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Javascript melaksanakan perubahan warna yang boleh diseret dan kemahiran instance_javascript tetingkap lapisan penutup

WBOY
WBOYasal
2016-05-16 15:58:541000semak imbas

Contoh dalam artikel ini menerangkan kaedah melaksanakan perubahan warna boleh seret dan menutup tetingkap lapisan menggunakan JavaScript. Kongsikan dengan semua orang untuk rujukan anda. Analisis khusus adalah seperti berikut:

Ini ialah kod yang melaksanakan penyeretan lapisan berdasarkan javascript CSS Perbezaannya ialah tetingkap akan berubah warna apabila menyeret, menjadikan pengalaman operasi lebih baik. Ia juga boleh menunjukkan/menyembunyikan atau menutup kesan yang dibuka, fikirkannya apabila anda tiada apa-apa untuk dilakukan 

<html>
<head>
<title>拖动窗口</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<style type='text/css'>
<!--
body{font-size:12px;}
a:visited{text-decoration:none;color:slategray;}
a:hover{text-decoration:underline;color:slategray;}
a:link{text-decoration:none;color:slategray;}
-->
</style>
<script language=JScript>
<!--
var x0=0,y0=0,x1=0,y1=0;
var offx=6,offy=6;
var moveable=false;
var hover='orange',normal='#336699';//color;
var index=10000;//z-index;
//开始拖动;
function startDrag(obj)
{
if(event.button==1)
{
//锁定标题栏;
obj.setCapture();
//定义对象;
var win = obj.parentNode;
var sha = win.nextSibling;
//记录鼠标和层位置;
x0 = event.clientX;
y0 = event.clientY;
x1 = parseInt(win.style.left);
y1 = parseInt(win.style.top);
//记录颜色;
normal = obj.style.backgroundColor;
//改变风格;
obj.style.backgroundColor = hover;
win.style.borderColor = hover;
obj.nextSibling.style.color = hover;
sha.style.left = x1 + offx;
sha.style.top = y1 + offy;
moveable = true;
}
}
//拖动;
function drag(obj)
{
if(moveable)
{
var win = obj.parentNode;
var sha = win.nextSibling;
win.style.left = x1 + event.clientX - x0;
win.style.top = y1 + event.clientY - y0;
sha.style.left = parseInt(win.style.left) + offx;
sha.style.top = parseInt(win.style.top) + offy;
}
}
//停止拖动;
function stopDrag(obj)
{
if(moveable)
{
var win = obj.parentNode;
var sha = win.nextSibling;
var msg = obj.nextSibling;
win.style.borderColor = normal;
obj.style.backgroundColor = normal;
msg.style.color = normal;
sha.style.left = obj.parentNode.style.left;
sha.style.top = obj.parentNode.style.top;
obj.releaseCapture();
moveable = false;
}
}
//获得焦点;
function getFocus(obj)
{
if(obj.style.zIndex!=index)
{
index = index + 2;
var idx = index;
obj.style.zIndex=idx;
obj.nextSibling.style.zIndex=idx-1;
}
}
//最小化;
function min(obj)
{
var win = obj.parentNode.parentNode;
var sha = win.nextSibling;
var tit = obj.parentNode;
var msg = tit.nextSibling;
var flg = msg.style.display=="none";
if(flg)
{
win.style.height = parseInt(msg.style.height) + parseInt(tit.style.height) + 2*2;
sha.style.height = win.style.height;
msg.style.display = "block";
obj.innerHTML = "0";
}
else
{
win.style.height = parseInt(tit.style.height) + 2*2;
sha.style.height = win.style.height;
obj.innerHTML = "2";
msg.style.display = "none";
}
}
//创建一个对象;
function xWin(id,w,h,l,t,tit,msg)
{
index = index+2;
this.id = id;
this.width = w;
this.height = h;
this.left = l;
this.top = t;
this.zIndex = index;
this.title = tit;
this.message = msg;
this.obj = null;
this.bulid = bulid;
this.bulid();
}
//初始化;
function bulid()
{
var str = ""
+ "<div id=xMsg" + this.id + " "
+ "style='"
+ "z-index:" + this.zIndex + ";"
+ "width:" + this.width + ";"
+ "height:" + this.height + ";"
+ "left:" + this.left + ";"
+ "top:" + this.top + ";"
+ "background-color:" + normal + ";"
+ "color:" + normal + ";"
+ "font-size:8pt;"
+ "font-family:Tahoma;"
+ "position:absolute;"
+ "cursor:default;"
+ "border:2px solid " + normal + ";"
+ "' "
+ "onmousedown='getFocus(this)'>"
+ "<div "
+ "style='"
+ "background-color:" + normal + ";"
+ "width:" + (this.width-2*2) + ";"
+ "height:20;"
+ "color:white;"
+ "' "
+ "onmousedown='startDrag(this)' "
+ "onmouseup='stopDrag(this)' "
+ "onmousemove='drag(this)' "
+ "ondblclick='min(this.childNodes[1])'"
+ ">"
+ "<span style='width:" + (this.width-2*12-4) + ";padding-left:3px;'>" + this.title + "</span>"
+ "<span style='width:12;border-width:0px;color:white;font-family:webdings;' onclick='min(this)'>0</span>"
+ "<span style='width:12;border-width:0px;color:white;font-family:webdings;' onclick='ShowHide(\""+this.id+"\",null)'>r</span>"
+ "</div>"
+ "<div style='"
+ "width:100%;"
+ "height:" + (this.height-20-4) + ";"
+ "background-color:white;"
+ "line-height:14px;"
+ "word-break:break-all;"
+ "padding:3px;"
+ "'>" + this.message + "</div>"
+ "</div>"
+ "<div id=xMsg" + this.id + "bg style='"
+ "width:" + this.width + ";"
+ "height:" + this.height + ";"
+ "top:" + this.top + ";"
+ "left:" + this.left + ";"
+ "z-index:" + (this.zIndex-1) + ";"
+ "position:absolute;"
+ "background-color:black;"
+ "filter:alpha(opacity=40);"
+ "'></div>";
document.body.insertAdjacentHTML("beforeEnd",str);
}
//显示隐藏窗口
function ShowHide(id,dis){
var bdisplay = (dis==null)&#63;((document.getElementById("xMsg"+id).style.display=="")&#63;"none":""):dis
document.getElementById("xMsg"+id).style.display = bdisplay;
document.getElementById("xMsg"+id+"bg").style.display = bdisplay;
}
//-->
</script>
<script language='JScript'>
<!--
function initialize()
{
var a = new xWin("1",160,200,200,200,"窗口1","xWin Demo");
var b = new xWin("2",240,200,100,100,"窗口2","Welcome"); 
var c = new xWin("3",200,160,250,50,"窗口3","Copyright");
ShowHide("1","none");//隐藏窗口1
}
window.onload = initialize;
//-->
</script>
</head>
<base target="_blank">
<body onselectstart='return false' oncontextmenu='return false' >
<a onclick="ShowHide('1',null);return false;" href="">Windows 1</a>
<a onclick="ShowHide('2',null);return false;" href="">Windows 2</a>
<a onclick="ShowHide('3',null);return false;" href="">Windows 3</a>
</body>
</html>

Saya harap artikel ini akan membantu reka bentuk pengaturcaraan JavaScript semua orang.

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Artikel sebelumnya：Contoh penggunaan pernyataan With dalam kemahiran Javascript_javascriptArtikel seterusnya：Contoh penggunaan pernyataan With dalam kemahiran Javascript_javascript

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