AI 145796: Land the WebKit merge @r42026.

Automated import of CL 145796

1 files changed, 134 insertions, 0 deletions

diff --git a/WebCore/workers/WorkerContext.h b/WebCore/workers/WorkerContext.h
new file mode 100644
index 0000000..39a5b9b
--- /dev/null
+++ b/WebCore/workers/WorkerContext.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2008 Apple 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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. 
+ *
+ */
+
+#ifndef WorkerContext_h
+#define WorkerContext_h
+
+#if ENABLE(WORKERS)
+
+#include "AtomicStringHash.h"
+#include "EventListener.h"
+#include "EventTarget.h"
+#include "ScriptExecutionContext.h"
+#include "WorkerScriptController.h"
+#include <wtf/OwnPtr.h>
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+#include <wtf/RefPtr.h>
+
+namespace WebCore {
+
+    class ScheduledAction;
+    class WorkerLocation;
+    class WorkerNavigator;
+    class WorkerThread;
+
+    class WorkerContext : public RefCounted<WorkerContext>, public ScriptExecutionContext, public EventTarget {
+    public:
+        static PassRefPtr<WorkerContext> create(const KURL& url, const String& userAgent, WorkerThread* thread)
+        {
+            return adoptRef(new WorkerContext(url, userAgent, thread));
+        }
+
+        virtual ~WorkerContext();
+
+        virtual bool isWorkerContext() const { return true; }
+
+        virtual ScriptExecutionContext* scriptExecutionContext() const;
+
+        const KURL& url() const { return m_url; }
+        KURL completeURL(const String&) const;
+
+        virtual String userAgent(const KURL&) const;
+
+        WorkerLocation* location() const { return m_location.get(); }
+        WorkerNavigator* navigator() const;
+
+        WorkerScriptController* script() { return m_script.get(); }
+        void clearScript() { return m_script.clear(); }
+        WorkerThread* thread() { return m_thread; }
+
+        bool hasPendingActivity() const;
+
+        virtual void reportException(const String& errorMessage, int lineNumber, const String& sourceURL);
+        virtual void addMessage(MessageDestination, MessageSource, MessageLevel, const String& message, unsigned lineNumber, const String& sourceURL);
+        virtual void resourceRetrievedByXMLHttpRequest(unsigned long identifier, const ScriptString& sourceString);
+        virtual void scriptImported(unsigned long identifier, const String& sourceString);
+
+        virtual WorkerContext* toWorkerContext() { return this; }
+
+        void postMessage(const String& message);
+        virtual void postTask(PassRefPtr<Task>); // Executes the task on context's thread asynchronously.
+
+        int installTimeout(ScheduledAction*, int timeout, bool singleShot);
+        void removeTimeout(int timeoutId);
+
+        void dispatchMessage(const String&);
+
+        virtual void addEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture);
+        virtual void removeEventListener(const AtomicString& eventType, EventListener*, bool useCapture);
+        virtual bool dispatchEvent(PassRefPtr<Event>, ExceptionCode&);
+
+        void setOnmessage(PassRefPtr<EventListener> eventListener) { m_onmessageListener = eventListener; }
+        EventListener* onmessage() const { return m_onmessageListener.get(); }
+
+        typedef Vector<RefPtr<EventListener> > ListenerVector;
+        typedef HashMap<AtomicString, ListenerVector> EventListenersMap;
+        EventListenersMap& eventListeners() { return m_eventListeners; }
+
+        void importScripts(const Vector<String>& urls, const String& callerURL, int callerLine, ExceptionCode&);
+        
+        using RefCounted<WorkerContext>::ref;
+        using RefCounted<WorkerContext>::deref;
+
+    private:
+        virtual void refScriptExecutionContext() { ref(); }
+        virtual void derefScriptExecutionContext() { deref(); }
+        virtual void refEventTarget() { ref(); }
+        virtual void derefEventTarget() { deref(); }
+
+        WorkerContext(const KURL&, const String&, WorkerThread*);
+
+        virtual const KURL& virtualURL() const;
+        virtual KURL virtualCompleteURL(const String&) const;
+
+        KURL m_url;
+        String m_userAgent;
+        RefPtr<WorkerLocation> m_location;
+        mutable RefPtr<WorkerNavigator> m_navigator;
+
+        OwnPtr<WorkerScriptController> m_script;
+        WorkerThread* m_thread;
+
+        RefPtr<EventListener> m_onmessageListener;
+        EventListenersMap m_eventListeners;
+    };
+
+} // namespace WebCore
+
+#endif // ENABLE(WORKERS)
+
+#endif // WorkerContext_h