Tooltip: Comment why we need to use closest

diff --git a/ui/jquery.ui.tooltip.js b/ui/jquery.ui.tooltip.js
index 0f69e898f15d4b94aa4b4b3c9a29a00782e18595..2323ae243422067217601d7e4c0e7ea83fc154d1 100644 (file)
--- a/ui/jquery.ui.tooltip.js
+++ b/ui/jquery.ui.tooltip.js
@@ -127,7 +127,9 @@ $.widget( "ui.tooltip", {
 
        open: function( event ) {
                var target = $( event ? event.target : this.element )
-                               .closest( this.options.items );
+                       // we need closest here due to mouseover bubbling,
+                       // but always pointing at the same event target
+                       .closest( this.options.items );
 
                // No element to show a tooltip for
                if ( !target.length ) {