https://chebnovosti.ru/UserControls/js/jquery.maskedinput.js

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

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