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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;
mozilla::ipc::IPCResult AnswerHasMethod(const PluginIdentifier& aId,
bool* aHasMethod);
mozilla::ipc::IPCResult AnswerInvoke(const PluginIdentifier& aId,
nsTArray<Variant>&& aArgs,
Variant* aResult, bool* aSuccess);
mozilla::ipc::IPCResult AnswerInvokeDefault(nsTArray<Variant>&& aArgs,
Variant* aResult, bool* aSuccess);
mozilla::ipc::IPCResult AnswerHasProperty(const PluginIdentifier& aId,
bool* aHasProperty);
mozilla::ipc::IPCResult AnswerGetParentProperty(const PluginIdentifier& aId,
Variant* aResult,
bool* aSuccess);
mozilla::ipc::IPCResult AnswerSetProperty(const PluginIdentifier& aId,
const Variant& aValue,
bool* aSuccess);
mozilla::ipc::IPCResult AnswerRemoveProperty(const PluginIdentifier& aId,
bool* aSuccess);
mozilla::ipc::IPCResult AnswerEnumerate(
nsTArray<PluginIdentifier>* aProperties, bool* aSuccess);
mozilla::ipc::IPCResult AnswerConstruct(nsTArray<Variant>&& aArgs,
Variant* aResult, bool* aSuccess);
mozilla::ipc::IPCResult AnswerNPN_Evaluate(const nsCString& aScript,
Variant* aResult, bool* aSuccess);
mozilla::ipc::IPCResult RecvProtect();
mozilla::ipc::IPCResult RecvUnprotect();
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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