This article describes the mouse drag animated rectangle box implemented by jQuery. Share it for your reference, as follows:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http:///TR/xhtml1/DTD/">
<html xmlns="http:///1999/xhtml" xml:lang="zh" lang="zh">
<head>
<title>Mouse drag animated rectangle</title>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<script src="/jquery/2.0.0/"></script>
<style type="text/css">
body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, dl, dt, dd, ul, ol, li, pre, form, fieldset, legend, button, input, textarea, th, td {margin: 0;padding: 0}
html {color: #000;overflow-y: scoll;overflow: -moz-scrollbars-vertical}
#confirmingAppraisal {
position: relative;
left: 0;
top: 0;
margin: 0 auto;
padding: 0;
width: 800px;
min-height: 800px;
overflow: auto;
height: 1000px;
background-color: #e9e9e9;
}
.dashed-box {position: absolute;z-index: 9997; border: 1px dashed red; width: 0px; height: 0px;left: 0px; top: 0px; overflow: hidden;}
#moving_box {background-color: #0A90DB;}
.question-box {
position: absolute;
z-index: 9998;
/*background: red;*/
/* older safari/Chrome browsers */
-webkit-opacity: 0.8;
/* Netscape and Older than Firefox 0.9 */
-moz-opacity: 0.8;
/* Safari (pre WebKit!) Safari browser with old khtml kernel*/
-khtml-opacity: 0.8;
/* IE9 + etc...modern browsers */
opacity: .8;
/* IE 4-9 */
filter: alpha(opacity=80);
/*This works in IE 8 & 9 too*/
-ms-filter: "progid:(Opacity=80)";
/*IE4-IE9*/
filter: progid:(Opacity=80);
}
.question-border {z-index: 9999;border: 2px dashed red;overflow: hidden; }
.del-box {
width: 17px;
height: 17px;
float: right;
position: relative;
margin-top: 1px;
margin-right: 1px;
z-index: 99999999999;
background: url();
}
</style>
<script language="javascript">
= function() {
function stopDefault(e) {
if(e && )
();
else
= false;
return false;
}
function oBox() {
var wId = "w";
var index = 0;
var target = null;
var startX = 0, startY = 0;
var flag = false;
var startL = 0, startT = 0, boxHeight = 0, boxWidth = 0;
var boxObj = ("confirmingAppraisal");
var frame = $("#confirmingAppraisal");
var referenceSize = {
"pos": (),
"width": (),
"height": ()
}
var newMarkPos = {
"left": startL,/////The distance to the left of the mouse when pressed "top": startT/////The distance above the mouse distance when pressed }
//Mouse click = function(e) {
flag = true;
var e = || e;
target = || ; //Get a reference to the document object //,compatible if() {
stopDefault(e)
}
var scrollTop = ;
var scrollLeft = ;
var ePageX = + scrollLeft;
var ePageY = + scrollTop;
//The distance from the page when pressed startX = ePageX;
startY = ePageY;
//The distance between the left and upper mouse distance when pressed startL = startX - ;
startT = startY - ;
index++;
// If the mouse is pressed on the box if((/del-box/i)) {
// Allow drag flag = false;
// Set the id of the current box to moving_box var movingBox = ("moving_box")
if(movingBox !== null) {
("id");
}
= "moving_box";
removeBox(target);
} else {
var div = ("div");
= wId + index;
= "dashed-box";
(div);
div = null;
}
}
// Mouse leave = function(e) {
var e = || e;
if(boxWidth >= 1 || boxHeight >= 1) {
(dragBox(wId + index));
index++;
var div = ("div");
var spanObj = ("span");
= 'del-box';
(spanObj);
= "question-box question-border";
= + "px";
= + "px";
= boxWidth + "px";
= boxHeight + "px";
(div);
div = null;
boxWidth = 0;
boxHeight = 0;
} else {
if(flag) {
(dragBox(wId + index));
}
}
flag = false;
}
//Mouse Move = function(e) {
var e = || e;
stopDefault(e)
if(flag) {
var scrollTop = ;
var scrollLeft = ;
var ePX = + scrollLeft;
var ePY = + scrollTop;
var disW = ePX - startX;
var disH = ePY - startY;
var L = startL + disW;
var T = startT + disH;
if(disW > 0) {
if(L >= 0) {
boxWidth = disW
}
= startL;
} else {
if(L <= 0) {
L = 0;
boxWidth = startL;
}
boxWidth = (startL - L);
= L;
}
if(disH > 0) {
if(T >= 0) {
boxHeight = disH
}
= startT;
} else {
if(T <= 0) {
T = 0;
boxHeight = startT;
}
boxHeight = (startT - T)
= T;
}
dragBox(wId + index). = + "px";
dragBox(wId + index). = + "px";
dragBox(wId + index). = (boxWidth) + "px";
dragBox(wId + index). = (boxHeight) + "px";
stopDefault(e)
}
}
var dragBox = function(id) {
return (id);
}
};
oBox();
function removeBox(obj) {
if(obj) {
var confirmingAppraisal = ('confirmingAppraisal');
if( == 'del-box') {
var objId = ();
();
} else {
alert(123)
}
}
};
}
</script>
</head>
<body style="overflow: hidden">
<div class="confirming-appraisal">
<div >
<img src="" style="position: absolute;width: 1000px;height: 1600px;">
</div>
</div>
</body>
</html>
Interested friends can use the following tools to test the above code running effect:
Online HTML/CSS/JavaScript code running tools:
http://tools./code/HtmlJsRun
Online HTML/CSS/JavaScript front-end code debugging and running tools:
http://tools./code/WebCodeRun
For more information about jQuery, you can also view the topic of this site: "Summary of jQuery animation and special effects usage》、《Summary of jQuery switching effects and skills》、《Summary of jQuery extension skills》、《Summary of commonly used plug-ins and usages of jQuery》、《Summary of jQuery drag and drop special effects and skills》、《Summary of jQuery table operation skills》、《Summary of common classic effects of jQuery"and"Summary of jquery selector usage》
I hope this article will be helpful to everyone's jQuery programming.