diff -r 000000000000 -r 4f2f89ce4247 WebCore/bindings/js/JSEventTarget.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/js/JSEventTarget.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,223 @@
+/*
+ * Copyright (C) 2008 Apple Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "JSEventTarget.h"
+
+#include "DOMWindow.h"
+#include "Document.h"
+#include "JSDOMWindow.h"
+#include "JSDOMWindowShell.h"
+#include "JSEventListener.h"
+#include "JSMessagePort.h"
+#include "JSNode.h"
+#if ENABLE(SHARED_WORKERS)
+
+#include "JSSharedWorker.h"
+#include "JSSharedWorkerContext.h"
+#endif
+
+#include "JSXMLHttpRequest.h"
+#include "JSXMLHttpRequestUpload.h"
+#include "MessagePort.h"
+
+#if ENABLE(SHARED_WORKERS)
+#include "SharedWorker.h"
+#include "SharedWorkerContext.h"
+#endif
+
+#include "XMLHttpRequest.h"
+#include "XMLHttpRequestUpload.h"
+
+#if ENABLE(EVENTSOURCE)
+#include "EventSource.h"
+#include "JSEventSource.h"
+#endif
+
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+#include "DOMApplicationCache.h"
+#include "JSDOMApplicationCache.h"
+#endif
+
+#if ENABLE(SVG)
+#include "SVGElementInstance.h"
+#include "JSSVGElementInstance.h"
+#endif
+
+#if ENABLE(WORKERS)
+#include "DedicatedWorkerContext.h"
+#include "JSDedicatedWorkerContext.h"
+#include "JSWorker.h"
+#include "Worker.h"
+#endif
+
+#if ENABLE(NOTIFICATIONS)
+#include "JSNotification.h"
+#include "Notification.h"
+#endif
+
+#if ENABLE(INDEXED_DATABASE)
+#include "IDBRequest.h"
+#include "JSIDBRequest.h"
+#endif
+
+#if ENABLE(WEB_SOCKETS)
+#include "JSWebSocket.h"
+#include "WebSocket.h"
+#endif
+
+#if ENABLE(FILE_READER)
+#include "JSFileReader.h"
+#include "FileReader.h"
+#endif
+
+using namespace JSC;
+
+namespace WebCore {
+
+JSValue toJS(ExecState* exec, JSDOMGlobalObject* globalObject, EventTarget* target)
+{
+    if (!target)
+        return jsNull();
+    
+#if ENABLE(EVENTSOURCE)
+    if (EventSource* eventSource = target->toEventSource())
+        return toJS(exec, globalObject, eventSource);
+#endif
+
+#if ENABLE(SVG)
+    // SVGElementInstance supports both toSVGElementInstance and toNode since so much mouse handling code depends on toNode returning a valid node.
+    if (SVGElementInstance* instance = target->toSVGElementInstance())
+        return toJS(exec, globalObject, instance);
+#endif
+    
+    if (Node* node = target->toNode())
+        return toJS(exec, globalObject, node);
+
+    if (DOMWindow* domWindow = target->toDOMWindow())
+        return toJS(exec, globalObject, domWindow);
+
+    if (XMLHttpRequest* xhr = target->toXMLHttpRequest())
+        return toJS(exec, globalObject, xhr);
+
+    if (XMLHttpRequestUpload* upload = target->toXMLHttpRequestUpload())
+        return toJS(exec, globalObject, upload);
+
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+    if (DOMApplicationCache* cache = target->toDOMApplicationCache())
+        return toJS(exec, globalObject, cache);
+#endif
+
+    if (MessagePort* messagePort = target->toMessagePort())
+        return toJS(exec, globalObject, messagePort);
+
+#if ENABLE(WORKERS)
+    if (Worker* worker = target->toWorker())
+        return toJS(exec, globalObject, worker);
+
+    if (DedicatedWorkerContext* workerContext = target->toDedicatedWorkerContext())
+        return toJSDOMGlobalObject(workerContext, exec);
+#endif
+
+#if ENABLE(SHARED_WORKERS)
+    if (SharedWorker* sharedWorker = target->toSharedWorker())
+        return toJS(exec, globalObject, sharedWorker);
+
+    if (SharedWorkerContext* workerContext = target->toSharedWorkerContext())
+        return toJSDOMGlobalObject(workerContext, exec);
+#endif
+
+#if ENABLE(NOTIFICATIONS)
+    if (Notification* notification = target->toNotification())
+        return toJS(exec, notification);
+#endif
+
+#if ENABLE(INDEXED_DATABASE)
+    if (IDBRequest* idbRequest = target->toIDBRequest())
+        return toJS(exec, idbRequest);
+#endif
+
+#if ENABLE(WEB_SOCKETS)
+    if (WebSocket* webSocket = target->toWebSocket())
+        return toJS(exec, webSocket);
+#endif
+
+#if ENABLE(FILE_READER)
+    if (FileReader* fileReader = target->toFileReader())
+        return toJS(exec, globalObject, fileReader);
+#endif
+
+    ASSERT_NOT_REACHED();
+    return jsNull();
+}
+
+EventTarget* toEventTarget(JSC::JSValue value)
+{
+    #define CONVERT_TO_EVENT_TARGET(type) \
+        if (value.inherits(&JS##type::s_info)) \
+            return static_cast<JS##type*>(asObject(value))->impl();
+
+    CONVERT_TO_EVENT_TARGET(Node)
+    CONVERT_TO_EVENT_TARGET(XMLHttpRequest)
+    CONVERT_TO_EVENT_TARGET(XMLHttpRequestUpload)
+    CONVERT_TO_EVENT_TARGET(MessagePort)
+
+    if (value.inherits(&JSDOMWindowShell::s_info))
+        return static_cast<JSDOMWindowShell*>(asObject(value))->impl();
+
+#if ENABLE(EVENTSOURCE)
+    CONVERT_TO_EVENT_TARGET(EventSource)
+#endif
+
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+    CONVERT_TO_EVENT_TARGET(DOMApplicationCache)
+#endif
+
+#if ENABLE(SVG)
+    CONVERT_TO_EVENT_TARGET(SVGElementInstance)
+#endif
+
+#if ENABLE(WORKERS)
+    CONVERT_TO_EVENT_TARGET(Worker)
+    CONVERT_TO_EVENT_TARGET(DedicatedWorkerContext)
+#endif
+
+#if ENABLE(SHARED_WORKERS)
+    CONVERT_TO_EVENT_TARGET(SharedWorker)
+    CONVERT_TO_EVENT_TARGET(SharedWorkerContext)
+#endif
+
+#if ENABLE(NOTIFICATIONS)
+    CONVERT_TO_EVENT_TARGET(Notification)
+#endif
+
+#if ENABLE(WEB_SOCKETS)
+    CONVERT_TO_EVENT_TARGET(WebSocket)
+#endif
+
+    return 0;
+}
+
+} // namespace WebCore