droppable的jQuery UI drop事件在sortable上触发 [英] jQuery UI drop event of droppable fires on sortable

问题描述

我有一个元素列表，可以将这些元素放入(现有)可排序列表中. 当将droppable元素放入sortables中时，我想修改该元素.我通过调用droppable的drop事件来做到这一点.

I have a list of elements that can be dropped into a list of (existing) sortables. When a droppable element is dropped into the sortables, I want to modify the element. I do this by calling the drop event of droppable.

但是，当可排序元素在可排序内部进行排序时，似乎也会触发此drop事件.而且，我只想在从外部插入时修改放置的元素.

But it seems this drop event is also fired when the sortable elements are sorted inside sortable. And I only want to modify the dropped element when dropped-in from the outside.

$('#sortable').sortable().droppable({
// Drop should only fire when a draggable element is dropped into the sortables,
// and NOT when the sortables themselves are sorted (without something being dragged into).
drop: function(ev, ui){
    $(ui.draggable).html('<div>TEMPLATE</div>');
}
});
$('#draggables li').draggable({
    connectToSortable: '#sortable',
    helper: 'clone',
    revert: 'invalid',
    cursor: 'move'
});​

在Fiddle上完成示例.

在可排序内部进行排序时，如何在不修改插入元素的情况下修改它们?

How can I modify a dropped-in element without modifying them when sorted inside of sortable?

推荐答案

我只是从另一个角度遇到了相同的问题.当我想要的只是drop事件时，我的sortable/droppable触发了over事件和drop事件.使用您的代码，这是我修复它的方法:

I just ran into the same issue from a different angle. My sortable/droppable was firing off an over event and a drop event when all I wanted was the drop event. Using your code, here's how I fixed it:

    $('#sortable').sortable()
    $('#draggables li').draggable({
        connectToSortable: '#sortable',
        helper: 'clone',
        revert: 'invalid',
        cursor: 'move'
    });
    ​$('#sortable').sortable('disable'); 
    // disable the *sortable* functionality while retaining the *droppable*
    $('#sortable').droppable({
    // Drop should only fire when a draggable element is dropped into the sortables,
    // and NOT when the sortables themselves are sorted (without something being dragged into).
    drop: function(ev, ui){
        $(ui.draggable).html('<div>TEMPLATE</div>');
    }
    });

唯一的缺点是sortable.update事件中的所有功能现在都必须放在droppable.drop事件中.

The only disadvantage is that all functionality within the sortable.update event must now be placed in the droppable.drop event.

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