109 lines
3.7 KiB
C++
109 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2001
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/* This file is a small subset of nsJSUtils utility functions,
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from the dom directory.
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*/
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#include "nsCOMPtr.h"
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#include "nsIScriptContext.h"
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#include "nsIScriptGlobalObject.h"
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#include "nsWWJSUtils.h"
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#include "nsIXPConnect.h"
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nsresult
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nsWWJSUtils::nsGetStaticScriptGlobal(JSContext* aContext,
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JSObject* aObj,
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nsIScriptGlobalObject** aNativeGlobal)
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{
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nsISupports* supports;
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JSClass* clazz;
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JSObject* parent;
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JSObject* glob = aObj; // starting point for search
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if (!glob)
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return NS_ERROR_FAILURE;
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while (nsnull != (parent = JS_GetParent(aContext, glob)))
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glob = parent;
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#ifdef JS_THREADSAFE
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clazz = JS_GetClass(aContext, glob);
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#else
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clazz = JS_GetClass(glob);
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#endif
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if (!clazz ||
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!(clazz->flags & JSCLASS_HAS_PRIVATE) ||
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!(clazz->flags & JSCLASS_PRIVATE_IS_NSISUPPORTS) ||
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!(supports = (nsISupports*) JS_GetPrivate(aContext, glob))) {
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return NS_ERROR_FAILURE;
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}
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nsCOMPtr<nsIXPConnectWrappedNative> wrapper(do_QueryInterface(supports));
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NS_ENSURE_TRUE(wrapper, NS_ERROR_UNEXPECTED);
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nsCOMPtr<nsISupports> native;
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wrapper->GetNative(getter_AddRefs(native));
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return CallQueryInterface(native, aNativeGlobal);
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}
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nsresult
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nsWWJSUtils::nsGetDynamicScriptContext(JSContext *aContext,
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nsIScriptContext** aScriptContext)
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{
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return GetScriptContextFromJSContext(aContext, aScriptContext);
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}
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nsresult
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nsWWJSUtils::nsGetStaticScriptContext(JSContext* aContext,
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JSObject* aObj,
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nsIScriptContext** aScriptContext)
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{
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nsCOMPtr<nsIScriptGlobalObject> nativeGlobal;
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nsGetStaticScriptGlobal(aContext, aObj, getter_AddRefs(nativeGlobal));
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if (!nativeGlobal)
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return NS_ERROR_FAILURE;
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nsIScriptContext* scriptContext = nsnull;
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nativeGlobal->GetContext(&scriptContext);
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*aScriptContext = scriptContext;
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return scriptContext ? NS_OK : NS_ERROR_FAILURE;
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}
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