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/*
* Copyright (C) 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"
#include "ExceptionCode.h"
#include "MessagePort.h"
#include "V8Binding.h"
#include "V8CustomBinding.h"
#include "V8ObjectEventListener.h"
#include "V8Proxy.h"
#include "V8Utilities.h"
#include "WorkerContextExecutionProxy.h"
namespace WebCore {
PassRefPtr<EventListener> getEventListener(MessagePort* messagePort, v8::Local<v8::Value> value, bool findOnly, bool createObjectEventListener)
{
V8Proxy* proxy = V8Proxy::retrieve(messagePort->scriptExecutionContext());
if (proxy) {
V8EventListenerList* list = proxy->objectListeners();
return findOnly ? list->findWrapper(value, false) : list->findOrCreateWrapper<V8ObjectEventListener>(proxy->frame(), value, false);
}
#if ENABLE(WORKERS)
WorkerContextExecutionProxy* workerContextProxy = WorkerContextExecutionProxy::retrieve();
if (workerContextProxy)
return workerContextProxy->findOrCreateEventListenerHelper(value, false, findOnly, createObjectEventListener);
#endif
return PassRefPtr<EventListener>();
}
ACCESSOR_GETTER(MessagePortOnmessage)
{
INC_STATS("DOM.MessagePort.onmessage._get");
MessagePort* messagePort = V8DOMWrapper::convertToNativeObject<MessagePort>(V8ClassIndex::MESSAGEPORT, info.Holder());
return V8DOMWrapper::convertEventListenerToV8Object(messagePort->onmessage());
}
ACCESSOR_SETTER(MessagePortOnmessage)
{
INC_STATS("DOM.MessagePort.onmessage._set");
MessagePort* messagePort = V8DOMWrapper::convertToNativeObject<MessagePort>(V8ClassIndex::MESSAGEPORT, info.Holder());
if (value->IsNull()) {
if (messagePort->onmessage()) {
V8ObjectEventListener* listener = static_cast<V8ObjectEventListener*>(messagePort->onmessage());
removeHiddenDependency(info.Holder(), listener->getListenerObject(), V8Custom::kMessagePortRequestCacheIndex);
}
// Clear the listener.
messagePort->setOnmessage(0);
} else {
RefPtr<EventListener> listener = getEventListener(messagePort, value, false, false);
if (listener) {
messagePort->setOnmessage(listener);
createHiddenDependency(info.Holder(), value, V8Custom::kMessagePortRequestCacheIndex);
}
}
}
CALLBACK_FUNC_DECL(MessagePortAddEventListener)
{
INC_STATS("DOM.MessagePort.addEventListener()");
MessagePort* messagePort = V8DOMWrapper::convertToNativeObject<MessagePort>(V8ClassIndex::MESSAGEPORT, args.Holder());
RefPtr<EventListener> listener = getEventListener(messagePort, args[1], false, true);
if (listener) {
String type = toWebCoreString(args[0]);
bool useCapture = args[2]->BooleanValue();
messagePort->addEventListener(type, listener, useCapture);
createHiddenDependency(args.Holder(), args[1], V8Custom::kMessagePortRequestCacheIndex);
}
return v8::Undefined();
}
CALLBACK_FUNC_DECL(MessagePortRemoveEventListener)
{
INC_STATS("DOM.MessagePort.removeEventListener()");
MessagePort* messagePort = V8DOMWrapper::convertToNativeObject<MessagePort>(V8ClassIndex::MESSAGEPORT, args.Holder());
RefPtr<EventListener> listener = getEventListener(messagePort, args[1], true, true);
if (listener) {
String type = toWebCoreString(args[0]);
bool useCapture = args[2]->BooleanValue();
messagePort->removeEventListener(type, listener.get(), useCapture);
removeHiddenDependency(args.Holder(), args[1], V8Custom::kMessagePortRequestCacheIndex);
}
return v8::Undefined();
}
} // namespace WebCore
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