1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/xul/nsImageBoxFrame.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,158 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +#ifndef nsImageBoxFrame_h___
1.9 +#define nsImageBoxFrame_h___
1.10 +
1.11 +#include "mozilla/Attributes.h"
1.12 +#include "nsLeafBoxFrame.h"
1.13 +
1.14 +#include "imgILoader.h"
1.15 +#include "imgIRequest.h"
1.16 +#include "imgIContainer.h"
1.17 +#include "imgINotificationObserver.h"
1.18 +#include "imgIOnloadBlocker.h"
1.19 +
1.20 +class imgRequestProxy;
1.21 +class nsImageBoxFrame;
1.22 +
1.23 +class nsDisplayXULImage;
1.24 +
1.25 +class nsImageBoxListener : public imgINotificationObserver,
1.26 + public imgIOnloadBlocker
1.27 +{
1.28 +public:
1.29 + nsImageBoxListener();
1.30 + virtual ~nsImageBoxListener();
1.31 +
1.32 + NS_DECL_ISUPPORTS
1.33 + NS_DECL_IMGINOTIFICATIONOBSERVER
1.34 + NS_DECL_IMGIONLOADBLOCKER
1.35 +
1.36 + void SetFrame(nsImageBoxFrame *frame) { mFrame = frame; }
1.37 +
1.38 +private:
1.39 + nsImageBoxFrame *mFrame;
1.40 +};
1.41 +
1.42 +class nsImageBoxFrame : public nsLeafBoxFrame
1.43 +{
1.44 +public:
1.45 + typedef mozilla::layers::LayerManager LayerManager;
1.46 +
1.47 + friend class nsDisplayXULImage;
1.48 + NS_DECL_FRAMEARENA_HELPERS
1.49 +
1.50 + virtual nsSize GetPrefSize(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
1.51 + virtual nsSize GetMinSize(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
1.52 + virtual nscoord GetBoxAscent(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
1.53 + virtual void MarkIntrinsicWidthsDirty() MOZ_OVERRIDE;
1.54 +
1.55 + nsresult Notify(imgIRequest *aRequest, int32_t aType, const nsIntRect* aData);
1.56 +
1.57 + friend nsIFrame* NS_NewImageBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
1.58 +
1.59 + virtual void Init(nsIContent* aContent,
1.60 + nsIFrame* aParent,
1.61 + nsIFrame* asPrevInFlow) MOZ_OVERRIDE;
1.62 +
1.63 + virtual nsresult AttributeChanged(int32_t aNameSpaceID,
1.64 + nsIAtom* aAttribute,
1.65 + int32_t aModType) MOZ_OVERRIDE;
1.66 +
1.67 + virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext) MOZ_OVERRIDE;
1.68 +
1.69 + virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
1.70 +
1.71 + virtual nsIAtom* GetType() const MOZ_OVERRIDE;
1.72 +#ifdef DEBUG_FRAME_DUMP
1.73 + virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
1.74 +#endif
1.75 +
1.76 + /**
1.77 + * Update mUseSrcAttr from appropriate content attributes or from
1.78 + * style, throw away the current image, and load the appropriate
1.79 + * image.
1.80 + * */
1.81 + void UpdateImage();
1.82 +
1.83 + /**
1.84 + * Update mLoadFlags from content attributes. Does not attempt to reload the
1.85 + * image using the new load flags.
1.86 + */
1.87 + void UpdateLoadFlags();
1.88 +
1.89 + virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
1.90 + const nsRect& aDirtyRect,
1.91 + const nsDisplayListSet& aLists) MOZ_OVERRIDE;
1.92 +
1.93 + virtual ~nsImageBoxFrame();
1.94 +
1.95 + void PaintImage(nsRenderingContext& aRenderingContext,
1.96 + const nsRect& aDirtyRect,
1.97 + nsPoint aPt, uint32_t aFlags);
1.98 +
1.99 + already_AddRefed<mozilla::layers::ImageContainer> GetContainer(LayerManager* aManager);
1.100 +protected:
1.101 + nsImageBoxFrame(nsIPresShell* aShell, nsStyleContext* aContext);
1.102 +
1.103 + virtual void GetImageSize();
1.104 +
1.105 +private:
1.106 + nsresult OnStartContainer(imgIRequest *request, imgIContainer *image);
1.107 + nsresult OnStopDecode(imgIRequest *request);
1.108 + nsresult OnStopRequest(imgIRequest *request, nsresult status);
1.109 + nsresult OnImageIsAnimated(imgIRequest* aRequest);
1.110 + nsresult FrameChanged(imgIRequest *aRequest);
1.111 +
1.112 + nsRect mSubRect; ///< If set, indicates that only the portion of the image specified by the rect should be used.
1.113 + nsSize mIntrinsicSize;
1.114 + nsSize mImageSize;
1.115 +
1.116 + // Boolean variable to determine if the current image request has been
1.117 + // registered with the refresh driver.
1.118 + bool mRequestRegistered;
1.119 +
1.120 + nsRefPtr<imgRequestProxy> mImageRequest;
1.121 + nsCOMPtr<imgINotificationObserver> mListener;
1.122 +
1.123 + int32_t mLoadFlags;
1.124 +
1.125 + bool mUseSrcAttr; ///< Whether or not the image src comes from an attribute.
1.126 + bool mSuppressStyleCheck;
1.127 + bool mFireEventOnDecode;
1.128 +}; // class nsImageBoxFrame
1.129 +
1.130 +class nsDisplayXULImage : public nsDisplayImageContainer {
1.131 +public:
1.132 + nsDisplayXULImage(nsDisplayListBuilder* aBuilder,
1.133 + nsImageBoxFrame* aFrame) :
1.134 + nsDisplayImageContainer(aBuilder, aFrame) {
1.135 + MOZ_COUNT_CTOR(nsDisplayXULImage);
1.136 + }
1.137 +#ifdef NS_BUILD_REFCNT_LOGGING
1.138 + virtual ~nsDisplayXULImage() {
1.139 + MOZ_COUNT_DTOR(nsDisplayXULImage);
1.140 + }
1.141 +#endif
1.142 +
1.143 + virtual already_AddRefed<ImageContainer> GetContainer(LayerManager* aManager,
1.144 + nsDisplayListBuilder* aBuilder) MOZ_OVERRIDE;
1.145 + virtual void ConfigureLayer(ImageLayer* aLayer, const nsIntPoint& aOffset) MOZ_OVERRIDE;
1.146 + virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder, bool* aSnap) MOZ_OVERRIDE
1.147 + {
1.148 + *aSnap = true;
1.149 + return nsRect(ToReferenceFrame(), Frame()->GetSize());
1.150 + }
1.151 + virtual void ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
1.152 + const nsDisplayItemGeometry* aGeometry,
1.153 + nsRegion* aInvalidRegion) MOZ_OVERRIDE;
1.154 + // Doesn't handle HitTest because nsLeafBoxFrame already creates an
1.155 + // event receiver for us
1.156 + virtual void Paint(nsDisplayListBuilder* aBuilder,
1.157 + nsRenderingContext* aCtx) MOZ_OVERRIDE;
1.158 + NS_DISPLAY_DECL_NAME("XULImage", TYPE_XUL_IMAGE)
1.159 +};
1.160 +
1.161 +#endif /* nsImageBoxFrame_h___ */
