拖放位置丢弃jquery

时间:2015-01-30 11:03:57

标签: javascript jquery html jquery-ui drag-and-drop

我在jqxtree画了一棵树。我必须拖动树元素并绘制一个小方框div并附加到div processFlowId

dragAndDrop代码

$( ".dragItem" ).draggable({ revert: true,
         revertDuration: 0,
         cancel : 'span',
         refreshPositions: true 
        //,containment: "parent"
         ,helper: 'clone'});
$('#jqxTree').jqxTree({
       height: '200px',
       width: '300px',
       theme: 'energyblue',
       allowDrag: true,
       allowDrop: false
   });
 $(".dragItem").css({"position": ""});
var itemFlag =0;
$("#acceptDrop").droppable({
          accept: ".dragItem",
          activeClass: "drop-active",
          hoverClass: "drop-hover",
          drop: function (event, ui) {
              var itemid = ui.draggable.attr("id");
              itemFlag++
              drawAttrList(itemid + "_" + itemFlag,itemid,"processElement",ui);
          }
});
function drawAttrList(mainDivId, droppedToolId, dataMiningType,ui) {
    var html = '<div class="mouseHover" id="'+ mainDivId+ '"'
     + 'style="width:200px;"'+'><div class="widget-box w"><div class="widget-header" title="'+ mainDivId+ '">';
html += '<h4 class="lighter smaller" onclick="openProperties(\''
            + mainDivId + '\',\'' + dataMiningType
            + '\')"><i class="icon-random blue"></i>' + droppedToolId + '</h4>';
    html += '</div>';

    html += '<div  class="widget-body" ><div class="widget-main" ><div class="row-fluid">';

    html += '<div id="cart_toolbarList " class="drags"><div id="'+itemFlag+ droppedToolId + 'List_items" style="height:100px">';
    html += '<ul  class="item-list ui-sortable ' + droppedToolId + 'List'+ itemFlag + '" style="height:100%;border-style: dashed;border-width: 1px;border-color: silver;">';
    html += '</ul></div></div></div></div></div></div></div>';
    $("#" + mainDivId).draggable({
        revertDuration : 0,
        refreshPositions : true,
        revert: true,
        helper : 'clone'
    });
    $("#processFlowId").append(html);
}

请参考我的 Jsfiddle

问题

我需要拖动李并在我掉落的位置画画。现在它没有被绘制在我们放弃的位置。

有任何建议要做到这一点! 在此先感谢!

1 个答案:

答案 0 :(得分:0)

为了获得放置位置,我们使用ui.position,它将相对于offset元素给出“top,left”。即,

var top = ui.position.top; // gives the top postion
var left = ui.position.left; // gives the left postion

现在,在style属性的帮助下,将这些x和y坐标附加到附加到div id“processFlowId”的小方框div中。如,

<div class="mouseHover" id="'+ mainDivId+ '"'+ 'style="width:200px;position:absolute; top: '+ top+ 'px; left: '+ left+ 'px;"'>

查看更新后的fiddle