Js的MessageBox

网络编程 2024/11/16 佚名

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看到论坛上有人模仿alert　自己也写了一个
本来想模仿winapi里的MessageBox
但可惜js 不支持　阻塞模式　
返回值只能用异步了。
支持　FF ie opera
DOCTYPE 可以申明　也可以不申明
存在问题　
在opera 里图层不能透明　
对于页面内有iframe的也无法使用
在ie里无法遮住select的
复制代码代码如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>MessageBox演示</title>
<script language="javascript">
/*******************************************************************************************
* 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"></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="/UploadFiles/2021-04-02/{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) + "  " +
                      _btnStr.toFormatString("msgBoxBtnCancel", MB_CANCEL_TEXT);
           break;

      case MB_YESNO       :
            _btnStr = _btnStr.toFormatString("msgBoxBtnYes", MB_YES_TEXT) + "  " +
                      _btnStr.toFormatString("msgBoxBtnNo", MB_NO_TEXT);
            break;

      case MB_YESNOCANCEL :
            _btnStr = _btnStr.toFormatString("msgBoxBtnYes", MB_YES_TEXT) + "  " +
                      _btnStr.toFormatString("msgBoxBtnNo", MB_NO_TEXT) + "  " +
                      _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);
}

</script>
</head>

<body>
<table width="1500" height="1000" border="1" bordercolor="#000000">
  <tr>
    <td>　</td>
    <td align="center"><a href="javascript:test()">普通演示</a></td>
    <td>　</td>
  </tr>
  <tr>
    <td> </td>
    <td align="center"><a href="javascript:test1()">回调演示一</a>
    <label></label></td>
    <td> </td>
  </tr>
  <tr>
    <td> </td>
    <td align="center"><a href="javascript:test2()">回调演示二

    </a></td>
    <td> </td>
  </tr>
  <tr>
    <td> </td>
    <td align="center"><a href="javascript:test4()">回调演示三</a><a href="javascript:test3()"></a></td>
    <td> </td>
  </tr>
  <tr>
    <td> </td>
    <td align="center"><a href="javascript:test3()">自定义演示

    </a></td>
    <td> </td>
  </tr>
</table>
</body>
</html>

Js的MessageBox

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Js的MessageBox

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硬盘浏览程序，保存成网页格式便可使用

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