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90 lines
1.9 KiB
C++
90 lines
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=2 et :
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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_PluginIdentifierParent_h
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#define dom_plugins_PluginIdentifierParent_h
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#include "mozilla/plugins/PPluginIdentifierParent.h"
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#include "npapi.h"
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#include "npruntime.h"
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namespace mozilla {
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namespace plugins {
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class PluginInstanceParent;
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class PluginIdentifierParent : public PPluginIdentifierParent
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{
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friend class PluginModuleParent;
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public:
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NPIdentifier ToNPIdentifier()
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{
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return mIdentifier;
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}
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bool IsTemporary() {
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return !!mTemporaryRefs;
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}
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/**
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* Holds a perhaps-temporary identifier for the current stack frame.
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*/
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class NS_STACK_CLASS StackIdentifier
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{
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public:
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StackIdentifier(PluginInstanceParent* inst, NPIdentifier aIdentifier);
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StackIdentifier(NPObject* aObject, NPIdentifier aIdentifier);
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~StackIdentifier();
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operator PluginIdentifierParent*() {
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return mIdentifier;
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}
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private:
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DISALLOW_COPY_AND_ASSIGN(StackIdentifier);
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PluginIdentifierParent* mIdentifier;
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};
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protected:
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PluginIdentifierParent(NPIdentifier aIdentifier, bool aTemporary)
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: mIdentifier(aIdentifier)
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, mTemporaryRefs(aTemporary ? 1 : 0)
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{
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MOZ_COUNT_CTOR(PluginIdentifierParent);
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}
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virtual ~PluginIdentifierParent()
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{
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MOZ_COUNT_DTOR(PluginIdentifierParent);
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}
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virtual bool RecvRetain();
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void AddTemporaryRef() {
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mTemporaryRefs++;
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}
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/**
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* @returns true if the last temporary reference was removed.
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*/
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bool RemoveTemporaryRef() {
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--mTemporaryRefs;
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return !mTemporaryRefs;
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}
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private:
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NPIdentifier mIdentifier;
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unsigned int mTemporaryRefs;
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};
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} // namespace plugins
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} // namespace mozilla
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#endif // dom_plugins_PluginIdentifierParent_h
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