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:
nbsp;html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
MessageBox演示
' +
'
' +
'
' +
'
' +
'
' +
'
';
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 = '
';
var _btnStr = '
';
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 _str = eval("_str.replace(/\{"+ i +"\}/ig,'" + arguments[i] + "')");
}
return _str;
}
function $(obj){
return document.getElementById(obj);
}
///////////////////////////////////////////////////////////////////////////////////////
普通演示回调演示一回调演示二回调演示三自定义演示
Js的MessageBox_javascript技巧
•
👁 0人浏览过