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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=2 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_PluginScriptableObjectParent_h
#define dom_plugins_PluginScriptableObjectParent_h 1
#include "mozilla/plugins/PPluginScriptableObjectParent.h"
#include "mozilla/plugins/PluginMessageUtils.h"
#include "npfunctions.h"
#include "npruntime.h"
namespace mozilla {
namespace plugins {
class PluginInstanceParent;
class PluginScriptableObjectParent;
struct ParentNPObject : NPObject
{
ParentNPObject()
: NPObject()
, parent(nullptr)
, invalidated(false)
, asyncWrapperCount(0)
{}
// |parent| is always valid as long as the actor is alive. Once the actor is
// destroyed this will be set to null.
PluginScriptableObjectParent* parent;
bool invalidated;
int32_t asyncWrapperCount;
};
class PluginScriptableObjectParent : public PPluginScriptableObjectParent
{
friend class PluginInstanceParent;
public:
explicit PluginScriptableObjectParent(ScriptableObjectType aType);
virtual ~PluginScriptableObjectParent();
void
InitializeProxy();
void
InitializeLocal(NPObject* aObject);
virtual void
ActorDestroy(ActorDestroyReason aWhy) override;
virtual bool
AnswerHasMethod(const PluginIdentifier& aId,
bool* aHasMethod) override;
virtual bool
AnswerInvoke(const PluginIdentifier& aId,
InfallibleTArray<Variant>&& aArgs,
Variant* aResult,
bool* aSuccess) override;
virtual bool
AnswerInvokeDefault(InfallibleTArray<Variant>&& aArgs,
Variant* aResult,
bool* aSuccess) override;
virtual bool
AnswerHasProperty(const PluginIdentifier& aId,
bool* aHasProperty) override;
virtual bool
AnswerGetParentProperty(const PluginIdentifier& aId,
Variant* aResult,
bool* aSuccess) override;
virtual bool
AnswerSetProperty(const PluginIdentifier& aId,
const Variant& aValue,
bool* aSuccess) override;
virtual bool
AnswerRemoveProperty(const PluginIdentifier& aId,
bool* aSuccess) override;
virtual bool
AnswerEnumerate(InfallibleTArray<PluginIdentifier>* aProperties,
bool* aSuccess) override;
virtual bool
AnswerConstruct(InfallibleTArray<Variant>&& aArgs,
Variant* aResult,
bool* aSuccess) override;
virtual bool
AnswerNPN_Evaluate(const nsCString& aScript,
Variant* aResult,
bool* aSuccess) override;
virtual bool
RecvProtect() override;
virtual bool
RecvUnprotect() override;
static const NPClass*
GetClass()
{
return &sNPClass;
}
PluginInstanceParent*
GetInstance() const
{
return mInstance;
}
NPObject*
GetObject(bool aCanResurrect);
// 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 child 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 child process is no longer using this
// actor.
void Unprotect();
// DropNPObject is only used for Proxy actors and is called when the parent
// process is no longer using the NPObject associated with this actor. The
// child 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();
ScriptableObjectType
Type() const {
return mType;
}
bool GetPropertyHelper(NPIdentifier aName,
bool* aHasProperty,
bool* aHasMethod,
NPVariant* aResult);
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
// child process uses an actor whose NPObject was deleted by the parent
// process.
bool ResurrectProxyObject();
private:
PluginInstanceParent* mInstance;
// This may be a ParentNPObject or some other kind depending on who created
// it. Have to check its class to find out.
NPObject* mObject;
int mProtectCount;
ScriptableObjectType mType;
static const NPClass sNPClass;
};
} /* namespace plugins */
} /* namespace mozilla */
#endif /* dom_plugins_PluginScriptableObjectParent_h */
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