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57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* vim: sw=4 ts=8 et :
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*/
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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 dom_plugins_PluginBackgroundDestroyer
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#define dom_plugins_PluginBackgroundDestroyer
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#include "mozilla/plugins/PPluginBackgroundDestroyerChild.h"
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#include "mozilla/plugins/PPluginBackgroundDestroyerParent.h"
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#include "gfxSharedImageSurface.h"
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class gfxASurface;
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namespace mozilla {
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namespace plugins {
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/**
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* When instances of this class are destroyed, the old background goes
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* along with them, completing the destruction process (whether or not
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* the plugin stayed alive long enough to ack).
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*/
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class PluginBackgroundDestroyerParent : public PPluginBackgroundDestroyerParent {
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public:
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explicit PluginBackgroundDestroyerParent(gfxASurface* aDyingBackground);
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virtual ~PluginBackgroundDestroyerParent();
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private:
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virtual void ActorDestroy(ActorDestroyReason why) override;
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RefPtr<gfxASurface> mDyingBackground;
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};
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/**
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* This class exists solely to instruct its instance to release its
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* current background, a new one may be coming.
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*/
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class PluginBackgroundDestroyerChild : public PPluginBackgroundDestroyerChild {
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public:
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PluginBackgroundDestroyerChild() { }
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virtual ~PluginBackgroundDestroyerChild() { }
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private:
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// Implementing this for good hygiene.
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virtual void ActorDestroy(ActorDestroyReason why) override
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{ }
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};
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} // namespace plugins
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} // namespace mozilla
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#endif // dom_plugins_PluginBackgroundDestroyer
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