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comparison: gfx/layers/client/ClientContainerLayer.h
gfx/layers/client/ClientContainerLayer.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 GFX_CLIENTCONTAINERLAYER_H | |
| 7 #define GFX_CLIENTCONTAINERLAYER_H | |
| 8 | |
| 9 #include <stdint.h> // for uint32_t | |
| 10 #include "ClientLayerManager.h" // for ClientLayerManager, etc | |
| 11 #include "Layers.h" // for Layer, ContainerLayer, etc | |
| 12 #include "gfxPrefs.h" // for gfxPrefs | |
| 13 #include "nsDebug.h" // for NS_ASSERTION | |
| 14 #include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc | |
| 15 #include "nsISupportsUtils.h" // for NS_ADDREF, NS_RELEASE | |
| 16 #include "nsRegion.h" // for nsIntRegion | |
| 17 #include "nsTArray.h" // for nsAutoTArray | |
| 18 | |
| 19 namespace mozilla { | |
| 20 namespace layers { | |
| 21 | |
| 22 class ShadowableLayer; | |
| 23 | |
| 24 class ClientContainerLayer : public ContainerLayer, | |
| 25 public ClientLayer | |
| 26 { | |
| 27 public: | |
| 28 ClientContainerLayer(ClientLayerManager* aManager) : | |
| 29 ContainerLayer(aManager, | |
| 30 static_cast<ClientLayer*>(MOZ_THIS_IN_INITIALIZER_LIST())) | |
| 31 { | |
| 32 MOZ_COUNT_CTOR(ClientContainerLayer); | |
| 33 mSupportsComponentAlphaChildren = true; | |
| 34 } | |
| 35 virtual ~ClientContainerLayer() | |
| 36 { | |
| 37 while (mFirstChild) { | |
| 38 ContainerLayer::RemoveChild(mFirstChild); | |
| 39 } | |
| 40 | |
| 41 MOZ_COUNT_DTOR(ClientContainerLayer); | |
| 42 } | |
| 43 | |
| 44 virtual void RenderLayer() | |
| 45 { | |
| 46 if (GetMaskLayer()) { | |
| 47 ToClientLayer(GetMaskLayer())->RenderLayer(); | |
| 48 } | |
| 49 | |
| 50 // Setup mSupportsComponentAlphaChildren in the same way | |
| 51 // that ContainerLayerComposite will do. | |
| 52 if (UseIntermediateSurface()) { | |
| 53 if (GetEffectiveVisibleRegion().GetNumRects() != 1 || | |
| 54 !(GetContentFlags() & Layer::CONTENT_OPAQUE)) | |
| 55 { | |
| 56 gfx::Matrix transform; | |
| 57 if (HasOpaqueAncestorLayer(this) && | |
| 58 GetEffectiveTransform().Is2D(&transform) && | |
| 59 !gfx::ThebesMatrix(transform).HasNonIntegerTranslation()) { | |
| 60 SetSupportsComponentAlphaChildren( | |
| 61 gfxPrefs::ComponentAlphaEnabled()); | |
| 62 } | |
| 63 } | |
| 64 } else { | |
| 65 SetSupportsComponentAlphaChildren( | |
| 66 (GetContentFlags() & Layer::CONTENT_OPAQUE) || | |
| 67 (GetParent() && GetParent()->SupportsComponentAlphaChildren())); | |
| 68 } | |
| 69 | |
| 70 nsAutoTArray<Layer*, 12> children; | |
| 71 SortChildrenBy3DZOrder(children); | |
| 72 | |
| 73 for (uint32_t i = 0; i < children.Length(); i++) { | |
| 74 Layer* child = children.ElementAt(i); | |
| 75 if (child->GetEffectiveVisibleRegion().IsEmpty()) { | |
| 76 continue; | |
| 77 } | |
| 78 | |
| 79 ToClientLayer(child)->RenderLayer(); | |
| 80 | |
| 81 if (!ClientManager()->GetRepeatTransaction() && | |
| 82 !child->GetInvalidRegion().IsEmpty()) { | |
| 83 child->Mutated(); | |
| 84 } | |
| 85 } | |
| 86 } | |
| 87 | |
| 88 virtual void SetVisibleRegion(const nsIntRegion& aRegion) | |
| 89 { | |
| 90 NS_ASSERTION(ClientManager()->InConstruction(), | |
| 91 "Can only set properties in construction phase"); | |
| 92 ContainerLayer::SetVisibleRegion(aRegion); | |
| 93 } | |
| 94 virtual bool InsertAfter(Layer* aChild, Layer* aAfter) MOZ_OVERRIDE | |
| 95 { | |
| 96 if(!ClientManager()->InConstruction()) { | |
| 97 NS_ERROR("Can only set properties in construction phase"); | |
| 98 return false; | |
| 99 } | |
| 100 | |
| 101 if (!ContainerLayer::InsertAfter(aChild, aAfter)) { | |
| 102 return false; | |
| 103 } | |
| 104 | |
| 105 ClientManager()->AsShadowForwarder()->InsertAfter(ClientManager()->Hold(this), | |
| 106 ClientManager()->Hold(aChild), | |
| 107 aAfter ? ClientManager()->Hold(aAfter) : nullptr); | |
| 108 return true; | |
| 109 } | |
| 110 | |
| 111 virtual bool RemoveChild(Layer* aChild) MOZ_OVERRIDE | |
| 112 { | |
| 113 if (!ClientManager()->InConstruction()) { | |
| 114 NS_ERROR("Can only set properties in construction phase"); | |
| 115 return false; | |
| 116 } | |
| 117 // hold on to aChild before we remove it! | |
| 118 ShadowableLayer *heldChild = ClientManager()->Hold(aChild); | |
| 119 if (!ContainerLayer::RemoveChild(aChild)) { | |
| 120 return false; | |
| 121 } | |
| 122 ClientManager()->AsShadowForwarder()->RemoveChild(ClientManager()->Hold(this), heldChild); | |
| 123 return true; | |
| 124 } | |
| 125 | |
| 126 virtual bool RepositionChild(Layer* aChild, Layer* aAfter) MOZ_OVERRIDE | |
| 127 { | |
| 128 if (!ClientManager()->InConstruction()) { | |
| 129 NS_ERROR("Can only set properties in construction phase"); | |
| 130 return false; | |
| 131 } | |
| 132 if (!ContainerLayer::RepositionChild(aChild, aAfter)) { | |
| 133 return false; | |
| 134 } | |
| 135 ClientManager()->AsShadowForwarder()->RepositionChild(ClientManager()->Hold(this), | |
| 136 ClientManager()->Hold(aChild), | |
| 137 aAfter ? ClientManager()->Hold(aAfter) : nullptr); | |
| 138 return true; | |
| 139 } | |
| 140 | |
| 141 virtual Layer* AsLayer() { return this; } | |
| 142 virtual ShadowableLayer* AsShadowableLayer() { return this; } | |
| 143 | |
| 144 virtual void ComputeEffectiveTransforms(const gfx::Matrix4x4& aTransformToSurface) | |
| 145 { | |
| 146 DefaultComputeEffectiveTransforms(aTransformToSurface); | |
| 147 } | |
| 148 | |
| 149 void ForceIntermediateSurface() { mUseIntermediateSurface = true; } | |
| 150 | |
| 151 void SetSupportsComponentAlphaChildren(bool aSupports) { mSupportsComponentAlphaChildren = aSupports; } | |
| 152 | |
| 153 protected: | |
| 154 ClientLayerManager* ClientManager() | |
| 155 { | |
| 156 return static_cast<ClientLayerManager*>(mManager); | |
| 157 } | |
| 158 }; | |
| 159 | |
| 160 class ClientRefLayer : public RefLayer, | |
| 161 public ClientLayer { | |
| 162 public: | |
| 163 ClientRefLayer(ClientLayerManager* aManager) : | |
| 164 RefLayer(aManager, | |
| 165 static_cast<ClientLayer*>(MOZ_THIS_IN_INITIALIZER_LIST())) | |
| 166 { | |
| 167 MOZ_COUNT_CTOR(ClientRefLayer); | |
| 168 } | |
| 169 virtual ~ClientRefLayer() | |
| 170 { | |
| 171 MOZ_COUNT_DTOR(ClientRefLayer); | |
| 172 } | |
| 173 | |
| 174 virtual Layer* AsLayer() { return this; } | |
| 175 virtual ShadowableLayer* AsShadowableLayer() { return this; } | |
| 176 | |
| 177 virtual void Disconnect() | |
| 178 { | |
| 179 ClientLayer::Disconnect(); | |
| 180 } | |
| 181 | |
| 182 virtual void RenderLayer() { } | |
| 183 | |
| 184 virtual void ComputeEffectiveTransforms(const gfx::Matrix4x4& aTransformToSurface) | |
| 185 { | |
| 186 DefaultComputeEffectiveTransforms(aTransformToSurface); | |
| 187 } | |
| 188 | |
| 189 private: | |
| 190 ClientLayerManager* ClientManager() | |
| 191 { | |
| 192 return static_cast<ClientLayerManager*>(mManager); | |
| 193 } | |
| 194 }; | |
| 195 | |
| 196 } | |
| 197 } | |
| 198 | |
| 199 #endif |
