gecko-dev/js/ipc/ContextWrapperParent.h

86 lines
2.1 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=8 sts=4 et sw=4 tw=99:
* 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 mozilla_jsipc_ContextWrapperParent_h__
#define mozilla_jsipc_ContextWrapperParent_h__
#include "mozilla/jsipc/PContextWrapperParent.h"
#include "mozilla/jsipc/ObjectWrapperParent.h"
#include "mozilla/jsipc/CPOWTypes.h"
#include "mozilla/dom/ContentParent.h"
#include "jsapi.h"
#include "nsAutoJSValHolder.h"
namespace mozilla {
namespace jsipc {
using mozilla::dom::ContentParent;
class ContextWrapperParent
: public PContextWrapperParent
{
public:
ContextWrapperParent(ContentParent* cpp)
: mContent(cpp)
, mGlobal(NULL)
{}
JSBool GetGlobalJSObject(JSContext* cx, JSObject** globalp) {
if (!mGlobal)
return JS_FALSE;
mGlobalHolder.Hold(cx);
mGlobalHolder = *globalp = mGlobal->GetJSObject(cx);
return JS_TRUE;
}
ObjectWrapperParent* GetGlobalObjectWrapper() const {
return mGlobal;
}
bool RequestRunToCompletion() {
return mContent->RequestRunToCompletion();
}
private:
ContentParent* mContent;
ObjectWrapperParent* mGlobal;
nsAutoJSValHolder mGlobalHolder;
PObjectWrapperParent* AllocPObjectWrapper(const bool&) {
return new ObjectWrapperParent();
}
bool RecvPObjectWrapperConstructor(PObjectWrapperParent* actor,
const bool& makeGlobal)
{
if (makeGlobal) {
mGlobalHolder.Release();
mGlobal = static_cast<ObjectWrapperParent*>(actor);
}
return true;
}
bool DeallocPObjectWrapper(PObjectWrapperParent* actor)
{
if (mGlobal &&
mGlobal == static_cast<ObjectWrapperParent*>(actor)) {
mGlobalHolder.Release();
mGlobal = NULL;
}
delete actor;
return true;
}
};
}}
#endif