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159
html/wp-content/themes/lawcarta/inc/menu-item-custom-fields.php
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159
html/wp-content/themes/lawcarta/inc/menu-item-custom-fields.php
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<?php
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/**
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* Menu item custom fields example
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*
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* Copy this file into your wp-content/mu-plugins directory.
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*
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* @package Menu_Item_Custom_Fields_Example
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* @version 0.2.0
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* @author Dzikri Aziz <kvcrvt@gmail.com>
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*
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*
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* Plugin name: Menu Item Custom Fields Example
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* Plugin URI: https://github.com/kucrut/wp-menu-item-custom-fields
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* Description: Example usage of Menu Item Custom Fields in plugins/themes
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* Version: 0.2.0
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* Author: Dzikri Aziz
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* Author URI: http://kucrut.org/
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* License: GPL v2
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* Text Domain: menu-item-custom-fields-example
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*/
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/**
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* Sample menu item metadata
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*
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* This class demonstrate the usage of Menu Item Custom Fields in plugins/themes.
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*
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* @since 0.1.0
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*/
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class LawCarta_Menu_Item_Custom_Fields {
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/**
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* Holds our custom fields
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*
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* @var array
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* @access protected
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* @since Menu_Item_Custom_Fields_Example 0.2.0
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*/
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protected static $fields = array();
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protected static $templates = [
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'text' => '<label for="%1$s">%2$s<br /><input type="text" id="%1$s" class="widefat %1$s" name="%3$s" value="%4$s" /></label>',
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];
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/**
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* Initialize plugin
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*/
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public static function init() {
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add_action( 'wp_nav_menu_item_custom_fields', array( __CLASS__, '_fields' ), 10, 4 );
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add_action( 'wp_update_nav_menu_item', array( __CLASS__, '_save' ), 10, 3 );
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self::$fields = array(
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'a-classes' => [
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'label' => __('Anchor Classes', 'lawcarta'),
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'type' => 'text'
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],
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'icon-classes' => [
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'label' => __('Icon Classes', 'lawcarta'),
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'type' => 'text'
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],
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);
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}
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/**
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* Save custom field value
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*
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* @wp_hook action wp_update_nav_menu_item
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*
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* @param int $menu_id Nav menu ID
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* @param int $menu_item_db_id Menu item ID
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* @param array $menu_item_args Menu item data
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*/
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public static function _save( $menu_id, $menu_item_db_id, $menu_item_args ) {
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if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) {
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return;
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}
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check_admin_referer( 'update-nav_menu', 'update-nav-menu-nonce' );
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foreach ( self::$fields as $field => $config ) {
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$key = sprintf( 'menu-item-%s', $field );
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// Sanitize
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if ( ! empty( $_POST[ $key ][ $menu_item_db_id ] ) ) {
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$value = $_POST[ $key ][ $menu_item_db_id ];
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if ($config['type'] === 'checkbox') {
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$value = (bool) $value;
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}
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} else {
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$value = null;
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}
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// Update
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if ( ! is_null( $value ) ) {
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update_post_meta( $menu_item_db_id, $key, $value );
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} else {
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delete_post_meta( $menu_item_db_id, $key );
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}
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}
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}
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/**
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* Print field
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*
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* @param object $item Menu item data object.
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* @param int $depth Depth of menu item. Used for padding.
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* @param array $args Menu item args.
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* @param int $id Nav menu ID.
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*
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* @return string Form fields
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*/
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public static function _fields( $id, $item, $depth, $args ) {
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foreach ( self::$fields as $field => $config ) :
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$key = sprintf( 'menu-item-%s', $field );
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$id = sprintf( 'edit-%s-%s', $key, $item->ID );
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$name = sprintf( '%s[%s]', $key, $item->ID );
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$value = get_post_meta( $item->ID, $key, true );
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$class = sprintf( 'field-%s', $field );
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$extra = '';
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if ($config['type'] === 'checkbox') {
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if ($value) {
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$extra = 'checked="checked"';
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}
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$value = 1;
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}
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?>
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<p class="description description-wide <?php echo esc_attr( $class ) ?>">
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<?php printf(
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self::$templates[$config['type']],
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esc_attr( $id ),
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esc_html( $config['label'] ),
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esc_attr( $name ),
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esc_attr( $value ),
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$extra
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) ?>
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</p>
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<?php
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endforeach;
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}
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public static function getMeta($item)
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{
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$meta = [];
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foreach ( self::$fields as $field => $config ) {
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$key = sprintf( 'menu-item-%s', $field );
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$value = get_post_meta( $item->ID, $key, true );
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if (!empty($value)) {
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if ($config['type'] === 'checkbox') {
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$value = (bool) $value;
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}
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$meta[$field] = $value;
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}
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}
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return $meta;
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}
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}
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LawCarta_Menu_Item_Custom_Fields::init();
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195
html/wp-content/themes/lawcarta/inc/walker-nav-menu.php
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195
html/wp-content/themes/lawcarta/inc/walker-nav-menu.php
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<?php
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class LawCarta_Walker_Nav_Menu extends Walker_Nav_Menu
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{
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/**
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* Starts the element output.
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*
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* @since 3.0.0
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* @since 4.4.0 The {@see 'nav_menu_item_args'} filter was added.
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*
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* @see Walker::start_el()
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*
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* @param string $output Used to append additional content (passed by reference).
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* @param WP_Post $item Menu item data object.
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* @param int $depth Depth of menu item. Used for padding.
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* @param stdClass $args An object of wp_nav_menu() arguments.
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* @param int $id Current item ID.
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*/
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public function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
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if ( isset( $args->item_spacing ) && 'discard' === $args->item_spacing ) {
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$t = '';
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$n = '';
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} else {
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$t = "\t";
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$n = "\n";
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}
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$indent = ( $depth ) ? str_repeat( $t, $depth ) : '';
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//var_dump($item);
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$classes = get_post_meta($item->ID, '_menu_item_classes', true);
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if (is_array($classes)) {
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$classes = array_filter($classes);
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} else {
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$classes = [];
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}
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/**
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* Filters the arguments for a single nav menu item.
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*
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* @since 4.4.0
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*
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* @param stdClass $args An object of wp_nav_menu() arguments.
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* @param WP_Post $item Menu item data object.
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* @param int $depth Depth of menu item. Used for padding.
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*/
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$args = apply_filters( 'nav_menu_item_args', $args, $item, $depth );
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/**
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* Filters the CSS class(es) applied to a menu item's list item element.
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*
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* @since 3.0.0
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* @since 4.1.0 The `$depth` parameter was added.
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*
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* @param array $classes The CSS classes that are applied to the menu item's `<li>` element.
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* @param WP_Post $item The current menu item.
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* @param stdClass $args An object of wp_nav_menu() arguments.
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* @param int $depth Depth of menu item. Used for padding.
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*/
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$class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args, $depth ) );
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$class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
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/**
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* Filters the ID applied to a menu item's list item element.
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*
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* @since 3.0.1
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* @since 4.1.0 The `$depth` parameter was added.
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*
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* @param string $menu_id The ID that is applied to the menu item's `<li>` element.
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* @param WP_Post $item The current menu item.
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* @param stdClass $args An object of wp_nav_menu() arguments.
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* @param int $depth Depth of menu item. Used for padding.
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*/
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$id = apply_filters( 'nav_menu_item_id', 'menu-item-'. $item->ID, $item, $args, $depth );
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$id = $id ? ' id="' . esc_attr( $id ) . '"' : '';
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$itemWrap = isset($args->item_wrap) ? $args->item_wrap : 'li';
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if (!empty($itemWrap)) {
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$output .= $indent . '<' . $itemWrap . $id . $class_names .'>';
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} else {
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$output .= $indent;
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}
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$atts = array();
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$atts['title'] = ! empty( $item->attr_title ) ? $item->attr_title : '';
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$atts['target'] = ! empty( $item->target ) ? $item->target : '';
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$atts['rel'] = ! empty( $item->xfn ) ? $item->xfn : '';
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$atts['href'] = ! empty( $item->url ) ? $item->url : '';
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$atts['class'] = !empty($item->meta['a-classes']) ? $item->meta['a-classes'] : '';
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/**
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* Filters the HTML attributes applied to a menu item's anchor element.
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*
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* @since 3.6.0
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* @since 4.1.0 The `$depth` parameter was added.
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*
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* @param array $atts {
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* The HTML attributes applied to the menu item's `<a>` element, empty strings are ignored.
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*
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* @type string $title Title attribute.
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* @type string $target Target attribute.
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* @type string $rel The rel attribute.
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* @type string $href The href attribute.
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* }
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* @param WP_Post $item The current menu item.
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* @param stdClass $args An object of wp_nav_menu() arguments.
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* @param int $depth Depth of menu item. Used for padding.
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*/
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$atts = apply_filters( 'nav_menu_link_attributes', $atts, $item, $args, $depth );
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$attributes = '';
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foreach ( $atts as $attr => $value ) {
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if ( ! empty( $value ) ) {
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$value = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );
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$attributes .= ' ' . $attr . '="' . $value . '"';
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}
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}
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/** This filter is documented in wp-includes/post-template.php */
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$title = apply_filters( 'the_title', $item->title, $item->ID );
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/**
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* Filters a menu item's title.
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*
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* @since 4.4.0
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*
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* @param string $title The menu item's title.
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* @param WP_Post $item The current menu item.
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* @param stdClass $args An object of wp_nav_menu() arguments.
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* @param int $depth Depth of menu item. Used for padding.
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*/
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$title = apply_filters( 'nav_menu_item_title', $title, $item, $args, $depth );
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$icon = '';
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$iconClasses = !empty($item->meta['icon-classes']) ? $item->meta['icon-classes'] : '';
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if (!empty($iconClasses)) {
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$iconEl = !empty($args->icon_wrap) ? $args->icon_wrap : 'span';
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$icon = '<' . $iconEl . ' class="' . $iconClasses . '"></' . $iconEl . '>';
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}
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if (isset($args->hide_title) && $args->hide_title === true) {
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$title = '';
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}
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$item_output = $args->before;
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$item_output .= '<a'. $attributes .'>';
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$item_output .= $args->link_before . $icon . $title . $args->link_after;
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$item_output .= '</a>';
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$item_output .= $args->after;
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/**
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* Filters a menu item's starting output.
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*
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* The menu item's starting output only includes `$args->before`, the opening `<a>`,
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* the menu item's title, the closing `</a>`, and `$args->after`. Currently, there is
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* no filter for modifying the opening and closing `<li>` for a menu item.
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*
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* @since 3.0.0
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*
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* @param string $item_output The menu item's starting HTML output.
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* @param WP_Post $item Menu item data object.
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* @param int $depth Depth of menu item. Used for padding.
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* @param stdClass $args An object of wp_nav_menu() arguments.
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*/
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$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
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}
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/**
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* Ends the element output, if needed.
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*
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* @since 3.0.0
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*
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* @see Walker::end_el()
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*
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* @param string $output Used to append additional content (passed by reference).
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* @param WP_Post $item Page data object. Not used.
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* @param int $depth Depth of page. Not Used.
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* @param stdClass $args An object of wp_nav_menu() arguments.
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*/
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public function end_el( &$output, $item, $depth = 0, $args = array() ) {
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if ( isset( $args->item_spacing ) && 'discard' === $args->item_spacing ) {
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$t = '';
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$n = '';
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} else {
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$t = "\t";
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$n = "\n";
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}
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$itemWrap = isset($args->item_wrap) ? $args->item_wrap : 'li';
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if (!empty($itemWrap)) {
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$output .= "</$itemWrap>{$n}";
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} else {
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$output .= "{$n}";
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}
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}
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}
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