HTML Examples/WP.iso/wordpress/wp-includes/admin-bar.php

PHP Script | 2017-10-09 | 28.0 KB | 1,053 lines

<?php
/**
 * Toolbar API: Top-level Toolbar functionality
 *
 * @package WordPress
 * @subpackage Toolbar
 * @since 3.1.0
 */

/**
 * Instantiate 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 $wp_admin_bar->menu member var.
 *
 * This is called very late on the footer actions so that it will render after
 * anything else being added to the footer.
 *
 * It includes the {@see 'admin_bar_menu'} action which should be used to hook in and
 * add new menus to the admin bar. That way you can be sure that you are adding at most
 * optimal point, right before the admin bar is rendered. This also gives you access to
 * the `$post` global, among others.
 *
 * @since 3.1.0
 *
 * @global WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_render() {
    global $wp_admin_bar;

    if ( ! is_admin_bar_showing() || ! is_object( $wp_admin_bar ) )
        return;

    /**
     * Load all necessary admin bar items.
     *
     * This is the hook used to add, remove, or manipulate admin bar items.
     *
     * @since 3.1.0
     *
     * @param WP_Admin_Bar $wp_admin_bar WP_Admin_Bar instance, passed by reference
     */
    do_action_ref_array( 'admin_bar_menu', array( &$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' );
}

/**
 * Add the WordPress logo menu.
 *
 * @since 3.3.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_wp_menu( $wp_admin_bar ) {
    if ( current_user_can( 'read' ) ) {
        $about_url = self_admin_url( 'about.php' );
    } elseif ( is_multisite() ) {
        $about_url = get_dashboard_url( get_current_user_id(), 'about.php' );
    } else {
        $about_url = false;
    }

    $wp_logo_menu_args = array(
        'id'    => 'wp-logo',
        'title' => '<span class="ab-icon"></span><span class="screen-reader-text">' . __( 'About WordPress' ) . '</span>',
        'href'  => $about_url,
    );

    // 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_menu( $wp_logo_menu_args );

    if ( $about_url ) {
        // Add "About WordPress" link
        $wp_admin_bar->add_menu( array(
            'parent' => 'wp-logo',
            'id'     => 'about',
            'title'  => __('About WordPress'),
            'href'   => $about_url,
        ) );
    }

    // Add WordPress.org link
    $wp_admin_bar->add_menu( array(
        'parent'    => 'wp-logo-external',
        'id'        => 'wporg',
        'title'     => __('WordPress.org'),
        'href'      => __('https://wordpress.org/'),
    ) );

    // Add codex link
    $wp_admin_bar->add_menu( array(
        'parent'    => 'wp-logo-external',
        'id'        => 'documentation',
        'title'     => __('Documentation'),
        'href'      => __('https://codex.wordpress.org/'),
    ) );

    // Add forums link
    $wp_admin_bar->add_menu( array(
        'parent'    => 'wp-logo-external',
        'id'        => 'support-forums',
        'title'     => __('Support Forums'),
        'href'      => __('https://wordpress.org/support/'),
    ) );

    // Add feedback link
    $wp_admin_bar->add_menu( array(
        'parent'    => 'wp-logo-external',
        'id'        => 'feedback',
        'title'     => __('Feedback'),
        'href'      => __('https://wordpress.org/support/forum/requests-and-feedback'),
    ) );
}

/**
 * Add the sidebar toggle button.
 *
 * @since 3.8.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_sidebar_toggle( $wp_admin_bar ) {
    if ( is_admin() ) {
        $wp_admin_bar->add_menu( array(
            'id'    => 'menu-toggle',
            'title' => '<span class="ab-icon"></span><span class="screen-reader-text">' . __( 'Menu' ) . '</span>',
            'href'  => '#',
        ) );
    }
}

/**
 * Add the "My Account" item.
 *
 * @since 3.3.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
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_menu( array(
        'id'        => 'my-account',
        'parent'    => 'top-secondary',
        'title'     => $howdy . $avatar,
        'href'      => $profile_url,
        'meta'      => array(
            'class'     => $class,
        ),
    ) );
}

/**
 * Add the "My Account" submenu items.
 *
 * @since 3.1.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
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>";

    $wp_admin_bar->add_menu( array(
        'parent' => 'user-actions',
        'id'     => 'user-info',
        'title'  => $user_info,
        'href'   => $profile_url,
        'meta'   => array(
            'tabindex' => -1,
        ),
    ) );

    if ( false !== $profile_url ) {
        $wp_admin_bar->add_menu( array(
            'parent' => 'user-actions',
            'id'     => 'edit-profile',
            'title'  => __( 'Edit My Profile' ),
            'href'   => $profile_url,
        ) );
    }

    $wp_admin_bar->add_menu( array(
        'parent' => 'user-actions',
        'id'     => 'logout',
        'title'  => __( 'Log Out' ),
        'href'   => wp_logout_url(),
    ) );
}

/**
 * Add the "Site Name" menu.
 *
 * @since 3.3.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
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 name */
        $blogname = sprintf( __( 'Network Admin: %s' ), esc_html( get_network()->site_name ) );
    } elseif ( is_user_admin() ) {
        /* translators: %s: site name */
        $blogname = sprintf( __( 'User Dashboard: %s' ), esc_html( get_network()->site_name ) );
    }

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

    $wp_admin_bar->add_menu( array(
        'id'    => 'site-name',
        'title' => $title,
        'href'  => ( is_admin() || ! current_user_can( 'read' ) ) ? home_url( '/' ) : admin_url(),
    ) );

    // Create submenu items.

    if ( is_admin() ) {
        // Add an option to visit the site.
        $wp_admin_bar->add_menu( 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_menu( array(
                'parent' => 'site-name',
                'id'     => 'edit-site',
                'title'  => __( 'Edit Site' ),
                'href'   => network_admin_url( 'site-info.php?id=' . get_current_blog_id() ),
            ) );
        }

    } else if ( current_user_can( 'read' ) ) {
        // We're on the front end, link to the Dashboard.
        $wp_admin_bar->add_menu( array(
            'parent' => 'site-name',
            'id'     => 'dashboard',
            'title'  => __( 'Dashboard' ),
            'href'   => admin_url(),
        ) );

        // Add the appearance submenu items.
        wp_admin_bar_appearance_menu( $wp_admin_bar );
    }
}

/**
 * Adds the "Customize" link to the Toolbar.
 *
 * @since 4.3.0
 *
 * @param WP_Admin_Bar $wp_admin_bar WP_Admin_Bar instance.
 * @global WP_Customize_Manager $wp_customize
 */
function wp_admin_bar_customize_menu( $wp_admin_bar ) {
    global $wp_customize;

    // Don't show for users who can't access the customizer or when in the admin.
    if ( ! current_user_can( 'customize' ) || is_admin() ) {
        return;
    }

    // Don't show if the user cannot edit a given customize_changeset post currently being previewed.
    if ( is_customize_preview() && $wp_customize->changeset_post_id() && ! current_user_can( get_post_type_object( 'customize_changeset' )->cap->edit_post, $wp_customize->changeset_post_id() ) ) {
        return;
    }

    $current_url = ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
    if ( is_customize_preview() && $wp_customize->changeset_uuid() ) {
        $current_url = remove_query_arg( 'customize_changeset_uuid', $current_url );
    }

    $customize_url = add_query_arg( 'url', urlencode( $current_url ), wp_customize_url() );
    if ( is_customize_preview() ) {
        $customize_url = add_query_arg( array( 'changeset_uuid' => $wp_customize->changeset_uuid() ), $customize_url );
    }

    $wp_admin_bar->add_menu( array(
        'id'     => 'customize',
        'title'  => __( 'Customize' ),
        'href'   => $customize_url,
        'meta'   => array(
            'class' => 'hide-if-no-customize',
        ),
    ) );
    add_action( 'wp_before_admin_bar_render', 'wp_customize_support_script' );
}

/**
 * Add the "My Sites/[Site Name]" menu and all submenus.
 *
 * @since 3.1.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_my_sites_menu( $wp_admin_bar ) {
    // Don't show for logged out users or single site mode.
    if ( ! is_user_logged_in() || ! is_multisite() )
        return;

    // Show only when the user has at least one site, or they're a super admin.
    if ( count( $wp_admin_bar->user->blogs ) < 1 && ! current_user_can( 'manage_network' ) ) {
        return;
    }

    if ( $wp_admin_bar->user->active_blog ) {
        $my_sites_url = get_admin_url( $wp_admin_bar->user->active_blog->blog_id, 'my-sites.php' );
    } else {
        $my_sites_url = admin_url( 'my-sites.php' );
    }

    $wp_admin_bar->add_menu( array(
        'id'    => 'my-sites',
        'title' => __( 'My Sites' ),
        'href'  => $my_sites_url,
    ) );

    if ( current_user_can( 'manage_network' ) ) {
        $wp_admin_bar->add_group( array(
            'parent' => 'my-sites',
            'id'     => 'my-sites-super-admin',
        ) );

        $wp_admin_bar->add_menu( array(
            'parent' => 'my-sites-super-admin',
            'id'     => 'network-admin',
            'title'  => __('Network Admin'),
            'href'   => network_admin_url(),
        ) );

        $wp_admin_bar->add_menu( array(
            'parent' => 'network-admin',
            'id'     => 'network-admin-d',
            'title'  => __( 'Dashboard' ),
            'href'   => network_admin_url(),
        ) );

        if ( current_user_can( 'manage_sites' ) ) {
            $wp_admin_bar->add_menu( array(
                'parent' => 'network-admin',
                'id'     => 'network-admin-s',
                'title'  => __( 'Sites' ),
                'href'   => network_admin_url( 'sites.php' ),
            ) );
        }

        if ( current_user_can( 'manage_network_users' ) ) {
            $wp_admin_bar->add_menu( array(
                'parent' => 'network-admin',
                'id'     => 'network-admin-u',
                'title'  => __( 'Users' ),
                'href'   => network_admin_url( 'users.php' ),
            ) );
        }

        if ( current_user_can( 'manage_network_themes' ) ) {
            $wp_admin_bar->add_menu( array(
                'parent' => 'network-admin',
                'id'     => 'network-admin-t',
                'title'  => __( 'Themes' ),
                'href'   => network_admin_url( 'themes.php' ),
            ) );
        }

        if ( current_user_can( 'manage_network_plugins' ) ) {
            $wp_admin_bar->add_menu( array(
                'parent' => 'network-admin',
                'id'     => 'network-admin-p',
                'title'  => __( 'Plugins' ),
                'href'   => network_admin_url( 'plugins.php' ),
            ) );
        }

        if ( current_user_can( 'manage_network_options' ) ) {
            $wp_admin_bar->add_menu( array(
                'parent' => 'network-admin',
                'id'     => 'network-admin-o',
                'title'  => __( 'Settings' ),
                'href'   => network_admin_url( 'settings.php' ),
            ) );
        }
    }

    // Add site links
    $wp_admin_bar->add_group( array(
        'parent' => 'my-sites',
        'id'     => 'my-sites-list',
        'meta'   => array(
            'class' => current_user_can( 'manage_network' ) ? 'ab-sub-secondary' : '',
        ),
    ) );

    foreach ( (array) $wp_admin_bar->user->blogs as $blog ) {
        switch_to_blog( $blog->userblog_id );

        $blavatar = '<div class="blavatar"></div>';

        $blogname = $blog->blogname;

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

        $menu_id  = 'blog-' . $blog->userblog_id;

        if ( current_user_can( 'read' ) ) {
            $wp_admin_bar->add_menu( array(
                'parent'    => 'my-sites-list',
                'id'        => $menu_id,
                'title'     => $blavatar . $blogname,
                'href'      => admin_url(),
            ) );

            $wp_admin_bar->add_menu( array(
                'parent' => $menu_id,
                'id'     => $menu_id . '-d',
                'title'  => __( 'Dashboard' ),
                'href'   => admin_url(),
            ) );
        } else {
            $wp_admin_bar->add_menu( array(
                'parent'    => 'my-sites-list',
                'id'        => $menu_id,
                'title'     => $blavatar . $blogname,
                'href'      => home_url(),
            ) );
        }

        if ( current_user_can( get_post_type_object( 'post' )->cap->create_posts ) ) {
            $wp_admin_bar->add_menu( array(
                'parent' => $menu_id,
                'id'     => $menu_id . '-n',
                'title'  => __( 'New Post' ),
                'href'   => admin_url( 'post-new.php' ),
            ) );
        }

        if ( current_user_can( 'edit_posts' ) ) {
            $wp_admin_bar->add_menu( array(
                'parent' => $menu_id,
                'id'     => $menu_id . '-c',
                'title'  => __( 'Manage Comments' ),
                'href'   => admin_url( 'edit-comments.php' ),
            ) );
        }

        $wp_admin_bar->add_menu( array(
            'parent' => $menu_id,
            'id'     => $menu_id . '-v',
            'title'  => __( 'Visit Site' ),
            'href'   => home_url( '/' ),
        ) );

        restore_current_blog();
    }
}

/**
 * Provide a shortlink.
 *
 * @since 3.1.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_shortlink_menu( $wp_admin_bar ) {
    $short = wp_get_shortlink( 0, 'query' );
    $id = 'get-shortlink';

    if ( empty( $short ) )
        return;

    $html = '<input class="shortlink-input" type="text" readonly="readonly" value="' . esc_attr( $short ) . '" />';

    $wp_admin_bar->add_menu( array(
        'id' => $id,
        'title' => __( 'Shortlink' ),
        'href' => $short,
        'meta' => array( 'html' => $html ),
    ) );
}

/**
 * Provide an edit link for posts and terms.
 *
 * @since 3.1.0
 *
 * @global WP_Term  $tag
 * @global WP_Query $wp_the_query
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_edit_menu( $wp_admin_bar ) {
    global $tag, $wp_the_query, $user_id;

    if ( is_admin() ) {
        $current_screen = get_current_screen();
        $post = get_post();

        if ( 'post' == $current_screen->base
            && 'add' != $current_screen->action
            && ( $post_type_object = get_post_type_object( $post->post_type ) )
            && current_user_can( 'read_post', $post->ID )
            && ( $post_type_object->public )
            && ( $post_type_object->show_in_admin_bar ) )
        {
            if ( 'draft' == $post->post_status ) {
                $preview_link = get_preview_post_link( $post );
                $wp_admin_bar->add_menu( array(
                    'id' => 'preview',
                    'title' => $post_type_object->labels->view_item,
                    'href' => esc_url( $preview_link ),
                    'meta' => array( 'target' => 'wp-preview-' . $post->ID ),
                ) );
            } else {
                $wp_admin_bar->add_menu( array(
                    'id' => 'view',
                    'title' => $post_type_object->labels->view_item,
                    'href' => get_permalink( $post->ID )
                ) );
            }
        } elseif ( 'edit' == $current_screen->base
             && ( $post_type_object = get_post_type_object( $current_screen->post_type ) )
             && ( $post_type_object->public )
             && ( $post_type_object->show_in_admin_bar )
             && ( get_post_type_archive_link( $post_type_object->name ) )
            && ! ( 'post' === $post_type_object->name && 'posts' === get_option( 'show_on_front' ) ) )
         {
             $wp_admin_bar->add_node( array(
                 'id' => 'archive',
                 'title' => $post_type_object->labels->view_items,
                 'href' => get_post_type_archive_link( $current_screen->post_type )
             ) );
        } elseif ( 'term' == $current_screen->base
            && isset( $tag ) && is_object( $tag ) && ! is_wp_error( $tag )
            && ( $tax = get_taxonomy( $tag->taxonomy ) )
            && $tax->public )
        {
            $wp_admin_bar->add_menu( array(
                'id' => 'view',
                'title' => $tax->labels->view_item,
                'href' => get_term_link( $tag )
            ) );
        } elseif ( 'user-edit' == $current_screen->base
            && isset( $user_id )
            && ( $user_object = get_userdata( $user_id ) )
            && $user_object->exists()
            && $view_link = get_author_posts_url( $user_object->ID ) )
        {
            $wp_admin_bar->add_menu( array(
                'id'    => 'view',
                'title' => __( 'View User' ),
                'href'  => $view_link,
            ) );
        }
    } else {
        $current_object = $wp_the_query->get_queried_object();

        if ( empty( $current_object ) )
            return;

        if ( ! empty( $current_object->post_type )
            && ( $post_type_object = get_post_type_object( $current_object->post_type ) )
            && current_user_can( 'edit_post', $current_object->ID )
            && $post_type_object->show_in_admin_bar
            && $edit_post_link = get_edit_post_link( $current_object->ID ) )
        {
            $wp_admin_bar->add_menu( array(
                'id' => 'edit',
                'title' => $post_type_object->labels->edit_item,
                'href' => $edit_post_link
            ) );
        } elseif ( ! empty( $current_object->taxonomy )
            && ( $tax = get_taxonomy( $current_object->taxonomy ) )
            && current_user_can( 'edit_term', $current_object->term_id )
            && $edit_term_link = get_edit_term_link( $current_object->term_id, $current_object->taxonomy ) )
        {
            $wp_admin_bar->add_menu( array(
                'id' => 'edit',
                'title' => $tax->labels->edit_item,
                'href' => $edit_term_link
            ) );
        } elseif ( is_a( $current_object, 'WP_User' )
            && current_user_can( 'edit_user', $current_object->ID )
            && $edit_user_link = get_edit_user_link( $current_object->ID ) )
        {
            $wp_admin_bar->add_menu( array(
                'id'    => 'edit',
                'title' => __( 'Edit User' ),
                'href'  => $edit_user_link,
            ) );
        }
    }
}

/**
 * Add "Add New" menu.
 *
 * @since 3.1.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_new_content_menu( $wp_admin_bar ) {
    $actions = array();

    $cpts = (array) get_post_types( array( 'show_in_admin_bar' => true ), 'objects' );

    if ( isset( $cpts['post'] ) && current_user_can( $cpts['post']->cap->create_posts ) )
        $actions[ 'post-new.php' ] = array( $cpts['post']->labels->name_admin_bar, 'new-post' );

    if ( isset( $cpts['attachment'] ) && current_user_can( 'upload_files' ) )
        $actions[ 'media-new.php' ] = array( $cpts['attachment']->labels->name_admin_bar, 'new-media' );

    if ( current_user_can( 'manage_links' ) )
        $actions[ 'link-add.php' ] = array( _x( 'Link', 'add new from admin bar' ), 'new-link' );

    if ( isset( $cpts['page'] ) && current_user_can( $cpts['page']->cap->create_posts ) )
        $actions[ 'post-new.php?post_type=page' ] = array( $cpts['page']->labels->name_admin_bar, 'new-page' );

    unset( $cpts['post'], $cpts['page'], $cpts['attachment'] );

    // Add any additional custom post types.
    foreach ( $cpts as $cpt ) {
        if ( ! current_user_can( $cpt->cap->create_posts ) )
            continue;

        $key = 'post-new.php?post_type=' . $cpt->name;
        $actions[ $key ] = array( $cpt->labels->name_admin_bar, 'new-' . $cpt->name );
    }
    // Avoid clash with parent node and a 'content' post type.
    if ( isset( $actions['post-new.php?post_type=content'] ) )
        $actions['post-new.php?post_type=content'][1] = 'add-new-content';

    if ( current_user_can( 'create_users' ) || ( is_multisite() && current_user_can( 'promote_users' ) ) ) {
        $actions[ 'user-new.php' ] = array( _x( 'User', 'add new from admin bar' ), 'new-user' );
    }

    if ( ! $actions )
        return;

    $title = '<span class="ab-icon"></span><span class="ab-label">' . _x( 'New', 'admin bar menu group label' ) . '</span>';

    $wp_admin_bar->add_menu( array(
        'id'    => 'new-content',
        'title' => $title,
        'href'  => admin_url( current( array_keys( $actions ) ) ),
    ) );

    foreach ( $actions as $link => $action ) {
        list( $title, $id ) = $action;

        $wp_admin_bar->add_menu( array(
            'parent'    => 'new-content',
            'id'        => $id,
            'title'     => $title,
            'href'      => admin_url( $link )
        ) );
    }
}

/**
 * Add edit comments link with awaiting moderation count bubble.
 *
 * @since 3.1.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_comments_menu( $wp_admin_bar ) {
    if ( !current_user_can('edit_posts') )
        return;

    $awaiting_mod = wp_count_comments();
    $awaiting_mod = $awaiting_mod->moderated;
    $awaiting_text = sprintf( _n( '%s comment awaiting moderation', '%s comments awaiting moderation', $awaiting_mod ), number_format_i18n( $awaiting_mod ) );

    $icon  = '<span class="ab-icon"></span>';
    $title = '<span class="ab-label awaiting-mod pending-count count-' . $awaiting_mod . '" aria-hidden="true">' . number_format_i18n( $awaiting_mod ) . '</span>';
    $title .= '<span class="screen-reader-text">' . $awaiting_text . '</span>';

    $wp_admin_bar->add_menu( array(
        'id'    => 'comments',
        'title' => $icon . $title,
        'href'  => admin_url('edit-comments.php'),
    ) );
}

/**
 * Add appearance submenu items to the "Site Name" menu.
 *
 * @since 3.1.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_appearance_menu( $wp_admin_bar ) {
    $wp_admin_bar->add_group( array( 'parent' => 'site-name', 'id' => 'appearance' ) );

    if ( current_user_can( 'switch_themes' ) ) {
        $wp_admin_bar->add_menu( array(
            'parent' => 'appearance',
            'id'     => 'themes',
            'title'  => __( 'Themes' ),
            'href'   => admin_url( 'themes.php' ),
        ) );
    }

    if ( ! current_user_can( 'edit_theme_options' ) ) {
        return;
    }

    if ( current_theme_supports( 'widgets' )  ) {
        $wp_admin_bar->add_menu( array(
            'parent' => 'appearance',
            'id'     => 'widgets',
            'title'  => __( 'Widgets' ),
            'href'   => admin_url( 'widgets.php' ),
        ) );
    }

    if ( current_theme_supports( 'menus' ) || current_theme_supports( 'widgets' ) )
        $wp_admin_bar->add_menu( array( 'parent' => 'appearance', 'id' => 'menus', 'title' => __('Menus'), 'href' => admin_url('nav-menus.php') ) );

    if ( current_theme_supports( 'custom-background' ) ) {
        $wp_admin_bar->add_menu( array(
            'parent' => 'appearance',
            'id'     => 'background',
            'title'  => __( 'Background' ),
            'href'   => admin_url( 'themes.php?page=custom-background' ),
            'meta'   => array(
                'class' => 'hide-if-customize',
            ),
        ) );
    }

    if ( current_theme_supports( 'custom-header' ) ) {
        $wp_admin_bar->add_menu( array(
            'parent' => 'appearance',
            'id'     => 'header',
            'title'  => __( 'Header' ),
            'href'   => admin_url( 'themes.php?page=custom-header' ),
            'meta'   => array(
                'class' => 'hide-if-customize',
            ),
        ) );
    }

}

/**
 * Provide an update link if theme/plugin/core updates are available.
 *
 * @since 3.1.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_updates_menu( $wp_admin_bar ) {

    $update_data = wp_get_update_data();

    if ( !$update_data['counts']['total'] )
        return;

    $title = '<span class="ab-icon"></span><span class="ab-label">' . number_format_i18n( $update_data['counts']['total'] ) . '</span>';
    $title .= '<span class="screen-reader-text">' . $update_data['title'] . '</span>';

    $wp_admin_bar->add_menu( array(
        'id'    => 'updates',
        'title' => $title,
        'href'  => network_admin_url( 'update-core.php' ),
        'meta'  => array(
            'title' => $update_data['title'],
        ),
    ) );
}

/**
 * Add search form.
 *
 * @since 3.3.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_search_menu( $wp_admin_bar ) {
    if ( is_admin() )
        return;

    $form  = '<form action="' . esc_url( home_url( '/' ) ) . '" method="get" id="adminbarsearch">';
    $form .= '<input class="adminbar-input" name="s" id="adminbar-search" type="text" value="" maxlength="150" />';
    $form .= '<label for="adminbar-search" class="screen-reader-text">' . __( 'Search' ) . '</label>';
    $form .= '<input type="submit" class="adminbar-button" value="' . __('Search') . '"/>';
    $form .= '</form>';

    $wp_admin_bar->add_menu( array(
        'parent' => 'top-secondary',
        'id'     => 'search',
        'title'  => $form,
        'meta'   => array(
            'class'    => 'admin-bar-search',
            'tabindex' => -1,
        )
    ) );
}

/**
 * Add secondary menus.
 *
 * @since 3.3.0
 *
 * @param WP_Admin_Bar $wp_admin_bar
 */
function wp_admin_bar_add_secondary_groups( $wp_admin_bar ) {
    $wp_admin_bar->add_group( array(
        'id'     => 'top-secondary',
        'meta'   => array(
            'class' => 'ab-top-secondary',
        ),
    ) );

    $wp_admin_bar->add_group( array(
        'parent' => 'wp-logo',
        'id'     => 'wp-logo-external',
        'meta'   => array(
            'class' => 'ab-sub-secondary',
        ),
    ) );
}

/**
 * Style and scripts for the admin bar.
 *
 * @since 3.1.0
 */
function wp_admin_bar_header() { ?>
<style type="text/css" media="print">#wpadminbar { display:none; }</style>
<?php
}

/**
 * Default admin bar callback.
 *
 * @since 3.1.0
 */
function _admin_bar_bump_cb() { ?>
<style type="text/css" media="screen">
    html { margin-top: 32px !important; }
    * html body { margin-top: 32px !important; }
    @media screen and ( max-width: 782px ) {
        html { margin-top: 46px !important; }
        * html body { margin-top: 46px !important; }
    }
</style>
<?php
}

/**
 * Sets the display status of the admin bar.
 *
 * This can be called immediately upon plugin load. It does not need to be called
 * from a function hooked to the {@see 'init'} action.
 *
 * @since 3.1.0
 *
 * @global bool $show_admin_bar
 *
 * @param bool $show Whether to allow the admin bar to show.
 */
function show_admin_bar( $show ) {
    global $show_admin_bar;
    $show_admin_bar = (bool) $show;
}

/**
 * Determine whether the admin bar should be showing.
 *
 * @since 3.1.0
 *
 * @global bool   $show_admin_bar
 * @global string $pagenow
 *
 * @return bool Whether the admin bar should be showing.
 */
function is_admin_bar_showing() {
    global $show_admin_bar, $pagenow;

    // For all these types of requests, we never want an admin bar.
    if ( defined('XMLRPC_REQUEST') || defined('DOING_AJAX') || defined('IFRAME_REQUEST') )
        return false;

    if ( is_embed() ) {
        return false;
    }

    // Integrated into the admin.
    if ( is_admin() )
        return true;

    if ( ! isset( $show_admin_bar ) ) {
        if ( ! is_user_logged_in() || 'wp-login.php' == $pagenow ) {
            $show_admin_bar = false;
        } else {
            $show_admin_bar = _get_admin_bar_pref();
        }
    }

    /**
     * Filters whether to show the admin bar.
     *
     * Returning false to this hook is the recommended way to hide the admin bar.
     * The user's display preference is used for logged in users.
     *
     * @since 3.1.0
     *
     * @param bool $show_admin_bar Whether the admin bar should be shown. Default false.
     */
    $show_admin_bar = apply_filters( 'show_admin_bar', $show_admin_bar );

    return $show_admin_bar;
}

/**
 * Retrieve the admin bar display preference of a user.
 *
 * @since 3.1.0
 * @access private
 *
 * @param string $context Context of this preference check. Defaults to 'front'. The 'admin'
 *     preference is no longer used.
 * @param int $user Optional. ID of the user to check, defaults to 0 for current user.
 * @return bool Whether the admin bar should be showing for this user.
 */
function _get_admin_bar_pref( $context = 'front', $user = 0 ) {
    $pref = get_user_option( "show_admin_bar_{$context}", $user );
    if ( false === $pref )
        return true;

    return 'true' === $pref;
}