summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat (limited to 'plugins/jetpack/modules/masterbar/admin-menu/class-base-admin-menu.php')
-rw-r--r--plugins/jetpack/modules/masterbar/admin-menu/class-base-admin-menu.php694
1 files changed, 694 insertions, 0 deletions
diff --git a/plugins/jetpack/modules/masterbar/admin-menu/class-base-admin-menu.php b/plugins/jetpack/modules/masterbar/admin-menu/class-base-admin-menu.php
new file mode 100644
index 00000000..5f3b1f51
--- /dev/null
+++ b/plugins/jetpack/modules/masterbar/admin-menu/class-base-admin-menu.php
@@ -0,0 +1,694 @@
+<?php
+/**
+ * Base Admin Menu file.
+ *
+ * @package automattic/jetpack
+ */
+
+namespace Automattic\Jetpack\Dashboard_Customizations;
+
+use Automattic\Jetpack\Status;
+
+/**
+ * Class Base_Admin_Menu
+ */
+abstract class Base_Admin_Menu {
+ /**
+ * Holds class instances.
+ *
+ * @var array
+ */
+ protected static $instances;
+
+ /**
+ * Whether the current request is a REST API request.
+ *
+ * @var bool
+ */
+ protected $is_api_request = false;
+
+ /**
+ * Domain of the current site.
+ *
+ * @var string
+ */
+ protected $domain;
+
+ /**
+ * The CSS classes used to hide the submenu items in navigation.
+ *
+ * @var string
+ */
+ const HIDE_CSS_CLASS = 'hide-if-js';
+
+ /**
+ * Identifier denoting that the default WordPress.com view should be used for a certain screen.
+ *
+ * @var string
+ */
+ const DEFAULT_VIEW = 'default';
+
+ /**
+ * Identifier denoting that the classic WP Admin view should be used for a certain screen.
+ *
+ * @var string
+ */
+ const CLASSIC_VIEW = 'classic';
+
+ /**
+ * Identifier denoting no preferred view has been set for a certain screen.
+ *
+ * @var string
+ */
+ const UNKNOWN_VIEW = 'unknown';
+
+ /**
+ * Base_Admin_Menu constructor.
+ */
+ protected function __construct() {
+ $this->is_api_request = defined( 'REST_REQUEST' ) && REST_REQUEST || 0 === strpos( $_SERVER['REQUEST_URI'], '/?rest_route=%2Fwpcom%2Fv2%2Fadmin-menu' );
+ $this->domain = ( new Status() )->get_site_suffix();
+
+ add_action( 'admin_menu', array( $this, 'reregister_menu_items' ), 99998 );
+ add_action( 'admin_menu', array( $this, 'hide_parent_of_hidden_submenus' ), 99999 );
+
+ if ( ! $this->is_api_request ) {
+ add_filter( 'admin_menu', array( $this, 'override_svg_icons' ), 99999 );
+ add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_scripts' ), 11 );
+ add_action( 'admin_head', array( $this, 'set_site_icon_inline_styles' ) );
+ add_filter( 'screen_settings', array( $this, 'register_dashboard_switcher' ), 99999 );
+ add_action( 'admin_menu', array( $this, 'handle_preferred_view' ), 99997 );
+ add_filter( 'admin_body_class', array( $this, 'admin_body_class' ) );
+ }
+ }
+
+ /**
+ * Returns class instance.
+ *
+ * @return Admin_Menu
+ */
+ public static function get_instance() {
+ $class = static::class;
+
+ if ( empty( static::$instances[ $class ] ) ) {
+ static::$instances[ $class ] = new $class();
+ }
+
+ return static::$instances[ $class ];
+ }
+
+ /**
+ * Updates the menu data of the given menu slug.
+ *
+ * @param string $slug Slug of the menu to update.
+ * @param string $url New menu URL.
+ * @param string $title New menu title.
+ * @param string $cap New menu capability.
+ * @param string $icon New menu icon.
+ * @param int $position New menu position.
+ * @return bool Whether the menu has been updated.
+ */
+ public function update_menu( $slug, $url = null, $title = null, $cap = null, $icon = null, $position = null ) {
+ global $menu, $submenu;
+
+ $menu_item = null;
+ $menu_position = null;
+
+ foreach ( $menu as $i => $item ) {
+ if ( $slug === $item[2] ) {
+ $menu_item = $item;
+ $menu_position = $i;
+ break;
+ }
+ }
+
+ if ( ! $menu_item ) {
+ return false;
+ }
+
+ if ( $title ) {
+ $menu_item[0] = $title;
+ $menu_item[3] = esc_attr( $title );
+ }
+
+ if ( $cap ) {
+ $menu_item[1] = $cap;
+ }
+
+ // Change parent slug only if there are no submenus (the slug of the 1st submenu will be used if there are submenus).
+ if ( $url ) {
+ $this->hide_submenu_page( $slug, $slug );
+
+ if ( ! isset( $submenu[ $slug ] ) || ! $this->has_visible_items( $submenu[ $slug ] ) ) {
+ $menu_item[2] = $url;
+ }
+ }
+
+ if ( $icon ) {
+ $menu_item[4] = 'menu-top';
+ $menu_item[6] = $icon;
+ }
+
+ // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
+ unset( $menu[ $menu_position ] );
+ if ( $position ) {
+ $menu_position = $position;
+ }
+ $this->set_menu_item( $menu_item, $menu_position );
+
+ // Only add submenu when there are other submenu items.
+ if ( $url && isset( $submenu[ $slug ] ) && $this->has_visible_items( $submenu[ $slug ] ) ) {
+ add_submenu_page( $slug, $menu_item[3], $menu_item[0], $menu_item[1], $url, null, 0 );
+ }
+
+ return true;
+ }
+
+ /**
+ * Updates the submenus of the given menu slug.
+ *
+ * It hides the menu by adding the `hide-if-js` css class and duplicates the submenu with the new slug.
+ *
+ * @param string $slug Menu slug.
+ * @param array $submenus_to_update Array of new submenu slugs.
+ */
+ public function update_submenus( $slug, $submenus_to_update ) {
+ global $submenu;
+
+ if ( ! isset( $submenu[ $slug ] ) ) {
+ return;
+ }
+
+ // This is needed for cases when the submenus to update have the same new slug.
+ $submenus_to_update = array_filter(
+ $submenus_to_update,
+ static function ( $item, $old_slug ) {
+ return $item !== $old_slug;
+ },
+ ARRAY_FILTER_USE_BOTH
+ );
+
+ /**
+ * Iterate over all submenu items and add the hide the submenus with CSS classes.
+ * This is done separately of the second foreach because the position of the submenu might change.
+ */
+ foreach ( $submenu[ $slug ] as $index => $item ) {
+ if ( ! array_key_exists( $item[2], $submenus_to_update ) ) {
+ continue;
+ }
+
+ $this->hide_submenu_element( $index, $slug, $item );
+ }
+
+ $submenu_items = array_values( $submenu[ $slug ] );
+
+ /**
+ * Iterate again over the submenu array. We need a copy of the array because add_submenu_page will add new elements
+ * to submenu array that might cause an infinite loop.
+ */
+ foreach ( $submenu_items as $i => $submenu_item ) {
+ if ( ! array_key_exists( $submenu_item[2], $submenus_to_update ) ) {
+ continue;
+ }
+
+ add_submenu_page(
+ $slug,
+ isset( $submenu_item[3] ) ? $submenu_item[3] : '',
+ isset( $submenu_item[0] ) ? $submenu_item[0] : '',
+ isset( $submenu_item[1] ) ? $submenu_item[1] : 'read',
+ $submenus_to_update[ $submenu_item[2] ],
+ '',
+ 0 === $i ? 0 : $i + 1
+ );
+ }
+ }
+
+ /**
+ * Adds a menu separator.
+ *
+ * @param int $position The position in the menu order this item should appear.
+ * @param string $cap Optional. The capability required for this menu to be displayed to the user.
+ * Default: 'read'.
+ */
+ public function add_admin_menu_separator( $position = null, $cap = 'read' ) {
+ $menu_item = array(
+ '', // Menu title (ignored).
+ $cap, // Required capability.
+ wp_unique_id( 'separator-custom-' ), // URL or file (ignored, but must be unique).
+ '', // Page title (ignored).
+ 'wp-menu-separator', // CSS class. Identifies this item as a separator.
+ );
+
+ $this->set_menu_item( $menu_item, $position );
+ }
+
+ /**
+ * Enqueues scripts and styles.
+ */
+ public function enqueue_scripts() {
+ $is_wpcom = defined( 'IS_WPCOM' ) && IS_WPCOM;
+
+ if ( $this->is_rtl() ) {
+ if ( $is_wpcom ) {
+ $css_path = 'rtl/admin-menu-rtl.css';
+ } else {
+ $css_path = 'admin-menu-rtl.css';
+ }
+ } else {
+ $css_path = 'admin-menu.css';
+ }
+
+ wp_enqueue_style(
+ 'jetpack-admin-menu',
+ plugins_url( $css_path, __FILE__ ),
+ array(),
+ JETPACK__VERSION
+ );
+
+ wp_style_add_data( 'jetpack-admin-menu', 'rtl', $this->is_rtl() );
+ $this->configure_colors_for_rtl_stylesheets();
+
+ wp_enqueue_script(
+ 'jetpack-admin-menu',
+ plugins_url( 'admin-menu.js', __FILE__ ),
+ array(),
+ JETPACK__VERSION,
+ true
+ );
+
+ wp_localize_script(
+ 'jetpack-admin-menu',
+ 'jetpackAdminMenu',
+ array( 'jitmDismissNonce' => wp_create_nonce( 'jitm_dismiss' ) )
+ );
+ }
+
+ /**
+ * Mark the core colors stylesheets as RTL depending on the value from the environment.
+ * This fixes a core issue where the extra RTL data is not added to the colors stylesheet.
+ * https://core.trac.wordpress.org/ticket/53090
+ */
+ public function configure_colors_for_rtl_stylesheets() {
+ wp_style_add_data( 'colors', 'rtl', $this->is_rtl() );
+ }
+
+ /**
+ * Injects inline-styles for site icon for when third-party plugins remove enqueued stylesheets.
+ * Unable to use wp_add_inline_style as plugins remove styles from all non-standard handles
+ */
+ public function set_site_icon_inline_styles() {
+ echo '<style>
+ #adminmenu .toplevel_page_site-card .wp-menu-image,
+ #adminmenu .toplevel_page_site-card .wp-menu-image img {
+ height: 32px;
+ width: 32px;
+ }
+ </style>';
+ }
+
+ /**
+ * Hide the submenu page based on slug and return the item that was hidden.
+ *
+ * Instead of actually removing the submenu item, a safer approach is to hide it and filter it in the API response.
+ * In this manner we'll avoid breaking third-party plugins depending on items that no longer exist.
+ *
+ * A false|array value is returned to be consistent with remove_submenu_page() function
+ *
+ * @param string $menu_slug The parent menu slug.
+ * @param string $submenu_slug The submenu slug that should be hidden.
+ * @return false|array
+ */
+ public function hide_submenu_page( $menu_slug, $submenu_slug ) {
+ global $submenu;
+
+ if ( ! isset( $submenu[ $menu_slug ] ) ) {
+ return false;
+ }
+
+ foreach ( $submenu[ $menu_slug ] as $i => $item ) {
+ if ( $submenu_slug !== $item[2] ) {
+ continue;
+ }
+
+ $this->hide_submenu_element( $i, $menu_slug, $item );
+
+ return $item;
+ }
+
+ return false;
+ }
+
+ /**
+ * Apply the hide-if-js CSS class to a submenu item.
+ *
+ * @param int $index The position of a submenu item in the submenu array.
+ * @param string $parent_slug The parent slug.
+ * @param array $item The submenu item.
+ */
+ public function hide_submenu_element( $index, $parent_slug, $item ) {
+ global $submenu;
+
+ $css_classes = empty( $item[4] ) ? self::HIDE_CSS_CLASS : $item[4] . ' ' . self::HIDE_CSS_CLASS;
+
+ // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
+ $submenu [ $parent_slug ][ $index ][4] = $css_classes;
+ }
+
+ /**
+ * Check if the menu has submenu items visible
+ *
+ * @param array $submenu_items The submenu items.
+ * @return bool
+ */
+ public function has_visible_items( $submenu_items ) {
+ $visible_items = array_filter(
+ $submenu_items,
+ array( $this, 'is_item_visible' )
+ );
+
+ return array() !== $visible_items;
+ }
+
+ /**
+ * Return the number of existing submenu items under the supplied parent slug.
+ *
+ * @param string $parent_slug The slug of the parent menu.
+ * @return int The number of submenu items under $parent_slug.
+ */
+ public function get_submenu_item_count( $parent_slug ) {
+ global $submenu;
+
+ if ( empty( $parent_slug ) || empty( $submenu[ $parent_slug ] ) || ! is_array( $submenu[ $parent_slug ] ) ) {
+ return 0;
+ }
+
+ return count( $submenu[ $parent_slug ] );
+ }
+
+ /**
+ * Adds the given menu item in the specified position.
+ *
+ * @param array $item The menu item to add.
+ * @param int $position The position in the menu order this item should appear.
+ */
+ public function set_menu_item( $item, $position = null ) {
+ global $menu;
+
+ // Handle position (avoids overwriting menu items already populated in the given position).
+ // Inspired by https://core.trac.wordpress.org/browser/trunk/src/wp-admin/menu.php?rev=49837#L160.
+ if ( null === $position ) {
+ $menu[] = $item; // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
+ } elseif ( isset( $menu[ "$position" ] ) ) {
+ $position = $position + substr( base_convert( md5( $item[2] . $item[0] ), 16, 10 ), -5 ) * 0.00001;
+ $menu[ "$position" ] = $item; // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
+ } else {
+ $menu[ $position ] = $item; // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
+ }
+ }
+
+ /**
+ * Determines whether the current locale is right-to-left (RTL).
+ */
+ public function is_rtl() {
+ return is_rtl();
+ }
+
+ /**
+ * Checks for any SVG icons in the menu, and overrides things so that
+ * we can display the icon in the correct colour for the theme.
+ */
+ public function override_svg_icons() {
+ global $menu;
+
+ $svg_items = array();
+ foreach ( $menu as $idx => $menu_item ) {
+ // Menu items that don't have icons, for example separators, have less than 7
+ // elements, partly because the 7th is the icon. So, if we have less than 7,
+ // let's skip it.
+ if ( count( $menu_item ) < 7 ) {
+ continue;
+ }
+
+ // If the hookname contain a URL than sanitize it by replacing invalid characters.
+ if ( false !== strpos( $menu_item[5], '://' ) ) {
+ $menu_item[5] = preg_replace( '![:/.]+!', '_', $menu_item[5] );
+ }
+
+ if ( 0 === strpos( $menu_item[6], 'data:image/svg+xml' ) && 'site-card' !== $menu_item[3] ) {
+ $svg_items[] = array(
+ 'icon' => $menu_item[6],
+ 'id' => $menu_item[5],
+ );
+ $menu_item[4] .= ' menu-svg-icon';
+ $menu_item[6] = 'none';
+ }
+ // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
+ $menu[ $idx ] = $menu_item;
+ }
+ if ( count( $svg_items ) > 0 ) {
+ $styles = '.menu-svg-icon .wp-menu-image { background-repeat: no-repeat; background-position: center center } ';
+ foreach ( $svg_items as $svg_item ) {
+ $styles .= sprintf( '#%s .wp-menu-image { background-image: url( "%s" ) }', $svg_item['id'], $svg_item['icon'] );
+ }
+ $styles .= '@supports ( mask-image: none ) or ( -webkit-mask-image: none ) { ';
+ $styles .= '.menu-svg-icon .wp-menu-image { background-image: none; } ';
+ $styles .= '.menu-svg-icon .wp-menu-image::before { background-color: currentColor; ';
+ $styles .= 'mask-size: contain; mask-position: center center; mask-repeat: no-repeat; ';
+ $styles .= '-webkit-mask-size: contain; -webkit-mask-position: center center; -webkit-mask-repeat: no-repeat; content:"" } ';
+ foreach ( $svg_items as $svg_item ) {
+ $styles .= sprintf(
+ '#%s .wp-menu-image { background-image: none; } #%s .wp-menu-image::before{ mask-image: url( "%s" ); -webkit-mask-image: url( "%s" ) }',
+ $svg_item['id'],
+ $svg_item['id'],
+ $svg_item['icon'],
+ $svg_item['icon']
+ );
+ }
+ $styles .= '}';
+
+ wp_register_style( 'svg-menu-overrides', false, array(), '20210331' );
+ wp_enqueue_style( 'svg-menu-overrides' );
+ wp_add_inline_style( 'svg-menu-overrides', $styles );
+ }
+ }
+
+ /**
+ * Hide menus that are unauthorized and don't have visible submenus and cases when the menu has the same slug
+ * as the first submenu item.
+ *
+ * This must be done at the end of menu and submenu manipulation in order to avoid performing this check each time
+ * the submenus are altered.
+ */
+ public function hide_parent_of_hidden_submenus() {
+ global $menu, $submenu;
+
+ $this->sort_hidden_submenus();
+
+ foreach ( $menu as $menu_index => $menu_item ) {
+ $has_submenus = isset( $submenu[ $menu_item[2] ] );
+
+ // Skip if the menu doesn't have submenus.
+ if ( ! $has_submenus ) {
+ continue;
+ }
+
+ // If the first submenu item is hidden then we should also hide the parent.
+ // Since the submenus are ordered by self::HIDE_CSS_CLASS (hidden submenus should be at the end of the array),
+ // we can say that if the first submenu is hidden then we should also hide the menu.
+ $first_submenu_item = array_values( $submenu[ $menu_item[2] ] )[0];
+ $is_first_submenu_visible = $this->is_item_visible( $first_submenu_item );
+
+ // if the user does not have access to the menu and the first submenu is hidden, then hide the menu.
+ if ( ! current_user_can( $menu_item[1] ) && ! $is_first_submenu_visible ) {
+ // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
+ $menu[ $menu_index ][4] = self::HIDE_CSS_CLASS;
+ }
+
+ // if the menu has the same slug as the first submenu then hide the submenu.
+ if ( $menu_item[2] === $first_submenu_item[2] && ! $is_first_submenu_visible ) {
+ // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
+ $menu[ $menu_index ][4] = self::HIDE_CSS_CLASS;
+ }
+ }
+ }
+
+ /**
+ * Sort the hidden submenus by moving them at the end of the array in order to avoid WP using them as default URLs.
+ *
+ * This operation has to be done at the end of submenu manipulation in order to guarantee that the hidden submenus
+ * are at the end of the array.
+ */
+ public function sort_hidden_submenus() {
+ global $submenu;
+
+ foreach ( $submenu as $menu_slug => $submenu_items ) {
+ foreach ( $submenu_items as $submenu_index => $submenu_item ) {
+ if ( $this->is_item_visible( $submenu_item ) ) {
+ continue;
+ }
+
+ unset( $submenu[ $menu_slug ][ $submenu_index ] );
+ // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
+ $submenu[ $menu_slug ][] = $submenu_item;
+ }
+ }
+ }
+
+ /**
+ * Check if the given item is visible or not in the admin menu.
+ *
+ * @param array $item A menu or submenu array.
+ */
+ public function is_item_visible( $item ) {
+ return ! isset( $item[4] ) || false === strpos( $item[4], self::HIDE_CSS_CLASS );
+ }
+
+ /**
+ * Sets the given view as preferred for the givens screen.
+ *
+ * @param string $screen Screen identifier.
+ * @param string $view Preferred view.
+ */
+ public function set_preferred_view( $screen, $view ) {
+ $preferred_views = $this->get_preferred_views();
+ $preferred_views[ $screen ] = $view;
+ update_user_option( get_current_user_id(), 'jetpack_admin_menu_preferred_views', $preferred_views );
+ }
+
+ /**
+ * Get the preferred views for all screens.
+ *
+ * @return array
+ */
+ public function get_preferred_views() {
+ $preferred_views = get_user_option( 'jetpack_admin_menu_preferred_views' );
+
+ if ( ! $preferred_views ) {
+ return array();
+ }
+
+ return $preferred_views;
+ }
+
+ /**
+ * Get the preferred view for the given screen.
+ *
+ * @param string $screen Screen identifier.
+ * @param bool $fallback_global_preference (Optional) Whether the global preference for all screens should be used
+ * as fallback if there is no specific preference for the given screen.
+ * Default: true.
+ * @return string
+ */
+ public function get_preferred_view( $screen, $fallback_global_preference = true ) {
+ $preferred_views = $this->get_preferred_views();
+
+ if ( ! isset( $preferred_views[ $screen ] ) ) {
+ if ( ! $fallback_global_preference ) {
+ return self::UNKNOWN_VIEW;
+ }
+ return $this->should_link_to_wp_admin() ? self::CLASSIC_VIEW : self::DEFAULT_VIEW;
+ }
+
+ return $preferred_views[ $screen ];
+ }
+
+ /**
+ * Gets the identifier of the current screen.
+ *
+ * @return string
+ */
+ public function get_current_screen() {
+ // phpcs:disable WordPress.Security.NonceVerification
+ global $pagenow;
+ $screen = isset( $_REQUEST['screen'] ) ? $_REQUEST['screen'] : $pagenow;
+ if ( isset( $_GET['post_type'] ) ) {
+ $screen = add_query_arg( 'post_type', $_GET['post_type'], $screen );
+ }
+ if ( isset( $_GET['taxonomy'] ) ) {
+ $screen = add_query_arg( 'taxonomy', $_GET['taxonomy'], $screen );
+ }
+ if ( isset( $_GET['page'] ) ) {
+ $screen = add_query_arg( 'page', $_GET['page'], $screen );
+ }
+ return sanitize_text_field( wp_unslash( $screen ) );
+ // phpcs:enable WordPress.Security.NonceVerification
+ }
+
+ /**
+ * Stores the preferred view for the current screen.
+ */
+ public function handle_preferred_view() {
+ // phpcs:disable WordPress.Security.NonceVerification
+ if ( ! isset( $_GET['preferred-view'] ) ) {
+ return;
+ }
+
+ // phpcs:disable WordPress.Security.NonceVerification
+ $preferred_view = $_GET['preferred-view'];
+
+ if ( ! in_array( $preferred_view, array( self::DEFAULT_VIEW, self::CLASSIC_VIEW ), true ) ) {
+ return;
+ }
+
+ $current_screen = $this->get_current_screen();
+
+ $this->set_preferred_view( $current_screen, $preferred_view );
+
+ /**
+ * Dashboard Quick switcher action triggered when a user switches to a different view.
+ *
+ * @module masterbar
+ *
+ * @since 9.9.1
+ *
+ * @param string The current screen of the user.
+ * @param string The preferred view the user selected.
+ */
+ \do_action( 'jetpack_dashboard_switcher_changed_view', $current_screen, $preferred_view );
+
+ if ( self::DEFAULT_VIEW === $preferred_view ) {
+ // Redirect to default view if that's the newly preferred view.
+ $menu_mappings = require __DIR__ . '/menu-mappings.php';
+ if ( isset( $menu_mappings[ $current_screen ] ) ) {
+ // Using `wp_redirect` intentionally because we're redirecting to Calypso.
+ wp_redirect( $menu_mappings[ $current_screen ] . $this->domain ); // phpcs:ignore WordPress.Security.SafeRedirect
+ exit;
+ }
+ } elseif ( self::CLASSIC_VIEW === $preferred_view ) {
+ // Removes the `preferred-view` param from the URL to avoid issues with
+ // screens that don't expect this param to be present in the URL.
+ wp_safe_redirect( remove_query_arg( 'preferred-view' ) );
+ exit;
+ }
+ // phpcs:enable WordPress.Security.NonceVerification
+ }
+
+ /**
+ * Adds the necessary CSS class to the admin body class.
+ *
+ * @param string $admin_body_classes Contains all the admin body classes.
+ *
+ * @return string
+ */
+ public function admin_body_class( $admin_body_classes ) {
+ return " is-nav-unification $admin_body_classes ";
+ }
+
+ /**
+ * Whether to use wp-admin pages rather than Calypso.
+ *
+ * Options:
+ * false - Calypso (Default).
+ * true - wp-admin.
+ *
+ * @return bool
+ */
+ public function should_link_to_wp_admin() {
+ return get_user_option( 'jetpack_admin_menu_link_destination' );
+ }
+
+ /**
+ * Create the desired menu output.
+ */
+ abstract public function reregister_menu_items();
+}