<?php

/**

 * Toolbar API: Top-level Toolbar functionality

 *

 * @package WordPress

 * @subpackage Toolbar

 * @since 3.1.0

 */

/**

 * Instantiates the admin bar object and set it up as a global for access elsewhere.

 *

 * UNHOOKING THIS FUNCTION WILL NOT PROPERLY REMOVE THE ADMIN BAR.

 * For that, use show_admin_bar(false) or the {@see 'show_admin_bar'} filter.

 *

 * @since 3.1.0

 * @access private

 *

 * @global WP_Admin_Bar $wp_admin_bar

 *

 * @return bool Whether the admin bar was successfully initialized.

 */

function _wp_admin_bar_init() {

	global $wp_admin_bar;

	if ( ! is_admin_bar_showing() ) {

		return false;

	}

	/* Load the admin bar class code ready for instantiation */

	require_once ABSPATH . WPINC . '/class-wp-admin-bar.php';

	/* Instantiate the admin bar */

	/**

	 * Filters the admin bar class to instantiate.

	 *

	 * @since 3.1.0

	 *

	 * @param string $wp_admin_bar_class Admin bar class to use. Default 'WP_Admin_Bar'.

	 */

	$admin_bar_class = apply_filters( 'wp_admin_bar_class', 'WP_Admin_Bar' );

	if ( class_exists( $admin_bar_class ) ) {

		$wp_admin_bar = new $admin_bar_class();

	} else {

		return false;

	}

	$wp_admin_bar->initialize();

	$wp_admin_bar->add_menus();

	return true;

}

/**

 * Renders the admin bar to the page based on the $wp_admin_bar->menu member var.

 *

 * This is called very early on the {@see 'wp_body_open'} action so that it will render

 * before anything else being added to the page body.

 *

 * For backward compatibility with themes not using the 'wp_body_open' action,

 * the function is also called late on {@see 'wp_footer'}.

 *

 * It includes the {@see 'admin_bar_menu'} action which should be used to hook in and

 * add new menus to the admin bar. This also gives you access to the `$post` global,

 * among others.

 *

 * @since 3.1.0

 * @since 5.4.0 Called on 'wp_body_open' action first, with 'wp_footer' as a fallback.

 *

 * @global WP_Admin_Bar $wp_admin_bar

 */

function wp_admin_bar_render() {

	global $wp_admin_bar;

	static $rendered = false;

	if ( $rendered ) {

		return;

	}

	if ( ! is_admin_bar_showing() || ! is_object( $wp_admin_bar ) ) {

		return;

	}

	/**

	 * Loads all necessary admin bar items.

	 *

	 * This hook can add, remove, or manipulate admin bar items. The priority

	 * determines the placement for new items, and changes to existing items

	 * would require a high priority. To remove or manipulate existing nodes

	 * without a specific priority, use `wp_before_admin_bar_render`.

	 *

	 * @since 3.1.0

	 *

	 * @param WP_Admin_Bar $wp_admin_bar The WP_Admin_Bar instance, passed by reference.

	 */

	do_action_ref_array( 'admin_bar_menu', array( &$wp_admin_bar ) );

	/**

	 * Fires before the admin bar is rendered.

	 *

	 * @since 3.1.0

	 */

	do_action( 'wp_before_admin_bar_render' );

	$wp_admin_bar->render();

	/**

	 * Fires after the admin bar is rendered.

	 *

	 * @since 3.1.0

	 */

	do_action( 'wp_after_admin_bar_render' );

	$rendered = true;

}

/**

 * Adds the WordPress logo menu.

 *

 * @since 3.3.0

 *

 * @param WP_Admin_Bar $wp_admin_bar The WP_Admin_Bar instance.

 */

function wp_admin_bar_wp_menu( $wp_admin_bar ) {

	if ( current_user_can( 'read' ) ) {

		$about_url      = self_admin_url( 'about.php' );

		$contribute_url = self_admin_url( 'contribute.php' );

	} elseif ( is_multisite() ) {

		$about_url      = get_dashboard_url( get_current_user_id(), 'about.php' );

		$contribute_url = get_dashboard_url( get_current_user_id(), 'contribute.php' );

	} else {

		$about_url      = false;

		$contribute_url = false;

	}

	$wp_logo_menu_args = array(

		'id'    => 'wp-logo',

		'title' => '<span class="ab-icon" aria-hidden="true"></span><span class="screen-reader-text">' .

				/* translators: Hidden accessibility text. */

				__( 'About WordPress' ) .

			'</span>',

		'href'  => $about_url,

		'meta'  => array(

			'menu_title' => __( 'About WordPress' ),

		),

	);

	// Set tabindex="0" to make sub menus accessible when no URL is available.

	if ( ! $about_url ) {

		$wp_logo_menu_args['meta'] = array(

			'tabindex' => 0,

		);

	}

	$wp_admin_bar->add_node( $wp_logo_menu_args );

	if ( $about_url ) {

		// Add "About WordPress" link.

		$wp_admin_bar->add_node(

			array(

				'parent' => 'wp-logo',

				'id'     => 'about',

				'title'  => __( 'About WordPress' ),

				'href'   => $about_url,

			)

		);

	}

	if ( $contribute_url ) {

		// Add contribute link.

		$wp_admin_bar->add_node(

			array(

				'parent' => 'wp-logo',

				'id'     => 'contribute',

				'title'  => __( 'Get Involved' ),

				'href'   => $contribute_url,

			)

		);

	}

	// Add WordPress.org link.

	$wp_admin_bar->add_node(

		array(

			'parent' => 'wp-logo-external',

			'id'     => 'wporg',

			'title'  => __( 'WordPress.org' ),

			'href'   => __( 'https://wordpress.org/' ),

		)

	);

	// Add documentation link.

	$wp_admin_bar->add_node(

		array(

			'parent' => 'wp-logo-external',

			'id'     => 'documentation',

			'title'  => __( 'Documentation' ),

			'href'   => __( 'https://wordpress.org/documentation/' ),

		)

	);

	// Add learn link.

	$wp_admin_bar->add_node(

		array(

			'parent' => 'wp-logo-external',

			'id'     => 'learn',

			'title'  => __( 'Learn WordPress' ),

			'href'   => __( 'https://learn.wordpress.org/' ),

		)

	);

	// Add forums link.

	$wp_admin_bar->add_node(

		array(

			'parent' => 'wp-logo-external',

			'id'     => 'support-forums',

			'title'  => __( 'Support' ),

			'href'   => __( 'https://wordpress.org/support/forums/' ),

		)

	);

	// Add feedback link.

	$wp_admin_bar->add_node(

		array(

			'parent' => 'wp-logo-external',

			'id'     => 'feedback',

			'title'  => __( 'Feedback' ),

			'href'   => __( 'https://wordpress.org/support/forum/requests-and-feedback' ),

		)

	);

}

/**

 * Adds the sidebar toggle button.

 *

 * @since 3.8.0

 *

 * @param WP_Admin_Bar $wp_admin_bar The WP_Admin_Bar instance.

 */

function wp_admin_bar_sidebar_toggle( $wp_admin_bar ) {

	if ( is_admin() ) {

		$wp_admin_bar->add_node(

			array(

				'id'    => 'menu-toggle',

				'title' => '<span class="ab-icon" aria-hidden="true"></span><span class="screen-reader-text">' .

						/* translators: Hidden accessibility text. */

						__( 'Menu' ) .

					'</span>',

				'href'  => '#',

			)

		);

	}

}

/**

 * Adds the "My Account" item.

 *

 * @since 3.3.0

 *

 * @param WP_Admin_Bar $wp_admin_bar The WP_Admin_Bar instance.

 */

function wp_admin_bar_my_account_item( $wp_admin_bar ) {

	$user_id      = get_current_user_id();

	$current_user = wp_get_current_user();

	if ( ! $user_id ) {

		return;

	}

	if ( current_user_can( 'read' ) ) {

		$profile_url = get_edit_profile_url( $user_id );

	} elseif ( is_multisite() ) {

		$profile_url = get_dashboard_url( $user_id, 'profile.php' );

	} else {

		$profile_url = false;

	}

	$avatar = get_avatar( $user_id, 26 );

	/* translators: %s: Current user's display name. */

	$howdy = sprintf( __( 'Howdy, %s' ), '<span class="display-name">' . $current_user->display_name . '</span>' );

	$class = empty( $avatar ) ? '' : 'with-avatar';

	$wp_admin_bar->add_node(

		array(

			'id'     => 'my-account',

			'parent' => 'top-secondary',

			'title'  => $howdy . $avatar,

			'href'   => $profile_url,

			'meta'   => array(

				'class'      => $class,

				/* translators: %s: Current user's display name. */

				'menu_title' => sprintf( __( 'Howdy, %s' ), $current_user->display_name ),

				'tabindex'   => ( false !== $profile_url ) ? '' : 0,

			),

		)

	);

}

/**

 * Adds the "My Account" submenu items.

 *

 * @since 3.1.0

 *

 * @param WP_Admin_Bar $wp_admin_bar The WP_Admin_Bar instance.

 */

function wp_admin_bar_my_account_menu( $wp_admin_bar ) {

	$user_id      = get_current_user_id();

	$current_user = wp_get_current_user();

	if ( ! $user_id ) {

		return;

	}

	if ( current_user_can( 'read' ) ) {

		$profile_url = get_edit_profile_url( $user_id );

	} elseif ( is_multisite() ) {

		$profile_url = get_dashboard_url( $user_id, 'profile.php' );

	} else {

		$profile_url = false;

	}

	$wp_admin_bar->add_group(

		array(

			'parent' => 'my-account',

			'id'     => 'user-actions',

		)

	);

	$user_info  = get_avatar( $user_id, 64 );

	$user_info .= "<span class='display-name'>{$current_user->display_name}</span>";

	if ( $current_user->display_name !== $current_user->user_login ) {

		$user_info .= "<span class='username'>{$current_user->user_login}</span>";

	}

	if ( false !== $profile_url ) {

		$user_info .= "<span class='display-name edit-profile'>" . __( 'Edit Profile' ) . '</span>';

	}

	$wp_admin_bar->add_node(

		array(

			'parent' => 'user-actions',

			'id'     => 'user-info',

			'title'  => $user_info,

			'href'   => $profile_url,

		)

	);

	$wp_admin_bar->add_node(

		array(

			'parent' => 'user-actions',

			'id'     => 'logout',

			'title'  => __( 'Log Out' ),

			'href'   => wp_logout_url(),

		)

	);

}

/**

 * Adds the "Site Name" menu.

 *

 * @since 3.3.0

 *

 * @param WP_Admin_Bar $wp_admin_bar The WP_Admin_Bar instance.

 */

function wp_admin_bar_site_menu( $wp_admin_bar ) {

	// Don't show for logged out users.

	if ( ! is_user_logged_in() ) {

		return;

	}

	// Show only when the user is a member of this site, or they're a super admin.

	if ( ! is_user_member_of_blog() && ! current_user_can( 'manage_network' ) ) {

		return;

	}

	$blogname = get_bloginfo( 'name' );

	if ( ! $blogname ) {

		$blogname = preg_replace( '#^(https?://)?(www.)?#', '', get_home_url() );

	}

	if ( is_network_admin() ) {

		/* translators: %s: Site title. */

		$blogname = sprintf( __( 'Network Admin: %s' ), esc_html( get_network()->site_name ) );

	} elseif ( is_user_admin() ) {

		/* translators: %s: Site title. */

		$blogname = sprintf( __( 'User Dashboard: %s' ), esc_html( get_network()->site_name ) );

	}

	$title = wp_html_excerpt( $blogname, 40, '…' );

	$wp_admin_bar->add_node(

		array(

			'id'    => 'site-name',

			'title' => $title,

			'href'  => ( is_admin() || ! current_user_can( 'read' ) ) ? home_url( '/' ) : admin_url(),

			'meta'  => array(

				'menu_title' => $title,

			),

		)

	);

	// Create submenu items.

	if ( is_admin() ) {

		// Add an option to visit the site.

		$wp_admin_bar->add_node(

			array(

				'parent' => 'site-name',

				'id'     => 'view-site',

				'title'  => __( 'Visit Site' ),

				'href'   => home_url( '/' ),

			)

		);

		if ( is_blog_admin() && is_multisite() && current_user_can( 'manage_sites' ) ) {

			$wp_admin_bar->add_node(

				array(