Opened 10 months ago

Last modified 10 months ago

#15273 new bug

Using a draggable with a connected sortable causes error if sort returns false

Reported by: pvbergen Owned by:
Priority: minor Milestone: none
Component: ui.draggable Version: 1.12.1
Keywords: Cc:
Blocked by: Blocking:

Description (last modified by pvbergen)

Using a draggable with a connected sortable causes an "Uncaught TypeError: Cannot read property '0' of null" when sortable.sort returns false. I guess that the sortable destroys the dragged element and draggable wants to access it afterwards.

Example

$(".sortable").sortable({
  sort: function(e, t) {
    return false;
  }
});
$(".draggable").draggable({
  connectToSortable: ".sortable",
});

Codepen

https://codepen.io/anon/pen/XZELqm

Current workaround

  • Return true in sort and handle cancellation in stop callback.
  • Use $(t.item).trigger('mouseup'); in draggable.drag to stop drag.

Background

I want to implement cancelling of a drag operation into a sortable. Sort returning false cancels the operation on mousemove instead of waiting for mouseup and stop.

Change History (1)

comment:1 Changed 10 months ago by pvbergen

Description: modified (diff)

Completed workaround

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