1 // Copyright (c) 2012 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 "chrome/browser/extensions/api/system_private/system_private_api.h"
6
7 #include "base/prefs/pref_service.h"
8 #include "base/values.h"
9 #include "chrome/browser/browser_process.h"
10 #include "chrome/browser/extensions/event_router_forwarder.h"
11 #include "chrome/browser/profiles/profile.h"
12 #include "chrome/common/extensions/api/system_private.h"
13 #include "chrome/common/pref_names.h"
14 #include "google_apis/google_api_keys.h"
15
16 #if defined(OS_CHROMEOS)
17 #include "chromeos/dbus/dbus_thread_manager.h"
18 #include "chromeos/dbus/update_engine_client.h"
19 #else
20 #include "chrome/browser/upgrade_detector.h"
21 #endif
22
23 namespace {
24
25 // Maps prefs::kIncognitoModeAvailability values (0 = enabled, ...)
26 // to strings exposed to extensions.
27 const char* kIncognitoModeAvailabilityStrings[] = {
28 "enabled",
29 "disabled",
30 "forced"
31 };
32
33 // Property keys.
34 const char kBrightnessKey[] = "brightness";
35 const char kDownloadProgressKey[] = "downloadProgress";
36 const char kIsVolumeMutedKey[] = "isVolumeMuted";
37 const char kStateKey[] = "state";
38 const char kUserInitiatedKey[] = "userInitiated";
39 const char kVolumeKey[] = "volume";
40
41 // System update states.
42 const char kNotAvailableState[] = "NotAvailable";
43 const char kNeedRestartState[] = "NeedRestart";
44
45 #if defined(OS_CHROMEOS)
46 const char kUpdatingState[] = "Updating";
47 #endif // defined(OS_CHROMEOS)
48
49 // Dispatches an extension event with |argument|
DispatchEvent(const std::string & event_name,base::Value * argument)50 void DispatchEvent(const std::string& event_name, base::Value* argument) {
51 scoped_ptr<base::ListValue> list_args(new base::ListValue());
52 if (argument) {
53 list_args->Append(argument);
54 }
55 g_browser_process->extension_event_router_forwarder()->
56 BroadcastEventToRenderers(event_name, list_args.Pass(), GURL());
57 }
58
59 } // namespace
60
61 namespace extensions {
62
63 namespace system_private = api::system_private;
64
RunSync()65 bool SystemPrivateGetIncognitoModeAvailabilityFunction::RunSync() {
66 PrefService* prefs = GetProfile()->GetPrefs();
67 int value = prefs->GetInteger(prefs::kIncognitoModeAvailability);
68 EXTENSION_FUNCTION_VALIDATE(
69 value >= 0 &&
70 value < static_cast<int>(arraysize(kIncognitoModeAvailabilityStrings)));
71 SetResult(new base::StringValue(kIncognitoModeAvailabilityStrings[value]));
72 return true;
73 }
74
RunSync()75 bool SystemPrivateGetUpdateStatusFunction::RunSync() {
76 std::string state;
77 double download_progress = 0;
78 #if defined(OS_CHROMEOS)
79 // With UpdateEngineClient, we can provide more detailed information about
80 // system updates on ChromeOS.
81 const chromeos::UpdateEngineClient::Status status =
82 chromeos::DBusThreadManager::Get()->GetUpdateEngineClient()->
83 GetLastStatus();
84 // |download_progress| is set to 1 after download finishes
85 // (i.e. verify, finalize and need-reboot phase) to indicate the progress
86 // even though |status.download_progress| is 0 in these phases.
87 switch (status.status) {
88 case chromeos::UpdateEngineClient::UPDATE_STATUS_ERROR:
89 state = kNotAvailableState;
90 break;
91 case chromeos::UpdateEngineClient::UPDATE_STATUS_IDLE:
92 state = kNotAvailableState;
93 break;
94 case chromeos::UpdateEngineClient::UPDATE_STATUS_CHECKING_FOR_UPDATE:
95 state = kNotAvailableState;
96 break;
97 case chromeos::UpdateEngineClient::UPDATE_STATUS_UPDATE_AVAILABLE:
98 state = kUpdatingState;
99 break;
100 case chromeos::UpdateEngineClient::UPDATE_STATUS_DOWNLOADING:
101 state = kUpdatingState;
102 download_progress = status.download_progress;
103 break;
104 case chromeos::UpdateEngineClient::UPDATE_STATUS_VERIFYING:
105 state = kUpdatingState;
106 download_progress = 1;
107 break;
108 case chromeos::UpdateEngineClient::UPDATE_STATUS_FINALIZING:
109 state = kUpdatingState;
110 download_progress = 1;
111 break;
112 case chromeos::UpdateEngineClient::UPDATE_STATUS_UPDATED_NEED_REBOOT:
113 state = kNeedRestartState;
114 download_progress = 1;
115 break;
116 case chromeos::UpdateEngineClient::UPDATE_STATUS_REPORTING_ERROR_EVENT:
117 case chromeos::UpdateEngineClient::UPDATE_STATUS_ATTEMPTING_ROLLBACK:
118 state = kNotAvailableState;
119 break;
120 }
121 #else
122 if (UpgradeDetector::GetInstance()->notify_upgrade()) {
123 state = kNeedRestartState;
124 download_progress = 1;
125 } else {
126 state = kNotAvailableState;
127 }
128 #endif
129 base::DictionaryValue* dict = new base::DictionaryValue();
130 dict->SetString(kStateKey, state);
131 dict->SetDouble(kDownloadProgressKey, download_progress);
132 SetResult(dict);
133
134 return true;
135 }
136
RunSync()137 bool SystemPrivateGetApiKeyFunction::RunSync() {
138 SetResult(new base::StringValue(google_apis::GetAPIKey()));
139 return true;
140 }
141
DispatchVolumeChangedEvent(double volume,bool is_volume_muted)142 void DispatchVolumeChangedEvent(double volume, bool is_volume_muted) {
143 base::DictionaryValue* dict = new base::DictionaryValue();
144 dict->SetDouble(kVolumeKey, volume);
145 dict->SetBoolean(kIsVolumeMutedKey, is_volume_muted);
146 DispatchEvent(system_private::OnVolumeChanged::kEventName, dict);
147 }
148
DispatchBrightnessChangedEvent(int brightness,bool user_initiated)149 void DispatchBrightnessChangedEvent(int brightness, bool user_initiated) {
150 base::DictionaryValue* dict = new base::DictionaryValue();
151 dict->SetInteger(kBrightnessKey, brightness);
152 dict->SetBoolean(kUserInitiatedKey, user_initiated);
153 DispatchEvent(system_private::OnBrightnessChanged::kEventName, dict);
154 }
155
DispatchScreenUnlockedEvent()156 void DispatchScreenUnlockedEvent() {
157 DispatchEvent(system_private::OnScreenUnlocked::kEventName, NULL);
158 }
159
DispatchWokeUpEvent()160 void DispatchWokeUpEvent() {
161 DispatchEvent(system_private::OnWokeUp::kEventName, NULL);
162 }
163
164 } // namespace extensions
165