/src/mozilla-central/image/DynamicImage.h
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1 | | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
2 | | /* This Source Code Form is subject to the terms of the Mozilla Public |
3 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
4 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
5 | | |
6 | | #ifndef mozilla_image_DynamicImage_h |
7 | | #define mozilla_image_DynamicImage_h |
8 | | |
9 | | #include "mozilla/MemoryReporting.h" |
10 | | #include "gfxDrawable.h" |
11 | | #include "Image.h" |
12 | | |
13 | | namespace mozilla { |
14 | | namespace image { |
15 | | |
16 | | /** |
17 | | * An Image that is dynamically created. The content of the image is provided by |
18 | | * a gfxDrawable. It's anticipated that most uses of DynamicImage will be |
19 | | * ephemeral. |
20 | | */ |
21 | | class DynamicImage : public Image |
22 | | { |
23 | | public: |
24 | | NS_DECL_ISUPPORTS |
25 | | NS_DECL_IMGICONTAINER |
26 | | |
27 | | explicit DynamicImage(gfxDrawable* aDrawable) |
28 | | : mDrawable(aDrawable) |
29 | 0 | { |
30 | 0 | MOZ_ASSERT(aDrawable, "Must have a gfxDrawable to wrap"); |
31 | 0 | } |
32 | | |
33 | | // Inherited methods from Image. |
34 | | nsresult GetNativeSizes(nsTArray<gfx::IntSize>& aNativeSizes) const override; |
35 | | size_t GetNativeSizesLength() const override; |
36 | | virtual already_AddRefed<ProgressTracker> GetProgressTracker() override; |
37 | | virtual size_t SizeOfSourceWithComputedFallback( |
38 | | SizeOfState& aState) const override; |
39 | | virtual void CollectSizeOfSurfaces(nsTArray<SurfaceMemoryCounter>& aCounters, |
40 | | MallocSizeOf aMallocSizeOf) const override; |
41 | | |
42 | | virtual void IncrementAnimationConsumers() override; |
43 | | virtual void DecrementAnimationConsumers() override; |
44 | | #ifdef DEBUG |
45 | | virtual uint32_t GetAnimationConsumers() override; |
46 | | #endif |
47 | | |
48 | | virtual nsresult OnImageDataAvailable(nsIRequest* aRequest, |
49 | | nsISupports* aContext, |
50 | | nsIInputStream* aInStr, |
51 | | uint64_t aSourceOffset, |
52 | | uint32_t aCount) override; |
53 | | virtual nsresult OnImageDataComplete(nsIRequest* aRequest, |
54 | | nsISupports* aContext, |
55 | | nsresult aStatus, |
56 | | bool aLastPart) override; |
57 | | |
58 | | virtual void OnSurfaceDiscarded(const SurfaceKey& aSurfaceKey) override; |
59 | | |
60 | | virtual void SetInnerWindowID(uint64_t aInnerWindowId) override; |
61 | | virtual uint64_t InnerWindowID() const override; |
62 | | |
63 | | virtual bool HasError() override; |
64 | | virtual void SetHasError() override; |
65 | | |
66 | | nsIURI* GetURI() const override; |
67 | | |
68 | | private: |
69 | 0 | virtual ~DynamicImage() { } |
70 | | |
71 | | RefPtr<gfxDrawable> mDrawable; |
72 | | }; |
73 | | |
74 | | } // namespace image |
75 | | } // namespace mozilla |
76 | | |
77 | | #endif // mozilla_image_DynamicImage_h |