JoryHogeveen/view-admin-as

<?php
/**
 * View Admin As - Toolbar UI
 *
 * @author  Jory Hogeveen <info@keraweb.nl>
 * @package View_Admin_As
 */

if ( ! defined( 'VIEW_ADMIN_AS_DIR' ) ) {
    die();
}

if ( ! class_exists( 'WP_Admin_Bar' ) && file_exists( ABSPATH . WPINC . '/class-wp-admin-bar.php' ) ) {
    require_once ABSPATH . WPINC . '/class-wp-admin-bar.php';
}

if ( class_exists( 'WP_Admin_Bar' ) ) {

/**
 * Toolbar UI for View Admin As.
 *
 * @author  Jory Hogeveen <info@keraweb.nl>
 * @package View_Admin_As
 * @since   1.6.0
 * @version 1.8.7
 * @see     wp-includes/class-wp-admin-bar.php
 * @uses    \WP_Admin_Bar Extends class
 */
final class VAA_View_Admin_As_Toolbar extends WP_Admin_Bar
{
    /**
     * The single instance of the class.
     *
     * @since  1.6.0
     * @static
     * @var    \VAA_View_Admin_As_Toolbar
     */
    private static $_instance = null;

    /**
     * Is this toolbar being rendered?
     *
     * @since  1.6.0
     * @static
     * @var    bool
     */
    public static $showing = false;

    /**
     * View Admin As store.
     *
     * @since  1.6.0
     * @var    \VAA_View_Admin_As_Store
     */
    private $vaa_store = null;

    /**
     * Construct function.
     * Protected to make sure it isn't declared elsewhere.
     *
     * @since   1.6.0
     * @since   1.6.1  `$vaa` param.
     * @access  protected
     * @param   \VAA_View_Admin_As  $vaa  The main VAA object.
     */
    protected function __construct( $vaa ) {
        self::$_instance = $this;
        $this->vaa_store = view_admin_as()->store();

        view_admin_as()->hooks()->add_action( 'vaa_view_admin_as_init', array( $this, 'vaa_init' ) );
    }

    /**
     * Init function that initializes this plugin after the main VAA class is loaded.
     *
     * @since   1.6.0
     * @access  public
     * @see     'vaa_view_admin_as_init' action
     * @return  void
     */
    public function vaa_init() {
        // @since  1.7.6  Changed hook from `init` to `wp_loaded` (later).
        view_admin_as()->hooks()->add_action( 'wp_loaded', array( $this, 'vaa_toolbar_init' ) );
    }

    /**
     * Init function for the toolbar.
     *
     * @since   1.6.0
     * @since   1.6.2  Check for customizer preview.
     * @since   1.7.6  Add customizer support by only enabling it in the container, not the preview window.
     * @since   1.8.7  Add JSON, AJAX and REST support.
     * @access  public
     * @return  void
     */
    public function vaa_toolbar_init() {
        if (
            VAA_API::is_toolbar_showing()
            || VAA_API::doing_ajax()
            || VAA_API::doing_json()
            || ( ! is_admin() && is_customize_preview() )
        ) {
            return;
        }

        if (
            ( is_customize_preview() && ! $this->vaa_store->get_userSettings( 'hide_customizer' ) )
            || ( ! is_admin() && ! $this->vaa_store->get_userSettings( 'hide_front' ) )
            || $this->vaa_store->get_view()
        ) {

            self::$showing = true;

            view_admin_as()->hooks()->add_action( 'wp_footer', array( $this, 'vaa_toolbar_render' ), 100 );
            view_admin_as()->hooks()->add_action( 'customize_controls_print_footer_scripts', array( $this, 'vaa_toolbar_render' ), 100 );
        }
    }

    /**
     * Render our toolbar using the render function from WP_Admin_bar.
     *
     * @since   1.6.0
     * @access  public
     * @return  void
     */
    public function vaa_toolbar_render() {

        $this->add_group( array(
            'id'   => 'top-secondary',
            'meta' => array(
                'class' => 'ab-top-secondary',
            ),
        ) );

        // Load our admin bar nodes and force the location.
        view_admin_as()->hooks()->do_action( 'vaa_toolbar_menu', $this, 'top-secondary' );

        /**
         * Add classes to the toolbar menu (front only).
         * @since   1.6.0
         * @param   array  $array  Empty array.
         * @return  array
         */
        $toolbar_classes = apply_filters( 'view_admin_as_toolbar_classes', array() );
        echo '<div id="vaa_toolbar" class="' . esc_attr( implode( ' ', $toolbar_classes ) ) . '">';

        $this->render();

        echo '</div>';
    }

    /**
     * Main Instance.
     *
     * Ensures only one instance of this class is loaded or can be loaded.
     *
     * @since   1.6.0
     * @access  public
     * @static
     * @param   \VAA_View_Admin_As  $caller  The referrer class.
     * @return  \VAA_View_Admin_As_Toolbar  $this
     */
    public static function get_instance( $caller = null ) {
        if ( is_null( self::$_instance ) ) {
            self::$_instance = new self( $caller );
        }
        return self::$_instance;
    }

} // End class VAA_View_Admin_As_Toolbar.

} // End if().