1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/layers/client/ClientContainerLayer.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,199 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef GFX_CLIENTCONTAINERLAYER_H
1.10 +#define GFX_CLIENTCONTAINERLAYER_H
1.11 +
1.12 +#include <stdint.h> // for uint32_t
1.13 +#include "ClientLayerManager.h" // for ClientLayerManager, etc
1.14 +#include "Layers.h" // for Layer, ContainerLayer, etc
1.15 +#include "gfxPrefs.h" // for gfxPrefs
1.16 +#include "nsDebug.h" // for NS_ASSERTION
1.17 +#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc
1.18 +#include "nsISupportsUtils.h" // for NS_ADDREF, NS_RELEASE
1.19 +#include "nsRegion.h" // for nsIntRegion
1.20 +#include "nsTArray.h" // for nsAutoTArray
1.21 +
1.22 +namespace mozilla {
1.23 +namespace layers {
1.24 +
1.25 +class ShadowableLayer;
1.26 +
1.27 +class ClientContainerLayer : public ContainerLayer,
1.28 + public ClientLayer
1.29 +{
1.30 +public:
1.31 + ClientContainerLayer(ClientLayerManager* aManager) :
1.32 + ContainerLayer(aManager,
1.33 + static_cast<ClientLayer*>(MOZ_THIS_IN_INITIALIZER_LIST()))
1.34 + {
1.35 + MOZ_COUNT_CTOR(ClientContainerLayer);
1.36 + mSupportsComponentAlphaChildren = true;
1.37 + }
1.38 + virtual ~ClientContainerLayer()
1.39 + {
1.40 + while (mFirstChild) {
1.41 + ContainerLayer::RemoveChild(mFirstChild);
1.42 + }
1.43 +
1.44 + MOZ_COUNT_DTOR(ClientContainerLayer);
1.45 + }
1.46 +
1.47 + virtual void RenderLayer()
1.48 + {
1.49 + if (GetMaskLayer()) {
1.50 + ToClientLayer(GetMaskLayer())->RenderLayer();
1.51 + }
1.52 +
1.53 + // Setup mSupportsComponentAlphaChildren in the same way
1.54 + // that ContainerLayerComposite will do.
1.55 + if (UseIntermediateSurface()) {
1.56 + if (GetEffectiveVisibleRegion().GetNumRects() != 1 ||
1.57 + !(GetContentFlags() & Layer::CONTENT_OPAQUE))
1.58 + {
1.59 + gfx::Matrix transform;
1.60 + if (HasOpaqueAncestorLayer(this) &&
1.61 + GetEffectiveTransform().Is2D(&transform) &&
1.62 + !gfx::ThebesMatrix(transform).HasNonIntegerTranslation()) {
1.63 + SetSupportsComponentAlphaChildren(
1.64 + gfxPrefs::ComponentAlphaEnabled());
1.65 + }
1.66 + }
1.67 + } else {
1.68 + SetSupportsComponentAlphaChildren(
1.69 + (GetContentFlags() & Layer::CONTENT_OPAQUE) ||
1.70 + (GetParent() && GetParent()->SupportsComponentAlphaChildren()));
1.71 + }
1.72 +
1.73 + nsAutoTArray<Layer*, 12> children;
1.74 + SortChildrenBy3DZOrder(children);
1.75 +
1.76 + for (uint32_t i = 0; i < children.Length(); i++) {
1.77 + Layer* child = children.ElementAt(i);
1.78 + if (child->GetEffectiveVisibleRegion().IsEmpty()) {
1.79 + continue;
1.80 + }
1.81 +
1.82 + ToClientLayer(child)->RenderLayer();
1.83 +
1.84 + if (!ClientManager()->GetRepeatTransaction() &&
1.85 + !child->GetInvalidRegion().IsEmpty()) {
1.86 + child->Mutated();
1.87 + }
1.88 + }
1.89 + }
1.90 +
1.91 + virtual void SetVisibleRegion(const nsIntRegion& aRegion)
1.92 + {
1.93 + NS_ASSERTION(ClientManager()->InConstruction(),
1.94 + "Can only set properties in construction phase");
1.95 + ContainerLayer::SetVisibleRegion(aRegion);
1.96 + }
1.97 + virtual bool InsertAfter(Layer* aChild, Layer* aAfter) MOZ_OVERRIDE
1.98 + {
1.99 + if(!ClientManager()->InConstruction()) {
1.100 + NS_ERROR("Can only set properties in construction phase");
1.101 + return false;
1.102 + }
1.103 +
1.104 + if (!ContainerLayer::InsertAfter(aChild, aAfter)) {
1.105 + return false;
1.106 + }
1.107 +
1.108 + ClientManager()->AsShadowForwarder()->InsertAfter(ClientManager()->Hold(this),
1.109 + ClientManager()->Hold(aChild),
1.110 + aAfter ? ClientManager()->Hold(aAfter) : nullptr);
1.111 + return true;
1.112 + }
1.113 +
1.114 + virtual bool RemoveChild(Layer* aChild) MOZ_OVERRIDE
1.115 + {
1.116 + if (!ClientManager()->InConstruction()) {
1.117 + NS_ERROR("Can only set properties in construction phase");
1.118 + return false;
1.119 + }
1.120 + // hold on to aChild before we remove it!
1.121 + ShadowableLayer *heldChild = ClientManager()->Hold(aChild);
1.122 + if (!ContainerLayer::RemoveChild(aChild)) {
1.123 + return false;
1.124 + }
1.125 + ClientManager()->AsShadowForwarder()->RemoveChild(ClientManager()->Hold(this), heldChild);
1.126 + return true;
1.127 + }
1.128 +
1.129 + virtual bool RepositionChild(Layer* aChild, Layer* aAfter) MOZ_OVERRIDE
1.130 + {
1.131 + if (!ClientManager()->InConstruction()) {
1.132 + NS_ERROR("Can only set properties in construction phase");
1.133 + return false;
1.134 + }
1.135 + if (!ContainerLayer::RepositionChild(aChild, aAfter)) {
1.136 + return false;
1.137 + }
1.138 + ClientManager()->AsShadowForwarder()->RepositionChild(ClientManager()->Hold(this),
1.139 + ClientManager()->Hold(aChild),
1.140 + aAfter ? ClientManager()->Hold(aAfter) : nullptr);
1.141 + return true;
1.142 + }
1.143 +
1.144 + virtual Layer* AsLayer() { return this; }
1.145 + virtual ShadowableLayer* AsShadowableLayer() { return this; }
1.146 +
1.147 + virtual void ComputeEffectiveTransforms(const gfx::Matrix4x4& aTransformToSurface)
1.148 + {
1.149 + DefaultComputeEffectiveTransforms(aTransformToSurface);
1.150 + }
1.151 +
1.152 + void ForceIntermediateSurface() { mUseIntermediateSurface = true; }
1.153 +
1.154 + void SetSupportsComponentAlphaChildren(bool aSupports) { mSupportsComponentAlphaChildren = aSupports; }
1.155 +
1.156 +protected:
1.157 + ClientLayerManager* ClientManager()
1.158 + {
1.159 + return static_cast<ClientLayerManager*>(mManager);
1.160 + }
1.161 +};
1.162 +
1.163 +class ClientRefLayer : public RefLayer,
1.164 + public ClientLayer {
1.165 +public:
1.166 + ClientRefLayer(ClientLayerManager* aManager) :
1.167 + RefLayer(aManager,
1.168 + static_cast<ClientLayer*>(MOZ_THIS_IN_INITIALIZER_LIST()))
1.169 + {
1.170 + MOZ_COUNT_CTOR(ClientRefLayer);
1.171 + }
1.172 + virtual ~ClientRefLayer()
1.173 + {
1.174 + MOZ_COUNT_DTOR(ClientRefLayer);
1.175 + }
1.176 +
1.177 + virtual Layer* AsLayer() { return this; }
1.178 + virtual ShadowableLayer* AsShadowableLayer() { return this; }
1.179 +
1.180 + virtual void Disconnect()
1.181 + {
1.182 + ClientLayer::Disconnect();
1.183 + }
1.184 +
1.185 + virtual void RenderLayer() { }
1.186 +
1.187 + virtual void ComputeEffectiveTransforms(const gfx::Matrix4x4& aTransformToSurface)
1.188 + {
1.189 + DefaultComputeEffectiveTransforms(aTransformToSurface);
1.190 + }
1.191 +
1.192 +private:
1.193 + ClientLayerManager* ClientManager()
1.194 + {
1.195 + return static_cast<ClientLayerManager*>(mManager);
1.196 + }
1.197 +};
1.198 +
1.199 +}
1.200 +}
1.201 +
1.202 +#endif
