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