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
33namespace WebKit {
34
35WebProcessLifetimeTracker::WebProcessLifetimeTracker(WebPageProxy& webPageProxy)
36 : m_webPageProxy(webPageProxy)
37{
38}
39
40WebProcessLifetimeTracker::~WebProcessLifetimeTracker()
41{
42}
43
44void 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
56void WebProcessLifetimeTracker::webPageEnteringWebProcess(WebProcessProxy& process)
57{
58 ASSERT(processIsRunning(process));
59
60 for (auto& observer : m_observers)
61 observer->addWebPage(m_webPageProxy, process);
62}
63
64void WebProcessLifetimeTracker::webPageLeavingWebProcess(WebProcessProxy& process)
65{
66 ASSERT(processIsRunning(process));
67
68 for (auto& observer : m_observers)
69 observer->removeWebPage(m_webPageProxy, process);
70}
71
72void 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
84bool WebProcessLifetimeTracker::processIsRunning(WebProcessProxy& process)
85{
86 return process.state() == WebProcessProxy::State::Running;
87}
88
89}
90