/* -*- 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/. */ /* rendering object for list-item bullets */ #ifndef nsBulletFrame_h___ #define nsBulletFrame_h___ #include "mozilla/Attributes.h" #include "nsFrame.h" #include "imgINotificationObserver.h" class imgIContainer; class imgRequestProxy; class nsBulletFrame; class nsBulletListener : public imgINotificationObserver { public: nsBulletListener(); virtual ~nsBulletListener(); NS_DECL_ISUPPORTS NS_DECL_IMGINOTIFICATIONOBSERVER void SetFrame(nsBulletFrame *frame) { mFrame = frame; } private: nsBulletFrame *mFrame; }; /** * A simple class that manages the layout and rendering of html bullets. * This class also supports the CSS list-style properties. */ class nsBulletFrame : public nsFrame { public: NS_DECL_FRAMEARENA_HELPERS #ifdef DEBUG NS_DECL_QUERYFRAME_TARGET(nsBulletFrame) NS_DECL_QUERYFRAME #endif nsBulletFrame(nsStyleContext* aContext) : nsFrame(aContext) { } virtual ~nsBulletFrame(); NS_IMETHOD Notify(imgIRequest *aRequest, int32_t aType, const nsIntRect* aData); // nsIFrame virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE; virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder, const nsRect& aDirtyRect, const nsDisplayListSet& aLists) MOZ_OVERRIDE; virtual nsIAtom* GetType() const MOZ_OVERRIDE; virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext) MOZ_OVERRIDE; #ifdef DEBUG_FRAME_DUMP virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE; #endif // nsIHTMLReflow virtual void Reflow(nsPresContext* aPresContext, nsHTMLReflowMetrics& aMetrics, const nsHTMLReflowState& aReflowState, nsReflowStatus& aStatus) MOZ_OVERRIDE; virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE; virtual nscoord GetPrefWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE; // nsBulletFrame int32_t SetListItemOrdinal(int32_t aNextOrdinal, bool* aChanged, int32_t aIncrement); /* get list item text, without '.' */ static void AppendCounterText(int32_t aListStyleType, int32_t aOrdinal, nsString& aResult, bool& aIsRTL); /* get suffix of list item */ static void GetListItemSuffix(int32_t aListStyleType, nsString& aResult, bool& aSuppressPadding); /* get list item text, with '.' */ void GetListItemText(const nsStyleList& aStyleList, nsString& aResult); void PaintBullet(nsRenderingContext& aRenderingContext, nsPoint aPt, const nsRect& aDirtyRect, uint32_t aFlags); virtual bool IsEmpty() MOZ_OVERRIDE; virtual bool IsSelfEmpty() MOZ_OVERRIDE; virtual nscoord GetBaseline() const MOZ_OVERRIDE; float GetFontSizeInflation() const; bool HasFontSizeInflation() const { return (GetStateBits() & BULLET_FRAME_HAS_FONT_INFLATION) != 0; } void SetFontSizeInflation(float aInflation); int32_t GetOrdinal() { return mOrdinal; } already_AddRefed GetImage() const; protected: nsresult OnStartContainer(imgIRequest *aRequest, imgIContainer *aImage); void GetDesiredSize(nsPresContext* aPresContext, nsRenderingContext *aRenderingContext, nsHTMLReflowMetrics& aMetrics, float aFontSizeInflation); void GetLoadGroup(nsPresContext *aPresContext, nsILoadGroup **aLoadGroup); nsMargin mPadding; nsRefPtr mImageRequest; nsRefPtr mListener; nsSize mIntrinsicSize; int32_t mOrdinal; bool mTextIsRTL; // If set to true, any padding of bullet defined in the UA style sheet will // be suppressed. This is used for some CJK numbering styles where extra // space after the suffix is not desired. Note that, any author-specified // padding overriding the default style will NOT be suppressed. bool mSuppressPadding; private: // This is a boolean flag indicating whether or not the current image request // has been registered with the refresh driver. bool mRequestRegistered; }; #endif /* nsBulletFrame_h___ */