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
|
/* -*- 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 mozilla_image_ImageWrapper_h
#define mozilla_image_ImageWrapper_h
#include "mozilla/MemoryReporting.h"
#include "Image.h"
namespace mozilla {
namespace image {
/**
* Abstract superclass for Images that wrap other Images.
*/
class ImageWrapper : public Image {
public:
NS_DECL_ISUPPORTS
NS_DECL_IMGICONTAINER
// Inherited methods from Image.
virtual already_AddRefed<ProgressTracker> GetProgressTracker() override;
virtual size_t SizeOfSourceWithComputedFallback(
SizeOfState& aState) const override;
virtual void CollectSizeOfSurfaces(nsTArray<SurfaceMemoryCounter>& aCounters,
MallocSizeOf aMallocSizeOf) const override;
virtual void IncrementAnimationConsumers() override;
virtual void DecrementAnimationConsumers() override;
#ifdef DEBUG
virtual uint32_t GetAnimationConsumers() override;
#endif
virtual nsresult OnImageDataAvailable(nsIRequest* aRequest,
nsIInputStream* aInStr,
uint64_t aSourceOffset,
uint32_t aCount) override;
virtual nsresult OnImageDataComplete(nsIRequest* aRequest, nsresult aStatus,
bool aLastPart) override;
virtual void OnSurfaceDiscarded(const SurfaceKey& aSurfaceKey) override;
virtual void SetInnerWindowID(uint64_t aInnerWindowId) override;
virtual uint64_t InnerWindowID() const override;
virtual bool HasError() override;
virtual void SetHasError() override;
nsIURI* GetURI() const override;
protected:
explicit ImageWrapper(Image* aInnerImage) : mInnerImage(aInnerImage) {
MOZ_ASSERT(aInnerImage, "Need an image to wrap");
}
virtual ~ImageWrapper() {}
/**
* Returns a weak reference to the inner image wrapped by this ImageWrapper.
*/
Image* InnerImage() const { return mInnerImage.get(); }
void SetInnerImage(Image* aInnerImage) {
MOZ_ASSERT(aInnerImage, "Need an image to wrap");
mInnerImage = aInnerImage;
}
private:
RefPtr<Image> mInnerImage;
};
} // namespace image
} // namespace mozilla
#endif // mozilla_image_ImageWrapper_h
|
