自定义对话框

/*******************************************************************************************  
 * http://2lin.net
 * Email:caoailin@gmail.com
 * QQ:38062022
 * Creation date: 2006-11-27
 * 下面的内容可以拷贝到一个JS文件里面
*********************************************************************************************/

// 控制按钮常量
var MB_OK = 0;
var MB_CANCEL = 1;
var MB_OKCANCEL = 2;
var MB_YES = 3;
var MB_NO = 4;
var MB_YESNO = 5;
var MB_YESNOCANCEL = 6;

// 控制按钮文本
var MB_OK_TEXT = "确定";
var MB_CANCEL_TEXT = "取消";
var MB_YES_TEXT = " 是 ";
var MB_NO_TEXT = " 否 ";

//提示图标
var MB_ICON = "http://2lin.net/image/information.gif";

//委托方法
var MB_OK_METHOD = null;
var MB_CANCEL_METHOD = null;
var MB_YES_METHOD = null;
var MB_NO_METHOD = null;
var MB_BACKCALL = null;

var MB_STR = '<style type="text/css"><!--' +
   'body{margin:0px;}' +
   '.msgbox_title{background-color: #B1CDF3;height:25px;position:relative;font-size:14px;line-height:25px;padding-left:10px;border-bottom:1px solid #000;}' +
   '.msgbox_control{text-align:center;clear:both;height:28px;}' +
   '.msgbox_button{background-color: #B1CDF3;border:1px solid #003366;font-size:12px;line-height:20px;height:21px;}' +
   '.msgbox_content{padding:10px;float:left;line-height: 20px;}' +
   '.msgbox_icon{width: 50px;height: 50px;float: left;text-align: center;line-height:50px;padding-top:10px;}' +
   '.msgbox_mask{position:absolute;left:0px;top:0px;z-index:99999;background-color:#333333;width:100%;height:100%;}' +
   '.msgbox{background-color: #EFFAFE;position: absolute;height:auto;font-size:12px;top:50%;left:50%;border:1px solid #999999;}' +
   '--></style>' +
   '<div id="msgBoxMask" class="msgbox_mask" style="filter: alpha(opacity=0);display:none;"></div>' +
   '<div class="msgbox" style="display:none; z-index:100000;" id="msgBox">' +
   '<div class="msgbox_title" id="msgBoxTitle"></div>' +
   '<div class="msgbox_icon" id="msgBoxIcon"></div>' +
   '<div class="msgbox_content" id="msgBoxContent"></div>' +
   '<div class="msgbox_control" id="msgBoxControl"></div></div>';

var Timer = null;

document.write(MB_STR);
var icon = new Image();
icon.src = MB_ICON;

/* 提示对话框
 * 参数 1 : 提示内容
 * 参数 2 : 提示标题
 * 参数 3 : 图标路径
 * 参数 4 : 按钮类型
*/

function MessageBox(){
   var _content = arguments[0] || "这是一个对话框！";
   var _title   = arguments[1] || "提示";
   var _icon    = arguments[2] || MB_ICON;
   var _button  = arguments[3] || MB_OK;
   MB_BACKCALL  = arguments[4];
  
   var _iconStr = '<img src="{0}">';
   var _btnStr  = '<input name="{0}" id="{0}" type="button" class="msgbox_button" value="{1}" onclick="MBMethod(this)" />';
  
  
   switch(_button)
   {     
   case MB_CANCEL      : _btnStr = _btnStr.toFormatString("msgBoxBtnCancel", MB_CANCEL_TEXT); break;
 
   case MB_YES         : _btnStr = _btnStr.toFormatString("msgBoxBtnYes", MB_YES_TEXT); break;
  
   case MB_NO          : _btnStr = _btnStr.toFormatString("msgBoxBtnNo", MB_NO_TEXT); break;
  
   case MB_OKCANCEL    :
        _btnStr = _btnStr.toFormatString("msgBoxBtnOk", MB_OK_TEXT) + "&nbsp;&nbsp;" +
                _btnStr.toFormatString("msgBoxBtnCancel", MB_CANCEL_TEXT);
     break;
    
   case MB_YESNO       :
         _btnStr = _btnStr.toFormatString("msgBoxBtnYes", MB_YES_TEXT) + "&nbsp;&nbsp;" +
                _btnStr.toFormatString("msgBoxBtnNo", MB_NO_TEXT);
      break;
  
   case MB_YESNOCANCEL :
         _btnStr = _btnStr.toFormatString("msgBoxBtnYes", MB_YES_TEXT) + "&nbsp;&nbsp;" +
                _btnStr.toFormatString("msgBoxBtnNo", MB_NO_TEXT) + "&nbsp;&nbsp;" +
       _btnStr.toFormatString("msgBoxBtnCancel", MB_CANCEL_TEXT);
      break;
     
   default :  _btnStr = _btnStr.toFormatString("msgBoxBtnOk", MB_OK_TEXT);  break; 
  
   }
   //解决　FF 下会复位
   ScrollTop = GetBrowserDocument().scrollTop;
   ScrollLeft = GetBrowserDocument().scrollLeft;
   GetBrowserDocument().style.overflow = "hidden";
   GetBrowserDocument().scrollTop = ScrollTop;  
   GetBrowserDocument().scrollLeft = ScrollLeft;
     
   $("msgBoxTitle").innerHTML = _title;
   $("msgBoxIcon").innerHTML = _iconStr.toFormatString(_icon);
   $("msgBoxContent").innerHTML = _content;
   $("msgBoxControl").innerHTML =  _btnStr;
  
   OpacityValue = 0;
   $("msgBox").style.display = "";   
   try{$("msgBoxMask").filters("alpha").opacity = 0;}catch(e){};
   $("msgBoxMask").style.opacity = 0;
   $("msgBoxMask").style.display = "";
   $("msgBoxMask").style.height = GetBrowserDocument().scrollHeight + "px";
   $("msgBoxMask").style.width = GetBrowserDocument().scrollWidth + "px";
  
   Timer = setInterval("DoAlpha()",1);
   //设置位置  
   $("msgBox").style.width = "100%";  
   $("msgBox").style.width = ($("msgBoxIcon").offsetWidth + $("msgBoxContent").offsetWidth + 2) + "px";
  
   $("msgBox").style.marginTop = (-$("msgBox").offsetHeight/2 + GetBrowserDocument().scrollTop) + "px";
   $("msgBox").style.marginLeft = (-$("msgBox").offsetWidth/2 + GetBrowserDocument().scrollLeft) + "px";  
  
   if(_button == MB_OK || _button == MB_OKCANCEL){
     $("msgBoxBtnOk").focus();
   }else if(_button == MB_YES || _button == MB_YESNO || _button == MB_YESNOCANCEL){
    $("msgBoxBtnYes").focus();
   } 

}

var OpacityValue = 0;
var ScrollTop = 0;
var ScrollLeft = 0;

function GetBrowserDocument()
{
   var _dcw = document.documentElement.clientHeight;
   var _dow = document.documentElement.offsetHeight;
   var _bcw = document.body.clientHeight;
   var _bow = document.body.offsetHeight;
  
   if(_dcw == 0) return document.body;
   if(_dcw == _dow) return document.documentElement;
  
   if(_bcw == _bow && _dcw != 0)
     return document.documentElement;
   else
     return document.body;
}

function SetOpacity(obj,opacity){
  if(opacity >=1 ) opacity = opacity / 100; 
   
  try{obj.style.opacity = opacity; }catch(e){}
  
  try{
   if(obj.filters){
    obj.filters("alpha").opacity = opacity * 100;
   }
   
  }catch(e){}
}
 
function DoAlpha(){
 if (OpacityValue > 20){clearInterval(Timer);return 0;}
 OpacityValue += 5; 
 SetOpacity($("msgBoxMask"),OpacityValue);
}

function MBMethod(obj)
{  
   switch(obj.id)
   {
      case "msgBoxBtnOk" : if(MB_BACKCALL) {MB_BACKCALL(MB_OK);} else {if(MB_OK_METHOD) MB_OK_METHOD();} break;
   case "msgBoxBtnCancel" : if(MB_BACKCALL) {MB_BACKCALL(MB_CANCEL);} else {if(MB_CANCEL_METHOD) MB_CANCEL_METHOD();} break;
   case "msgBoxBtnYes" : if(MB_BACKCALL) {MB_BACKCALL(MB_YES);} else {if(MB_YES_METHOD) MB_YES_METHOD();} break;
   case "msgBoxBtnNo" : if(MB_BACKCALL) {MB_BACKCALL(MB_NO);} else {if(MB_NO_METHOD) MB_NO_METHOD();} break;
   }  
  
   MB_OK_METHOD = null;
   MB_CANCEL_METHOD = null;
   MB_YES_METHOD = null;
   MB_NO_METHOD = null;
   MB_BACKCALL = null;
  
   MB_OK_TEXT = "确定";
   MB_CANCEL_TEXT = "取消";
   MB_YES_TEXT = " 是 ";
   MB_NO_TEXT = " 否 ";
  
   $("msgBox").style.display = "none"; 
   $("msgBoxMask").style.display = "none";    
   GetBrowserDocument().style.overflow = "";
   GetBrowserDocument().scrollTop = ScrollTop;
   GetBrowserDocument().scrollLeft = ScrollLeft;
}

String.prototype.toFormatString = function(){ 
   var _str = this;
   for(var i = 0; i < arguments.length; i++){   
      _str = eval("_str.replace(/\\{"+ i +"\\}/ig,'" + arguments[i] + "')");
   }
   return _str;
}

function $(obj){
   return document.getElementById(obj);
}
///////////////////////////////////////////////////////////////////////////////////////
</script>
<script language="javascript">
function test()
{
   var _msg = "<font color=red><b>演示：</b></font><br/>普通对话框！";
   MessageBox(_msg);
}

function test1()
{
  MB_OK_METHOD = function(){alert('你按了OK');}
  MB_YES_METHOD = function(){alert('你按了YES');}
  MB_NO_METHOD = function(){alert('你按了NO');}
  MB_CANCEL_METHOD = function(){alert('你按了CANCEL');}
 
  var _msg = "<font color=red><b>演示：</b></font><br/>调用对话框。是、否、取消";
  MessageBox(_msg,"演示",null,MB_YESNOCANCEL); 
}

function test2()
{
  var _msg = "<font color=red><b>演示：</b></font><br/>调用对话框。是、否、取消";
  MessageBox(_msg,"演示",MB_ICON,MB_YESNOCANCEL,callback);
}

function test4()
{
  var _msg = "<font color=red><b>演示：</b></font><br/>调用对话框。确定、取消";
  MessageBox(_msg,"演示",MB_ICON,MB_OKCANCEL,callback);
}

function callback(value)
{
  switch(value)
  {
     case MB_OK : alert('你按了OK'); break;
     case MB_YES : alert('你按了YES'); break;
     case MB_NO : alert('你按了NO'); break;
     case MB_CANCEL : alert('你按了CANCEL'); break;
   }
}

function test3()
{
  MB_YES_TEXT = "演示一";
  MB_NO_TEXT = "演示二";
  MB_CANCEL_TEXT = "演示三";
  var _msg = "<font color=red><b>演示：</b></font><br/>这是自定义的对话框<br/> <font color=green>MB_YES_TEXT  MB_NO_TEXT MB_CANCEL_TEXT MB_OK_TEXT</font>";
  MessageBox(_msg,"演示",MB_ICON,MB_YESNOCANCEL,callback);
}