用js实现table单元格高宽调整,兼容合并单元格(兼容IE6、7、8、FF)实例

  先上效果图:

用js实现table单元格高宽调整,兼容合并单元格(兼容IE6、7、8、FF)实例

  CSS:

  

复制代码 代码如下:

  body{margin:0px;padding:0px;-moz-user-select:none;cursor:default;}

  .tabEditDiv{position:absolute;width:15px;height:15px;cursor:pointer;}

  .seltab{position:absolute;width:15px;height:15px;cursor:pointer;background:url(images/seltab.gif) no-repeat;}

  .splitx{overflow:hidden;position:absolute;height:3px;cursor:row-resize;background:red !important;filter:Alpha(opacity=10);-moz-opacity:0.1;opacity: 0.1; }

  .splity{overflow:hidden;position:absolute;width:3px;cursor:col-resize;background:red !important;filter:Alpha(opacity=10);-moz-opacity:0.1;opacity: 0.1;}

  #tabletitle{font-weight:bold;font-size:18px;height:30px;width:800px;margin:0 auto;text-align:center;font-family:宋体;line-height:30px;}

  #tabletitle input{width:100%;border:0px;height:28px;line-height:30px;text-align:center;font-weight:bold;font-size:18px;font-family:宋体;}

  .finelinetable{border-right:1px solid #000;border-top:1px solid #000;border-collapse:collapse;font-size:13px;width:800px;margin:0 auto;}

  .finelinetable td{border-left:1px solid #000;border-bottom:1px solid #000;height:25px;}

  HTML:

  

复制代码 代码如下:

  <body>

  <div id="tabletitle">表格标题</div>

  <table id="mainTable" class="finelinetable">

  <tr>

  <td colspan="8">1</td>

  </tr>

  <tr>

  <td rowspan="3">2</td>

  <td>3</td>

  <td colspan="3">4</td>

  <td>5</td>

  <td>6</td>

  <td>7</td>

  </tr>

  <tr>

  <td>8</td>

  <td>9</td>

  <td>10</td>

  <td colspan="2">11</td>

  <td>12</td>

  <td>13</td>

  </tr>

  <tr>

  <td>14</td>

  <td colspan="3">15</td>

  <td>16</td>

  <td>17</td>

  <td>18</td>

  </tr>

  <tr>

  <td colspan="8"> </td>

  </tr>

  <tr>

  <td rowspan="3"> </td>

  <td> </td>

  <td colspan="2"> </td>

  <td> </td>

  <td colspan="3"> </td>

  </tr>

  <tr>

  <td> </td>

  <td colspan="2"> </td>

  <td> </td>

  <td colspan="3"> </td>

  </tr>

  <tr>

  <td style="height: 25px"> </td>

  <td colspan="2" style="height: 25px"> </td>

  <td style="height: 25px"> </td>

  <td colspan="3" style="height: 25px"> </td>

  </tr>

  <tr>

  <td> </td>

  <td colspan="7"> </td>

  </tr>

  <tr>

  <td colspan="2"> </td>

  <td colspan="6"> </td>

  </tr>

  <tr>

  <td colspan="2"> </td>

  <td colspan="6"> </td>

  </tr>

  <tr>

  <td colspan="2"> </td>

  <td colspan="6"> </td>

  </tr>

  </table>

  </body>

  JS:

  

复制代码 代码如下:

  //注释:获取对象.示例:$("objectId") 等同于 document.getElementById("objectId")

  if (typeof $ != "function") { var $ = function (ids) { return document.getElementById(ids) }; }

  //注释:获取坐标,parentNode最后节点.示例:absPos(object).x

  function absPos(_node, parentNode) { var x = y = 0; var node = _node; do { if (parentNode && node == parentNode) { break; } x += node.offsetLeft; y += node.offsetTop; } while (node = node.offsetParent); node = _node; return { 'x': x, 'y': y }; }

  function addEvent(object, event, func) { if (object.addEventListener) { /* W3C方法(DOM方法)下面语句中的false意思是用于冒泡阶段,若是true则是用于捕获阶段(IE不支持捕获),所以这里用false是一方面的原因是为了统一 */object.addEventListener(event, func, false); return true; } else if (object.attachEvent) { /* MSIE方法(IE方法) */object['e' + event + func] = func; object[event + func] = function () { object['e' + event + func](window.event); }; object.attachEvent('on' + event, object[event + func]); return true; } /*如两种方法都不具备则返回false */return false; }

  //注释:判断是否是对象内子节点触发的onmouseover和onmouseout.示例:e = e || event;if (isMouseLeaveOrEnter(e, obj)) {}

  function isMouseLeaveOrEnter(e, handler) { if (e.type != 'mouseout' && e.type != 'mouseover') return false; var reltg = e.relatedTarget ? e.relatedTarget : e.type == 'mouseout' ? e.toElement : e.fromElement; while (reltg && reltg != handler) reltg = reltg.parentNode; return (reltg != handler); }

  var table = $("mainTable");

  var tabEditDiv; //覆盖在table上的DIV

  var cellHide = [];//补充的rowspan,cellspan的格子

  var moveMode = "";//鼠标移动模式

  var moveArgs = []; //移动模式参数

  document.onselectstart = function(){return false;};

  addEvent(window,"resize",function(){loadTable();});

  $("tabletitle").ondblclick = function(){

  if(this.getElementsByTagName("input").length > 0){return;}

  this.innerHTML = "<input type='text' value='" + (this.innerHTML == "表格标题" ? "" : this.innerHTML) + "' />";

  var input = this.getElementsByTagName("input")[0];

  var _this = this;

  input.focus();

  input.onblur = function(){_this.innerHTML = this.value;}

  input.onkeydown = function (e) { var key = window.event ? window.event.keyCode : e.which; if (key == 13) this.blur(); };

  }

  function loadTable(){

  var tabPos = absPos(table);

  if(!tabEditDiv){

  tabEditDiv = document.createElement("div");

  document.body.appendChild(tabEditDiv);

  }

  tabEditDiv.style.cssText = "left:" + (tabPos.x - 15) + "px;top:" + (tabPos.y - 15) + "px;";

  tabEditDiv.className = "tabEditDiv";

  //全选Table按钮

  if(!seltab){

  var seltab = document.createElement("div");

  seltab.style.cssText = "width:15px;height:15px;left:" + (tabPos.x - 15) + "px;top:" + (tabPos.y - 15) + "px;";

  seltab.className = "seltab";

  seltab.onclick = function(){

  if(table.getAttribute("selected") == "1"){

  table.removeAttribute("selected");

  table.style.background = "";

  this.style.width = "15px";

  this.style.height = "15px";

  }else{

  table.setAttribute("selected","1");

  table.style.background = "#B6CAEB";

  this.style.width = (table.clientWidth + 15) + "px";

  this.style.height = (table.clientHeight + 15) + "px";

  }

  }

  document.body.appendChild(seltab);

  }

  loadTableEdit();

  } loadTable();

  function loadTableEdit(){ //加载可调整宽度及高度的div

  var tabPos = absPos(table);

  tabEditDiv.innerHTML = "";

  var cellcount = 0;

  var isadd = cellHide.length == 0;

  for(var i=0;i<table.rows.length;i++){

  for(var j=0;j<table.rows[i].cells.length;j++){

  var pos = absPos(table.rows[i].cells[j],table);

  if(!$("splitx_" + (pos.y + table.rows[i].cells[j].clientHeight))){ //加载可调整高度的div

  var split = document.createElement("div");

  split.id = "splitx_" + (pos.y + table.rows[i].cells[j].clientHeight);

  split.className = "splitx";

  split.style.cssText = "width:" + table.clientWidth + "px;left:15px;top:" + (pos.y + table.rows[i].cells[j].clientHeight - 1 + 15) + "px";

  split.onmousedown = function(){

  var index = this.getAttribute("index");

  if(index == null){ index = 0; var divs = tabEditDiv.getElementsByTagName("div"); var left = parseInt(this.id.split("_")[1]); for(var k=0;k<divs.length;k++){ if(divs[k].id.indexOf("splitx_") < 0) continue; if(parseInt(divs[k].id.split("_")[1]) < left) index++; } this.setAttribute("index",index);}else{index = parseInt(index);}

  moveMode = "cellHeight";

  moveArgs[moveArgs.length] = index;

  }

  tabEditDiv.appendChild(split);

  }

  if(j > 0){ //加载可调整宽度的div

  if(!$("splity_" + pos.x)){

  var split = document.createElement("div");

  split.id = "splity_" + pos.x;

  split.className = "splity";

  split.style.cssText = "height:" + table.clientHeight + "px;top:15px;left:" + (pos.x - 2 + 15) + "px";

  split.onmousedown = function(){

  var index = this.getAttribute("index");

  if(index == null){ index = 0; var divs = tabEditDiv.getElementsByTagName("div"); var left = parseInt(this.id.split("_")[1]); for(var k=0;k<divs.length;k++){ if(divs[k].id.indexOf("splity_") < 0) continue; if(parseInt(divs[k].id.split("_")[1]) < left) index++; } this.setAttribute("index",index);}else{index = parseInt(index);}

  moveMode = "cellWidth";

  moveArgs[moveArgs.length] = index;

  }

  tabEditDiv.appendChild(split);

  }

  }

  if(isadd){

  loadHide();

  }

  table.rows[i].cells[j].onmousedown = function(){

  //alert("x");

  }

  }

  }

  }

  function loadHide(){

  cellHide = [];

  var tempHide = [];

  for(var i=0;i<table.rows.length;i++){

  for(var j=0;j<table.rows[i].cells.length;j++){

  for(var k=1;k<table.rows[i].cells[j].rowSpan;k++){

  cellHide[cellHide.length] = [i+k,j];

  tempHide[tempHide.length] = [i+k,j];

  }

  }

  }

  for(var i=0;i<table.rows.length;i++){

  for(var j=0;j<table.rows[i].cells.length;j++){

  for(var k=1;k<table.rows[i].cells[j].colSpan;k++){

  var yc = 0;

  for(var l=0;l<tempHide.length;l++){

  if(tempHide[l][0]==i&&tempHide[l][1]<j){yc++;}

  }

  for(var l=0;l<j;l++){

  if(table.rows[i].cells[l].colSpan > 1){yc+=table.rows[i].cells[l].colSpan-1;}

  }

  cellHide[cellHide.length] = [i,j+k+yc];

  }

  }

  }

  }

  addEvent(document,"mousemove",function(e){

  e = e || window.event;

  if(moveMode == "cellWidth"){ //调整宽度

  var temp = moveArgs[0];

  var test = "";

  for(var i=0;i<table.rows.length;i++){

  var index = temp;

  for(var j=0;j<cellHide.length;j++){

  if(i==cellHide[j][0] && temp>=cellHide[j][1]){index--;}

  }

  if(!table.rows[i].cells[index] || index < 0 || table.rows[i].cells[index].colSpan > 1){continue;}

  if(e.clientX > absPos(table.rows[i].cells[index]).x)

  table.rows[i].cells[index].style.width = e.clientX - absPos(table.rows[i].cells[index]).x + "px";

  }

  loadTableEdit();

  }else if(moveMode == "cellHeight"){ //调整高度

  var index = moveArgs[0];

  for(var i=0;i<table.rows[index].cells.length;i++){

  if(table.rows[index].cells[i].rowSpan > 1){continue;}

  if(e.clientY > absPos(table.rows[index].cells[i]).y)

  table.rows[index].cells[i].style.height = e.clientY - absPos(table.rows[index].cells[i]).y + "px";

  }

  loadTableEdit();

  }

  });

  addEvent(document,"mouseup",function(e){

  moveMode = ""; moveArgs = [];

  });

  addEvent(document,"mouseout",function(e){

  e = e || event;

  if (!isMouseLeaveOrEnter(e, this)) { return; }

  moveMode = ""; moveArgs = [];

  });