<?php

/**

 * Smarty plugin

 * 

 * @package Smarty

 * @subpackage PluginsFunction

 */

/**

 * Smarty {html_radios} function plugin

 * 

 * File:       function.html_radios.php<br>

 * Type:       function<br>

 * Name:       html_radios<br>

 * Date:       24.Feb.2003<br>

 * Purpose:    Prints out a list of radio input types<br>

 * Params:

 * <pre>

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

 * - values     (required) - array

 * - options    (required) - associative array

 * - checked    (optional) - array default not set

 * - separator  (optional) - ie <br> or &nbsp;

 * - output     (optional) - the output next to each radio button

 * - assign     (optional) - assign the output as an array to this variable

 * - escape     (optional) - escape the content (not value), defaults to true

 * </pre>

 * Examples:

 * <pre>

 * {html_radios values=$ids output=$names}

 * {html_radios values=$ids name='box' separator='<br>' output=$names}

 * {html_radios values=$ids checked=$checked separator='<br>' output=$names}

 * </pre>

 * 

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

 *      (Smarty online manual)

 * @author Christopher Kvarme <christopher.kvarme@flashjab.com> 

 * @author credits to Monte Ohrt <monte at ohrt dot com> 

 * @version 1.0

 * @param array                    $params   parameters

 * @param Smarty_Internal_Template $template template object

 * @return string 

 * @uses smarty_function_escape_special_chars()

 */

function smarty_function_html_radios($params, $template)

{

    require_once(SMARTY_PLUGINS_DIR . 'shared.escape_special_chars.php');

    $name = 'radio';

    $values = null;

    $options = null;

    $selected = null;

    $separator = '';

    $escape = true;

    $labels = true;

    $label_ids = false;

    $output = null;

    $extra = '';

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

        switch ($_key) {

            case 'name':

            case 'separator':

                $$_key = (string) $_val;

                break;

            case 'checked':

            case 'selected':

                if (is_array($_val)) {

                    trigger_error('html_radios: the "' . $_key . '" attribute cannot be an array', E_USER_WARNING);

                } elseif (is_object($_val)) {

                    if (method_exists($_val, "__toString")) {

                        $selected = smarty_function_escape_special_chars((string) $_val->__toString());

                    } else {

                        trigger_error("html_radios: selected attribute is an object of class '". get_class($_val) ."' without __toString() method", E_USER_NOTICE);

                    }

                } else {

                    $selected = (string) $_val;

                } 

                break;

            case 'escape':

            case 'labels':

            case 'label_ids':

                $$_key = (bool) $_val;

                break;

            case 'options':

                $$_key = (array) $_val;

                break;

            case 'values':

            case 'output':

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

                break;

            case 'radios':

                trigger_error('html_radios: the use of the "radios" attribute is deprecated, use "options" instead', E_USER_WARNING);

                $options = (array) $_val;

                break;

            case 'assign':

                break;

            default:

                if (!is_array($_val)) {

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

                } else {

                    trigger_error("html_radios: extra attribute '$_key' cannot be an array", E_USER_NOTICE);

                } 

                break;

        } 

    } 

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

        /* raise error here? */

        return '';

    }

    $_html_result = array();

    if (isset($options)) {

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

            $_html_result[] = smarty_function_html_radios_output($name, $_key, $_val, $selected, $extra, $separator, $labels, $label_ids, $escape);

        }

    } else {

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

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

            $_html_result[] = smarty_function_html_radios_output($name, $_key, $_val, $selected, $extra, $separator, $labels, $label_ids, $escape);

        } 

    } 

    if (!empty($params['assign'])) {

        $template->assign($params['assign'], $_html_result);

    } else {

        return implode("\n", $_html_result);

    } 

} 

function smarty_function_html_radios_output($name, $value, $output, $selected, $extra, $separator, $labels, $label_ids, $escape)

{

    $_output = '';

    if (is_object($value)) {

        if (method_exists($value, "__toString")) {

            $value = (string) $value->__toString();

        } else {

            trigger_error("html_options: value is an object of class '". get_class($value) ."' without __toString() method", E_USER_NOTICE);

            return '';

        }

    } else {

        $value = (string) $value;

    }

    if (is_object($output)) {

        if (method_exists($output, "__toString")) {

            $output = (string) $output->__toString();

        } else {

            trigger_error("html_options: output is an object of class '". get_class($output) ."' without __toString() method", E_USER_NOTICE);

            return '';

        }

    } else {

        $output = (string) $output;

    }

    if ($labels) {

        if ($label_ids) {

            $_id = smarty_function_escape_special_chars(preg_replace('![^\w\-\.]!' . Smarty::$_UTF8_MODIFIER, '_', $name . '_' . $value));

            $_output .= '<label for="' . $_id . '">';

        } else {

            $_output .= '<label>';

        } 

    }

    $name = smarty_function_escape_special_chars($name);

    $value = smarty_function_escape_special_chars($value);

    if ($escape) {

        $output = smarty_function_escape_special_chars($output);

    }

    $_output .= '<input type="radio" name="' . $name . '" value="' . $value . '"';

    if ($labels && $label_ids) {

        $_output .= ' id="' . $_id . '"';

    }

    if ($value === $selected) {

        $_output .= ' checked="checked"';

    }

    $_output .= $extra . ' />' . $output;

    if ($labels) {

        $_output .= '</label>';

    }

    $_output .= $separator;

    return $_output;

} 

?>