Ticket #19206: 19206.php

<?php

/**
 * Display menu.
 *
 * @access private
 * @since 2.7.0
 *
 * @param array $menu
 * @param array $submenu
 * @param bool $submenu_as_parent
 */
function _wp_menu_output( $menu, $submenu, $submenu_as_parent = true ) {
        global $self, $parent_file, $submenu_file, $plugin_page, $pagenow, $typenow;

        $first_key = key( $menu );

        // 0 = title, 1 = capability, 2 = file, 3 = page title (ignore), 4 = class, 5 = id, 6 = icon src
        foreach ( $menu as $key => $item ) {

                $item = array_pad( $item, 7, '' );
                list( $title, $capability, $slug, $ignore, $class, $id, $icon_src ) = $item;

                // @todo: Clarify whether we should texturize or not.
                $title = wptexturize( $title );

                $has_submenu   = ! empty( $submenu[ $slug ] );
                $submenu_items = ( $has_submenu ) ? $submenu[ $slug ] : false;

                $parent = $slug;

                if ( $key == $first_key )
                        $class .= ' wp-first-item';

                if ( $has_submenu )
                        $class .= ' wp-has-submenu';

                if ( ( $parent_file && $slug == $parent_file ) || ( empty( $typenow ) && $self == $slug ) )
                        $class .= ( $has_submenu ) ? ' wp-has-current-submenu wp-menu-open' : ' current';
                else
                        $class .= ' wp-not-current-submenu';

                // GENERATE MENU ITEM
                if ( $submenu_as_parent && $has_submenu ) {
                        $submenu_items = array_values( $submenu_items );  // Re-index.
                        $item_slug     = $submenu_items[0][2];
                        $item_hook     = get_plugin_page_hook( $item_slug, $slug );

                } elseif ( ! empty( $slug ) && current_user_can( $capability ) ) {
                        $item_slug = $slug;
                        $item_hook = get_plugin_page_hook( $item_slug, 'admin.php' );
                }

                if ( isset( $item_slug ) ) {
                        $item_file = $item_slug;
                        if ( false !== ( $pos = strpos( $item_file, '?' ) ) )
                                $item_file = substr( $item_file, 0, $pos );

                        $item_url = $item_slug;
                        if ( ! empty( $item_hook ) || ( ('index.php' != $item_slug ) && file_exists( WP_PLUGIN_DIR . "/$item_file" ) ) ) {
                                $parent   = 'admin.php';
                                $item_url = "admin.php?page=$item_slug";
                        }
                }

                // RENDER MENU ITEM
                echo '<li id="' . esc_attr( $id ) . '" class="' . esc_attr( $class ) . '">';

                if ( false !== strpos( $class, 'wp-menu-separator' ) ) {
                        echo '<div class="separator"></div>';

                } elseif ( isset( $item_slug ) ) {
                        // Menu image
                        echo '<div class="wp-menu-image">';
                        echo '<a href="' . esc_url( $item_url ) . '">';

                        if ( ! empty( $icon_src ) ) {
                                if ( 'div' === $icon_src )
                                        echo '<br />';
                                else
                                        echo '<img src="' . esc_url( $icon_src ) . '" alt="" />';
                        }

                        echo '</a></div>';

                        // Menu arrow
                        echo '<div class="wp-menu-arrow"><div></div></div>';

                        // Menu title
                        echo '<a href="' . esc_url( $item_url ) . '" class="' . esc_attr( $class ) . '" tabindex="1">';
                        echo $title;
                        echo '</a>';
                }


                // HANDLE SUBMENUS
                if ( $has_submenu ) {

                        // Submenu wrapper.
                        echo "<div class='wp-submenu'><div class='wp-submenu-wrap'>";
                        echo "<div class='wp-submenu-head'>$title</div><ul>";

                        $menu_file = $slug;
                        if ( false !== ( $pos = strpos( $menu_file, '?' ) ) )
                                $menu_file = substr( $menu_file, 0, $pos );

                        // Clarify the location of the parent.
                         if ( ( 'admin.php' != $parent && file_exists( WP_PLUGIN_DIR . "/$menu_file" ) && ! is_dir( WP_PLUGIN_DIR . "/$slug" ) ) || file_exists( $menu_file ) )
                                $parent = $slug;
                        else
                                $parent = 'admin.php';

                        // Handle current for post_type=post|page|foo pages, which won't match $self.
                        $self_type = ! empty( $typenow ) ? $self . '?post_type=' . $typenow : 'nothing';

                        $first_sub_key = key( $submenu_items );

                        foreach ( $submenu_items as $sub_key => $sub_item ) {
                                // 0 = title, 1 = cap, 2 = slug, 3 = page title
                                list( $sub_title, $sub_cap, $sub_slug ) = $sub_item;

                                if ( ! current_user_can( $sub_cap ) )
                                        continue;

                                $sub_title = wptexturize( $sub_title );
                                $class = '';

                                if ( $sub_key == $first_sub_key )
                                        $class .= ' wp-first-item';

                                // Determine if we are on the current page.
                                if ( isset( $submenu_file ) ) {
                                        if ( $submenu_file == $sub_slug )
                                                $class .= ' current';

                                // If plugin_page is set the parent must either match the current page or not physically exist.
                                // This allows plugin pages with the same hook to exist under different parents.
                                } else if (
                                        ( ! isset( $plugin_page ) && $self == $sub_slug ) ||
                                        ( isset( $plugin_page ) && $plugin_page == $sub_slug &&
                                                ( $slug == $self_type || $slug == $self || file_exists( $menu_file ) === false )
                                        )
                                ) {
                                        $class .= ' current';
                                }

                                $sub_hook = get_plugin_page_hook( $sub_slug, $slug );
                                $sub_file  = $sub_slug;
                                if ( false !== ( $pos = strpos( $sub_file, '?' ) ) )
                                        $sub_file = substr( $sub_file, 0, $pos );


                                $sub_url = $sub_slug;
                                if ( ! empty( $sub_hook ) || ( ( 'index.php' != $sub_slug ) && file_exists( WP_PLUGIN_DIR . "/$sub_file" ) ) ) {
                                        $sub_url = add_query_arg( array( 'page' => $sub_slug ), $parent );
                                }

                                // RENDER SUBMENU ITEM
                                echo '<li class="' . esc_attr( $class ) . '">';
                                echo '<a href="' . esc_url( $sub_url ) . '" class="' . esc_attr( $class ) . '" tabindex="1">';
                                echo $sub_title;
                                echo '</a></li>';
                        }

                        echo '</ul></div></div>';
                }
                echo '</li>';
        }

        echo '<li id="collapse-menu" class="hide-if-no-js"><div id="collapse-button"><div></div></div>';
        echo '<span>' . esc_html__( 'Collapse menu' ) . '</span>';
        echo '</li>';
}