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/**
* jQuery Guid v1.0.0-1
* Requires jQuery 1.2.6+ (Not tested with earlier versions).
* Copyright (c) 2010 Aaron E. [jquery at happinessinmycheeks dot com]
* Licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
* Usage:
* jQuery.Guid.Value() // Returns value of internal Guid. If no guid has been specified, returns a new one (value is then stored internally).
* jQuery.Guid.New() // Returns a new Guid and sets it's value internally. Also accepts GUID, Sets it internally.
* jQuery.Guid.Empty() // Returns an empty Guid 00000000-0000-0000-0000-000000000000.
* jQuery.Guid.IsEmpty() // Returns boolean. True if empty/undefined/blank/null.
* jQuery.Guid.IsValid() // Returns boolean. True valid guid, false if not.
* jQuery.Guid.Set() // Retrns Guid. Sets Guid to user specified Guid, if invalid, returns an empty guid.
*
*/
jQuery.extend({
Guid: {
Set: function(val) {
var value;
if (arguments.length == 1) {
if (this.IsValid(arguments[0])) {
value = arguments[0];
} else {
value = this.Empty();
}
}
$(this).data("value", value);
return value;
},
Empty: function() {
return "00000000-0000-0000-0000-000000000000";
},
IsEmpty: function(gid) {
return gid == this.Empty() || typeof (gid) == 'undefined' || gid == null || gid == '';
},
IsValid: function(value) {
rGx = new RegExp("\\b(?:[A-F0-9]{8})(?:-[A-F0-9]{4}){3}-(?:[A-F0-9]{12})\\b");
return rGx.exec(value) != null;
},
New: function() {
if (arguments.length == 1 && this.IsValid(arguments[0])) {
$(this).data("value", arguments[0]);
value = arguments[0];
return value;
}
var res = [], hv;
var rgx = new RegExp("[2345]");
for (var i = 0; i < 8; i++) {
hv = (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1);
if (rgx.exec(i.toString()) != null) {
if (i == 3) { hv = "6" + hv.substr(1, 3); }
res.push("-");
}
res.push(hv.toUpperCase());
}
value = res.join('');
$(this).data("value", value);
return value;
},
Value: function() {
if ($(this).data("value")) {
return $(this).data("value");
}
var val = this.New();
$(this).data("value", val);
return val;
}
}
})();
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