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https://gitlab.winehq.org/wine/wine-gecko.git
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4bfe3c39fd
Backed out changeset e2ab653f688a (bug 1008917) Backed out changeset b52154d8d900 (bug 1008917) Backed out changeset 2ab5b01da4de (bug 1008917) Backed out changeset f7a38df1d44f (bug 1008917) Backed out changeset 80304bb9a572 (bug 1008917) Backed out changeset 10ed89a302e9 (bug 1008917) Backed out changeset 161c41991d46 (bug 1008917) Backed out changeset 25b2475d2368 (bug 1008917) Backed out changeset b8000b31277c (bug 1008917) Backed out changeset 9afa5e7715e1 (bug 1008917) Backed out changeset 5c380c21351f (bug 1008917)
215 lines
8.1 KiB
C++
215 lines
8.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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/* rendering object for CSS display:inline objects */
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#ifndef nsInlineFrame_h___
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#define nsInlineFrame_h___
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#include "mozilla/Attributes.h"
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#include "nsContainerFrame.h"
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class nsLineLayout;
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typedef nsContainerFrame nsInlineFrameBase;
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/**
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* Inline frame class.
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*
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* This class manages a list of child frames that are inline frames. Working with
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* nsLineLayout, the class will reflow and place inline frames on a line.
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*/
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class nsInlineFrame : public nsInlineFrameBase
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{
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public:
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NS_DECL_QUERYFRAME_TARGET(nsInlineFrame)
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS
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friend nsIFrame* NS_NewInlineFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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// nsIFrame overrides
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists) MOZ_OVERRIDE;
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#ifdef ACCESSIBILITY
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virtual mozilla::a11y::AccType AccessibleType() MOZ_OVERRIDE;
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#endif
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#ifdef DEBUG_FRAME_DUMP
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virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
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#endif
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virtual nsIAtom* GetType() const MOZ_OVERRIDE;
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virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
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{
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if (aFlags & eSupportsCSSTransforms) {
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return false;
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}
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return nsContainerFrame::IsFrameOfType(aFlags &
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~(nsIFrame::eBidiInlineContainer | nsIFrame::eLineParticipant));
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}
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virtual void InvalidateFrame(uint32_t aDisplayItemKey = 0) MOZ_OVERRIDE;
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virtual void InvalidateFrameWithRect(const nsRect& aRect, uint32_t aDisplayItemKey = 0) MOZ_OVERRIDE;
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virtual bool IsEmpty() MOZ_OVERRIDE;
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virtual bool IsSelfEmpty() MOZ_OVERRIDE;
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virtual FrameSearchResult PeekOffsetCharacter(bool aForward, int32_t* aOffset,
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bool aRespectClusters = true) MOZ_OVERRIDE;
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// nsIHTMLReflow overrides
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virtual void AddInlineMinWidth(nsRenderingContext *aRenderingContext,
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InlineMinWidthData *aData) MOZ_OVERRIDE;
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virtual void AddInlinePrefWidth(nsRenderingContext *aRenderingContext,
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InlinePrefWidthData *aData) MOZ_OVERRIDE;
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virtual nsSize ComputeSize(nsRenderingContext *aRenderingContext,
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nsSize aCBSize, nscoord aAvailableWidth,
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nsSize aMargin, nsSize aBorder, nsSize aPadding,
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uint32_t aFlags) MOZ_OVERRIDE;
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virtual nsRect ComputeTightBounds(gfxContext* aContext) const MOZ_OVERRIDE;
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virtual nsresult Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus) MOZ_OVERRIDE;
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virtual bool CanContinueTextRun() const MOZ_OVERRIDE;
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virtual void PullOverflowsFromPrevInFlow() MOZ_OVERRIDE;
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virtual nscoord GetBaseline() const MOZ_OVERRIDE;
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virtual bool DrainSelfOverflowList() MOZ_OVERRIDE;
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/**
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* Return true if the frame is first visual frame or first continuation
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*/
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bool IsFirst() const {
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// If the frame's bidi visual state is set, return is-first state
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// else return true if it's the first continuation.
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return (GetStateBits() & NS_INLINE_FRAME_BIDI_VISUAL_STATE_IS_SET)
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? !!(GetStateBits() & NS_INLINE_FRAME_BIDI_VISUAL_IS_FIRST)
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: (!GetPrevInFlow());
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}
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/**
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* Return true if the frame is last visual frame or last continuation.
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*/
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bool IsLast() const {
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// If the frame's bidi visual state is set, return is-last state
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// else return true if it's the last continuation.
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return (GetStateBits() & NS_INLINE_FRAME_BIDI_VISUAL_STATE_IS_SET)
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? !!(GetStateBits() & NS_INLINE_FRAME_BIDI_VISUAL_IS_LAST)
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: (!GetNextInFlow());
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}
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protected:
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// Additional reflow state used during our reflow methods
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struct InlineReflowState {
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nsIFrame* mPrevFrame;
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nsInlineFrame* mNextInFlow;
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nsIFrame* mLineContainer;
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nsLineLayout* mLineLayout;
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bool mSetParentPointer; // when reflowing child frame first set its
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// parent frame pointer
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InlineReflowState() {
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mPrevFrame = nullptr;
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mNextInFlow = nullptr;
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mLineContainer = nullptr;
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mLineLayout = nullptr;
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mSetParentPointer = false;
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}
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};
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nsInlineFrame(nsStyleContext* aContext) : nsContainerFrame(aContext) {}
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virtual int GetLogicalSkipSides(const nsHTMLReflowState* aReflowState = nullptr) const MOZ_OVERRIDE;
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nsresult ReflowFrames(nsPresContext* aPresContext,
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const nsHTMLReflowState& aReflowState,
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InlineReflowState& rs,
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nsHTMLReflowMetrics& aMetrics,
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nsReflowStatus& aStatus);
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nsresult ReflowInlineFrame(nsPresContext* aPresContext,
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const nsHTMLReflowState& aReflowState,
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InlineReflowState& rs,
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nsIFrame* aFrame,
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nsReflowStatus& aStatus);
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/**
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* Reparent floats whose placeholders are inline descendants of aFrame from
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* whatever block they're currently parented by to aOurBlock.
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* @param aReparentSiblings if this is true, we follow aFrame's
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* GetNextSibling chain reparenting them all
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*/
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void ReparentFloatsForInlineChild(nsIFrame* aOurBlock, nsIFrame* aFrame,
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bool aReparentSiblings);
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virtual nsIFrame* PullOneFrame(nsPresContext* aPresContext,
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InlineReflowState& rs,
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bool* aIsComplete);
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virtual void PushFrames(nsPresContext* aPresContext,
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nsIFrame* aFromChild,
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nsIFrame* aPrevSibling,
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InlineReflowState& aState);
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private:
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// Helper method for DrainSelfOverflowList() to deal with lazy parenting
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// (which we only do for nsInlineFrame, not nsFirstLineFrame).
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enum DrainFlags {
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eDontReparentFrames = 1, // skip reparenting the overflow list frames
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eInFirstLine = 2, // the request is for an inline descendant of a nsFirstLineFrame
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};
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/**
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* Move any frames on our overflow list to the end of our principal list.
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* @param aFlags one or more of the above DrainFlags
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* @param aLineContainer the nearest line container ancestor
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* @return true if there were any overflow frames
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*/
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bool DrainSelfOverflowListInternal(DrainFlags aFlags,
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nsIFrame* aLineContainer);
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protected:
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nscoord mBaseline;
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};
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//----------------------------------------------------------------------
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/**
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* Variation on inline-frame used to manage lines for line layout in
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* special situations (:first-line style in particular).
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*/
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class nsFirstLineFrame MOZ_FINAL : public nsInlineFrame {
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public:
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NS_DECL_FRAMEARENA_HELPERS
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friend nsIFrame* NS_NewFirstLineFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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#ifdef DEBUG_FRAME_DUMP
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virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
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#endif
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virtual nsIAtom* GetType() const MOZ_OVERRIDE;
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virtual nsresult Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus) MOZ_OVERRIDE;
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virtual void Init(nsIContent* aContent, nsIFrame* aParent,
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nsIFrame* aPrevInFlow) MOZ_OVERRIDE;
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virtual void PullOverflowsFromPrevInFlow() MOZ_OVERRIDE;
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virtual bool DrainSelfOverflowList() MOZ_OVERRIDE;
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protected:
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nsFirstLineFrame(nsStyleContext* aContext) : nsInlineFrame(aContext) {}
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virtual nsIFrame* PullOneFrame(nsPresContext* aPresContext,
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InlineReflowState& rs,
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bool* aIsComplete) MOZ_OVERRIDE;
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};
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#endif /* nsInlineFrame_h___ */
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