# gallery-box/trunk/admin/src/cmb2-select2/select2.php

Gallery Box, version trunk. 187 lines.

- Page: https://pluginprobe.com/plugins/gallery-box/trunk/code/admin/src/cmb2-select2/select2.php
- Raw: https://pluginprobe.com/plugins/gallery-box/trunk/raw/admin/src/cmb2-select2/select2.php
- Modified: 2025-04-19T13:27:04+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/gallery-box/trunk/code/admin/src/cmb2-select2/select2.php#L10-L20`.

```php
<?php

/**
 * Class PW_CMB2_Field_Select2
 */
if (!class_exists('PW_CMB2_Field_Select2')) {
	class PW_CMB2_Field_Select2
	{

		/**
		 * Current version number
		 */
		const VERSION = '3.0.3';

		/**
		 * Initialize the plugin by hooking into CMB2
		 */
		public function __construct()
		{
			add_filter('cmb2_render_pw_select', array($this, 'render_pw_select'), 10, 5);
			add_filter('cmb2_render_pw_multiselect', array($this, 'render_pw_multiselect'), 10, 5);
			add_filter('cmb2_sanitize_pw_multiselect', array($this, 'pw_multiselect_sanitize'), 10, 4);
			add_filter('cmb2_types_esc_pw_multiselect', array($this, 'pw_multiselect_escaped_value'), 10, 3);
			add_filter('cmb2_repeat_table_row_types', array($this, 'pw_multiselect_table_row_class'), 10, 1);
		}

		/**
		 * Render select box field
		 */
		public function render_pw_select($field, $field_escaped_value, $field_object_id, $field_object_type, $field_type_object)
		{
			$this->setup_admin_scripts();

			if (version_compare(CMB2_VERSION, '2.2.2', '>=')) {
				$field_type_object->type = new CMB2_Type_Select($field_type_object);
			}

			echo $field_type_object->select(array(
				'class'            => 'pw_select2 pw_select',
				'desc'             => $field_type_object->_desc(true),
				'options'          => '<option></option>' . $field_type_object->concat_items(),
				'data-placeholder' => $field->args('attributes', 'placeholder') ? $field->args('attributes', 'placeholder') : $field->args('description'),
			));
		}

		/**
		 * Render multi-value select input field
		 */
		public function render_pw_multiselect($field, $field_escaped_value, $field_object_id, $field_object_type, $field_type_object)
		{
			$this->setup_admin_scripts();

			if (version_compare(CMB2_VERSION, '2.2.2', '>=')) {
				$field_type_object->type = new CMB2_Type_Select($field_type_object);
			}

			$a = $field_type_object->parse_args('pw_multiselect', array(
				'multiple'         => 'multiple',
				'style'            => 'width: 99%',
				'class'            => 'pw_select2 pw_multiselect',
				'name'             => $field_type_object->_name() . '[]',
				'id'               => $field_type_object->_id(),
				'desc'             => $field_type_object->_desc(true),
				'options'          => $this->get_pw_multiselect_options($field_escaped_value, $field_type_object),
				'data-placeholder' => $field->args('attributes', 'placeholder') ? $field->args('attributes', 'placeholder') : $field->args('description'),
			));

			$attrs = $field_type_object->concat_attrs($a, array('desc', 'options'));
			echo sprintf('<select%s>%s</select>%s', $attrs, $a['options'], $a['desc']);
		}

		/**
		 * Return list of options for pw_multiselect
		 *
		 * Return the list of options, with selected options at the top preserving their order. This also handles the
		 * removal of selected options which no longer exist in the options array.
		 */
		public function get_pw_multiselect_options($field_escaped_value = array(), $field_type_object = null)
		{
			$options = (array) $field_type_object->field->options();

			// If we have selected items, we need to preserve their order
			if (!empty($field_escaped_value)) {
				$options = $this->sort_array_by_array($options, $field_escaped_value);
			}

			$selected_items = '';
			$other_items = '';

			foreach ($options as $option_value => $option_label) {

				// Clone args & modify for just this item
				$option = array(
					'value' => $option_value,
					'label' => $option_label,
				);

				// Split options into those which are selected and the rest
				if (in_array($option_value, (array) $field_escaped_value)) {
					$option['checked'] = true;
					$selected_items .= $field_type_object->select_option($option);
				} else {
					$other_items .= $field_type_object->select_option($option);
				}
			}

			return $selected_items . $other_items;
		}

		/**
		 * Sort an array by the keys of another array
		 *
		 * @author Eran Galperin
		 * @link http://link.from.pw/1Waji4l
		 */
		public function sort_array_by_array(array $array, array $orderArray)
		{
			$ordered = array();

			foreach ($orderArray as $key) {
				if (array_key_exists($key, $array)) {
					$ordered[$key] = $array[$key];
					unset($array[$key]);
				}
			}

			return $ordered + $array;
		}

		/**
		 * Handle sanitization for repeatable fields
		 */
		public function pw_multiselect_sanitize($check, $meta_value, $object_id, $field_args)
		{
			if (!is_array($meta_value) || !$field_args['repeatable']) {
				return $check;
			}

			foreach ($meta_value as $key => $val) {
				$meta_value[$key] = array_map('sanitize_text_field', $val);
			}

			return $meta_value;
		}

		/**
		 * Handle escaping for repeatable fields
		 */
		public function pw_multiselect_escaped_value($check, $meta_value, $field_args)
		{
			if (!is_array($meta_value) || !$field_args['repeatable']) {
				return $check;
			}

			foreach ($meta_value as $key => $val) {
				$meta_value[$key] = array_map('esc_attr', $val);
			}

			return $meta_value;
		}

		/**
		 * Add 'table-layout' class to multi-value select field
		 */
		public function pw_multiselect_table_row_class($check)
		{
			$check[] = 'pw_multiselect';

			return $check;
		}

		/**
		 * Enqueue scripts and styles
		 */
		public function setup_admin_scripts()
		{
			$asset_path = apply_filters('pw_cmb2_field_select2_asset_path', plugins_url('', __FILE__));

			wp_register_script('pw-select2', $asset_path . '/js/select2.min.js', array('jquery-ui-sortable'), '4.0.3');
			wp_enqueue_script('pw-select2-init', $asset_path . '/js/script.js', array('cmb2-scripts', 'pw-select2'), self::VERSION);
			wp_register_style('pw-select2', $asset_path . '/css/select2.min.css', array(), '4.0.3');
			wp_enqueue_style('pw-select2-tweaks', $asset_path . '/css/style.css', array('pw-select2'), self::VERSION);
		}
	}
	$pw_cmb2_field_select2 = new PW_CMB2_Field_Select2();
}

```