LCOV - code coverage report
Current view: top level - layout/generic - nsBulletFrame.h (source / functions) Hit Total Coverage
Test: output.info Lines: 0 9 0.0 %
Date: 2017-07-14 16:53:18 Functions: 0 5 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : 
       6             : /* rendering object for list-item bullets */
       7             : 
       8             : #ifndef nsBulletFrame_h___
       9             : #define nsBulletFrame_h___
      10             : 
      11             : #include "mozilla/Attributes.h"
      12             : #include "nsFrame.h"
      13             : 
      14             : #include "imgIContainer.h"
      15             : #include "imgINotificationObserver.h"
      16             : #include "imgIOnloadBlocker.h"
      17             : 
      18             : class imgIContainer;
      19             : class imgRequestProxy;
      20             : 
      21             : class nsBulletFrame;
      22             : class BulletRenderer;
      23             : 
      24             : class nsBulletListener final : public imgINotificationObserver,
      25             :                                public imgIOnloadBlocker
      26             : {
      27             : public:
      28             :   nsBulletListener();
      29             : 
      30             :   NS_DECL_ISUPPORTS
      31             :   NS_DECL_IMGINOTIFICATIONOBSERVER
      32             :   NS_DECL_IMGIONLOADBLOCKER
      33             : 
      34           0 :   void SetFrame(nsBulletFrame *frame) { mFrame = frame; }
      35             : 
      36             : private:
      37             :   virtual ~nsBulletListener();
      38             : 
      39             :   nsBulletFrame *mFrame;
      40             : };
      41             : 
      42             : /**
      43             :  * A simple class that manages the layout and rendering of html bullets.
      44             :  * This class also supports the CSS list-style properties.
      45             :  */
      46             : class nsBulletFrame final : public nsFrame {
      47             :   typedef mozilla::image::DrawResult DrawResult;
      48             : 
      49             : public:
      50           0 :   NS_DECL_FRAMEARENA_HELPERS(nsBulletFrame)
      51             : #ifdef DEBUG
      52             :   NS_DECL_QUERYFRAME
      53             : #endif
      54             : 
      55           0 :   explicit nsBulletFrame(nsStyleContext* aContext)
      56           0 :     : nsFrame(aContext, kClassID)
      57             :     , mPadding(GetWritingMode())
      58             :     , mIntrinsicSize(GetWritingMode())
      59             :     , mOrdinal(0)
      60             :     , mRequestRegistered(false)
      61           0 :     , mBlockingOnload(false)
      62           0 :   {}
      63             : 
      64             :   virtual ~nsBulletFrame();
      65             : 
      66             :   NS_IMETHOD Notify(imgIRequest* aRequest, int32_t aType, const nsIntRect* aData);
      67             :   NS_IMETHOD BlockOnload(imgIRequest* aRequest);
      68             :   NS_IMETHOD UnblockOnload(imgIRequest* aRequest);
      69             : 
      70             :   // nsIFrame
      71             :   virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
      72             :   virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,
      73             :                                 const nsRect&           aDirtyRect,
      74             :                                 const nsDisplayListSet& aLists) override;
      75             :   virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext) override;
      76             : #ifdef DEBUG_FRAME_DUMP
      77             :   virtual nsresult GetFrameName(nsAString& aResult) const override;
      78             : #endif
      79             : 
      80             :   virtual void Reflow(nsPresContext* aPresContext,
      81             :                       ReflowOutput& aMetrics,
      82             :                       const ReflowInput& aReflowInput,
      83             :                       nsReflowStatus& aStatus) override;
      84             :   virtual nscoord GetMinISize(gfxContext *aRenderingContext) override;
      85             :   virtual nscoord GetPrefISize(gfxContext *aRenderingContext) override;
      86             :   void AddInlineMinISize(gfxContext* aRenderingContext,
      87             :                          nsIFrame::InlineMinISizeData* aData) override;
      88             :   void AddInlinePrefISize(gfxContext* aRenderingContext,
      89             :                           nsIFrame::InlinePrefISizeData* aData) override;
      90             : 
      91             :   // nsBulletFrame
      92             :   int32_t SetListItemOrdinal(int32_t aNextOrdinal, bool* aChanged,
      93             :                              int32_t aIncrement);
      94             : 
      95             :   /* get list item text, with prefix & suffix */
      96             :   void GetListItemText(nsAString& aResult);
      97             : 
      98             :   void GetSpokenText(nsAString& aText);
      99             : 
     100             :   Maybe<BulletRenderer>
     101             :   CreateBulletRenderer(gfxContext& aRenderingContext, nsPoint aPt);
     102             :   DrawResult PaintBullet(gfxContext& aRenderingContext, nsPoint aPt,
     103             :                          const nsRect& aDirtyRect, uint32_t aFlags,
     104             :                          bool aDisableSubpixelAA);
     105             : 
     106             :   virtual bool IsEmpty() override;
     107             :   virtual bool IsSelfEmpty() override;
     108             :   virtual nscoord GetLogicalBaseline(mozilla::WritingMode aWritingMode) const override;
     109             : 
     110             :   float GetFontSizeInflation() const;
     111           0 :   bool HasFontSizeInflation() const {
     112           0 :     return (GetStateBits() & BULLET_FRAME_HAS_FONT_INFLATION) != 0;
     113             :   }
     114             :   void SetFontSizeInflation(float aInflation);
     115             : 
     116           0 :   int32_t GetOrdinal() { return mOrdinal; }
     117             : 
     118             :   already_AddRefed<imgIContainer> GetImage() const;
     119             : 
     120             : protected:
     121             :   nsresult OnSizeAvailable(imgIRequest* aRequest, imgIContainer* aImage);
     122             : 
     123             :   void AppendSpacingToPadding(nsFontMetrics* aFontMetrics,
     124             :                               mozilla::LogicalMargin* aPadding);
     125             :   void GetDesiredSize(nsPresContext* aPresContext,
     126             :                       gfxContext *aRenderingContext,
     127             :                       ReflowOutput& aMetrics,
     128             :                       float aFontSizeInflation,
     129             :                       mozilla::LogicalMargin* aPadding);
     130             : 
     131             :   void GetLoadGroup(nsPresContext *aPresContext, nsILoadGroup **aLoadGroup);
     132             :   nsIDocument* GetOurCurrentDoc() const;
     133             : 
     134             :   mozilla::LogicalMargin mPadding;
     135             :   RefPtr<imgRequestProxy> mImageRequest;
     136             :   RefPtr<nsBulletListener> mListener;
     137             : 
     138             :   mozilla::LogicalSize mIntrinsicSize;
     139             :   int32_t mOrdinal;
     140             : 
     141             : private:
     142             :   void RegisterImageRequest(bool aKnownToBeAnimated);
     143             :   void DeregisterAndCancelImageRequest();
     144             : 
     145             :   // This is a boolean flag indicating whether or not the current image request
     146             :   // has been registered with the refresh driver.
     147             :   bool mRequestRegistered : 1;
     148             : 
     149             :   // Whether we're currently blocking onload.
     150             :   bool mBlockingOnload : 1;
     151             : };
     152             : 
     153             : #endif /* nsBulletFrame_h___ */

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