gistfile1.txt

-(id)init;
...
        // sets up some KVO with https://github.com/nevyn/SPSuccinct/blob/master/SPSuccinct/SPDepends.h
	$depends(@"audio session", self, @"pause", (id)^{
		[selff matchIdleTimer];
	});
	
	[[UIDevice currentDevice] setBatteryMonitoringEnabled:YES];
	[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(matchIdleTimer) name:UIDeviceBatteryStateDidChangeNotification object:nil];
}

-(void)matchIdleTimer;
{
	UIDevice *dev = [UIDevice currentDevice];
	UIApplication *app = [UIApplication sharedApplication];
	BOOL isCharging = ([dev batteryState] == UIDeviceBatteryStateCharging) || ([dev batteryState] == UIDeviceBatteryStateFull);
	BOOL isPlaying = self.trackPlayerManager && !self.pause;
	
	BOOL should = isCharging && isPlaying;
	BOOL is = [app isIdleTimerDisabled];
	
	if(is != should) {
		DINFO("Transitioning idle timer to %s (%s, %s)", should?"on":"off", isCharging?"charging":"not charging", isPlaying?"playing":"not playing");
		app.idleTimerDisabled = should;
	}
}