| // Copyright 2013 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/power_monitor/power_monitor_device_source.h" |
| |
| #import <UIKit/UIKit.h> |
| |
| #import "base/power_monitor/power_monitor_features.h" |
| |
| namespace base { |
| |
| PowerStateObserver::BatteryPowerStatus |
| PowerMonitorDeviceSource::GetBatteryPowerStatus() const { |
| #if TARGET_IPHONE_SIMULATOR |
| return PowerStateObserver::BatteryPowerStatus::kExternalPower; |
| #else |
| UIDevice* currentDevice = [UIDevice currentDevice]; |
| BOOL isCurrentAppMonitoringBattery = currentDevice.isBatteryMonitoringEnabled; |
| [UIDevice currentDevice].batteryMonitoringEnabled = YES; |
| UIDeviceBatteryState batteryState = [UIDevice currentDevice].batteryState; |
| currentDevice.batteryMonitoringEnabled = isCurrentAppMonitoringBattery; |
| DCHECK(batteryState != UIDeviceBatteryStateUnknown); |
| return batteryState == UIDeviceBatteryStateUnplugged |
| ? PowerStateObserver::BatteryPowerStatus::kBatteryPower |
| : PowerStateObserver::BatteryPowerStatus::kExternalPower; |
| #endif |
| } |
| |
| void PowerMonitorDeviceSource::PlatformInit() { |
| if (FeatureList::IsEnabled(kRemoveIOSPowerEventNotifications)) { |
| return; |
| } |
| |
| NSNotificationCenter* nc = [NSNotificationCenter defaultCenter]; |
| id foreground = |
| [nc addObserverForName:UIApplicationWillEnterForegroundNotification |
| object:nil |
| queue:nil |
| usingBlock:^(NSNotification* notification) { |
| ProcessPowerEvent(RESUME_EVENT); |
| }]; |
| id background = |
| [nc addObserverForName:UIApplicationDidEnterBackgroundNotification |
| object:nil |
| queue:nil |
| usingBlock:^(NSNotification* notification) { |
| ProcessPowerEvent(SUSPEND_EVENT); |
| }]; |
| notification_observers_.push_back(foreground); |
| notification_observers_.push_back(background); |
| } |
| |
| void PowerMonitorDeviceSource::PlatformDestroy() { |
| NSNotificationCenter* nc = [NSNotificationCenter defaultCenter]; |
| for (std::vector<id>::iterator it = notification_observers_.begin(); |
| it != notification_observers_.end(); ++it) { |
| [nc removeObserver:*it]; |
| } |
| notification_observers_.clear(); |
| } |
| |
| } // namespace base |