[Cocoa] WKCustomProtocolLoader should store a WeakPtr to its LegacyCustomProtocolMana...
[WebKit-https.git] / Source / WebKit / UIProcess / WebProcessLifetimeTracker.cpp
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 #include "config.h"
27 #include "WebProcessLifetimeTracker.h"
28
29 #include "WebPageProxy.h"
30 #include "WebProcessLifetimeObserver.h"
31 #include "WebProcessProxy.h"
32
33 namespace WebKit {
34
35 WebProcessLifetimeTracker::WebProcessLifetimeTracker(WebPageProxy& webPageProxy)
36     : m_webPageProxy(webPageProxy)
37 {
38 }
39
40 WebProcessLifetimeTracker::~WebProcessLifetimeTracker()
41 {
42 }
43
44 void WebProcessLifetimeTracker::addObserver(WebProcessLifetimeObserver& observer)
45 {
46     ASSERT(!m_observers.contains(&observer));
47
48     m_observers.add(&observer);
49
50     observer.webPageWasAdded(m_webPageProxy);
51
52     if (processIsRunning(m_webPageProxy.process()))
53         observer.addWebPage(m_webPageProxy, m_webPageProxy.process());
54 }
55
56 void WebProcessLifetimeTracker::webPageEnteringWebProcess(WebProcessProxy& process)
57 {
58     ASSERT(processIsRunning(process));
59
60     for (auto& observer : m_observers)
61         observer->addWebPage(m_webPageProxy, process);
62 }
63
64 void WebProcessLifetimeTracker::webPageLeavingWebProcess(WebProcessProxy& process)
65 {
66     ASSERT(processIsRunning(process));
67
68     for (auto& observer : m_observers)
69         observer->removeWebPage(m_webPageProxy, process);
70 }
71
72 void WebProcessLifetimeTracker::pageWasInvalidated()
73 {
74     if (!processIsRunning(m_webPageProxy.process()))
75         return;
76
77     for (auto& observer : m_observers) {
78         observer->removeWebPage(m_webPageProxy, m_webPageProxy.process());
79
80         observer->webPageWasInvalidated(m_webPageProxy);
81     }
82 }
83
84 bool WebProcessLifetimeTracker::processIsRunning(WebProcessProxy& process)
85 {
86     return process.state() == WebProcessProxy::State::Running;
87 }
88
89 }