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Tweaked the syntax of withinElement a bit.

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jeresig 2009-12-21 18:06:23 -05:00
parent e083d15fc7
commit 36c99dc0c7
1 changed files with 11 additions and 4 deletions
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15
src/event.js
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@ -532,23 +532,30 @@ jQuery.Event.prototype = {
isPropagationStopped: returnFalse, isPropagationStopped: returnFalse,
isImmediatePropagationStopped: returnFalse isImmediatePropagationStopped: returnFalse
}; };
// Checks if an event happened on an element within another element // Checks if an event happened on an element within another element
// Used in jQuery.event.special.mouseenter and mouseleave handlers // Used in jQuery.event.special.mouseenter and mouseleave handlers
var withinElement = function( event ) { var withinElement = function( event ) {
// Check if mouse(over|out) are still within the same parent element // Check if mouse(over|out) are still within the same parent element
var parent = event.relatedTarget; var parent = event.relatedTarget;
// Traverse up the tree // Traverse up the tree
while ( parent && parent != this ) { while ( parent && parent !== this ) {
// Firefox sometimes assigns relatedTarget a XUL element // Firefox sometimes assigns relatedTarget a XUL element
// which we cannot access the parentNode property of // which we cannot access the parentNode property of
try { parent = parent.parentNode; } try {
parent = parent.parentNode;
// assuming we've left the element since we most likely mousedover a xul element // assuming we've left the element since we most likely mousedover a xul element
catch(e) { break; } } catch(e) {
break;
}
} }
if ( parent != this ) { if ( parent !== this ) {
// set the correct event type // set the correct event type
event.type = event.data; event.type = event.data;
// handle event if we actually just moused on to a non sub-element // handle event if we actually just moused on to a non sub-element
jQuery.event.handle.apply( this, arguments ); jQuery.event.handle.apply( this, arguments );
} }