https://vumk.net/js/jquery.maskedinput-1.2.2.js

1/// <reference path="../../../lib/jquery-1.2.6.js" />
2/*
3	Masked Input plugin for jQuery
4	Copyright (c) 2007-2009 Josh Bush (digitalbush.com)
5	Licensed under the MIT license (http://digitalbush.com/projects/masked-input-plugin/#license) 
6	Version: 1.2.2 (03/09/2009 22:39:06)
7*/
8(function($) {
9	var pasteEventName = ($.browser.msie ? 'paste' : 'input') + ".mask";
10	var iPhone = (window.orientation != undefined);
11
12	$.mask = {
13		//Predefined character definitions
14		definitions: {
15			'9': "[0-9]",
16			'a': "[A-Za-z]",
17			'*': "[A-Za-z0-9]"
18		}
19	};
20
21	$.fn.extend({
22		//Helper Function for Caret positioning
23		caret: function(begin, end) {
24			if (this.length == 0) return;
25			if (typeof begin == 'number') {
26				end = (typeof end == 'number') ? end : begin;
27				return this.each(function() {
28					if (this.setSelectionRange) {
29						this.focus();
30						this.setSelectionRange(begin, end);
31					} else if (this.createTextRange) {
32						var range = this.createTextRange();
33						range.collapse(true);
34						range.moveEnd('character', end);
35						range.moveStart('character', begin);
36						range.select();
37					}
38				});
39			} else {
40				if (this[0].setSelectionRange) {
41					begin = this[0].selectionStart;
42					end = this[0].selectionEnd;
43				} else if (document.selection && document.selection.createRange) {
44					var range = document.selection.createRange();
45					begin = 0 - range.duplicate().moveStart('character', -100000);
46					end = begin + range.text.length;
47				}
48				return { begin: begin, end: end };
49			}
50		},
51		unmask: function() { return this.trigger("unmask"); },
52		mask: function(mask, settings) {
53			if (!mask && this.length > 0) {
54				var input = $(this[0]);
55				var tests = input.data("tests");
56				return $.map(input.data("buffer"), function(c, i) {
57					return tests[i] ? c : null;
58				}).join('');
59			}
60			settings = $.extend({
61				placeholder: "_",
62				completed: null
63			}, settings);
64
65			var defs = $.mask.definitions;
66			var tests = [];
67			var partialPosition = mask.length;
68			var firstNonMaskPos = null;
69			var len = mask.length;
70
71			$.each(mask.split(""), function(i, c) {
72				if (c == '?') {
73					len--;
74					partialPosition = i;
75				} else if (defs[c]) {
76					tests.push(new RegExp(defs[c]));
77					if(firstNonMaskPos==null)
78						firstNonMaskPos =  tests.length - 1;
79				} else {
80					tests.push(null);
81				}
82			});
83
84			return this.each(function() {
85				var input = $(this);
86				var buffer = $.map(mask.split(""), function(c, i) { if (c != '?') return defs[c] ? settings.placeholder : c });
87				var ignore = false;  			//Variable for ignoring control keys
88				var focusText = input.val();
89
90				input.data("buffer", buffer).data("tests", tests);
91
92				function seekNext(pos) {
93					while (++pos <= len && !tests[pos]);
94					return pos;
95				};
96
97				function shiftL(pos) {
98					while (!tests[pos] && --pos >= 0);
99					for (var i = pos; i < len; i++) {
100						if (tests[i]) {
101							buffer[i] = settings.placeholder;
102							var j = seekNext(i);
103							if (j < len && tests[i].test(buffer[j])) {
104								buffer[i] = buffer[j];
105							} else
106								break;
107						}
108					}
109					writeBuffer();
110					input.caret(Math.max(firstNonMaskPos, pos));
111				};
112
113				function shiftR(pos) {
114					for (var i = pos, c = settings.placeholder; i < len; i++) {
115						if (tests[i]) {
116							var j = seekNext(i);
117							var t = buffer[i];
118							buffer[i] = c;
119							if (j < len && tests[j].test(t))
120								c = t;
121							else
122								break;
123						}
124					}
125				};
126
127				function keydownEvent(e) {
128					var pos = $(this).caret();
129					var k = e.keyCode;
130					ignore = (k < 16 || (k > 16 && k < 32) || (k > 32 && k < 41));
131
132					//delete selection before proceeding
133					if ((pos.begin - pos.end) != 0 && (!ignore || k == 8 || k == 46))
134						clearBuffer(pos.begin, pos.end);
135
136					//backspace, delete, and escape get special treatment
137					if (k == 8 || k == 46 || (iPhone && k == 127)) {//backspace/delete
138						shiftL(pos.begin + (k == 46 ? 0 : -1));
139						return false;
140					} else if (k == 27) {//escape
141						input.val(focusText);
142						input.caret(0, checkVal());
143						return false;
144					}
145				};
146
147				function keypressEvent(e) {
148					if (ignore) {
149						ignore = false;

150						//Fixes Mac FF bug on backspace
151						return (e.keyCode == 8) ? false : null;
152					}
153					e = e || window.event;
154					var k = e.charCode || e.keyCode || e.which;
155					var pos = $(this).caret();
156
157					if (e.ctrlKey || e.altKey || e.metaKey) {//Ignore
158						return true;
159					} else if ((k >= 32 && k <= 125) || k > 186) {//typeable characters
160						var p = seekNext(pos.begin - 1);
161						if (p < len) {
162							var c = String.fromCharCode(k);
163							if (tests[p].test(c)) {
164								shiftR(p);
165								buffer[p] = c;
166								writeBuffer();
167								var next = seekNext(p);
168								$(this).caret(next);
169								if (settings.completed && next == len)
170									settings.completed.call(input);
171							}
172						}
173					}
174					return false;
175				};
176
177				function clearBuffer(start, end) {
178					for (var i = start; i < end && i < len; i++) {
179						if (tests[i])
180							buffer[i] = settings.placeholder;
181					}
182				};
183
184				function writeBuffer() { return input.val(buffer.join('')).val(); };
185
186				function checkVal(allow) {
187					//try to place characters where they belong
188					var test = input.val();
189					var lastMatch = -1;
190					for (var i = 0, pos = 0; i < len; i++) {
191						if (tests[i]) {
192							buffer[i] = settings.placeholder;
193							while (pos++ < test.length) {
194								var c = test.charAt(pos - 1);
195								if (tests[i].test(c)) {
196									buffer[i] = c;
197									lastMatch = i;
198									break;
199								}
200							}
201							if (pos > test.length)
202								break;
203						} else if (buffer[i] == test[pos] && i!=partialPosition) {
204							pos++;
205							lastMatch = i;
206						} 
207					}
208					if (!allow && lastMatch + 1 < partialPosition) {
209						input.val("");
210						clearBuffer(0, len);
211					} else if (allow || lastMatch + 1 >= partialPosition) {
212						writeBuffer();
213						if (!allow) input.val(input.val().substring(0, lastMatch + 1));
214					}
215					return (partialPosition ? i : firstNonMaskPos);
216				};
217
218				if (!input.attr("readonly"))
219					input
220					.one("unmask", function() {
221						input
222							.unbind(".mask")
223							.removeData("buffer")
224							.removeData("tests");
225					})
226					.bind("focus.mask", function() {
227						focusText = input.val();
228						var pos = checkVal();
229						writeBuffer();
230						setTimeout(function() {
231							if (pos == mask.length)
232								input.caret(0, pos);
233							else
234								input.caret(pos);
235						}, 0);
236					})
237					.bind("blur.mask", function() {
238						checkVal();
239						if (input.val() != focusText)
240							input.change();
241					})
242					.bind("keydown.mask", keydownEvent)
243					.bind("keypress.mask", keypressEvent)
244					.bind(pasteEventName, function() {
245						setTimeout(function() { input.caret(checkVal(true)); }, 0);
246					});
247
248				checkVal(); //Perform initial check for existing values
249			});
250		}
251	});
252})(jQuery);