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/*
* 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 "ScriptExecutionContext.h"
#include "WorkerContextProxy.h"
#include "WorkerLoaderProxy.h"
#include "WorkerMessagingProxy.h"
#include "WorkerObjectProxy.h"
#include "WebWorkerBase.h"
#include <public/WebFileSystem.h>
#include <wtf/OwnPtr.h>
#include <wtf/PassOwnPtr.h>
#include <wtf/RefPtr.h>
namespace WebKit {
class WebWorker;
class WebFrameImpl;
// This class provides chromium implementation for WorkerContextProxy, WorkerObjectProxy amd WorkerLoaderProxy
// for in-proc dedicated workers. It also acts as a bridge for workers to chromium implementation of file systems,
// databases and other related functionality.
//
// In essence, this class wraps WorkerMessagingProxy.
class WebWorkerClientImpl : public WebCore::WorkerContextProxy
, public WebCore::WorkerObjectProxy
, public WebWorkerBase
, public WebCommonWorkerClient {
public:
// WebCore::WorkerContextProxy Factory.
static WebCore::WorkerContextProxy* createWorkerContextProxy(WebCore::Worker*);
// WebCore::WorkerContextProxy methods:
// These are called on the thread that created the worker. In the renderer
// process, this will be the main WebKit thread.
virtual void startWorkerContext(const WebCore::KURL&,
const WTF::String&,
const WTF::String&,
WebCore::WorkerThreadStartMode) OVERRIDE;
virtual void terminateWorkerContext() OVERRIDE;
virtual void postMessageToWorkerContext(
PassRefPtr<WebCore::SerializedScriptValue> message,
PassOwnPtr<WebCore::MessagePortChannelArray> channels) OVERRIDE;
virtual bool hasPendingActivity() const OVERRIDE;
virtual void workerObjectDestroyed() OVERRIDE;
#if ENABLE(INSPECTOR)
virtual void connectToInspector(WebCore::WorkerContextProxy::PageInspector*) OVERRIDE;
virtual void disconnectFromInspector() OVERRIDE;
virtual void sendMessageToInspector(const String&) OVERRIDE;
virtual void postMessageToPageInspector(const String&) OVERRIDE;
virtual void updateInspectorStateCookie(const String&) OVERRIDE;
#endif
// WebCore::WorkerLoaderProxy methods:
virtual void postTaskToLoader(PassOwnPtr<WebCore::ScriptExecutionContext::Task>) OVERRIDE;
virtual bool postTaskForModeToWorkerContext(PassOwnPtr<WebCore::ScriptExecutionContext::Task>, const String& mode) OVERRIDE;
// WebCore::WorkerObjectProxy methods:
virtual void postMessageToWorkerObject(PassRefPtr<WebCore::SerializedScriptValue>, PassOwnPtr<WebCore::MessagePortChannelArray>) OVERRIDE;
virtual void postExceptionToWorkerObject(const String& errorMessage, int lineNumber, const String& sourceURL) OVERRIDE;
virtual void postConsoleMessageToWorkerObject(WebCore::MessageSource, WebCore::MessageType, WebCore::MessageLevel,
const String& message, int lineNumber, const String& sourceURL) OVERRIDE;
virtual void confirmMessageFromWorkerObject(bool) OVERRIDE;
virtual void reportPendingActivity(bool) OVERRIDE;
virtual void workerContextClosed() OVERRIDE;
virtual void workerContextDestroyed() OVERRIDE;
// WebWorkerClientBase methods:
virtual bool allowDatabase(WebFrame*, const WebString& name, const WebString& displayName, unsigned long estimatedSize) OVERRIDE;
virtual bool allowFileSystem();
virtual void openFileSystem(WebFileSystem::Type, long long size, bool create,
WebFileSystemCallbacks*) OVERRIDE;
virtual bool allowIndexedDB(const WebString& name) OVERRIDE;
// WebCommentWorkerBase methods:
virtual WebCommonWorkerClient* commonClient() OVERRIDE { return this; }
virtual WebView* view() const OVERRIDE;
private:
WebWorkerClientImpl(WebCore::Worker*, WebFrameImpl*);
virtual ~WebWorkerClientImpl();
WebCore::WorkerMessagingProxy* m_proxy;
// Guard against context from being destroyed before a worker exits.
RefPtr<WebCore::ScriptExecutionContext> m_scriptExecutionContext;
WebFrameImpl* m_webFrame;
};
} // namespace WebKit;
#endif // ENABLE(WORKERS)
#endif
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