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Diffstat (limited to 'layout/xul/nsTextBoxFrame.h')
-rw-r--r-- | layout/xul/nsTextBoxFrame.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/layout/xul/nsTextBoxFrame.h b/layout/xul/nsTextBoxFrame.h new file mode 100644 index 000000000..ca1b88748 --- /dev/null +++ b/layout/xul/nsTextBoxFrame.h @@ -0,0 +1,134 @@ +/* -*- 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___ */ |