зеркало из https://github.com/mozilla/gecko-dev.git
4086 строки
143 KiB
C++
4086 строки
143 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/Maybe.h"
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#include "mozilla/SheetType.h"
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#include "mozilla/StaticPtr.h"
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#include "mozilla/StyleComplexColor.h"
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#include "mozilla/UniquePtr.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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#include <cstddef> // offsetof()
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#include <utility>
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#include "X11UndefineNone.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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namespace mozilla {
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namespace dom {
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class ImageTracker;
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} // namespace dom
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} // namespace mozilla
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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::IsTextCombined
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#define NS_STYLE_IS_TEXT_COMBINED 0x800000000
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// See nsStyleContext::GetPseudoEnum
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#define NS_STYLE_CONTEXT_TYPE_SHIFT 36
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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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// Free bit 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_STYLE_INHERIT_MASK == (1 << nsStyleStructID_Length) - 1,
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"NS_STYLE_INHERIT_MASK is not correct");
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static_assert((NS_RULE_NODE_IS_ANIMATION_RULE & NS_STYLE_INHERIT_MASK) == 0,
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"NS_RULE_NODE_IS_ANIMATION_RULE must not overlap the style struct bits.");
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namespace mozilla {
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struct Position {
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using Coord = nsStyleCoord::CalcValue;
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Coord mXPosition, mYPosition;
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// Initialize nothing
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Position() {}
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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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} // namespace mozilla
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// The lifetime of these objects is managed by the presshell's arena.
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struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleFont
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{
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nsStyleFont(const nsFont& aFont, const nsPresContext* aContext);
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nsStyleFont(const nsStyleFont& aStyleFont);
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explicit nsStyleFont(const nsPresContext* aContext);
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~nsStyleFont() {
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MOZ_COUNT_DTOR(nsStyleFont);
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}
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void FinishStyle(nsPresContext* aPresContext) {}
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nsChangeHint CalcDifference(const nsStyleFont& aNewData) const;
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static nsChangeHint MaxDifference() {
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return 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(const 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(const nsPresContext* aPresContext);
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void* operator new(size_t sz, nsStyleFont* aSelf) { return aSelf; }
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void* operator new(size_t sz, nsPresContext* aContext) {
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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_THREADSAFE_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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/**
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* A wrapper for an imgRequestProxy that supports off-main-thread creation
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* and equality comparison.
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*
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* An nsStyleImageRequest can be created in two ways:
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*
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* 1. Using the constructor that takes an imgRequestProxy. This must
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* be called from the main thread. The nsStyleImageRequest is
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* immediately considered "resolved", and the get() method that
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* returns the imgRequestProxy can be called.
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*
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* 2. Using the constructor that takes the URL, base URI, referrer
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* and principal that can be used to inititiate an image load and
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* produce an imgRequestProxy later. This can be called from
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* any thread. The nsStyleImageRequest is not considered "resolved"
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* at this point, and the Resolve() method must be called later
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* to initiate the image load and make calls to get() valid.
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*
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* Calls to TrackImage(), UntrackImage(), LockImage(), UnlockImage() and
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* RequestDiscard() are made to the imgRequestProxy and ImageTracker as
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* appropriate, according to the mode flags passed in to the constructor.
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*
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* The main thread constructor takes a pointer to the css::ImageValue that
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* is the specified url() value, while the off-main-thread constructor
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* creates a new css::ImageValue to represent the url() information passed
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* to the constructor. This ImageValue is held on to for the comparisons done
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* in DefinitelyEquals(), so that we don't need to call into the non-OMT-safe
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* Equals() on the nsIURI objects returned from imgRequestProxy::GetURI().
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*/
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class nsStyleImageRequest
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{
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public:
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// Flags describing whether the imgRequestProxy must be tracked in the
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// ImageTracker, whether LockImage/UnlockImage calls will be made
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// when obtaining and releasing the imgRequestProxy, and whether
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// RequestDiscard will be called on release.
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enum class Mode : uint8_t {
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// The imgRequestProxy will be added to the ImageTracker when resolved
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// Without this flag, the nsStyleImageRequest itself will call LockImage/
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// UnlockImage on the imgRequestProxy, rather than leaving locking to the
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// ImageTracker to manage.
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//
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// This flag is currently used by all nsStyleImageRequests except
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// those for list-style-image and cursor.
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Track = 0x1,
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// The imgRequestProxy will have its RequestDiscard method called when
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// the nsStyleImageRequest is going away.
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//
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// This is currently used only for cursor images.
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Discard = 0x2,
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};
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// Must be called from the main thread.
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//
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// aImageTracker must be non-null iff aModeFlags contains Track.
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nsStyleImageRequest(Mode aModeFlags,
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imgRequestProxy* aRequestProxy,
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mozilla::css::ImageValue* aImageValue,
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mozilla::dom::ImageTracker* aImageTracker);
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// Can be called from any thread, but Resolve() must be called later
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// on the main thread before get() can be used.
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nsStyleImageRequest(
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Mode aModeFlags,
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nsStringBuffer* aURLBuffer,
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already_AddRefed<mozilla::PtrHolder<nsIURI>> aBaseURI,
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already_AddRefed<mozilla::PtrHolder<nsIURI>> aReferrer,
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already_AddRefed<mozilla::PtrHolder<nsIPrincipal>> aPrincipal);
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bool Resolve(nsPresContext* aPresContext);
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bool IsResolved() const { return mResolved; }
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imgRequestProxy* get() {
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MOZ_ASSERT(IsResolved(), "Resolve() must be called first");
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MOZ_ASSERT(NS_IsMainThread());
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return mRequestProxy.get();
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}
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const imgRequestProxy* get() const {
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return const_cast<nsStyleImageRequest*>(this)->get();
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}
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// Returns whether the ImageValue objects in the two nsStyleImageRequests
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// return true from URLValueData::DefinitelyEqualURIs.
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bool DefinitelyEquals(const nsStyleImageRequest& aOther) const;
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mozilla::css::ImageValue* GetImageValue() const { return mImageValue; }
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(nsStyleImageRequest);
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private:
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~nsStyleImageRequest();
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nsStyleImageRequest& operator=(const nsStyleImageRequest& aOther) = delete;
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void MaybeTrackAndLock();
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RefPtr<imgRequestProxy> mRequestProxy;
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RefPtr<mozilla::css::ImageValue> mImageValue;
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RefPtr<mozilla::dom::ImageTracker> mImageTracker;
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Mode mModeFlags;
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bool mResolved;
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};
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MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(nsStyleImageRequest::Mode)
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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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struct CachedBorderImageData
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{
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// Caller are expected to ensure that the value of aSVGViewportSize is
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// different from the cached one since the method won't do the check.
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void SetCachedSVGViewportSize(const mozilla::Maybe<nsSize>& aSVGViewportSize);
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const mozilla::Maybe<nsSize>& GetCachedSVGViewportSize();
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void PurgeCachedImages();
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void SetSubImage(uint8_t aIndex, imgIContainer* aSubImage);
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imgIContainer* GetSubImage(uint8_t aIndex);
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private:
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// If this is a SVG border-image, we save the size of the SVG viewport that
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// we used when rasterizing any cached border-image subimages. (The viewport
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// size matters for percent-valued sizes & positions in inner SVG doc).
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mozilla::Maybe<nsSize> mCachedSVGViewportSize;
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nsCOMArray<imgIContainer> mSubImages;
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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 SetImageRequest(already_AddRefed<nsStyleImageRequest> aImage);
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void SetGradientData(nsStyleGradient* aGradient);
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void SetElementId(const char16_t* aElementId);
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void SetCropRect(mozilla::UniquePtr<nsStyleSides> aCropRect);
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void ResolveImage(nsPresContext* aContext) {
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MOZ_ASSERT(mType != eStyleImageType_Image || mImage);
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if (mType == eStyleImageType_Image && !mImage->IsResolved()) {
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mImage->Resolve(aContext);
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}
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}
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nsStyleImageType GetType() const {
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return mType;
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}
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nsStyleImageRequest* GetImageRequest() const {
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MOZ_ASSERT(mType == eStyleImageType_Image, "Data is not an image!");
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MOZ_ASSERT(mImage);
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return mImage;
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}
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imgRequestProxy* GetImageData() const {
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return GetImageRequest()->get();
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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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const mozilla::UniquePtr<nsStyleSides>& GetCropRect() const {
|
|
NS_ASSERTION(mType == eStyleImageType_Image,
|
|
"Only image data can have a crop rect");
|
|
return mCropRect;
|
|
}
|
|
|
|
/**
|
|
* Compute the actual crop rect in pixels, using the source image bounds.
|
|
* The computation involves converting percentage unit to pixel unit and
|
|
* clamping each side value to fit in the source image bounds.
|
|
* @param aActualCropRect the computed actual crop rect.
|
|
* @param aIsEntireImage true iff |aActualCropRect| is identical to the
|
|
* source image bounds.
|
|
* @return true iff |aActualCropRect| holds a meaningful value.
|
|
*/
|
|
bool ComputeActualCropRect(nsIntRect& aActualCropRect,
|
|
bool* aIsEntireImage = nullptr) const;
|
|
|
|
/**
|
|
* Starts the decoding of a image. Returns true if the current frame of the
|
|
* image is complete. The return value is intended to be used instead of
|
|
* IsComplete because IsComplete may not be up to date if notifications
|
|
* from decoding are pending because they are being sent async.
|
|
*/
|
|
bool StartDecoding() const;
|
|
/**
|
|
* @return true if the item is definitely opaque --- i.e., paints every
|
|
* pixel within its bounds opaquely, and the bounds contains at least a pixel.
|
|
*/
|
|
bool IsOpaque() const;
|
|
/**
|
|
* @return true if this image is fully loaded, and its size is calculated;
|
|
* always returns true if |mType| is |eStyleImageType_Gradient| or
|
|
* |eStyleImageType_Element|.
|
|
*/
|
|
bool IsComplete() const;
|
|
/**
|
|
* @return true if this image is loaded without error;
|
|
* always returns true if |mType| is |eStyleImageType_Gradient| or
|
|
* |eStyleImageType_Element|.
|
|
*/
|
|
bool IsLoaded() const;
|
|
/**
|
|
* @return true if it is 100% confident that this image contains no pixel
|
|
* to draw.
|
|
*/
|
|
bool IsEmpty() const {
|
|
// There are some other cases when the image will be empty, for example
|
|
// when the crop rect is empty. However, checking the emptiness of crop
|
|
// rect is non-trivial since each side value can be specified with
|
|
// percentage unit, which can not be evaluated until the source image size
|
|
// is available. Therefore, we currently postpone the evaluation of crop
|
|
// rect until the actual rendering time --- alternatively until GetOpaqueRegion()
|
|
// is called.
|
|
return mType == eStyleImageType_Null;
|
|
}
|
|
|
|
bool operator==(const nsStyleImage& aOther) const;
|
|
bool operator!=(const nsStyleImage& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
bool ImageDataEquals(const nsStyleImage& aOther) const
|
|
{
|
|
return GetType() == eStyleImageType_Image &&
|
|
aOther.GetType() == eStyleImageType_Image &&
|
|
GetImageData() == aOther.GetImageData();
|
|
}
|
|
|
|
// These methods are used for the caller to caches the sub images created
|
|
// during a border-image paint operation
|
|
inline void SetSubImage(uint8_t aIndex, imgIContainer* aSubImage) const;
|
|
inline imgIContainer* GetSubImage(uint8_t aIndex) const;
|
|
void PurgeCacheForViewportChange(
|
|
const mozilla::Maybe<nsSize>& aSVGViewportSize,
|
|
const bool aHasIntrinsicRatio) const;
|
|
|
|
private:
|
|
void DoCopy(const nsStyleImage& aOther);
|
|
void EnsureCachedBIData() const;
|
|
|
|
// This variable keeps some cache data for border image and is lazily
|
|
// allocated since it is only used in border image case.
|
|
mozilla::UniquePtr<CachedBorderImageData> mCachedBIData;
|
|
|
|
nsStyleImageType mType;
|
|
union {
|
|
nsStyleImageRequest* mImage;
|
|
nsStyleGradient* mGradient;
|
|
char16_t* mElementId;
|
|
};
|
|
|
|
// This is _currently_ used only in conjunction with eStyleImageType_Image.
|
|
mozilla::UniquePtr<nsStyleSides> mCropRect;
|
|
};
|
|
|
|
struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleColor
|
|
{
|
|
explicit nsStyleColor(const nsPresContext* aContext);
|
|
nsStyleColor(const nsStyleColor& aOther);
|
|
~nsStyleColor() {
|
|
MOZ_COUNT_DTOR(nsStyleColor);
|
|
}
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
nscolor CalcComplexColor(const mozilla::StyleComplexColor& aColor) const {
|
|
return mozilla::LinearBlendColors(aColor.mColor, mColor,
|
|
aColor.mForegroundRatio);
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleColor& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_RepaintFrame;
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants at all.
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
void* operator new(size_t sz, nsStyleColor* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleColor, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleColor();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleColor, this);
|
|
}
|
|
|
|
// Don't add ANY members to this struct! We can achieve caching in the rule
|
|
// tree (rather than the style tree) by letting color stay by itself! -dwh
|
|
nscolor mColor; // [inherited]
|
|
};
|
|
|
|
/**
|
|
* An array of objects, similar to AutoTArray<T,1> but which is memmovable. It
|
|
* always has length >= 1.
|
|
*/
|
|
template<typename T>
|
|
class nsStyleAutoArray
|
|
{
|
|
public:
|
|
// This constructor places a single element in mFirstElement.
|
|
enum WithSingleInitialElement { WITH_SINGLE_INITIAL_ELEMENT };
|
|
explicit nsStyleAutoArray(WithSingleInitialElement) {}
|
|
nsStyleAutoArray(const nsStyleAutoArray& aOther) { *this = aOther; }
|
|
nsStyleAutoArray& operator=(const nsStyleAutoArray& aOther) {
|
|
mFirstElement = aOther.mFirstElement;
|
|
mOtherElements = aOther.mOtherElements;
|
|
return *this;
|
|
}
|
|
|
|
bool operator==(const nsStyleAutoArray& aOther) const {
|
|
return Length() == aOther.Length() &&
|
|
mFirstElement == aOther.mFirstElement &&
|
|
mOtherElements == aOther.mOtherElements;
|
|
}
|
|
bool operator!=(const nsStyleAutoArray& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
nsStyleAutoArray& operator=(nsStyleAutoArray&& aOther) {
|
|
mFirstElement = aOther.mFirstElement;
|
|
mOtherElements.SwapElements(aOther.mOtherElements);
|
|
|
|
return *this;
|
|
}
|
|
|
|
size_t Length() const {
|
|
return mOtherElements.Length() + 1;
|
|
}
|
|
const T& operator[](size_t aIndex) const {
|
|
return aIndex == 0 ? mFirstElement : mOtherElements[aIndex - 1];
|
|
}
|
|
T& operator[](size_t aIndex) {
|
|
return aIndex == 0 ? mFirstElement : mOtherElements[aIndex - 1];
|
|
}
|
|
|
|
void EnsureLengthAtLeast(size_t aMinLen) {
|
|
if (aMinLen > 0) {
|
|
mOtherElements.EnsureLengthAtLeast(aMinLen - 1);
|
|
}
|
|
}
|
|
|
|
void SetLengthNonZero(size_t aNewLen) {
|
|
MOZ_ASSERT(aNewLen > 0);
|
|
mOtherElements.SetLength(aNewLen - 1);
|
|
}
|
|
|
|
void TruncateLengthNonZero(size_t aNewLen) {
|
|
MOZ_ASSERT(aNewLen > 0);
|
|
MOZ_ASSERT(aNewLen <= Length());
|
|
mOtherElements.TruncateLength(aNewLen - 1);
|
|
}
|
|
|
|
private:
|
|
T mFirstElement;
|
|
nsTArray<T> mOtherElements;
|
|
};
|
|
|
|
struct nsStyleImageLayers {
|
|
// Indices into kBackgroundLayerTable and kMaskLayerTable
|
|
enum {
|
|
shorthand = 0,
|
|
color,
|
|
image,
|
|
repeat,
|
|
positionX,
|
|
positionY,
|
|
clip,
|
|
origin,
|
|
size,
|
|
attachment,
|
|
maskMode,
|
|
composite
|
|
};
|
|
|
|
enum class LayerType : uint8_t {
|
|
Background = 0,
|
|
Mask
|
|
};
|
|
|
|
explicit nsStyleImageLayers(LayerType aType);
|
|
nsStyleImageLayers(const nsStyleImageLayers &aSource);
|
|
~nsStyleImageLayers() {
|
|
MOZ_COUNT_DTOR(nsStyleImageLayers);
|
|
}
|
|
|
|
static bool IsInitialPositionForLayerType(mozilla::Position aPosition, LayerType aType);
|
|
|
|
struct Size;
|
|
friend struct Size;
|
|
struct Size {
|
|
struct Dimension : public nsStyleCoord::CalcValue {
|
|
nscoord ResolveLengthPercentage(nscoord aAvailable) const {
|
|
double d = double(mPercent) * double(aAvailable) + double(mLength);
|
|
if (d < 0.0) {
|
|
return 0;
|
|
}
|
|
return NSToCoordRoundWithClamp(float(d));
|
|
}
|
|
};
|
|
Dimension mWidth, mHeight;
|
|
|
|
bool IsInitialValue() const {
|
|
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;
|
|
}
|
|
|
|
bool DependsOnPositioningAreaSize() const {
|
|
return mXRepeat == NS_STYLE_IMAGELAYER_REPEAT_SPACE ||
|
|
mYRepeat == NS_STYLE_IMAGELAYER_REPEAT_SPACE;
|
|
}
|
|
|
|
// Initialize to initial values
|
|
void SetInitialValues() {
|
|
mXRepeat = NS_STYLE_IMAGELAYER_REPEAT_REPEAT;
|
|
mYRepeat = NS_STYLE_IMAGELAYER_REPEAT_REPEAT;
|
|
}
|
|
|
|
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 {
|
|
typedef mozilla::StyleGeometryBox StyleGeometryBox;
|
|
|
|
nsStyleImage mImage; // [reset]
|
|
RefPtr<mozilla::css::URLValueData> 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. (Might be a URLValue
|
|
// or an ImageValue.)
|
|
mozilla::Position mPosition; // [reset]
|
|
Size mSize; // [reset]
|
|
StyleGeometryBox mClip; // [reset] See nsStyleConsts.h
|
|
MOZ_INIT_OUTSIDE_CTOR
|
|
StyleGeometryBox 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_MATCH_SOURCE.
|
|
Repeat mRepeat; // [reset] See nsStyleConsts.h
|
|
|
|
// This constructor does not initialize mRepeat or mOrigin and Initialize()
|
|
// must be called to do that.
|
|
Layer();
|
|
~Layer();
|
|
|
|
// Initialize mRepeat and mOrigin by specified layer type
|
|
void Initialize(LayerType aType);
|
|
|
|
void ResolveImage(nsPresContext* aContext) {
|
|
if (mImage.GetType() == eStyleImageType_Image) {
|
|
mImage.ResolveImage(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& aNewLayer) 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,
|
|
mPositionXCount,
|
|
mPositionYCount,
|
|
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.
|
|
nsStyleAutoArray<Layer> mLayers;
|
|
|
|
const Layer& BottomLayer() const { return mLayers[mImageCount - 1]; }
|
|
|
|
void ResolveImages(nsPresContext* aContext) {
|
|
for (uint32_t i = 0; i < mImageCount; ++i) {
|
|
mLayers[i].ResolveImage(aContext);
|
|
}
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleImageLayers& aNewLayers,
|
|
nsStyleImageLayers::LayerType aType) const;
|
|
|
|
bool HasLayerWithImage() const;
|
|
nsStyleImageLayers& operator=(const nsStyleImageLayers& aOther);
|
|
nsStyleImageLayers& operator=(nsStyleImageLayers&& aOther);
|
|
bool operator==(const nsStyleImageLayers& aOther) const;
|
|
|
|
static const nsCSSPropertyID kBackgroundLayerTable[];
|
|
static const nsCSSPropertyID 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 MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleBackground {
|
|
explicit nsStyleBackground(const nsPresContext* aContext);
|
|
nsStyleBackground(const nsStyleBackground& aOther);
|
|
~nsStyleBackground();
|
|
|
|
// Resolves and tracks the images in mImage. Only called with a Servo-backed
|
|
// style system, where those images must be resolved later than the OMT
|
|
// nsStyleBackground constructor call.
|
|
void FinishStyle(nsPresContext* aPresContext);
|
|
|
|
void* operator new(size_t sz, nsStyleBackground* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleBackground, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext);
|
|
|
|
nsChangeHint CalcDifference(const nsStyleBackground& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_UpdateEffects |
|
|
nsChangeHint_RepaintFrame |
|
|
nsChangeHint_UpdateBackgroundPosition |
|
|
nsChangeHint_NeutralChange;
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants at all.
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
// Return the background color as nscolor.
|
|
nscolor BackgroundColor(const nsIFrame* aFrame) const;
|
|
nscolor BackgroundColor(nsStyleContext* aContext) const;
|
|
|
|
// True if this background is completely transparent.
|
|
bool IsTransparent(const nsIFrame* aFrame) const;
|
|
bool IsTransparent(nsStyleContext* aContext) 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(nsIFrame* aFrame) const;
|
|
|
|
// Checks to see if this has a non-empty image with "local" attachment.
|
|
// This is defined in nsStyleStructInlines.h.
|
|
inline bool HasLocalBackground() const;
|
|
|
|
const nsStyleImageLayers::Layer& BottomLayer() const { return mImage.BottomLayer(); }
|
|
|
|
nsStyleImageLayers mImage;
|
|
mozilla::StyleComplexColor mBackgroundColor; // [reset]
|
|
};
|
|
|
|
#define NS_SPACING_MARGIN 0
|
|
#define NS_SPACING_PADDING 1
|
|
#define NS_SPACING_BORDER 2
|
|
|
|
|
|
struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleMargin
|
|
{
|
|
explicit nsStyleMargin(const nsPresContext* aContext);
|
|
nsStyleMargin(const nsStyleMargin& aMargin);
|
|
~nsStyleMargin() {
|
|
MOZ_COUNT_DTOR(nsStyleMargin);
|
|
}
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStyleMargin* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleMargin, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext);
|
|
|
|
nsChangeHint CalcDifference(const nsStyleMargin& aNewData) 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);
|
|
}
|
|
|
|
bool GetMargin(nsMargin& aMargin) const
|
|
{
|
|
if (!mMargin.ConvertsToLength()) {
|
|
return false;
|
|
}
|
|
|
|
NS_FOR_CSS_SIDES(side) {
|
|
aMargin.Side(side) = mMargin.ToLength(side);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// Return true if either the start or end side in the axis is 'auto'.
|
|
// (defined in WritingModes.h since we need the full WritingMode type)
|
|
inline bool HasBlockAxisAuto(mozilla::WritingMode aWM) const;
|
|
inline bool HasInlineAxisAuto(mozilla::WritingMode aWM) const;
|
|
|
|
nsStyleSides mMargin; // [reset] coord, percent, calc, auto
|
|
};
|
|
|
|
struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStylePadding
|
|
{
|
|
explicit nsStylePadding(const nsPresContext* aContext);
|
|
nsStylePadding(const nsStylePadding& aPadding);
|
|
~nsStylePadding() {
|
|
MOZ_COUNT_DTOR(nsStylePadding);
|
|
}
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStylePadding* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStylePadding, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext);
|
|
|
|
nsChangeHint CalcDifference(const nsStylePadding& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return 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 !mPadding.ConvertsToLength();
|
|
}
|
|
|
|
bool GetPadding(nsMargin& aPadding) const
|
|
{
|
|
if (!mPadding.ConvertsToLength()) {
|
|
return false;
|
|
}
|
|
|
|
NS_FOR_CSS_SIDES(side) {
|
|
// Clamp negative calc() to 0.
|
|
aPadding.Side(side) = std::max(mPadding.ToLength(side), 0);
|
|
}
|
|
return true;
|
|
}
|
|
};
|
|
|
|
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)
|
|
{
|
|
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() {
|
|
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_THREADSAFE_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 MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleBorder
|
|
{
|
|
explicit nsStyleBorder(const nsPresContext* aContext);
|
|
nsStyleBorder(const nsStyleBorder& aBorder);
|
|
~nsStyleBorder();
|
|
|
|
// Resolves and tracks mBorderImageSource. Only called with a Servo-backed
|
|
// style system, where those images must be resolved later than the OMT
|
|
// nsStyleBorder constructor call.
|
|
void FinishStyle(nsPresContext* aPresContext);
|
|
|
|
void* operator new(size_t sz, nsStyleBorder* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleBorder, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext);
|
|
|
|
nsChangeHint CalcDifference(const nsStyleBorder& aNewData) 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::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::Side aSide) const
|
|
{
|
|
return IsVisibleBorderStyle(mBorderStyle[aSide]);
|
|
}
|
|
|
|
// aBorderWidth is in twips
|
|
void SetBorderWidth(mozilla::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::Side aSide) const
|
|
{
|
|
return GetComputedBorder().Side(aSide);
|
|
}
|
|
|
|
uint8_t GetBorderStyle(mozilla::Side aSide) const
|
|
{
|
|
NS_ASSERTION(aSide <= mozilla::eSideLeft, "bad side");
|
|
return mBorderStyle[aSide];
|
|
}
|
|
|
|
void SetBorderStyle(mozilla::Side aSide, uint8_t aStyle)
|
|
{
|
|
NS_ASSERTION(aSide <= mozilla::eSideLeft, "bad side");
|
|
mBorderStyle[aSide] = aStyle;
|
|
mComputedBorder.Side(aSide) =
|
|
(HasVisibleStyle(aSide) ? mBorder.Side(aSide) : 0);
|
|
}
|
|
|
|
inline bool IsBorderImageLoaded() const
|
|
{
|
|
return mBorderImageSource.IsLoaded();
|
|
}
|
|
|
|
void ResolveImage(nsPresContext* aContext)
|
|
{
|
|
if (mBorderImageSource.GetType() == eStyleImageType_Image) {
|
|
mBorderImageSource.ResolveImage(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;
|
|
}
|
|
}
|
|
|
|
imgIRequest* GetBorderImageRequest() const
|
|
{
|
|
if (mBorderImageSource.GetType() == eStyleImageType_Image) {
|
|
return mBorderImageSource.GetImageData();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
public:
|
|
nsBorderColors** mBorderColors; // [reset] composite (stripe) colors
|
|
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]
|
|
mozilla::StyleFloatEdge mFloatEdge; // [reset]
|
|
mozilla::StyleBoxDecorationBreak mBoxDecorationBreak; // [reset]
|
|
|
|
protected:
|
|
uint8_t mBorderStyle[4]; // [reset] See nsStyleConsts.h
|
|
|
|
public:
|
|
// [reset] the colors to use for a simple border.
|
|
// not used for -moz-border-colors
|
|
union {
|
|
struct {
|
|
mozilla::StyleComplexColor mBorderTopColor;
|
|
mozilla::StyleComplexColor mBorderRightColor;
|
|
mozilla::StyleComplexColor mBorderBottomColor;
|
|
mozilla::StyleComplexColor mBorderLeftColor;
|
|
};
|
|
mozilla::StyleComplexColor mBorderColor[4];
|
|
};
|
|
|
|
static mozilla::StyleComplexColor nsStyleBorder::*
|
|
BorderColorFieldFor(mozilla::Side aSide) {
|
|
switch (aSide) {
|
|
case mozilla::eSideTop:
|
|
return &nsStyleBorder::mBorderTopColor;
|
|
case mozilla::eSideRight:
|
|
return &nsStyleBorder::mBorderRightColor;
|
|
case mozilla::eSideBottom:
|
|
return &nsStyleBorder::mBorderBottomColor;
|
|
case mozilla::eSideLeft:
|
|
return &nsStyleBorder::mBorderLeftColor;
|
|
}
|
|
MOZ_ASSERT_UNREACHABLE("Unknown side");
|
|
return nullptr;
|
|
}
|
|
|
|
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;
|
|
|
|
private:
|
|
nscoord mTwipsPerPixel;
|
|
|
|
nsStyleBorder& operator=(const nsStyleBorder& aOther) = delete;
|
|
};
|
|
|
|
#define ASSERT_BORDER_COLOR_FIELD(side_) \
|
|
static_assert(offsetof(nsStyleBorder, mBorder##side_##Color) == \
|
|
offsetof(nsStyleBorder, mBorderColor) + \
|
|
size_t(mozilla::eSide##side_) * \
|
|
sizeof(mozilla::StyleComplexColor), \
|
|
"mBorder" #side_ "Color must be at same offset " \
|
|
"as mBorderColor[mozilla::eSide" #side_ "]")
|
|
ASSERT_BORDER_COLOR_FIELD(Top);
|
|
ASSERT_BORDER_COLOR_FIELD(Right);
|
|
ASSERT_BORDER_COLOR_FIELD(Bottom);
|
|
ASSERT_BORDER_COLOR_FIELD(Left);
|
|
#undef ASSERT_BORDER_COLOR_FIELD
|
|
|
|
|
|
struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleOutline
|
|
{
|
|
explicit nsStyleOutline(const nsPresContext* aContext);
|
|
nsStyleOutline(const nsStyleOutline& aOutline);
|
|
~nsStyleOutline() {
|
|
MOZ_COUNT_DTOR(nsStyleOutline);
|
|
}
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStyleOutline* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleOutline, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleOutline();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleOutline, this);
|
|
}
|
|
|
|
void RecalcData();
|
|
nsChangeHint CalcDifference(const nsStyleOutline& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_UpdateOverflow |
|
|
nsChangeHint_SchedulePaint |
|
|
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
|
|
|
|
// This is the specified value of outline-width, but with length values
|
|
// computed to absolute. mActualOutlineWidth stores the outline-width
|
|
// value used by layout. (We must store mOutlineWidth for the same
|
|
// style struct resolution reasons that we do nsStyleBorder::mBorder;
|
|
// see that field's comment.)
|
|
nscoord mOutlineWidth; // [reset] coord, enum (see nsStyleConsts.h)
|
|
nscoord mOutlineOffset; // [reset]
|
|
mozilla::StyleComplexColor mOutlineColor; // [reset]
|
|
uint8_t mOutlineStyle; // [reset] See nsStyleConsts.h
|
|
|
|
nscoord GetOutlineWidth() const
|
|
{
|
|
return mActualOutlineWidth;
|
|
}
|
|
|
|
protected:
|
|
// The actual value of outline-width is the computed value (an absolute
|
|
// length, forced to zero when outline-style is none) rounded to device
|
|
// pixels. This is the value used by layout.
|
|
nscoord mActualOutlineWidth;
|
|
nscoord mTwipsPerPixel;
|
|
};
|
|
|
|
|
|
/**
|
|
* An object that allows sharing of arrays that store 'quotes' property
|
|
* values. This is particularly important for inheritance, where we want
|
|
* to share the same 'quotes' value with a parent style context.
|
|
*/
|
|
class nsStyleQuoteValues
|
|
{
|
|
public:
|
|
typedef nsTArray<std::pair<nsString, nsString>> QuotePairArray;
|
|
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(nsStyleQuoteValues);
|
|
QuotePairArray mQuotePairs;
|
|
|
|
private:
|
|
~nsStyleQuoteValues() {}
|
|
};
|
|
|
|
struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleList
|
|
{
|
|
explicit nsStyleList(const nsPresContext* aContext);
|
|
nsStyleList(const nsStyleList& aStyleList);
|
|
~nsStyleList();
|
|
|
|
void FinishStyle(nsPresContext* aPresContext);
|
|
|
|
void* operator new(size_t sz, nsStyleList* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
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& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_ReconstructFrame |
|
|
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;
|
|
}
|
|
|
|
static void Shutdown() {
|
|
sInitialQuotes = nullptr;
|
|
sNoneQuotes = nullptr;
|
|
}
|
|
|
|
imgRequestProxy* GetListStyleImage() const
|
|
{
|
|
return mListStyleImage ? mListStyleImage->get() : nullptr;
|
|
}
|
|
|
|
void GetListStyleType(nsSubstring& aType) const { mCounterStyle->GetStyleName(aType); }
|
|
mozilla::CounterStyle* GetCounterStyle() const
|
|
{
|
|
return mCounterStyle.get();
|
|
}
|
|
void SetCounterStyle(mozilla::CounterStyle* aStyle)
|
|
{
|
|
// NB: This function is called off-main-thread during parallel restyle, but
|
|
// only with builtin styles that use dummy refcounting.
|
|
MOZ_ASSERT(NS_IsMainThread() || !aStyle->IsDependentStyle());
|
|
mCounterStyle = aStyle;
|
|
}
|
|
void SetListStyleType(const nsSubstring& aType,
|
|
nsPresContext* aPresContext)
|
|
{
|
|
SetCounterStyle(aPresContext->CounterStyleManager()->BuildCounterStyle(aType));
|
|
}
|
|
|
|
const nsStyleQuoteValues::QuotePairArray& GetQuotePairs() const;
|
|
|
|
void SetQuotesInherit(const nsStyleList* aOther);
|
|
void SetQuotesInitial();
|
|
void SetQuotesNone();
|
|
void SetQuotes(nsStyleQuoteValues::QuotePairArray&& aValues);
|
|
|
|
uint8_t mListStylePosition; // [inherited]
|
|
RefPtr<nsStyleImageRequest> mListStyleImage; // [inherited]
|
|
private:
|
|
RefPtr<mozilla::CounterStyle> mCounterStyle; // [inherited]
|
|
RefPtr<nsStyleQuoteValues> mQuotes; // [inherited]
|
|
nsStyleList& operator=(const nsStyleList& aOther) = delete;
|
|
public:
|
|
nsRect mImageRegion; // [inherited] the rect to use within an image
|
|
|
|
private:
|
|
// nsStyleQuoteValues objects representing two common values, for sharing.
|
|
static mozilla::StaticRefPtr<nsStyleQuoteValues> sInitialQuotes;
|
|
static mozilla::StaticRefPtr<nsStyleQuoteValues> sNoneQuotes;
|
|
};
|
|
|
|
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.
|
|
|
|
// These are the limits that we choose to clamp grid line numbers to.
|
|
// http://dev.w3.org/csswg/css-grid/#overlarge-grids
|
|
// mInteger is clamped to this range:
|
|
static const int32_t kMinLine = -10000;
|
|
static const int32_t kMaxLine = 10000;
|
|
|
|
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.
|
|
// A 'fit-content(size)' <track-size> is represented as eStyleUnit_None
|
|
// in the min sizing function and 'size' in the max sizing function.
|
|
//
|
|
// 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 MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStylePosition
|
|
{
|
|
explicit nsStylePosition(const nsPresContext* aContext);
|
|
nsStylePosition(const nsStylePosition& aOther);
|
|
~nsStylePosition();
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStylePosition* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
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& aNewData,
|
|
const nsStyleVisibility* aOldStyleVisibility) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return NS_STYLE_HINT_REFLOW |
|
|
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);
|
|
}
|
|
|
|
/**
|
|
* Return the used value for 'align-self' given our parent StyleContext
|
|
* aParent (or null for the root).
|
|
*/
|
|
uint8_t UsedAlignSelf(nsStyleContext* aParent) const;
|
|
|
|
/**
|
|
* 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 used value for 'justify-self' given our parent StyleContext
|
|
* aParent (or null for the root).
|
|
*/
|
|
uint8_t UsedJustifySelf(nsStyleContext* aParent) const;
|
|
|
|
mozilla::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
|
|
|
|
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
|
|
private:
|
|
friend class nsRuleNode;
|
|
|
|
// mJustifyItems should only be read via ComputedJustifyItems(), which
|
|
// lazily resolves its "auto" value. nsRuleNode needs direct access so
|
|
// it can set mJustifyItems' value when populating this struct.
|
|
uint8_t mJustifyItems; // [reset] see nsStyleConsts.h
|
|
public:
|
|
uint8_t mJustifySelf; // [reset] see nsStyleConsts.h
|
|
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;
|
|
nsStyleCoord mGridColumnGap; // [reset] coord, percent, calc
|
|
nsStyleCoord mGridRowGap; // [reset] coord, percent, 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::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 MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleTextReset
|
|
{
|
|
explicit nsStyleTextReset(const nsPresContext* aContext);
|
|
nsStyleTextReset(const nsStyleTextReset& aOther);
|
|
~nsStyleTextReset();
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStyleTextReset* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleTextReset, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleTextReset();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleTextReset, this);
|
|
}
|
|
|
|
// Note the difference between this and
|
|
// nsStyleContext::HasTextDecorationLines.
|
|
bool HasTextDecorationLines() const {
|
|
return mTextDecorationLine != NS_STYLE_TEXT_DECORATION_LINE_NONE &&
|
|
mTextDecorationLine != NS_STYLE_TEXT_DECORATION_LINE_OVERRIDE_ALL;
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleTextReset& aNewData) 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;
|
|
}
|
|
|
|
nsStyleTextOverflow mTextOverflow; // [reset] enum, string
|
|
|
|
uint8_t mTextDecorationLine; // [reset] see nsStyleConsts.h
|
|
uint8_t mTextDecorationStyle; // [reset] see nsStyleConsts.h
|
|
uint8_t mUnicodeBidi; // [reset] see nsStyleConsts.h
|
|
nscoord mInitialLetterSink; // [reset] 0 means normal
|
|
float mInitialLetterSize; // [reset] 0.0f means normal
|
|
mozilla::StyleComplexColor mTextDecorationColor; // [reset]
|
|
};
|
|
|
|
struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleText
|
|
{
|
|
explicit nsStyleText(const nsPresContext* aContext);
|
|
nsStyleText(const nsStyleText& aOther);
|
|
~nsStyleText();
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStyleText* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
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& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_ReconstructFrame |
|
|
NS_STYLE_HINT_REFLOW |
|
|
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
|
|
uint8_t mTextTransform; // [inherited] see nsStyleConsts.h
|
|
uint8_t mWhiteSpace; // [inherited] see nsStyleConsts.h
|
|
uint8_t mWordBreak; // [inherited] see nsStyleConsts.h
|
|
uint8_t mOverflowWrap; // [inherited] see nsStyleConsts.h
|
|
mozilla::StyleHyphens 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
|
|
uint8_t mTextRendering; // [inherited] see nsStyleConsts.h
|
|
mozilla::StyleComplexColor mTextEmphasisColor; // [inherited]
|
|
mozilla::StyleComplexColor mWebkitTextFillColor; // [inherited]
|
|
mozilla::StyleComplexColor mWebkitTextStrokeColor; // [inherited]
|
|
|
|
nsStyleCoord mTabSize; // [inherited] coord, factor, calc
|
|
nsStyleCoord mWordSpacing; // [inherited] coord, percent, calc
|
|
nsStyleCoord mLetterSpacing; // [inherited] coord, normal
|
|
nsStyleCoord mLineHeight; // [inherited] coord, factor, normal
|
|
nsStyleCoord mTextIndent; // [inherited] coord, percent, calc
|
|
nscoord mWebkitTextStrokeWidth; // [inherited] coord
|
|
|
|
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() &&
|
|
mOverflowWrap == NS_STYLE_OVERFLOWWRAP_BREAK_WORD;
|
|
}
|
|
|
|
bool HasTextEmphasis() const {
|
|
return !mTextEmphasisStyleString.IsEmpty();
|
|
}
|
|
|
|
bool HasWebkitTextStroke() const {
|
|
return mWebkitTextStrokeWidth > 0;
|
|
}
|
|
|
|
// 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 MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleVisibility
|
|
{
|
|
explicit nsStyleVisibility(const nsPresContext* aContext);
|
|
nsStyleVisibility(const nsStyleVisibility& aVisibility);
|
|
~nsStyleVisibility() {
|
|
MOZ_COUNT_DTOR(nsStyleVisibility);
|
|
}
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStyleVisibility* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
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& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_ReconstructFrame |
|
|
NS_STYLE_HINT_REFLOW |
|
|
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;
|
|
}
|
|
|
|
nsStyleImageOrientation mImageOrientation; // [inherited]
|
|
uint8_t mDirection; // [inherited] see nsStyleConsts.h NS_STYLE_DIRECTION_*
|
|
uint8_t mVisible; // [inherited]
|
|
uint8_t mImageRendering; // [inherited] see nsStyleConsts.h
|
|
uint8_t mWritingMode; // [inherited] see nsStyleConsts.h
|
|
uint8_t mTextOrientation; // [inherited] see nsStyleConsts.h
|
|
uint8_t mColorAdjust; // [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));
|
|
}
|
|
};
|
|
|
|
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()
|
|
};
|
|
|
|
// 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)
|
|
: mType(aType)
|
|
{
|
|
MOZ_ASSERT(mType == Type::StepStart || mType == Type::StepEnd,
|
|
"wrong type");
|
|
mSteps = aSteps;
|
|
}
|
|
|
|
nsTimingFunction(const nsTimingFunction& aOther)
|
|
{
|
|
*this = aOther;
|
|
}
|
|
|
|
Type mType;
|
|
union {
|
|
struct {
|
|
float mX1;
|
|
float mY1;
|
|
float mX2;
|
|
float mY2;
|
|
} mFunc;
|
|
struct {
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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; }
|
|
nsCSSPropertyID 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(nsCSSPropertyID aProperty)
|
|
{
|
|
NS_ASSERTION(aProperty != eCSSProperty_UNKNOWN &&
|
|
aProperty != eCSSPropertyExtra_variable,
|
|
"invalid property");
|
|
mProperty = aProperty;
|
|
}
|
|
void SetUnknownProperty(nsCSSPropertyID 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;
|
|
nsCSSPropertyID 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
|
|
};
|
|
|
|
class StyleBasicShape final
|
|
{
|
|
public:
|
|
explicit StyleBasicShape(StyleBasicShapeType type)
|
|
: mType(type),
|
|
mFillRule(StyleFillRule::Nonzero)
|
|
{
|
|
mPosition.SetInitialPercentValues(0.5f);
|
|
}
|
|
|
|
StyleBasicShapeType GetShapeType() const { return mType; }
|
|
nsCSSKeyword GetShapeTypeName() const;
|
|
|
|
StyleFillRule GetFillRule() const { return mFillRule; }
|
|
void SetFillRule(StyleFillRule aFillRule)
|
|
{
|
|
MOZ_ASSERT(mType == StyleBasicShapeType::Polygon, "expected polygon");
|
|
mFillRule = aFillRule;
|
|
}
|
|
|
|
Position& GetPosition() {
|
|
MOZ_ASSERT(mType == StyleBasicShapeType::Circle ||
|
|
mType == StyleBasicShapeType::Ellipse,
|
|
"expected circle or ellipse");
|
|
return mPosition;
|
|
}
|
|
const Position& GetPosition() const {
|
|
MOZ_ASSERT(mType == StyleBasicShapeType::Circle ||
|
|
mType == StyleBasicShapeType::Ellipse,
|
|
"expected circle or ellipse");
|
|
return mPosition;
|
|
}
|
|
|
|
bool HasRadius() const {
|
|
MOZ_ASSERT(mType == StyleBasicShapeType::Inset, "expected inset");
|
|
nsStyleCoord zero;
|
|
zero.SetCoordValue(0);
|
|
NS_FOR_CSS_HALF_CORNERS(corner) {
|
|
if (mRadius.Get(corner) != zero) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
nsStyleCorners& GetRadius() {
|
|
MOZ_ASSERT(mType == StyleBasicShapeType::Inset, "expected inset");
|
|
return mRadius;
|
|
}
|
|
const nsStyleCorners& GetRadius() const {
|
|
MOZ_ASSERT(mType == StyleBasicShapeType::Inset, "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 StyleBasicShape& aOther) const
|
|
{
|
|
return mType == aOther.mType &&
|
|
mFillRule == aOther.mFillRule &&
|
|
mCoordinates == aOther.mCoordinates &&
|
|
mPosition == aOther.mPosition &&
|
|
mRadius == aOther.mRadius;
|
|
}
|
|
bool operator!=(const StyleBasicShape& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(StyleBasicShape);
|
|
|
|
private:
|
|
~StyleBasicShape() {}
|
|
|
|
StyleBasicShapeType mType;
|
|
StyleFillRule mFillRule;
|
|
|
|
// mCoordinates has coordinates for polygon or radii for
|
|
// ellipse and circle.
|
|
// (top, right, bottom, left) for inset
|
|
nsTArray<nsStyleCoord> mCoordinates;
|
|
// position of center for ellipse or circle
|
|
Position mPosition;
|
|
// corner radii for inset (0 if not set)
|
|
nsStyleCorners mRadius;
|
|
};
|
|
|
|
template<typename ReferenceBox>
|
|
struct StyleShapeSource
|
|
{
|
|
StyleShapeSource()
|
|
: mURL(nullptr)
|
|
{}
|
|
|
|
StyleShapeSource(const StyleShapeSource& aSource)
|
|
: StyleShapeSource()
|
|
{
|
|
if (aSource.mType == StyleShapeSourceType::URL) {
|
|
SetURL(aSource.mURL);
|
|
} else if (aSource.mType == StyleShapeSourceType::Shape) {
|
|
SetBasicShape(aSource.mBasicShape, aSource.mReferenceBox);
|
|
} else if (aSource.mType == StyleShapeSourceType::Box) {
|
|
SetReferenceBox(aSource.mReferenceBox);
|
|
}
|
|
}
|
|
|
|
~StyleShapeSource()
|
|
{
|
|
ReleaseRef();
|
|
}
|
|
|
|
StyleShapeSource& operator=(const StyleShapeSource& aOther)
|
|
{
|
|
if (this == &aOther) {
|
|
return *this;
|
|
}
|
|
|
|
if (aOther.mType == StyleShapeSourceType::URL) {
|
|
SetURL(aOther.mURL);
|
|
} else if (aOther.mType == StyleShapeSourceType::Shape) {
|
|
SetBasicShape(aOther.mBasicShape, aOther.mReferenceBox);
|
|
} else if (aOther.mType == StyleShapeSourceType::Box) {
|
|
SetReferenceBox(aOther.mReferenceBox);
|
|
} else {
|
|
ReleaseRef();
|
|
mReferenceBox = ReferenceBox::NoBox;
|
|
mType = StyleShapeSourceType::None;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
bool operator==(const StyleShapeSource& aOther) const
|
|
{
|
|
if (mType != aOther.mType) {
|
|
return false;
|
|
}
|
|
|
|
if (mType == StyleShapeSourceType::URL) {
|
|
return mURL->Equals(*aOther.mURL);
|
|
} else if (mType == StyleShapeSourceType::Shape) {
|
|
return *mBasicShape == *aOther.mBasicShape &&
|
|
mReferenceBox == aOther.mReferenceBox;
|
|
} else if (mType == StyleShapeSourceType::Box) {
|
|
return mReferenceBox == aOther.mReferenceBox;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool operator!=(const StyleShapeSource& aOther) const
|
|
{
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
StyleShapeSourceType GetType() const
|
|
{
|
|
return mType;
|
|
}
|
|
|
|
css::URLValue* GetURL() const
|
|
{
|
|
MOZ_ASSERT(mType == StyleShapeSourceType::URL, "Wrong shape source type!");
|
|
return mURL;
|
|
}
|
|
|
|
bool SetURL(css::URLValue* aValue)
|
|
{
|
|
MOZ_ASSERT(aValue);
|
|
ReleaseRef();
|
|
mURL = aValue;
|
|
mURL->AddRef();
|
|
mType = StyleShapeSourceType::URL;
|
|
return true;
|
|
}
|
|
|
|
StyleBasicShape* GetBasicShape() const
|
|
{
|
|
MOZ_ASSERT(mType == StyleShapeSourceType::Shape, "Wrong shape source type!");
|
|
return mBasicShape;
|
|
}
|
|
|
|
void SetBasicShape(StyleBasicShape* aBasicShape,
|
|
ReferenceBox aReferenceBox)
|
|
{
|
|
NS_ASSERTION(aBasicShape, "expected pointer");
|
|
ReleaseRef();
|
|
mBasicShape = aBasicShape;
|
|
mBasicShape->AddRef();
|
|
mReferenceBox = aReferenceBox;
|
|
mType = StyleShapeSourceType::Shape;
|
|
}
|
|
|
|
ReferenceBox GetReferenceBox() const
|
|
{
|
|
MOZ_ASSERT(mType == StyleShapeSourceType::Box ||
|
|
mType == StyleShapeSourceType::Shape,
|
|
"Wrong shape source type!");
|
|
return mReferenceBox;
|
|
}
|
|
|
|
void SetReferenceBox(ReferenceBox aReferenceBox)
|
|
{
|
|
ReleaseRef();
|
|
mReferenceBox = aReferenceBox;
|
|
mType = StyleShapeSourceType::Box;
|
|
}
|
|
|
|
private:
|
|
void ReleaseRef()
|
|
{
|
|
if (mType == StyleShapeSourceType::Shape) {
|
|
NS_ASSERTION(mBasicShape, "expected pointer");
|
|
mBasicShape->Release();
|
|
} else if (mType == StyleShapeSourceType::URL) {
|
|
NS_ASSERTION(mURL, "expected pointer");
|
|
mURL->Release();
|
|
}
|
|
// Both mBasicShape and mURL are pointers in a union. Nulling one of them
|
|
// nulls both of them.
|
|
mURL = nullptr;
|
|
}
|
|
|
|
void* operator new(size_t) = delete;
|
|
|
|
union {
|
|
StyleBasicShape* mBasicShape;
|
|
css::URLValue* mURL;
|
|
};
|
|
StyleShapeSourceType mType = StyleShapeSourceType::None;
|
|
ReferenceBox mReferenceBox = ReferenceBox::NoBox;
|
|
};
|
|
|
|
using StyleClipPath = StyleShapeSource<StyleGeometryBox>;
|
|
using StyleShapeOutside = StyleShapeSource<StyleShapeOutsideShapeBox>;
|
|
|
|
} // namespace mozilla
|
|
|
|
struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleDisplay
|
|
{
|
|
explicit nsStyleDisplay(const nsPresContext* aContext);
|
|
nsStyleDisplay(const nsStyleDisplay& aOther);
|
|
~nsStyleDisplay() {
|
|
MOZ_COUNT_DTOR(nsStyleDisplay);
|
|
}
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStyleDisplay* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
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& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
// All the parts of FRAMECHANGE are present in CalcDifference.
|
|
return nsChangeHint(nsChangeHint_ReconstructFrame |
|
|
NS_STYLE_HINT_REFLOW |
|
|
nsChangeHint_UpdateTransformLayer |
|
|
nsChangeHint_UpdateOverflow |
|
|
nsChangeHint_UpdatePostTransformOverflow |
|
|
nsChangeHint_UpdateContainingBlock |
|
|
nsChangeHint_AddOrRemoveTransform |
|
|
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);
|
|
}
|
|
|
|
// We guarantee that if mBinding is non-null, so are mBinding->GetURI() and
|
|
// mBinding->mOriginPrincipal.
|
|
RefPtr<mozilla::css::URLValue> mBinding; // [reset]
|
|
mozilla::StyleDisplay mDisplay; // [reset] see nsStyleConsts.h StyleDisplay
|
|
mozilla::StyleDisplay 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
|
|
|
|
// [reset] See StyleFloat in nsStyleConsts.h.
|
|
mozilla::StyleFloat mFloat;
|
|
// [reset] Save mFloat for position:absolute/fixed; otherwise equal to mFloat.
|
|
mozilla::StyleFloat mOriginalFloat;
|
|
|
|
mozilla::StyleClear mBreakType; // [reset]
|
|
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
|
|
mozilla::StyleOrient mOrient; // [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.
|
|
nsTArray<nsString> 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]
|
|
mozilla::Position mScrollSnapDestination; // [reset]
|
|
nsTArray<mozilla::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
|
|
|
|
nsStyleCoord mVerticalAlign; // [reset] coord, percent, calc, enum (see nsStyleConsts.h)
|
|
|
|
nsStyleAutoArray<mozilla::StyleTransition> 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;
|
|
|
|
nsStyleAutoArray<mozilla::StyleAnimation> 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;
|
|
|
|
mozilla::StyleShapeOutside mShapeOutside; // [reset]
|
|
|
|
bool IsBlockInsideStyle() const {
|
|
return mozilla::StyleDisplay::Block == mDisplay ||
|
|
mozilla::StyleDisplay::ListItem == mDisplay ||
|
|
mozilla::StyleDisplay::InlineBlock == mDisplay ||
|
|
mozilla::StyleDisplay::TableCaption == mDisplay ||
|
|
mozilla::StyleDisplay::FlowRoot == 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 mozilla::StyleDisplay::Block == mDisplay ||
|
|
mozilla::StyleDisplay::Flex == mDisplay ||
|
|
mozilla::StyleDisplay::WebkitBox == mDisplay ||
|
|
mozilla::StyleDisplay::Grid == mDisplay ||
|
|
mozilla::StyleDisplay::ListItem == mDisplay ||
|
|
mozilla::StyleDisplay::Table == mDisplay ||
|
|
mozilla::StyleDisplay::FlowRoot == mDisplay;
|
|
}
|
|
|
|
static bool IsDisplayTypeInlineOutside(mozilla::StyleDisplay aDisplay) {
|
|
return mozilla::StyleDisplay::Inline == aDisplay ||
|
|
mozilla::StyleDisplay::InlineBlock == aDisplay ||
|
|
mozilla::StyleDisplay::InlineTable == aDisplay ||
|
|
mozilla::StyleDisplay::MozInlineBox == aDisplay ||
|
|
mozilla::StyleDisplay::InlineFlex == aDisplay ||
|
|
mozilla::StyleDisplay::WebkitInlineBox == aDisplay ||
|
|
mozilla::StyleDisplay::InlineGrid == aDisplay ||
|
|
mozilla::StyleDisplay::MozInlineGrid == aDisplay ||
|
|
mozilla::StyleDisplay::MozInlineStack == aDisplay ||
|
|
mozilla::StyleDisplay::Ruby == aDisplay ||
|
|
mozilla::StyleDisplay::RubyBase == aDisplay ||
|
|
mozilla::StyleDisplay::RubyBaseContainer == aDisplay ||
|
|
mozilla::StyleDisplay::RubyText == aDisplay ||
|
|
mozilla::StyleDisplay::RubyTextContainer == aDisplay ||
|
|
mozilla::StyleDisplay::Contents == aDisplay;
|
|
}
|
|
|
|
bool IsInlineOutsideStyle() const {
|
|
return IsDisplayTypeInlineOutside(mDisplay);
|
|
}
|
|
|
|
bool IsOriginalDisplayInlineOutsideStyle() const {
|
|
return IsDisplayTypeInlineOutside(mOriginalDisplay);
|
|
}
|
|
|
|
bool IsInnerTableStyle() const {
|
|
return mozilla::StyleDisplay::TableCaption == mDisplay ||
|
|
mozilla::StyleDisplay::TableCell == mDisplay ||
|
|
mozilla::StyleDisplay::TableRow == mDisplay ||
|
|
mozilla::StyleDisplay::TableRowGroup == mDisplay ||
|
|
mozilla::StyleDisplay::TableHeaderGroup == mDisplay ||
|
|
mozilla::StyleDisplay::TableFooterGroup == mDisplay ||
|
|
mozilla::StyleDisplay::TableColumn == mDisplay ||
|
|
mozilla::StyleDisplay::TableColumnGroup == mDisplay;
|
|
}
|
|
|
|
bool IsFloatingStyle() const {
|
|
return mozilla::StyleFloat::None != mFloat;
|
|
}
|
|
|
|
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(mozilla::StyleDisplay aDisplay) {
|
|
return mozilla::StyleDisplay::Ruby == aDisplay ||
|
|
mozilla::StyleDisplay::RubyBase == aDisplay ||
|
|
mozilla::StyleDisplay::RubyBaseContainer == aDisplay ||
|
|
mozilla::StyleDisplay::RubyText == aDisplay ||
|
|
mozilla::StyleDisplay::RubyTextContainer == aDisplay;
|
|
}
|
|
|
|
bool IsRubyDisplayType() const {
|
|
return IsRubyDisplayType(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 mozilla::StyleDisplay GetDisplay(const nsIFrame* aContextFrame) const;
|
|
inline bool IsFloating(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 whether the element is a containing block for its
|
|
* absolutely positioned descendants.
|
|
* aContextFrame is the frame for which this is the nsStyleDisplay.
|
|
*/
|
|
inline bool IsAbsPosContainingBlock(const nsIFrame* aContextFrame) const;
|
|
|
|
/**
|
|
* The same as IsAbsPosContainingBlock, except skipping the tests that
|
|
* are based on the frame rather than the style context (thus
|
|
* potentially returning a false positive).
|
|
*/
|
|
template<class StyleContextLike>
|
|
inline bool IsAbsPosContainingBlockForAppropriateFrame(
|
|
StyleContextLike* aStyleContext) const;
|
|
|
|
/**
|
|
* 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 nsStyleDisplay.
|
|
*/
|
|
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 nsStyleDisplay.
|
|
*/
|
|
inline bool IsFixedPosContainingBlock(const nsIFrame* aContextFrame) const;
|
|
|
|
/**
|
|
* The same as IsFixedPosContainingBlock, except skipping the tests that
|
|
* are based on the frame rather than the style context (thus
|
|
* potentially returning a false positive).
|
|
*/
|
|
template<class StyleContextLike>
|
|
inline bool IsFixedPosContainingBlockForAppropriateFrame(
|
|
StyleContextLike* aStyleContext) const;
|
|
|
|
private:
|
|
// Helpers for above functions, which do some but not all of the tests
|
|
// for them (since transform must be tested separately for each).
|
|
template<class StyleContextLike>
|
|
inline bool HasAbsPosContainingBlockStyleInternal(
|
|
StyleContextLike* aStyleContext) const;
|
|
template<class StyleContextLike>
|
|
inline bool HasFixedPosContainingBlockStyleInternal(
|
|
StyleContextLike* aStyleContext) const;
|
|
|
|
public:
|
|
// 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 mozilla::StyleFloat PhysicalFloats(mozilla::WritingMode aWM) const;
|
|
inline mozilla::StyleClear PhysicalBreakType(mozilla::WritingMode aWM) const;
|
|
};
|
|
|
|
struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleTable
|
|
{
|
|
explicit nsStyleTable(const nsPresContext* aContext);
|
|
nsStyleTable(const nsStyleTable& aOther);
|
|
~nsStyleTable();
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStyleTable* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
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& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_ReconstructFrame;
|
|
}
|
|
static nsChangeHint DifferenceAlwaysHandledForDescendants() {
|
|
// CalcDifference never returns the reflow hints that are sometimes
|
|
// handled for descendants as hints not handled for descendants.
|
|
return nsChangeHint(0);
|
|
}
|
|
|
|
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 MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleTableBorder
|
|
{
|
|
explicit nsStyleTableBorder(const nsPresContext* aContext);
|
|
nsStyleTableBorder(const nsStyleTableBorder& aOther);
|
|
~nsStyleTableBorder();
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStyleTableBorder* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
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& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_ReconstructFrame |
|
|
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;
|
|
}
|
|
|
|
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
|
|
};
|
|
|
|
class nsStyleContentData
|
|
{
|
|
public:
|
|
nsStyleContentData()
|
|
: mType(eStyleContentType_Uninitialized)
|
|
{
|
|
MOZ_COUNT_CTOR(nsStyleContentData);
|
|
mContent.mString = nullptr;
|
|
}
|
|
nsStyleContentData(const nsStyleContentData&);
|
|
|
|
~nsStyleContentData();
|
|
nsStyleContentData& operator=(const nsStyleContentData& aOther);
|
|
bool operator==(const nsStyleContentData& aOther) const;
|
|
|
|
bool operator!=(const nsStyleContentData& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
nsStyleContentType GetType() const { return mType; }
|
|
|
|
char16_t* GetString() const
|
|
{
|
|
MOZ_ASSERT(mType == eStyleContentType_String ||
|
|
mType == eStyleContentType_Attr);
|
|
return mContent.mString;
|
|
}
|
|
|
|
nsCSSValue::Array* GetCounters() const
|
|
{
|
|
MOZ_ASSERT(mType == eStyleContentType_Counter ||
|
|
mType == eStyleContentType_Counters);
|
|
return mContent.mCounters;
|
|
}
|
|
|
|
nsStyleImageRequest* GetImageRequest() const
|
|
{
|
|
MOZ_ASSERT(mType == eStyleContentType_Image);
|
|
return mContent.mImage;
|
|
}
|
|
|
|
imgRequestProxy* GetImage() const
|
|
{
|
|
return GetImageRequest()->get();
|
|
}
|
|
|
|
void SetKeyword(nsStyleContentType aType)
|
|
{
|
|
MOZ_ASSERT(aType == eStyleContentType_OpenQuote ||
|
|
aType == eStyleContentType_CloseQuote ||
|
|
aType == eStyleContentType_NoOpenQuote ||
|
|
aType == eStyleContentType_NoCloseQuote ||
|
|
aType == eStyleContentType_AltContent);
|
|
MOZ_ASSERT(mType == eStyleContentType_Uninitialized,
|
|
"should only initialize nsStyleContentData once");
|
|
mType = aType;
|
|
}
|
|
|
|
void SetString(nsStyleContentType aType, const char16_t* aString)
|
|
{
|
|
MOZ_ASSERT(aType == eStyleContentType_String ||
|
|
aType == eStyleContentType_Attr);
|
|
MOZ_ASSERT(aString);
|
|
MOZ_ASSERT(mType == eStyleContentType_Uninitialized,
|
|
"should only initialize nsStyleContentData once");
|
|
mType = aType;
|
|
mContent.mString = NS_strdup(aString);
|
|
}
|
|
|
|
void SetCounters(nsStyleContentType aType, nsCSSValue::Array* aCounters)
|
|
{
|
|
MOZ_ASSERT(aType == eStyleContentType_Counter ||
|
|
aType == eStyleContentType_Counters);
|
|
MOZ_ASSERT(aCounters);
|
|
MOZ_ASSERT(mType == eStyleContentType_Uninitialized,
|
|
"should only initialize nsStyleContentData once");
|
|
mType = aType;
|
|
mContent.mCounters = aCounters;
|
|
mContent.mCounters->AddRef();
|
|
}
|
|
|
|
void SetImageRequest(already_AddRefed<nsStyleImageRequest> aRequest)
|
|
{
|
|
MOZ_ASSERT(mType == eStyleContentType_Uninitialized,
|
|
"should only initialize nsStyleContentData once");
|
|
mType = eStyleContentType_Image;
|
|
mContent.mImage = aRequest.take();
|
|
MOZ_ASSERT(mContent.mImage);
|
|
}
|
|
|
|
private:
|
|
nsStyleContentType mType;
|
|
union {
|
|
char16_t *mString;
|
|
nsStyleImageRequest* mImage;
|
|
nsCSSValue::Array* mCounters;
|
|
} mContent;
|
|
};
|
|
|
|
struct nsStyleCounterData
|
|
{
|
|
nsString mCounter;
|
|
int32_t mValue;
|
|
|
|
bool operator==(const nsStyleCounterData& aOther) const {
|
|
return mValue == aOther.mValue && mCounter == aOther.mCounter;
|
|
}
|
|
|
|
bool operator!=(const nsStyleCounterData& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
};
|
|
|
|
struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleContent
|
|
{
|
|
explicit nsStyleContent(const nsPresContext* aContext);
|
|
nsStyleContent(const nsStyleContent& aContent);
|
|
~nsStyleContent();
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStyleContent* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleContent, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext);
|
|
|
|
nsChangeHint CalcDifference(const nsStyleContent& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_ReconstructFrame |
|
|
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;
|
|
}
|
|
|
|
uint32_t ContentCount() const { return mContents.Length(); } // [reset]
|
|
|
|
const nsStyleContentData& ContentAt(uint32_t aIndex) const {
|
|
return mContents[aIndex];
|
|
}
|
|
|
|
nsStyleContentData& ContentAt(uint32_t aIndex) { return mContents[aIndex]; }
|
|
|
|
void AllocateContents(uint32_t aCount) {
|
|
// We need to run the destructors of the elements of mContents, so we
|
|
// delete and reallocate even if aCount == mContentCount. (If
|
|
// nsStyleContentData had its members private and managed their
|
|
// ownership on setting, we wouldn't need this, but that seems
|
|
// unnecessary at this point.)
|
|
mContents.Clear();
|
|
mContents.SetLength(aCount);
|
|
}
|
|
|
|
uint32_t CounterIncrementCount() const { return mIncrements.Length(); } // [reset]
|
|
const nsStyleCounterData& CounterIncrementAt(uint32_t aIndex) const {
|
|
return mIncrements[aIndex];
|
|
}
|
|
|
|
void AllocateCounterIncrements(uint32_t aCount) {
|
|
mIncrements.Clear();
|
|
mIncrements.SetLength(aCount);
|
|
}
|
|
|
|
void SetCounterIncrementAt(uint32_t aIndex, const nsString& aCounter, int32_t aIncrement) {
|
|
mIncrements[aIndex].mCounter = aCounter;
|
|
mIncrements[aIndex].mValue = aIncrement;
|
|
}
|
|
|
|
uint32_t CounterResetCount() const { return mResets.Length(); } // [reset]
|
|
const nsStyleCounterData& CounterResetAt(uint32_t aIndex) const {
|
|
return mResets[aIndex];
|
|
}
|
|
|
|
void AllocateCounterResets(uint32_t aCount) {
|
|
mResets.Clear();
|
|
mResets.SetLength(aCount);
|
|
}
|
|
|
|
void SetCounterResetAt(uint32_t aIndex, const nsString& aCounter, int32_t aValue) {
|
|
mResets[aIndex].mCounter = aCounter;
|
|
mResets[aIndex].mValue = aValue;
|
|
}
|
|
|
|
protected:
|
|
nsTArray<nsStyleContentData> mContents;
|
|
nsTArray<nsStyleCounterData> mIncrements;
|
|
nsTArray<nsStyleCounterData> mResets;
|
|
};
|
|
|
|
struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleUIReset
|
|
{
|
|
explicit nsStyleUIReset(const nsPresContext* aContext);
|
|
nsStyleUIReset(const nsStyleUIReset& aOther);
|
|
~nsStyleUIReset();
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStyleUIReset* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
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& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_ReconstructFrame |
|
|
NS_STYLE_HINT_REFLOW |
|
|
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;
|
|
}
|
|
|
|
mozilla::StyleUserSelect mUserSelect; // [reset](selection-style)
|
|
uint8_t mForceBrokenImageIcon; // [reset] (0 if not forcing, otherwise forcing)
|
|
uint8_t mIMEMode; // [reset]
|
|
mozilla::StyleWindowDragging mWindowDragging; // [reset]
|
|
uint8_t mWindowShadow; // [reset]
|
|
};
|
|
|
|
struct nsCursorImage
|
|
{
|
|
bool mHaveHotspot;
|
|
float mHotspotX, mHotspotY;
|
|
RefPtr<nsStyleImageRequest> mImage;
|
|
|
|
nsCursorImage();
|
|
nsCursorImage(const nsCursorImage& aOther);
|
|
|
|
nsCursorImage& operator=(const nsCursorImage& aOther);
|
|
|
|
bool operator==(const nsCursorImage& aOther) const;
|
|
bool operator!=(const nsCursorImage& aOther) const
|
|
{
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
imgRequestProxy* GetImage() const {
|
|
return mImage->get();
|
|
}
|
|
};
|
|
|
|
struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleUserInterface
|
|
{
|
|
explicit nsStyleUserInterface(const nsPresContext* aContext);
|
|
nsStyleUserInterface(const nsStyleUserInterface& aOther);
|
|
~nsStyleUserInterface();
|
|
|
|
void FinishStyle(nsPresContext* aPresContext);
|
|
|
|
void* operator new(size_t sz, nsStyleUserInterface* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
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& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_ReconstructFrame |
|
|
nsChangeHint_NeedReflow |
|
|
nsChangeHint_NeedDirtyReflow |
|
|
NS_STYLE_HINT_VISUAL |
|
|
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;
|
|
}
|
|
|
|
mozilla::StyleUserInput mUserInput; // [inherited]
|
|
mozilla::StyleUserModify mUserModify; // [inherited] (modify-content)
|
|
mozilla::StyleUserFocus mUserFocus; // [inherited] (auto-select)
|
|
uint8_t mPointerEvents; // [inherited] see nsStyleConsts.h
|
|
|
|
uint8_t mCursor; // [inherited] See nsStyleConsts.h
|
|
nsTArray<nsCursorImage> mCursorImages; // [inherited] images and coords
|
|
mozilla::StyleComplexColor mCaretColor; // [inherited]
|
|
|
|
inline uint8_t GetEffectivePointerEvents(nsIFrame* aFrame) const;
|
|
};
|
|
|
|
struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleXUL
|
|
{
|
|
explicit nsStyleXUL(const nsPresContext* aContext);
|
|
nsStyleXUL(const nsStyleXUL& aSource);
|
|
~nsStyleXUL();
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStyleXUL* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
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& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_ReconstructFrame |
|
|
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;
|
|
}
|
|
|
|
float mBoxFlex; // [reset] see nsStyleConsts.h
|
|
uint32_t mBoxOrdinal; // [reset] see nsStyleConsts.h
|
|
mozilla::StyleBoxAlign mBoxAlign; // [reset]
|
|
mozilla::StyleBoxDirection mBoxDirection; // [reset]
|
|
mozilla::StyleBoxOrient mBoxOrient; // [reset]
|
|
mozilla::StyleBoxPack mBoxPack; // [reset]
|
|
bool mStretchStack; // [reset] see nsStyleConsts.h
|
|
};
|
|
|
|
struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleColumn
|
|
{
|
|
explicit nsStyleColumn(const nsPresContext* aContext);
|
|
nsStyleColumn(const nsStyleColumn& aSource);
|
|
~nsStyleColumn();
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStyleColumn* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
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& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_ReconstructFrame |
|
|
NS_STYLE_HINT_REFLOW |
|
|
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 = 1000;
|
|
|
|
uint32_t mColumnCount; // [reset] see nsStyleConsts.h
|
|
nsStyleCoord mColumnWidth; // [reset] coord, auto
|
|
nsStyleCoord mColumnGap; // [reset] coord, normal
|
|
|
|
mozilla::StyleComplexColor mColumnRuleColor; // [reset]
|
|
uint8_t mColumnRuleStyle; // [reset]
|
|
uint8_t mColumnFill; // [reset] see nsStyleConsts.h
|
|
|
|
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 : uint8_t {
|
|
eStyleSVGOpacitySource_Normal,
|
|
eStyleSVGOpacitySource_ContextFillOpacity,
|
|
eStyleSVGOpacitySource_ContextStrokeOpacity
|
|
};
|
|
|
|
class nsStyleSVGPaint
|
|
{
|
|
public:
|
|
explicit nsStyleSVGPaint(nsStyleSVGPaintType aType = nsStyleSVGPaintType(0));
|
|
nsStyleSVGPaint(const nsStyleSVGPaint& aSource);
|
|
~nsStyleSVGPaint();
|
|
|
|
nsStyleSVGPaint& operator=(const nsStyleSVGPaint& aOther);
|
|
|
|
nsStyleSVGPaintType Type() const { return mType; }
|
|
|
|
void SetNone();
|
|
void SetColor(nscolor aColor);
|
|
void SetPaintServer(mozilla::css::URLValue* aPaintServer,
|
|
nscolor aFallbackColor);
|
|
void SetContextValue(nsStyleSVGPaintType aType,
|
|
nscolor aFallbackColor);
|
|
|
|
nscolor GetColor() const {
|
|
MOZ_ASSERT(mType == eStyleSVGPaintType_Color);
|
|
return mPaint.mColor;
|
|
}
|
|
|
|
mozilla::css::URLValue* GetPaintServer() const {
|
|
MOZ_ASSERT(mType == eStyleSVGPaintType_Server);
|
|
return mPaint.mPaintServer;
|
|
}
|
|
|
|
nscolor GetFallbackColor() const {
|
|
MOZ_ASSERT(mType == eStyleSVGPaintType_Server ||
|
|
mType == eStyleSVGPaintType_ContextFill ||
|
|
mType == eStyleSVGPaintType_ContextStroke);
|
|
return mFallbackColor;
|
|
}
|
|
|
|
bool operator==(const nsStyleSVGPaint& aOther) const;
|
|
bool operator!=(const nsStyleSVGPaint& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
private:
|
|
void Reset();
|
|
void Assign(const nsStyleSVGPaint& aOther);
|
|
|
|
union {
|
|
nscolor mColor;
|
|
mozilla::css::URLValue* mPaintServer;
|
|
} mPaint;
|
|
nsStyleSVGPaintType mType;
|
|
nscolor mFallbackColor;
|
|
};
|
|
|
|
struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleSVG
|
|
{
|
|
explicit nsStyleSVG(const nsPresContext* aContext);
|
|
nsStyleSVG(const nsStyleSVG& aSource);
|
|
~nsStyleSVG();
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStyleSVG* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
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& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_UpdateEffects |
|
|
nsChangeHint_NeedReflow |
|
|
nsChangeHint_NeedDirtyReflow | // XXX remove me: 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]
|
|
RefPtr<mozilla::css::URLValue> mMarkerEnd; // [inherited]
|
|
RefPtr<mozilla::css::URLValue> mMarkerMid; // [inherited]
|
|
RefPtr<mozilla::css::URLValue> mMarkerStart; // [inherited]
|
|
nsTArray<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]
|
|
|
|
mozilla::StyleFillRule mClipRule; // [inherited]
|
|
uint8_t mColorInterpolation; // [inherited] see nsStyleConsts.h
|
|
uint8_t mColorInterpolationFilters; // [inherited] see nsStyleConsts.h
|
|
mozilla::StyleFillRule mFillRule; // [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
|
|
|
|
nsStyleSVGOpacitySource FillOpacitySource() const {
|
|
uint8_t value = (mContextFlags & FILL_OPACITY_SOURCE_MASK) >>
|
|
FILL_OPACITY_SOURCE_SHIFT;
|
|
return nsStyleSVGOpacitySource(value);
|
|
}
|
|
nsStyleSVGOpacitySource StrokeOpacitySource() const {
|
|
uint8_t value = (mContextFlags & STROKE_OPACITY_SOURCE_MASK) >>
|
|
STROKE_OPACITY_SOURCE_SHIFT;
|
|
return nsStyleSVGOpacitySource(value);
|
|
}
|
|
bool StrokeDasharrayFromObject() const {
|
|
return mContextFlags & STROKE_DASHARRAY_CONTEXT;
|
|
}
|
|
bool StrokeDashoffsetFromObject() const {
|
|
return mContextFlags & STROKE_DASHOFFSET_CONTEXT;
|
|
}
|
|
bool StrokeWidthFromObject() const {
|
|
return mContextFlags & STROKE_WIDTH_CONTEXT;
|
|
}
|
|
|
|
void SetFillOpacitySource(nsStyleSVGOpacitySource aValue) {
|
|
mContextFlags = (mContextFlags & ~FILL_OPACITY_SOURCE_MASK) |
|
|
(aValue << FILL_OPACITY_SOURCE_SHIFT);
|
|
}
|
|
void SetStrokeOpacitySource(nsStyleSVGOpacitySource aValue) {
|
|
mContextFlags = (mContextFlags & ~STROKE_OPACITY_SOURCE_MASK) |
|
|
(aValue << STROKE_OPACITY_SOURCE_SHIFT);
|
|
}
|
|
void SetStrokeDasharrayFromObject(bool aValue) {
|
|
mContextFlags = (mContextFlags & ~STROKE_DASHARRAY_CONTEXT) |
|
|
(aValue ? STROKE_DASHARRAY_CONTEXT : 0);
|
|
}
|
|
void SetStrokeDashoffsetFromObject(bool aValue) {
|
|
mContextFlags = (mContextFlags & ~STROKE_DASHOFFSET_CONTEXT) |
|
|
(aValue ? STROKE_DASHOFFSET_CONTEXT : 0);
|
|
}
|
|
void SetStrokeWidthFromObject(bool aValue) {
|
|
mContextFlags = (mContextFlags & ~STROKE_WIDTH_CONTEXT) |
|
|
(aValue ? STROKE_WIDTH_CONTEXT : 0);
|
|
}
|
|
|
|
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.Type() != 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.Type() != eStyleSVGPaintType_None && mFillOpacity > 0;
|
|
}
|
|
|
|
private:
|
|
// Flags to represent the use of context-fill and context-stroke
|
|
// for fill-opacity or stroke-opacity, and context-value for stroke-dasharray,
|
|
// stroke-dashoffset and stroke-width.
|
|
enum {
|
|
FILL_OPACITY_SOURCE_MASK = 0x03, // fill-opacity: context-{fill,stroke}
|
|
STROKE_OPACITY_SOURCE_MASK = 0x0C, // stroke-opacity: context-{fill,stroke}
|
|
STROKE_DASHARRAY_CONTEXT = 0x10, // stroke-dasharray: context-value
|
|
STROKE_DASHOFFSET_CONTEXT = 0x20, // stroke-dashoffset: context-value
|
|
STROKE_WIDTH_CONTEXT = 0x40, // stroke-width: context-value
|
|
FILL_OPACITY_SOURCE_SHIFT = 0,
|
|
STROKE_OPACITY_SOURCE_SHIFT = 2,
|
|
};
|
|
|
|
uint8_t mContextFlags; // [inherited]
|
|
};
|
|
|
|
struct nsStyleFilter
|
|
{
|
|
nsStyleFilter();
|
|
nsStyleFilter(const nsStyleFilter& aSource);
|
|
~nsStyleFilter();
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
nsStyleFilter& operator=(const nsStyleFilter& aOther);
|
|
|
|
bool operator==(const nsStyleFilter& aOther) const;
|
|
bool operator!=(const nsStyleFilter& aOther) const {
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
uint32_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);
|
|
|
|
mozilla::css::URLValue* GetURL() const {
|
|
MOZ_ASSERT(mType == NS_STYLE_FILTER_URL, "wrong filter type");
|
|
return mURL;
|
|
}
|
|
|
|
bool SetURL(mozilla::css::URLValue* aValue);
|
|
|
|
nsCSSShadowArray* GetDropShadow() const {
|
|
NS_ASSERTION(mType == NS_STYLE_FILTER_DROP_SHADOW, "wrong filter type");
|
|
return mDropShadow;
|
|
}
|
|
void SetDropShadow(nsCSSShadowArray* aDropShadow);
|
|
|
|
private:
|
|
void ReleaseRef();
|
|
|
|
uint32_t mType; // see NS_STYLE_FILTER_* constants in nsStyleConsts.h
|
|
nsStyleCoord mFilterParameter; // coord, percent, factor, angle
|
|
union {
|
|
mozilla::css::URLValue* mURL;
|
|
nsCSSShadowArray* mDropShadow;
|
|
};
|
|
};
|
|
|
|
template<>
|
|
struct nsTArray_CopyChooser<nsStyleFilter>
|
|
{
|
|
typedef nsTArray_CopyWithConstructors<nsStyleFilter> Type;
|
|
};
|
|
|
|
struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleSVGReset
|
|
{
|
|
explicit nsStyleSVGReset(const nsPresContext* aContext);
|
|
nsStyleSVGReset(const nsStyleSVGReset& aSource);
|
|
~nsStyleSVGReset();
|
|
|
|
// Resolves and tracks the images in mMask. Only called with a Servo-backed
|
|
// style system, where those images must be resolved later than the OMT
|
|
// nsStyleSVGReset constructor call.
|
|
void FinishStyle(nsPresContext* aPresContext);
|
|
|
|
void* operator new(size_t sz, nsStyleSVGReset* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleSVGReset, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext);
|
|
|
|
nsChangeHint CalcDifference(const nsStyleSVGReset& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_UpdateEffects |
|
|
nsChangeHint_UpdateOverflow |
|
|
nsChangeHint_NeutralChange |
|
|
nsChangeHint_RepaintFrame |
|
|
nsChangeHint_UpdateBackgroundPosition |
|
|
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 HasClipPath() const {
|
|
return mClipPath.GetType() != mozilla::StyleShapeSourceType::None;
|
|
}
|
|
|
|
bool HasNonScalingStroke() const {
|
|
return mVectorEffect == NS_STYLE_VECTOR_EFFECT_NON_SCALING_STROKE;
|
|
}
|
|
|
|
nsStyleImageLayers mMask;
|
|
mozilla::StyleClipPath mClipPath; // [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 MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleVariables
|
|
{
|
|
nsStyleVariables();
|
|
explicit nsStyleVariables(const nsPresContext* aContext);
|
|
nsStyleVariables(const nsStyleVariables& aSource);
|
|
~nsStyleVariables();
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStyleVariables* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
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& aNewData) 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;
|
|
};
|
|
|
|
struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleEffects
|
|
{
|
|
explicit nsStyleEffects(const nsPresContext* aContext);
|
|
nsStyleEffects(const nsStyleEffects& aSource);
|
|
~nsStyleEffects();
|
|
void FinishStyle(nsPresContext* aPresContext) {}
|
|
|
|
void* operator new(size_t sz, nsStyleEffects* aSelf) { return aSelf; }
|
|
void* operator new(size_t sz, nsPresContext* aContext) {
|
|
return aContext->PresShell()->
|
|
AllocateByObjectID(mozilla::eArenaObjectID_nsStyleEffects, sz);
|
|
}
|
|
void Destroy(nsPresContext* aContext) {
|
|
this->~nsStyleEffects();
|
|
aContext->PresShell()->
|
|
FreeByObjectID(mozilla::eArenaObjectID_nsStyleEffects, this);
|
|
}
|
|
|
|
nsChangeHint CalcDifference(const nsStyleEffects& aNewData) const;
|
|
static nsChangeHint MaxDifference() {
|
|
return nsChangeHint_AllReflowHints |
|
|
nsChangeHint_UpdateOverflow |
|
|
nsChangeHint_SchedulePaint |
|
|
nsChangeHint_RepaintFrame |
|
|
nsChangeHint_UpdateOpacityLayer |
|
|
nsChangeHint_UpdateUsesOpacity |
|
|
nsChangeHint_UpdateContainingBlock |
|
|
nsChangeHint_UpdateEffects |
|
|
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;
|
|
}
|
|
|
|
bool HasFilters() const {
|
|
return !mFilters.IsEmpty();
|
|
}
|
|
|
|
nsTArray<nsStyleFilter> mFilters; // [reset]
|
|
RefPtr<nsCSSShadowArray> mBoxShadow; // [reset] nullptr for 'none'
|
|
nsRect mClip; // [reset] offsets from UL border edge
|
|
float mOpacity; // [reset]
|
|
uint8_t mClipFlags; // [reset] see nsStyleConsts.h
|
|
uint8_t mMixBlendMode; // [reset] see nsStyleConsts.h
|
|
};
|
|
|
|
#define STATIC_ASSERT_TYPE_LAYOUTS_MATCH(T1, T2) \
|
|
static_assert(sizeof(T1) == sizeof(T2), \
|
|
"Size mismatch between " #T1 " and " #T2); \
|
|
static_assert(alignof(T1) == alignof(T2), \
|
|
"Align mismatch between " #T1 " and " #T2); \
|
|
|
|
#define STATIC_ASSERT_FIELD_OFFSET_MATCHES(T1, T2, field) \
|
|
static_assert(offsetof(T1, field) == offsetof(T2, field), \
|
|
"Field offset mismatch of " #field " between " #T1 " and " #T2); \
|
|
|
|
/**
|
|
* These *_Simple types are used to map Gecko types to layout-equivalent but
|
|
* simpler Rust types, to aid Rust binding generation.
|
|
*
|
|
* If something in this types or the assertions below needs to change, ask
|
|
* bholley, heycam or emilio before!
|
|
*
|
|
* <div rustbindgen="true" replaces="nsPoint">
|
|
*/
|
|
struct nsPoint_Simple {
|
|
nscoord x, y;
|
|
};
|
|
|
|
STATIC_ASSERT_TYPE_LAYOUTS_MATCH(nsPoint, nsPoint_Simple);
|
|
STATIC_ASSERT_FIELD_OFFSET_MATCHES(nsPoint, nsPoint_Simple, x);
|
|
STATIC_ASSERT_FIELD_OFFSET_MATCHES(nsPoint, nsPoint_Simple, y);
|
|
|
|
/**
|
|
* <div rustbindgen="true" replaces="nsMargin">
|
|
*/
|
|
struct nsMargin_Simple {
|
|
nscoord top, right, bottom, left;
|
|
};
|
|
|
|
STATIC_ASSERT_TYPE_LAYOUTS_MATCH(nsMargin, nsMargin_Simple);
|
|
STATIC_ASSERT_FIELD_OFFSET_MATCHES(nsMargin, nsMargin_Simple, top);
|
|
STATIC_ASSERT_FIELD_OFFSET_MATCHES(nsMargin, nsMargin_Simple, right);
|
|
STATIC_ASSERT_FIELD_OFFSET_MATCHES(nsMargin, nsMargin_Simple, bottom);
|
|
STATIC_ASSERT_FIELD_OFFSET_MATCHES(nsMargin, nsMargin_Simple, left);
|
|
|
|
/**
|
|
* <div rustbindgen="true" replaces="nsRect">
|
|
*/
|
|
struct nsRect_Simple {
|
|
nscoord x, y, width, height;
|
|
};
|
|
|
|
STATIC_ASSERT_TYPE_LAYOUTS_MATCH(nsRect, nsRect_Simple);
|
|
STATIC_ASSERT_FIELD_OFFSET_MATCHES(nsRect, nsRect_Simple, x);
|
|
STATIC_ASSERT_FIELD_OFFSET_MATCHES(nsRect, nsRect_Simple, y);
|
|
STATIC_ASSERT_FIELD_OFFSET_MATCHES(nsRect, nsRect_Simple, width);
|
|
STATIC_ASSERT_FIELD_OFFSET_MATCHES(nsRect, nsRect_Simple, height);
|
|
|
|
/**
|
|
* <div rustbindgen="true" replaces="nsSize">
|
|
*/
|
|
struct nsSize_Simple {
|
|
nscoord width, height;
|
|
};
|
|
|
|
STATIC_ASSERT_TYPE_LAYOUTS_MATCH(nsSize, nsSize_Simple);
|
|
STATIC_ASSERT_FIELD_OFFSET_MATCHES(nsSize, nsSize_Simple, width);
|
|
STATIC_ASSERT_FIELD_OFFSET_MATCHES(nsSize, nsSize_Simple, height);
|
|
|
|
/**
|
|
* <div rustbindgen="true" replaces="mozilla::UniquePtr">
|
|
*
|
|
* TODO(Emilio): This is a workaround and we should be able to get rid of this
|
|
* one.
|
|
*/
|
|
template<typename T, typename Deleter = mozilla::DefaultDelete<T>>
|
|
struct UniquePtr_Simple {
|
|
T* mPtr;
|
|
};
|
|
|
|
STATIC_ASSERT_TYPE_LAYOUTS_MATCH(mozilla::UniquePtr<int>, UniquePtr_Simple<int>);
|
|
|
|
/**
|
|
* <div rustbindgen replaces="nsTArray"></div>
|
|
*/
|
|
template<typename T>
|
|
class nsTArray_Simple {
|
|
T* mBuffer;
|
|
public:
|
|
// The existence of a destructor here prevents bindgen from deriving the Clone
|
|
// trait via a simple memory copy.
|
|
~nsTArray_Simple() {};
|
|
};
|
|
|
|
STATIC_ASSERT_TYPE_LAYOUTS_MATCH(nsTArray<nsStyleImageLayers::Layer>,
|
|
nsTArray_Simple<nsStyleImageLayers::Layer>);
|
|
STATIC_ASSERT_TYPE_LAYOUTS_MATCH(nsTArray<mozilla::StyleTransition>,
|
|
nsTArray_Simple<mozilla::StyleTransition>);
|
|
STATIC_ASSERT_TYPE_LAYOUTS_MATCH(nsTArray<mozilla::StyleAnimation>,
|
|
nsTArray_Simple<mozilla::StyleAnimation>);
|
|
|
|
#endif /* nsStyleStruct_h___ */
|