t3lib/jsfunc.validateform.js

   1 /***************************************************************
   2 *
   3 *  Universal validate-form
   4 *
   5 * $Id$
   6 *
   7 *  Copyright notice
   8 *
   9 *  (c) 1998-2008 Kasper Skaarhoj
  10 *  All rights reserved
  11 *
  12 *  This script is part of the TYPO3 t3lib/ library provided by
  13 *  Kasper Skaarhoj <kasper@typo3.com> together with TYPO3
  14 *
  15 *  Released under GNU/GPL (see license file in tslib/)
  16 *
  17 *  This script is distributed in the hope that it will be useful,
  18 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  20 *
  21 *  This copyright notice MUST APPEAR in all copies of this script
  22 ***************************************************************/
  23
  24
  25 function validateForm(theFormname,theFieldlist,goodMess,badMess,emailMess)      {
  26         var formObject = document[theFormname];
  27         if (!formObject)        {
  28                 formObject = document.getElementById(theFormname);
  29         }
  30         if (formObject && theFieldlist) {
  31                 var index=1;
  32                 var theField = split(theFieldlist, ",", index);
  33                 var msg="";
  34                 var theEreg = '';
  35                 var theEregMsg = '';
  36                 var specialMode = '';
  37
  38                 while (theField) {
  39                         theEreg = '';
  40                         specialMode = '';
  41
  42                                 // Check special modes:
  43                         if (theField == '_EREG')        {       // EREG mode: _EREG,[error msg],[JS ereg],[fieldname],[field Label]
  44                                 specialMode = theField;
  45
  46                                 index++;
  47                                 theEregMsg = unescape(split(theFieldlist, ",", index));
  48                                 index++;
  49                                 theEreg = unescape(split(theFieldlist, ",", index));
  50                         } else if (theField == '_EMAIL')        {
  51                                 specialMode = theField;
  52                         }
  53
  54                                 // Get real field name if special mode has been set:
  55                         if (specialMode)        {
  56                                 index++;
  57                                 theField = split(theFieldlist, ",", index);
  58                         }
  59
  60                         index++;
  61                         theLabel = unescape(split(theFieldlist, ",", index));
  62                         theField = unescape(theField);
  63                         if (formObject[theField])       {
  64                                 var fObj = formObject[theField];
  65                                 var type=fObj.type;
  66                                 if (!fObj.type) {
  67                                         type="radio";
  68                                 }
  69                                 var value="";
  70                                 switch(type)    {
  71                                         case "text":
  72                                         case "textarea":
  73                                         case "password":
  74                                                 value = fObj.value;
  75                                         break;
  76                                         case "select-one":
  77                                                 if (fObj.selectedIndex>=0)      {
  78                                                         value = fObj.options[fObj.selectedIndex].value;
  79                                                 }
  80                                         break;
  81                                         case "select-multiple":
  82                                                 var l=fObj.length;
  83                                                 for (a=0;a<l;a++)       {
  84                                                         if (fObj.options[a].selected)   {
  85                                                                  value+= fObj.options[a].value;
  86                                                         }
  87                                                 }
  88                                         break;
  89                                         case "radio":
  90                                         case "checkbox":
  91                                                 var len=fObj.length;
  92                                                 if (len)        {
  93                                                         for (a=0;a<len;a++)     {
  94                                                                 if (fObj[a].checked)    {
  95                                                                         value = fObj[a].value;
  96                                                                 }
  97                                                         }
  98                                                 } else {
  99                                                         if (fObj.checked)       {
 100                                                                 value = fObj.value;
 101                                                         }
 102                                                 }
 103                                         break;
 104                                         default:
 105                                                 value = 1;
 106                                 }
 107
 108                                 switch(specialMode)     {
 109                                         case "_EMAIL":
 110                                                 var theRegEx_notValid = new RegExp("(@.*@)|(\.\.)|(@\.)|(\.@)|(^\.)", "gi");
 111                                                 var theRegEx_isValid = new RegExp("^.+\@[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,4}|[0-9]{1,3})$","");
 112                                                 if (!theRegEx_isValid.test(value))      {       // This part was supposed to be a part of the condition: " || theRegEx_notValid.test(value)" - but I couldn't make it work (Mozilla Firefox, linux) - Anyone knows why?
 113                                                         msg+="\n"+theLabel+' ('+(emailMess ? unescape(emailMess) : 'Email address not valid!')+')';
 114                                                 }
 115                                         break;
 116                                         case "_EREG":
 117                                                 var theRegEx_isValid = new RegExp(theEreg,"");
 118                                                 if (!theRegEx_isValid.test(value))      {
 119                                                         msg+="\n"+theLabel+' ('+theEregMsg+')';
 120                                                 }
 121                                         break;
 122                                         default:
 123                                                 if (!value)     {
 124                                                         msg+="\n"+theLabel;
 125                                                 }
 126                                 }
 127                         }
 128                         index++;
 129                         theField = split(theFieldlist, ",", index);
 130                 }
 131                 if (msg)        {
 132                         var theBadMess = unescape(badMess);
 133                         if (!theBadMess)        {
 134                                 theBadMess = "You must fill in these fields:";
 135                         }
 136                         theBadMess+="\n";
 137                         alert(theBadMess+msg);
 138                         return false;
 139                 } else {
 140                         var theGoodMess = unescape(goodMess);
 141                         if (theGoodMess)        {
 142                                 alert(theGoodMess);
 143                         }
 144                         return true;
 145                 }
 146         }
 147 }
 148 function split(theStr1, delim, index) {
 149         var theStr = ''+theStr1;
 150         var lengthOfDelim = delim.length;
 151         sPos = -lengthOfDelim;
 152         if (index<1) {index=1;}
 153         for (a=1; a<index; a++) {
 154                 sPos = theStr.indexOf(delim, sPos+lengthOfDelim);
 155                 if (sPos==-1)   {return null;}
 156         }
 157         ePos = theStr.indexOf(delim, sPos+lengthOfDelim);
 158         if(ePos == -1)  {ePos = theStr.length;}
 159         return (theStr.substring(sPos+lengthOfDelim,ePos));
 160 }