/**

 * Smarty plugin

 * @package Smarty

 * @subpackage plugins

 */

/**

 * Smarty {html_options} function plugin

 *

 * Type:     function

 * Name:     html_options

 * Input:

 *           - name       (optional) - string default "select"

 *           - values     (required if no options supplied) - array

 *           - options    (required if no values supplied) - associative array

 *           - selected   (optional) - string default not set

 *           - output     (required if not options supplied) - array

 * Purpose:  Prints the list of <option> tags generated from

 *           the passed parameters

 * @link http://smarty.php.net/manual/en/language.function.html.options.php {html_image}

 *      (Smarty online manual)

 * @param array

 * @param Smarty

 * @return string

 * @uses smarty_function_escape_special_chars()

 */

function smarty_function_html_options($params, &$smarty)

{

    require_once $smarty->_get_plugin_filepath('shared','escape_special_chars');

    $name = null;

    $values = null;

    $options = null;

    $selected = array();

    $output = null;

    $extra = '';

    foreach($params as $_key => $_val) {

        switch($_key) {

            case 'name':

                $$_key = (string)$_val;

                break;

            case 'options':

                $$_key = (array)$_val;

                break;

            case 'values':

            case 'output':

                $$_key = array_values((array)$_val);

                break;

            case 'selected':

                $$_key = array_map('strval', array_values((array)$_val));

                break;

            default:

                if(!is_array($_val)) {

                    $extra .= ' '.$_key.'="'.smarty_function_escape_special_chars($_val).'"';

                } else {

                    $smarty->trigger_error("html_options: extra attribute '$_key' cannot be an array", E_USER_NOTICE);

                }

                break;

        }

    }

    if (!isset($options) && !isset($values))

        return ''; /* raise error here? */

    $_html_result = '';

    if (isset($options)) {

        foreach ($options as $_key=>$_val)

            $_html_result .= smarty_function_html_options_optoutput($_key, $_val, $selected);

    } else {

        foreach ($values as $_i=>$_key) {

            $_val = isset($output[$_i]) ? $output[$_i] : '';

            $_html_result .= smarty_function_html_options_optoutput($_key, $_val, $selected);

        }

    }

    if(!empty($name)) {

        $_html_result = '<select name="' . $name . '"' . $extra . '>' . "\n" . $_html_result . '</select>' . "\n";

    }

    return $_html_result;

}

function smarty_function_html_options_optoutput($key, $value, $selected) {

    if(!is_array($value)) {

        $_html_result = '

            smarty_function_escape_special_chars($key) . '"';

        if (in_array((string)$key, $selected))

            $_html_result .= ' selected="selected"';

        $_html_result .= '>' . smarty_function_escape_special_chars($value) . '</option>' . "\n";

    } else {

        $_html_result = smarty_function_html_options_optgroup($key, $value, $selected);

    }

    return $_html_result;

}

function smarty_function_html_options_optgroup($key, $values, $selected) {

    $optgroup_html = '<optgroup label="' . smarty_function_escape_special_chars($key) . '">' . "\n";

    foreach ($values as $key => $value) {

        $optgroup_html .= smarty_function_html_options_optoutput($key, $value, $selected);

    }

    $optgroup_html .= "</optgroup>\n";

    return $optgroup_html;

}

/* vim: set expandtab: */

?>