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1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "config.h" | |
6 #include "modules/wake_lock/ScreenWakeLock.h" | |
7 | |
8 #include "core/frame/LocalFrame.h" | |
9 #include "core/frame/Screen.h" | |
10 #include "core/page/PageVisibilityState.h" | |
11 #include "platform/RuntimeEnabledFeatures.h" | |
12 #include "public/platform/modules/wake_lock/WebWakeLockClient.h" | |
13 | |
14 namespace blink { | |
15 | |
16 // static | |
17 bool ScreenWakeLock::keepAwake(Screen& screen) | |
18 { | |
19 ScreenWakeLock* screenWakeLock = fromScreen(screen); | |
20 if (!screenWakeLock) | |
21 return false; | |
22 | |
23 return screenWakeLock->keepAwake(); | |
24 } | |
25 | |
26 // static | |
27 void ScreenWakeLock::setKeepAwake(Screen& screen, bool keepAwake) | |
28 { | |
29 ScreenWakeLock* screenWakeLock = fromScreen(screen); | |
30 if (!screenWakeLock) | |
31 return; | |
32 | |
33 screenWakeLock->setKeepAwake(keepAwake); | |
34 } | |
35 | |
36 void ScreenWakeLock::setKeepAwake(bool keepAwake) | |
37 { | |
38 m_keepAwake = keepAwake; | |
39 notifyClient(); | |
40 } | |
41 | |
42 // static | |
43 const char* ScreenWakeLock::supplementName() | |
44 { | |
45 return "ScreenWakeLock"; | |
46 } | |
47 | |
48 // static | |
49 ScreenWakeLock* ScreenWakeLock::from(LocalFrame* frame) | |
50 { | |
51 return static_cast<ScreenWakeLock*>(WillBeHeapSupplement<LocalFrame>::from(f rame, supplementName())); | |
52 } | |
53 | |
54 // static | |
55 void ScreenWakeLock::provideTo(LocalFrame& frame, WebWakeLockClient* client) | |
56 { | |
57 ASSERT(RuntimeEnabledFeatures::wakeLockEnabled()); | |
58 WillBeHeapSupplement<LocalFrame>::provideTo( | |
59 frame, | |
60 ScreenWakeLock::supplementName(), | |
61 adoptPtrWillBeNoop(new ScreenWakeLock(frame, client))); | |
62 } | |
63 | |
64 void ScreenWakeLock::pageVisibilityChanged() | |
65 { | |
66 notifyClient(); | |
67 } | |
68 | |
69 void ScreenWakeLock::didCommitLoad(LocalFrame* committedFrame) | |
70 { | |
71 // Reset wake lock flag for this frame if it is the one being navigated | |
mlamouri (slow - plz ping)
2015/07/24 10:47:57
nit: period at the end of the sentence.
alogvinov
2015/07/24 13:36:01
Acknowledged.
| |
72 if (committedFrame == frame()) { | |
73 setKeepAwake(false); | |
74 } | |
75 } | |
76 | |
77 void ScreenWakeLock::willDetachFrameHost() | |
78 { | |
79 m_client = nullptr; | |
80 } | |
81 | |
82 DEFINE_TRACE(ScreenWakeLock) | |
83 { | |
84 WillBeHeapSupplement<LocalFrame>::trace(visitor); | |
85 PageLifecycleObserver::trace(visitor); | |
86 LocalFrameLifecycleObserver::trace(visitor); | |
87 } | |
88 | |
89 ScreenWakeLock::ScreenWakeLock(LocalFrame& frame, WebWakeLockClient* client) | |
90 : PageLifecycleObserver(frame.page()) | |
91 , LocalFrameLifecycleObserver(&frame) | |
92 , m_keepAwake(false) | |
93 , m_client(client) | |
94 { | |
95 } | |
96 | |
97 // static | |
98 ScreenWakeLock* ScreenWakeLock::fromScreen(Screen& screen) | |
99 { | |
100 return screen.frame() ? ScreenWakeLock::from(screen.frame()) : nullptr; | |
101 } | |
102 | |
103 void ScreenWakeLock::notifyClient() | |
104 { | |
105 if (!m_client) | |
106 return; | |
107 | |
108 bool visible = page() && page()->visibilityState() == PageVisibilityStateVis ible; | |
109 m_client->requestKeepScreenAwake(m_keepAwake && visible); | |
110 } | |
111 | |
112 } // namespace blink | |
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