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 SharedWorkerRepository_h
32#define SharedWorkerRepository_h
33
34#if ENABLE(SHARED_WORKERS)
35
36#include "ExceptionCode.h"
37#include <wtf/Forward.h>
38#include <wtf/PassOwnPtr.h>
39#include <wtf/PassRefPtr.h>
40
41namespace WebCore {
42
43    class Document;
44    class KURL;
45    class MessagePortChannel;
46    class SharedWorker;
47
48    // Interface to a repository which manages references to the set of active shared workers.
49    class SharedWorkerRepository {
50    public:
51        // Returns true if the platform supports SharedWorkers, otherwise false.
52        static bool isAvailable();
53
54        // Connects the passed SharedWorker object with the specified worker thread, creating a new thread if necessary.
55        static void connect(PassRefPtr<SharedWorker>, PassOwnPtr<MessagePortChannel>, const KURL&, const String& name, ExceptionCode&);
56
57        // Invoked when a document has been detached.
58        static void documentDetached(Document*);
59
60        // Returns true if the passed document is associated with any SharedWorkers.
61        static bool hasSharedWorkers(Document*);
62    private:
63        SharedWorkerRepository() { }
64    };
65
66} // namespace WebCore
67
68#endif // ENABLE(SHARED_WORKERS)
69
70#endif // SharedWorkerRepository_h
71