https://oazis-spb.ru/g/libs/jquery-maskedinput/1.3.1/jquery.maskedinput.js

1/*
2	Masked Input plugin for jQuery
3	Copyright (c) 2007-2013 Josh Bush (digitalbush.com)
4	Licensed under the MIT license (http://digitalbush.com/projects/masked-input-plugin/#license)
5	Version: 1.3.1
6*/
7(function($) {
8	function getPasteEvent() {
9    var el = document.createElement('input'),
10        name = 'onpaste';
11    el.setAttribute(name, '');
12    return (typeof el[name] === 'function')?'paste':'input';             
13}
14
15var pasteEventName = getPasteEvent() + ".mask",
16	ua = navigator.userAgent,
17	iPhone = /iphone/i.test(ua),
18	android=/android/i.test(ua),
19	caretTimeoutId;
20
21$.mask = {
22	//Predefined character definitions
23	definitions: {
24		'9': "[0-9]",
25		'a': "[A-Za-z]",
26		'*': "[A-Za-z0-9]"
27	},
28	dataName: "rawMaskFn",
29	placeholder: '_',
30};
31
32$.fn.extend({
33	//Helper Function for Caret positioning
34	caret: function(begin, end) {
35		var range;
36
37		if (this.length === 0 || this.is(":hidden")) {
38			return;
39		}
40
41		if (typeof begin == 'number') {
42			end = (typeof end === 'number') ? end : begin;
43			return this.each(function() {
44				if (this.setSelectionRange) {
45					this.setSelectionRange(begin, end);
46				} else if (this.createTextRange) {
47					range = this.createTextRange();
48					range.collapse(true);
49					range.moveEnd('character', end);
50					range.moveStart('character', begin);
51					range.select();
52				}
53			});
54		} else {
55			if (this[0].setSelectionRange) {
56				begin = this[0].selectionStart;
57				end = this[0].selectionEnd;
58			} else if (document.selection && document.selection.createRange) {
59				range = document.selection.createRange();
60				begin = 0 - range.duplicate().moveStart('character', -100000);
61				end = begin + range.text.length;
62			}
63			return { begin: begin, end: end };
64		}
65	},
66	unmask: function() {
67		return this.trigger("unmask");
68	},
69	mask: function(mask, settings) {
70		var input,
71			defs,
72			tests,
73			partialPosition,
74			firstNonMaskPos,
75			len;
76
77		if (!mask && this.length > 0) {
78			input = $(this[0]);
79			return input.data($.mask.dataName)();
80		}
81		settings = $.extend({
82			placeholder: $.mask.placeholder, // Load default placeholder
83			completed: null
84		}, settings);
85
86
87		defs = $.mask.definitions;
88		tests = [];
89		partialPosition = len = mask.length;
90		firstNonMaskPos = null;
91
92		$.each(mask.split(""), function(i, c) {
93			if (c == '?') {
94				len--;
95				partialPosition = i;
96			} else if (defs[c]) {
97				tests.push(new RegExp(defs[c]));
98				if (firstNonMaskPos === null) {
99					firstNonMaskPos = tests.length - 1;
100				}
101			} else {
102				tests.push(null);
103			}
104		});
105
106		return this.trigger("unmask").each(function() {
107			var input = $(this),
108				buffer = $.map(
109				mask.split(""),
110				function(c, i) {
111					if (c != '?') {
112						return defs[c] ? settings.placeholder : c;
113					}
114				}),
115				focusText = input.val();
116
117			function seekNext(pos) {
118				while (++pos < len && !tests[pos]);
119				return pos;
120			}
121
122			function seekPrev(pos) {
123				while (--pos >= 0 && !tests[pos]);
124				return pos;
125			}
126
127			function shiftL(begin,end) {
128				var i,
129					j;
130
131				if (begin<0) {
132					return;
133				}
134
135				for (i = begin, j = seekNext(end); i < len; i++) {
136					if (tests[i]) {
137						if (j < len && tests[i].test(buffer[j])) {
138							buffer[i] = buffer[j];
139							buffer[j] = settings.placeholder;
140						} else {
141							break;
142						}
143
144						j = seekNext(j);
145					}
146				}
147				writeBuffer();
148				input.caret(Math.max(firstNonMaskPos, begin));
149			}
150
151			function shiftR(pos) {
152				var i,
153					c,
154					j,
155					t;
156
157				for (i = pos, c = settings.placeholder; i < len; i++) {
158					if (tests[i]) {
159						j = seekNext(i);
160						t = buffer[i];
161						buffer[i] = c;
162						if (j < len && tests[j].test(t)) {
163							c = t;
164						} else {
165							break;
166						}
167					}
168				}
169			}
170
171			function keydownEvent(e) {
172				var k = e.which,
173					pos,
174					begin,
175					end;
176
177				//backspace, delete, and escape get special treatment
178				if (k === 8 || k === 46 || (iPhone && k === 127)) {
179					pos = input.caret();
180					begin = pos.begin;
181					end = pos.end;
182
183					if (end - begin === 0) {
184						begin=k!==46?seekPrev(begin):(end=seekNext(begin-1));
185						end=k===46?seekNext(end):end;
186					}
187					clearBuffer(begin, end);
188					shiftL(begin, end - 1);
189
190					e.preventDefault();
191				} else if (k == 27) {//escape
192					input.val(focusText);
193					input.caret(0, checkVal());
194					e.preventDefault();
195				}
196			}
197
198			function keypressEvent(e) {
199				var k = e.which,
200					pos = input.caret(),
201					p,
202					c,
203					next;
204
205				if (e.ctrlKey || e.altKey || e.metaKey || k < 32) {//Ignore
206					return;
207				} else if (k) {
208					if (pos.end - pos.begin !== 0){
209						clearBuffer(pos.begin, pos.end);
210						shiftL(pos.begin, pos.end-1);
211					}
212
213					p = seekNext(pos.begin - 1);
214					if (p < len) {
215						c = String.fromCharCode(k);
216						if (tests[p].test(c)) {
217							shiftR(p);
218
219							buffer[p] = c;
220							writeBuffer();
221							next = seekNext(p);
222
223							if(android){
224								setTimeout($.proxy($.fn.caret,input,next),0);
225							}else{
226								input.caret(next);
227							}
228
229							if (settings.completed && next >= len) {
230								settings.completed.call(input);
231							}
232						}
233					}
234					e.preventDefault();
235				}
236			}
237
238			function clearBuffer(start, end) {
239				var i;
240				for (i = start; i < end && i < len; i++) {
241					if (tests[i]) {
242						buffer[i] = settings.placeholder;
243					}
244				}
245			}
246
247			function writeBuffer() { input.val(buffer.join('')); }
248
249			function checkVal(allow) {
250				//try to place characters where they belong
251				var test = input.val(),
252					lastMatch = -1,
253					i,
254					c;
255
256				for (i = 0, pos = 0; i < len; i++) {
257					if (tests[i]) {
258						buffer[i] = settings.placeholder;
259						while (pos++ < test.length) {
260							c = test.charAt(pos - 1);
261							if (tests[i].test(c)) {
262								buffer[i] = c;
263								lastMatch = i;
264								break;
265							}
266						}
267						if (pos > test.length) {
268							break;
269						}
270					} else if (buffer[i] === test.charAt(pos) && i !== partialPosition) {
271						pos++;
272						lastMatch = i;
273					}
274				}
275				if (allow) {
276					writeBuffer();
277				} else if (lastMatch + 1 < partialPosition) {
278					input.val("");
279					clearBuffer(0, len);
280				} else {
281					writeBuffer();
282					input.val(input.val().substring(0, lastMatch + 1));
283				}
284				return (partialPosition ? i : firstNonMaskPos);
285			}
286
287			input.data($.mask.dataName,function(){
288				return $.map(buffer, function(c, i) {
289					return tests[i]&&c!=settings.placeholder ? c : null;
290				}).join('');
291			});
292
293			if (!input.attr("readonly"))
294				input
295				.one("unmask", function() {
296					input
297						.unbind(".mask")
298						.removeData($.mask.dataName);
299				})
300				.bind("focus.mask", function() {
301					clearTimeout(caretTimeoutId);
302					var pos,

303						moveCaret;
304
305					focusText = input.val();
306					pos = checkVal();
307					
308					caretTimeoutId = setTimeout(function(){
309						writeBuffer();
310						if (pos == mask.length) {
311							input.caret(0, pos);
312						} else {
313							input.caret(pos);
314						}
315					}, 10);
316				})
317				.bind("blur.mask", function() {
318					checkVal();
319					if (input.val() != focusText)
320						input.change();
321				})
322				.bind("keydown.mask", keydownEvent)
323				.bind("keypress.mask", keypressEvent)
324				.bind(pasteEventName, function() {
325					setTimeout(function() { 
326						var pos=checkVal(true);
327						input.caret(pos); 
328						if (settings.completed && pos == input.val().length)
329							settings.completed.call(input);
330					}, 0);
331				});
332			checkVal(); //Perform initial check for existing values
333		});
334	}
335});
336
337
338})(jQuery);