Move webworker{client}_impl.{h,cc} into webkit/api/src

webkit/api/src/WebWorkerClientImpl.h

+/*
+ * 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)
+
+// FIXME: fix to just "WebWorkerClient.h" once nobody in glue depends on us.
+#include "../public/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&);
+    virtual void postConsoleMessageToWorkerObject(int, int, int, int, const WebString&,
+                                                  int, const WebString&);
+    virtual void confirmMessageFromWorkerObject(bool);
+    virtual void reportPendingActivity(bool);
+    virtual void workerContextDestroyed();
+    virtual WebWorker* createWorker(WebWorkerClient*) { return 0; }
+    virtual WebNotificationPresenter* notificationPresenter()
+    {
+        // FIXME: Notifications not yet supported in workers.
+        return 0;
+    }
+
+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 destinationId,
+                                                     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;
+    uint32 m_unconfirmedMessageCount;
+    bool m_workerContextHadPendingActivity;
+    ThreadIdentifier m_workerThreadId;
+};
+
+} // namespace WebKit;
+
+#endif // ENABLE(WORKERS)
+
+#endif