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DragRow-GYF

时间:2016-12-08 23:18:01      阅读:223      评论:0      收藏:0      [点我收藏+]

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<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="DragRowDemo.aspx.cs" Inherits="iRightListDemo.拖动列.DragRowDemo" %>

<!doctype html>
<html>
  <head>
    <title>行拖动 by 司徒正美</title>
    <script>
        window.onload = function () {
            //绑定事件
            var addEvent = document.addEventListener ? function (el, type, callback) {
                el.addEventListener(type, callback, !1);
            } : function (el, type, callback) {
                el.attachEvent("on" + type, callback);
            }
            //判定对样式的支持
            var getStyleName = (function () {
                var prefixes = [‘‘, -ms-, -moz-, -webkit-, -khtml-, -o-];
                var reg_cap = /-([a-z])/g;
                function getStyleName(css, el) {
                    el = el || document.documentElement;
                    var style = el.style, test;
                    for (var i = 0, l = prefixes.length; i < l; i++) {
                        test = (prefixes[i] + css).replace(reg_cap, function ($0, $1) {
                            return $1.toUpperCase();
                        });
                        if (test in style) {
                            return test;
                        }
                    }
                    return null;
                }
                return getStyleName;
            })();
            var userSelect = getStyleName("user-select");

            //精确获取样式
            var getStyle = document.defaultView ? function (el, style) {
                return document.defaultView.getComputedStyle(el, null).getPropertyValue(style)
            } : function (el, style) {
                style = style.replace(/\-(\w)/g, function ($, $1) {
                    return $1.toUpperCase();
                });
                return el.currentStyle[style];
            }
            var dragManager = {
                y: 0,

                dragStart: function (e) {
                    e = e || event;
                    var handler = e.target || e.srcElement;
                    if (handler.nodeName === "TD") {
                        handler = handler.parentNode;
                        dragManager.handler = handler;
                        if (!handler.getAttribute("data-background")) {
                            handler.setAttribute("data-background", getStyle(handler, "background-color"))
                        }
                        //显示为可移动的状态
                        handler.style.backgroundColor = "#ccc";
                        handler.style.cursor = "move";
                        dragManager.y = e.clientY;
                        //★★★★★★★★★★★★★★★★★★★★
                        if (typeof userSelect === "string") {
                            return document.documentElement.style[userSelect] = "none";
                        }
                        document.unselectable = "on";
                        document.onselectstart = function () {
                            return false;
                        }
                        //★★★★★★★★★★★★★★★★★★★★
                    }
                },
                draging: function (e) {//mousemove时拖动行
                    var handler = dragManager.handler;
                    if (handler) {
                        e = e || event;

                        var y = e.clientY;
                        var down = y > dragManager.y;//是否向下移动
                        var tr = document.elementFromPoint(e.clientX, e.clientY);
                        if (tr && tr.nodeName == "TD") {
                            tr = tr.parentNode
                            dragManager.y = y;
                            if (handler !== tr) {
                                tr.parentNode.insertBefore(handler, (down ? tr.nextSibling : tr));
                            }
                        };
                    }
                },
                dragEnd: function () {
                    var handler = dragManager.handler
                    if (handler) {
                        handler.style.backgroundColor = handler.getAttribute("data-background");
                        handler.style.cursor = "default";
                        dragManager.handler = null;

                    }
                    //★★★★★★★★★★★★★★★★★★★★
                    if (typeof userSelect === "string") {
                        return document.documentElement.style[userSelect] = "text";
                    }
                    document.unselectable = "off";
                    document.onselectstart = null;
                    //★★★★★★★★★★★★★★★★★★★★
                },
                main: function (el) {
                    addEvent(el, "mousedown", dragManager.dragStart);
                    addEvent(document, "mousemove", dragManager.draging);
                    addEvent(document, "mouseup", dragManager.dragEnd);

                }
            }
            var el = document.getElementById("table");
            dragManager.main(el);

        }

    </script>
    <style>
      .table{
        width:60%;
        border: 1px solid red;
        border-collapse: collapse;
      }
      .table td{
        border: 1px solid red;
        height: 20px;
      }
      .table th{
        border: 1px solid groove;
        border-left: 1px solid groove;
        height: 20px;
        background:lightgray;
      }
    </style>
  </head>
  <body>
    <h1>行拖动 by 司徒正美</h1>
    <table  id="table" class="table">
        <thead>
              <tr>
                <th>编号</th>
                <th>顺序</th>
                <th>Js文件名</th>
              </tr>
            </thead>
      <tbody>
        <tr>
          <td>1</td>
          <td>One</td>
          <td>dom.require</td>
        </tr>
        <tr id="2" >
          <td class="2">2</td>
          <td>Two</td>
          <td>ControlJS </td>
        </tr>
        <tr id="3" >
          <td class="3">3</td>
          <td>Three</td>
          <td>HeadJS</td>
        </tr>
        <tr id="4" >
          <td class="4">4</td>
          <td>Four</td>
          <td>LAB.js</td>
        </tr>
        <tr id="5" >
          <td class="5">5</td>
          <td>Five</td>
          <td>$script.js</td>
        </tr>
        <tr id="6" >
          <td class="6">6</td>
          <td>Six</td>
          <td>NBL.js</td>
        </tr>
      </tbody>
    </table>
  </body>
</html>

 

DragRow-GYF

标签:down   script   bsp   inherits   文件名   put   ase   document   cti   

原文地址:http://www.cnblogs.com/feige/p/6146534.html

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