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 WebProcessLifetimeObserver_h
27#define WebProcessLifetimeObserver_h
28
29#include <wtf/HashCountedSet.h>
30#include <wtf/IteratorRange.h>
31
32namespace IPC {
33class Connection;
34}
35
36namespace WebKit {
37
38class WebPageProxy;
39class WebProcessProxy;
40
41class WebProcessLifetimeObserver {
42public:
43 WebProcessLifetimeObserver();
44 virtual ~WebProcessLifetimeObserver();
45
46 void addWebPage(WebPageProxy&, WebProcessProxy&);
47 void removeWebPage(WebPageProxy&, WebProcessProxy&);
48
49 WTF::IteratorRange<HashCountedSet<WebProcessProxy*>::const_iterator::Keys> processes() const;
50
51 bool hasProcess(WebProcessProxy* process) const { return m_processes.contains(process); }
52
53private:
54 friend class WebProcessLifetimeTracker;
55
56 virtual void webPageWasAdded(WebPageProxy&) { }
57 virtual void webProcessWillOpenConnection(WebProcessProxy&, IPC::Connection&) { }
58 virtual void webPageWillOpenConnection(WebPageProxy&, IPC::Connection&) { }
59 virtual void webPageDidCloseConnection(WebPageProxy&, IPC::Connection&) { }
60 virtual void webProcessDidCloseConnection(WebProcessProxy&, IPC::Connection&) { }
61 virtual void webPageWasInvalidated(WebPageProxy&) { }
62
63 HashCountedSet<WebProcessProxy*> m_processes;
64};
65
66}
67
68#endif // WebProcessLifetimeObserver_h
69