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ngopal/index.html

Created January 28, 2015 22:42
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Example// source http://jsbin.com/filiwekotu Mouse tracking on webpage using JS, found through: http://stackoverflow.com/questions/7790725/javascript-track-mouse-position
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Example</title>
<style>
body {
height: 3000px;
}
.dot {
width: 2px;
height: 2px;
background-color: black;
position: absolute;
}
</style>
</head>
<body>
<script>
(function() {
"use strict";
document.onmousemove = handleMouseMove;
function handleMouseMove(event) {
var dot, eventDoc, doc, body, pageX, pageY;
event = event || window.event; // IE-ism
// If pageX/Y aren't available and clientX/Y
// are, calculate pageX/Y - logic taken from jQuery
// Calculate pageX/Y if missing and clientX/Y available
if (event.pageX == null && event.clientX != null) {
eventDoc = (event.target && event.target.ownerDocument) || document;
doc = eventDoc.documentElement;
body = eventDoc.body;
event.pageX = event.clientX +
(doc && doc.scrollLeft || body && body.scrollLeft || 0) -
(doc && doc.clientLeft || body && body.clientLeft || 0);
event.pageY = event.clientY +
(doc && doc.scrollTop || body && body.scrollTop || 0) -
(doc && doc.clientTop || body && body.clientTop || 0 );
}
// Add a dot to follow the cursor
dot = document.createElement('div');
dot.className = "dot";
dot.style.left = event.pageX + "px";
dot.style.top = event.pageY + "px";
document.body.appendChild(dot);
}
})();
</script>
</body>
</html>
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