* Adium is the legal property of its developers, whose names are listed in the copyright file included * with this source distribution. * This program is free software; you can redistribute it and/or modify it under the terms of the GNU * General Public License as published by the Free Software Foundation; either version 2 of the License, * or (at your option) any later version. * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General * Public License for more details. * You should have received a copy of the GNU General Public License along with this program; if not, * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. #import "AdiumIdleManager.h" #import "AIStatusController.h" #define MACHINE_IDLE_THRESHOLD 30 //30 seconds of inactivity is considered idle #define MACHINE_ACTIVE_POLL_INTERVAL 30 //Poll every 30 seconds when the user is active #define MACHINE_IDLE_POLL_INTERVAL 1 //Poll every second when the user is idle @interface AdiumIdleManager () - (void)_setMachineIsIdle:(BOOL)inIdle; - (void)screenSaverDidStart; - (void)screenSaverDidStop; * @class AdiumIdleManager * @brief Core class to manage sending notifications when the system is idle or no longer idle * Posts AIMachineIsIdleNotification to adium's notification center when the machine becomes idle. * Posts AIMachineIsActiveNotification when the machine is no longer idle * Posts AIMachineIdleUpdateNotification periodically while idle with an NSDictionary userInfo * containing an NSNumber double value @"Duration" (a CFTimeInterval) and an NSDate @"idleSince". @implementation AdiumIdleManager if ((self = [super init])) { [self _setMachineIsIdle:NO]; [[NSDistributedNotificationCenter defaultCenter] addObserver:self selector:@selector(screenSaverDidStart) name:@"com.apple.screensaver.didstart" [[NSDistributedNotificationCenter defaultCenter] addObserver:self selector:@selector(screenSaverDidStop) name:@"com.apple.screensaver.didstop" * @brief Returns the current machine idle time * Returns the current number of seconds the machine has been idle. The machine is idle when there are no input * events from the user (such as mouse movement or keyboard input) or when the screen saver is active. * In addition to this method, the status controller sends out notifications when the machine becomes idle, * stays idle, and returns to an active state. - (CFTimeInterval)currentMachineIdle CFTimeInterval smallestIdleTime; smallestIdleTime = CGEventSourceSecondsSinceLastEventType(kCGEventSourceStateCombinedSessionState, kCGEventKeyDown); tmp = CGEventSourceSecondsSinceLastEventType(kCGEventSourceStateCombinedSessionState, kCGEventMouseMoved); if (tmp < smallestIdleTime) { tmp = CGEventSourceSecondsSinceLastEventType(kCGEventSourceStateCombinedSessionState, kCGEventFlagsChanged); if (tmp < smallestIdleTime) { * @brief Timer that checks for machine idle * This timer periodically checks the machine for inactivity. When the machine has been inactive for at least * MACHINE_IDLE_THRESHOLD seconds, a notification is broadcast. * When the machine is active, this timer is called infrequently. It's not important to notice that the user went * idle immediately, so we relax our CPU usage while waiting for an idle state to begin. * When the machine is idle, the timer is called frequently. It's important to notice immediately when the user - (void)_idleCheckTimer:(NSTimer *)inTimer CFTimeInterval currentIdle = [self currentMachineIdle]; if (currentIdle < lastSeenIdle) { /* If the machine is less idle than the last time we recorded, it means that activity has occured and the * user is no longer idle. [self _setMachineIsIdle:NO]; //Periodically broadcast a 'MachineIdleUpdate' notification [[NSNotificationCenter defaultCenter] postNotificationName:AIMachineIdleUpdateNotification userInfo:[NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithDouble:currentIdle], @"Duration", [NSDate dateWithTimeIntervalSinceNow:-currentIdle], @"idleSince", //If machine inactivity is over the threshold, the user has gone idle. if (currentIdle > MACHINE_IDLE_THRESHOLD) [self _setMachineIsIdle:YES]; lastSeenIdle = currentIdle; * @brief Sets the machine as idle or not * This internal method updates the frequency of our idle timer depending on whether the machine is considered * idle or not. It also posts the AIMachineIsIdleNotification and AIMachineIsActiveNotification notifications * based on the passed idle state - (void)_setMachineIsIdle:(BOOL)inIdle //Post the appropriate idle or active notification [[NSNotificationCenter defaultCenter] postNotificationName:AIMachineIsIdleNotification object:nil]; [[NSNotificationCenter defaultCenter] postNotificationName:AIMachineIsActiveNotification object:nil]; //Update our timer interval for either idle or active polling idleTimer = [[NSTimer scheduledTimerWithTimeInterval:(machineIsIdle ? MACHINE_IDLE_POLL_INTERVAL : MACHINE_ACTIVE_POLL_INTERVAL) selector:@selector(_idleCheckTimer:) * @brief Called by the screen saver when it starts * When the screen saver starts, we set ourself to idle. - (void)screenSaverDidStart NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; [self _setMachineIsIdle:YES]; * @brief Called by the screen saver when it starts * When the screen saver stops, we set ourself to active. - (void)screenSaverDidStop NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; [self _setMachineIsIdle:NO];
