File admin/admin-bar.php

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<?php

namespace SIW\Admin;

use SIW\Admin\Notices as Admin_Notices;

/**
 * Aanpassingen aan Admin Bar
 * 
 * @copyright 2019 SIW Internationale Vrijwilligersprojecten
 * @since     3.0.0
 */
class Admin_Bar {

    /**
     * Nodes
     *
     * @var array
     */
    protected static $nodes = [];

    /**
     * Acties
     *
     * @var array
     */
    protected static $actions = [];

    /**
     * Init
     */
    public static function init() {
        $self = new self();
        add_action( 'admin_bar_menu', [ $self, 'remove_nodes'], PHP_INT_MAX );
        add_action( 'admin_bar_menu', [ $self, 'add_logo'], 1 );
        add_action( 'admin_bar_menu', [ $self, 'add_environment'], 2 );
        add_action( 'admin_bar_menu', [ $self, 'add_action_triggers'], 3 );
        add_action( 'init', [ $self, 'process_action_triggers' ] ); //TODO: misschien admin_init?
    }
    
    /**
     * Verwijdert standaardnodes
     *
     * @param \WP_Admin_Bar $wp_admin_bar
     */
    public function remove_nodes( \WP_Admin_Bar $wp_admin_bar ) {
        $wp_admin_bar->remove_node( 'wp-logo' );
        $wp_admin_bar->remove_node( 'site-name' );
        $wp_admin_bar->remove_node( 'comments' );
        $wp_admin_bar->remove_node( 'new-content' );
    }

    /**
     * Voegt logo toe aan adminbar
     *
     * @param \WP_Admin_Bar $wp_admin_bar
     */
    public function add_logo( \WP_Admin_Bar $wp_admin_bar ) {
        $logo_args = [
            'id'   => 'siw-logo',
            'meta' => [
                'class' => 'siw-logo',
                'title' => 'SIW',
            ],
        ];
        $wp_admin_bar->add_node( $logo_args );
    }

    /**
     * Voegt omgeving toe adminbar
     *
     * @param \WP_Admin_Bar $wp_admin_bar
     */
    public function add_environment( \WP_Admin_Bar $wp_admin_bar ) {
        $url_args = [
            'id'    => 'siw-url',
            'title' => sprintf( __( 'Je bent ingelogd op: %s', 'siw' ), site_url() ),
        ];
        $wp_admin_bar->add_node( $url_args );
    }

    /**
     * Voegt acties toe aan adminbar
     *
     * @param \WP_Admin_Bar $wp_admin_bar
     */
    public function add_action_triggers( \WP_Admin_Bar $wp_admin_bar ) {
        if ( ! current_user_can( 'manage_options' ) || empty( self::$actions ) ) {
            return;
        }

        /* Voeg hoofdnode toe*/
        $args = [
            'id'    => 'siw-actions',
            'title' => __( 'Start actie', 'siw' ),
            'href'  => '#',
        ];
        $wp_admin_bar->add_node( $args );
    
        /* Voeg nodes toe */
        $nodes = wp_list_sort( self::$nodes, 'title', 'asc', true );
        foreach ( $nodes as $node => $properties ) {
            $args = [
                'parent' => ( isset( $properties['parent'] ) ) ? 'siw-' . $properties['parent'] . '-actions' : 'siw-actions',
                'id'     => 'siw-' .$node . '-actions',
                'title'  => $properties['title'],
            ];
            $wp_admin_bar->add_node( $args );
        }

        $referer = '&_wp_http_referer=' . rawurlencode( wp_unslash( $_SERVER['REQUEST_URI'] ) );
        
        /* Voeg acties toe */
        $actions = wp_list_sort( self::$actions, 'title', 'asc', true );
        foreach ( $actions as $action => $properties ) {
            $args = [
                'parent' => ( isset( $properties['parent'] ) ) ? 'siw-' . $properties['parent'] . '-actions' : 'siw-actions',
                'id'     => "siw-action-{$action}",
                'title'  => $properties['title'],
                'href'   => wp_nonce_url( admin_url( "admin-post.php?siw-action={$action}{$referer}" ), 'siw-action' ),
            ];
            $wp_admin_bar->add_node( $args );
        }
    }

    /**
     * Verwerkt actie
     */
    public function process_action_triggers() {
        if ( ! isset( $_GET['siw-action'] ) || ! isset( $_GET['_wpnonce'] ) || ! wp_verify_nonce( $_GET['_wpnonce'], 'siw-action') ) {
            return;
        }

        $action = esc_attr( trim( $_REQUEST['siw-action']) );
        
        if ( ! in_array( $action, array_keys( self::$actions ) ) ) {
            return;
        }
        do_action( "siw_{$action}" );

        $notices = new Admin_Notices;
        $notices->add_notice( 'success', sprintf( __( 'Proces gestart: %s', 'siw' ), self::$actions[ $action ]['title'] ), true );
        wp_redirect( wp_get_referer() );
    }

    /**
     * Voegt node toe
     *
     * @param string $node
     * @param array $properties
     */
    public static function add_node( $node, $properties ) {
        self::$nodes[ $node ] = $properties;
    }

    /**
     * Voegt actie toe
     *
     * @param string $action
     * @param array $properties
     */
    public static function add_action( $action, $properties ) {
        self::$actions[ $action ] = $properties;
    }
}

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