Update hover and periodic delay.

lib/UIKit/TUIControl.h

@@ -164,6 +164,11 @@ typedef enum TUIControlState : NSUInteger {
 // action has been finalized. The default value is NO.
 @property (nonatomic, assign, getter = isContinuous) BOOL continuous;
 
+// If a control's .continuous property value is set to YES, the
+// .periodicDelay property corresponds to the periodic delay
+// between each sent action. The default value is 75ms (0.075 seconds).
+@property (nonatomic, assign) NSTimeInterval periodicDelay;
+
 // These methods should be used to react to a state change.
 // The default method implementation does nothing, but if you
 // are subclassing a subclass of TUIControl, such as TUIButton,

lib/UIKit/TUIControl.m

@@ -55,14 +55,14 @@ @implementation TUIControl
 
 - (id)initWithFrame:(CGRect)rect {
 	if ((self = [super initWithFrame:rect])) {
+		self.periodicDelay = 0.075f;
 		self.targetActions = [NSMutableArray array];
 		self.accessibilityTraits |= TUIAccessibilityTraitButton;
 
-		[[NSNotificationCenter defaultCenter] addObserverForName:NSControlTintDidChangeNotification
-														  object:nil queue:nil
-													  usingBlock:^(NSNotification *note) {
-														  [self systemControlTintChanged];
-													  }];
+		[[NSNotificationCenter defaultCenter] addObserver:self
+												 selector:@selector(_controlTintUpdated:)
+													 name:NSControlTintDidChangeNotification
+												   object:nil];
 	}
 
 	return self;
@@ -76,6 +76,10 @@ - (void)dealloc {
 
 #pragma mark - Control State and Notifications
 
+- (void)_controlTintUpdated:(NSNotification *)note {
+	[self systemControlTintChanged];
+}
+
 - (void)systemControlTintChanged {
 	if (self.animateStateChange) {
 		[TUIView animateWithDuration:0.25f animations:^{
@@ -172,12 +176,6 @@ - (void)mouseDown:(NSEvent *)event {
 		return;
 	[super mouseDown:event];
 
-	// The mouseExited: and mouseEntered: methods are swallowed.
-	if ([self eventInside:event]) {
-		_controlFlags.hover = 0;
-		[self sendActionsForControlEvents:TUIControlEventMouseHoverEnded];
-	}
-
 	BOOL track = [self beginTrackingWithEvent:event];
 	[self applyStateChangeAnimated:self.animateStateChange block:^{
 		if (track && !_controlFlags.tracking)
@@ -225,13 +223,6 @@ - (void)mouseUp:(NSEvent *)event {
 		return;
 	[super mouseUp:event];
 
-	// The mouseExited: and mouseEntered: methods are swallowed.
-	if ([self eventInside:event]) {
-		_controlFlags.hover = 1;
-		[self sendActionsForControlEvents:TUIControlEventMouseHoverBegan];
-		[self setNeedsDisplay];
-	}
-
 	if (_controlFlags.tracking) {
 		[self endTrackingWithEvent:event];