1/*
2 * Copyright (C) 2009 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef WebWorkerImpl_h
32#define WebWorkerImpl_h
33
34#include "WebWorker.h"
35
36#if ENABLE(WORKERS)
37
38#include "ScriptExecutionContext.h"
39
40#include "WebWorkerBase.h"
41
42namespace WebKit {
43class WebView;
44
45// This class is used by the worker process code to talk to the WebCore::Worker
46// implementation.  It can't use it directly since it uses WebKit types, so this
47// class converts the data types.  When the WebCore::Worker object wants to call
48// WebCore::WorkerObjectProxy, this class will conver to Chrome data types first
49// and then call the supplied WebWorkerClient.
50class WebWorkerImpl : public WebWorkerBase, public WebWorker {
51public:
52    explicit WebWorkerImpl(WebWorkerClient* client);
53
54    // WebWorker methods:
55    virtual void startWorkerContext(const WebURL&, const WebString&, const WebString&);
56    virtual void terminateWorkerContext();
57    virtual void postMessageToWorkerContext(const WebString&, const WebMessagePortChannelArray&);
58    virtual void workerObjectDestroyed();
59    virtual void clientDestroyed();
60
61    // WebWorkerBase methods:
62    virtual WebWorkerClient* client() { return m_client; }
63    virtual WebCommonWorkerClient* commonClient();
64
65private:
66    virtual ~WebWorkerImpl();
67
68    // Tasks that are run on the worker thread.
69    static void postMessageToWorkerContextTask(
70        WebCore::ScriptExecutionContext* context,
71        WebWorkerImpl* thisPtr,
72        const WTF::String& message,
73        PassOwnPtr<WebCore::MessagePortChannelArray> channels);
74
75    WebWorkerClient* m_client;
76
77};
78
79} // namespace WebKit
80
81#endif // ENABLE(WORKERS)
82
83#endif
84