michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef GFX_CLIENTTHEBESLAYER_H
michael@0: #define GFX_CLIENTTHEBESLAYER_H
michael@0: 
michael@0: #include "ClientLayerManager.h"         // for ClientLayerManager, etc
michael@0: #include "Layers.h"                     // for ThebesLayer, etc
michael@0: #include "RotatedBuffer.h"              // for RotatedContentBuffer, etc
michael@0: #include "mozilla/Attributes.h"         // for MOZ_OVERRIDE
michael@0: #include "mozilla/RefPtr.h"             // for RefPtr
michael@0: #include "mozilla/layers/ContentClient.h"  // for ContentClient
michael@0: #include "mozilla/mozalloc.h"           // for operator delete
michael@0: #include "nsDebug.h"                    // for NS_ASSERTION
michael@0: #include "nsISupportsImpl.h"            // for MOZ_COUNT_CTOR, etc
michael@0: #include "nsRegion.h"                   // for nsIntRegion
michael@0: #include "mozilla/layers/PLayerTransaction.h" // for ThebesLayerAttributes
michael@0: 
michael@0: class gfxContext;
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace layers {
michael@0: 
michael@0: class CompositableClient;
michael@0: class ShadowableLayer;
michael@0: class SpecificLayerAttributes;
michael@0: 
michael@0: class ClientThebesLayer : public ThebesLayer, 
michael@0:                           public ClientLayer {
michael@0: public:
michael@0:   typedef RotatedContentBuffer::PaintState PaintState;
michael@0:   typedef RotatedContentBuffer::ContentType ContentType;
michael@0: 
michael@0:   ClientThebesLayer(ClientLayerManager* aLayerManager) :
michael@0:     ThebesLayer(aLayerManager,
michael@0:                 static_cast<ClientLayer*>(MOZ_THIS_IN_INITIALIZER_LIST())),
michael@0:     mContentClient(nullptr)
michael@0:   {
michael@0:     MOZ_COUNT_CTOR(ClientThebesLayer);
michael@0:   }
michael@0:   virtual ~ClientThebesLayer()
michael@0:   {
michael@0:     if (mContentClient) {
michael@0:       mContentClient->OnDetach();
michael@0:       mContentClient = nullptr;
michael@0:     }
michael@0:     MOZ_COUNT_DTOR(ClientThebesLayer);
michael@0:   }
michael@0: 
michael@0:   virtual void SetVisibleRegion(const nsIntRegion& aRegion)
michael@0:   {
michael@0:     NS_ASSERTION(ClientManager()->InConstruction(),
michael@0:                  "Can only set properties in construction phase");
michael@0:     ThebesLayer::SetVisibleRegion(aRegion);
michael@0:   }
michael@0:   virtual void InvalidateRegion(const nsIntRegion& aRegion)
michael@0:   {
michael@0:     NS_ASSERTION(ClientManager()->InConstruction(),
michael@0:                  "Can only set properties in construction phase");
michael@0:     mInvalidRegion.Or(mInvalidRegion, aRegion);
michael@0:     mInvalidRegion.SimplifyOutward(20);
michael@0:     mValidRegion.Sub(mValidRegion, mInvalidRegion);
michael@0:   }
michael@0: 
michael@0:   virtual void RenderLayer();
michael@0: 
michael@0:   virtual void ClearCachedResources()
michael@0:   {
michael@0:     if (mContentClient) {
michael@0:       mContentClient->Clear();
michael@0:     }
michael@0:     mValidRegion.SetEmpty();
michael@0:     DestroyBackBuffer();
michael@0:   }
michael@0:   
michael@0:   virtual void FillSpecificAttributes(SpecificLayerAttributes& aAttrs)
michael@0:   {
michael@0:     aAttrs = ThebesLayerAttributes(GetValidRegion());
michael@0:   }
michael@0:   
michael@0:   ClientLayerManager* ClientManager()
michael@0:   {
michael@0:     return static_cast<ClientLayerManager*>(mManager);
michael@0:   }
michael@0:   
michael@0:   virtual Layer* AsLayer() { return this; }
michael@0:   virtual ShadowableLayer* AsShadowableLayer() { return this; }
michael@0: 
michael@0:   virtual CompositableClient* GetCompositableClient() MOZ_OVERRIDE
michael@0:   {
michael@0:     return mContentClient;
michael@0:   }
michael@0: 
michael@0:   virtual void Disconnect()
michael@0:   {
michael@0:     mContentClient = nullptr;
michael@0:     ClientLayer::Disconnect();
michael@0:   }
michael@0: 
michael@0: protected:
michael@0:   void PaintThebes();
michael@0:   
michael@0:   void DestroyBackBuffer()
michael@0:   {
michael@0:     mContentClient = nullptr;
michael@0:   }
michael@0: 
michael@0:   RefPtr<ContentClient> mContentClient;
michael@0: };
michael@0: 
michael@0: }
michael@0: }
michael@0: 
michael@0: #endif