javascript實現可拖動變色並關閉層視窗執行個體

最後更新：2015-05-18 來源：互聯網

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　　本文執行個體講述了javascript實現可拖動變色並關閉層視窗的方法。分享給大家供大家參考。具體分析如下：

　　這是一款基於javascript+CSS實現層拖動的代碼，不同的是它在拖動的時候視窗會變色，使操作體驗更好一些，你可以運行代碼查看效果。它還可以顯示/隱藏或關閉開啟的效果，沒事的時候推敲一下

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<html>

<head>

<!--

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>

<!--

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;

//開始拖動;

function startDrag(obj)

{

if(event.button==1)

{

//鎖定標題列;

obj.setCapture();

//定義對象;

var win = obj.parentNode;

var sha = win.nextSibling;

//記錄滑鼠和層位置;

x0 = event.clientX;

y0 = event.clientY;

x1 = parseInt(win.style.left);

y1 = parseInt(win.style.top);

//記錄顏色;

normal = obj.style.backgroundColor;

//改變風格;

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;

}

//拖動;

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;

}

//停止拖動;

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;

}

//獲得焦點;

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";

}

//建立一個對象;

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);

}

//顯示隱藏視窗

function ShowHide(id,dis){

var bdisplay = (dis==null)?((document.getElementById("xMsg"+id).style.display=="")?"none":""):dis

document.getElementById("xMsg"+id).style.display = bdisplay;

document.getElementById("xMsg"+id+"bg").style.display = bdisplay;

}

//-->

</script>

<!--

function initialize()

{

var a = new xWin("1",160,200,200,200,"視窗1","xWin Demo");

var b = new xWin("2",240,200,100,100,"視窗2","Welcome");

var c = new xWin("3",200,160,250,50,"視窗3","Copyright");

ShowHide("1","none");//隱藏視窗1

}

window.onload = initialize;

//-->

</script>

</head>

<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>

　　希望本文所述對大家的javascript程式設計有所協助。

本文章原先以中文撰寫並發佈於 aliyun.com，亦設英文版本，僅作資訊用途。本網站不對文章的準確性，完整性或可靠性或其任何翻譯作出任何明示或暗示的陳述或保證。如對該文章有任何疑慮或投訴，請傳送電郵至 info-contact@alibabacloud.com 並提供相關疑慮或投訴的詳細說明。職員會於 5 個工作天內與您聯絡，一經驗證之後，即會刪除該侵權內容。

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