/* -*- 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 nsImageBoxFrame_h___ #define nsImageBoxFrame_h___ #include "mozilla/Attributes.h" #include "nsLeafBoxFrame.h" #include "imgILoader.h" #include "imgIRequest.h" #include "imgIContainer.h" #include "imgINotificationObserver.h" #include "imgIOnloadBlocker.h" class imgRequestProxy; class nsImageBoxFrame; class nsDisplayXULImage; class nsImageBoxListener final : public imgINotificationObserver, public imgIOnloadBlocker { public: nsImageBoxListener(); NS_DECL_ISUPPORTS NS_DECL_IMGINOTIFICATIONOBSERVER NS_DECL_IMGIONLOADBLOCKER void SetFrame(nsImageBoxFrame *frame) { mFrame = frame; } private: virtual ~nsImageBoxListener(); nsImageBoxFrame *mFrame; }; class nsImageBoxFrame final : public nsLeafBoxFrame { public: typedef mozilla::image::DrawResult DrawResult; typedef mozilla::layers::ImageContainer ImageContainer; typedef mozilla::layers::LayerManager LayerManager; friend class nsDisplayXULImage; NS_DECL_FRAMEARENA_HELPERS virtual nsSize GetXULPrefSize(nsBoxLayoutState& aBoxLayoutState) override; virtual nsSize GetXULMinSize(nsBoxLayoutState& aBoxLayoutState) override; virtual nscoord GetXULBoxAscent(nsBoxLayoutState& aBoxLayoutState) override; virtual void MarkIntrinsicISizesDirty() override; nsresult Notify(imgIRequest *aRequest, int32_t aType, const nsIntRect* aData); friend nsIFrame* NS_NewImageBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext); virtual void Init(nsIContent* aContent, nsContainerFrame* aParent, nsIFrame* asPrevInFlow) override; virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsIAtom* aAttribute, int32_t aModType) override; virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext) override; virtual void DestroyFrom(nsIFrame* aDestructRoot) override; virtual nsIAtom* GetType() const override; #ifdef DEBUG_FRAME_DUMP virtual nsresult GetFrameName(nsAString& aResult) const override; #endif /** * Update mUseSrcAttr from appropriate content attributes or from * style, throw away the current image, and load the appropriate * image. * */ void UpdateImage(); /** * Update mLoadFlags from content attributes. Does not attempt to reload the * image using the new load flags. */ void UpdateLoadFlags(); virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder, const nsRect& aDirtyRect, const nsDisplayListSet& aLists) override; virtual ~nsImageBoxFrame(); DrawResult PaintImage(nsRenderingContext& aRenderingContext, const nsRect& aDirtyRect, nsPoint aPt, uint32_t aFlags); bool CanOptimizeToImageLayer(); protected: explicit nsImageBoxFrame(nsStyleContext* aContext); virtual void GetImageSize(); private: nsresult OnSizeAvailable(imgIRequest* aRequest, imgIContainer* aImage); nsresult OnDecodeComplete(imgIRequest* aRequest); nsresult OnLoadComplete(imgIRequest* aRequest, nsresult aStatus); nsresult OnImageIsAnimated(imgIRequest* aRequest); nsresult OnFrameUpdate(imgIRequest* aRequest); nsRect mSubRect; ///< If set, indicates that only the portion of the image specified by the rect should be used. nsSize mIntrinsicSize; nsSize mImageSize; RefPtr<imgRequestProxy> mImageRequest; nsCOMPtr<imgINotificationObserver> mListener; int32_t mLoadFlags; // Boolean variable to determine if the current image request has been // registered with the refresh driver. bool mRequestRegistered; bool mUseSrcAttr; ///< Whether or not the image src comes from an attribute. bool mSuppressStyleCheck; }; // class nsImageBoxFrame class nsDisplayXULImage : public nsDisplayImageContainer { public: nsDisplayXULImage(nsDisplayListBuilder* aBuilder, nsImageBoxFrame* aFrame) : nsDisplayImageContainer(aBuilder, aFrame) { MOZ_COUNT_CTOR(nsDisplayXULImage); } #ifdef NS_BUILD_REFCNT_LOGGING virtual ~nsDisplayXULImage() { MOZ_COUNT_DTOR(nsDisplayXULImage); } #endif virtual bool CanOptimizeToImageLayer(LayerManager* aManager, nsDisplayListBuilder* aBuilder) override; virtual already_AddRefed<imgIContainer> GetImage() override; virtual nsRect GetDestRect() override; virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder, bool* aSnap) override { *aSnap = true; return nsRect(ToReferenceFrame(), Frame()->GetSize()); } virtual nsDisplayItemGeometry* AllocateGeometry(nsDisplayListBuilder* aBuilder) override; virtual void ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder, const nsDisplayItemGeometry* aGeometry, nsRegion* aInvalidRegion) override; // Doesn't handle HitTest because nsLeafBoxFrame already creates an // event receiver for us virtual void Paint(nsDisplayListBuilder* aBuilder, nsRenderingContext* aCtx) override; NS_DISPLAY_DECL_NAME("XULImage", TYPE_XUL_IMAGE) }; #endif /* nsImageBoxFrame_h___ */