Automatically start/stop source on rule (de)registration, and some ot…

…her small stuff

Source/AudioOutputSource.m

@@ -35,10 +35,6 @@ + (void) load {
 	[[SourcesManager sharedSourcesManager] registerSourceType: self];
 }
 
-- (NSString *) name {
-	return @"Audio Output";
-}
-
 - (void) addObserver: (Rule *) rule {
 	SEL selector = NSSelectorFromString(@"sourceChangedWithOld:andNew:");
 

Source/BonjourSource.m

@@ -54,10 +54,6 @@ + (void) load {
 	[[SourcesManager sharedSourcesManager] registerSourceType: self];
 }
 
-- (NSString *) name {
-	return @"Bonjour";
-}
-
 - (void) addObserver: (Rule *) rule {
 	SEL selector = NSSelectorFromString(@"servicesChangedWithOld:andNew:");
 

Source/CallbackSource.h

@@ -11,6 +11,9 @@
 @interface CallbackSource : Source
 
 // implemented by subclasses
++ (void) load;
+- (void) addObserver: (Rule *) rule;
+- (void) removeObserver: (Rule *) rule;
 - (void) registerCallback;
 - (void) unregisterCallback;
 - (void) checkData;

Source/CallbackSource.m

@@ -29,6 +29,20 @@ - (void) stop {
 	self.running = NO;
 }
 
+#pragma mark - Subclass functions
+
++ (void) load {
+	[self doesNotRecognizeSelector: _cmd];
+}
+
+- (void) addObserver: (Rule *) rule {
+	[self doesNotRecognizeSelector: _cmd];
+}
+
+- (void) removeObserver: (Rule *) rule {
+	[self doesNotRecognizeSelector: _cmd];
+}
+
 - (void) registerCallback {
 	[self doesNotRecognizeSelector: _cmd];
 }

Source/LoopingSource.h

@@ -12,9 +12,12 @@
 	@protected NSTimeInterval m_interval;
 }
 
+@property (readwrite, assign) NSTimeInterval interval;
+
 // implemented by subclasses
++ (void) load;
+- (void) addObserver: (Rule *) rule;
+- (void) removeObserver: (Rule *) rule;
 - (void) checkData;
 
-@property (readwrite, assign) NSTimeInterval interval;
-
 @end

Source/LoopingSource.m

@@ -17,7 +17,7 @@ - (id) init {
 	if (!self)
 		return nil;
 
-	self.running = NO;
+	self.interval = 10.0;
 
 	return self;
 }
@@ -52,6 +52,20 @@ - (void) stop {
 	self.running = NO;
 }
 
+#pragma mark - Subclass functions
+
++ (void) load {
+	[self doesNotRecognizeSelector: _cmd];
+}
+
+- (void) addObserver: (Rule *) rule {
+	[self doesNotRecognizeSelector: _cmd];
+}
+
+- (void) removeObserver: (Rule *) rule {
+	[self doesNotRecognizeSelector: _cmd];
+}
+
 - (void) checkData {
 	[self doesNotRecognizeSelector: _cmd];
 }

Source/PowerSource.m

@@ -36,10 +36,6 @@ + (void) load {
 	[[SourcesManager sharedSourcesManager] registerSourceType: self];
 }
 
-- (NSString *) name {
-	return @"Power";
-}
-
 - (void) addObserver: (Rule *) rule {
 	SEL selector = NSSelectorFromString(@"statusChangedWithOld:andNew:");
 

Source/Rule.h

@@ -8,8 +8,14 @@
 
 @interface Rule : NSObject {
 	BOOL m_enabled;
+	BOOL m_match;
 }
 
-@property (readwrite, assign) BOOL enabled;
+// implemented by subclasses
+- (void) beingEnabled;
+- (void) beingDisabled;
+
+@property (readwrite, assign, nonatomic) BOOL enabled;
+@property (readwrite, assign) BOOL match;
 
 @end

Source/Rule.m

@@ -11,18 +11,40 @@
 @implementation Rule
 
 @synthesize enabled = m_enabled;
+@synthesize match = m_match;
 
 - (id) init {
 	self = [super init];
 	if (!self)
 		return nil;
 
+	self.enabled = NO;
+	self.match = NO;
+
 	return self;
 }
 
 - (void) dealloc {
-
 	[super dealloc];
 }
 
+- (void) setEnabled: (BOOL) enabled {
+	if (!m_enabled && enabled)
+		[self beingEnabled];
+	else if (m_enabled && !enabled)
+		[self beingDisabled];
+
+	m_enabled = enabled;
+}
+
+#pragma mark - Subclass functions
+
+- (void) beingEnabled {
+	[self doesNotRecognizeSelector: _cmd];
+}
+
+- (void) beingDisabled {
+	[self doesNotRecognizeSelector: _cmd];
+}
+
 @end

Source/Source.h

@@ -10,13 +10,15 @@
 
 @interface Source : NSObject {
 	@private BOOL m_running;
+	@private unsigned int m_listenersCount;
 }
 
 @property (readwrite, assign) BOOL running;
+@property (readwrite, assign, nonatomic) unsigned int listenersCount;
+@property (readonly, copy, nonatomic) NSString *name;
 
 // implemented by subclasses
 + (void) load;
-- (NSString *) name;
 - (void) addObserver: (Rule *) rule;
 - (void) removeObserver: (Rule *) rule;
 - (void) start;

Source/Source.m

@@ -12,29 +12,40 @@
 @implementation Source
 
 @synthesize running = m_running;
+@synthesize listenersCount = m_listenersCount;
 
 - (id) init {
 	self = [super init];
 	if (!self)
 		return nil;
 
 	self.running = NO;
-
+	self.listenersCount = 0;
+
 	return self;
 }
 
 - (void) dealloc {
 	[super dealloc];
 }
 
-#pragma mark - Subclass functions
-
-+ (void) load {
+- (void) setListenersCount: (unsigned int) listenersCount {
+	if (!self.running && listenersCount > 0)
+		[self start];
+	else if (self.running && listenersCount == 0)
+		[self stop];
+
+	m_listenersCount = listenersCount;
 }
 
 - (NSString *) name {
+	return NSStringFromClass([self class]);
+}
+
+#pragma mark - Subclass functions
+
++ (void) load {
 	[self doesNotRecognizeSelector: _cmd];
-	return nil;
 }
 
 - (void) addObserver: (Rule *) rule {

Source/SourcesManager.m

@@ -76,6 +76,7 @@ - (void) registerRule: (Rule *) rule toSource: (NSString *) source {
 
 	ZAssert(sourceInstance != nil, @"Unknown source: %@", source);
 	[sourceInstance addObserver: rule];
+	sourceInstance.listenersCount++;
 }
 
 - (void) unRegisterRule: (Rule *) rule fromSource: (NSString *) source {
@@ -85,7 +86,9 @@ - (void) unRegisterRule: (Rule *) rule fromSource: (NSString *) source {
 	Source *sourceInstance = [m_sources objectForKey: source];
 
 	ZAssert(sourceInstance != nil, @"Unknown source: %@", source);
+	ZAssert(sourceInstance.listenersCount > 0, @"Source has no listeners!");
 	[sourceInstance removeObserver: rule];
+	sourceInstance.listenersCount--;
 }
 
 #pragma mark - Other functions

Source/WLANSource.m

@@ -38,10 +38,6 @@ + (void) load {
 	[[SourcesManager sharedSourcesManager] registerSourceType: self];
 }
 
-- (NSString *) name {
-	return @"WLAN";
-}
-
 - (void) addObserver: (Rule *) rule {
 	SEL selector = NSSelectorFromString(@"networksChangedWithOld:andNew:");