jQuery UI可排序-仅在放置事件时排序 [英] Jquery UI sortable - sort only on drop event

问题描述

我要在拖动项目时禁用对项目的排序.只有在放置完毕后，才可以对项目进行相应的排序.

I want to disable sorting of items when item is dragged. Only after the drop has been completed the items must sort accordingly.

     $( "#sortable" ).sortable({

        tolerance: 'pointer',
        revert: 'invalid',
        forceHelperSize: true,
        scroll: true,
        forcePlaceholderSize: true,
        placeholder: 'ui-state-highlight',
        helper: 'clone',
        containment: 'parent',
        cursor: 'move',        
        distance: 5,
        opacity: 0.3,
    });

链接:jsfiddle

推荐答案

一种方法是在不同事件期间对占位符位置进行微管理.它导致还原出现问题，但是可能有某种方式可以解决此问题.行为可能不完全相同，但是再次稍作调整，它可能就在那里.无论如何，我的建议:

One way to do it would be to micromanage placeholder position during the different events. It causes a problem with revert, but there's probably a way to resolve this somehow. And the behavior might not be exactly exactly the same, but again, a little tweak and it could be there. Anyway, my suggestion:

$(function () {
    $("#sortable").sortable({

        tolerance: 'pointer',
        //revert: 'invalid',
        forceHelperSize: true,
        scroll: true,
        forcePlaceholderSize: true,
        placeholder: 'ui-state-highlight',
        helper: 'clone',
        containment: 'window',
        cursor: 'move',
        distance: 5,
        opacity: 1,
        start: function (event, ui) {
            place_prev = ui.placeholder.prev();//get position when selecting item
        },
        change: function (event, ui) {
            place_pos = ui.placeholder.index(); //each change you gather where the placeholder is going
            place_prev.after(ui.placeholder);//then you place it back where it started
        },
        beforeStop: function (event, ui) {

            $('li').eq(place_pos).after(ui.item);//before stopping you place item where it was on last change event
        },

    });

});

http://jsfiddle.net/2mxw14vv/3/

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