1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/plugins/ipc/PluginBackgroundDestroyer.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,56 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * vim: sw=4 ts=8 et :
1.6 + */
1.7 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.8 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.9 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.10 +
1.11 +#ifndef dom_plugins_PluginBackgroundDestroyer
1.12 +#define dom_plugins_PluginBackgroundDestroyer
1.13 +
1.14 +#include "mozilla/plugins/PPluginBackgroundDestroyerChild.h"
1.15 +#include "mozilla/plugins/PPluginBackgroundDestroyerParent.h"
1.16 +
1.17 +#include "gfxSharedImageSurface.h"
1.18 +
1.19 +class gfxASurface;
1.20 +
1.21 +namespace mozilla {
1.22 +namespace plugins {
1.23 +
1.24 +/**
1.25 + * When instances of this class are destroyed, the old background goes
1.26 + * along with them, completing the destruction process (whether or not
1.27 + * the plugin stayed alive long enough to ack).
1.28 + */
1.29 +class PluginBackgroundDestroyerParent : public PPluginBackgroundDestroyerParent {
1.30 +public:
1.31 + PluginBackgroundDestroyerParent(gfxASurface* aDyingBackground);
1.32 +
1.33 + virtual ~PluginBackgroundDestroyerParent();
1.34 +
1.35 +private:
1.36 + virtual void ActorDestroy(ActorDestroyReason why) MOZ_OVERRIDE;
1.37 +
1.38 + nsRefPtr<gfxASurface> mDyingBackground;
1.39 +};
1.40 +
1.41 +/**
1.42 + * This class exists solely to instruct its instance to release its
1.43 + * current background, a new one may be coming.
1.44 + */
1.45 +class PluginBackgroundDestroyerChild : public PPluginBackgroundDestroyerChild {
1.46 +public:
1.47 + PluginBackgroundDestroyerChild() { }
1.48 + virtual ~PluginBackgroundDestroyerChild() { }
1.49 +
1.50 +private:
1.51 + // Implementing this for good hygiene.
1.52 + virtual void ActorDestroy(ActorDestroyReason why) MOZ_OVERRIDE
1.53 + { }
1.54 +};
1.55 +
1.56 +} // namespace plugins
1.57 +} // namespace mozilla
1.58 +
1.59 +#endif // dom_plugins_PluginBackgroundDestroyer
