calc, none
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nsStyleCoord mAngle; // none, angle
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nsStyleCoord mRadiusX; // percent, coord, calc, none
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nsStyleCoord mRadiusY; // percent, coord, calc, none
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// stops are in the order specified in the stylesheet
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nsTArray<nsStyleGradientStop> mStops;
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bool operator==(const nsStyleGradient& aOther) const;
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bool operator!=(const nsStyleGradient& aOther) const {
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return !(*this == aOther);
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}
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bool IsOpaque();
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bool HasCalc();
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uint32_t Hash(PLDHashNumber aHash);
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NS_INLINE_DECL_REFCOUNTING(nsStyleGradient)
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private:
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// Private destructor, to discourage deletion outside of Release():
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~nsStyleGradient() {}
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nsStyleGradient(const nsStyleGradient& aOther) = delete;
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nsStyleGradient& operator=(const nsStyleGradient& aOther) = delete;
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};
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enum nsStyleImageType {
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eStyleImageType_Null,
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eStyleImageType_Image,
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eStyleImageType_Gradient,
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eStyleImageType_Element
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};
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/**
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* Represents a paintable image of one of the following types.
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* (1) A real image loaded from an external source.
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* (2) A CSS linear or radial gradient.
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* (3) An element within a document, or an <img>, <video>, or <canvas> element
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* not in a document.
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* (*) Optionally a crop rect can be set to paint a partial (rectangular)
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* region of an image. (Currently, this feature is only supported with an
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* image of type (1)).
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*/
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struct nsStyleImage
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{
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nsStyleImage();
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~nsStyleImage();
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nsStyleImage(const nsStyleImage& aOther);
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nsStyleImage& operator=(const nsStyleImage& aOther);
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void SetNull();
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void SetImageData(imgRequestProxy* aImage);
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void TrackImage(nsPresContext* aContext);
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void UntrackImage(nsPresContext* aContext);
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void SetGradientData(nsStyleGradient* aGradient);
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void SetElementId(const char16_t* aElementId);
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void SetCropRect(nsStyleSides* aCropRect);
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nsStyleImageType GetType() const {
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return mType;
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}
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imgRequestProxy* GetImageData() const {
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MOZ_ASSERT(mType == eStyleImageType_Image, "Data is not an image!");
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MOZ_ASSERT(mImageTracked,
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"Should be tracking any image we're going to use!");
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return mImage;
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}
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nsStyleGradient* GetGradientData() const {
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NS_ASSERTION(mType == eStyleImageType_Gradient, "Data is not a gradient!");
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return mGradient;
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}
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const char16_t* GetElementId() const {
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NS_ASSERTION(mType == eStyleImageType_Element, "Data is not an element!");
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return mElementId;
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}
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nsStyleSides* GetCropRect() const {
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NS_ASSERTION(mType == eStyleImageType_Image,
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"Only image data can have a crop rect");
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return mCropRect;
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}
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/**
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* Compute the actual crop rect in pixels, using the source image bounds.
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* The computation involves converting percentage unit to pixel unit and
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* clamping each side value to fit in the source image bounds.
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* @param aActualCropRect the computed actual crop rect.
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* @param aIsEntireImage true iff |aActualCropRect| is identical to the
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* source image bounds.
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* @return true iff |aActualCropRect| holds a meaningful value.
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*/
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bool ComputeActualCropRect(nsIntRect& aActualCropRect,
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bool* aIsEntireImage = nullptr) const;
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/**
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* Starts the decoding of a image.
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*/
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nsresult StartDecoding() const;
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/**
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* @return true if the item is definitely opaque --- i.e., paints every
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* pixel within its bounds opaquely, and the bounds contains at least a pixel.
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*/
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bool IsOpaque() const;
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/**
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* @return true if this image is fully loaded, and its size is calculated;
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* always returns true if |mType| is |eStyleImageType_Gradient| or
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* |eStyleImageType_Element|.
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*/
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bool IsComplete() const;
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/**
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* @return true if this image is loaded without error;
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* always returns true if |mType| is |eStyleImageType_Gradient| or
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* |eStyleImageType_Element|.
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*/
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bool IsLoaded() const;
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/**
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* @return true if it is 100% confident that this image contains no pixel
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* to draw.
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*/
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bool IsEmpty() const {
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// There are some other cases when the image will be empty, for example
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// when the crop rect is empty. However, checking the emptiness of crop
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// rect is non-trivial since each side value can be specified with
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// percentage unit, which can not be evaluated until the source image size
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// is available. Therefore, we currently postpone the evaluation of crop
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// rect until the actual rendering time --- alternatively until GetOpaqueRegion()
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// is called.
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return mType == eStyleImageType_Null;
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}
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bool operator==(const nsStyleImage& aOther) const;
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bool operator!=(const nsStyleImage& aOther) const {
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return !(*this == aOther);
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}
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bool ImageDataEquals(const nsStyleImage& aOther) const
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{
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return GetType() == eStyleImageType_Image &&
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aOther.GetType() == eStyleImageType_Image &&
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GetImageData() == aOther.GetImageData();
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}
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// These methods are used for the caller to caches the sub images created
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// during a border-image paint operation
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inline void SetSubImage(uint8_t aIndex, imgIContainer* aSubImage) const;
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inline imgIContainer* GetSubImage(uint8_t aIndex) const;
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private:
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void DoCopy(const nsStyleImage& aOther);
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// Cache for border-image painting.
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nsCOMArray<imgIContainer> mSubImages;
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nsStyleImageType mType;
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union {
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imgRequestProxy* mImage;
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nsStyleGradient* mGradient;
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char16_t* mElementId;
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};
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// This is _currently_ used only in conjunction with eStyleImageType_Image.
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nsAutoPtr<nsStyleSides> mCropRect;
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#ifdef DEBUG
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bool mImageTracked;
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#endif
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};
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struct nsStyleColor
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{
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explicit nsStyleColor(nsPresContext* aPresContext);
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nsStyleColor(const nsStyleColor& aOther);
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~nsStyleColor(void) {
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MOZ_COUNT_DTOR(nsStyleColor);
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}
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nsChangeHint CalcDifference(const nsStyleColor& aOther) const;
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static nsChangeHint MaxDifference() {
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return nsChangeHint_RepaintFrame;
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}
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static nsChangeHint DifferenceAlwaysHandledForDescendants() {
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// CalcDifference never returns the reflow hints that are sometimes
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// handled for descendants at all.
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return nsChangeHint(0);
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}
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void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
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return aContext->PresShell()->
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AllocateByObjectID(mozilla::eArenaObjectID_nsStyleColor, sz);
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}
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void Destroy(nsPresContext* aContext) {
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this->~nsStyleColor();
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aContext->PresShell()->
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FreeByObjectID(mozilla::eArenaObjectID_nsStyleColor, this);
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}
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// Don't add ANY members to this struct! We can achieve caching in the rule
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// tree (rather than the style tree) by letting color stay by itself! -dwh
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nscolor mColor; // [inherited]
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};
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struct nsStyleImageLayers {
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nsStyleImageLayers();
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nsStyleImageLayers(const nsStyleImageLayers &aSource);
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~nsStyleImageLayers() {
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MOZ_COUNT_DTOR(nsStyleImageLayers);
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}
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// Indices into kBackgroundLayerTable and kMaskLayerTable
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enum {
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shorthand = 0,
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color,
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image,
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repeat,
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position,
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clip,
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origin,
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size,
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attachment,
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maskMode,
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composite
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};
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struct Position;
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friend struct Position;
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struct Position {
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typedef nsStyleCoord::CalcValue PositionCoord;
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PositionCoord mXPosition, mYPosition;
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// Initialize nothing
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Position() {}
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bool IsInitialValue() const;
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// Sets both mXPosition and mYPosition to the given percent value for the
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// initial property-value (e.g. 0.0f for "0% 0%", or 0.5f for "50% 50%")
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void SetInitialPercentValues(float aPercentVal);
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// Sets both mXPosition and mYPosition to 0 (app units) for the
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// initial property-value as a length with no percentage component.
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void SetInitialZeroValues();
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// True if the effective background image position described by this depends
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// on the size of the corresponding frame.
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bool DependsOnPositioningAreaSize() const {
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return mXPosition.mPercent != 0.0f || mYPosition.mPercent != 0.0f;
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}
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bool operator==(const Position& aOther) const {
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return mXPosition == aOther.mXPosition &&
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mYPosition == aOther.mYPosition;
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}
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bool operator!=(const Position& aOther) const {
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return !(*this == aOther);
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}
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};
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struct Size;
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friend struct Size;
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struct Size {
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struct Dimension : public nsStyleCoord::CalcValue {
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nscoord ResolveLengthPercentage(nscoord aAvailable) const {
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double d = double(mPercent) * double(aAvailable) + double(mLength);
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if (d < 0.0)
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return 0;
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return NSToCoordRoundWithClamp(float(d));
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}
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};
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Dimension mWidth, mHeight;
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bool IsInitialValue() const {
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return mWidthType == eAuto && mHeightType == eAuto;
|
|
}
|
|
|
|
nscoord ResolveWidthLengthPercentage(const nsSize& aBgPositioningArea) const {
|
|
MOZ_ASSERT(mWidthType == eLengthPercentage,
|
|
"resolving non-length/percent dimension!");
|
|
return mWidth.ResolveLengthPercentage(aBgPositioningArea.width);
|
|
}
|
|
|
|
nscoord ResolveHeightLengthPercentage(const nsSize& aBgPositioningArea) const {
|
|
MOZ_ASSERT(mHeightType == eLengthPercentage,
|
|
"resolving non-length/percent dimension!");
|
|
return mHeight.ResolveLengthPercentage(aBgPositioningArea.height);
|
|
}
|
|
|
|
// Except for eLengthPercentage, Dimension types which might change
|
|
// how a layer is painted when the corresponding frame's dimensions
|
|
// change *must* precede all dimension types which are agnostic to
|
|
// frame size; see DependsOnDependsOnPositioningAreaSizeSize.
|
|
enum DimensionType {
|
|
// If one of mWidth and mHeight is eContain or eCover, then both are.
|
|
// NOTE: eContain and eCover *must* be equal to NS_STYLE_BG_SIZE_CONTAIN
|
|
// and NS_STYLE_BG_SIZE_COVER (in kBackgroundSizeKTable).
|
|
eContain, eCover,
|
|
|
|
eAuto,
|
|
eLengthPercentage,
|
|
eDimensionType_COUNT
|
|
};
|
|
uint8_t mWidthType, mHeightType;
|
|
|
|
// True if the effective image size described by this depends on the size of
|
|
// the corresponding frame, when aImage (which must not have null type) is
|
|
// the background image.
|
|
bool DependsOnPositioningAreaSize(const nsStyleImage& aImage) const;
|
|
|
|
// Initialize nothing
|
|
Size() {}
|
|
|
|
// Initialize to initial values
|
|
void SetInitialValues();
|
|
|
|
bool operator==(const Size& aOther) const;
|
|
bool operator!=(const Size& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
};
|
|
|
|
struct Repeat;
|
|
friend struct Repeat;
|
|
struct Repeat {
|
|
uint8_t mXRepeat, mYRepeat;
|
|
|
|
// Initialize nothing
|
|
Repeat() {}
|
|
|
|
bool IsInitialValue() const {
|
|
return mXRepeat == NS_STYLE_IMAGELAYER_REPEAT_REPEAT &&
|
|
mYRepeat == NS_STYLE_IMAGELAYER_REPEAT_REPEAT;
|
|
}
|
|
|
|
// Initialize to initial values
|
|
void SetInitialValues();
|
|
|
|
bool operator==(const Repeat& aOther) const {
|
|
return mXRepeat == aOther.mXRepeat &&
|
|
mYRepeat == aOther.mYRepeat;
|
|
}
|
|
bool operator!=(const Repeat& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
};
|
|
|
|
struct Layer;
|
|
friend struct Layer;
|
|
struct Layer {
|
|
nsStyleImage mImage; // [reset]
|
|
nsCOMPtr<nsIURI> mSourceURI; // [reset]
|
|
// mask-only property
|
|
// This property is used for mask layer only.
|
|
// For a background layer, it should always
|
|
// be the initial value, which is nullptr.
|
|
// Store mask-image URI so that we can resolve
|
|
// SVG mask path later.
|
|
Position mPosition; // [reset] See nsStyleConsts.h
|
|
Size mSize; // [reset]
|
|
uint8_t mClip; // [reset] See nsStyleConsts.h
|
|
uint8_t mOrigin; // [reset] See nsStyleConsts.h
|
|
uint8_t mAttachment; // [reset] See nsStyleConsts.h
|
|
// background-only property
|
|
// This property is used for background layer
|
|
// only. For a mask layer, it should always
|
|
// be the initial value, which is
|
|
// NS_STYLE_IMAGELAYER_ATTACHMENT_SCROLL.
|
|
uint8_t mBlendMode; // [reset] See nsStyleConsts.h
|
|
// background-only property
|
|
// This property is used for background layer
|
|
// only. For a mask layer, it should always
|
|
// be the initial value, which is
|
|
// NS_STYLE_BLEND_NORMAL.
|
|
uint8_t mComposite; // [reset] See nsStyleConsts.h
|
|
// mask-only property
|
|
// This property is used for mask layer only.
|
|
// For a background layer, it should always
|
|
// be the initial value, which is
|
|
// NS_STYLE_COMPOSITE_MODE_ADD.
|
|
uint8_t mMaskMode; // [reset] See nsStyleConsts.h
|
|
// mask-only property
|
|
// This property is used for mask layer only.
|
|
// For a background layer, it should always
|
|
// be the initial value, which is
|
|
// NS_STYLE_MASK_MODE_AUTO.
|
|
Repeat mRepeat; // [reset] See nsStyleConsts.h
|
|
|
|
// Initializes only mImage
|
|
Layer();
|
|
~Layer();
|
|
|
|
// Register/unregister images with the document. We do this only
|
|
// after the dust has settled in ComputeBackgroundData.
|
|
void TrackImages(nsPresContext* aContext) {
|
|
if (mImage.GetType() == eStyleImageType_Image)
|
|
mImage.TrackImage(aContext);
|
|
}
|
|
void UntrackImages(nsPresContext* aContext) {
|
|
if (mImage.GetType() == eStyleImageType_Image)
|
|
mImage.UntrackImage(aContext);
|
|
}
|
|
|
|
// True if the rendering of this layer might change when the size
|
|
// of the background positioning area changes. This is true for any
|
|
// non-solid-color background whose position or size depends on
|
|
// the size of the positioning area. It's also true for SVG images
|
|
// whose root <svg> node has a viewBox.
|
|
bool RenderingMightDependOnPositioningAreaSizeChange() const;
|
|
|
|
// Compute the change hint required by changes in just this layer.
|
|
nsChangeHint CalcDifference(const Layer& aOther) const;
|
|
|
|
// An equality operator that compares the images using URL-equality
|
|
// rather than pointer-equality.
|
|
bool operator==(const Layer& aOther) const;
|
|
bool operator!=(const Layer& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
};
|
|
|
|
// The (positive) number of computed values of each property, since
|
|
// the lengths of the lists are independent.
|
|
uint32_t mAttachmentCount,
|
|
mClipCount,
|
|
mOriginCount,
|
|
mRepeatCount,
|
|
mPositionCount,
|
|
mImageCount,
|
|
mSizeCount,
|
|
mMaskModeCount,
|
|
mBlendModeCount,
|
|
mCompositeCount;
|
|
|
|
// Layers are stored in an array, matching the top-to-bottom order in
|
|
// which they are specified in CSS. The number of layers to be used
|
|
// should come from the background-image property. We create
|
|
// additional |Layer| objects for *any* property, not just
|
|
// background-image. This means that the bottommost layer that
|
|
// callers in layout care about (which is also the one whose
|
|
// background-clip applies to the background-color) may not be last
|
|
// layer. In layers below the bottom layer, properties will be
|
|
// uninitialized unless their count, above, indicates that they are
|
|
// present.
|
|
nsAutoTArray<Layer, 1> mLayers;
|
|
|
|
const Layer& BottomLayer() const { return mLayers[mImageCount - 1]; }
|
|
|
|
void TrackImages(nsPresContext* aContext) {
|
|
for (uint32_t i = 0; i < mImageCount; ++i) {
|
|
mLayers[i].TrackImages(aContext);
|
|
}
|
|
}
|
|
void UntrackImages(nsPresContext* aContext) {
|
|
for (uint32_t i = 0; i < mImageCount; ++i)
|
|
mLayers[i].UntrackImages(aContext);
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleImageLayers& aOther) const;
|
|
|
|
bool HasLayerWithImage() const;
|
|
|
|
static const nsCSSProperty kBackgroundLayerTable[];
|
|
static const nsCSSProperty kMaskLayerTable[];
|
|
|
|
#define NS_FOR_VISIBLE_IMAGE_LAYERS_BACK_TO_FRONT(var_, layers_) \
|
|
for (uint32_t var_ = (layers_).mImageCount; var_-- != 0; )
|
|
#define NS_FOR_VISIBLE_IMAGE_LAYERS_BACK_TO_FRONT_WITH_RANGE(var_, layers_, start_, count_) \
|
|
NS_ASSERTION((int32_t)(start_) >= 0 && (uint32_t)(start_) < (layers_).mImageCount, "Invalid layer start!"); \
|
|
NS_ASSERTION((count_) > 0 && (count_) <= (start_) + 1, "Invalid layer range!"); \
|
|
for (uint32_t var_ = (start_) + 1; var_-- != (uint32_t)((start_) + 1 - (count_)); )
|
|
};
|
|
|
|
struct nsStyleBackground {
|
|
nsStyleBackground();
|
|
nsStyleBackground(const nsStyleBackground& aOther);
|
|
~nsStyleBackground();
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleBackground, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext);
|
|
|
|
nsChangeHint CalcDifference(const nsStyleBackground& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_UpdateEffects |
|
|
nsChangeHint_RepaintFrame |
|
|
nsChangeHint_SchedulePaint |
|
|
nsChangeHint_NeutralChange;
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants at all.
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
// True if this background is completely transparent.
|
|
bool IsTransparent() const;
|
|
|
|
// We have to take slower codepaths for fixed background attachment,
|
|
// but we don't want to do that when there's no image.
|
|
// Not inline because it uses an nsCOMPtr<imgIRequest>
|
|
// FIXME: Should be in nsStyleStructInlines.h.
|
|
bool HasFixedBackground() const;
|
|
|
|
const nsStyleImageLayers::Layer& BottomLayer() const { return mImage.BottomLayer(); }
|
|
|
|
nsStyleImageLayers mImage;
|
|
nscolor mBackgroundColor; // [reset]
|
|
};
|
|
|
|
// See https://bugzilla.mozilla.org/show_bug.cgi?id=271586#c43 for why
|
|
// this is hard to replace with 'currentColor'.
|
|
#define BORDER_COLOR_FOREGROUND 0x20
|
|
#define OUTLINE_COLOR_INITIAL 0x80
|
|
// FOREGROUND | INITIAL(OUTLINE)
|
|
#define BORDER_COLOR_SPECIAL 0xA0
|
|
#define BORDER_STYLE_MASK 0x1F
|
|
|
|
#define NS_SPACING_MARGIN 0
|
|
#define NS_SPACING_PADDING 1
|
|
#define NS_SPACING_BORDER 2
|
|
|
|
|
|
struct nsStyleMargin
|
|
{
|
|
nsStyleMargin(void);
|
|
nsStyleMargin(const nsStyleMargin& aMargin);
|
|
~nsStyleMargin(void) {
|
|
MOZ_COUNT_DTOR(nsStyleMargin);
|
|
}
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleMargin, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext);
|
|
|
|
void RecalcData();
|
|
nsChangeHint CalcDifference(const nsStyleMargin& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_NeedReflow |
|
|
nsChangeHint_ReflowChangesSizeOrPosition |
|
|
nsChangeHint_ClearAncestorIntrinsics;
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference can return all of the reflow hints sometimes not
|
|
// handled for descendants as hints not handled for descendants.
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
nsStyleSides mMargin; // [reset] coord, percent, calc, auto
|
|
|
|
bool IsWidthDependent() const { return !mHasCachedMargin; }
|
|
bool GetMargin(nsMargin& aMargin) const
|
|
{
|
|
if (mHasCachedMargin) {
|
|
aMargin = mCachedMargin;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
protected:
|
|
bool mHasCachedMargin;
|
|
nsMargin mCachedMargin;
|
|
};
|
|
|
|
|
|
struct nsStylePadding
|
|
{
|
|
nsStylePadding(void);
|
|
nsStylePadding(const nsStylePadding& aPadding);
|
|
~nsStylePadding(void) {
|
|
MOZ_COUNT_DTOR(nsStylePadding);
|
|
}
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStylePadding, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext);
|
|
|
|
void RecalcData();
|
|
nsChangeHint CalcDifference(const nsStylePadding& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_SubtractHint(NS_STYLE_HINT_REFLOW,
|
|
nsChangeHint_ClearDescendantIntrinsics);
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference can return nsChangeHint_ClearAncestorIntrinsics as
|
|
// a hint not handled for descendants. We could (and perhaps
|
|
// should) return nsChangeHint_NeedReflow and
|
|
// nsChangeHint_ReflowChangesSizeOrPosition as always handled for
|
|
// descendants, but since they're always returned in conjunction
|
|
// with nsChangeHint_ClearAncestorIntrinsics (which is not), it
|
|
// won't ever lead to any optimization in
|
|
// nsStyleContext::CalcStyleDifference.
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
nsStyleSides mPadding; // [reset] coord, percent, calc
|
|
|
|
bool IsWidthDependent() const { return !mHasCachedPadding; }
|
|
bool GetPadding(nsMargin& aPadding) const
|
|
{
|
|
if (mHasCachedPadding) {
|
|
aPadding = mCachedPadding;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
protected:
|
|
bool mHasCachedPadding;
|
|
nsMargin mCachedPadding;
|
|
};
|
|
|
|
struct nsBorderColors
|
|
{
|
|
nsBorderColors* mNext;
|
|
nscolor mColor;
|
|
|
|
nsBorderColors() : mNext(nullptr), mColor(NS_RGB(0,0,0)) {}
|
|
explicit nsBorderColors(const nscolor& aColor) : mNext(nullptr), mColor(aColor) {}
|
|
~nsBorderColors();
|
|
|
|
nsBorderColors* Clone() const { return Clone(true); }
|
|
|
|
static bool Equal(const nsBorderColors* c1,
|
|
const nsBorderColors* c2) {
|
|
if (c1 == c2)
|
|
return true;
|
|
while (c1 && c2) {
|
|
if (c1->mColor != c2->mColor)
|
|
return false;
|
|
c1 = c1->mNext;
|
|
c2 = c2->mNext;
|
|
}
|
|
// both should be nullptr if these are equal, otherwise one
|
|
// has more colors than another
|
|
return !c1 && !c2;
|
|
}
|
|
|
|
private:
|
|
nsBorderColors* Clone(bool aDeep) const;
|
|
};
|
|
|
|
struct nsCSSShadowItem
|
|
{
|
|
nscoord mXOffset;
|
|
nscoord mYOffset;
|
|
nscoord mRadius;
|
|
nscoord mSpread;
|
|
|
|
nscolor mColor;
|
|
bool mHasColor; // Whether mColor should be used
|
|
bool mInset;
|
|
|
|
nsCSSShadowItem() : mHasColor(false) {
|
|
MOZ_COUNT_CTOR(nsCSSShadowItem);
|
|
}
|
|
~nsCSSShadowItem() {
|
|
MOZ_COUNT_DTOR(nsCSSShadowItem);
|
|
}
|
|
|
|
bool operator==(const nsCSSShadowItem& aOther) const {
|
|
return (mXOffset == aOther.mXOffset &&
|
|
mYOffset == aOther.mYOffset &&
|
|
mRadius == aOther.mRadius &&
|
|
mHasColor == aOther.mHasColor &&
|
|
mSpread == aOther.mSpread &&
|
|
mInset == aOther.mInset &&
|
|
(!mHasColor || mColor == aOther.mColor));
|
|
}
|
|
bool operator!=(const nsCSSShadowItem& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
};
|
|
|
|
class nsCSSShadowArray final
|
|
{
|
|
public:
|
|
void* operator new(size_t aBaseSize, uint32_t aArrayLen) {
|
|
// We can allocate both this nsCSSShadowArray and the
|
|
// actual array in one allocation. The amount of memory to
|
|
// allocate is equal to the class's size + the number of bytes for all
|
|
// but the first array item (because aBaseSize includes one
|
|
// item, see the private declarations)
|
|
return ::operator new(aBaseSize +
|
|
(aArrayLen - 1) * sizeof(nsCSSShadowItem));
|
|
}
|
|
|
|
explicit nsCSSShadowArray(uint32_t aArrayLen) :
|
|
mLength(aArrayLen)
|
|
{
|
|
MOZ_COUNT_CTOR(nsCSSShadowArray);
|
|
for (uint32_t i = 1; i < mLength; ++i) {
|
|
// Make sure we call the constructors of each nsCSSShadowItem
|
|
// (the first one is called for us because we declared it under private)
|
|
new (&mArray[i]) nsCSSShadowItem();
|
|
}
|
|
}
|
|
|
|
private:
|
|
// Private destructor, to discourage deletion outside of Release():
|
|
~nsCSSShadowArray() {
|
|
MOZ_COUNT_DTOR(nsCSSShadowArray);
|
|
for (uint32_t i = 1; i < mLength; ++i) {
|
|
mArray[i].~nsCSSShadowItem();
|
|
}
|
|
}
|
|
|
|
public:
|
|
uint32_t Length() const { return mLength; }
|
|
nsCSSShadowItem* ShadowAt(uint32_t i) {
|
|
MOZ_ASSERT(i < mLength, "Accessing too high an index in the text shadow array!");
|
|
return &mArray[i];
|
|
}
|
|
const nsCSSShadowItem* ShadowAt(uint32_t i) const {
|
|
MOZ_ASSERT(i < mLength, "Accessing too high an index in the text shadow array!");
|
|
return &mArray[i];
|
|
}
|
|
|
|
bool HasShadowWithInset(bool aInset) {
|
|
for (uint32_t i = 0; i < mLength; ++i) {
|
|
if (mArray[i].mInset == aInset)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool operator==(const nsCSSShadowArray& aOther) const {
|
|
if (mLength != aOther.Length())
|
|
return false;
|
|
|
|
for (uint32_t i = 0; i < mLength; ++i) {
|
|
if (ShadowAt(i) != aOther.ShadowAt(i))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
NS_INLINE_DECL_REFCOUNTING(nsCSSShadowArray)
|
|
|
|
private:
|
|
uint32_t mLength;
|
|
nsCSSShadowItem mArray[1]; // This MUST be the last item
|
|
};
|
|
|
|
// Border widths are rounded to the nearest-below integer number of pixels,
|
|
// but values between zero and one device pixels are always rounded up to
|
|
// one device pixel.
|
|
#define NS_ROUND_BORDER_TO_PIXELS(l,tpp) \
|
|
((l) == 0) ? 0 : std::max((tpp), (l) / (tpp) * (tpp))
|
|
// Outline offset is rounded to the nearest integer number of pixels, but values
|
|
// between zero and one device pixels are always rounded up to one device pixel.
|
|
// Note that the offset can be negative.
|
|
#define NS_ROUND_OFFSET_TO_PIXELS(l,tpp) \
|
|
(((l) == 0) ? 0 : \
|
|
((l) > 0) ? std::max( (tpp), ((l) + ((tpp) / 2)) / (tpp) * (tpp)) : \
|
|
std::min(-(tpp), ((l) - ((tpp) / 2)) / (tpp) * (tpp)))
|
|
|
|
// Returns if the given border style type is visible or not
|
|
static bool IsVisibleBorderStyle(uint8_t aStyle)
|
|
{
|
|
return (aStyle != NS_STYLE_BORDER_STYLE_NONE &&
|
|
aStyle != NS_STYLE_BORDER_STYLE_HIDDEN);
|
|
}
|
|
|
|
struct nsStyleBorder
|
|
{
|
|
explicit nsStyleBorder(nsPresContext* aContext);
|
|
nsStyleBorder(const nsStyleBorder& aBorder);
|
|
~nsStyleBorder();
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleBorder, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext);
|
|
|
|
nsChangeHint CalcDifference(const nsStyleBorder& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_STYLE_HINT_REFLOW |
|
|
nsChangeHint_UpdateOverflow |
|
|
nsChangeHint_BorderStyleNoneChange |
|
|
nsChangeHint_NeutralChange;
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants as hints not handled for descendants.
|
|
return nsChangeHint_NeedReflow |
|
|
nsChangeHint_ReflowChangesSizeOrPosition |
|
|
nsChangeHint_ClearAncestorIntrinsics;
|
|
}
|
|
|
|
void EnsureBorderColors() {
|
|
if (!mBorderColors) {
|
|
mBorderColors = new nsBorderColors*[4];
|
|
if (mBorderColors)
|
|
for (int32_t i = 0; i < 4; i++)
|
|
mBorderColors[i] = nullptr;
|
|
}
|
|
}
|
|
|
|
void ClearBorderColors(mozilla::css::Side aSide) {
|
|
if (mBorderColors && mBorderColors[aSide]) {
|
|
delete mBorderColors[aSide];
|
|
mBorderColors[aSide] = nullptr;
|
|
}
|
|
}
|
|
|
|
// Return whether aStyle is a visible style. Invisible styles cause
|
|
// the relevant computed border width to be 0.
|
|
// Note that this does *not* consider the effects of 'border-image':
|
|
// if border-style is none, but there is a loaded border image,
|
|
// HasVisibleStyle will be false even though there *is* a border.
|
|
bool HasVisibleStyle(mozilla::css::Side aSide) const
|
|
{
|
|
return IsVisibleBorderStyle(GetBorderStyle(aSide));
|
|
}
|
|
|
|
// aBorderWidth is in twips
|
|
void SetBorderWidth(mozilla::css::Side aSide, nscoord aBorderWidth)
|
|
{
|
|
nscoord roundedWidth =
|
|
NS_ROUND_BORDER_TO_PIXELS(aBorderWidth, mTwipsPerPixel);
|
|
mBorder.Side(aSide) = roundedWidth;
|
|
if (HasVisibleStyle(aSide))
|
|
mComputedBorder.Side(aSide) = roundedWidth;
|
|
}
|
|
|
|
// Get the computed border (plus rounding). This does consider the
|
|
// effects of 'border-style: none', but does not consider
|
|
// 'border-image'.
|
|
const nsMargin& GetComputedBorder() const
|
|
{
|
|
return mComputedBorder;
|
|
}
|
|
|
|
bool HasBorder() const
|
|
{
|
|
return mComputedBorder != nsMargin(0,0,0,0) || !mBorderImageSource.IsEmpty();
|
|
}
|
|
|
|
// Get the actual border width for a particular side, in appunits. Note that
|
|
// this is zero if and only if there is no border to be painted for this
|
|
// side. That is, this value takes into account the border style and the
|
|
// value is rounded to the nearest device pixel by NS_ROUND_BORDER_TO_PIXELS.
|
|
nscoord GetComputedBorderWidth(mozilla::css::Side aSide) const
|
|
{
|
|
return GetComputedBorder().Side(aSide);
|
|
}
|
|
|
|
uint8_t GetBorderStyle(mozilla::css::Side aSide) const
|
|
{
|
|
NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
|
|
return (mBorderStyle[aSide] & BORDER_STYLE_MASK);
|
|
}
|
|
|
|
void SetBorderStyle(mozilla::css::Side aSide, uint8_t aStyle)
|
|
{
|
|
NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
|
|
mBorderStyle[aSide] &= ~BORDER_STYLE_MASK;
|
|
mBorderStyle[aSide] |= (aStyle & BORDER_STYLE_MASK);
|
|
mComputedBorder.Side(aSide) =
|
|
(HasVisibleStyle(aSide) ? mBorder.Side(aSide) : 0);
|
|
}
|
|
|
|
inline bool IsBorderImageLoaded() const
|
|
{
|
|
return mBorderImageSource.IsLoaded();
|
|
}
|
|
|
|
void GetBorderColor(mozilla::css::Side aSide, nscolor& aColor,
|
|
bool& aForeground) const
|
|
{
|
|
aForeground = false;
|
|
NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
|
|
if ((mBorderStyle[aSide] & BORDER_COLOR_SPECIAL) == 0)
|
|
aColor = mBorderColor[aSide];
|
|
else if (mBorderStyle[aSide] & BORDER_COLOR_FOREGROUND)
|
|
aForeground = true;
|
|
else
|
|
NS_NOTREACHED("OUTLINE_COLOR_INITIAL should not be set here");
|
|
}
|
|
|
|
void SetBorderColor(mozilla::css::Side aSide, nscolor aColor)
|
|
{
|
|
NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
|
|
mBorderColor[aSide] = aColor;
|
|
mBorderStyle[aSide] &= ~BORDER_COLOR_SPECIAL;
|
|
}
|
|
|
|
void TrackImage(nsPresContext* aContext)
|
|
{
|
|
if (mBorderImageSource.GetType() == eStyleImageType_Image) {
|
|
mBorderImageSource.TrackImage(aContext);
|
|
}
|
|
}
|
|
void UntrackImage(nsPresContext* aContext)
|
|
{
|
|
if (mBorderImageSource.GetType() == eStyleImageType_Image) {
|
|
mBorderImageSource.UntrackImage(aContext);
|
|
}
|
|
}
|
|
|
|
nsMargin GetImageOutset() const;
|
|
|
|
void GetCompositeColors(int32_t aIndex, nsBorderColors** aColors) const
|
|
{
|
|
if (!mBorderColors)
|
|
*aColors = nullptr;
|
|
else
|
|
*aColors = mBorderColors[aIndex];
|
|
}
|
|
|
|
void AppendBorderColor(int32_t aIndex, nscolor aColor)
|
|
{
|
|
NS_ASSERTION(aIndex >= 0 && aIndex <= 3, "bad side for composite border color");
|
|
nsBorderColors* colorEntry = new nsBorderColors(aColor);
|
|
if (!mBorderColors[aIndex])
|
|
mBorderColors[aIndex] = colorEntry;
|
|
else {
|
|
nsBorderColors* last = mBorderColors[aIndex];
|
|
while (last->mNext)
|
|
last = last->mNext;
|
|
last->mNext = colorEntry;
|
|
}
|
|
mBorderStyle[aIndex] &= ~BORDER_COLOR_SPECIAL;
|
|
}
|
|
|
|
void SetBorderToForeground(mozilla::css::Side aSide)
|
|
{
|
|
NS_ASSERTION(aSide <= NS_SIDE_LEFT, "bad side");
|
|
mBorderStyle[aSide] &= ~BORDER_COLOR_SPECIAL;
|
|
mBorderStyle[aSide] |= BORDER_COLOR_FOREGROUND;
|
|
}
|
|
|
|
imgIRequest* GetBorderImageRequest() const
|
|
{
|
|
if (mBorderImageSource.GetType() == eStyleImageType_Image) {
|
|
return mBorderImageSource.GetImageData();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
public:
|
|
nsBorderColors** mBorderColors; // [reset] composite (stripe) colors
|
|
RefPtr<nsCSSShadowArray> mBoxShadow; // [reset] nullptr for 'none'
|
|
|
|
public:
|
|
nsStyleCorners mBorderRadius; // [reset] coord, percent
|
|
nsStyleImage mBorderImageSource; // [reset]
|
|
nsStyleSides mBorderImageSlice; // [reset] factor, percent
|
|
nsStyleSides mBorderImageWidth; // [reset] length, factor, percent, auto
|
|
nsStyleSides mBorderImageOutset; // [reset] length, factor
|
|
|
|
uint8_t mBorderImageFill; // [reset]
|
|
uint8_t mBorderImageRepeatH; // [reset] see nsStyleConsts.h
|
|
uint8_t mBorderImageRepeatV; // [reset]
|
|
uint8_t mFloatEdge; // [reset]
|
|
uint8_t mBoxDecorationBreak; // [reset] see nsStyleConsts.h
|
|
|
|
protected:
|
|
// mComputedBorder holds the CSS2.1 computed border-width values.
|
|
// In particular, these widths take into account the border-style
|
|
// for the relevant side, and the values are rounded to the nearest
|
|
// device pixel (which is not part of the definition of computed
|
|
// values). The presence or absence of a border-image does not
|
|
// affect border-width values.
|
|
nsMargin mComputedBorder;
|
|
|
|
// mBorder holds the nscoord values for the border widths as they
|
|
// would be if all the border-style values were visible (not hidden
|
|
// or none). This member exists so that when we create structs
|
|
// using the copy constructor during style resolution the new
|
|
// structs will know what the specified values of the border were in
|
|
// case they have more specific rules setting the border style.
|
|
//
|
|
// Note that this isn't quite the CSS specified value, since this
|
|
// has had the enumerated border widths converted to lengths, and
|
|
// all lengths converted to twips. But it's not quite the computed
|
|
// value either. The values are rounded to the nearest device pixel.
|
|
nsMargin mBorder;
|
|
|
|
uint8_t mBorderStyle[4]; // [reset] See nsStyleConsts.h
|
|
nscolor mBorderColor[4]; // [reset] the colors to use for a simple
|
|
// border. not used for -moz-border-colors
|
|
private:
|
|
nscoord mTwipsPerPixel;
|
|
|
|
nsStyleBorder& operator=(const nsStyleBorder& aOther) = delete;
|
|
};
|
|
|
|
|
|
struct nsStyleOutline
|
|
{
|
|
explicit nsStyleOutline(nsPresContext* aPresContext);
|
|
nsStyleOutline(const nsStyleOutline& aOutline);
|
|
~nsStyleOutline(void) {
|
|
MOZ_COUNT_DTOR(nsStyleOutline);
|
|
}
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleOutline, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleOutline();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleOutline, this);
|
|
}
|
|
|
|
void RecalcData(nsPresContext* aContext);
|
|
nsChangeHint CalcDifference(const nsStyleOutline& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_CombineHint(NS_CombineHint(nsChangeHint_UpdateOverflow,
|
|
nsChangeHint_SchedulePaint),
|
|
NS_CombineHint(nsChangeHint_RepaintFrame,
|
|
nsChangeHint_NeutralChange));
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants at all.
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
nsStyleCorners mOutlineRadius; // [reset] coord, percent, calc
|
|
|
|
// Note that this is a specified value. You can get the actual values
|
|
// with GetOutlineWidth. You cannot get the computed value directly.
|
|
nsStyleCoord mOutlineWidth; // [reset] coord, enum (see nsStyleConsts.h)
|
|
nscoord mOutlineOffset; // [reset]
|
|
|
|
bool GetOutlineWidth(nscoord& aWidth) const
|
|
{
|
|
if (mHasCachedOutline) {
|
|
aWidth = mCachedOutlineWidth;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
uint8_t GetOutlineStyle(void) const
|
|
{
|
|
return (mOutlineStyle & BORDER_STYLE_MASK);
|
|
}
|
|
|
|
void SetOutlineStyle(uint8_t aStyle)
|
|
{
|
|
mOutlineStyle &= ~BORDER_STYLE_MASK;
|
|
mOutlineStyle |= (aStyle & BORDER_STYLE_MASK);
|
|
}
|
|
|
|
// false means initial value
|
|
bool GetOutlineColor(nscolor& aColor) const
|
|
{
|
|
if ((mOutlineStyle & BORDER_COLOR_SPECIAL) == 0) {
|
|
aColor = mOutlineColor;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void SetOutlineColor(nscolor aColor)
|
|
{
|
|
mOutlineColor = aColor;
|
|
mOutlineStyle &= ~BORDER_COLOR_SPECIAL;
|
|
}
|
|
|
|
void SetOutlineInitialColor()
|
|
{
|
|
mOutlineStyle |= OUTLINE_COLOR_INITIAL;
|
|
}
|
|
|
|
bool GetOutlineInitialColor() const
|
|
{
|
|
return !!(mOutlineStyle & OUTLINE_COLOR_INITIAL);
|
|
}
|
|
|
|
protected:
|
|
// This value is the actual value, so it's rounded to the nearest device
|
|
// pixel.
|
|
nscoord mCachedOutlineWidth;
|
|
|
|
nscolor mOutlineColor; // [reset]
|
|
|
|
bool mHasCachedOutline;
|
|
uint8_t mOutlineStyle; // [reset] See nsStyleConsts.h
|
|
|
|
nscoord mTwipsPerPixel;
|
|
};
|
|
|
|
|
|
struct nsStyleList
|
|
{
|
|
explicit nsStyleList(nsPresContext* aPresContext);
|
|
nsStyleList(const nsStyleList& aStyleList);
|
|
~nsStyleList(void);
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleList, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleList();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleList, this);
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleList& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_CombineHint(NS_STYLE_HINT_FRAMECHANGE,
|
|
nsChangeHint_NeutralChange);
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants as hints not handled for descendants.
|
|
return nsChangeHint_NeedReflow |
|
|
nsChangeHint_ReflowChangesSizeOrPosition |
|
|
nsChangeHint_ClearAncestorIntrinsics;
|
|
}
|
|
|
|
imgRequestProxy* GetListStyleImage() const { return mListStyleImage; }
|
|
void SetListStyleImage(imgRequestProxy* aReq)
|
|
{
|
|
if (mListStyleImage)
|
|
mListStyleImage->UnlockImage();
|
|
mListStyleImage = aReq;
|
|
if (mListStyleImage)
|
|
mListStyleImage->LockImage();
|
|
}
|
|
|
|
void GetListStyleType(nsSubstring& aType) const { aType = mListStyleType; }
|
|
mozilla::CounterStyle* GetCounterStyle() const
|
|
{
|
|
return mCounterStyle.get();
|
|
}
|
|
void SetListStyleType(const nsSubstring& aType,
|
|
mozilla::CounterStyle* aStyle)
|
|
{
|
|
mListStyleType = aType;
|
|
mCounterStyle = aStyle;
|
|
}
|
|
void SetListStyleType(const nsSubstring& aType,
|
|
nsPresContext* aPresContext)
|
|
{
|
|
SetListStyleType(aType, aPresContext->
|
|
CounterStyleManager()->BuildCounterStyle(aType));
|
|
}
|
|
|
|
uint8_t mListStylePosition; // [inherited]
|
|
private:
|
|
nsString mListStyleType; // [inherited]
|
|
RefPtr<mozilla::CounterStyle> mCounterStyle; // [inherited]
|
|
RefPtr<imgRequestProxy> mListStyleImage; // [inherited]
|
|
nsStyleList& operator=(const nsStyleList& aOther) = delete;
|
|
public:
|
|
nsRect mImageRegion; // [inherited] the rect to use within an image
|
|
};
|
|
|
|
struct nsStyleGridLine
|
|
{
|
|
// http://dev.w3.org/csswg/css-grid/#typedef-grid-line
|
|
// XXXmats we could optimize memory size here
|
|
bool mHasSpan;
|
|
int32_t mInteger; // 0 means not provided
|
|
nsString mLineName; // Empty string means not provided.
|
|
|
|
// mInteger is clamped to this range:
|
|
static const int32_t kMinLine;
|
|
static const int32_t kMaxLine;
|
|
|
|
nsStyleGridLine()
|
|
: mHasSpan(false)
|
|
, mInteger(0)
|
|
// mLineName get its default constructor, the empty string
|
|
{
|
|
}
|
|
|
|
nsStyleGridLine(const nsStyleGridLine& aOther)
|
|
{
|
|
(*this) = aOther;
|
|
}
|
|
|
|
void operator=(const nsStyleGridLine& aOther)
|
|
{
|
|
mHasSpan = aOther.mHasSpan;
|
|
mInteger = aOther.mInteger;
|
|
mLineName = aOther.mLineName;
|
|
}
|
|
|
|
bool operator!=(const nsStyleGridLine& aOther) const
|
|
{
|
|
return mHasSpan != aOther.mHasSpan ||
|
|
mInteger != aOther.mInteger ||
|
|
mLineName != aOther.mLineName;
|
|
}
|
|
|
|
void SetToInteger(uint32_t value)
|
|
{
|
|
mHasSpan = false;
|
|
mInteger = value;
|
|
mLineName.Truncate();
|
|
}
|
|
|
|
void SetAuto()
|
|
{
|
|
mHasSpan = false;
|
|
mInteger = 0;
|
|
mLineName.Truncate();
|
|
}
|
|
|
|
bool IsAuto() const
|
|
{
|
|
bool haveInitialValues = mInteger == 0 && mLineName.IsEmpty();
|
|
MOZ_ASSERT(!(haveInitialValues && mHasSpan),
|
|
"should not have 'span' when other components are "
|
|
"at their initial values");
|
|
return haveInitialValues;
|
|
}
|
|
};
|
|
|
|
// Computed value of the grid-template-columns or grid-template-rows property
|
|
// (but *not* grid-template-areas.)
|
|
// http://dev.w3.org/csswg/css-grid/#track-sizing
|
|
//
|
|
// This represents either:
|
|
// * none:
|
|
// mIsSubgrid is false, all three arrays are empty
|
|
// * <track-list>:
|
|
// mIsSubgrid is false,
|
|
// mMinTrackSizingFunctions and mMaxTrackSizingFunctions
|
|
// are of identical non-zero size,
|
|
// and mLineNameLists is one element longer than that.
|
|
// (Delimiting N columns requires N+1 lines:
|
|
// one before each track, plus one at the very end.)
|
|
//
|
|
// An omitted <line-names> is still represented in mLineNameLists,
|
|
// as an empty sub-array.
|
|
//
|
|
// A <track-size> specified as a single <track-breadth> is represented
|
|
// as identical min and max sizing functions.
|
|
//
|
|
// The units for nsStyleCoord are:
|
|
// * eStyleUnit_Percent represents a <percentage>
|
|
// * eStyleUnit_FlexFraction represents a <flex> flexible fraction
|
|
// * eStyleUnit_Coord represents a <length>
|
|
// * eStyleUnit_Enumerated represents min-content or max-content
|
|
// * subgrid <line-name-list>?:
|
|
// mIsSubgrid is true,
|
|
// mLineNameLists may or may not be empty,
|
|
// mMinTrackSizingFunctions and mMaxTrackSizingFunctions are empty.
|
|
//
|
|
// If mRepeatAutoIndex != -1 then that index is an <auto-repeat> and
|
|
// mIsAutoFill == true means it's an 'auto-fill', otherwise 'auto-fit'.
|
|
// mRepeatAutoLineNameListBefore is the list of line names before the track
|
|
// size, mRepeatAutoLineNameListAfter the names after. (They are empty
|
|
// when there is no <auto-repeat> track, i.e. when mRepeatAutoIndex == -1).
|
|
// When mIsSubgrid is true, mRepeatAutoLineNameListBefore contains the line
|
|
// names and mRepeatAutoLineNameListAfter is empty.
|
|
struct nsStyleGridTemplate
|
|
{
|
|
nsTArray<nsTArray<nsString>> mLineNameLists;
|
|
nsTArray<nsStyleCoord> mMinTrackSizingFunctions;
|
|
nsTArray<nsStyleCoord> mMaxTrackSizingFunctions;
|
|
nsTArray<nsString> mRepeatAutoLineNameListBefore;
|
|
nsTArray<nsString> mRepeatAutoLineNameListAfter;
|
|
int16_t mRepeatAutoIndex; // -1 or the track index for an auto-fill/fit track
|
|
bool mIsAutoFill : 1;
|
|
bool mIsSubgrid : 1;
|
|
|
|
nsStyleGridTemplate()
|
|
: mRepeatAutoIndex(-1)
|
|
, mIsAutoFill(false)
|
|
, mIsSubgrid(false)
|
|
{
|
|
}
|
|
|
|
inline bool operator!=(const nsStyleGridTemplate& aOther) const {
|
|
return
|
|
mIsSubgrid != aOther.mIsSubgrid ||
|
|
mLineNameLists != aOther.mLineNameLists ||
|
|
mMinTrackSizingFunctions != aOther.mMinTrackSizingFunctions ||
|
|
mMaxTrackSizingFunctions != aOther.mMaxTrackSizingFunctions ||
|
|
mIsAutoFill != aOther.mIsAutoFill ||
|
|
mRepeatAutoIndex != aOther.mRepeatAutoIndex ||
|
|
mRepeatAutoLineNameListBefore != aOther.mRepeatAutoLineNameListBefore ||
|
|
mRepeatAutoLineNameListAfter != aOther.mRepeatAutoLineNameListAfter;
|
|
}
|
|
|
|
bool HasRepeatAuto() const {
|
|
return mRepeatAutoIndex != -1;
|
|
}
|
|
|
|
bool IsRepeatAutoIndex(uint32_t aIndex) const {
|
|
MOZ_ASSERT(aIndex < uint32_t(2*nsStyleGridLine::kMaxLine));
|
|
return int32_t(aIndex) == mRepeatAutoIndex;
|
|
}
|
|
};
|
|
|
|
struct nsStylePosition
|
|
{
|
|
nsStylePosition(void);
|
|
nsStylePosition(const nsStylePosition& aOther);
|
|
~nsStylePosition(void);
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStylePosition, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStylePosition();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStylePosition, this);
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStylePosition& aOther,
|
|
const nsStyleVisibility* aOldStyleVisibility) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_CombineHint(NS_STYLE_HINT_REFLOW,
|
|
nsChangeHint(nsChangeHint_NeutralChange |
|
|
nsChangeHint_RecomputePosition |
|
|
nsChangeHint_UpdateParentOverflow |
|
|
nsChangeHint_UpdateComputedBSize));
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference can return all of the reflow hints that are
|
|
// sometimes handled for descendants as hints not handled for
|
|
// descendants.
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
// XXXdholbert nsStyleImageLayers::Position should probably be moved to a
|
|
// different scope, since we're now using it in multiple style structs.
|
|
typedef nsStyleImageLayers::Position Position;
|
|
|
|
/**
|
|
* Return the computed value for 'align-content'.
|
|
*/
|
|
uint16_t ComputedAlignContent() const { return mAlignContent; }
|
|
|
|
/**
|
|
* Return the computed value for 'align-items'.
|
|
*/
|
|
uint8_t ComputedAlignItems() const { return mAlignItems; }
|
|
|
|
/**
|
|
* Return the computed value for 'align-self' given our parent StyleContext
|
|
* aParent (or null for the root).
|
|
*/
|
|
uint8_t ComputedAlignSelf(nsStyleContext* aParent) const;
|
|
|
|
/**
|
|
* Return the computed value for 'justify-content'.
|
|
*/
|
|
uint16_t ComputedJustifyContent() const { return mJustifyContent; }
|
|
|
|
/**
|
|
* Return the computed value for 'justify-items' given our parent StyleContext
|
|
* aParent (or null for the root).
|
|
*/
|
|
uint8_t ComputedJustifyItems(nsStyleContext* aParent) const;
|
|
|
|
/**
|
|
* Return the computed value for 'justify-self' given our parent StyleContext
|
|
* aParent (or null for the root).
|
|
*/
|
|
uint8_t ComputedJustifySelf(nsStyleContext* aParent) const;
|
|
|
|
Position mObjectPosition; // [reset]
|
|
nsStyleSides mOffset; // [reset] coord, percent, calc, auto
|
|
nsStyleCoord mWidth; // [reset] coord, percent, enum, calc, auto
|
|
nsStyleCoord mMinWidth; // [reset] coord, percent, enum, calc
|
|
nsStyleCoord mMaxWidth; // [reset] coord, percent, enum, calc, none
|
|
nsStyleCoord mHeight; // [reset] coord, percent, calc, auto
|
|
nsStyleCoord mMinHeight; // [reset] coord, percent, calc
|
|
nsStyleCoord mMaxHeight; // [reset] coord, percent, calc, none
|
|
nsStyleCoord mFlexBasis; // [reset] coord, percent, enum, calc, auto
|
|
nsStyleCoord mGridAutoColumnsMin; // [reset] coord, percent, enum, calc, flex
|
|
nsStyleCoord mGridAutoColumnsMax; // [reset] coord, percent, enum, calc, flex
|
|
nsStyleCoord mGridAutoRowsMin; // [reset] coord, percent, enum, calc, flex
|
|
nsStyleCoord mGridAutoRowsMax; // [reset] coord, percent, enum, calc, flex
|
|
uint8_t mGridAutoFlow; // [reset] enumerated. See nsStyleConsts.h
|
|
mozilla::StyleBoxSizing mBoxSizing; // [reset] see nsStyleConsts.h
|
|
private:
|
|
friend class nsRuleNode;
|
|
|
|
uint16_t mAlignContent; // [reset] fallback value in the high byte
|
|
uint8_t mAlignItems; // [reset] see nsStyleConsts.h
|
|
uint8_t mAlignSelf; // [reset] see nsStyleConsts.h
|
|
uint16_t mJustifyContent; // [reset] fallback value in the high byte
|
|
uint8_t mJustifyItems; // [reset] see nsStyleConsts.h
|
|
uint8_t mJustifySelf; // [reset] see nsStyleConsts.h
|
|
public:
|
|
uint8_t mFlexDirection; // [reset] see nsStyleConsts.h
|
|
uint8_t mFlexWrap; // [reset] see nsStyleConsts.h
|
|
uint8_t mObjectFit; // [reset] see nsStyleConsts.h
|
|
int32_t mOrder; // [reset] integer
|
|
float mFlexGrow; // [reset] float
|
|
float mFlexShrink; // [reset] float
|
|
nsStyleCoord mZIndex; // [reset] integer, auto
|
|
nsStyleGridTemplate mGridTemplateColumns;
|
|
nsStyleGridTemplate mGridTemplateRows;
|
|
|
|
// nullptr for 'none'
|
|
RefPtr<mozilla::css::GridTemplateAreasValue> mGridTemplateAreas;
|
|
|
|
nsStyleGridLine mGridColumnStart;
|
|
nsStyleGridLine mGridColumnEnd;
|
|
nsStyleGridLine mGridRowStart;
|
|
nsStyleGridLine mGridRowEnd;
|
|
nscoord mGridColumnGap; // [reset] coord, calc
|
|
nscoord mGridRowGap; // [reset] coord, calc
|
|
|
|
// FIXME: Logical-coordinate equivalents to these WidthDepends... and
|
|
// HeightDepends... methods have been introduced (see below); we probably
|
|
// want to work towards removing the physical methods, and using the logical
|
|
// ones in all cases.
|
|
|
|
bool WidthDependsOnContainer() const
|
|
{
|
|
return mWidth.GetUnit() == eStyleUnit_Auto ||
|
|
WidthCoordDependsOnContainer(mWidth);
|
|
}
|
|
|
|
// NOTE: For a flex item, "min-width:auto" is supposed to behave like
|
|
// "min-content", which does depend on the container, so you might think we'd
|
|
// need a special case for "flex item && min-width:auto" here. However,
|
|
// we don't actually need that special-case code, because flex items are
|
|
// explicitly supposed to *ignore* their min-width (i.e. behave like it's 0)
|
|
// until the flex container explicitly considers it. So -- since the flex
|
|
// container doesn't rely on this method, we don't need to worry about
|
|
// special behavior for flex items' "min-width:auto" values here.
|
|
bool MinWidthDependsOnContainer() const
|
|
{ return WidthCoordDependsOnContainer(mMinWidth); }
|
|
bool MaxWidthDependsOnContainer() const
|
|
{ return WidthCoordDependsOnContainer(mMaxWidth); }
|
|
|
|
// Note that these functions count 'auto' as depending on the
|
|
// container since that's the case for absolutely positioned elements.
|
|
// However, some callers do not care about this case and should check
|
|
// for it, since it is the most common case.
|
|
// FIXME: We should probably change the assumption to be the other way
|
|
// around.
|
|
// Consider this as part of moving to the logical-coordinate APIs.
|
|
bool HeightDependsOnContainer() const
|
|
{
|
|
return mHeight.GetUnit() == eStyleUnit_Auto || // CSS 2.1, 10.6.4, item (5)
|
|
HeightCoordDependsOnContainer(mHeight);
|
|
}
|
|
|
|
// NOTE: The comment above MinWidthDependsOnContainer about flex items
|
|
// applies here, too.
|
|
bool MinHeightDependsOnContainer() const
|
|
{ return HeightCoordDependsOnContainer(mMinHeight); }
|
|
bool MaxHeightDependsOnContainer() const
|
|
{ return HeightCoordDependsOnContainer(mMaxHeight); }
|
|
|
|
bool OffsetHasPercent(mozilla::css::Side aSide) const
|
|
{
|
|
return mOffset.Get(aSide).HasPercent();
|
|
}
|
|
|
|
// Logical-coordinate accessors for width and height properties,
|
|
// given a WritingMode value. The definitions of these methods are
|
|
// found in WritingModes.h (after the WritingMode class is fully
|
|
// declared).
|
|
inline nsStyleCoord& ISize(mozilla::WritingMode aWM);
|
|
inline nsStyleCoord& MinISize(mozilla::WritingMode aWM);
|
|
inline nsStyleCoord& MaxISize(mozilla::WritingMode aWM);
|
|
inline nsStyleCoord& BSize(mozilla::WritingMode aWM);
|
|
inline nsStyleCoord& MinBSize(mozilla::WritingMode aWM);
|
|
inline nsStyleCoord& MaxBSize(mozilla::WritingMode aWM);
|
|
inline const nsStyleCoord& ISize(mozilla::WritingMode aWM) const;
|
|
inline const nsStyleCoord& MinISize(mozilla::WritingMode aWM) const;
|
|
inline const nsStyleCoord& MaxISize(mozilla::WritingMode aWM) const;
|
|
inline const nsStyleCoord& BSize(mozilla::WritingMode aWM) const;
|
|
inline const nsStyleCoord& MinBSize(mozilla::WritingMode aWM) const;
|
|
inline const nsStyleCoord& MaxBSize(mozilla::WritingMode aWM) const;
|
|
inline bool ISizeDependsOnContainer(mozilla::WritingMode aWM) const;
|
|
inline bool MinISizeDependsOnContainer(mozilla::WritingMode aWM) const;
|
|
inline bool MaxISizeDependsOnContainer(mozilla::WritingMode aWM) const;
|
|
inline bool BSizeDependsOnContainer(mozilla::WritingMode aWM) const;
|
|
inline bool MinBSizeDependsOnContainer(mozilla::WritingMode aWM) const;
|
|
inline bool MaxBSizeDependsOnContainer(mozilla::WritingMode aWM) const;
|
|
|
|
private:
|
|
static bool WidthCoordDependsOnContainer(const nsStyleCoord &aCoord);
|
|
static bool HeightCoordDependsOnContainer(const nsStyleCoord &aCoord)
|
|
{ return aCoord.HasPercent(); }
|
|
};
|
|
|
|
struct nsStyleTextOverflowSide
|
|
{
|
|
nsStyleTextOverflowSide() : mType(NS_STYLE_TEXT_OVERFLOW_CLIP) {}
|
|
|
|
bool operator==(const nsStyleTextOverflowSide& aOther) const {
|
|
return mType == aOther.mType &&
|
|
(mType != NS_STYLE_TEXT_OVERFLOW_STRING ||
|
|
mString == aOther.mString);
|
|
}
|
|
bool operator!=(const nsStyleTextOverflowSide& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
nsString mString;
|
|
uint8_t mType;
|
|
};
|
|
|
|
struct nsStyleTextOverflow
|
|
{
|
|
nsStyleTextOverflow() : mLogicalDirections(true) {}
|
|
bool operator==(const nsStyleTextOverflow& aOther) const {
|
|
return mLeft == aOther.mLeft && mRight == aOther.mRight;
|
|
}
|
|
bool operator!=(const nsStyleTextOverflow& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
// Returns the value to apply on the left side.
|
|
const nsStyleTextOverflowSide& GetLeft(uint8_t aDirection) const {
|
|
NS_ASSERTION(aDirection == NS_STYLE_DIRECTION_LTR ||
|
|
aDirection == NS_STYLE_DIRECTION_RTL, "bad direction");
|
|
return !mLogicalDirections || aDirection == NS_STYLE_DIRECTION_LTR ?
|
|
mLeft : mRight;
|
|
}
|
|
|
|
// Returns the value to apply on the right side.
|
|
const nsStyleTextOverflowSide& GetRight(uint8_t aDirection) const {
|
|
NS_ASSERTION(aDirection == NS_STYLE_DIRECTION_LTR ||
|
|
aDirection == NS_STYLE_DIRECTION_RTL, "bad direction");
|
|
return !mLogicalDirections || aDirection == NS_STYLE_DIRECTION_LTR ?
|
|
mRight : mLeft;
|
|
}
|
|
|
|
// Returns the first value that was specified.
|
|
const nsStyleTextOverflowSide* GetFirstValue() const {
|
|
return mLogicalDirections ? &mRight : &mLeft;
|
|
}
|
|
|
|
// Returns the second value, or null if there was only one value specified.
|
|
const nsStyleTextOverflowSide* GetSecondValue() const {
|
|
return mLogicalDirections ? nullptr : &mRight;
|
|
}
|
|
|
|
nsStyleTextOverflowSide mLeft; // start side when mLogicalDirections is true
|
|
nsStyleTextOverflowSide mRight; // end side when mLogicalDirections is true
|
|
bool mLogicalDirections; // true when only one value was specified
|
|
};
|
|
|
|
struct nsStyleTextReset
|
|
{
|
|
nsStyleTextReset(void);
|
|
nsStyleTextReset(const nsStyleTextReset& aOther);
|
|
~nsStyleTextReset(void);
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleTextReset, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleTextReset();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleTextReset, this);
|
|
}
|
|
|
|
uint8_t GetDecorationStyle() const
|
|
{
|
|
return (mTextDecorationStyle & BORDER_STYLE_MASK);
|
|
}
|
|
|
|
void SetDecorationStyle(uint8_t aStyle)
|
|
{
|
|
MOZ_ASSERT((aStyle & BORDER_STYLE_MASK) == aStyle,
|
|
"style doesn't fit");
|
|
mTextDecorationStyle &= ~BORDER_STYLE_MASK;
|
|
mTextDecorationStyle |= (aStyle & BORDER_STYLE_MASK);
|
|
}
|
|
|
|
void GetDecorationColor(nscolor& aColor, bool& aForeground) const
|
|
{
|
|
aForeground = false;
|
|
if ((mTextDecorationStyle & BORDER_COLOR_SPECIAL) == 0) {
|
|
aColor = mTextDecorationColor;
|
|
} else if (mTextDecorationStyle & BORDER_COLOR_FOREGROUND) {
|
|
aForeground = true;
|
|
} else {
|
|
NS_NOTREACHED("OUTLINE_COLOR_INITIAL should not be set here");
|
|
}
|
|
}
|
|
|
|
void SetDecorationColor(nscolor aColor)
|
|
{
|
|
mTextDecorationColor = aColor;
|
|
mTextDecorationStyle &= ~BORDER_COLOR_SPECIAL;
|
|
}
|
|
|
|
void SetDecorationColorToForeground()
|
|
{
|
|
mTextDecorationStyle &= ~BORDER_COLOR_SPECIAL;
|
|
mTextDecorationStyle |= BORDER_COLOR_FOREGROUND;
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleTextReset& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint(
|
|
NS_STYLE_HINT_REFLOW |
|
|
nsChangeHint_UpdateSubtreeOverflow);
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants as hints not handled for descendants.
|
|
return nsChangeHint_NeedReflow |
|
|
nsChangeHint_ReflowChangesSizeOrPosition |
|
|
nsChangeHint_ClearAncestorIntrinsics;
|
|
}
|
|
|
|
nsStyleCoord mVerticalAlign; // [reset] coord, percent, calc, enum (see nsStyleConsts.h)
|
|
nsStyleTextOverflow mTextOverflow; // [reset] enum, string
|
|
|
|
uint8_t mTextDecorationLine; // [reset] see nsStyleConsts.h
|
|
uint8_t mUnicodeBidi; // [reset] see nsStyleConsts.h
|
|
protected:
|
|
uint8_t mTextDecorationStyle; // [reset] see nsStyleConsts.h
|
|
|
|
nscolor mTextDecorationColor; // [reset] the colors to use for a decoration lines, not used at currentColor
|
|
};
|
|
|
|
struct nsStyleText
|
|
{
|
|
explicit nsStyleText(nsPresContext* aPresContext);
|
|
nsStyleText(const nsStyleText& aOther);
|
|
~nsStyleText(void);
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleText, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleText();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleText, this);
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleText& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_STYLE_HINT_FRAMECHANGE |
|
|
nsChangeHint_UpdateSubtreeOverflow |
|
|
nsChangeHint_NeutralChange;
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants as hints not handled for descendants.
|
|
return nsChangeHint_NeedReflow |
|
|
nsChangeHint_ReflowChangesSizeOrPosition |
|
|
nsChangeHint_ClearAncestorIntrinsics;
|
|
}
|
|
|
|
uint8_t mTextAlign; // [inherited] see nsStyleConsts.h
|
|
uint8_t mTextAlignLast; // [inherited] see nsStyleConsts.h
|
|
bool mTextAlignTrue : 1; // [inherited] see nsStyleConsts.h
|
|
bool mTextAlignLastTrue : 1; // [inherited] see nsStyleConsts.h
|
|
bool mTextEmphasisColorForeground : 1;// [inherited] whether text-emphasis-color is currentColor
|
|
uint8_t mTextTransform; // [inherited] see nsStyleConsts.h
|
|
uint8_t mWhiteSpace; // [inherited] see nsStyleConsts.h
|
|
uint8_t mWordBreak; // [inherited] see nsStyleConsts.h
|
|
uint8_t mWordWrap; // [inherited] see nsStyleConsts.h
|
|
uint8_t mHyphens; // [inherited] see nsStyleConsts.h
|
|
uint8_t mRubyAlign; // [inherited] see nsStyleConsts.h
|
|
uint8_t mRubyPosition; // [inherited] see nsStyleConsts.h
|
|
uint8_t mTextSizeAdjust; // [inherited] see nsStyleConsts.h
|
|
uint8_t mTextCombineUpright; // [inherited] see nsStyleConsts.h
|
|
uint8_t mControlCharacterVisibility; // [inherited] see nsStyleConsts.h
|
|
uint8_t mTextEmphasisPosition; // [inherited] see nsStyleConsts.h
|
|
uint8_t mTextEmphasisStyle; // [inherited] see nsStyleConsts.h
|
|
int32_t mTabSize; // [inherited] see nsStyleConsts.h
|
|
nscolor mTextEmphasisColor; // [inherited]
|
|
|
|
nsStyleCoord mWordSpacing; // [inherited] coord, percent, calc
|
|
nsStyleCoord mLetterSpacing; // [inherited] coord, normal
|
|
nsStyleCoord mLineHeight; // [inherited] coord, factor, normal
|
|
nsStyleCoord mTextIndent; // [inherited] coord, percent, calc
|
|
|
|
RefPtr<nsCSSShadowArray> mTextShadow; // [inherited] nullptr in case of a zero-length
|
|
|
|
nsString mTextEmphasisStyleString; // [inherited]
|
|
|
|
bool WhiteSpaceIsSignificant() const {
|
|
return mWhiteSpace == NS_STYLE_WHITESPACE_PRE ||
|
|
mWhiteSpace == NS_STYLE_WHITESPACE_PRE_WRAP ||
|
|
mWhiteSpace == NS_STYLE_WHITESPACE_PRE_SPACE;
|
|
}
|
|
|
|
bool NewlineIsSignificantStyle() const {
|
|
return mWhiteSpace == NS_STYLE_WHITESPACE_PRE ||
|
|
mWhiteSpace == NS_STYLE_WHITESPACE_PRE_WRAP ||
|
|
mWhiteSpace == NS_STYLE_WHITESPACE_PRE_LINE;
|
|
}
|
|
|
|
bool WhiteSpaceOrNewlineIsSignificant() const {
|
|
return mWhiteSpace == NS_STYLE_WHITESPACE_PRE ||
|
|
mWhiteSpace == NS_STYLE_WHITESPACE_PRE_WRAP ||
|
|
mWhiteSpace == NS_STYLE_WHITESPACE_PRE_LINE ||
|
|
mWhiteSpace == NS_STYLE_WHITESPACE_PRE_SPACE;
|
|
}
|
|
|
|
bool TabIsSignificant() const {
|
|
return mWhiteSpace == NS_STYLE_WHITESPACE_PRE ||
|
|
mWhiteSpace == NS_STYLE_WHITESPACE_PRE_WRAP;
|
|
}
|
|
|
|
bool WhiteSpaceCanWrapStyle() const {
|
|
return mWhiteSpace == NS_STYLE_WHITESPACE_NORMAL ||
|
|
mWhiteSpace == NS_STYLE_WHITESPACE_PRE_WRAP ||
|
|
mWhiteSpace == NS_STYLE_WHITESPACE_PRE_LINE;
|
|
}
|
|
|
|
bool WordCanWrapStyle() const {
|
|
return WhiteSpaceCanWrapStyle() &&
|
|
mWordWrap == NS_STYLE_WORDWRAP_BREAK_WORD;
|
|
}
|
|
|
|
bool HasTextEmphasis() const {
|
|
return !mTextEmphasisStyleString.IsEmpty();
|
|
}
|
|
|
|
// These are defined in nsStyleStructInlines.h.
|
|
inline bool HasTextShadow() const;
|
|
inline nsCSSShadowArray* GetTextShadow() const;
|
|
|
|
// The aContextFrame argument on each of these is the frame this
|
|
// style struct is for. If the frame is for SVG text or inside ruby,
|
|
// the return value will be massaged to be something that makes sense
|
|
// for those cases.
|
|
inline bool NewlineIsSignificant(const nsTextFrame* aContextFrame) const;
|
|
inline bool WhiteSpaceCanWrap(const nsIFrame* aContextFrame) const;
|
|
inline bool WordCanWrap(const nsIFrame* aContextFrame) const;
|
|
|
|
mozilla::LogicalSide TextEmphasisSide(mozilla::WritingMode aWM) const;
|
|
};
|
|
|
|
struct nsStyleImageOrientation
|
|
{
|
|
static nsStyleImageOrientation CreateAsAngleAndFlip(double aRadians,
|
|
bool aFlip) {
|
|
uint8_t orientation(0);
|
|
|
|
// Compute the final angle value, rounding to the closest quarter turn.
|
|
double roundedAngle = fmod(aRadians, 2 * M_PI);
|
|
if (roundedAngle < 0.25 * M_PI) orientation = ANGLE_0;
|
|
else if (roundedAngle < 0.75 * M_PI) orientation = ANGLE_90;
|
|
else if (roundedAngle < 1.25 * M_PI) orientation = ANGLE_180;
|
|
else if (roundedAngle < 1.75 * M_PI) orientation = ANGLE_270;
|
|
else orientation = ANGLE_0;
|
|
|
|
// Add a bit for 'flip' if needed.
|
|
if (aFlip)
|
|
orientation |= FLIP_MASK;
|
|
|
|
return nsStyleImageOrientation(orientation);
|
|
}
|
|
|
|
static nsStyleImageOrientation CreateAsFlip() {
|
|
return nsStyleImageOrientation(FLIP_MASK);
|
|
}
|
|
|
|
static nsStyleImageOrientation CreateAsFromImage() {
|
|
return nsStyleImageOrientation(FROM_IMAGE_MASK);
|
|
}
|
|
|
|
// The default constructor yields 0 degrees of rotation and no flip.
|
|
nsStyleImageOrientation() : mOrientation(0) { }
|
|
|
|
bool IsDefault() const { return mOrientation == 0; }
|
|
bool IsFlipped() const { return mOrientation & FLIP_MASK; }
|
|
bool IsFromImage() const { return mOrientation & FROM_IMAGE_MASK; }
|
|
bool SwapsWidthAndHeight() const {
|
|
uint8_t angle = mOrientation & ORIENTATION_MASK;
|
|
return (angle == ANGLE_90) || (angle == ANGLE_270);
|
|
}
|
|
|
|
mozilla::image::Angle Angle() const {
|
|
switch (mOrientation & ORIENTATION_MASK) {
|
|
case ANGLE_0: return mozilla::image::Angle::D0;
|
|
case ANGLE_90: return mozilla::image::Angle::D90;
|
|
case ANGLE_180: return mozilla::image::Angle::D180;
|
|
case ANGLE_270: return mozilla::image::Angle::D270;
|
|
default:
|
|
NS_NOTREACHED("Unexpected angle");
|
|
return mozilla::image::Angle::D0;
|
|
}
|
|
}
|
|
|
|
nsStyleCoord AngleAsCoord() const {
|
|
switch (mOrientation & ORIENTATION_MASK) {
|
|
case ANGLE_0: return nsStyleCoord(0.0f, eStyleUnit_Degree);
|
|
case ANGLE_90: return nsStyleCoord(90.0f, eStyleUnit_Degree);
|
|
case ANGLE_180: return nsStyleCoord(180.0f, eStyleUnit_Degree);
|
|
case ANGLE_270: return nsStyleCoord(270.0f, eStyleUnit_Degree);
|
|
default:
|
|
NS_NOTREACHED("Unexpected angle");
|
|
return nsStyleCoord();
|
|
}
|
|
}
|
|
|
|
bool operator==(const nsStyleImageOrientation& aOther) const {
|
|
return aOther.mOrientation == mOrientation;
|
|
}
|
|
|
|
bool operator!=(const nsStyleImageOrientation& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
protected:
|
|
enum Bits {
|
|
ORIENTATION_MASK = 0x1 | 0x2, // The bottom two bits are the angle.
|
|
FLIP_MASK = 0x4, // Whether the image should be flipped.
|
|
FROM_IMAGE_MASK = 0x8, // Whether the image's inherent orientation
|
|
}; // should be used.
|
|
|
|
enum Angles {
|
|
ANGLE_0 = 0,
|
|
ANGLE_90 = 1,
|
|
ANGLE_180 = 2,
|
|
ANGLE_270 = 3,
|
|
};
|
|
|
|
explicit nsStyleImageOrientation(uint8_t aOrientation)
|
|
: mOrientation(aOrientation)
|
|
{ }
|
|
|
|
uint8_t mOrientation;
|
|
};
|
|
|
|
struct nsStyleVisibility
|
|
{
|
|
explicit nsStyleVisibility(nsPresContext* aPresContext);
|
|
nsStyleVisibility(const nsStyleVisibility& aVisibility);
|
|
~nsStyleVisibility() {
|
|
MOZ_COUNT_DTOR(nsStyleVisibility);
|
|
}
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleVisibility, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleVisibility();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleVisibility, this);
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleVisibility& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants as hints not handled for descendants.
|
|
return nsChangeHint_NeedReflow |
|
|
nsChangeHint_ReflowChangesSizeOrPosition |
|
|
nsChangeHint_ClearAncestorIntrinsics;
|
|
}
|
|
|
|
nsStyleImageOrientation mImageOrientation; // [inherited]
|
|
uint8_t mDirection; // [inherited] see nsStyleConsts.h NS_STYLE_DIRECTION_*
|
|
uint8_t mVisible; // [inherited]
|
|
uint8_t mPointerEvents; // [inherited] see nsStyleConsts.h
|
|
uint8_t mWritingMode; // [inherited] see nsStyleConsts.h
|
|
uint8_t mTextOrientation; // [inherited] see nsStyleConsts.h
|
|
|
|
bool IsVisible() const {
|
|
return (mVisible == NS_STYLE_VISIBILITY_VISIBLE);
|
|
}
|
|
|
|
bool IsVisibleOrCollapsed() const {
|
|
return ((mVisible == NS_STYLE_VISIBILITY_VISIBLE) ||
|
|
(mVisible == NS_STYLE_VISIBILITY_COLLAPSE));
|
|
}
|
|
|
|
inline uint8_t GetEffectivePointerEvents(nsIFrame* aFrame) const;
|
|
};
|
|
|
|
struct nsTimingFunction
|
|
{
|
|
|
|
enum class Type {
|
|
Ease, // ease
|
|
Linear, // linear
|
|
EaseIn, // ease-in
|
|
EaseOut, // ease-out
|
|
EaseInOut, // ease-in-out
|
|
StepStart, // step-start and steps(..., start)
|
|
StepEnd, // step-end, steps(..., end) and steps(...)
|
|
CubicBezier, // cubic-bezier()
|
|
};
|
|
|
|
enum class StepSyntax {
|
|
Keyword, // step-start and step-end
|
|
FunctionalWithoutKeyword, // steps(...)
|
|
FunctionalWithStartKeyword, // steps(..., start)
|
|
FunctionalWithEndKeyword, // steps(..., end)
|
|
};
|
|
|
|
// Whether the timing function type is represented by a spline,
|
|
// and thus will have mFunc filled in.
|
|
static bool IsSplineType(Type aType)
|
|
{
|
|
return aType != Type::StepStart && aType != Type::StepEnd;
|
|
}
|
|
|
|
explicit nsTimingFunction(int32_t aTimingFunctionType
|
|
= NS_STYLE_TRANSITION_TIMING_FUNCTION_EASE)
|
|
{
|
|
AssignFromKeyword(aTimingFunctionType);
|
|
}
|
|
|
|
nsTimingFunction(float x1, float y1, float x2, float y2)
|
|
: mType(Type::CubicBezier)
|
|
{
|
|
mFunc.mX1 = x1;
|
|
mFunc.mY1 = y1;
|
|
mFunc.mX2 = x2;
|
|
mFunc.mY2 = y2;
|
|
}
|
|
|
|
enum class Keyword { Implicit, Explicit };
|
|
|
|
nsTimingFunction(Type aType, uint32_t aSteps, Keyword aKeyword)
|
|
: mType(aType)
|
|
{
|
|
MOZ_ASSERT(mType == Type::StepStart || mType == Type::StepEnd,
|
|
"wrong type");
|
|
mSteps = aSteps;
|
|
if (mType == Type::StepStart) {
|
|
MOZ_ASSERT(aKeyword == Keyword::Explicit,
|
|
"only StepEnd can have an implicit keyword");
|
|
mStepSyntax = StepSyntax::FunctionalWithStartKeyword;
|
|
} else {
|
|
mStepSyntax = aKeyword == Keyword::Explicit ?
|
|
StepSyntax::FunctionalWithEndKeyword :
|
|
StepSyntax::FunctionalWithoutKeyword;
|
|
}
|
|
}
|
|
|
|
nsTimingFunction(const nsTimingFunction& aOther)
|
|
{
|
|
*this = aOther;
|
|
}
|
|
|
|
Type mType;
|
|
union {
|
|
struct {
|
|
float mX1;
|
|
float mY1;
|
|
float mX2;
|
|
float mY2;
|
|
} mFunc;
|
|
struct {
|
|
StepSyntax mStepSyntax;
|
|
uint32_t mSteps;
|
|
};
|
|
};
|
|
|
|
nsTimingFunction&
|
|
operator=(const nsTimingFunction& aOther)
|
|
{
|
|
if (&aOther == this)
|
|
return *this;
|
|
|
|
mType = aOther.mType;
|
|
|
|
if (HasSpline()) {
|
|
mFunc.mX1 = aOther.mFunc.mX1;
|
|
mFunc.mY1 = aOther.mFunc.mY1;
|
|
mFunc.mX2 = aOther.mFunc.mX2;
|
|
mFunc.mY2 = aOther.mFunc.mY2;
|
|
} else {
|
|
mSteps = aOther.mSteps;
|
|
mStepSyntax = aOther.mStepSyntax;
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
bool operator==(const nsTimingFunction& aOther) const
|
|
{
|
|
if (mType != aOther.mType) {
|
|
return false;
|
|
}
|
|
if (HasSpline()) {
|
|
return mFunc.mX1 == aOther.mFunc.mX1 && mFunc.mY1 == aOther.mFunc.mY1 &&
|
|
mFunc.mX2 == aOther.mFunc.mX2 && mFunc.mY2 == aOther.mFunc.mY2;
|
|
}
|
|
return mSteps == aOther.mSteps &&
|
|
mStepSyntax == aOther.mStepSyntax;
|
|
}
|
|
|
|
bool operator!=(const nsTimingFunction& aOther) const
|
|
{
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
bool HasSpline() const { return IsSplineType(mType); }
|
|
|
|
private:
|
|
void AssignFromKeyword(int32_t aTimingFunctionType);
|
|
};
|
|
|
|
namespace mozilla {
|
|
|
|
struct StyleTransition
|
|
{
|
|
StyleTransition() { /* leaves uninitialized; see also SetInitialValues */ }
|
|
explicit StyleTransition(const StyleTransition& aCopy);
|
|
|
|
void SetInitialValues();
|
|
|
|
// Delay and Duration are in milliseconds
|
|
|
|
const nsTimingFunction& GetTimingFunction() const { return mTimingFunction; }
|
|
float GetDelay() const { return mDelay; }
|
|
float GetDuration() const { return mDuration; }
|
|
nsCSSProperty GetProperty() const { return mProperty; }
|
|
nsIAtom* GetUnknownProperty() const { return mUnknownProperty; }
|
|
|
|
float GetCombinedDuration() const {
|
|
// http://dev.w3.org/csswg/css-transitions/#combined-duration
|
|
return std::max(mDuration, 0.0f) + mDelay;
|
|
}
|
|
|
|
void SetTimingFunction(const nsTimingFunction& aTimingFunction)
|
|
{ mTimingFunction = aTimingFunction; }
|
|
void SetDelay(float aDelay) { mDelay = aDelay; }
|
|
void SetDuration(float aDuration) { mDuration = aDuration; }
|
|
void SetProperty(nsCSSProperty aProperty)
|
|
{
|
|
NS_ASSERTION(aProperty != eCSSProperty_UNKNOWN &&
|
|
aProperty != eCSSPropertyExtra_variable,
|
|
"invalid property");
|
|
mProperty = aProperty;
|
|
}
|
|
void SetUnknownProperty(nsCSSProperty aProperty,
|
|
const nsAString& aPropertyString);
|
|
void CopyPropertyFrom(const StyleTransition& aOther)
|
|
{
|
|
mProperty = aOther.mProperty;
|
|
mUnknownProperty = aOther.mUnknownProperty;
|
|
}
|
|
|
|
nsTimingFunction& TimingFunctionSlot() { return mTimingFunction; }
|
|
|
|
bool operator==(const StyleTransition& aOther) const;
|
|
bool operator!=(const StyleTransition& aOther) const
|
|
{ return !(*this == aOther); }
|
|
|
|
private:
|
|
nsTimingFunction mTimingFunction;
|
|
float mDuration;
|
|
float mDelay;
|
|
nsCSSProperty mProperty;
|
|
nsCOMPtr<nsIAtom> mUnknownProperty; // used when mProperty is
|
|
// eCSSProperty_UNKNOWN or
|
|
// eCSSPropertyExtra_variable
|
|
};
|
|
|
|
struct StyleAnimation
|
|
{
|
|
StyleAnimation() { /* leaves uninitialized; see also SetInitialValues */ }
|
|
explicit StyleAnimation(const StyleAnimation& aCopy);
|
|
|
|
void SetInitialValues();
|
|
|
|
// Delay and Duration are in milliseconds
|
|
|
|
const nsTimingFunction& GetTimingFunction() const { return mTimingFunction; }
|
|
float GetDelay() const { return mDelay; }
|
|
float GetDuration() const { return mDuration; }
|
|
const nsString& GetName() const { return mName; }
|
|
dom::PlaybackDirection GetDirection() const { return mDirection; }
|
|
dom::FillMode GetFillMode() const { return mFillMode; }
|
|
uint8_t GetPlayState() const { return mPlayState; }
|
|
float GetIterationCount() const { return mIterationCount; }
|
|
|
|
void SetTimingFunction(const nsTimingFunction& aTimingFunction)
|
|
{ mTimingFunction = aTimingFunction; }
|
|
void SetDelay(float aDelay) { mDelay = aDelay; }
|
|
void SetDuration(float aDuration) { mDuration = aDuration; }
|
|
void SetName(const nsSubstring& aName) { mName = aName; }
|
|
void SetDirection(dom::PlaybackDirection aDirection) { mDirection = aDirection; }
|
|
void SetFillMode(dom::FillMode aFillMode) { mFillMode = aFillMode; }
|
|
void SetPlayState(uint8_t aPlayState) { mPlayState = aPlayState; }
|
|
void SetIterationCount(float aIterationCount)
|
|
{ mIterationCount = aIterationCount; }
|
|
|
|
nsTimingFunction& TimingFunctionSlot() { return mTimingFunction; }
|
|
|
|
bool operator==(const StyleAnimation& aOther) const;
|
|
bool operator!=(const StyleAnimation& aOther) const
|
|
{ return !(*this == aOther); }
|
|
|
|
private:
|
|
nsTimingFunction mTimingFunction;
|
|
float mDuration;
|
|
float mDelay;
|
|
nsString mName; // empty string for 'none'
|
|
dom::PlaybackDirection mDirection;
|
|
dom::FillMode mFillMode;
|
|
uint8_t mPlayState;
|
|
float mIterationCount; // mozilla::PositiveInfinity<float>() means infinite
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
struct nsStyleDisplay
|
|
{
|
|
nsStyleDisplay();
|
|
nsStyleDisplay(const nsStyleDisplay& aOther);
|
|
~nsStyleDisplay() {
|
|
MOZ_COUNT_DTOR(nsStyleDisplay);
|
|
}
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleDisplay, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleDisplay();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleDisplay, this);
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleDisplay& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
// All the parts of FRAMECHANGE are present in CalcDifference.
|
|
return nsChangeHint(NS_STYLE_HINT_FRAMECHANGE |
|
|
nsChangeHint_UpdateOpacityLayer |
|
|
nsChangeHint_UpdateUsesOpacity |
|
|
nsChangeHint_UpdateTransformLayer |
|
|
nsChangeHint_UpdateOverflow |
|
|
nsChangeHint_UpdatePostTransformOverflow |
|
|
nsChangeHint_UpdateContainingBlock |
|
|
nsChangeHint_NeutralChange);
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference can return all of the reflow hints that are
|
|
// sometimes handled for descendants as hints not handled for
|
|
// descendants.
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
// XXXdholbert, XXXkgilbert nsStyleImageLayers::Position should probably be
|
|
// moved to a different scope, since we're now using it in multiple style
|
|
// structs.
|
|
typedef nsStyleImageLayers::Position Position;
|
|
|
|
// We guarantee that if mBinding is non-null, so are mBinding->GetURI() and
|
|
// mBinding->mOriginPrincipal.
|
|
RefPtr<mozilla::css::URLValue> mBinding; // [reset]
|
|
nsRect mClip; // [reset] offsets from upper-left border edge
|
|
float mOpacity; // [reset]
|
|
uint8_t mDisplay; // [reset] see nsStyleConsts.h NS_STYLE_DISPLAY_*
|
|
uint8_t mOriginalDisplay; // [reset] saved mDisplay for position:absolute/fixed
|
|
// and float:left/right; otherwise equal
|
|
// to mDisplay
|
|
uint8_t mContain; // [reset] see nsStyleConsts.h NS_STYLE_CONTAIN_*
|
|
uint8_t mAppearance; // [reset]
|
|
uint8_t mPosition; // [reset] see nsStyleConsts.h
|
|
uint8_t mFloats; // [reset] see nsStyleConsts.h NS_STYLE_FLOAT_*
|
|
uint8_t mOriginalFloats; // [reset] saved mFloats for position:absolute/fixed;
|
|
// otherwise equal to mFloats
|
|
uint8_t mBreakType; // [reset] see nsStyleConsts.h NS_STYLE_CLEAR_*
|
|
uint8_t mBreakInside; // [reset] NS_STYLE_PAGE_BREAK_AUTO/AVOID
|
|
bool mBreakBefore; // [reset]
|
|
bool mBreakAfter; // [reset]
|
|
uint8_t mOverflowX; // [reset] see nsStyleConsts.h
|
|
uint8_t mOverflowY; // [reset] see nsStyleConsts.h
|
|
uint8_t mOverflowClipBox; // [reset] see nsStyleConsts.h
|
|
uint8_t mResize; // [reset] see nsStyleConsts.h
|
|
uint8_t mClipFlags; // [reset] see nsStyleConsts.h
|
|
uint8_t mOrient; // [reset] see nsStyleConsts.h
|
|
uint8_t mMixBlendMode; // [reset] see nsStyleConsts.h
|
|
uint8_t mIsolation; // [reset] see nsStyleConsts.h
|
|
uint8_t mTopLayer; // [reset] see nsStyleConsts.h
|
|
uint8_t mWillChangeBitField; // [reset] see nsStyleConsts.h. Stores a
|
|
// bitfield representation of the properties
|
|
// that are frequently queried. This should
|
|
// match mWillChange. Also tracks if any of the
|
|
// properties in the will-change list require
|
|
// a stacking context.
|
|
nsAutoTArray<nsString, 1> mWillChange;
|
|
|
|
uint8_t mTouchAction; // [reset] see nsStyleConsts.h
|
|
uint8_t mScrollBehavior; // [reset] see nsStyleConsts.h NS_STYLE_SCROLL_BEHAVIOR_*
|
|
uint8_t mScrollSnapTypeX; // [reset] see nsStyleConsts.h NS_STYLE_SCROLL_SNAP_TYPE_*
|
|
uint8_t mScrollSnapTypeY; // [reset] see nsStyleConsts.h NS_STYLE_SCROLL_SNAP_TYPE_*
|
|
nsStyleCoord mScrollSnapPointsX; // [reset]
|
|
nsStyleCoord mScrollSnapPointsY; // [reset]
|
|
Position mScrollSnapDestination; // [reset]
|
|
nsTArray<Position> mScrollSnapCoordinate; // [reset]
|
|
|
|
// mSpecifiedTransform is the list of transform functions as
|
|
// specified, or null to indicate there is no transform. (inherit or
|
|
// initial are replaced by an actual list of transform functions, or
|
|
// null, as appropriate.)
|
|
uint8_t mBackfaceVisibility;
|
|
uint8_t mTransformStyle;
|
|
uint8_t mTransformBox; // [reset] see nsStyleConsts.h
|
|
RefPtr<nsCSSValueSharedList> mSpecifiedTransform; // [reset]
|
|
nsStyleCoord mTransformOrigin[3]; // [reset] percent, coord, calc, 3rd param is coord, calc only
|
|
nsStyleCoord mChildPerspective; // [reset] none, coord
|
|
nsStyleCoord mPerspectiveOrigin[2]; // [reset] percent, coord, calc
|
|
|
|
nsAutoTArray<mozilla::StyleTransition, 1> mTransitions; // [reset]
|
|
// The number of elements in mTransitions that are not from repeating
|
|
// a list due to another property being longer.
|
|
uint32_t mTransitionTimingFunctionCount,
|
|
mTransitionDurationCount,
|
|
mTransitionDelayCount,
|
|
mTransitionPropertyCount;
|
|
|
|
nsAutoTArray<mozilla::StyleAnimation, 1> mAnimations; // [reset]
|
|
// The number of elements in mAnimations that are not from repeating
|
|
// a list due to another property being longer.
|
|
uint32_t mAnimationTimingFunctionCount,
|
|
mAnimationDurationCount,
|
|
mAnimationDelayCount,
|
|
mAnimationNameCount,
|
|
mAnimationDirectionCount,
|
|
mAnimationFillModeCount,
|
|
mAnimationPlayStateCount,
|
|
mAnimationIterationCountCount;
|
|
|
|
bool IsBlockInsideStyle() const {
|
|
return NS_STYLE_DISPLAY_BLOCK == mDisplay ||
|
|
NS_STYLE_DISPLAY_LIST_ITEM == mDisplay ||
|
|
NS_STYLE_DISPLAY_INLINE_BLOCK == mDisplay ||
|
|
NS_STYLE_DISPLAY_TABLE_CAPTION == mDisplay;
|
|
// Should TABLE_CELL be included here? They have
|
|
// block frames nested inside of them.
|
|
// (But please audit all callers before changing.)
|
|
}
|
|
|
|
bool IsBlockOutsideStyle() const {
|
|
return NS_STYLE_DISPLAY_BLOCK == mDisplay ||
|
|
NS_STYLE_DISPLAY_FLEX == mDisplay ||
|
|
NS_STYLE_DISPLAY_GRID == mDisplay ||
|
|
NS_STYLE_DISPLAY_LIST_ITEM == mDisplay ||
|
|
NS_STYLE_DISPLAY_TABLE == mDisplay;
|
|
}
|
|
|
|
static bool IsDisplayTypeInlineOutside(uint8_t aDisplay) {
|
|
return NS_STYLE_DISPLAY_INLINE == aDisplay ||
|
|
NS_STYLE_DISPLAY_INLINE_BLOCK == aDisplay ||
|
|
NS_STYLE_DISPLAY_INLINE_TABLE == aDisplay ||
|
|
NS_STYLE_DISPLAY_INLINE_BOX == aDisplay ||
|
|
NS_STYLE_DISPLAY_INLINE_FLEX == aDisplay ||
|
|
NS_STYLE_DISPLAY_INLINE_GRID == aDisplay ||
|
|
NS_STYLE_DISPLAY_INLINE_XUL_GRID == aDisplay ||
|
|
NS_STYLE_DISPLAY_INLINE_STACK == aDisplay ||
|
|
NS_STYLE_DISPLAY_RUBY == aDisplay ||
|
|
NS_STYLE_DISPLAY_RUBY_BASE == aDisplay ||
|
|
NS_STYLE_DISPLAY_RUBY_BASE_CONTAINER == aDisplay ||
|
|
NS_STYLE_DISPLAY_RUBY_TEXT == aDisplay ||
|
|
NS_STYLE_DISPLAY_RUBY_TEXT_CONTAINER == aDisplay ||
|
|
NS_STYLE_DISPLAY_CONTENTS == aDisplay;
|
|
}
|
|
|
|
bool IsInlineOutsideStyle() const {
|
|
return IsDisplayTypeInlineOutside(mDisplay);
|
|
}
|
|
|
|
bool IsOriginalDisplayInlineOutsideStyle() const {
|
|
return IsDisplayTypeInlineOutside(mOriginalDisplay);
|
|
}
|
|
|
|
bool IsInnerTableStyle() const {
|
|
return NS_STYLE_DISPLAY_TABLE_CAPTION == mDisplay ||
|
|
NS_STYLE_DISPLAY_TABLE_CELL == mDisplay ||
|
|
NS_STYLE_DISPLAY_TABLE_ROW == mDisplay ||
|
|
NS_STYLE_DISPLAY_TABLE_ROW_GROUP == mDisplay ||
|
|
NS_STYLE_DISPLAY_TABLE_HEADER_GROUP == mDisplay ||
|
|
NS_STYLE_DISPLAY_TABLE_FOOTER_GROUP == mDisplay ||
|
|
NS_STYLE_DISPLAY_TABLE_COLUMN == mDisplay ||
|
|
NS_STYLE_DISPLAY_TABLE_COLUMN_GROUP == mDisplay;
|
|
}
|
|
|
|
bool IsFloatingStyle() const {
|
|
return NS_STYLE_FLOAT_NONE != mFloats;
|
|
}
|
|
|
|
bool IsAbsolutelyPositionedStyle() const {
|
|
return NS_STYLE_POSITION_ABSOLUTE == mPosition ||
|
|
NS_STYLE_POSITION_FIXED == mPosition;
|
|
}
|
|
|
|
bool IsRelativelyPositionedStyle() const {
|
|
return NS_STYLE_POSITION_RELATIVE == mPosition ||
|
|
NS_STYLE_POSITION_STICKY == mPosition;
|
|
}
|
|
bool IsPositionForcingStackingContext() const {
|
|
return NS_STYLE_POSITION_STICKY == mPosition ||
|
|
NS_STYLE_POSITION_FIXED == mPosition;
|
|
}
|
|
|
|
static bool IsRubyDisplayType(uint8_t aDisplay) {
|
|
return NS_STYLE_DISPLAY_RUBY == aDisplay ||
|
|
NS_STYLE_DISPLAY_RUBY_BASE == aDisplay ||
|
|
NS_STYLE_DISPLAY_RUBY_BASE_CONTAINER == aDisplay ||
|
|
NS_STYLE_DISPLAY_RUBY_TEXT == aDisplay ||
|
|
NS_STYLE_DISPLAY_RUBY_TEXT_CONTAINER == aDisplay;
|
|
}
|
|
|
|
bool IsRubyDisplayType() const {
|
|
return IsRubyDisplayType(mDisplay);
|
|
}
|
|
|
|
bool IsFlexOrGridDisplayType() const {
|
|
return NS_STYLE_DISPLAY_FLEX == mDisplay ||
|
|
NS_STYLE_DISPLAY_INLINE_FLEX == mDisplay ||
|
|
NS_STYLE_DISPLAY_GRID == mDisplay ||
|
|
NS_STYLE_DISPLAY_INLINE_GRID == mDisplay;
|
|
}
|
|
|
|
bool IsOutOfFlowStyle() const {
|
|
return (IsAbsolutelyPositionedStyle() || IsFloatingStyle());
|
|
}
|
|
|
|
bool IsScrollableOverflow() const {
|
|
// mOverflowX and mOverflowY always match when one of them is
|
|
// NS_STYLE_OVERFLOW_VISIBLE or NS_STYLE_OVERFLOW_CLIP.
|
|
return mOverflowX != NS_STYLE_OVERFLOW_VISIBLE &&
|
|
mOverflowX != NS_STYLE_OVERFLOW_CLIP;
|
|
}
|
|
|
|
bool IsContainPaint() const {
|
|
return NS_STYLE_CONTAIN_PAINT & mContain;
|
|
}
|
|
|
|
/* Returns whether the element has the -moz-transform property
|
|
* or a related property. */
|
|
bool HasTransformStyle() const {
|
|
return mSpecifiedTransform != nullptr ||
|
|
mTransformStyle == NS_STYLE_TRANSFORM_STYLE_PRESERVE_3D ||
|
|
(mWillChangeBitField & NS_STYLE_WILL_CHANGE_TRANSFORM);
|
|
}
|
|
|
|
bool HasPerspectiveStyle() const {
|
|
return mChildPerspective.GetUnit() == eStyleUnit_Coord;
|
|
}
|
|
|
|
bool BackfaceIsHidden() const {
|
|
return mBackfaceVisibility == NS_STYLE_BACKFACE_VISIBILITY_HIDDEN;
|
|
}
|
|
|
|
// These are defined in nsStyleStructInlines.h.
|
|
|
|
// The aContextFrame argument on each of these is the frame this
|
|
// style struct is for. If the frame is for SVG text, the return
|
|
// value will be massaged to be something that makes sense for
|
|
// SVG text.
|
|
inline bool IsBlockInside(const nsIFrame* aContextFrame) const;
|
|
inline bool IsBlockOutside(const nsIFrame* aContextFrame) const;
|
|
inline bool IsInlineOutside(const nsIFrame* aContextFrame) const;
|
|
inline bool IsOriginalDisplayInlineOutside(const nsIFrame* aContextFrame) const;
|
|
inline uint8_t GetDisplay(const nsIFrame* aContextFrame) const;
|
|
inline bool IsFloating(const nsIFrame* aContextFrame) const;
|
|
inline bool IsAbsPosContainingBlock(const nsIFrame* aContextFrame) const;
|
|
inline bool IsRelativelyPositioned(const nsIFrame* aContextFrame) const;
|
|
inline bool IsAbsolutelyPositioned(const nsIFrame* aContextFrame) const;
|
|
|
|
// These methods are defined in nsStyleStructInlines.h.
|
|
|
|
/**
|
|
* Returns true when the element has the transform property
|
|
* or a related property, and supports CSS transforms.
|
|
* aContextFrame is the frame for which this is the nsStylePosition.
|
|
*/
|
|
inline bool HasTransform(const nsIFrame* aContextFrame) const;
|
|
|
|
/**
|
|
* Returns true when the element is a containing block for its fixed-pos
|
|
* descendants.
|
|
* aContextFrame is the frame for which this is the nsStylePosition.
|
|
*/
|
|
inline bool IsFixedPosContainingBlock(const nsIFrame* aContextFrame) const;
|
|
|
|
// Return the 'float' and 'clear' properties, with inline-{start,end} values
|
|
// resolved to {left,right} according to the given writing mode. These are
|
|
// defined in WritingModes.h.
|
|
inline uint8_t PhysicalFloats(mozilla::WritingMode aWM) const;
|
|
inline uint8_t PhysicalBreakType(mozilla::WritingMode aWM) const;
|
|
};
|
|
|
|
struct nsStyleTable
|
|
{
|
|
nsStyleTable(void);
|
|
nsStyleTable(const nsStyleTable& aOther);
|
|
~nsStyleTable(void);
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleTable, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleTable();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleTable, this);
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleTable& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants as hints not handled for descendants.
|
|
return nsChangeHint_NeedReflow |
|
|
nsChangeHint_ReflowChangesSizeOrPosition |
|
|
nsChangeHint_ClearAncestorIntrinsics;
|
|
}
|
|
|
|
uint8_t mLayoutStrategy;// [reset] see nsStyleConsts.h NS_STYLE_TABLE_LAYOUT_*
|
|
int32_t mSpan; // [reset] the number of columns spanned by a colgroup or col
|
|
};
|
|
|
|
struct nsStyleTableBorder
|
|
{
|
|
nsStyleTableBorder();
|
|
nsStyleTableBorder(const nsStyleTableBorder& aOther);
|
|
~nsStyleTableBorder(void);
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleTableBorder, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleTableBorder();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleTableBorder, this);
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleTableBorder& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants as hints not handled for descendants.
|
|
return nsChangeHint_NeedReflow |
|
|
nsChangeHint_ReflowChangesSizeOrPosition |
|
|
nsChangeHint_ClearAncestorIntrinsics;
|
|
}
|
|
|
|
nscoord mBorderSpacingCol;// [inherited]
|
|
nscoord mBorderSpacingRow;// [inherited]
|
|
uint8_t mBorderCollapse;// [inherited]
|
|
uint8_t mCaptionSide; // [inherited]
|
|
uint8_t mEmptyCells; // [inherited]
|
|
};
|
|
|
|
enum nsStyleContentType {
|
|
eStyleContentType_String = 1,
|
|
eStyleContentType_Image = 10,
|
|
eStyleContentType_Attr = 20,
|
|
eStyleContentType_Counter = 30,
|
|
eStyleContentType_Counters = 31,
|
|
eStyleContentType_OpenQuote = 40,
|
|
eStyleContentType_CloseQuote = 41,
|
|
eStyleContentType_NoOpenQuote = 42,
|
|
eStyleContentType_NoCloseQuote = 43,
|
|
eStyleContentType_AltContent = 50,
|
|
eStyleContentType_Uninitialized
|
|
};
|
|
|
|
struct nsStyleContentData
|
|
{
|
|
nsStyleContentType mType;
|
|
union {
|
|
char16_t *mString;
|
|
imgRequestProxy *mImage;
|
|
nsCSSValue::Array* mCounters;
|
|
} mContent;
|
|
#ifdef DEBUG
|
|
bool mImageTracked;
|
|
#endif
|
|
|
|
nsStyleContentData()
|
|
: mType(eStyleContentType_Uninitialized)
|
|
#ifdef DEBUG
|
|
, mImageTracked(false)
|
|
#endif
|
|
{ mContent.mString = nullptr; }
|
|
|
|
~nsStyleContentData();
|
|
nsStyleContentData& operator=(const nsStyleContentData& aOther);
|
|
bool operator==(const nsStyleContentData& aOther) const;
|
|
|
|
bool operator!=(const nsStyleContentData& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
void TrackImage(nsPresContext* aContext);
|
|
void UntrackImage(nsPresContext* aContext);
|
|
|
|
void SetImage(imgRequestProxy* aRequest)
|
|
{
|
|
MOZ_ASSERT(!mImageTracked,
|
|
"Setting a new image without untracking the old one!");
|
|
MOZ_ASSERT(mType == eStyleContentType_Image, "Wrong type!");
|
|
NS_IF_ADDREF(mContent.mImage = aRequest);
|
|
}
|
|
private:
|
|
nsStyleContentData(const nsStyleContentData&); // not to be implemented
|
|
};
|
|
|
|
struct nsStyleCounterData
|
|
{
|
|
nsString mCounter;
|
|
int32_t mValue;
|
|
};
|
|
|
|
|
|
#define DELETE_ARRAY_IF(array) if (array) { delete[] array; array = nullptr; }
|
|
|
|
struct nsStyleQuotes
|
|
{
|
|
nsStyleQuotes();
|
|
nsStyleQuotes(const nsStyleQuotes& aQuotes);
|
|
~nsStyleQuotes();
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleQuotes, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleQuotes();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleQuotes, this);
|
|
}
|
|
|
|
void SetInitial();
|
|
void CopyFrom(const nsStyleQuotes& aSource);
|
|
|
|
nsChangeHint CalcDifference(const nsStyleQuotes& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants as hints not handled for descendants.
|
|
return nsChangeHint_NeedReflow |
|
|
nsChangeHint_ReflowChangesSizeOrPosition |
|
|
nsChangeHint_ClearAncestorIntrinsics;
|
|
}
|
|
|
|
uint32_t QuotesCount(void) const { return mQuotesCount; } // [inherited]
|
|
|
|
const nsString* OpenQuoteAt(uint32_t aIndex) const
|
|
{
|
|
NS_ASSERTION(aIndex < mQuotesCount, "out of range");
|
|
return mQuotes + (aIndex * 2);
|
|
}
|
|
const nsString* CloseQuoteAt(uint32_t aIndex) const
|
|
{
|
|
NS_ASSERTION(aIndex < mQuotesCount, "out of range");
|
|
return mQuotes + (aIndex * 2 + 1);
|
|
}
|
|
nsresult GetQuotesAt(uint32_t aIndex, nsString& aOpen, nsString& aClose) const {
|
|
if (aIndex < mQuotesCount) {
|
|
aIndex *= 2;
|
|
aOpen = mQuotes[aIndex];
|
|
aClose = mQuotes[++aIndex];
|
|
return NS_OK;
|
|
}
|
|
return NS_ERROR_ILLEGAL_VALUE;
|
|
}
|
|
|
|
nsresult AllocateQuotes(uint32_t aCount) {
|
|
if (aCount != mQuotesCount) {
|
|
DELETE_ARRAY_IF(mQuotes);
|
|
if (aCount) {
|
|
mQuotes = new nsString[aCount * 2];
|
|
if (! mQuotes) {
|
|
mQuotesCount = 0;
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
}
|
|
mQuotesCount = aCount;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult SetQuotesAt(uint32_t aIndex, const nsString& aOpen, const nsString& aClose) {
|
|
if (aIndex < mQuotesCount) {
|
|
aIndex *= 2;
|
|
mQuotes[aIndex] = aOpen;
|
|
mQuotes[++aIndex] = aClose;
|
|
return NS_OK;
|
|
}
|
|
return NS_ERROR_ILLEGAL_VALUE;
|
|
}
|
|
|
|
protected:
|
|
uint32_t mQuotesCount;
|
|
nsString* mQuotes;
|
|
};
|
|
|
|
struct nsStyleContent
|
|
{
|
|
nsStyleContent(void);
|
|
nsStyleContent(const nsStyleContent& aContent);
|
|
~nsStyleContent(void);
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleContent, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext);
|
|
|
|
nsChangeHint CalcDifference(const nsStyleContent& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants as hints not handled for descendants.
|
|
return nsChangeHint_NeedReflow |
|
|
nsChangeHint_ReflowChangesSizeOrPosition |
|
|
nsChangeHint_ClearAncestorIntrinsics;
|
|
}
|
|
|
|
uint32_t ContentCount(void) const { return mContentCount; } // [reset]
|
|
|
|
const nsStyleContentData& ContentAt(uint32_t aIndex) const {
|
|
NS_ASSERTION(aIndex < mContentCount, "out of range");
|
|
return mContents[aIndex];
|
|
}
|
|
|
|
nsStyleContentData& ContentAt(uint32_t aIndex) {
|
|
NS_ASSERTION(aIndex < mContentCount, "out of range");
|
|
return mContents[aIndex];
|
|
}
|
|
|
|
nsresult AllocateContents(uint32_t aCount);
|
|
|
|
uint32_t CounterIncrementCount(void) const { return mIncrementCount; } // [reset]
|
|
const nsStyleCounterData* GetCounterIncrementAt(uint32_t aIndex) const {
|
|
NS_ASSERTION(aIndex < mIncrementCount, "out of range");
|
|
return &mIncrements[aIndex];
|
|
}
|
|
|
|
nsresult AllocateCounterIncrements(uint32_t aCount) {
|
|
if (aCount != mIncrementCount) {
|
|
DELETE_ARRAY_IF(mIncrements);
|
|
if (aCount) {
|
|
mIncrements = new nsStyleCounterData[aCount];
|
|
if (! mIncrements) {
|
|
mIncrementCount = 0;
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
}
|
|
mIncrementCount = aCount;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult SetCounterIncrementAt(uint32_t aIndex, const nsString& aCounter, int32_t aIncrement) {
|
|
if (aIndex < mIncrementCount) {
|
|
mIncrements[aIndex].mCounter = aCounter;
|
|
mIncrements[aIndex].mValue = aIncrement;
|
|
return NS_OK;
|
|
}
|
|
return NS_ERROR_ILLEGAL_VALUE;
|
|
}
|
|
|
|
uint32_t CounterResetCount(void) const { return mResetCount; } // [reset]
|
|
const nsStyleCounterData* GetCounterResetAt(uint32_t aIndex) const {
|
|
NS_ASSERTION(aIndex < mResetCount, "out of range");
|
|
return &mResets[aIndex];
|
|
}
|
|
|
|
nsresult AllocateCounterResets(uint32_t aCount) {
|
|
if (aCount != mResetCount) {
|
|
DELETE_ARRAY_IF(mResets);
|
|
if (aCount) {
|
|
mResets = new nsStyleCounterData[aCount];
|
|
if (! mResets) {
|
|
mResetCount = 0;
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
}
|
|
mResetCount = aCount;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult SetCounterResetAt(uint32_t aIndex, const nsString& aCounter, int32_t aValue) {
|
|
if (aIndex < mResetCount) {
|
|
mResets[aIndex].mCounter = aCounter;
|
|
mResets[aIndex].mValue = aValue;
|
|
return NS_OK;
|
|
}
|
|
return NS_ERROR_ILLEGAL_VALUE;
|
|
}
|
|
|
|
nsStyleCoord mMarkerOffset; // [reset] coord, auto
|
|
|
|
protected:
|
|
nsStyleContentData* mContents;
|
|
nsStyleCounterData* mIncrements;
|
|
nsStyleCounterData* mResets;
|
|
|
|
uint32_t mContentCount;
|
|
uint32_t mIncrementCount;
|
|
uint32_t mResetCount;
|
|
};
|
|
|
|
struct nsStyleUIReset
|
|
{
|
|
nsStyleUIReset(void);
|
|
nsStyleUIReset(const nsStyleUIReset& aOther);
|
|
~nsStyleUIReset(void);
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleUIReset, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleUIReset();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleUIReset, this);
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleUIReset& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants as hints not handled for descendants.
|
|
return nsChangeHint_NeedReflow |
|
|
nsChangeHint_ReflowChangesSizeOrPosition |
|
|
nsChangeHint_ClearAncestorIntrinsics;
|
|
}
|
|
|
|
uint8_t mUserSelect; // [reset] (selection-style)
|
|
uint8_t mForceBrokenImageIcon; // [reset] (0 if not forcing, otherwise forcing)
|
|
uint8_t mIMEMode; // [reset]
|
|
uint8_t mWindowDragging; // [reset]
|
|
uint8_t mWindowShadow; // [reset]
|
|
};
|
|
|
|
struct nsCursorImage
|
|
{
|
|
bool mHaveHotspot;
|
|
float mHotspotX, mHotspotY;
|
|
|
|
nsCursorImage();
|
|
nsCursorImage(const nsCursorImage& aOther);
|
|
~nsCursorImage();
|
|
|
|
nsCursorImage& operator=(const nsCursorImage& aOther);
|
|
/*
|
|
* We hide mImage and force access through the getter and setter so that we
|
|
* can lock the images we use. Cursor images are likely to be small, so we
|
|
* don't care about discarding them. See bug 512260.
|
|
* */
|
|
void SetImage(imgIRequest *aImage) {
|
|
if (mImage)
|
|
mImage->UnlockImage();
|
|
mImage = aImage;
|
|
if (mImage)
|
|
mImage->LockImage();
|
|
}
|
|
imgIRequest* GetImage() const {
|
|
return mImage;
|
|
}
|
|
|
|
private:
|
|
nsCOMPtr<imgIRequest> mImage;
|
|
};
|
|
|
|
struct nsStyleUserInterface
|
|
{
|
|
nsStyleUserInterface(void);
|
|
nsStyleUserInterface(const nsStyleUserInterface& aOther);
|
|
~nsStyleUserInterface(void);
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleUserInterface, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleUserInterface();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleUserInterface, this);
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleUserInterface& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_CombineHint(NS_STYLE_HINT_FRAMECHANGE,
|
|
NS_CombineHint(nsChangeHint_UpdateCursor,
|
|
nsChangeHint_NeutralChange));
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants as hints not handled for descendants.
|
|
return nsChangeHint_NeedReflow |
|
|
nsChangeHint_ReflowChangesSizeOrPosition |
|
|
nsChangeHint_ClearAncestorIntrinsics;
|
|
}
|
|
|
|
uint8_t mUserInput; // [inherited]
|
|
uint8_t mUserModify; // [inherited] (modify-content)
|
|
uint8_t mUserFocus; // [inherited] (auto-select)
|
|
|
|
uint8_t mCursor; // [inherited] See nsStyleConsts.h
|
|
|
|
uint32_t mCursorArrayLength;
|
|
nsCursorImage *mCursorArray;// [inherited] The specified URL values
|
|
// and coordinates. Takes precedence over
|
|
// mCursor. Zero-length array is represented
|
|
// by null pointer.
|
|
|
|
// Does not free mCursorArray; the caller is responsible for calling
|
|
// |delete [] mCursorArray| first if it is needed.
|
|
void CopyCursorArrayFrom(const nsStyleUserInterface& aSource);
|
|
};
|
|
|
|
struct nsStyleXUL
|
|
{
|
|
nsStyleXUL();
|
|
nsStyleXUL(const nsStyleXUL& aSource);
|
|
~nsStyleXUL();
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleXUL, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleXUL();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleXUL, this);
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleXUL& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_STYLE_HINT_FRAMECHANGE;
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants as hints not handled for descendants.
|
|
return nsChangeHint_NeedReflow |
|
|
nsChangeHint_ReflowChangesSizeOrPosition |
|
|
nsChangeHint_ClearAncestorIntrinsics;
|
|
}
|
|
|
|
float mBoxFlex; // [reset] see nsStyleConsts.h
|
|
uint32_t mBoxOrdinal; // [reset] see nsStyleConsts.h
|
|
uint8_t mBoxAlign; // [reset] see nsStyleConsts.h
|
|
uint8_t mBoxDirection; // [reset] see nsStyleConsts.h
|
|
uint8_t mBoxOrient; // [reset] see nsStyleConsts.h
|
|
uint8_t mBoxPack; // [reset] see nsStyleConsts.h
|
|
bool mStretchStack; // [reset] see nsStyleConsts.h
|
|
};
|
|
|
|
struct nsStyleColumn
|
|
{
|
|
explicit nsStyleColumn(nsPresContext* aPresContext);
|
|
nsStyleColumn(const nsStyleColumn& aSource);
|
|
~nsStyleColumn();
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleColumn, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleColumn();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleColumn, this);
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleColumn& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_CombineHint(NS_STYLE_HINT_FRAMECHANGE,
|
|
nsChangeHint_NeutralChange);
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants as hints not handled for descendants.
|
|
return nsChangeHint_NeedReflow |
|
|
nsChangeHint_ReflowChangesSizeOrPosition |
|
|
nsChangeHint_ClearAncestorIntrinsics;
|
|
}
|
|
|
|
/**
|
|
* This is the maximum number of columns we can process. It's used in both
|
|
* nsColumnSetFrame and nsRuleNode.
|
|
*/
|
|
static const uint32_t kMaxColumnCount;
|
|
|
|
uint32_t mColumnCount; // [reset] see nsStyleConsts.h
|
|
nsStyleCoord mColumnWidth; // [reset] coord, auto
|
|
nsStyleCoord mColumnGap; // [reset] coord, normal
|
|
|
|
nscolor mColumnRuleColor; // [reset]
|
|
uint8_t mColumnRuleStyle; // [reset]
|
|
uint8_t mColumnFill; // [reset] see nsStyleConsts.h
|
|
|
|
// See https://bugzilla.mozilla.org/show_bug.cgi?id=271586#c43 for why
|
|
// this is hard to replace with 'currentColor'.
|
|
bool mColumnRuleColorIsForeground;
|
|
|
|
void SetColumnRuleWidth(nscoord aWidth) {
|
|
mColumnRuleWidth = NS_ROUND_BORDER_TO_PIXELS(aWidth, mTwipsPerPixel);
|
|
}
|
|
|
|
nscoord GetComputedColumnRuleWidth() const {
|
|
return (IsVisibleBorderStyle(mColumnRuleStyle) ? mColumnRuleWidth : 0);
|
|
}
|
|
|
|
protected:
|
|
nscoord mColumnRuleWidth; // [reset] coord
|
|
nscoord mTwipsPerPixel;
|
|
};
|
|
|
|
enum nsStyleSVGPaintType {
|
|
eStyleSVGPaintType_None = 1,
|
|
eStyleSVGPaintType_Color,
|
|
eStyleSVGPaintType_Server,
|
|
eStyleSVGPaintType_ContextFill,
|
|
eStyleSVGPaintType_ContextStroke
|
|
};
|
|
|
|
enum nsStyleSVGOpacitySource {
|
|
eStyleSVGOpacitySource_Normal,
|
|
eStyleSVGOpacitySource_ContextFillOpacity,
|
|
eStyleSVGOpacitySource_ContextStrokeOpacity
|
|
};
|
|
|
|
struct nsStyleSVGPaint
|
|
{
|
|
union {
|
|
nscolor mColor;
|
|
nsIURI *mPaintServer;
|
|
} mPaint;
|
|
nsStyleSVGPaintType mType;
|
|
nscolor mFallbackColor;
|
|
|
|
nsStyleSVGPaint() : mType(nsStyleSVGPaintType(0)) { mPaint.mPaintServer = nullptr; }
|
|
~nsStyleSVGPaint();
|
|
void SetType(nsStyleSVGPaintType aType);
|
|
nsStyleSVGPaint& operator=(const nsStyleSVGPaint& aOther);
|
|
bool operator==(const nsStyleSVGPaint& aOther) const;
|
|
|
|
bool operator!=(const nsStyleSVGPaint& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
};
|
|
|
|
struct nsStyleSVG
|
|
{
|
|
nsStyleSVG();
|
|
nsStyleSVG(const nsStyleSVG& aSource);
|
|
~nsStyleSVG();
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleSVG, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleSVG();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleSVG, this);
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleSVG& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_CombineHint(NS_CombineHint(nsChangeHint_UpdateEffects,
|
|
NS_CombineHint(nsChangeHint_NeedReflow, nsChangeHint_NeedDirtyReflow)), // XXX remove nsChangeHint_NeedDirtyReflow: bug 876085
|
|
nsChangeHint_RepaintFrame);
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns nsChangeHint_NeedReflow as a hint
|
|
// not handled for descendants, and never returns
|
|
// nsChangeHint_ClearAncestorIntrinsics at all.
|
|
return nsChangeHint_NeedReflow;
|
|
}
|
|
|
|
nsStyleSVGPaint mFill; // [inherited]
|
|
nsStyleSVGPaint mStroke; // [inherited]
|
|
nsCOMPtr<nsIURI> mMarkerEnd; // [inherited]
|
|
nsCOMPtr<nsIURI> mMarkerMid; // [inherited]
|
|
nsCOMPtr<nsIURI> mMarkerStart; // [inherited]
|
|
nsStyleCoord *mStrokeDasharray; // [inherited] coord, percent, factor
|
|
|
|
nsStyleCoord mStrokeDashoffset; // [inherited] coord, percent, factor
|
|
nsStyleCoord mStrokeWidth; // [inherited] coord, percent, factor
|
|
|
|
float mFillOpacity; // [inherited]
|
|
float mStrokeMiterlimit; // [inherited]
|
|
float mStrokeOpacity; // [inherited]
|
|
|
|
uint32_t mStrokeDasharrayLength;
|
|
uint8_t mClipRule; // [inherited]
|
|
uint8_t mColorInterpolation; // [inherited] see nsStyleConsts.h
|
|
uint8_t mColorInterpolationFilters; // [inherited] see nsStyleConsts.h
|
|
uint8_t mFillRule; // [inherited] see nsStyleConsts.h
|
|
uint8_t mImageRendering; // [inherited] see nsStyleConsts.h
|
|
uint8_t mPaintOrder; // [inherited] see nsStyleConsts.h
|
|
uint8_t mShapeRendering; // [inherited] see nsStyleConsts.h
|
|
uint8_t mStrokeLinecap; // [inherited] see nsStyleConsts.h
|
|
uint8_t mStrokeLinejoin; // [inherited] see nsStyleConsts.h
|
|
uint8_t mTextAnchor; // [inherited] see nsStyleConsts.h
|
|
uint8_t mTextRendering; // [inherited] see nsStyleConsts.h
|
|
|
|
// In SVG glyphs, whether we inherit fill or stroke opacity from the outer
|
|
// text object.
|
|
// Use 3 bits to avoid signedness problems in MSVC.
|
|
nsStyleSVGOpacitySource mFillOpacitySource : 3;
|
|
nsStyleSVGOpacitySource mStrokeOpacitySource : 3;
|
|
|
|
// SVG glyph outer object inheritance for other properties
|
|
bool mStrokeDasharrayFromObject : 1;
|
|
bool mStrokeDashoffsetFromObject : 1;
|
|
bool mStrokeWidthFromObject : 1;
|
|
|
|
bool HasMarker() const {
|
|
return mMarkerStart || mMarkerMid || mMarkerEnd;
|
|
}
|
|
|
|
/**
|
|
* Returns true if the stroke is not "none" and the stroke-opacity is greater
|
|
* than zero. This ignores stroke-widths as that depends on the context.
|
|
*/
|
|
bool HasStroke() const {
|
|
return mStroke.mType != eStyleSVGPaintType_None && mStrokeOpacity > 0;
|
|
}
|
|
|
|
/**
|
|
* Returns true if the fill is not "none" and the fill-opacity is greater
|
|
* than zero.
|
|
*/
|
|
bool HasFill() const {
|
|
return mFill.mType != eStyleSVGPaintType_None && mFillOpacity > 0;
|
|
}
|
|
};
|
|
|
|
class nsStyleBasicShape final
|
|
{
|
|
public:
|
|
enum Type {
|
|
eInset,
|
|
eCircle,
|
|
eEllipse,
|
|
ePolygon
|
|
};
|
|
|
|
explicit nsStyleBasicShape(Type type)
|
|
: mType(type),
|
|
mFillRule(NS_STYLE_FILL_RULE_NONZERO)
|
|
{
|
|
mPosition.SetInitialPercentValues(0.5f);
|
|
}
|
|
|
|
Type GetShapeType() const { return mType; }
|
|
|
|
int32_t GetFillRule() const { return mFillRule; }
|
|
void SetFillRule(int32_t aFillRule)
|
|
{
|
|
NS_ASSERTION(mType == ePolygon, "expected polygon");
|
|
mFillRule = aFillRule;
|
|
}
|
|
|
|
typedef nsStyleImageLayers::Position Position;
|
|
Position& GetPosition() {
|
|
NS_ASSERTION(mType == eCircle || mType == eEllipse,
|
|
"expected circle or ellipse");
|
|
return mPosition;
|
|
}
|
|
const Position& GetPosition() const {
|
|
NS_ASSERTION(mType == eCircle || mType == eEllipse,
|
|
"expected circle or ellipse");
|
|
return mPosition;
|
|
}
|
|
|
|
bool HasRadius() const {
|
|
NS_ASSERTION(mType == eInset, "expected inset");
|
|
nsStyleCoord zero;
|
|
zero.SetCoordValue(0);
|
|
NS_FOR_CSS_HALF_CORNERS(corner) {
|
|
if (mRadius.Get(corner) != zero) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
nsStyleCorners& GetRadius() {
|
|
NS_ASSERTION(mType == eInset, "expected inset");
|
|
return mRadius;
|
|
}
|
|
const nsStyleCorners& GetRadius() const {
|
|
NS_ASSERTION(mType == eInset, "expected inset");
|
|
return mRadius;
|
|
}
|
|
|
|
// mCoordinates has coordinates for polygon or radii for
|
|
// ellipse and circle.
|
|
nsTArray<nsStyleCoord>& Coordinates()
|
|
{
|
|
return mCoordinates;
|
|
}
|
|
|
|
const nsTArray<nsStyleCoord>& Coordinates() const
|
|
{
|
|
return mCoordinates;
|
|
}
|
|
|
|
bool operator==(const nsStyleBasicShape& aOther) const
|
|
{
|
|
return mType == aOther.mType &&
|
|
mFillRule == aOther.mFillRule &&
|
|
mCoordinates == aOther.mCoordinates &&
|
|
mPosition == aOther.mPosition &&
|
|
mRadius == aOther.mRadius;
|
|
}
|
|
bool operator!=(const nsStyleBasicShape& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
NS_INLINE_DECL_REFCOUNTING(nsStyleBasicShape);
|
|
|
|
private:
|
|
~nsStyleBasicShape() {}
|
|
|
|
Type mType;
|
|
int32_t mFillRule;
|
|
|
|
// mCoordinates has coordinates for polygon or radii for
|
|
// ellipse and circle.
|
|
nsTArray<nsStyleCoord> mCoordinates;
|
|
Position mPosition;
|
|
nsStyleCorners mRadius;
|
|
};
|
|
|
|
struct nsStyleClipPath
|
|
{
|
|
nsStyleClipPath();
|
|
nsStyleClipPath(const nsStyleClipPath& aSource);
|
|
~nsStyleClipPath();
|
|
|
|
nsStyleClipPath& operator=(const nsStyleClipPath& aOther);
|
|
|
|
bool operator==(const nsStyleClipPath& aOther) const;
|
|
bool operator!=(const nsStyleClipPath& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
int32_t GetType() const {
|
|
return mType;
|
|
}
|
|
|
|
nsIURI* GetURL() const {
|
|
NS_ASSERTION(mType == NS_STYLE_CLIP_PATH_URL, "wrong clip-path type");
|
|
return mURL;
|
|
}
|
|
void SetURL(nsIURI* aURL);
|
|
|
|
nsStyleBasicShape* GetBasicShape() const {
|
|
NS_ASSERTION(mType == NS_STYLE_CLIP_PATH_SHAPE, "wrong clip-path type");
|
|
return mBasicShape;
|
|
}
|
|
|
|
void SetBasicShape(nsStyleBasicShape* mBasicShape,
|
|
uint8_t aSizingBox = NS_STYLE_CLIP_SHAPE_SIZING_NOBOX);
|
|
|
|
uint8_t GetSizingBox() const { return mSizingBox; }
|
|
void SetSizingBox(uint8_t aSizingBox);
|
|
|
|
private:
|
|
void ReleaseRef();
|
|
void* operator new(size_t) = delete;
|
|
|
|
int32_t mType; // see NS_STYLE_CLIP_PATH_* constants in nsStyleConsts.h
|
|
union {
|
|
nsStyleBasicShape* mBasicShape;
|
|
nsIURI* mURL;
|
|
};
|
|
uint8_t mSizingBox; // see NS_STYLE_CLIP_SHAPE_SIZING_* constants in nsStyleConsts.h
|
|
};
|
|
|
|
struct nsStyleFilter
|
|
{
|
|
nsStyleFilter();
|
|
nsStyleFilter(const nsStyleFilter& aSource);
|
|
~nsStyleFilter();
|
|
|
|
nsStyleFilter& operator=(const nsStyleFilter& aOther);
|
|
|
|
bool operator==(const nsStyleFilter& aOther) const;
|
|
bool operator!=(const nsStyleFilter& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
int32_t GetType() const {
|
|
return mType;
|
|
}
|
|
|
|
const nsStyleCoord& GetFilterParameter() const {
|
|
NS_ASSERTION(mType != NS_STYLE_FILTER_DROP_SHADOW &&
|
|
mType != NS_STYLE_FILTER_URL &&
|
|
mType != NS_STYLE_FILTER_NONE, "wrong filter type");
|
|
return mFilterParameter;
|
|
}
|
|
void SetFilterParameter(const nsStyleCoord& aFilterParameter,
|
|
int32_t aType);
|
|
|
|
nsIURI* GetURL() const {
|
|
NS_ASSERTION(mType == NS_STYLE_FILTER_URL, "wrong filter type");
|
|
return mURL;
|
|
}
|
|
void SetURL(nsIURI* aURL);
|
|
|
|
nsCSSShadowArray* GetDropShadow() const {
|
|
NS_ASSERTION(mType == NS_STYLE_FILTER_DROP_SHADOW, "wrong filter type");
|
|
return mDropShadow;
|
|
}
|
|
void SetDropShadow(nsCSSShadowArray* aDropShadow);
|
|
|
|
private:
|
|
void ReleaseRef();
|
|
|
|
int32_t mType; // see NS_STYLE_FILTER_* constants in nsStyleConsts.h
|
|
nsStyleCoord mFilterParameter; // coord, percent, factor, angle
|
|
union {
|
|
nsIURI* mURL;
|
|
nsCSSShadowArray* mDropShadow;
|
|
};
|
|
};
|
|
|
|
template<>
|
|
struct nsTArray_CopyChooser<nsStyleFilter>
|
|
{
|
|
typedef nsTArray_CopyWithConstructors<nsStyleFilter> Type;
|
|
};
|
|
|
|
struct nsStyleSVGReset
|
|
{
|
|
nsStyleSVGReset();
|
|
nsStyleSVGReset(const nsStyleSVGReset& aSource);
|
|
~nsStyleSVGReset();
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleSVGReset, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext);
|
|
|
|
nsChangeHint CalcDifference(const nsStyleSVGReset& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_UpdateEffects |
|
|
nsChangeHint_UpdateOverflow |
|
|
nsChangeHint_NeutralChange |
|
|
NS_STYLE_HINT_REFLOW;
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants as hints not handled for descendants.
|
|
return nsChangeHint_NeedReflow |
|
|
nsChangeHint_ReflowChangesSizeOrPosition |
|
|
nsChangeHint_ClearAncestorIntrinsics;
|
|
}
|
|
|
|
bool HasFilters() const {
|
|
return !mFilters.IsEmpty();
|
|
}
|
|
|
|
bool HasNonScalingStroke() const {
|
|
return mVectorEffect == NS_STYLE_VECTOR_EFFECT_NON_SCALING_STROKE;
|
|
}
|
|
|
|
nsStyleImageLayers mMask;
|
|
nsStyleClipPath mClipPath; // [reset]
|
|
nsTArray<nsStyleFilter> mFilters; // [reset]
|
|
nscolor mStopColor; // [reset]
|
|
nscolor mFloodColor; // [reset]
|
|
nscolor mLightingColor; // [reset]
|
|
|
|
float mStopOpacity; // [reset]
|
|
float mFloodOpacity; // [reset]
|
|
|
|
uint8_t mDominantBaseline; // [reset] see nsStyleConsts.h
|
|
uint8_t mVectorEffect; // [reset] see nsStyleConsts.h
|
|
uint8_t mMaskType; // [reset] see nsStyleConsts.h
|
|
};
|
|
|
|
struct nsStyleVariables
|
|
{
|
|
nsStyleVariables();
|
|
nsStyleVariables(const nsStyleVariables& aSource);
|
|
~nsStyleVariables();
|
|
|
|
void* operator new(size_t sz, nsPresContext* aContext) CPP_THROW_NEW {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleVariables, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleVariables();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleVariables, this);
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleVariables& aOther) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint(0);
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns nsChangeHint_NeedReflow or
|
|
// nsChangeHint_ClearAncestorIntrinsics at all.
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
mozilla::CSSVariableValues mVariables;
|
|
};
|
|
|
|
#endif /* nsStyleStruct_h___ */
|