michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: #ifndef nsImageBoxFrame_h___
michael@0: #define nsImageBoxFrame_h___
michael@0: 
michael@0: #include "mozilla/Attributes.h"
michael@0: #include "nsLeafBoxFrame.h"
michael@0: 
michael@0: #include "imgILoader.h"
michael@0: #include "imgIRequest.h"
michael@0: #include "imgIContainer.h"
michael@0: #include "imgINotificationObserver.h"
michael@0: #include "imgIOnloadBlocker.h"
michael@0: 
michael@0: class imgRequestProxy;
michael@0: class nsImageBoxFrame;
michael@0: 
michael@0: class nsDisplayXULImage;
michael@0: 
michael@0: class nsImageBoxListener : public imgINotificationObserver,
michael@0:                            public imgIOnloadBlocker
michael@0: {
michael@0: public:
michael@0:   nsImageBoxListener();
michael@0:   virtual ~nsImageBoxListener();
michael@0: 
michael@0:   NS_DECL_ISUPPORTS
michael@0:   NS_DECL_IMGINOTIFICATIONOBSERVER
michael@0:   NS_DECL_IMGIONLOADBLOCKER
michael@0: 
michael@0:   void SetFrame(nsImageBoxFrame *frame) { mFrame = frame; }
michael@0: 
michael@0: private:
michael@0:   nsImageBoxFrame *mFrame;
michael@0: };
michael@0: 
michael@0: class nsImageBoxFrame : public nsLeafBoxFrame
michael@0: {
michael@0: public:
michael@0:   typedef mozilla::layers::LayerManager LayerManager;
michael@0: 
michael@0:   friend class nsDisplayXULImage;
michael@0:   NS_DECL_FRAMEARENA_HELPERS
michael@0: 
michael@0:   virtual nsSize GetPrefSize(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
michael@0:   virtual nsSize GetMinSize(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
michael@0:   virtual nscoord GetBoxAscent(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
michael@0:   virtual void MarkIntrinsicWidthsDirty() MOZ_OVERRIDE;
michael@0: 
michael@0:   nsresult Notify(imgIRequest *aRequest, int32_t aType, const nsIntRect* aData);
michael@0: 
michael@0:   friend nsIFrame* NS_NewImageBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
michael@0: 
michael@0:   virtual void Init(nsIContent*      aContent,
michael@0:                     nsIFrame*        aParent,
michael@0:                     nsIFrame*        asPrevInFlow) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual nsresult AttributeChanged(int32_t aNameSpaceID,
michael@0:                                     nsIAtom* aAttribute,
michael@0:                                     int32_t aModType) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual nsIAtom* GetType() const MOZ_OVERRIDE;
michael@0: #ifdef DEBUG_FRAME_DUMP
michael@0:   virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
michael@0: #endif
michael@0: 
michael@0:   /** 
michael@0:    * Update mUseSrcAttr from appropriate content attributes or from
michael@0:    * style, throw away the current image, and load the appropriate
michael@0:    * image.
michael@0:    * */
michael@0:   void UpdateImage();
michael@0: 
michael@0:   /**
michael@0:    * Update mLoadFlags from content attributes. Does not attempt to reload the
michael@0:    * image using the new load flags.
michael@0:    */
michael@0:   void UpdateLoadFlags();
michael@0: 
michael@0:   virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,
michael@0:                                 const nsRect&           aDirtyRect,
michael@0:                                 const nsDisplayListSet& aLists) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual ~nsImageBoxFrame();
michael@0: 
michael@0:   void  PaintImage(nsRenderingContext& aRenderingContext,
michael@0:                    const nsRect& aDirtyRect,
michael@0:                    nsPoint aPt, uint32_t aFlags);
michael@0: 
michael@0:   already_AddRefed<mozilla::layers::ImageContainer> GetContainer(LayerManager* aManager);
michael@0: protected:
michael@0:   nsImageBoxFrame(nsIPresShell* aShell, nsStyleContext* aContext);
michael@0: 
michael@0:   virtual void GetImageSize();
michael@0: 
michael@0: private:
michael@0:   nsresult OnStartContainer(imgIRequest *request, imgIContainer *image);
michael@0:   nsresult OnStopDecode(imgIRequest *request);
michael@0:   nsresult OnStopRequest(imgIRequest *request, nsresult status);
michael@0:   nsresult OnImageIsAnimated(imgIRequest* aRequest);
michael@0:   nsresult FrameChanged(imgIRequest *aRequest);
michael@0: 
michael@0:   nsRect mSubRect; ///< If set, indicates that only the portion of the image specified by the rect should be used.
michael@0:   nsSize mIntrinsicSize;
michael@0:   nsSize mImageSize;
michael@0: 
michael@0:   // Boolean variable to determine if the current image request has been
michael@0:   // registered with the refresh driver.
michael@0:   bool mRequestRegistered;
michael@0: 
michael@0:   nsRefPtr<imgRequestProxy> mImageRequest;
michael@0:   nsCOMPtr<imgINotificationObserver> mListener;
michael@0: 
michael@0:   int32_t mLoadFlags;
michael@0: 
michael@0:   bool mUseSrcAttr; ///< Whether or not the image src comes from an attribute.
michael@0:   bool mSuppressStyleCheck;
michael@0:   bool mFireEventOnDecode;
michael@0: }; // class nsImageBoxFrame
michael@0: 
michael@0: class nsDisplayXULImage : public nsDisplayImageContainer {
michael@0: public:
michael@0:   nsDisplayXULImage(nsDisplayListBuilder* aBuilder,
michael@0:                     nsImageBoxFrame* aFrame) :
michael@0:     nsDisplayImageContainer(aBuilder, aFrame) {
michael@0:     MOZ_COUNT_CTOR(nsDisplayXULImage);
michael@0:   }
michael@0: #ifdef NS_BUILD_REFCNT_LOGGING
michael@0:   virtual ~nsDisplayXULImage() {
michael@0:     MOZ_COUNT_DTOR(nsDisplayXULImage);
michael@0:   }
michael@0: #endif
michael@0: 
michael@0:   virtual already_AddRefed<ImageContainer> GetContainer(LayerManager* aManager,
michael@0:                                                         nsDisplayListBuilder* aBuilder) MOZ_OVERRIDE;
michael@0:   virtual void ConfigureLayer(ImageLayer* aLayer, const nsIntPoint& aOffset) MOZ_OVERRIDE;
michael@0:   virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder, bool* aSnap) MOZ_OVERRIDE
michael@0:   {
michael@0:     *aSnap = true;
michael@0:     return nsRect(ToReferenceFrame(), Frame()->GetSize());
michael@0:   }
michael@0:   virtual void ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
michael@0:                                          const nsDisplayItemGeometry* aGeometry,
michael@0:                                          nsRegion* aInvalidRegion) MOZ_OVERRIDE;
michael@0:   // Doesn't handle HitTest because nsLeafBoxFrame already creates an
michael@0:   // event receiver for us
michael@0:   virtual void Paint(nsDisplayListBuilder* aBuilder,
michael@0:                      nsRenderingContext* aCtx) MOZ_OVERRIDE;
michael@0:   NS_DISPLAY_DECL_NAME("XULImage", TYPE_XUL_IMAGE)
michael@0: };
michael@0: 
michael@0: #endif /* nsImageBoxFrame_h___ */