diff options
Diffstat (limited to 'WebCore/bindings/v8/V8WorkerContextEventListener.cpp')
-rw-r--r-- | WebCore/bindings/v8/V8WorkerContextEventListener.cpp | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/WebCore/bindings/v8/V8WorkerContextEventListener.cpp b/WebCore/bindings/v8/V8WorkerContextEventListener.cpp new file mode 100644 index 0000000..ba7a2c0 --- /dev/null +++ b/WebCore/bindings/v8/V8WorkerContextEventListener.cpp @@ -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 |