|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/* -*- 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 : public imgINotificationObserver,
public imgIOnloadBlocker
{
public:
nsImageBoxListener();
virtual ~nsImageBoxListener();
NS_DECL_ISUPPORTS
NS_DECL_IMGINOTIFICATIONOBSERVER
NS_DECL_IMGIONLOADBLOCKER
void SetFrame(nsImageBoxFrame *frame) { mFrame = frame; }
private:
nsImageBoxFrame *mFrame;
};
class nsImageBoxFrame : public nsLeafBoxFrame
{
public:
typedef mozilla::layers::LayerManager LayerManager;
friend class nsDisplayXULImage;
NS_DECL_FRAMEARENA_HELPERS
virtual nsSize GetPrefSize(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
virtual nsSize GetMinSize(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
virtual nscoord GetBoxAscent(nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
virtual void MarkIntrinsicWidthsDirty() MOZ_OVERRIDE;
nsresult Notify(imgIRequest *aRequest, int32_t aType, const nsIntRect* aData);
friend nsIFrame* NS_NewImageBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
virtual void Init(nsIContent* aContent,
nsIFrame* aParent,
nsIFrame* asPrevInFlow) MOZ_OVERRIDE;
NS_IMETHOD AttributeChanged(int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType) MOZ_OVERRIDE;
virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext) MOZ_OVERRIDE;
virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
virtual nsIAtom* GetType() const MOZ_OVERRIDE;
#ifdef DEBUG
NS_IMETHOD GetFrameName(nsAString& aResult) const MOZ_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) MOZ_OVERRIDE;
virtual ~nsImageBoxFrame();
void PaintImage(nsRenderingContext& aRenderingContext,
const nsRect& aDirtyRect,
nsPoint aPt, uint32_t aFlags);
already_AddRefed<mozilla::layers::ImageContainer> GetContainer(LayerManager* aManager);
protected:
nsImageBoxFrame(nsIPresShell* aShell, nsStyleContext* aContext);
virtual void GetImageSize();
private:
nsresult OnStartContainer(imgIRequest *request, imgIContainer *image);
nsresult OnStopDecode(imgIRequest *request);
nsresult OnStopRequest(imgIRequest *request, nsresult status);
nsresult OnImageIsAnimated(imgIRequest* aRequest);
nsresult FrameChanged(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;
// Boolean variable to determine if the current image request has been
// registered with the refresh driver.
bool mRequestRegistered;
nsRefPtr<imgRequestProxy> mImageRequest;
nsCOMPtr<imgINotificationObserver> mListener;
int32_t mLoadFlags;
bool mUseSrcAttr; ///< Whether or not the image src comes from an attribute.
bool mSuppressStyleCheck;
bool mFireEventOnDecode;
}; // 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 already_AddRefed<ImageContainer> GetContainer(LayerManager* aManager,
nsDisplayListBuilder* aBuilder) MOZ_OVERRIDE;
virtual void ConfigureLayer(ImageLayer* aLayer, const nsIntPoint& aOffset) MOZ_OVERRIDE;
virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder, bool* aSnap) MOZ_OVERRIDE
{
*aSnap = true;
return nsRect(ToReferenceFrame(), Frame()->GetSize());
}
virtual void ComputeInvalidationRegion(nsDisplayListBuilder* aBuilder,
const nsDisplayItemGeometry* aGeometry,
nsRegion* aInvalidRegion) MOZ_OVERRIDE;
// Doesn't handle HitTest because nsLeafBoxFrame already creates an
// event receiver for us
virtual void Paint(nsDisplayListBuilder* aBuilder,
nsRenderingContext* aCtx) MOZ_OVERRIDE;
NS_DISPLAY_DECL_NAME("XULImage", TYPE_XUL_IMAGE)
};
#endif /* nsImageBoxFrame_h___ */
|