js/src/xpconnect/src/XPCNativeWrapper.h
author Blake Kaplan <mrbkap@gmail.com>
Fri, 16 Jan 2009 18:05:14 -0800
changeset 23840 5d3af3ff96391326fea5f07b9eac94ea9216cedd
parent 20762 b91e44d05452000bf1b0edaf246c8653c978455b
child 23841 cd3ec07611fc6ee4046fdaf7db92d7802f2486b1
permissions -rw-r--r--
Bug 472674 - Allow XPCNativeWrapper to unwrap SJOWs again. r+sr=jst

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 *   Johnny Stenback <jst@mozilla.org> (original author)
 *   Brendan Eich <brendan@mozilla.org>
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#include "nscore.h"
#include "jsapi.h"

class nsIPrincipal;

class XPCNativeWrapper
{
public:
  static PRBool AttachNewConstructorObject(XPCCallContext &ccx,
                                           JSObject *aGlobalObject);

  static JSObject *GetNewOrUsed(JSContext *cx, XPCWrappedNative *wrapper,
                                nsIPrincipal *aObjectPrincipal);

  static PRBool IsNativeWrapperClass(JSClass *clazz)
  {
    return clazz == &sXPC_NW_JSClass.base;
  }

  static PRBool IsNativeWrapper(JSObject *obj)
  {
    return STOBJ_GET_CLASS(obj) == &sXPC_NW_JSClass.base;
  }

  static JSBool GetWrappedNative(JSContext *cx, JSObject *obj,
                                 XPCWrappedNative **aWrappedNative);

  // NB: Use the following carefully.
  static XPCWrappedNative *SafeGetWrappedNative(JSObject *obj)
  {
      return static_cast<XPCWrappedNative *>(xpc_GetJSPrivate(obj));
  }


  static JSClass *GetJSClass()
  {
    return &sXPC_NW_JSClass.base;
  }

  static void ClearWrappedNativeScopes(JSContext* cx,
                                       XPCWrappedNative* wrapper);

protected:
  static JSExtendedClass sXPC_NW_JSClass;
};

JSBool
XPC_XOW_WrapObject(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
                   jsval *rval);