修改版的丰富交互表格RichTable.js

修改自blueidea上的windy2000提供的powertable.js,具体见:
http://www.blueidea.com/bbs/archivecontent.asp?id=697036...
修改的几个地方:
1、基于prototype.js进行了改写。
2、由外部传入需要增加丰富交互的表格的ID。
3、修正了列排序造成的表格行颜色的混乱。(如经常能见到的隔行颜色不同的表格,在排序后会有两行颜色在一起的现象出现)
4、修正了拖拉表头的功能。(之前的版本在页面中有通过js动态增加的元素的时候会出现拖拉不正确的现象,要么要拖到表头的上面,要么要拖到表头的下面)
5、修正了当css是通过js动态添加到head元素中的情况下的bug。(之前的版本会出现这个时候在点击行或拖拉行时颜色错乱的现象)
由于我不需要行上下移动以及增加行、删除行的功能,便把这些从代码里删除了。
最终形成的js如下:
/*
 * ============================================================
 * Copyright (C) 2006 
 * ------------------------------------------------------------
 * CVS $Revision: 1.4 $
 * CVS $Author: BlueDavy $
 * ------------------------------------------------------------
 * 交互丰富的表格
 * ============================================================
 
*/

 
var RichTable=Class.create();
 
 RichTable.prototype
={
 
     
// 构造器
     initialize:function(tableid){
         
this.tabley=null;
         
this.cur_row=null;
        
this.cur_col=null;
        
this.cur_cell=null;
        
this.sort_col=null;
        
this.dragStart=false;
        
this.dragColStart=null;
        
this.dragColEnd=null;
        
this.sort_col=null;
        
this.show_col=false;
        
this.hasreadref=false;
        
this.act_bgc="#BEC5DE";
        
this.act_fc="black";
        
this.cur_bgc="#ccffcc";
        
this.cur_fc="black";
        
this.charMode=1;
        
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this.drag.style.position="absolute";
        
this.drag.style.cursor="hand";
        
this.drag.style.border="1 solid black";
        
this.drag.style.display="none";
        
this.drag.style.zIndex="999";
        document.body.insertBefore(
this.drag);
        
        document.onmouseup
=this.drag_end.bind(this);
        document.onselectstart
=function(){return false;};
        document.onclick
=this.documentclick.bind(this);
     }
,
     
     documentclick:
function(){
         window.status 
= "";
        
this.clear_color();
        
this.cur_row  = null;
        
this.cur_col  = null;
        
this.cur_cell = null;
     }
,
     
    
// 读取table的信息,并替换其中相关的函数
    readdef:function(){
        
for(var i=0;i<this.tableobject.rows.length;i++){
            
for(var j=0;j<this.tableobject.rows[i].cells.length;j++){
                
with(this.tableobject.rows[i]){
                    cells[j].oBgc 
= cells[j].currentStyle.backgroundColor;
                    cells[j].oFc  
= cells[j].currentStyle.color;
                    
if(i==0){
                        cells[j].onmousedown
=this.drag_start.bind(this);
                        cells[j].onmouseup
=this.drag_end.bind(this);
                    }

                }

            }

        }

        
this.hasreadref=true;
    }
,
    
    get_Element:
function(the_ele,the_tag){
        the_tag 
= the_tag.toLowerCase();
        
if(the_ele.tagName.toLowerCase()==the_tag)return the_ele;
        
while(the_ele=the_ele.offsetParent){
            
if(the_ele.tagName.toLowerCase()==the_tag)return the_ele;
        }

        
return(null);
    }
,

    dragmousemove:
function(){
        
if(!this.hasreadref){
             
this.readdef();
         }

        
this.drag.style.display="";
        
this.drag.style.top=event.y - this.drag.offsetHeight/2;
        
this.drag.style.left=event.x - this.drag.offsetWidth/2;
        
for(var i=0;i<this.tableobject.rows[0].cells.length;i++){
            
with(this.tableobject.rows[0].cells[i]){
                
if((event.y>this.tabley+parseInt(document.body.currentStyle.marginTop) && event.y<this.tabley+offsetHeight+parseInt(document.body.currentStyle.marginTop)) && (event.x>offsetLeft+parseInt(document.body.currentStyle.marginLeft) && event.x<offsetLeft+offsetWidth+parseInt(document.body.currentStyle.marginLeft))){
                    runtimeStyle.backgroundColor
=this.act_bgc;
                    
this.dragColEnd=cellIndex;
                }

                
else{
                    runtimeStyle.backgroundColor
="";
                }

            }

        }

        
if(!(event.y>this.tabley+parseInt(document.body.currentStyle.marginTop) && event.y<this.tabley+this.tableobject.rows[0].offsetHeight+parseInt(document.body.currentStyle.marginTop))) this.dragColEnd=null;
    }
,

    drag_start:
function(){
        
if(!this.hasreadref){
             
this.readdef();
         }

        
var the_td    = this.get_Element(event.srcElement,"td");
        
if(the_td==nullreturn;
        
this.dragStart=true;
        
this.dragColStart=the_td.cellIndex;
        
this.drag.style.width=the_td.offsetWidth;
        
this.drag.style.height=the_td.offsetHeight;
        
this.tabley=event.y-this.tableobject.rows[0].offsetHeight;
        document.onmousemove
=this.dragmousemove.bind(this);
        
this.drag.innerHTML=the_td.innerHTML;
        
this.drag.style.backgroundColor=the_td.oBgc;
        
this.drag.style.color=the_td.oFc;
    }
,

    drag_end:
function(){
        
if(!this.hasreadref){
             
this.readdef();
         }

        
this.dragStart = false;
        
this.drag.style.display="none";
        
this.drag.innerHTML = "";
        
this.drag.style.width = 0;
        
this.drag.style.height = 0;
        
for(var i=0;i<this.tableobject.rows[0].cells.length;i++){
            
this.tableobject.rows[0].cells[i].runtimeStyle.backgroundColor="";
        }

        
if(this.dragColStart!=null && this.dragColEnd!=null && this.dragColStart!=this.dragColEnd){
            
this.change_col(this.tableobject,this.dragColStart,this.dragColEnd);
            
if(this.dragColStart==this.sort_col)this.sort_col=this.dragColEnd;
            
else if(this.dragColEnd==this.sort_col)this.sort_col=this.dragColStart;
            document.onclick();
        }

        
this.dragColStart = null;
        
this.dragColEnd = null;
        document.onmousemove
=null;
    }
,
    
    clear_color:
function(){
        
if(!this.hasreadref){
             
this.readdef();
         }

        the_table
=this.tableobject;
        
if(this.cur_col!=null){
            
for(i=0;i<the_table.rows.length;i++){
                
with(the_table.rows[i].cells[this.cur_col]){
                    style.backgroundColor
=oBgc;
                    style.color
=oFc;
                }

            }

        }

        
if(this.cur_row!=null){
            
for(i=0;i<the_table.rows[this.cur_row].cells.length;i++){
                
with(the_table.rows[this.cur_row].cells[i]){
                    style.backgroundColor
=oBgc;
                    style.color
=oFc;
                }

            }

        }

        
if(this.cur_cell!=null){
            
this.cur_cell.children[0].contentEditable = false;
            
with(this.cur_cell.children[0].runtimeStyle){
                borderLeft
=borderTop="";
                borderRight
=borderBottom="";
                backgroundColor
="";
                paddingLeft
="";
                textAlign
="";
            }

        }

    }
,
    
    change_row:
function(the_tab,line1,line2){
        the_tab.rows[line1].swapNode(the_tab.rows[line2])
    }
,

    change_col:
function(the_tab,line1,line2){
        
for(var i=0;i<the_tab.rows.length;i++){
            the_tab.rows[i].cells[line1].swapNode(the_tab.rows[i].cells[line2]);
        }

    }
,
    
    
// 鼠标移过表格
    overIt:function(){
        
if(this.dragStart)return;
        
var the_obj = event.srcElement;
        
var i = 0;
        
if(the_obj.tagName.toLowerCase() != "table"){
            
var the_td=this.get_Element(the_obj,"td");
            
if(the_td==nullreturn;
            
var the_tr=the_td.parentElement;
            
var the_table=this.get_Element(the_td,"table");
            
if(the_tr.rowIndex!=0){
                
for(i=0;i<the_tr.cells.length;i++){
                    
with(the_tr.cells[i]){
                        runtimeStyle.backgroundColor
=this.act_bgc;
                        runtimeStyle.color
=this.act_fc;                    
                    }

                }

            }

            
else{
                
for(i=1;i<the_table.rows.length;i++){
                    
with(the_table.rows[i].cells(the_td.cellIndex)){
                        runtimeStyle.backgroundColor
=this.act_bgc;
                        runtimeStyle.color
=this.act_fc;
                    }

                }

                
if(the_td.mode==undefined)the_td.mode = false;
                the_td.style.cursor
=the_td.mode?"n-resize":"s-resize";
            }

        }

    }
,
    
    
// 鼠标移出表格
    outIt:function(){
        
var the_obj = event.srcElement;
        
var i=0;
        
if(the_obj.tagName.toLowerCase() != "table"){
            
var the_td=this.get_Element(the_obj,"td");
            
if(the_td==nullreturn;
            
var the_tr=the_td.parentElement;
            
var the_table=this.get_Element(the_td,"table");
            
if(the_tr.rowIndex!=0){
                
for(i=0;i<the_tr.cells.length;i++){
                    
with(the_tr.cells[i]){
                        runtimeStyle.backgroundColor
='';
                        runtimeStyle.color
='';                
                    }

                }

            }
else{
                
var the_table=the_tr.parentElement.parentElement;
                
for(i=0;i<the_table.rows.length;i++){
                    
with(the_table.rows[i].cells(the_td.cellIndex)){
                        runtimeStyle.backgroundColor
='';
                        runtimeStyle.color
='';
                    }

                }

            }

        }

    }
,
    
    
// 按拼音排序
    judge_CN:function(char1,char2,mode){
        
var charSet=this.charPYStr;
        
for(var n=0;n<(char1.length>char2.length?char1.length:char2.length);n++){
            
if(char1.charAt(n)!=char2.charAt(n)){
                
if(mode) return(charSet.indexOf(char1.charAt(n))>charSet.indexOf(char2.charAt(n))?1:-1);
                
else     return(charSet.indexOf(char1.charAt(n))<charSet.indexOf(char2.charAt(n))?1:-1);
                
break;
            }

        }

        
return(0);
    }
,

    SortArr:
function(mode) {
        
return function (arr1, arr2){
            
var flag;
            
var a,b;
            a 
= arr1[0];
            b 
= arr2[0];
            
if(/^(\+|-)?\d+($|\.\d+$)/.test(a) && /^(\+|-)?\d+($|\.\d+$)/.test(b)){
                a
=eval(a);
                b
=eval(b);
                flag
=mode?(a>b?1:(a<b?-1:0)):(a<b?1:(a>b?-1:0));
            }

            
else{
                a
=a.toString();
                b
=b.toString();
                
if(a.charCodeAt(0)>=19968 && b.charCodeAt(0)>=19968){
                    flag 
= this.judge_CN(a,b,mode);
                }

                
else{
                    flag
=mode?(a>b?1:(a<b?-1:0)):(a<b?1:(a>b?-1:0));
                }

            }

            
return flag;
        }
;
    }
,

    
// 表格排序
    sort_tab:function(the_tab,col,mode){
        
if(!this.hasreadref){
             
this.readdef();
         }

        
var tab_arr = new Array();
        
var i;
        
for(i=1;i<the_tab.rows.length;i++){
            tab_arr.push(
new Array(the_tab.rows[i].cells[col].innerText.toLowerCase(),the_tab.rows[i]));
        }

        tab_arr.sort(
this.SortArr(mode).bind(this));
        
        
// 为了避免排序后表格颜色也跟着错位
        var j;
        
var oldRowColors={};
        
for(var i=0;i<this.tableobject.rows.length;i++){
            
for(var j=0;j<this.tableobject.rows[i].cells.length;j++){
                oldRowColors[i
+""+j]=this.tableobject.rows[i].cells[j].oBgc;
            }

        }

        
for(i=0;i<tab_arr.length;i++){
            
var nowRow=tab_arr[i][1];
            
var index=i+1;
            
for(j=0;j<nowRow.cells.length;j++){
                nowRow.cells[j].style.backgroundColor
=oldRowColors[index+""+j];
                nowRow.cells[j].style.color
=the_tab.rows[index].cells[j].oFc;
                nowRow.cells[j].oBgc
=nowRow.cells[j].style.backgroundColor;
                nowRow.cells[j].oFc
=nowRow.cells[j].style.color;
            }

            the_tab.lastChild.appendChild(nowRow);
        }

    }
,
    
    
// 鼠标单击表格
    clickIt:function(){
        
if(!this.hasreadref){
             
this.readdef();
         }

        event.cancelBubble
=true;
        
var the_obj=event.srcElement;
        
var i = 0 ,j = 0;
        
if(this.cur_cell!=null && this.cur_row!=0){
            
this.cur_cell.children[0].contentEditable = false;
            
with(this.cur_cell.children[0].runtimeStyle){
                borderLeft
=borderTop="";
                borderRight
=borderBottom="";
                backgroundColor
="";
                paddingLeft
="";
                textAlign
="";
            }

        }

        
if(the_obj.tagName.toLowerCase() != "table" && the_obj.tagName.toLowerCase() != "tbody" && the_obj.tagName.toLowerCase() != "tr"){
            
var the_td    = this.get_Element(the_obj,"td");
            
if(the_td==nullreturn;
            
var the_tr=the_td.parentElement;
            
var the_table=this.get_Element(the_td,"table");
            
var i=0;
            
this.clear_color();
            
this.cur_row = the_tr.rowIndex;
            
this.cur_col = the_td.cellIndex;
            
if(this.cur_row!=0){
                
for(i=0;i<the_tr.cells.length;i++){
                    
with(the_tr.cells[i]){
                        style.backgroundColor
=this.cur_bgc;
                        style.color
=this.cur_fc;
                    }

                }

            }

            
else{
                
if(this.show_col){
                    
for(i=1;i<the_table.rows.length;i++){
                        
with(the_table.rows[i].cells[this.cur_col]){
                            style.backgroundColor
=this.cur_bgc;
                            style.color
=this.cur_fc;
                        }

                    }

                }

                
                the_td.mode 
= !the_td.mode;
                
if(this.sort_col!=null){
                    
with(the_table.rows[0].cells[this.sort_col])
                        removeChild(lastChild);
                }

                
with(the_table.rows[0].cells[this.cur_col])
                    appendChild(the_td.mode
?this.arrowUp:this.arrowDown);
                
this.sort_tab(the_table,this.cur_col,the_td.mode);
                
this.sort_col=this.cur_col;
            }

        }

    }
,
    
    
// 鼠标双击表格
    dblclickIt:function(){
        
if(!this.hasreadref){
             
this.readdef();
         }

        event.cancelBubble
=true;
        
if(this.cur_row!=0){
            
var the_obj = event.srcElement;
            
if(the_obj.tagName.toLowerCase() != "table" && the_obj.tagName.toLowerCase() != "tbody" && the_obj.tagName.toLowerCase() != "tr"){
                
var the_td    = this.get_Element(the_obj,"td");
                
if(the_td==nullreturn;
                
this.cur_cell=the_td;
                
if(the_td.children.length!=1)
                    the_td.innerHTML
="<div>" + the_td.innerHTML + "</div>";
                
else if(the_td.children.length==1 && the_td.children[0].tagName.toLowerCase()!="div")
                    the_td.innerHTML
="<div>" + the_td.innerHTML + "</div>";
                
this.cur_cell.children[0].contentEditable = true;
                
with(this.cur_cell.children[0].runtimeStyle){
                    borderRight
=borderBottom="buttonhighlight 1px solid";
                    borderLeft
=borderTop="black 1px solid";
                    backgroundColor
="#dddddd";
                    paddingLeft
="5px";
                }

            }

        }

    }

     
 }

一个演示的html如下:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=GBK" /> 
<title>::丰富的交互表格组件演示::</title>
<style>
    .datatable 
{border-width:1px;width:100%;align:center}

    .trhead
{background-color:"#DFE1F7";cursor:hand;
            star
:expression(onmouseover=function(){this.title="点击可排序"}
,
                             onmouseout=function()
{this.title=""})}
    
    .trcontent
{background-color:expression((this.sectionRowIndex%2==0)?"#ffffff":"#EEEEEE");
                  cursor
:hand}

    
    .arrow
{font-family: webdings; color: black; padding: 0; font-size: 10px;
                 height
: 11px; width: 10px; overflow: hidden;
                 margin-bottom
: 2; margin-top: -3; padding: 0; padding-top: 0; padding-bottom: 2;}

</style>
<script src="/js/prototype.js"></script>
<script src="/js/richtable.js"></script>
</head>
<body>
<table id="tabledemo" class="datatable">
    
<tr class="trhead">
        
<td width="10%">球队名</td>
        
<td width="30%">积分</td>
        
<td width="60%">排名</td>
    
</tr>
    
<tr class="trcontent">
        
<td>马刺</td>
        
<td>100</td>
        
<td>1</td>
    
</tr>
    
<tr class="trcontent">
        
<td>太阳</td>
        
<td>90</td>
        
<td>3</td>
    
</tr>
    
<tr class="trcontent">
        
<td>小牛</td>
        
<td>95</td>
        
<td>3</td>
    
</tr>
    
<tr class="trcontent">
        
<td>火箭</td>
        
<td>85</td>
        
<td>4</td>
    
</tr>
</table>
<script>
    
var tabledemo=new RichTable("tabledemo");
</script>
</body>
</html>


ps: 最近写ajax的时候经常碰到一些怪问题,例如通过js向head元素中增加新的<script src="/js/demo.js"></script>这些元素的时候会起不到效果,但如增加一个alert(document.getElementsByTagName("head").item(0).innerHTML),再运行就OK,难道是js没加载抑或head元素需要重新加载?

posted on 2006-03-06 17:07 BlueDavy 阅读(4186) 评论(4)  编辑  收藏 所属分类: Javascript

评论

# re: 修改版的丰富交互表格RichTable.js 2006-03-07 15:33 wangq1979

哥们,怎么无法运行呀,是不是还缺少js/prototype.js这个呀,一运行就提示js错误!
效果是什么样的,贴出来看看呀  回复  更多评论   

# re: 修改版的丰富交互表格RichTable.js 2006-03-08 12:43 BlueDavy

恩,prototype.js从网上down一个吧,^_^  回复  更多评论   

# re: 修改版的丰富交互表格RichTable.js[未登录] 2008-07-25 13:48 cc

偶发现一个问题,如果排序的对象含有_,会出现很奇怪的现象  回复  更多评论   

# re: 修改版的丰富交互表格RichTable.js 2008-11-10 14:56 didi

谢谢,很有帮助  回复  更多评论   


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