/src/mozilla-central/gfx/layers/client/ClientCanvasLayer.h
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1 | | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
2 | | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
3 | | /* This Source Code Form is subject to the terms of the Mozilla Public |
4 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
5 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
6 | | |
7 | | #ifndef GFX_CLIENTCANVASLAYER_H |
8 | | #define GFX_CLIENTCANVASLAYER_H |
9 | | |
10 | | #include "ClientCanvasRenderer.h" |
11 | | #include "ClientLayerManager.h" // for ClientLayerManager, etc |
12 | | #include "Layers.h" // for CanvasLayer, etc |
13 | | #include "mozilla/Attributes.h" // for override |
14 | | #include "mozilla/layers/CanvasClient.h" // for CanvasClient, etc |
15 | | #include "mozilla/layers/LayersMessages.h" // for CanvasLayerAttributes, etc |
16 | | #include "mozilla/mozalloc.h" // for operator delete |
17 | | #include "nsDebug.h" // for NS_ASSERTION |
18 | | #include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc |
19 | | |
20 | | namespace mozilla { |
21 | | namespace layers { |
22 | | |
23 | | class CompositableClient; |
24 | | class ShadowableLayer; |
25 | | |
26 | | class ClientCanvasLayer : public CanvasLayer, |
27 | | public ClientLayer |
28 | | { |
29 | | public: |
30 | | explicit ClientCanvasLayer(ClientLayerManager* aLayerManager) : |
31 | | CanvasLayer(aLayerManager, static_cast<ClientLayer*>(this)) |
32 | 0 | { |
33 | 0 | MOZ_COUNT_CTOR(ClientCanvasLayer); |
34 | 0 | } |
35 | | |
36 | | CanvasRenderer* CreateCanvasRendererInternal() override; |
37 | | |
38 | | protected: |
39 | | virtual ~ClientCanvasLayer(); |
40 | | |
41 | | public: |
42 | | virtual void SetVisibleRegion(const LayerIntRegion& aRegion) override |
43 | 0 | { |
44 | 0 | NS_ASSERTION(ClientManager()->InConstruction(), |
45 | 0 | "Can only set properties in construction phase"); |
46 | 0 | CanvasLayer::SetVisibleRegion(aRegion); |
47 | 0 | } |
48 | | |
49 | | virtual void RenderLayer() override; |
50 | | |
51 | | virtual void ClearCachedResources() override |
52 | 0 | { |
53 | 0 | mCanvasRenderer->ClearCachedResources(); |
54 | 0 | } |
55 | | |
56 | | virtual void HandleMemoryPressure() override |
57 | 0 | { |
58 | 0 | mCanvasRenderer->ClearCachedResources(); |
59 | 0 | } |
60 | | |
61 | | virtual void FillSpecificAttributes(SpecificLayerAttributes& aAttrs) override |
62 | 0 | { |
63 | 0 | aAttrs = CanvasLayerAttributes(mSamplingFilter, mBounds); |
64 | 0 | } |
65 | | |
66 | 0 | virtual Layer* AsLayer() override { return this; } |
67 | 0 | virtual ShadowableLayer* AsShadowableLayer() override { return this; } |
68 | | |
69 | | virtual void Disconnect() override |
70 | 0 | { |
71 | 0 | mCanvasRenderer->Destroy(); |
72 | 0 | } |
73 | | |
74 | | virtual CompositableClient* GetCompositableClient() override |
75 | 0 | { |
76 | 0 | ClientCanvasRenderer* canvasRenderer = mCanvasRenderer->AsClientCanvasRenderer(); |
77 | 0 | MOZ_ASSERT(canvasRenderer); |
78 | 0 | return canvasRenderer->GetCanvasClient(); |
79 | 0 | } |
80 | | |
81 | | protected: |
82 | | ClientLayerManager* ClientManager() |
83 | 0 | { |
84 | 0 | return static_cast<ClientLayerManager*>(mManager); |
85 | 0 | } |
86 | | }; |
87 | | |
88 | | } // namespace layers |
89 | | } // namespace mozilla |
90 | | |
91 | | #endif |