JavaScript实现弹出层的移动兼容IE和Firefox

最新推荐文章于 2025-08-23 10:01:05 发布
最新推荐文章于 2025-08-23 10:01:05 发布 · 116 阅读
文章标签：
#IE #Firefox #JavaScript #CSS #浏览器 #ViewUI
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本文介绍了一种使用JavaScript自定义弹出对话框的方法，包括HTML结构、JavaScript逻辑及CSS样式，实现了可移动、自动隐藏等功能。
部分内容是参考的别人的内容 先写上html的部分
<!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>JavaScript自定义弹出对话框</title>
		<link rel="styleSheet" href="inc/style.css" type="text/css" />
		<script type="text/javascript" src="inc/dialog_box.js"></script>
	</head>
	<body>
		<div id="content">
			<p>
		<a href="javascript:showDialog('Warning','出现警告，清自习查看.','warning');">点我</a>
			</p>
		</div>
	</body>
</html>
下面是JavaScript的代码，感觉还不错
var TIMER = 5;
var SPEED = 10;
var WRAPPER = 'content';

//以下的一段代码是为了设定要显示的位置
function pageWidth() {
  return window.innerWidth != null ? window.innerWidth : document.documentElement && document.documentElement.clientWidth ? document.documentElement.clientWidth : document.body != null ? document.body.clientWidth : null;
}

function pageHeight() {
  return window.innerHeight != null? window.innerHeight : document.documentElement && document.documentElement.clientHeight ? document.documentElement.clientHeight : document.body != null? document.body.clientHeight : null;
}

function topPosition() {
  return typeof window.pageYOffset != 'undefined' ? window.pageYOffset : document.documentElement && document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop ? document.body.scrollTop : 0;
}

function leftPosition() {
  return typeof window.pageXOffset != 'undefined' ? window.pageXOffset : document.documentElement && document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft ? document.body.scrollLeft : 0;
}
//通过传递的参数创建div层的信息
function showDialog(title,message,type,autohide) {
  if(!type) {
    type = 'error';
  }
  var dialog;
  var dialogheader;
  var dialogclose;
  var dialogtitle;
  var dialogcontent;
  var dialogmask;
  if(!document.getElementById('dialog')) {
    dialog = document.createElement('div');
    dialog.id = 'dialog';
    dialogheader = document.createElement('div');
    dialogheader.id = 'dialog-header';
    dialogtitle = document.createElement('div');
    dialogtitle.id = 'dialog-title';
    dialogclose = document.createElement('div');
    dialogclose.id = 'dialog-close'
    dialogcontent = document.createElement('div');
    dialogcontent.id = 'dialog-content';
    dialogmask = document.createElement('div');
    dialogmask.id = 'dialog-mask';
    document.body.appendChild(dialogmask);
    document.body.appendChild(dialog);
    dialog.appendChild(dialogheader);
    dialogheader.appendChild(dialogtitle);
    dialogheader.appendChild(dialogclose);
    dialog.appendChild(dialogcontent);
	document.getElementById("dialog-header").onmousedown = function() {
		move(event);
	};
	document.getElementById("dialog-header").onmouseup = function() {
		stopMove(event);
	};

    dialogclose.setAttribute('onclick','hideDialog()');
    dialogclose.onclick = hideDialog;
  } else {
    dialog = document.getElementById('dialog');
    dialogheader = document.getElementById('dialog-header');
    dialogtitle = document.getElementById('dialog-title');
    dialogclose = document.getElementById('dialog-close');
    dialogcontent = document.getElementById('dialog-content');
    dialogmask = document.getElementById('dialog-mask');
    dialogmask.style.visibility = "visible";
    dialog.style.visibility = "visible";
  }

  dialog.style.opacity = .00;
  dialog.style.filter = 'alpha(opacity=0)';
  dialog.alpha = 0;
  var width = pageWidth();
  var height = pageHeight();
  var left = leftPosition();
  var top = topPosition();
  var dialogwidth = dialog.offsetWidth;
  var dialogheight = dialog.offsetHeight;
  var topposition = top + (height / 3) - (dialogheight / 2);
  var leftposition = left + (width / 2) - (dialogwidth / 2);
  dialog.style.top = topposition + "px";
  dialog.style.left = leftposition + "px";
  dialogheader.className = type + "header";
  dialogtitle.innerHTML = title;
  dialogcontent.className = type;
  dialogcontent.innerHTML = message;
  var content = document.getElementById(WRAPPER);
  dialogmask.style.height = content.offsetHeight + 'px';
  dialog.timer = setInterval("fadeDialog(1)", TIMER);
  if(autohide) {
    dialogclose.style.visibility = "hidden";
    window.setTimeout("hideDialog()", (autohide * 1000));
  } else {
    dialogclose.style.visibility = "visible";
  }
}
function hideDialog() {
  var dialog = document.getElementById('dialog');
  clearInterval(dialog.timer);
  dialog.timer = setInterval("fadeDialog(0)", TIMER);
}
function fadeDialog(flag) {
  if(flag == null) {
    flag = 1;
  }
  var dialog = document.getElementById('dialog');
  var value;
  if(flag == 1) {
    value = dialog.alpha + SPEED;
  } else {
    value = dialog.alpha - SPEED;
  }
  dialog.alpha = value;
  dialog.style.opacity = (value / 100);
  dialog.style.filter = 'alpha(opacity=' + value + ')';
  if(value >= 99) {
    clearInterval(dialog.timer);
    dialog.timer = null;
  } else if(value <= 1) {
    dialog.style.visibility = "hidden";
    document.getElementById('dialog-mask').style.visibility = "hidden";
    clearInterval(dialog.timer);
  }
}

//实现浏览器之间的event兼容
function getSrc(event) {
	return (event.srcElement?event.srcElement:event.target);
}

var moving = false;
var px,py;
//实现层的移动
function  move(mevent) {
	//在IE中和Firefox中兼容  按下鼠标左键的事件不同
	if(document.all&&(mevent.button ==1 || mevent.button == 0)) {
		moving = true;
	} else if(event.button == 0) {
		moving = true;
	}
	//点击了左键 可以移动
	if(moving && (mevent.button == 1 || mevent.button == 0)) {
		var head = document.getElementById("dialog");
		px = parseInt(mevent.clientX-head.offsetLeft);
        py = parseInt(mevent.clientY-head.offsetTop);
		document.documentElement.onmousemove = function(mevent) {
			 var eEvent;
             if(document.all) {
			 	 eEvent=event;
			 } else {
			 	eEvent = mevent;
			 }
             var x=eEvent.clientX-px;
             var y=eEvent.clientY-py;
             head.style.left=(x)+"px";
             head.style.top=(y)+"px";
		}
	}
}

//释放层的移动
function stopMove(event) {
	moving = false;
	document.documentElement.onmousemove=null;


下面的css的内容
#content {
	padding: 20px;
}

#dialog {
	position: absolute;
	left: expression(( body . clientWidth-350)/ 2 );
	top: expression(( body . clientHeight-200)/ 2 );
	width: 425px;
	padding: 10px;
	z-index: 200;
	background: #fff;
}

#dialog-header {
	display: block;
	position: relative;
	width: 411px;
	padding: 3px 6px 7px;
	height: 14px;
	font-size: 14px;
	font-weight: bold;
	cursor: move;
}

#dialog-title {
	float: left;
}

#dialog-close {
	float: right;
	cursor: pointer;
	margin: 3px 3px 0 0;
	height: 11px;
	width: 11px;
	background: url(dialog_close.gif) no-repeat
}

#dialog-content {
	display: block;
	height: 160px;
	padding: 6px;
	color: #666666;
	font-size: 13px
}

#dialog-mask {
	position: absolute;
	top: 0;
	left: 0;
	min-height: 100%;
	width: 100%;
	background: #FFF;
	opacity: .75;
	filter: alpha(opacity = 75,style = 0);
	z-index: 100;
}
.warning {
	background: #fff url(warning_bg.jpg) bottom right no-repeat;
	border: 1px solid #c5a524;
	border-top: none
}

.warningheader {
	background: url(warning_header.gif) repeat-x;
	color: #957c17;
	border: 1px solid #c5a524;
	border-bottom: none
}

具体的代码见附件里面