зеркало из https://github.com/mozilla/gecko-dev.git
88 строки
2.2 KiB
C++
88 строки
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_LAYERS_LAYERTRANSACTIONCHILD_H
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#define MOZILLA_LAYERS_LAYERTRANSACTIONCHILD_H
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#include <stdint.h> // for uint32_t
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#include "mozilla/Attributes.h" // for override
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#include "mozilla/ipc/ProtocolUtils.h"
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#include "mozilla/layers/PLayerTransactionChild.h"
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#include "mozilla/RefPtr.h"
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namespace mozilla {
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namespace layout {
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class RenderFrameChild;
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} // namespace layout
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namespace layers {
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class ShadowLayerForwarder;
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class LayerTransactionChild : public PLayerTransactionChild
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{
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(LayerTransactionChild)
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/**
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* Clean this up, finishing with SendShutDown() which will cause __delete__
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* to be sent from the parent side.
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*
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* It is expected (checked with an assert) that all shadow layers
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* created by this have already been destroyed and
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* Send__delete__()d by the time this method is called.
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*/
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void Destroy();
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bool IPCOpen() const { return mIPCOpen && !mDestroyed; }
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bool IsDestroyed() const { return mDestroyed; }
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void SetForwarder(ShadowLayerForwarder* aForwarder)
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{
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mForwarder = aForwarder;
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}
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LayersId GetId() const { return mId; }
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void MarkDestroyed() {
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mDestroyed = true;
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}
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protected:
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explicit LayerTransactionChild(const LayersId& aId)
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: mForwarder(nullptr)
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, mIPCOpen(false)
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, mDestroyed(false)
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, mId(aId)
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{}
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~LayerTransactionChild() { }
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void ActorDestroy(ActorDestroyReason why) override;
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void AddIPDLReference() {
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MOZ_ASSERT(mIPCOpen == false);
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mIPCOpen = true;
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AddRef();
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}
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void ReleaseIPDLReference() {
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MOZ_ASSERT(mIPCOpen == true);
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mIPCOpen = false;
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Release();
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}
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friend class CompositorBridgeChild;
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friend class layout::RenderFrameChild;
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ShadowLayerForwarder* mForwarder;
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bool mIPCOpen;
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bool mDestroyed;
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LayersId mId;
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};
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} // namespace layers
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} // namespace mozilla
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#endif // MOZILLA_LAYERS_LAYERTRANSACTIONCHILD_H
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