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jquery.keyfilter.js
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jquery.keyfilter.js
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/*
* This plugin filters keyboard input by specified regular expression.
* Version 1.8
* $Id$
*
* Source code inspired by Ext.JS (Ext.form.TextField, Ext.EventManager)
*
* Procedural style:
* $('#ggg').keyfilter(/[\dA-F]/);
* Also you can pass test function instead of regexp. Its arguments:
* this - HTML DOM Element (event target).
* c - String that contains incoming character.
* $('#ggg').keyfilter(function(c) { return c != 'a'; });
*
* Class style:
* <input type="text" class="mask-num" />
*
* Available classes:
* mask-pint: /[\d]/
* mask-int: /[\d\-]/
* mask-pnum: /[\d\.]/
* mask-money /[\d\.\s,]/
* mask-num: /[\d\-\.]/
* mask-hex: /[0-9a-f]/i
* mask-email: /[a-z0-9_\.\-@]/i
* mask-alpha: /[a-z_]/i
* mask-alphanum: /[a-z0-9_]/i
*/
(function($)
{
// $.browser fallback for jQuery 1.9+.
if ($.browser === undefined) {
$.browser = (function () {
var ua_match = function (ua) {
ua = ua.toLowerCase();
var match = /(chrome)[ \/]([\w.]+)/.exec(ua) ||
/(webkit)[ \/]([\w.]+)/.exec(ua) ||
/(opera)(?:.*version|)[ \/]([\w.]+)/.exec(ua) ||
/(msie) ([\w.]+)/.exec(ua) ||
ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec(ua) ||
[];
return { browser:match[ 1 ] || "", version:match[ 2 ] || "0" };
},
matched = ua_match(navigator.userAgent),
browser = {};
if (matched.browser) {
browser[ matched.browser ] = true;
browser.version = matched.version;
}
if (browser.chrome) {
browser.webkit = true;
} else if (browser.webkit) {
browser.safari = true;
}
return browser;
})();
}
var defaultMasks = {
pint: /[\d]/,
'int': /[\d\-]/,
pnum: /[\d\.]/,
money: /[\d\.\s,]/,
num: /[\d\-\.]/,
hex: /[0-9a-f]/i,
email: /[a-z0-9_\.\-@]/i,
alpha: /[a-z_]/i,
alphanum: /[a-z0-9_]/i
};
var Keys = {
TAB: 9,
RETURN: 13,
ESC: 27,
BACKSPACE: 8,
DELETE: 46
};
// safari keypress events for special keys return bad keycodes
var SafariKeys = {
63234 : 37, // left
63235 : 39, // right
63232 : 38, // up
63233 : 40, // down
63276 : 33, // page up
63277 : 34, // page down
63272 : 46, // delete
63273 : 36, // home
63275 : 35 // end
};
var isNavKeyPress = function(e)
{
var k = e.keyCode;
k = $.browser.safari ? (SafariKeys[k] || k) : k;
return (k >= 33 && k <= 40) || k == Keys.RETURN || k == Keys.TAB || k == Keys.ESC;
};
var isSpecialKey = function(e)
{
var k = e.keyCode;
var c = e.charCode;
return k == 9 || k == 13 || k == 27 ||
k == 16 || k == 17 ||
(k >= 18 && k <= 20) ||
($.browser.opera && !e.shiftKey && (k == 8 || (k >= 33 && k <= 35) || (k >= 36 && k <= 39) || (k >= 44 && k <= 45)))
;
};
/**
* Returns a normalized keyCode for the event.
* @return {Number} The key code
*/
var getKey = function(e)
{
var k = e.keyCode || e.charCode;
return $.browser.safari ? (SafariKeys[k] || k) : k;
};
var getCharCode = function(e)
{
return e.charCode || e.keyCode || e.which;
};
$.fn.keyfilter = function(re)
{
return this.on('keypress',function(e)
{
if (e.ctrlKey || e.altKey)
{
return;
}
var k = getKey(e);
if($.browser.mozilla && (isNavKeyPress(e) || k == Keys.BACKSPACE || (k == Keys.DELETE && e.charCode == 0)))
{
return;
}
var c = getCharCode(e), cc = String.fromCharCode(c), ok = true;
if(!$.browser.mozilla && (isSpecialKey(e) || !cc))
{
return;
}
if ($.isFunction(re))
{
ok = re.call(this, cc);
}
else
{
ok = re.test(cc);
}
if(!ok)
{
e.preventDefault();
}
});
};
$.extend($.fn.keyfilter, {
defaults: {
masks: defaultMasks
},
version: 1.7
});
$(document).ready(function()
{
var tags = $('input[class*=mask],textarea[class*=mask]');
for (var key in $.fn.keyfilter.defaults.masks)
{
tags.filter('.mask-' + key).keyfilter($.fn.keyfilter.defaults.masks[key]);
}
});
})(jQuery);