jQuery UI Sortable -- How can I cancel the click event on an item that's dragged/sorted?
I have a jQuery UI Sortable list. The sortable items also have a click event attached. Is there a way to prevent the click event from firing after I drag an item?
$().ready( function () {
$('#my_sortable').sortable({
update: function() { console.log('update') },
delay: 30
});
$('#my_sortable li').click(function () {
console.log('click');
});
});
#my_sortable li {
border: 1px solid black;
display: block;
width: 100px;
height: 100px;
background-color: gray;
}
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.1/jquery-ui.min.js"></script>
<ul id="my_sortable">
<li id="item_1">A</li>
<li id="item_2">B</li>
<li id="item_3">C</li>
</ul>
Solution 1:
I had the same problem and since my sortable items contained three or four clickable items (and the number was variable) binding/unbinding them on the fly didn't really seem an option. However, by incident I specified the
helper : 'clone'
option, which behaved identically to the original sortable in terms of interface but apparently does not fire click events on the dragged item and thus solves the problem. It's as much a hack as anything else, but at least it's short and easy..
Solution 2:
If you have a reference to the click event for your li, you can unbind it in the sortable update method then use Event/one to rebind it. The event propagation can be stopped before you rebind, preventing your original click handler from firing.
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.1/jquery-ui.min.js"></script>
<script type="text/javascript" charset="utf-8">
var myClick = function () {
console.log('click');
};
$().ready( function () {
$('#my_sortable').sortable({
update: function(event, ui) {
ui.item.unbind("click");
ui.item.one("click", function (event) {
console.log("one-time-click");
event.stopImmediatePropagation();
$(this).click(myClick);
});
console.log('update') },
delay: 30
});
$('#my_sortable li').click(myClick);
});
</script>
<style type="text/css" media="screen">
#my_sortable li {
border: 1px solid black;
display: block;
width: 100px;
height: 100px;
background-color: gray;
}
</style>
</head>
<body>
<ul id="my_sortable">
<li id="item_1">A</li>
<li id="item_2">B</li>
<li id="item_3">C</li>
</ul>
</body>
</html>
Solution 3:
If you for some reason don't want to use the helper:'clone'
trick, this worked for me. It cancels the click event on an item that is dragged. jQuery adds the class ui-sortable-helper
to the dragged element.
$('.draggable').click(clickCancelonDrop);
function clickCancelonDrop(event) {
var cls = $(this).attr('class');
if (cls.match('ui-sortable-helper'))
return event.stopImmediatePropagation() || false;
}