#include "config.h"
#if ENABLE(WORKERS)
#include "WorkerContext.h"
#include "ActiveDOMObject.h"
#include "DOMWindow.h"
#include "Event.h"
#include "EventException.h"
#include "GenericWorkerTask.h"
#include "NotImplemented.h"
#include "SecurityOrigin.h"
#include "WorkerLocation.h"
#include "WorkerMessagingProxy.h"
#include "WorkerNavigator.h"
#include "WorkerTask.h"
#include "WorkerThread.h"
#include <wtf/RefPtr.h>
namespace WebCore {
WorkerContext::WorkerContext(const KURL& url, const String& userAgent, WorkerThread* thread)
: m_url(url)
, m_userAgent(userAgent)
, m_location(WorkerLocation::create(url))
, m_script(new WorkerScriptController(this))
, m_thread(thread)
{
setSecurityOrigin(SecurityOrigin::create(url));
}
WorkerContext::~WorkerContext()
{
ASSERT(currentThread() == m_thread->threadID());
m_thread->messagingProxy()->workerContextDestroyed();
}
ScriptExecutionContext* WorkerContext::scriptExecutionContext() const
{
return const_cast<WorkerContext*>(this);
}
const KURL& WorkerContext::virtualURL() const
{
return m_url;
}
KURL WorkerContext::virtualCompleteURL(const String& url) const
{
return completeURL(url);
}
KURL WorkerContext::completeURL(const String& url) const
{
if (url.isNull())
return KURL();
return KURL(m_location->url(), url);
}
WorkerNavigator* WorkerContext::navigator() const
{
if (!m_navigator)
m_navigator = WorkerNavigator::create(m_userAgent);
return m_navigator.get();
}
bool WorkerContext::hasPendingActivity() const
{
ActiveDOMObjectsMap& activeObjects = activeDOMObjects();
ActiveDOMObjectsMap::const_iterator activeObjectsEnd = activeObjects.end();
for (ActiveDOMObjectsMap::const_iterator iter = activeObjects.begin(); iter != activeObjectsEnd; ++iter) {
if (iter->first->hasPendingActivity())
return true;
}
return false;
}
void WorkerContext::reportException(const String& errorMessage, int lineNumber, const String& sourceURL)
{
m_thread->messagingProxy()->postWorkerException(errorMessage, lineNumber, sourceURL);
}
static void addMessageTask(ScriptExecutionContext* context, MessageDestination destination, MessageSource source, MessageLevel level, const String& message, unsigned lineNumber, const String& sourceURL)
{
context->addMessage(destination, source, level, message, lineNumber, sourceURL);
}
void WorkerContext::addMessage(MessageDestination destination, MessageSource source, MessageLevel level, const String& message, unsigned lineNumber, const String& sourceURL)
{
RefPtr<Task> task = createCallbackTask(m_thread->messagingProxy(), &addMessageTask, destination, source, level, message.copy(), lineNumber, sourceURL.copy());
postTaskToParentContext(task.release());
}
void WorkerContext::resourceRetrievedByXMLHttpRequest(unsigned long, const ScriptString&)
{
notImplemented();
}
void WorkerContext::postMessage(const String& message)
{
m_thread->messagingProxy()->postMessageToWorkerObject(message);
}
void WorkerContext::addEventListener(const AtomicString& eventType, PassRefPtr<EventListener> eventListener, bool)
{
EventListenersMap::iterator iter = m_eventListeners.find(eventType);
if (iter == m_eventListeners.end()) {
ListenerVector listeners;
listeners.append(eventListener);
m_eventListeners.add(eventType, listeners);
} else {
ListenerVector& listeners = iter->second;
for (ListenerVector::iterator listenerIter = listeners.begin(); listenerIter != listeners.end(); ++listenerIter) {
if (*listenerIter == eventListener)
return;
}
listeners.append(eventListener);
m_eventListeners.add(eventType, listeners);
}
}
void WorkerContext::removeEventListener(const AtomicString& eventType, EventListener* eventListener, bool)
{
EventListenersMap::iterator iter = m_eventListeners.find(eventType);
if (iter == m_eventListeners.end())
return;
ListenerVector& listeners = iter->second;
for (ListenerVector::const_iterator listenerIter = listeners.begin(); listenerIter != listeners.end(); ++listenerIter) {
if (*listenerIter == eventListener) {
listeners.remove(listenerIter - listeners.begin());
return;
}
}
}
bool WorkerContext::dispatchEvent(PassRefPtr<Event> event, ExceptionCode& ec)
{
if (!event || event->type().isEmpty()) {
ec = EventException::UNSPECIFIED_EVENT_TYPE_ERR;
return true;
}
ListenerVector listenersCopy = m_eventListeners.get(event->type());
for (ListenerVector::const_iterator listenerIter = listenersCopy.begin(); listenerIter != listenersCopy.end(); ++listenerIter) {
event->setTarget(this);
event->setCurrentTarget(this);
listenerIter->get()->handleEvent(event.get(), false);
}
return !event->defaultPrevented();
}
class ScriptExecutionContextTaskWorkerTask : public WorkerTask {
public:
static PassRefPtr<ScriptExecutionContextTaskWorkerTask> create(PassRefPtr<ScriptExecutionContext::Task> task)
{
return adoptRef(new ScriptExecutionContextTaskWorkerTask(task));
}
private:
ScriptExecutionContextTaskWorkerTask(PassRefPtr<ScriptExecutionContext::Task> task)
: m_task(task)
{
}
virtual void performTask(WorkerContext* context)
{
m_task->performTask(context);
}
RefPtr<ScriptExecutionContext::Task> m_task;
};
void WorkerContext::postTask(PassRefPtr<Task> task)
{
thread()->runLoop().postTask(ScriptExecutionContextTaskWorkerTask::create(task));
}
void WorkerContext::postTaskToParentContext(PassRefPtr<Task> task)
{
thread()->messagingProxy()->postTaskToParentContext(task);
}
}
#endif // ENABLE(WORKERS)