<?php

/**

 * Zend Framework

 *

 * LICENSE

 *

 * This source file is subject to the new BSD license that is bundled

 * with this package in the file LICENSE.txt.

 * It is also available through the world-wide-web at this URL:

 * http://framework.zend.com/license/new-bsd

 * If you did not receive a copy of the license and are unable to

 * obtain it through the world-wide-web, please send an email

 * to license@zend.com so we can send you a copy immediately.

 *

 * @category   Zend

 * @package    Zend_View

 * @subpackage Helper

 * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 * @version    $Id$

 */

/**

 * Abstract class for extension

 */

require_once 'Zend/View/Helper/FormElement.php';

/**

 * Helper to generate "select" list of options

 *

 * @category   Zend

 * @package    Zend_View

 * @subpackage Helper

 * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

class Zend_View_Helper_FormSelect extends Zend_View_Helper_FormElement

{

    /**

     * Generates 'select' list of options.

     *

     * @access public

     *

     * @param string|array $name If a string, the element name.  If an

     * array, all other parameters are ignored, and the array elements

     * are extracted in place of added parameters.

     *

     * @param mixed $value The option value to mark as 'selected'; if an

     * array, will mark all values in the array as 'selected' (used for

     * multiple-select elements).

     *

     * @param array|string $attribs Attributes added to the 'select' tag.

     * the optional 'optionClasses' attribute is used to add a class to

     * the options within the select (associative array linking the option

     * value to the desired class)

     *

     * @param array $options An array of key-value pairs where the array

     * key is the radio value, and the array value is the radio text.

     *

     * @param string $listsep When disabled, use this list separator string

     * between list values.

     *

     * @return string The select tag and options XHTML.

     */

    public function formSelect($name, $value = null, $attribs = null,

        $options = null, $listsep = "<br />\n")

    {

        $info = $this->_getInfo($name, $value, $attribs, $options, $listsep);

        extract($info); // name, id, value, attribs, options, listsep, disable

        // force $value to array so we can compare multiple values to multiple

        // options; also ensure it's a string for comparison purposes.

        $value = array_map('strval', (array) $value);

        // check if element may have multiple values

        $multiple = '';

        if (substr($name, -2) == '[]') {

            // multiple implied by the name

            $multiple = ' multiple="multiple"';

        }

        if (isset($attribs['multiple'])) {

            // Attribute set

            if ($attribs['multiple']) {

                // True attribute; set multiple attribute

                $multiple = ' multiple="multiple"';

                // Make sure name indicates multiple values are allowed

                if (!empty($multiple) && (substr($name, -2) != '[]')) {

                    $name .= '[]';

                }

            } else {

                // False attribute; ensure attribute not set

                $multiple = '';

            }

            unset($attribs['multiple']);

        }

        // handle the options classes

        $optionClasses = array();

        if (isset($attribs['optionClasses'])) {

            $optionClasses = $attribs['optionClasses'];

            unset($attribs['optionClasses']);

        }

        // now start building the XHTML.

        $disabled = '';

        if (true === $disable) {

            $disabled = ' disabled="disabled"';

        }

        // Build the surrounding select element first.

        $xhtml = '<select'

                . ' name="' . $this->view->escape($name) . '"'

                . ' id="' . $this->view->escape($id) . '"'

                . $multiple

                . $disabled

                . $this->_htmlAttribs($attribs)

                . ">\n    ";

        // build the list of options

        $list       = array();

        $translator = $this->getTranslator();

        foreach ((array) $options as $opt_value => $opt_label) {

            if (is_array($opt_label)) {

                $opt_disable = '';

                if (is_array($disable) && in_array($opt_value, $disable)) {

                    $opt_disable = ' disabled="disabled"';

                }

                if (null !== $translator) {

                    $opt_value = $translator->translate($opt_value);

                }

                $opt_id = ' id="' . $this->view->escape($id) . '-optgroup-'

                        . $this->view->escape($opt_value) . '"';

                $list[] = '<optgroup'

                        . $opt_disable

                        . $opt_id

                        . ' label="' . $this->view->escape($opt_value) .'">';

                foreach ($opt_label as $val => $lab) {

                    $list[] = $this->_build($val, $lab, $value, $disable, $optionClasses);

                }

                $list[] = '</optgroup>';

            } else {

                $list[] = $this->_build($opt_value, $opt_label, $value, $disable, $optionClasses);

            }

        }

        // add the options to the xhtml and close the select

        $xhtml .= implode("\n    ", $list) . "\n</select>";

        return $xhtml;

    }

    /**

     * Builds the actual <option> tag

     *

     * @param string $value Options Value

     * @param string $label Options Label

     * @param array  $selected The option value(s) to mark as 'selected'

     * @param array|bool $disable Whether the select is disabled, or individual options are

     * @param array $optionClasses The classes to associate with each option value

     * @return string Option Tag XHTML

     */

    protected function _build($value, $label, $selected, $disable, $optionClasses = array())

    {

        if (is_bool($disable)) {

            $disable = array();

        }

        $class = null;

        if (array_key_exists($value, $optionClasses)) {

            $class = $optionClasses[$value];

        }

        $opt = '<option'

             . ' value="' . $this->view->escape($value) . '"';

             if ($class) {

             $opt .= ' class="' . $class . '"';

         }

        // selected?

        if (in_array((string) $value, $selected)) {

            $opt .= ' selected="selected"';

        }

        // disabled?

        if (in_array($value, $disable)) {

            $opt .= ' disabled="disabled"';

        }

        $opt .= '>' . $this->view->escape($label) . "</option>";

        return $opt;

    }

}