- Update

Extensions/SystemInputActivityMonitor/XMPPSystemInputActivityMonitor.h

@@ -0,0 +1,56 @@
+#import "XMPPModule.h"
+
+extern const NSTimeInterval XMPPSystemInputActivityMonitorInactivityTimeIntervalNone;
+
+#define _XMPP_SYSTEM_INPUT_ACTIVITY_MONITOR_H
+
+/**
+ * XMPPSystemInputActivityMonitor is used to keep track of system input activity.
+ * This module could be used to add features such as "auto away" when the user is inactive for 5 mins.
+**/
+
+@interface XMPPSystemInputActivityMonitor : XMPPModule
+{    
+    dispatch_source_t timer;
+	
+	BOOL active;
+	NSDate *lastActivityDate;
+	NSTimeInterval inactivityTimeInterval;
+}
+
+/**
+ * Returns wether the system is active based on the lastActivityDate and inactivityTimeInterval.
+**/
+@property (assign, getter = isActive, readonly) BOOL active;
+
+/**
+ * The last time any input activity was detected. 
+**/
+@property (assign, readonly) NSDate *lastActivityDate;
+
+/**
+ * The minimum time interval after the last input activity, that assumes the system is idle.
+ *
+ * To disable activity checking set this value to XMPPSystemInputActivityMonitorInactivityTimeIntervalNone
+ * If set to XMPPSystemInputActivityMonitorInactivityTimeIntervalNone none of delegate methods will be called.
+ * Setting this value doesn't cause the delegate methods to be called immediately.
+ *
+ * Default 300 Seconds
+**/
+@property (assign) NSTimeInterval inactivityTimeInterval;
+
+@end
+
+@protocol XMPPSystemInputActivityMonitorDelegate <NSObject>
+
+/**
+ * The system did become active after being inactive.
+**/
+- (void)xmppSystemInputActivityMonitorDidBecomeActive:(XMPPSystemInputActivityMonitor *)xmppSystemInputActivityMonitor;
+
+/**
+ * The system did become inactive after being active.
+**/
+- (void)xmppSystemInputActivityMonitorDidBecomeInactive:(XMPPSystemInputActivityMonitor *)xmppSystemInputActivityMonitor;
+
+@end

Extensions/SystemInputActivityMonitor/XMPPSystemInputActivityMonitor.m

@@ -0,0 +1,202 @@
+#import "XMPPSystemInputActivityMonitor.h"
+#import "XMPP.h"
+#import "XMPPLogging.h"
+#import "XMPPFramework.h"
+
+
+#if ! __has_feature(objc_arc)
+#warning This file must be compiled with ARC. Use -fobjc-arc flag (or convert project to ARC).
+#endif
+
+#if TARGET_OS_IPHONE
+#warning This file does not work on TARGET_OS_IPHONE.
+#endif
+
+// Log levels: off, error, warn, info, verbose
+#if DEBUG
+static const int xmppLogLevel = XMPP_LOG_LEVEL_VERBOSE;
+#else
+static const int xmppLogLevel = XMPP_LOG_LEVEL_WARN;
+#endif
+
+const NSTimeInterval XMPPSystemInputActivityMonitorInactivityTimeIntervalNone = -1;
+
+#define INACTIVITY_TIME_INTERVAL 300.0
+#define TIMER_TIME_INTERVAL 1.0
+
+@implementation XMPPSystemInputActivityMonitor
+
+- (id)init
+{
+	return [self initWithDispatchQueue:NULL];
+}
+
+- (id)initWithDispatchQueue:(dispatch_queue_t)queue
+{
+	if ((self = [super initWithDispatchQueue:queue]))
+	{
+		inactivityTimeInterval = INACTIVITY_TIME_INTERVAL;
+		active = YES;
+	}
+	return self;
+}
+
+
+- (BOOL)activate:(XMPPStream *)aXmppStream
+{
+	XMPPLogTrace();
+	
+	if ([super activate:aXmppStream])
+	{
+		XMPPLogVerbose(@"%@: Activated", THIS_FILE);
+
+#if !TARGET_OS_IPHONE
+
+		CFTimeInterval secondsSinceLastUserInteraction = CGEventSourceSecondsSinceLastEventType(kCGEventSourceStateHIDSystemState, kCGAnyInputEventType);
+		
+		NSDate *date = [NSDate dateWithTimeIntervalSinceNow:(secondsSinceLastUserInteraction * -1)];
+		[self _setLastActivityDate:date];
+
+        timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, moduleQueue);
+        
+        if (timer)
+        {
+    		dispatch_source_set_timer(timer, dispatch_walltime(NULL, 0), (TIMER_TIME_INTERVAL * NSEC_PER_SEC), 0);
+    		dispatch_source_set_event_handler(timer, ^{                
+                CFTimeInterval secondsSinceLastUserInteraction = CGEventSourceSecondsSinceLastEventType(kCGEventSourceStateHIDSystemState, kCGAnyInputEventType);
+
+				NSDate *date = [NSDate dateWithTimeIntervalSinceNow:(secondsSinceLastUserInteraction * -1)];
+				[self _setLastActivityDate:date];
+            });
+    		dispatch_resume(timer);
+        }
+#endif
+		
+		return YES;
+	}
+	
+	return NO;
+}
+
+- (void)deactivate
+{
+	XMPPLogTrace();
+    
+	if(timer)
+	{
+	    dispatch_source_cancel(timer);
+	    timer = NULL;
+	}
+
+	[super deactivate];
+}
+
+- (void)dealloc{
+	
+	if(timer)
+	{
+	    dispatch_source_cancel(timer);
+	    timer = NULL;
+	}
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+#pragma Internal
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+- (void)_setLastActivityDate:(NSDate *)flag{
+
+	dispatch_block_t block = ^{
+		lastActivityDate = flag;
+				
+		if(inactivityTimeInterval > XMPPSystemInputActivityMonitorInactivityTimeIntervalNone)
+		{
+			if(active && -[lastActivityDate timeIntervalSinceNow] > inactivityTimeInterval)
+			{
+				active = NO;
+				[multicastDelegate xmppSystemInputActivityMonitorDidBecomeInactive:self];				
+			}
+			else if(!active && -[lastActivityDate timeIntervalSinceNow] < inactivityTimeInterval)
+			{
+				active = YES;
+				[multicastDelegate xmppSystemInputActivityMonitorDidBecomeActive:self];
+			}
+			
+		}else{
+			active = YES;
+		}
+
+	};
+	
+	if (dispatch_get_specific(moduleQueueTag))
+		block();
+	else
+		dispatch_async(moduleQueue, block);
+}
+
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+#pragma Properties
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+- (BOOL)isActive
+{
+	__block BOOL result = YES;;
+	
+	dispatch_block_t block = ^{
+		result = active;
+	};
+	
+	if (dispatch_get_specific(moduleQueueTag))
+		block();
+	else
+		dispatch_sync(moduleQueue, block);
+	
+	return result;
+}
+
+- (NSDate *)lastActivityDate
+{
+	__block NSDate *result = nil;;
+
+	dispatch_block_t block = ^{
+		result = lastActivityDate;
+	};
+
+	if (dispatch_get_specific(moduleQueueTag))
+		block();
+	else
+		dispatch_sync(moduleQueue, block);
+
+	return result;
+}
+
+- (NSTimeInterval)inactivityTimeInterval
+{
+	__block NSTimeInterval result = XMPPSystemInputActivityMonitorInactivityTimeIntervalNone;
+
+	dispatch_block_t block = ^{
+		result = inactivityTimeInterval;
+	};
+
+	if (dispatch_get_specific(moduleQueueTag))
+		block();
+	else
+		dispatch_sync(moduleQueue, block);
+
+	return result;
+}
+
+- (void)setInactivityTimeInterval:(NSTimeInterval)flag
+{
+	dispatch_block_t block = ^{
+	       inactivityTimeInterval = flag;
+	};
+
+	if (dispatch_get_specific(moduleQueueTag))
+		block();
+	else
+		dispatch_async(moduleQueue, block);
+}
+
+@end