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   1  <?php
   2  // $Header: /cvsroot/tikiwiki/tiki/function.js_maxlength.php,v 1.4.2.3 2004/08/26 17:38:21 mose Exp $
   3  /**
   4   * \brief Smarty {js_maxlength} function handler
   5   *
   6   * Creates javascript to add 'maxlength' functionality to a <textbox>
   7   * Usage:
   8   * {js_maxlength textarea=[string] maxlength=[int]}
   9   *
  10   * TODO would be great if it worked with array arguments
  11   *
  12   */
  13  
  14  //this script may only be included - so its better to die if called directly.
  15  if (strpos($_SERVER["SCRIPT_NAME"],basename(__FILE__)) !== FALSE) {
  16    //smarty is not there - we need setup
  17    require_once ('tiki-setup.php');
  18    $smarty->assign('msg',tra("This script cannot be called directly"));
  19    $smarty->display("error.tpl");
  20    die;
  21  }
  22  
  23  
  24  function smarty_function_js_maxlength($params, &$smarty) {
  25      extract($params); // textarea=string maxlength=num
  26  
  27      echo "\n<script type=\"text/javascript\" language=\"Javascript1.2\">\n";
  28      echo "<!--\n";
  29      //
  30      // TODO this is the best I can get a countdown to work but it is still not
  31      // good enough. Improve or Remove permanently
  32      // function textCounter(f, countf, maxl) {
  33      //  if ( f.value.length > maxl-1 ) {
  34      //    f.value = f.value.substring(0, maxl-1);
  35      //    alert( 'This text can only be ' + maxl + ' characters long.' );
  36      //    return false;
  37      //  } else {
  38      //    countf.value = maxl - 1 - f.value.length;
  39      //  }
  40      //}
  41      echo "function verifyForm(f){\n";
  42      echo " var rtn=true;\n";
  43      echo "  if ( f.$textarea.value.length > $maxlength ) {\n";
  44      echo "    f.$textarea.style.color='red';\n";
  45      echo "    alert('" . tra("The text in RED is") . " ' + (f.$textarea.value.length - $maxlength) + ' " . tra("character(s) too long - please edit it.") . "');\n";
  46      echo "    rtn = false;\n";
  47      echo "  }\n";
  48      echo "  return rtn;\n";
  49      echo "}\n";
  50      echo "//-->\n";
  51      echo "</script>\n";
  52  }
  53  ?>