JsPlumb - 在可拖动元素上使用时,端点不刷新位置

时间:2011-08-24 14:58:05

标签: javascript jquery jsplumb

我开始使用jsPlumb和JQuery,我想连接可拖动的元素但是如果我添加了 连接前的可拖动行为,然后连接不刷新位置。

我的代码:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
        "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
        <title></title>

        <style type="text/css">
            .window {
                background-color: white;
                border: 3px solid #346789;
                color: black;
                font-family: helvetica;
                font-size: 0.8em;
                height: 12em;
                opacity: 0.8;
                padding: 0.5em;
                position: absolute;
                width: 14em;
                z-index: 20;
            }
        </style>

        <script type="text/javascript" src="jquery.min.js"></script>
        <script type="text/javascript" src="jquery-ui.min.js"></script>
        <script type="text/javascript" src="jquery.jsPlumb-1.3.2-all-min.js"></script>
    </head>
    <body>
    <div>
        <div id="a" class="a window" style="width: 100px;height: 100px;border: solid 1px"></div>
        <div id="b" class="b window" style="width: 100px;height: 100px;border: solid 1px;"></div>
    </div>
    <script type="text/javascript">

        $(document).ready(function() {

            $(".window").draggable();

            var a = $("#a");
            var b = $("#b");
            jsPlumb.connect({
                source:a,
                target:b,
                connector:["Bezier",68],
                endpoints:[
                    ["Dot",{radius:12}],
                    ["Rectangle",{width:20,height:30}]
                ]
            });
        });
    </script>
    </body>
    </html>

2 个答案:

答案 0 :(得分:5)

我写了jsPlumb。

它不刷新的原因是它无法知道被拖动的东西。而不是调用$(“。window”)。draggable(),您需要让jsPlumb在建立连接时为您执行此操作,或者通过此方法:

jsPlumb.draggable($() “窗口”);

第一个选项不会初始化任何没有连接的窗口的拖动。第二个会。

答案 1 :(得分:1)

有几种方法可以这样做 - 请参阅jsPlumb documentation

,但通常你可以使用:

  1. 元素的ID
  2. 元素数组
  3. 或者选择器(例如前面提到的类选择器:jsPlumb.draggable($(".window"));
  4. 这是一个有效的例子:

    <!DOCTYPE html>
    <html>
    <head>
        <title>JS plumb test</title>
            <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.1/jquery.min.js"></script>
            <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.23/jquery-ui.min.js"></script>
            <script type="text/javascript" src="/include/jquery.jsPlumb-1.3.16-all-min.js"></script>
    
        <style>
            .window { 
                background-color: #EEEEEF;
                border: 1px solid #346789;
                border-radius: 0.5em;
                box-shadow: 2px 2px 19px #AAAAAA;
                color: black;
                height: 5em;
                position: absolute;
                width: 5em;
                cursor: pointer;
            }
        </style>
    
        <script>
    
            jsPlumb.ready(function () {
    
                // three ways to do this - an id, a list of ids, or a selector (note the two different types of selectors shown here...anything that is valid jquery will work of course)
    
                //jsPlumb.draggable("container0");
                //jsPlumb.draggable(["container0", "container1"]);
                jsPlumb.draggable($(".window"));
    
                //perform operation only after DOM is loaded
                var e0 = jsPlumb.addEndpoint("container0"),
                    e1 = jsPlumb.addEndpoint("container1");
    
    
    
                jsPlumb.connect({ source: e0, target: e1 });
    
    
            });
    
    
        </script>
    
    </head>
     <body >
         <div class="window" style="left: 20px" id="container0">
         </div>
    
        <div class="window"  style="left: 200px" id="container1">
        </div>
    </body>
    </html>