gecko-dev/layout/xul/nsTextBoxFrame.h

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/* -*- 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
* 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/. */
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#ifndef nsTextBoxFrame_h___
#define nsTextBoxFrame_h___
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#include "mozilla/Attributes.h"
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#include "nsLeafBoxFrame.h"
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class nsAccessKeyInfo;
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class nsAsyncAccesskeyUpdate;
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typedef nsLeafBoxFrame nsTextBoxFrameSuper;
class nsTextBoxFrame : public nsTextBoxFrameSuper
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{
public:
NS_DECL_QUERYFRAME_TARGET(nsTextBoxFrame)
NS_DECL_QUERYFRAME
NS_DECL_FRAMEARENA_HELPERS
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virtual nsSize GetPrefSize(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
virtual nsSize GetMinSize(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
virtual nscoord GetBoxAscent(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
NS_IMETHOD DoLayout(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
virtual void MarkIntrinsicWidthsDirty() MOZ_OVERRIDE;
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enum CroppingStyle { CropNone, CropLeft, CropRight, CropCenter };
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friend nsIFrame* NS_NewTextBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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virtual void Init(nsIContent* aContent,
nsIFrame* aParent,
nsIFrame* asPrevInFlow) MOZ_OVERRIDE;
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virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
virtual nsresult AttributeChanged(int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType) MOZ_OVERRIDE;
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#ifdef DEBUG_FRAME_DUMP
virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
#endif
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void UpdateAttributes(nsIAtom* aAttribute,
bool& aResize,
bool& aRedraw);
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists) MOZ_OVERRIDE;
virtual ~nsTextBoxFrame();
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void PaintTitle(nsRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
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nsPoint aPt,
const nscolor* aOverrideColor);
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nsRect GetComponentAlphaBounds();
virtual bool ComputesOwnOverflowArea() MOZ_OVERRIDE;
void GetCroppedTitle(nsString& aTitle) const { aTitle = mCroppedTitle; }
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protected:
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friend class nsAsyncAccesskeyUpdate;
friend class nsDisplayXULTextBox;
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// Should be called only by nsAsyncAccesskeyUpdate.
// Returns true if accesskey was updated.
bool UpdateAccesskey(nsWeakFrame& aWeakThis);
void UpdateAccessTitle();
void UpdateAccessIndex();
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// REVIEW: SORRY! Couldn't resist devirtualizing these
void LayoutTitle(nsPresContext* aPresContext,
nsRenderingContext& aRenderingContext,
const nsRect& aRect);
void CalculateUnderline(nsRenderingContext& aRenderingContext);
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void CalcTextSize(nsBoxLayoutState& aBoxLayoutState);
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void CalcDrawRect(nsRenderingContext &aRenderingContext);
nsTextBoxFrame(nsIPresShell* aShell, nsStyleContext* aContext);
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nscoord CalculateTitleForWidth(nsPresContext* aPresContext,
nsRenderingContext& aRenderingContext,
nscoord aWidth);
void GetTextSize(nsPresContext* aPresContext,
nsRenderingContext& aRenderingContext,
const nsString& aString,
nsSize& aSize,
nscoord& aAscent);
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nsresult RegUnregAccessKey(bool aDoReg);
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private:
bool AlwaysAppendAccessKey();
bool InsertSeparatorBeforeAccessKey();
void DrawText(nsRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
const nsRect& aTextRect,
const nscolor* aOverrideColor);
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nsString mTitle;
nsString mCroppedTitle;
nsString mAccessKey;
nsSize mTextSize;
nsRect mTextDrawRect;
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nsAccessKeyInfo* mAccessKeyInfo;
CroppingStyle mCropType;
nscoord mAscent;
bool mNeedsRecalc;
bool mNeedsReflowCallback;
static bool gAlwaysAppendAccessKey;
static bool gAccessKeyPrefInitialized;
static bool gInsertSeparatorBeforeAccessKey;
static bool gInsertSeparatorPrefInitialized;
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}; // class nsTextBoxFrame
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#endif /* nsTextBoxFrame_h___ */