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27 #ifndef WorkerContext_h
28 #define WorkerContext_h
32 #include "AtomicStringHash.h"
33 #include "EventListener.h"
34 #include "EventTarget.h"
35 #include "ScriptExecutionContext.h"
36 #include "WorkerScriptController.h"
37 #include <wtf/OwnPtr.h>
38 #include <wtf/PassRefPtr.h>
39 #include <wtf/RefCounted.h>
40 #include <wtf/RefPtr.h>
44 class ScheduledAction;
46 class WorkerNavigator;
49 class WorkerContext : public RefCounted<WorkerContext>, public ScriptExecutionContext, public EventTarget {
51 static PassRefPtr<WorkerContext> create(const KURL& url, const String& userAgent, WorkerThread* thread)
53 return adoptRef(new WorkerContext(url, userAgent, thread));
56 virtual ~WorkerContext();
58 virtual bool isWorkerContext() const { return true; }
60 virtual WorkerContext* toWorkerContext() { return this; }
62 virtual ScriptExecutionContext* scriptExecutionContext() const;
64 const KURL& url() const { return m_url; }
65 KURL completeURL(const String&) const;
67 virtual String userAgent(const KURL&) const;
69 WorkerScriptController* script() { return m_script.get(); }
70 void clearScript() { return m_script.clear(); }
72 WorkerThread* thread() { return m_thread; }
74 bool hasPendingActivity() const;
76 virtual void reportException(const String& errorMessage, int lineNumber, const String& sourceURL);
77 virtual void addMessage(MessageDestination, MessageSource, MessageType, MessageLevel, const String& message, unsigned lineNumber, const String& sourceURL);
78 virtual void resourceRetrievedByXMLHttpRequest(unsigned long identifier, const ScriptString& sourceString);
79 virtual void scriptImported(unsigned long identifier, const String& sourceString);
81 virtual void postTask(PassRefPtr<Task>); // Executes the task on context's thread asynchronously.
84 WorkerContext* self() { return this; }
85 WorkerLocation* location() const;
87 void setOnerror(PassRefPtr<EventListener> eventListener) { m_onerrorListener = eventListener; }
88 EventListener* onerror() const { return m_onerrorListener.get(); }
91 void importScripts(const Vector<String>& urls, const String& callerURL, int callerLine, ExceptionCode&);
92 WorkerNavigator* navigator() const;
94 // DedicatedWorkerGlobalScope
95 void postMessage(const String&, ExceptionCode&);
96 void postMessage(const String&, MessagePort*, ExceptionCode&);
97 void setOnmessage(PassRefPtr<EventListener> eventListener) { m_onmessageListener = eventListener; }
98 EventListener* onmessage() const { return m_onmessageListener.get(); }
101 int setTimeout(ScheduledAction*, int timeout);
102 void clearTimeout(int timeoutId);
103 int setInterval(ScheduledAction*, int timeout);
104 void clearInterval(int timeoutId);
107 virtual void addEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture);
108 virtual void removeEventListener(const AtomicString& eventType, EventListener*, bool useCapture);
109 virtual bool dispatchEvent(PassRefPtr<Event>, ExceptionCode&);
111 typedef Vector<RefPtr<EventListener> > ListenerVector;
112 typedef HashMap<AtomicString, ListenerVector> EventListenersMap;
113 EventListenersMap& eventListeners() { return m_eventListeners; }
115 void dispatchMessage(const String&, PassRefPtr<MessagePort>);
117 // These methods are used for GC marking. See JSWorkerContext::mark() in
118 // JSWorkerContextCustom.cpp.
119 WorkerNavigator* optionalNavigator() const { return m_navigator.get(); }
120 WorkerLocation* optionalLocation() const { return m_location.get(); }
122 using RefCounted<WorkerContext>::ref;
123 using RefCounted<WorkerContext>::deref;
126 WorkerContext(const KURL&, const String&, WorkerThread*);
128 virtual void refScriptExecutionContext() { ref(); }
129 virtual void derefScriptExecutionContext() { deref(); }
130 virtual void refEventTarget() { ref(); }
131 virtual void derefEventTarget() { deref(); }
133 virtual const KURL& virtualURL() const;
134 virtual KURL virtualCompleteURL(const String&) const;
139 mutable RefPtr<WorkerLocation> m_location;
140 mutable RefPtr<WorkerNavigator> m_navigator;
142 OwnPtr<WorkerScriptController> m_script;
143 WorkerThread* m_thread;
145 RefPtr<EventListener> m_onerrorListener;
146 RefPtr<EventListener> m_onmessageListener;
147 EventListenersMap m_eventListeners;
152 } // namespace WebCore
154 #endif // ENABLE(WORKERS)
156 #endif // WorkerContext_h