当前位置: 首页 > 图文教程 > 网络编程 > Javascript > Js的MessageBox

Javascript
JavaScript 拖拽实现（附注释），最经典简单短小精悍！
学习drag and drop js实现代码经典之作
jquery创建div 实现代码
jquery遍历input取得input的name
jQuery 对象中的类数组操作
js 发个判断字符串是否为符合标准的函数
细品javascript 寻址,闭包,对象模型和相关问题
在IE上直接编辑网页内容的js代码(IE地址栏js)
一个选择最快的服务器转向代码
JQUERY 对象与DOM对象之转换
javascript 对象比较实现代码
jquery 获取json数据实现代码
Firefox div高度自适应
xml和web特殊字符
js 表单验证方法(实用)
ie和firefox不兼容的解决方法集合
js 数组操作代码集锦
js checkbox(复选框) 使用集锦
JS 判断代码全收集
理解JavaScript的caller,callee,call,apply

No. « 134 135 136 137 »

技术文章搜索

关键字

Javascript 中的 Js的MessageBox

出处:互联网   整理: 软晨网（RuanChen.com）   发布: 2009-10-10   浏览: 261 ::
收藏到网摘: n/a

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:[email protected]
* 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) + " " +
_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>