--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKit/chromium/src/WebWorkerClientImpl.h Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,164 @@
+/*
+ * 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.
+ */
+
+#ifndef WebWorkerClientImpl_h
+#define WebWorkerClientImpl_h
+
+#if ENABLE(WORKERS)
+
+#include "WebWorkerClient.h"
+
+#include "WorkerContextProxy.h"
+#include <wtf/PassOwnPtr.h>
+#include <wtf/RefPtr.h>
+
+namespace WebCore {
+class ScriptExecutionContext;
+}
+
+namespace WebKit {
+class WebWorker;
+
+// The purpose of this class is to provide a WorkerContextProxy
+// implementation that we can give to WebKit. Internally, it converts the
+// data types to Chrome compatible ones so that renderer code can use it over
+// IPC.
+class WebWorkerClientImpl : public WebCore::WorkerContextProxy
+ , public WebWorkerClient {
+public:
+ WebWorkerClientImpl(WebCore::Worker*);
+
+ // WebCore::WorkerContextProxy Factory.
+ static WebCore::WorkerContextProxy* createWorkerContextProxy(WebCore::Worker*);
+ void setWebWorker(WebWorker*);
+
+ // WebCore::WorkerContextProxy methods:
+ // These are called on the thread that created the worker. In the renderer
+ // process, this will be the main WebKit thread. In the worker process, this
+ // will be the thread of the executing worker (not the main WebKit thread).
+ virtual void startWorkerContext(const WebCore::KURL&,
+ const WebCore::String&,
+ const WebCore::String&);
+ virtual void terminateWorkerContext();
+ virtual void postMessageToWorkerContext(
+ PassRefPtr<WebCore::SerializedScriptValue> message,
+ PassOwnPtr<WebCore::MessagePortChannelArray> channels);
+ virtual bool hasPendingActivity() const;
+ virtual void workerObjectDestroyed();
+
+ // WebWorkerClient methods:
+ // These are called on the main WebKit thread.
+ virtual void postMessageToWorkerObject(const WebString&, const WebMessagePortChannelArray&);
+ virtual void postExceptionToWorkerObject(const WebString&, int, const WebString&);
+
+ // FIXME: the below is for compatibility only and should be
+ // removed once Chromium is updated to remove message
+ // destination parameter <http://webkit.org/b/37155>.
+ virtual void postConsoleMessageToWorkerObject(int, int, int, int, const WebString&, int, const WebString&);
+ virtual void postConsoleMessageToWorkerObject(int, int, int, const WebString&, int, const WebString&);
+ virtual void confirmMessageFromWorkerObject(bool);
+ virtual void reportPendingActivity(bool);
+ virtual void workerContextClosed();
+ virtual void workerContextDestroyed();
+ virtual WebWorker* createWorker(WebWorkerClient*) { return 0; }
+ virtual WebNotificationPresenter* notificationPresenter()
+ {
+ // FIXME: Notifications not yet supported in workers.
+ return 0;
+ }
+ virtual WebApplicationCacheHost* createApplicationCacheHost(WebApplicationCacheHostClient*) { return 0; }
+ virtual bool allowDatabase(WebFrame*, const WebString& name, const WebString& displayName, unsigned long estimatedSize)
+ {
+ ASSERT_NOT_REACHED();
+ return true;
+ }
+
+private:
+ virtual ~WebWorkerClientImpl();
+
+ // Methods used to support WebWorkerClientImpl being constructed on worker
+ // threads.
+ // These tasks are dispatched on the WebKit thread.
+ static void startWorkerContextTask(WebCore::ScriptExecutionContext* context,
+ WebWorkerClientImpl* thisPtr,
+ const WebCore::String& scriptURL,
+ const WebCore::String& userAgent,
+ const WebCore::String& sourceCode);
+ static void terminateWorkerContextTask(WebCore::ScriptExecutionContext* context,
+ WebWorkerClientImpl* thisPtr);
+ static void postMessageToWorkerContextTask(WebCore::ScriptExecutionContext* context,
+ WebWorkerClientImpl* thisPtr,
+ const WebCore::String& message,
+ PassOwnPtr<WebCore::MessagePortChannelArray> channels);
+ static void workerObjectDestroyedTask(WebCore::ScriptExecutionContext* context,
+ WebWorkerClientImpl* thisPtr);
+
+ // These tasks are dispatched on the thread that created the worker (i.e.
+ // main WebKit thread in renderer process, and the worker thread in the
+ // worker process).
+ static void postMessageToWorkerObjectTask(WebCore::ScriptExecutionContext* context,
+ WebWorkerClientImpl* thisPtr,
+ const WebCore::String& message,
+ PassOwnPtr<WebCore::MessagePortChannelArray> channels);
+ static void postExceptionToWorkerObjectTask(WebCore::ScriptExecutionContext* context,
+ WebWorkerClientImpl* thisPtr,
+ const WebCore::String& message,
+ int lineNumber,
+ const WebCore::String& sourceURL);
+ static void postConsoleMessageToWorkerObjectTask(WebCore::ScriptExecutionContext* context,
+ WebWorkerClientImpl* thisPtr,
+ int sourceId,
+ int messageType,
+ int messageLevel,
+ const WebCore::String& message,
+ int lineNumber,
+ const WebCore::String& sourceURL);
+ static void confirmMessageFromWorkerObjectTask(WebCore::ScriptExecutionContext* context,
+ WebWorkerClientImpl* thisPtr);
+ static void reportPendingActivityTask(WebCore::ScriptExecutionContext* context,
+ WebWorkerClientImpl* thisPtr,
+ bool hasPendingActivity);
+
+ // Guard against context from being destroyed before a worker exits.
+ RefPtr<WebCore::ScriptExecutionContext> m_scriptExecutionContext;
+
+ WebCore::Worker* m_worker;
+ WebWorker* m_webWorker;
+ bool m_askedToTerminate;
+ unsigned m_unconfirmedMessageCount;
+ bool m_workerContextHadPendingActivity;
+ ThreadIdentifier m_workerThreadId;
+};
+
+} // namespace WebKit;
+
+#endif // ENABLE(WORKERS)
+
+#endif