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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/system_monitor/system_monitor.h"
#import <UIKit/UIKit.h>
namespace base {
void SystemMonitor::PlatformInit() {
NSNotificationCenter* nc = [NSNotificationCenter defaultCenter];
id foreground =
[nc addObserverForName:UIApplicationWillEnterForegroundNotification
object:nil
queue:nil
usingBlock:^(NSNotification* notification) {
ProcessPowerMessage(RESUME_EVENT);
}];
id background =
[nc addObserverForName:UIApplicationDidEnterBackgroundNotification
object:nil
queue:nil
usingBlock:^(NSNotification* notification) {
ProcessPowerMessage(SUSPEND_EVENT);
}];
notification_observers_.push_back(foreground);
notification_observers_.push_back(background);
}
void SystemMonitor::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
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