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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=8 et :
*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef MOZILLA_LAYERS_LAYERTRANSACTIONCHILD_H
#define MOZILLA_LAYERS_LAYERTRANSACTIONCHILD_H
#include <stdint.h> // for uint32_t
#include "mozilla/Attributes.h" // for override
#include "mozilla/ipc/ProtocolUtils.h"
#include "mozilla/layers/PLayerTransactionChild.h"
#include "mozilla/RefPtr.h"
namespace mozilla {
namespace layout {
class RenderFrameChild;
} // namespace layout
namespace layers {
class ShadowLayerForwarder;
class LayerTransactionChild : public PLayerTransactionChild
{
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(LayerTransactionChild)
/**
* Clean this up, finishing with SendShutDown() which will cause __delete__
* to be sent from the parent side.
*
* It is expected (checked with an assert) that all shadow layers
* created by this have already been destroyed and
* Send__delete__()d by the time this method is called.
*/
void Destroy();
bool IPCOpen() const { return mIPCOpen && !mDestroyed; }
bool IsDestroyed() const { return mDestroyed; }
void SetForwarder(ShadowLayerForwarder* aForwarder)
{
mForwarder = aForwarder;
}
uint64_t GetId() const { return mId; }
protected:
explicit LayerTransactionChild(const uint64_t& aId)
: mForwarder(nullptr)
, mIPCOpen(false)
, mDestroyed(false)
, mId(aId)
{}
~LayerTransactionChild() { }
virtual PLayerChild* AllocPLayerChild() override;
virtual bool DeallocPLayerChild(PLayerChild* actor) override;
virtual PCompositableChild* AllocPCompositableChild(const TextureInfo& aInfo) override;
virtual bool DeallocPCompositableChild(PCompositableChild* actor) override;
virtual void ActorDestroy(ActorDestroyReason why) override;
void AddIPDLReference() {
MOZ_ASSERT(mIPCOpen == false);
mIPCOpen = true;
AddRef();
}
void ReleaseIPDLReference() {
MOZ_ASSERT(mIPCOpen == true);
mIPCOpen = false;
Release();
}
friend class CompositorBridgeChild;
friend class layout::RenderFrameChild;
ShadowLayerForwarder* mForwarder;
bool mIPCOpen;
bool mDestroyed;
uint64_t mId;
};
} // namespace layers
} // namespace mozilla
#endif // MOZILLA_LAYERS_LAYERTRANSACTIONCHILD_H
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