338 lines
7.3 KiB
JavaScript
338 lines
7.3 KiB
JavaScript
/*
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Masked Input plugin for jQuery
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Copyright (c) 2007-2013 Josh Bush (digitalbush.com)
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Licensed under the MIT license (http://digitalbush.com/projects/masked-input-plugin/#license)
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Version: 1.3.1
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*/
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(function($) {
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function getPasteEvent() {
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var el = document.createElement('input'),
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name = 'onpaste';
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el.setAttribute(name, '');
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return (typeof el[name] === 'function')?'paste':'input';
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}
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var pasteEventName = getPasteEvent() + ".mask",
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ua = navigator.userAgent,
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iPhone = /iphone/i.test(ua),
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android=/android/i.test(ua),
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caretTimeoutId;
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$.mask = {
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//Predefined character definitions
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definitions: {
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'9': "[0-9]",
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'a': "[A-Za-z]",
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'*': "[A-Za-z0-9]"
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},
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dataName: "rawMaskFn",
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placeholder: '_',
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};
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$.fn.extend({
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//Helper Function for Caret positioning
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caret: function(begin, end) {
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var range;
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if (this.length === 0 || this.is(":hidden")) {
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return;
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}
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if (typeof begin == 'number') {
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end = (typeof end === 'number') ? end : begin;
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return this.each(function() {
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if (this.setSelectionRange) {
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this.setSelectionRange(begin, end);
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} else if (this.createTextRange) {
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range = this.createTextRange();
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range.collapse(true);
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range.moveEnd('character', end);
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range.moveStart('character', begin);
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range.select();
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}
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});
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} else {
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if (this[0].setSelectionRange) {
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begin = this[0].selectionStart;
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end = this[0].selectionEnd;
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} else if (document.selection && document.selection.createRange) {
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range = document.selection.createRange();
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begin = 0 - range.duplicate().moveStart('character', -100000);
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end = begin + range.text.length;
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}
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return { begin: begin, end: end };
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}
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},
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unmask: function() {
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return this.trigger("unmask");
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},
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mask: function(mask, settings) {
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var input,
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defs,
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tests,
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partialPosition,
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firstNonMaskPos,
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len;
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if (!mask && this.length > 0) {
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input = $(this[0]);
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return input.data($.mask.dataName)();
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}
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settings = $.extend({
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placeholder: $.mask.placeholder, // Load default placeholder
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completed: null
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}, settings);
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defs = $.mask.definitions;
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tests = [];
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partialPosition = len = mask.length;
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firstNonMaskPos = null;
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$.each(mask.split(""), function(i, c) {
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if (c == '?') {
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len--;
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partialPosition = i;
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} else if (defs[c]) {
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tests.push(new RegExp(defs[c]));
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if (firstNonMaskPos === null) {
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firstNonMaskPos = tests.length - 1;
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}
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} else {
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tests.push(null);
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}
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});
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return this.trigger("unmask").each(function() {
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var input = $(this),
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buffer = $.map(
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mask.split(""),
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function(c, i) {
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if (c != '?') {
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return defs[c] ? settings.placeholder : c;
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}
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}),
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focusText = input.val();
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function seekNext(pos) {
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while (++pos < len && !tests[pos]);
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return pos;
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}
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function seekPrev(pos) {
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while (--pos >= 0 && !tests[pos]);
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return pos;
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}
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function shiftL(begin,end) {
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var i,
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j;
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if (begin<0) {
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return;
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}
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for (i = begin, j = seekNext(end); i < len; i++) {
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if (tests[i]) {
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if (j < len && tests[i].test(buffer[j])) {
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buffer[i] = buffer[j];
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buffer[j] = settings.placeholder;
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} else {
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break;
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}
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j = seekNext(j);
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}
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}
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writeBuffer();
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input.caret(Math.max(firstNonMaskPos, begin));
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}
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function shiftR(pos) {
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var i,
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c,
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j,
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t;
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for (i = pos, c = settings.placeholder; i < len; i++) {
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if (tests[i]) {
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j = seekNext(i);
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t = buffer[i];
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buffer[i] = c;
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if (j < len && tests[j].test(t)) {
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c = t;
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} else {
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break;
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}
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}
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}
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}
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function keydownEvent(e) {
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var k = e.which,
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pos,
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begin,
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end;
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//backspace, delete, and escape get special treatment
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if (k === 8 || k === 46 || (iPhone && k === 127)) {
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pos = input.caret();
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begin = pos.begin;
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end = pos.end;
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if (end - begin === 0) {
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begin=k!==46?seekPrev(begin):(end=seekNext(begin-1));
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end=k===46?seekNext(end):end;
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}
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clearBuffer(begin, end);
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shiftL(begin, end - 1);
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e.preventDefault();
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} else if (k == 27) {//escape
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input.val(focusText);
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input.caret(0, checkVal());
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e.preventDefault();
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}
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}
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function keypressEvent(e) {
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var k = e.which,
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pos = input.caret(),
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p,
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c,
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next;
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if (e.ctrlKey || e.altKey || e.metaKey || k < 32) {//Ignore
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return;
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} else if (k) {
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if (pos.end - pos.begin !== 0){
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clearBuffer(pos.begin, pos.end);
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shiftL(pos.begin, pos.end-1);
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}
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p = seekNext(pos.begin - 1);
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if (p < len) {
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c = String.fromCharCode(k);
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if (tests[p].test(c)) {
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shiftR(p);
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buffer[p] = c;
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writeBuffer();
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next = seekNext(p);
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if(android){
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setTimeout($.proxy($.fn.caret,input,next),0);
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}else{
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input.caret(next);
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}
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if (settings.completed && next >= len) {
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settings.completed.call(input);
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}
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}
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}
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e.preventDefault();
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}
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}
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function clearBuffer(start, end) {
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var i;
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for (i = start; i < end && i < len; i++) {
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if (tests[i]) {
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buffer[i] = settings.placeholder;
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}
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}
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}
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function writeBuffer() { input.val(buffer.join('')); }
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function checkVal(allow) {
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//try to place characters where they belong
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var test = input.val(),
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lastMatch = -1,
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i,
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c;
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for (i = 0, pos = 0; i < len; i++) {
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if (tests[i]) {
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buffer[i] = settings.placeholder;
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while (pos++ < test.length) {
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c = test.charAt(pos - 1);
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if (tests[i].test(c)) {
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buffer[i] = c;
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lastMatch = i;
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break;
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}
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}
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if (pos > test.length) {
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break;
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}
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} else if (buffer[i] === test.charAt(pos) && i !== partialPosition) {
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pos++;
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lastMatch = i;
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}
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}
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if (allow) {
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writeBuffer();
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} else if (lastMatch + 1 < partialPosition) {
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input.val("");
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clearBuffer(0, len);
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} else {
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writeBuffer();
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input.val(input.val().substring(0, lastMatch + 1));
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}
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return (partialPosition ? i : firstNonMaskPos);
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}
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input.data($.mask.dataName,function(){
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return $.map(buffer, function(c, i) {
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return tests[i]&&c!=settings.placeholder ? c : null;
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}).join('');
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});
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if (!input.attr("readonly"))
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input
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.one("unmask", function() {
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input
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.unbind(".mask")
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.removeData($.mask.dataName);
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})
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.bind("focus.mask", function() {
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clearTimeout(caretTimeoutId);
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var pos,
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moveCaret;
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focusText = input.val();
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pos = checkVal();
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caretTimeoutId = setTimeout(function(){
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writeBuffer();
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if (pos == mask.length) {
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input.caret(0, pos);
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} else {
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input.caret(pos);
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}
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}, 10);
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})
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.bind("blur.mask", function() {
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checkVal();
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if (input.val() != focusText)
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input.change();
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})
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.bind("keydown.mask", keydownEvent)
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.bind("keypress.mask", keypressEvent)
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.bind(pasteEventName, function() {
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setTimeout(function() {
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var pos=checkVal(true);
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input.caret(pos);
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if (settings.completed && pos == input.val().length)
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settings.completed.call(input);
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}, 0);
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});
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checkVal(); //Perform initial check for existing values
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});
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}
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});
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})(jQuery); |