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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* 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_gfx_layers_ImageContainerChild_h
#define mozilla_gfx_layers_ImageContainerChild_h
#include "mozilla/Mutex.h"
#include "mozilla/layers/PImageContainerChild.h"
namespace mozilla {
namespace layers {
class ImageContainer;
class ImageCompositeNotification;
/**
* The child side of PImageContainer. It's best to avoid ImageContainer filling
* this role since IPDL objects should be associated with a single thread and
* ImageContainer definitely isn't. This object belongs to (and is always
* destroyed on) the ImageBridge thread, except when we need to destroy it
* during shutdown.
* An ImageContainer owns one of these; we have a weak reference to our
* ImageContainer.
*/
class ImageContainerChild final : public PImageContainerChild
{
public:
explicit ImageContainerChild(ImageContainer* aImageContainer);
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(ImageContainerChild)
void RegisterWithIPDL();
void UnregisterFromIPDL();
void SendAsyncDelete();
void NotifyComposite(const ImageCompositeNotification& aNotification);
void ForgetImageContainer();
private:
~ImageContainerChild()
{}
private:
Mutex mLock;
ImageContainer* mImageContainer;
// If mIPCOpen is false, it means the IPDL code tried to deallocate the actor
// before the ImageContainer released it. When this happens we don't actually
// delete the actor right away because the ImageContainer has a reference to
// it. In this case the actor will be deleted when the ImageContainer lets go
// of it.
// mIPCOpen must not be accessed off the ImageBridgeChild thread.
bool mIPCOpen;
};
} // namespace layers
} // namespace mozilla
#endif // mozilla_gfx_layers_ImageContainerChild_h
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