<?php
require_once('HTML/QuickForm/textarea.php');

/**
 * HTML class for a textarea type element
 *
 * @author       Jamie Pratt
 * @access       public
 */
class MoodleQuickForm_textarea extends HTML_QuickForm_textarea{
    /**
     * Need to store id of form as we may need it for helpbutton
     *
     * @var string
     */
    var $_formid = '';
    /**
     * html for help button, if empty then no help
     *
     * @var string
     */
    var $_helpbutton='';
    /**
     * set html for help button
     *
     * @access   public
     * @param array $help array of arguments to make a help button
     * @param string $function function name to call to get html
     */
    function setHelpButton($helpbuttonargs, $function='helpbutton'){
        global $SESSION;
        if (!is_array($helpbuttonargs)){
            $helpbuttonargs=array($helpbuttonargs);
        }else{
            $helpbuttonargs=$helpbuttonargs;
        }
        //we do this to to return html instead of printing it
        //without having to specify it in every call to make a button.
        if ('helpbutton' == $function){
            $defaultargs=array('', '', 'moodle', true, false, '', true);
            $helpbuttonargs=$helpbuttonargs + $defaultargs ;
        } elseif ('editorhelpbutton' == $function){
            if (in_array('emoticons', $helpbuttonargs)){
                $SESSION->inserttextform = $this->_formid;
                $SESSION->inserttextfield = $this->getAttribute('name');
            }
        }
        $this->_helpbutton=call_user_func_array($function, $helpbuttonargs);
    }
    /**
     * get html for help button
     *
     * @access   public
     * @return  string html for help button
     */
    function getHelpButton(){
        return $this->_helpbutton;
    }
    /**
     * Called by HTML_QuickForm whenever form event is made on this element
     *
     * @param     string    $event  Name of event
     * @param     mixed     $arg    event arguments
     * @param     object    $caller calling object
     * @since     1.0
     * @access    public
     * @return    void
     */
    function onQuickFormEvent($event, $arg, &$caller)
    {
        switch ($event) {
            case 'createElement':
                $this->_formid = $caller->getAttribute('id');
                break;
        }
        return parent::onQuickFormEvent($event, $arg, $caller);
    } // end func onQuickFormEvent
}
?>