From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001 From: "Matt A. Tobin" Date: Fri, 2 Feb 2018 04:16:08 -0500 Subject: Add m-esr52 at 52.6.0 --- layout/xul/nsImageBoxFrame.h | 163 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 163 insertions(+) create mode 100644 layout/xul/nsImageBoxFrame.h (limited to 'layout/xul/nsImageBoxFrame.h') diff --git a/layout/xul/nsImageBoxFrame.h b/layout/xul/nsImageBoxFrame.h new file mode 100644 index 000000000..7faccccae --- /dev/null +++ b/layout/xul/nsImageBoxFrame.h @@ -0,0 +1,163 @@ +/* -*- 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 mImageRequest; + nsCOMPtr 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 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___ */ -- cgit v1.2.3