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| 58d006 | 1 | /* |
| A | 2 | * Copyright (c) 2007 Josh Bush (digitalbush.com) |
| 3 | * | |
| 4 | * Permission is hereby granted, free of charge, to any person | |
| 5 | * obtaining a copy of this software and associated documentation | |
| 6 | * files (the "Software"), to deal in the Software without | |
| 7 | * restriction, including without limitation the rights to use, | |
| 8 | * copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| 9 | * copies of the Software, and to permit persons to whom the | |
| 10 | * Software is furnished to do so, subject to the following | |
| 11 | * conditions: | |
| 12 | ||
| 13 | * The above copyright notice and this permission notice shall be | |
| 14 | * included in all copies or substantial portions of the Software. | |
| 15 | * | |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
| 17 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES | |
| 18 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
| 19 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT | |
| 20 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
| 21 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
| 22 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
| 23 | * OTHER DEALINGS IN THE SOFTWARE. | |
| 24 | */ | |
| 25 | ||
| 26 | /* | |
| 27 | * Version: 1.0 | |
| 28 | * Release: 2007-07-25 | |
| 29 | */ | |
| 30 | (function($) { | |
| 31 | //Helper Functions for Caret positioning | |
| 32 | function getCaretPosition(ctl){ | |
| 33 | var res = {begin: 0, end: 0 }; | |
| 34 | if (ctl.setSelectionRange){ | |
| 35 | res.begin = ctl.selectionStart; | |
| 36 | res.end = ctl.selectionEnd; | |
| 37 | }else if (document.selection && document.selection.createRange){ | |
| 38 | var range = document.selection.createRange(); | |
| 39 | res.begin = 0 - range.duplicate().moveStart('character', -100000); | |
| 40 | res.end = res.begin + range.text.length; | |
| 41 | } | |
| 42 | return res; | |
| 43 | }; | |
| 44 | ||
| 45 | function setCaretPosition(ctl, pos){ | |
| 46 | if(ctl.setSelectionRange){ | |
| 47 | ctl.focus(); | |
| 48 | ctl.setSelectionRange(pos,pos); | |
| 49 | }else if (ctl.createTextRange){ | |
| 50 | var range = ctl.createTextRange(); | |
| 51 | range.collapse(true); | |
| 52 | range.moveEnd('character', pos); | |
| 53 | range.moveStart('character', pos); | |
| 54 | range.select(); | |
| 55 | } | |
| 56 | }; | |
| 57 | ||
| 58 | //Predefined character definitions | |
| 59 | var charMap={ | |
| 60 | '9':"[0-9]", | |
| 61 | 'a':"[A-Za-z]", | |
| 62 | '*':"[A-Za-z0-9]" | |
| 63 | }; | |
| 64 | ||
| 65 | //Helper method to inject character definitions | |
| 66 | $.mask={ | |
| 67 | addPlaceholder : function(c,r){ | |
| 68 | charMap[c]=r; | |
| 69 | } | |
| 70 | }; | |
| 71 | ||
| 72 | //Main Method | |
| 73 | $.fn.mask = function(mask,settings) { | |
| 74 | settings = $.extend({ | |
| 75 | placeholder: "_", | |
| 76 | completed: null | |
| 77 | }, settings); | |
| 78 | ||
| 79 | //Build Regex for format validation | |
| 80 | var reString="^"; | |
| 81 | for(var i=0;i<mask.length;i++) | |
| 82 | reString+=(charMap[mask.charAt(i)] || ("\\"+mask.charAt(i))); | |
| 83 | reString+="$"; | |
| 84 | var re = new RegExp(reString); | |
| 85 | ||
| 86 | return this.each(function(){ | |
| 87 | var input=$(this); | |
| 88 | var buffer=new Array(mask.length); | |
| 89 | var locked=new Array(mask.length); | |
| 90 | ||
| 91 | //Build buffer layout from mask | |
| 92 | for(var i=0;i<mask.length;i++){ | |
| 93 | locked[i]=charMap[mask.charAt(i)]==null; | |
| 94 | buffer[i]=locked[i]?mask.charAt(i):settings.placeholder; | |
| 95 | } | |
| 96 | ||
| 97 | /*Event Bindings*/ | |
| 98 | input.focus(function(){ | |
| 99 | checkVal(); | |
| 100 | writeBuffer(); | |
| 101 | setCaretPosition(this,0); | |
| 102 | }); | |
| 103 | ||
| 104 | input.blur(checkVal); | |
| 105 | ||
| 106 | //Paste events for IE and Mozilla thanks to Kristinn Sigmundsson | |
| 107 | if ($.browser.msie) | |
| 108 | this.onpaste= function(){setTimeout(checkVal,0);}; | |
| 109 | else if ($.browser.mozilla) | |
| 110 | this.addEventListener('input',checkVal,false); | |
| 111 | ||
| 112 | var ignore=false; //Variable for ignoring control keys | |
| 113 | ||
| 114 | input.keydown(function(e){ | |
| 115 | var pos=getCaretPosition(this); | |
| 116 | var k = e.keyCode; | |
| 117 | ignore=(k < 16 || (k > 16 && k < 32 ) || (k > 32 && k < 41)); | |
| 118 | ||
| 119 | //delete selection before proceeding | |
| 120 | if((pos.begin-pos.end)!=0 && (!ignore || k==8 || k==46)){ | |
| 121 | clearBuffer(pos.begin,pos.end); | |
| 122 | } | |
| 123 | //backspace and delete get special treatment | |
| 124 | if(k==8){//backspace | |
| 125 | while(pos.begin-->=0){ | |
| 126 | if(!locked[pos.begin]){ | |
| 127 | buffer[pos.begin]=settings.placeholder; | |
| 128 | if($.browser.opera){ | |
| 129 | //Opera won't let you cancel the backspace, so we'll let it backspace over a dummy character. | |
| 130 | writeBuffer(pos.begin); | |
| 131 | setCaretPosition(this,pos.begin+1); | |
| 132 | }else{ | |
| 133 | writeBuffer(); | |
| 134 | setCaretPosition(this,pos.begin); | |
| 135 | } | |
| 136 | return false; | |
| 137 | } | |
| 138 | } | |
| 139 | }else if(k==46){//delete | |
| 140 | clearBuffer(pos.begin,pos.begin+1); | |
| 141 | writeBuffer(); | |
| 142 | setCaretPosition(this,pos.begin); | |
| 143 | return false; | |
| 144 | }else if (k==27){ | |
| 145 | clearBuffer(0,mask.length); | |
| 146 | writeBuffer(); | |
| 147 | setCaretPosition(this,0); | |
| 148 | return false; | |
| 149 | } | |
| 150 | ||
| 151 | }); | |
| 152 | ||
| 153 | input.keypress(function(e){ | |
| 154 | if(ignore){ | |
| 155 | ignore=false; | |
| 156 | return; | |
| 157 | } | |
| 158 | e=e||window.event; | |
| 159 | var k=e.charCode||e.keyCode||e.which; | |
| 160 | ||
| 161 | var pos=getCaretPosition(this); | |
| 162 | var caretPos=pos.begin; | |
| 163 | ||
| 164 | if(e.ctrlKey || e.altKey){//Ignore | |
| 165 | return true; | |
| 166 | }else if ((k>=41 && k<=122) ||k==32 || k>186){//typeable characters | |
| 167 | while(pos.begin<mask.length){ | |
| 168 | var reString=charMap[mask.charAt(pos.begin)]; | |
| 169 | var match; | |
| 170 | if(reString){ | |
| 171 | var reChar=new RegExp(reString); | |
| 172 | match=String.fromCharCode(k).match(reChar); | |
| 173 | }else{//we're on a mask char, go forward and try again | |
| 174 | pos.begin+=1; | |
| 175 | pos.end=pos.begin; | |
| 176 | caretPos+=1; | |
| 177 | continue; | |
| 178 | } | |
| 179 | ||
| 180 | if(match) | |
| 181 | buffer[pos.begin]=String.fromCharCode(k); | |
| 182 | else | |
| 183 | return false;//reject char | |
| 184 | ||
| 185 | while(++caretPos<mask.length){//seek forward to next typable position | |
| 186 | if(!locked[caretPos]) | |
| 187 | break; | |
| 188 | } | |
| 189 | break; | |
| 190 | } | |
| 191 | }else | |
| 192 | return false; | |
| 193 | ||
| 194 | writeBuffer(); | |
| 195 | if(settings.completed && caretPos>=buffer.length) | |
| 196 | settings.completed.call(input); | |
| 197 | else | |
| 198 | setCaretPosition(this,caretPos); | |
| 199 | ||
| 200 | return false; | |
| 201 | }); | |
| 202 | ||
| 203 | /*Helper Methods*/ | |
| 204 | function clearBuffer(start,end){ | |
| 205 | for(var i=start;i<end;i++){ | |
| 206 | if(!locked[i]) | |
| 207 | buffer[i]=settings.placeholder; | |
| 208 | } | |
| 209 | }; | |
| 210 | ||
| 211 | function writeBuffer(pos){ | |
| 212 | var s=""; | |
| 213 | for(var i=0;i<mask.length;i++){ | |
| 214 | s+=buffer[i]; | |
| 215 | if(i==pos) | |
| 216 | s+=settings.placeholder; | |
| 217 | } | |
| 218 | input.val(s); | |
| 219 | return s; | |
| 220 | }; | |
| 221 | ||
| 222 | function checkVal(){ | |
| 223 | //try to place charcters where they belong | |
| 224 | var test=input.val(); | |
| 225 | var pos=0; | |
| 226 | for(var i=0;i<mask.length;i++){ | |
| 227 | if(!locked[i]){ | |
| 228 | while(pos++<test.length){ | |
| 229 | //Regex Test each char here. | |
| 230 | var reChar=new RegExp(charMap[mask.charAt(i)]); | |
| 231 | if(test.charAt(pos-1).match(reChar)){ | |
| 232 | buffer[i]=test.charAt(pos-1); | |
| 233 | break; | |
| 234 | } | |
| 235 | } | |
| 236 | } | |
| 237 | } | |
| 238 | var s=writeBuffer(); | |
| 239 | if(!s.match(re)){ | |
| 240 | input.val(""); | |
| 241 | clearBuffer(0,mask.length); | |
| 242 | } | |
| 243 | }; | |
| 244 | }); | |
| 245 | }; | |
| 246 | })(jQuery); | |
