зеркало из https://github.com/mozilla/gecko-dev.git
96 строки
3.9 KiB
C++
96 строки
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef nsFirstLetterFrame_h__
|
|
#define nsFirstLetterFrame_h__
|
|
|
|
/* rendering object for CSS :first-letter pseudo-element */
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "nsContainerFrame.h"
|
|
|
|
class nsFirstLetterFrame final : public nsContainerFrame {
|
|
public:
|
|
NS_DECL_QUERYFRAME
|
|
NS_DECL_FRAMEARENA_HELPERS(nsFirstLetterFrame)
|
|
|
|
explicit nsFirstLetterFrame(nsStyleContext* aContext)
|
|
: nsContainerFrame(aContext, kClassID)
|
|
{}
|
|
|
|
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsDisplayListSet& aLists) override;
|
|
|
|
virtual void Init(nsIContent* aContent,
|
|
nsContainerFrame* aParent,
|
|
nsIFrame* aPrevInFlow) override;
|
|
virtual void SetInitialChildList(ChildListID aListID,
|
|
nsFrameList& aChildList) override;
|
|
#ifdef DEBUG_FRAME_DUMP
|
|
virtual nsresult GetFrameName(nsAString& aResult) const override;
|
|
#endif
|
|
|
|
bool IsFloating() const { return GetStateBits() & NS_FRAME_OUT_OF_FLOW; }
|
|
|
|
virtual bool IsFrameOfType(uint32_t aFlags) const override
|
|
{
|
|
if (!IsFloating())
|
|
aFlags = aFlags & ~(nsIFrame::eLineParticipant);
|
|
return nsContainerFrame::IsFrameOfType(aFlags &
|
|
~(nsIFrame::eBidiInlineContainer));
|
|
}
|
|
|
|
virtual nscoord GetMinISize(gfxContext *aRenderingContext) override;
|
|
virtual nscoord GetPrefISize(gfxContext *aRenderingContext) override;
|
|
virtual void AddInlineMinISize(gfxContext *aRenderingContext,
|
|
InlineMinISizeData *aData) override;
|
|
virtual void AddInlinePrefISize(gfxContext *aRenderingContext,
|
|
InlinePrefISizeData *aData) override;
|
|
|
|
virtual mozilla::LogicalSize
|
|
ComputeSize(gfxContext *aRenderingContext,
|
|
mozilla::WritingMode aWritingMode,
|
|
const mozilla::LogicalSize& aCBSize,
|
|
nscoord aAvailableISize,
|
|
const mozilla::LogicalSize& aMargin,
|
|
const mozilla::LogicalSize& aBorder,
|
|
const mozilla::LogicalSize& aPadding,
|
|
ComputeSizeFlags aFlags) override;
|
|
|
|
virtual void Reflow(nsPresContext* aPresContext,
|
|
ReflowOutput& aDesiredSize,
|
|
const ReflowInput& aReflowInput,
|
|
nsReflowStatus& aStatus) override;
|
|
|
|
virtual bool CanContinueTextRun() const override;
|
|
virtual nscoord GetLogicalBaseline(mozilla::WritingMode aWritingMode) const override;
|
|
virtual LogicalSides GetLogicalSkipSides(const ReflowInput* aReflowInput = nullptr) const override;
|
|
|
|
//override of nsFrame method
|
|
virtual nsresult GetChildFrameContainingOffset(int32_t inContentOffset,
|
|
bool inHint,
|
|
int32_t* outFrameContentOffset,
|
|
nsIFrame** outChildFrame) override;
|
|
|
|
nscoord GetFirstLetterBaseline() const { return mBaseline; }
|
|
|
|
// For floating first letter frames, create a continuation for aChild and
|
|
// place it in the correct place. aContinuation is an outparam for the
|
|
// continuation that is created. aIsFluid determines if the continuation is
|
|
// fluid or not.
|
|
nsresult CreateContinuationForFloatingParent(nsPresContext* aPresContext,
|
|
nsIFrame* aChild,
|
|
nsIFrame** aContinuation,
|
|
bool aIsFluid);
|
|
|
|
protected:
|
|
nscoord mBaseline;
|
|
|
|
void DrainOverflowFrames(nsPresContext* aPresContext);
|
|
};
|
|
|
|
#endif /* nsFirstLetterFrame_h__ */
|