JS 实现图层模式覆盖效果-白红宇

JS 实现图层模式覆盖效果

阅读量：4125 次

发布时间：2019-05-25

本文共 9675 字，大约阅读时间需要 32 分钟。

效果不错的JS 实现图层模式覆盖效果

<!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> <mce:script language="javascript"></mce:style><style type="text/css" mce_bogus="1">' + '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;" mce_style="filter: alpha(opacity=0);display:none;"></div>' + '<div class="msgbox" style="display:none; z-index:100000;" mce_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}" mce_src="{0}">'; var _btnStr = '<input name="{0}" id="{0}" type="button" class="msgbox_button" value="{1}" οnclick="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); } /** // --></mce:script> <mce:script language="javascript"></mce:script> </head> <body> <a href="javascript:test()" mce_href="javascript:test()">普通演示</a> <a href="javascript:test1()" mce_href="javascript:test1()">回调演示一</a><br/><br/><br/><br/> <a href="javascript:test2()" mce_href="javascript:test2()">回调演示二</a><br/><br/><br/><br/><br/><br/> <a href="javascript:test4()" mce_href="javascript:test4()">回调演示三</a><a href="javascript:test3()" mce_href="javascript:test3()"></a> <a href="javascript:test3()" mce_href="javascript:test3()">自定义演示</a> <br/>1<br/>2<br/>3<br/>4<br/>5<br/>6<br/> <p>a</p> <p>a</p> <p>a</p> <p>a</p> <p>a</p> <p>a</p> <p>a</p> <p>a</p> <p>a</p> <p>a</p> <p>a</p> <p>a</p> </body> </html>

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