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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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_TARGET(nsFirstLetterFrame)
NS_DECL_QUERYFRAME
NS_DECL_FRAMEARENA_HELPERS
explicit nsFirstLetterFrame(nsStyleContext* aContext) : nsContainerFrame(aContext) {}
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
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
virtual nsIAtom* GetType() const override;
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(nsRenderingContext *aRenderingContext) override;
virtual nscoord GetPrefISize(nsRenderingContext *aRenderingContext) override;
virtual void AddInlineMinISize(nsRenderingContext *aRenderingContext,
InlineMinISizeData *aData) override;
virtual void AddInlinePrefISize(nsRenderingContext *aRenderingContext,
InlinePrefISizeData *aData) override;
virtual mozilla::LogicalSize
ComputeSize(nsRenderingContext *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__ */
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