Merge pull request #65 from Spredfast/fix-hoverleave

Force hover leave on new mouseenter. Fixes #63 and #64.

event/hover/hover.js

@@ -110,11 +110,28 @@ steal('jquery', 'jquery/event/livehack', function ($) {
 			// now start checking mousemoves to update location
 			var delegate = ev.delegateTarget || ev.currentTarget;
 			var selector = ev.handleObj.selector;
+			var pending = $.data(delegate,"_hover"+selector);
 			// prevents another mouseenter until current has run its course
-			if ($.data(delegate, "_hover" + selector)) {
+			if(pending) {
+				// Under some  circumstances, mouseleave may never fire
+				// (e.g., the element is removed while hovered)
+				// so if we've entered another element, wait the leave time,
+				// then force it to release.
+				if(!pending.forcing) {
+					pending.forcing = true;
+					clearTimeout(pending.leaveTimer);
+					var leaveTime = pending.leaving ?
+						Math.max(0,pending.hover.leave - (new Date() - pending.leaving)) :
+						pending.hover.leave;
+					var self = this;
+
+					setTimeout(function() {
+						pending.callHoverLeave();
+						onmouseenter.call(self,ev);
+					},leaveTime);
+				}
 				return;
 			}
-			$.data(delegate, "_hover" + selector, true)
 			var loc = {
 					pageX : ev.pageX,
 					pageY : ev.pageY
@@ -158,7 +175,8 @@ steal('jquery', 'jquery/event/livehack', function ($) {
 					} else {
 						clearTimeout(leaveTimer);
 						// leave the hover after the time set in hover.leave(time)
-						leaveTimer = setTimeout(function () {
+						pending.leaving = new Date();
+						leaveTimer = pending.leaveTimer = setTimeout(function(){
 							callHoverLeave();
 						}, hover._leave)
 					}
@@ -178,6 +196,11 @@ steal('jquery', 'jquery/event/livehack', function ($) {
 				})
 				hovered = true;
 			};
+			pending = {
+				callHoverLeave: callHoverLeave,
+				hover: hover
+			};
+			$.data(delegate,"_hover"+selector, pending);
 
 			// Bind the mousemove event
 			$(enteredEl).bind("mousemove", mousemove).bind("mouseleave", mouseleave);