Introduction
I enjoy using Windows 8 and I see that there is a cool password text box, so I love to have copied one for web platform, using JavaScript and HTML.
Using the Code
To enable eye tool for any password text box, we just call this code when the document was ready
utils.pwdEye(elementId, width, height, marginRight);
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Windows 8 style password text box</title>
<style type="text/css">
input.pwdTxt[type=text], input.pwdTxt[type=password], .pwdTxt
{
font-size: 12px;
width: 160px;
padding: 2px;
margin: 2px;
vertical-align: middle;
font-family: sans-serif;
}
</style>
</head>
<body>
<h3>Type your password here</h3>
<div style="line-height: 23px">
<label for="password">Password </label>
<input id="password" class="pwdTxt"
type="password" maxlength="40" />
</div>
<script type="text/javascript">
var utils = {
findPos: function (obj) {
var curleft = curtop = 0;
if (obj.offsetParent) {
do {
curleft += obj.offsetLeft;
curtop += obj.offsetTop;
} while (obj = obj.offsetParent);
}
return [curleft, curtop];
},
pwdEye: function (id, w, h, marginRight) {
// Detect IE version
var ie = (function () {
var undef, v = 3, div = document.createElement(
while (
div.innerHTML = div.getElementsByTagName( );
return v > 4 ? v : undef;
} ());
// Check password element
var pwdTxt = document.getElementById(id);
if (!pwdTxt) {
return;
}
// Right edge
if (!marginRight) {
marginRight = 0;
}
// Get width and height of password text box to insert eye icon
var width = pwdTxt.clientWidth;
var height = pwdTxt.clientHeight;
if (width == 0 && height == 0) { // For old IE
width = pwdTxt.offsetWidth;
height = pwdTxt.offsetHeight;
}
// Get position of password text box
var pos = utils.findPos(pwdTxt);
// Create eye icon
var img = document.createElement("IMG");
// So sorry iconfinder
img.src = img.style.left = (pos[0] + width - w - marginRight) + img.style.top = (pos[1] + (height - h) / 2 + 1) + img.style.position = img.style.cursor = img.style.width = w + img.style.height = h + img.style.display =
// Handle visible status of eye icon
pwdTxt.onkeyup = function () {
if (this.value != img.style.display = }
else {
img.style.display = if (ie >= 10) {
this.setAttribute("type", "password");
}
}
}
// For some old IE version, we need to create a mask text box
var pwdTxtMask = null;
if (ie < 10) { // Need to create a mask text box
pwdTxtMask = document.createElement("INPUT");
pwdTxtMask.setAttribute("type", "text");
pwdTxtMask.maxLength = pwdTxt.maxLength;
pwdTxtMask.style.display = pwdTxtMask.className = pwdTxt.className;
// Append mask text box
pwdTxt.parentNode.insertBefore(pwdTxtMask, pwdTxt);
// Auto-copy value from password text box
pwdTxt.onchange = function (e) {
pwdTxtMask.value = this.value;
}
}
// Append eye icon
pwdTxt.parentNode.appendChild(img);
// Handle event
img.onmousedown = img.ontouchstart = function (event) {
if (ie < 10) {
pwdTxt.style.display = pwdTxtMask.style.display = }
else {
pwdTxt.setAttribute("type", "text");
}
return utils.absorbEvent(event);
}
img.onmouseup = img.onmouseout = img.ontouchend = function (event) {
if (ie < 10) {
pwdTxt.style.display = pwdTxtMask.style.display = }
else {
pwdTxt.setAttribute("type", "password");
}
return utils.absorbEvent(event);
}
return img;
},
absorbEvent: function (event) {
var e = event || window.event;
e.preventDefault && e.preventDefault();
e.stopPropagation && e.stopPropagation();
e.cancelBubble = true;
e.returnValue = false;
return false;
}
}
// Apply password eye for element with id utils.pwdEye( </script>
</body>
</html>
