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Light blue mouse Drag selection box

Source: Internet
Author: User
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<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<meta http-equiv= "Content-type" content= "text/html; Charset=utf-8 "/>
<style type= "Text/css" >
#rectBox
{
Background: #CCFFFF;
border:2px solid #0099FF;
Filter:alpha (opacity=30);
opacity:0.3;
Position:absolute;
}
</style>
<title> a mouse selection box </title>
<script type= "Text/javascript" >
function Rect ()
{
This.doc = document.documentelement;
if (!this.doc) return;
This.startx = ";
This.starty = ";
This.rect = null;
Rectself = this;
}
Rect.prototype.down = function (e)
{
var e = e?e:window.event;
Rectself.startx = E.clientx?e.clientx + Document.body.scrollleft:e.pagex;
Rectself.starty = E.clienty?e.clienty + document.body.scrolltop:e.pagey;
Rectself.showrect (TRUE);
}
Rect.prototype.up = function (e)
{
RectSelf.rectBox.style.width = ' 0px ';
RectSelf.rectBox.style.height = ' 0px ';
Rectself.showrect (FALSE);
}
Rect.prototype.move = function (e)
{
if (Rectself.rectbox)
{
var CurrentX = E.clientx?e.clientx + Rectself.doc.scrollleft:e.pagex;
var currenty = E.clienty?e.clienty + rectself.doc.scrolltop:e.pagey;
RectSelf.rectBox.style.width = Math.Abs (currentx-rectself.startx) + ' px ';
RectSelf.rectBox.style.height = Math.Abs (currenty-rectself.starty) + ' px ';
if (Currentx-rectself.startx < 0)
{
RectSelf.rectBox.style.left = CurrentX + ' px ';
}
if (Currenty-rectself.starty < 0)
{
RectSelf.rectBox.style.top = currenty + ' px ';
}
Document.title = "Left:" +currentx + ' px ' + "top:" +currenty + ' px ';
}
}
Rect.prototype.showRect = function (bool)
{
if (BOOL)
{
if (!this.rectbox)
{
This.rectbox = document.createelement ("div");
This.rectBox.id = "Rectbox";
Document.body.appendChild (This.rectbox);
}
This.rectBox.style.display = "block";
This.rectBox.style.left = this.startx + ' px ';
This.rectBox.style.top = this.starty + ' px ';
This.addeventlistener (This.doc, ' MouseMove ', this.move);
}
Else
{
if (This.rectbox)
{
This.rectBox.style.display = "None";
}
This.removeeventlistener (This.doc, ' MouseMove ', this.move);
}
}
Rect.prototype.addEventListener = function (o,e,l)
{
if (O.addeventlistener) {
O.addeventlistener (E,l,false);
} else if (o.attachevent) {
O.attachevent (' on ' +e,function () {
L (window.event);
});
}
}
Rect.prototype.removeEventListener = function (o,e,l)
{
if (O.removeeventlistener) {
O.removeeventlistener (E,l,false);
} else if (o.detachevent) {
O.detachevent (' on ' +e,function () {
L (window.event);
});
}
}
Window.onload = function ()
{
var orect = new Rect ();
Orect.addeventlistener (Orect.doc, ' MouseDown ', orect.down);
Orect.addeventlistener (Orect.doc, ' MouseUp ', orect.up);
}
</script>
<body>
<div>http://www.999jiujiu.com/</div>
</body>

Light blue mouse Drag selection box

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

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