gecko-dev/dom/plugins/PluginScriptableObjectChild.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=2 et :
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Plugin App.
*
* The Initial Developer of the Original Code is
* Ben Turner <bent.mozilla@gmail.com>
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef dom_plugins_PluginScriptableObjectChild_h
#define dom_plugins_PluginScriptableObjectChild_h 1
#include "mozilla/plugins/PPluginScriptableObjectChild.h"
#include "npruntime.h"
namespace mozilla {
namespace plugins {
class PluginInstanceChild;
class PluginScriptableObjectChild;
class PPluginIdentifierChild;
struct ChildNPObject : NPObject
{
ChildNPObject()
: NPObject(), parent(NULL), invalidated(false)
{
MOZ_COUNT_CTOR(ChildNPObject);
}
~ChildNPObject()
{
MOZ_COUNT_DTOR(ChildNPObject);
}
// |parent| is always valid as long as the actor is alive. Once the actor is
// destroyed this will be set to null.
PluginScriptableObjectChild* parent;
bool invalidated;
};
class PluginScriptableObjectChild : public PPluginScriptableObjectChild
{
friend class PluginInstanceChild;
public:
PluginScriptableObjectChild(ScriptableObjectType aType);
virtual ~PluginScriptableObjectChild();
void
InitializeProxy();
void
InitializeLocal(NPObject* aObject);
virtual bool
AnswerInvalidate();
virtual bool
AnswerHasMethod(PPluginIdentifierChild* aId,
bool* aHasMethod);
virtual bool
AnswerInvoke(PPluginIdentifierChild* aId,
const InfallibleTArray<Variant>& aArgs,
Variant* aResult,
bool* aSuccess);
virtual bool
AnswerInvokeDefault(const InfallibleTArray<Variant>& aArgs,
Variant* aResult,
bool* aSuccess);
virtual bool
AnswerHasProperty(PPluginIdentifierChild* aId,
bool* aHasProperty);
virtual bool
AnswerGetChildProperty(PPluginIdentifierChild* aId,
bool* aHasProperty,
bool* aHasMethod,
Variant* aResult,
bool* aSuccess);
virtual bool
AnswerSetProperty(PPluginIdentifierChild* aId,
const Variant& aValue,
bool* aSuccess);
virtual bool
AnswerRemoveProperty(PPluginIdentifierChild* aId,
bool* aSuccess);
virtual bool
AnswerEnumerate(InfallibleTArray<PPluginIdentifierChild*>* aProperties,
bool* aSuccess);
virtual bool
AnswerConstruct(const InfallibleTArray<Variant>& aArgs,
Variant* aResult,
bool* aSuccess);
virtual bool
RecvProtect();
virtual bool
RecvUnprotect();
NPObject*
GetObject(bool aCanResurrect);
static const NPClass*
GetClass()
{
return &sNPClass;
}
PluginInstanceChild*
GetInstance() const
{
return mInstance;
}
// Protect only affects LocalObject actors. It is called by the
// ProtectedVariant/Actor helper classes before the actor is used as an
// argument to an IPC call and when the parent process resurrects a
// proxy object to the NPObject associated with this actor.
void Protect();
// Unprotect only affects LocalObject actors. It is called by the
// ProtectedVariant/Actor helper classes after the actor is used as an
// argument to an IPC call and when the parent process is no longer using
// this actor.
void Unprotect();
// DropNPObject is only used for Proxy actors and is called when the child
// process is no longer using the NPObject associated with this actor. The
// parent process may subsequently use this actor again in which case a new
// NPObject will be created and associated with this actor (see
// ResurrectProxyObject).
void DropNPObject();
/**
* After NPP_Destroy, all NPObjects associated with an instance are
* destroyed. We are informed of this destruction. This should only be called
* on Local actors.
*/
void NPObjectDestroyed();
bool
Evaluate(NPString* aScript,
NPVariant* aResult);
ScriptableObjectType
Type() const {
return mType;
}
private:
static NPObject*
ScriptableAllocate(NPP aInstance,
NPClass* aClass);
static void
ScriptableInvalidate(NPObject* aObject);
static void
ScriptableDeallocate(NPObject* aObject);
static bool
ScriptableHasMethod(NPObject* aObject,
NPIdentifier aName);
static bool
ScriptableInvoke(NPObject* aObject,
NPIdentifier aName,
const NPVariant* aArgs,
uint32_t aArgCount,
NPVariant* aResult);
static bool
ScriptableInvokeDefault(NPObject* aObject,
const NPVariant* aArgs,
uint32_t aArgCount,
NPVariant* aResult);
static bool
ScriptableHasProperty(NPObject* aObject,
NPIdentifier aName);
static bool
ScriptableGetProperty(NPObject* aObject,
NPIdentifier aName,
NPVariant* aResult);
static bool
ScriptableSetProperty(NPObject* aObject,
NPIdentifier aName,
const NPVariant* aValue);
static bool
ScriptableRemoveProperty(NPObject* aObject,
NPIdentifier aName);
static bool
ScriptableEnumerate(NPObject* aObject,
NPIdentifier** aIdentifiers,
uint32_t* aCount);
static bool
ScriptableConstruct(NPObject* aObject,
const NPVariant* aArgs,
uint32_t aArgCount,
NPVariant* aResult);
NPObject*
CreateProxyObject();
// ResurrectProxyObject is only used with Proxy actors. It is called when the
// parent process uses an actor whose NPObject was deleted by the child
// process.
bool ResurrectProxyObject();
private:
PluginInstanceChild* mInstance;
NPObject* mObject;
bool mInvalidated;
int mProtectCount;
ScriptableObjectType mType;
static const NPClass sNPClass;
};
} /* namespace plugins */
} /* namespace mozilla */
#endif /* dom_plugins_PluginScriptableObjectChild_h */