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/* -*- 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 nsTextBoxFrame_h___
#define nsTextBoxFrame_h___
#include "mozilla/Attributes.h"
#include "nsLeafBoxFrame.h"
class nsAccessKeyInfo;
class nsAsyncAccesskeyUpdate;
class nsFontMetrics;
namespace mozilla {
class PresShell;
} // namespace mozilla
class nsTextBoxFrame final : public nsLeafBoxFrame {
public:
NS_DECL_QUERYFRAME
NS_DECL_FRAMEARENA_HELPERS(nsTextBoxFrame)
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(mozilla::PresShell* aPresShell,
ComputedStyle* aStyle);
virtual void Init(nsIContent* aContent, nsContainerFrame* aParent,
nsIFrame* asPrevInFlow) override;
virtual void DestroyFrom(nsIFrame* aDestructRoot,
PostDestroyData& aPostDestroyData) override;
virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
int32_t aModType) override;
#ifdef DEBUG_FRAME_DUMP
virtual nsresult GetFrameName(nsAString& aResult) const override;
#endif
void UpdateAttributes(nsAtom* aAttribute, bool& aResize, bool& aRedraw);
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsDisplayListSet& aLists) override;
virtual ~nsTextBoxFrame();
void PaintTitle(gfxContext& aRenderingContext, const nsRect& aDirtyRect,
nsPoint aPt, const nscolor* aOverrideColor);
nsRect GetComponentAlphaBounds() const;
virtual bool XULComputesOwnOverflowArea() override;
void GetCroppedTitle(nsString& aTitle) const { aTitle = mCroppedTitle; }
virtual void DidSetComputedStyle(ComputedStyle* aOldComputedStyle) override;
protected:
friend class nsAsyncAccesskeyUpdate;
friend class nsDisplayXULTextBox;
// Should be called only by nsAsyncAccesskeyUpdate.
// Returns true if accesskey was updated.
bool UpdateAccesskey(WeakFrame& 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, gfxContext& aRenderingContext,
const nsRect& aRect);
void CalculateUnderline(DrawTarget* aDrawTarget, nsFontMetrics& aFontMetrics);
void CalcTextSize(nsBoxLayoutState& aBoxLayoutState);
void CalcDrawRect(gfxContext& aRenderingContext);
explicit nsTextBoxFrame(ComputedStyle* aStyle, nsPresContext* aPresContext);
nscoord CalculateTitleForWidth(gfxContext& aRenderingContext, nscoord aWidth);
void GetTextSize(gfxContext& aRenderingContext, const nsString& aString,
nsSize& aSize, nscoord& aAscent);
nsresult RegUnregAccessKey(bool aDoReg);
private:
bool AlwaysAppendAccessKey();
bool InsertSeparatorBeforeAccessKey();
void DrawText(gfxContext& 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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