1/*
2 * Copyright (C) 2015 Apple 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
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef WebProcessLifetimeTracker_h
27#define WebProcessLifetimeTracker_h
28
29#include <wtf/HashSet.h>
30
31namespace IPC {
32class Connection;
33}
34
35namespace WebKit {
36
37class WebPageProxy;
38class WebProcessLifetimeObserver;
39class WebProcessProxy;
40
41class WebProcessLifetimeTracker {
42public:
43 explicit WebProcessLifetimeTracker(WebPageProxy&);
44 ~WebProcessLifetimeTracker();
45
46 void addObserver(WebProcessLifetimeObserver&);
47
48 void webPageEnteringWebProcess(WebProcessProxy&);
49 void webPageLeavingWebProcess(WebProcessProxy&);
50
51 void pageWasInvalidated();
52
53private:
54 static bool processIsRunning(WebProcessProxy&);
55
56 WebPageProxy& m_webPageProxy;
57
58 HashSet<WebProcessLifetimeObserver*> m_observers;
59};
60
61}
62
63#endif // WebProcessLifetimeTracker_h
64