adium-1.4 3485:e5fa9e2b19ae: Update tooltips when "scrollwheelin...

[commits at adium.im]

details:	http://hg.adium.im/adium-1.4/rev/e5fa9e2b19ae
revision:	3485:e5fa9e2b19ae
branch:		(none)
author:		Adrian Godoroja <robotive at me.com>
date:		Fri May 06 03:17:32 2011 +0300

Update tooltips when "scrollwheeling" through the contact list. Refs #3480
Transplanted from 1.5hg [http://hg.adium.im/adium/rev/59f707927de3]

diffs (74 lines):

diff -r 7eb8dc9943b3 -r e5fa9e2b19ae Frameworks/AIUtilities Framework/Source/AISmoothTooltipTracker.h
--- a/Frameworks/AIUtilities Framework/Source/AISmoothTooltipTracker.h	Thu May 05 16:53:07 2011 +0200
+++ b/Frameworks/AIUtilities Framework/Source/AISmoothTooltipTracker.h	Fri May 06 03:17:32 2011 +0300
@@ -51,6 +51,8 @@
 	NSPoint				tooltipLocation;				//Last tooltip location we told our delegate about
     NSTrackingRectTag	tooltipTrackingTag;				//Tag for our tracking rect
     int 				tooltipCount;					//Used to determine how long before a tooltip appears
+	
+	BOOL				mouseIsScrolling;
 }
 
 /*!
diff -r 7eb8dc9943b3 -r e5fa9e2b19ae Frameworks/AIUtilities Framework/Source/AISmoothTooltipTracker.m
--- a/Frameworks/AIUtilities Framework/Source/AISmoothTooltipTracker.m	Thu May 05 16:53:07 2011 +0200
+++ b/Frameworks/AIUtilities Framework/Source/AISmoothTooltipTracker.m	Fri May 06 03:17:32 2011 +0300
@@ -26,6 +26,8 @@
 - (void)_startTrackingMouse;
 - (void)_stopTrackingMouse;
 - (void)_hideTooltip;
+
+- (void)contentViewBoundsDidChange;
 @end
 
 @interface NSWindow (SpacesDeterminationHackery)
@@ -46,6 +48,7 @@
 		delegate = inDelegate;
 		tooltipTrackingTag = -1;
 		tooltipLocation = NSZeroPoint;
+		mouseIsScrolling = NO;
 
 		//Reset cursor tracking when the view's frame changes
 		[[NSNotificationCenter defaultCenter] addObserver:self
@@ -56,6 +59,14 @@
 												 selector:@selector(resetCursorTracking)
 													 name:AIWindowToolbarDidToggleVisibility
 												   object:[view window]];
+		
+		// Track contentView bounds changes (useful to detect scrolling)
+		if ([view isKindOfClass:[NSScrollView class]]) {
+			[[NSNotificationCenter defaultCenter] addObserver:self
+													 selector:@selector(contentViewBoundsDidChange)
+														 name:NSViewBoundsDidChangeNotification
+													   object:[(NSScrollView *)view contentView]];
+		}
 
 		[self installCursorRect];
 	}
@@ -200,6 +211,12 @@
 	[self _stopTrackingMouse];
 }
 
+// Handle scrolling
+- (void)contentViewBoundsDidChange
+{
+	mouseIsScrolling = YES;
+}
+
 //Start tracking mouse movement
 - (void)_startTrackingMouse
 {
@@ -269,9 +286,12 @@
 		//the mouse is left still tooltipCount will eventually grow greater than TOOL_TIP_DELAY, and we will begin
 		//displaying the tooltips
 		if (tooltipCount > TOOL_TIP_DELAY) {
-			if (!NSEqualPoints(tooltipLocation, mouseLocation)) {
+			if (!NSEqualPoints(tooltipLocation, mouseLocation) || mouseIsScrolling) {
 				[delegate showTooltipAtPoint:mouseLocation];
 				tooltipLocation = mouseLocation;
+				
+				// Reset scrolling info
+				mouseIsScrolling = NO;
 			}
 			
 		} else {