gecko/js/ipc/ObjectWrapperParent.h

178 lines
5.5 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=8 sw=4 et tw=80:
*
* ***** 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.org code.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Ben Newman <b{enjam,newma}n@mozilla.com> (original author)
*
* Alternatively, the contents of this file may be used under the terms of
* either of 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 mozilla_jsipc_ObjectWrapperParent_h__
#define mozilla_jsipc_ObjectWrapperParent_h__
#include "mozilla/jsipc/PObjectWrapperParent.h"
#include "jsapi.h"
#include "jsvalue.h"
#include "nsAutoJSValHolder.h"
namespace mozilla {
namespace jsipc {
class ContextWrapperParent;
class OperationChecker {
public:
virtual void CheckOperation(JSContext* cx,
OperationStatus* status) = 0;
};
class ObjectWrapperParent
: public PObjectWrapperParent
, public OperationChecker
{
public:
ObjectWrapperParent()
: mObj(NULL)
{}
JSObject* GetJSObject(JSContext* cx) const;
jsval GetJSVal(JSContext* cx) const {
return OBJECT_TO_JSVAL(GetJSObject(cx));
}
void CheckOperation(JSContext* cx,
OperationStatus* status);
static const js::Class sCPOW_JSClass;
protected:
void ActorDestroy(ActorDestroyReason why);
ContextWrapperParent* Manager();
private:
mutable JSObject* mObj;
static JSBool
CPOW_AddProperty(JSContext *cx, JSObject *obj, jsid id, jsval *vp);
static JSBool
CPOW_DelProperty(JSContext *cx, JSObject *obj, jsid id, jsval *vp);
static JSBool
CPOW_GetProperty(JSContext *cx, JSObject *obj, jsid id, jsval *vp);
static JSBool
CPOW_SetProperty(JSContext *cx, JSObject *obj, jsid id, jsval *vp);
JSBool NewEnumerateInit(JSContext* cx, jsval* statep, jsid* idp);
JSBool NewEnumerateNext(JSContext* cx, jsval* statep, jsid* idp);
JSBool NewEnumerateDestroy(JSContext* cx, jsval state);
static JSBool
CPOW_NewEnumerate(JSContext *cx, JSObject *obj, JSIterateOp enum_op,
jsval *statep, jsid *idp);
static JSBool
CPOW_NewResolve(JSContext *cx, JSObject *obj, jsid id, uintN flags,
JSObject **objp);
static JSBool
CPOW_Convert(JSContext *cx, JSObject *obj, JSType type, jsval *vp);
static void
CPOW_Finalize(JSContext* cx, JSObject* obj);
static JSBool
CPOW_Call(JSContext* cx, uintN argc, jsval* vp);
static JSBool
CPOW_Construct(JSContext *cx, uintN argc, jsval *vp);
static JSBool
CPOW_HasInstance(JSContext *cx, JSObject *obj, const jsval *v, JSBool *bp);
static JSBool
CPOW_Equality(JSContext *cx, JSObject *obj, const jsval *v, JSBool *bp);
static bool jsval_to_JSVariant(JSContext* cx, jsval from, JSVariant* to);
static bool jsval_from_JSVariant(JSContext* cx, const JSVariant& from,
jsval* to);
static bool
JSObject_to_PObjectWrapperParent(JSContext* cx, JSObject* from,
PObjectWrapperParent** to);
static bool
JSObject_from_PObjectWrapperParent(JSContext* cx,
const PObjectWrapperParent* from,
JSObject** to);
static bool
jsval_from_PObjectWrapperParent(JSContext* cx,
const PObjectWrapperParent* from,
jsval* to);
};
template <class StatusOwnerPolicy>
class AutoCheckOperationBase
: public StatusOwnerPolicy
{
JSContext* const mContext;
OperationChecker* const mChecker;
protected:
AutoCheckOperationBase(JSContext* cx,
OperationChecker* checker)
: mContext(cx)
, mChecker(checker)
{}
virtual ~AutoCheckOperationBase() {
mChecker->CheckOperation(mContext, StatusOwnerPolicy::StatusPtr());
}
public:
bool Ok() {
return (StatusOwnerPolicy::StatusPtr()->type() == OperationStatus::TJSBool &&
StatusOwnerPolicy::StatusPtr()->get_JSBool());
}
};
}}
#endif