Index: third_party/WebKit/WebCore/bindings/v8/V8WorkerContextEventListener.cpp |
=================================================================== |
--- third_party/WebKit/WebCore/bindings/v8/V8WorkerContextEventListener.cpp (revision 0) |
+++ third_party/WebKit/WebCore/bindings/v8/V8WorkerContextEventListener.cpp (revision 11711) |
@@ -0,0 +1,113 @@ |
+/* |
+ * Copyright (C) 2006, 2007, 2008, 2009 Google 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: |
+ * |
+ * * Redistributions of source code must retain the above copyright |
+ * notice, this list of conditions and the following disclaimer. |
+ * * 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. |
+ * * Neither the name of Google Inc. nor the names of its |
+ * contributors may be used to endorse or promote products derived from |
+ * this software without specific prior written permission. |
+ * |
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
+ * "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 THE COPYRIGHT |
+ * OWNER 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" |
+ |
+#if ENABLE(WORKERS) |
+ |
+#include "V8WorkerContextEventListener.h" |
+ |
+#include "Event.h" |
+#include "WorkerContextExecutionProxy.h" |
+ |
+namespace WebCore { |
+ |
+V8WorkerContextEventListener::V8WorkerContextEventListener(WorkerContextExecutionProxy* proxy, v8::Local<v8::Object> listener, bool isInline) |
+ : V8ObjectEventListener(0, listener, isInline) |
+ , m_proxy(proxy) |
+{ |
+} |
+ |
+V8WorkerContextEventListener::~V8WorkerContextEventListener() |
+{ |
+ if (m_proxy) |
+ m_proxy->RemoveEventListener(this); |
+ disposeListenerObject(); |
+} |
+ |
+void V8WorkerContextEventListener::handleEvent(Event* event, bool isWindowEvent) |
+{ |
+ // Is the EventListener disconnected from the frame? |
+ if (disconnected()) |
+ return; |
+ |
+ // The callback function on XMLHttpRequest can clear the event listener and destroys 'this' object. Keep a local reference to it. |
+ // See issue 889829. |
+ RefPtr<V8AbstractEventListener> protect(this); |
+ |
+ v8::Locker locker; |
+ v8::HandleScope handleScope; |
+ |
+ v8::Handle<v8::Context> context = m_proxy->GetContext(); |
+ if (context.IsEmpty()) |
+ return; |
+ |
+ // Enter the V8 context in which to perform the event handling. |
+ v8::Context::Scope scope(context); |
+ |
+ // Get the V8 wrapper for the event object. |
+ v8::Handle<v8::Value> jsEvent = WorkerContextExecutionProxy::EventToV8Object(event); |
+ |
+ invokeEventHandler(context, event, jsEvent, isWindowEvent); |
+} |
+ |
+v8::Local<v8::Value> V8WorkerContextEventListener::callListenerFunction(v8::Handle<v8::Value> jsEvent, Event* event, bool isWindowEvent) |
+{ |
+ v8::Local<v8::Function> handlerFunction = getListenerFunction(); |
+ if (handlerFunction.IsEmpty()) |
+ return v8::Local<v8::Value>(); |
+ |
+ v8::Local<v8::Object> receiver = getReceiverObject(event, isWindowEvent); |
+ v8::Handle<v8::Value> parameters[1] = { jsEvent }; |
+ v8::Local<v8::Value> result = handlerFunction->Call(receiver, 1, parameters); |
+ |
+ m_proxy->TrackEvent(event); |
+ |
+ return result; |
+} |
+ |
+v8::Local<v8::Object> V8WorkerContextEventListener::getReceiverObject(Event* event, bool isWindowEvent) |
+{ |
+ if (!m_listener.IsEmpty() && !m_listener->IsFunction()) |
+ return v8::Local<v8::Object>::New(m_listener); |
+ |
+ if (isWindowEvent) |
+ return v8::Context::GetCurrent()->Global(); |
+ |
+ EventTarget* target = event->currentTarget(); |
+ v8::Handle<v8::Value> value = WorkerContextExecutionProxy::EventTargetToV8Object(target); |
+ if (value.IsEmpty()) |
+ return v8::Local<v8::Object>(); |
+ return v8::Local<v8::Object>::New(v8::Handle<v8::Object>::Cast(value)); |
+} |
+ |
+} // namespace WebCore |
+ |
+#endif // WORKERS |