WebKit merge 40668:40722 part 1.

third_party/WebKit/WebCore/bindings/js/JSEventTarget.cpp

Index: third_party/WebKit/WebCore/bindings/js/JSEventTarget.cpp
===================================================================
--- third_party/WebKit/WebCore/bindings/js/JSEventTarget.cpp	(revision 9310)
+++ third_party/WebKit/WebCore/bindings/js/JSEventTarget.cpp	(working copy)
@@ -1,92 +1,131 @@
-/*
- * 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 "Document.h"
-#include "JSEventListener.h"
-#include "JSEventTargetNode.h"
-#include "JSMessagePort.h"
-#include "JSWorker.h"
-#include "JSWorkerContext.h"
-#include "JSXMLHttpRequestUpload.h"
-#include "Worker.h"
-#include "WorkerContext.h"
-
-#if ENABLE(SVG)
-#include "SVGElementInstance.h"
-#include "JSSVGElementInstance.h"
-#endif
-
-using namespace JSC;
-
-namespace WebCore {
-
-JSValuePtr toJS(ExecState* exec, EventTarget* target)
-{
-    if (!target)
-        return jsNull();
-    
-#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, instance);
-#endif
-    
-    if (Node* node = target->toNode())
-        return toJS(exec, node);
-
-    if (XMLHttpRequest* xhr = target->toXMLHttpRequest())
-        // XMLHttpRequest is always created via JS, so we don't need to use cacheDOMObject() here.
-        return getCachedDOMObjectWrapper(exec->globalData(), xhr);
-
-    if (XMLHttpRequestUpload* upload = target->toXMLHttpRequestUpload())
-        return toJS(exec, upload);
-
-#if ENABLE(OFFLINE_WEB_APPLICATIONS)
-    if (DOMApplicationCache* cache = target->toDOMApplicationCache())
-        // DOMApplicationCache is always created via JS, so we don't need to use cacheDOMObject() here.
-        return getCachedDOMObjectWrapper(exec->globalData(), cache);
-#endif
-
-    if (MessagePort* messagePort = target->toMessagePort())
-        return toJS(exec, messagePort);
-
-#if ENABLE(WORKERS)
-    if (Worker* worker = target->toWorker())
-        return toJS(exec, worker);
-
-    if (WorkerContext* workerContext = target->toWorkerContext())
-        return toJSDOMGlobalObject(workerContext);
-#endif
-
-    ASSERT_NOT_REACHED();
-    return jsNull();
-}
-
-} // namespace WebCore
-
-
+/*
+ * 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 "Document.h"
+#include "JSEventListener.h"
+#include "JSMessagePort.h"
+#include "JSNode.h"
+#include "JSXMLHttpRequest.h"
+#include "JSXMLHttpRequestUpload.h"
+#include "MessagePort.h"
+#include "XMLHttpRequest.h"
+#include "XMLHttpRequestUpload.h"
+
+#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 "JSWorker.h"
+#include "JSWorkerContext.h"
+#include "Worker.h"
+#include "WorkerContext.h"
+#endif
+
+using namespace JSC;
+
+namespace WebCore {
+
+JSValuePtr toJS(ExecState* exec, EventTarget* target)
+{
+    if (!target)
+        return jsNull();
+    
+#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, instance);
+#endif
+    
+    if (Node* node = target->toNode())
+        return toJS(exec, node);
+
+    if (XMLHttpRequest* xhr = target->toXMLHttpRequest())
+        // XMLHttpRequest is always created via JS, so we don't need to use cacheDOMObject() here.
+        return getCachedDOMObjectWrapper(exec->globalData(), xhr);
+
+    if (XMLHttpRequestUpload* upload = target->toXMLHttpRequestUpload())
+        return toJS(exec, upload);
+
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+    if (DOMApplicationCache* cache = target->toDOMApplicationCache())
+        // DOMApplicationCache is always created via JS, so we don't need to use cacheDOMObject() here.
+        return getCachedDOMObjectWrapper(exec->globalData(), cache);
+#endif
+
+    if (MessagePort* messagePort = target->toMessagePort())
+        return toJS(exec, messagePort);
+
+#if ENABLE(WORKERS)
+    if (Worker* worker = target->toWorker())
+        return toJS(exec, worker);
+
+    if (WorkerContext* workerContext = target->toWorkerContext())
+        return toJSDOMGlobalObject(workerContext);
+#endif
+
+    ASSERT_NOT_REACHED();
+    return jsNull();
+}
+
+EventTarget* toEventTarget(JSC::JSValuePtr value)
+{
+    #define CONVERT_TO_EVENT_TARGET(type) \
+        if (value.isObject(&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 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(WorkerContext)
+#endif
+
+    return 0;
+}
+
+} // namespace WebCore
+
+