author Benoit Jacob <bjacob@mozilla.com>
Thu, 11 Aug 2011 18:17:59 -0400
changeset 74257 f262c389193e
parent 62397 48dbd9752e5e
child 77740 dbe064b3a659
permissions -rw-r--r--
Bug 676413 - fix the crossOrigin attribute test - r=smaug This is not a limited-enumerated attribute, so let's use reflectString instead.
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * vim: set ts=4 sw=4 et tw=99 ft=cpp:
 * ***** 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, released
 * June 24, 2010.
 * The Initial Developer of the Original Code is
 *    The Mozilla Foundation
 * Contributor(s):
 *    Andreas Gal <gal@mozilla.com>
 * 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
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 * 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 ***** */

#include "jsapi.h"
#include "jswrapper.h"

// Xray wrappers re-resolve the original native properties on the native
// object and always directly access to those properties.
// Because they work so differently from the rest of the wrapper hierarchy,
// we pull them out of the JSWrapper inheritance hierarchy and create a
// little world around them.

namespace xpc {

namespace XrayUtils {

extern JSClass HolderClass;

IsTransparent(JSContext *cx, JSObject *wrapper);


// NB: Base *must* derive from JSProxyHandler
template <typename Base>
class XrayWrapper : public Base {
    XrayWrapper(uintN flags);
    virtual ~XrayWrapper();

    bool resolveWrappedJSObject(JSContext *cx, JSObject *wrapper, jsid id,
                                bool set, js::PropertyDescriptor *desc);

    /* Fundamental proxy traps. */
    virtual bool getPropertyDescriptor(JSContext *cx, JSObject *wrapper, jsid id,
                                       bool set, js::PropertyDescriptor *desc);
    virtual bool getOwnPropertyDescriptor(JSContext *cx, JSObject *wrapper, jsid id,
                                          bool set, js::PropertyDescriptor *desc);
    virtual bool defineProperty(JSContext *cx, JSObject *wrapper, jsid id,
                                js::PropertyDescriptor *desc);
    virtual bool getOwnPropertyNames(JSContext *cx, JSObject *wrapper,
                                     js::AutoIdVector &props);
    virtual bool delete_(JSContext *cx, JSObject *wrapper, jsid id, bool *bp);
    virtual bool enumerate(JSContext *cx, JSObject *wrapper, js::AutoIdVector &props);
    virtual bool fix(JSContext *cx, JSObject *proxy, js::Value *vp);

    /* Derived proxy traps. */
    virtual bool get(JSContext *cx, JSObject *wrapper, JSObject *receiver, jsid id,
                     js::Value *vp);
    virtual bool set(JSContext *cx, JSObject *wrapper, JSObject *receiver, jsid id,
                     bool strict, js::Value *vp);
    virtual bool has(JSContext *cx, JSObject *wrapper, jsid id, bool *bp);
    virtual bool hasOwn(JSContext *cx, JSObject *wrapper, jsid id, bool *bp);
    virtual bool keys(JSContext *cx, JSObject *wrapper, js::AutoIdVector &props);
    virtual bool iterate(JSContext *cx, JSObject *wrapper, uintN flags, js::Value *vp);

    virtual bool call(JSContext *cx, JSObject *wrapper, uintN argc, js::Value *vp);
    virtual bool construct(JSContext *cx, JSObject *wrapper,
                           uintN argc, js::Value *argv, js::Value *rval);

    static JSObject *createHolder(JSContext *cx, JSObject *wrappedNative, JSObject *parent);

    static XrayWrapper singleton;

    bool resolveOwnProperty(JSContext *cx, JSObject *wrapper, jsid id, bool set,
                            js::PropertyDescriptor *desc);