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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "extensions/browser/api/power/power_api.h" | 5 #include "extensions/browser/api/power/power_api.h" |
6 | 6 |
7 #include "extensions/browser/api/power/power_api_manager.h" | 7 #include "base/bind.h" |
8 #include "base/lazy_instance.h" | |
9 #include "extensions/browser/extension_registry.h" | |
8 #include "extensions/common/api/power.h" | 10 #include "extensions/common/api/power.h" |
11 #include "extensions/common/extension.h" | |
9 | 12 |
10 namespace extensions { | 13 namespace extensions { |
11 | 14 |
12 bool PowerRequestKeepAwakeFunction::RunSync() { | 15 bool PowerRequestKeepAwakeFunction::RunSync() { |
13 scoped_ptr<core_api::power::RequestKeepAwake::Params> params( | 16 scoped_ptr<core_api::power::RequestKeepAwake::Params> params( |
14 core_api::power::RequestKeepAwake::Params::Create(*args_)); | 17 core_api::power::RequestKeepAwake::Params::Create(*args_)); |
15 EXTENSION_FUNCTION_VALIDATE(params); | 18 EXTENSION_FUNCTION_VALIDATE(params); |
16 EXTENSION_FUNCTION_VALIDATE(params->level != core_api::power::LEVEL_NONE); | 19 EXTENSION_FUNCTION_VALIDATE(params->level != core_api::power::LEVEL_NONE); |
17 PowerApiManager::Get(browser_context())->AddRequest( | 20 PowerApi::Get(browser_context())->AddRequest(extension_id(), params->level); |
18 extension_id(), params->level); | |
19 return true; | 21 return true; |
20 } | 22 } |
21 | 23 |
22 bool PowerReleaseKeepAwakeFunction::RunSync() { | 24 bool PowerReleaseKeepAwakeFunction::RunSync() { |
23 PowerApiManager::Get(browser_context())->RemoveRequest(extension_id()); | 25 PowerApi::Get(browser_context())->RemoveRequest(extension_id()); |
24 return true; | 26 return true; |
25 } | 27 } |
26 | 28 |
29 namespace { | |
Daniel Erat
2015/02/27 13:58:39
this anonymous namespace should be moved just afte
zhuoyu.qian
2015/02/28 01:46:42
Done.
| |
30 | |
31 const char kPowerSaveBlockerDescription[] = "extension"; | |
32 | |
33 content::PowerSaveBlocker::PowerSaveBlockerType LevelToPowerSaveBlockerType( | |
34 core_api::power::Level level) { | |
35 switch (level) { | |
36 case core_api::power::LEVEL_SYSTEM: | |
37 return content::PowerSaveBlocker::kPowerSaveBlockPreventAppSuspension; | |
38 case core_api::power::LEVEL_DISPLAY: // fallthrough | |
39 case core_api::power::LEVEL_NONE: | |
40 return content::PowerSaveBlocker::kPowerSaveBlockPreventDisplaySleep; | |
41 } | |
42 NOTREACHED() << "Unhandled level " << level; | |
43 return content::PowerSaveBlocker::kPowerSaveBlockPreventDisplaySleep; | |
44 } | |
45 | |
46 base::LazyInstance<BrowserContextKeyedAPIFactory<PowerApi>> g_factory = | |
47 LAZY_INSTANCE_INITIALIZER; | |
48 | |
49 } // namespace | |
50 | |
51 // static | |
52 PowerApi* PowerApi::Get(content::BrowserContext* context) { | |
53 return BrowserContextKeyedAPIFactory<PowerApi>::Get(context); | |
54 } | |
55 | |
56 // static | |
57 BrowserContextKeyedAPIFactory<PowerApi>* PowerApi::GetFactoryInstance() { | |
58 return g_factory.Pointer(); | |
59 } | |
60 | |
61 void PowerApi::AddRequest(const std::string& extension_id, | |
62 core_api::power::Level level) { | |
63 extension_levels_[extension_id] = level; | |
64 UpdatePowerSaveBlocker(); | |
65 } | |
66 | |
67 void PowerApi::RemoveRequest(const std::string& extension_id) { | |
68 extension_levels_.erase(extension_id); | |
69 UpdatePowerSaveBlocker(); | |
70 } | |
71 | |
72 void PowerApi::SetCreateBlockerFunctionForTesting( | |
73 CreateBlockerFunction function) { | |
74 create_blocker_function_ = | |
75 !function.is_null() ? function | |
76 : base::Bind(&content::PowerSaveBlocker::Create); | |
77 } | |
78 | |
79 void PowerApi::OnExtensionUnloaded(content::BrowserContext* browser_context, | |
80 const Extension* extension, | |
81 UnloadedExtensionInfo::Reason reason) { | |
82 RemoveRequest(extension->id()); | |
83 UpdatePowerSaveBlocker(); | |
84 } | |
85 | |
86 PowerApi::PowerApi(content::BrowserContext* context) | |
87 : browser_context_(context), | |
88 create_blocker_function_(base::Bind(&content::PowerSaveBlocker::Create)), | |
89 current_level_(core_api::power::LEVEL_SYSTEM) { | |
90 ExtensionRegistry::Get(browser_context_)->AddObserver(this); | |
91 } | |
92 | |
93 PowerApi::~PowerApi() { | |
94 } | |
95 | |
96 void PowerApi::UpdatePowerSaveBlocker() { | |
97 if (extension_levels_.empty()) { | |
98 power_save_blocker_.reset(); | |
99 return; | |
100 } | |
101 | |
102 core_api::power::Level new_level = core_api::power::LEVEL_SYSTEM; | |
103 for (ExtensionLevelMap::const_iterator it = extension_levels_.begin(); | |
104 it != extension_levels_.end(); ++it) { | |
105 if (it->second == core_api::power::LEVEL_DISPLAY) | |
106 new_level = it->second; | |
107 } | |
108 | |
109 // If the level changed and we need to create a new blocker, do a swap | |
110 // to ensure that there isn't a brief period where power management is | |
111 // unblocked. | |
112 if (!power_save_blocker_ || new_level != current_level_) { | |
113 content::PowerSaveBlocker::PowerSaveBlockerType type = | |
114 LevelToPowerSaveBlockerType(new_level); | |
115 scoped_ptr<content::PowerSaveBlocker> new_blocker( | |
116 create_blocker_function_.Run(type, | |
117 content::PowerSaveBlocker::kReasonOther, | |
118 kPowerSaveBlockerDescription)); | |
119 power_save_blocker_.swap(new_blocker); | |
120 current_level_ = new_level; | |
121 } | |
122 } | |
123 | |
124 void PowerApi::Shutdown() { | |
125 // Unregister here rather than in the d'tor; otherwise this call will recreate | |
126 // the already-deleted ExtensionRegistry. | |
127 ExtensionRegistry::Get(browser_context_)->RemoveObserver(this); | |
128 power_save_blocker_.reset(); | |
129 } | |
130 | |
27 } // namespace extensions | 131 } // namespace extensions |
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