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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 dom_plugins_PluginBackgroundDestroyer
#define dom_plugins_PluginBackgroundDestroyer
#include "mozilla/plugins/PPluginBackgroundDestroyerChild.h"
#include "mozilla/plugins/PPluginBackgroundDestroyerParent.h"
#include "gfxSharedImageSurface.h"
class gfxASurface;
namespace mozilla {
namespace plugins {
/**
* When instances of this class are destroyed, the old background goes
* along with them, completing the destruction process (whether or not
* the plugin stayed alive long enough to ack).
*/
class PluginBackgroundDestroyerParent
: public PPluginBackgroundDestroyerParent {
public:
explicit PluginBackgroundDestroyerParent(gfxASurface* aDyingBackground);
virtual ~PluginBackgroundDestroyerParent();
private:
virtual void ActorDestroy(ActorDestroyReason why) override;
RefPtr<gfxASurface> mDyingBackground;
};
/**
* This class exists solely to instruct its instance to release its
* current background, a new one may be coming.
*/
class PluginBackgroundDestroyerChild : public PPluginBackgroundDestroyerChild {
public:
PluginBackgroundDestroyerChild() = default;
virtual ~PluginBackgroundDestroyerChild() = default;
private:
// Implementing this for good hygiene.
virtual void ActorDestroy(ActorDestroyReason why) override {}
};
} // namespace plugins
} // namespace mozilla
#endif // dom_plugins_PluginBackgroundDestroyer
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