Add menu setup routines.

footer.php

@@ -45,7 +45,7 @@ $pb_network_contact_form = get_option( 'pb_network_contact_form' );
 			</div>
 		</div>
 		<div class="network-footer__block network-footer__menu">
-			<?php wp_nav_menu( 'network-footer-menu' ); ?>
+		<?php wp_nav_menu( [ 'theme_location' => 'network-footer-menu' ] ); ?>
 		</div>
 		</section>
 		<section class="footer__pressbooks">

functions.php

@@ -36,13 +36,16 @@ foreach ( $includes as $include ) {
 }
 require get_template_directory() . '/inc/intervention.php';
 
-add_action( 'admin_init', '\\Aldine\\Activation\\create_default_content' );
+add_action( 'after_switch_theme', '\\Aldine\\Activation\\create_default_content', 10 );
+add_action( 'after_switch_theme', '\\Aldine\\Activation\\create_menus', 11 );
+add_action( 'after_switch_theme', '\\Aldine\\Activation\\assign_menus', 12 );
 add_action( 'admin_bar_init', '\\Aldine\\Actions\\remove_admin_bar_callback' );
 add_action( 'after_setup_theme', '\\Aldine\\Actions\\setup' );
 add_action( 'after_setup_theme', '\\Aldine\\Actions\\content_width', 0 );
 add_action( 'wp_head', '\\Aldine\\Actions\\output_custom_colors' );
 add_filter( 'body_class', '\\Aldine\\Filters\\body_classes' );
 add_filter( 'excerpt_more', '\\Aldine\\Filters\\excerpt_more' );
+add_filter( 'wp_nav_menu_items', '\\Aldine\\Filters\\adjust_menu', 10, 2 );
 add_action( 'widgets_init', '\\Aldine\\Actions\\widgets_init' );
 add_action( 'wp_enqueue_scripts', '\\Aldine\\Actions\\enqueue_assets' );
 add_action( 'customize_register', '\\Aldine\\Customizer\\customize_register' );

header.php

@@ -72,24 +72,7 @@
 			</div>
 			<div class="header__end-container">
 				<nav class="header__nav js-header-nav" id="navigation">
-					<?php if ( defined( 'PB_PLUGIN_VERSION' ) ) : ?>
+					<?php wp_nav_menu( [ 'theme_location' => 'primary-menu' ] ); ?>
-						<a href="<?php echo home_url( '/catalog' ); ?>">Catalog</a>
-					<?php endif; ?>
-					<?php if ( get_option( 'pb_network_contact_form' ) ) : ?>
-						<a class="banner__navigation--contact" href="#contact">Contact</a>
-					<?php endif; ?>
-					<?php if ( ! is_user_logged_in() ) : ?>
-						<a href="<?php echo wp_login_url( get_permalink() ) ?>"><?php _e( 'Sign in', 'pressbooks-aldine' ) ?></a>
-						<?php if ( in_array( get_site_option( 'registration' ), [ 'user', 'all' ], true ) ) : ?>
-							<a href="<?php echo network_home_url( '/wp-signup.php' ); ?>"><?php _e( 'Sign up', 'pressbooks-aldine' ); ?></a>
-						<?php endif; ?>
-					<?php else : ?>
-						<?php if ( is_super_admin() || is_user_member_of_blog() ) : ?>
-						<a href="<?php echo admin_url(); ?>"><?php _e( 'Admin', 'pressbooks-aldine' ); ?></a>
-						<span class="sep">/</span>
-						<?php endif; ?>
-						<a href="<?php echo wp_logout_url( get_permalink() ); ?>"><?php _e( 'Sign out', 'pressbooks-aldine' ); ?></a>
-					<?php endif; ?>
 				</nav>
 				<a class="header__menu-icon js-header-menu-toggle" href="#navigation"><?php _e( 'Toggle Menu', 'pressbooks-book' ); ?><span class="header__menu-icon__icon"></span></a>
 			</div>

inc/actions/namespace.php

@@ -40,9 +40,10 @@ function setup() {
 		*/
 	add_theme_support( 'post-thumbnails' );
 
-	// This theme uses wp_nav_menu() in one location.
+	// This theme uses wp_nav_menu() in two locations.
 	register_nav_menus( [
-		'network-footer-menu' => __( 'Network Footer Menu', 'pressbooks-aldine' ),
+		'primary-menu' => __( 'Primary Menu', 'pressbooks-aldine' ),
+		'network-footer-menu' => __( 'Footer Menu', 'pressbooks-aldine' ),
 	] );
 
 	/*

inc/activation/namespace.php

@@ -64,3 +64,107 @@ function create_default_content() {
 		add_option( 'pb_aldine_activated', 1 );
 	}
 }
+
+/**
+ * Create default primary and footer menus.
+ */
+function create_menus() {
+	$menu_name = __( 'Primary Menu', 'pressbooks-aldine' );
+
+	if ( ! wp_get_nav_menu_object( $menu_name ) ) {
+		$menu_id = wp_create_nav_menu( $menu_name );
+
+		$catalog = get_page_by_title( __( 'Catalog', 'pressbooks-aldine' ) );
+		if ( $catalog && defined( 'PB_PLUGIN_VERSION' ) ) {
+			wp_update_nav_menu_item(
+				$menu_id,
+				0,
+				[
+					'menu-item-title' => __( 'Catalog', 'pressbooks-aldine' ),
+					'menu-item-type' => 'post_type',
+					'menu-item-object' => 'page',
+					'menu-item-object-id' => $catalog->ID,
+					'menu-item-status' => 'publish',
+				]
+			);
+		}
+	}
+
+	$menu_name = __( 'Footer Menu', 'pressbooks-aldine' );
+
+	if ( ! wp_get_nav_menu_object( $menu_name ) ) {
+		$menu_id = wp_create_nav_menu( $menu_name );
+
+		$about = get_page_by_title( __( 'About', 'pressbooks-aldine' ) );
+		if ( $about ) {
+			wp_update_nav_menu_item(
+				$menu_id,
+				0,
+				[
+					'menu-item-title' => __( 'About', 'pressbooks-aldine' ),
+					'menu-item-type' => 'post_type',
+					'menu-item-object' => 'page',
+					'menu-item-object-id' => $about->ID,
+					'menu-item-status' => 'publish',
+				]
+			);
+		}
+
+		$catalog = get_page_by_title( __( 'Catalog', 'pressbooks-aldine' ) );
+		if ( $catalog && defined( 'PB_PLUGIN_VERSION' ) ) {
+			wp_update_nav_menu_item(
+				$menu_id,
+				0,
+				[
+					'menu-item-title' => __( 'Catalog', 'pressbooks-aldine' ),
+					'menu-item-type' => 'post_type',
+					'menu-item-object' => 'page',
+					'menu-item-object-id' => $catalog->ID,
+					'menu-item-status' => 'publish',
+				]
+			);
+		}
+
+		$help = get_page_by_title( __( 'Help', 'pressbooks-aldine' ) );
+		if ( $help ) {
+			wp_update_nav_menu_item(
+				$menu_id,
+				0,
+				[
+					'menu-item-title' => __( 'Help', 'pressbooks-aldine' ),
+					'menu-item-type' => 'post_type',
+					'menu-item-object' => 'page',
+					'menu-item-object-id' => $help->ID,
+					'menu-item-status' => 'publish',
+				]
+			);
+		}
+	}
+}
+
+/**
+ * Check for presence of menus; if they exist, assign them to their locations.
+ */
+function assign_menus() {
+	$locations = get_theme_mod( 'nav_menu_locations' );
+
+	if ( ! empty( $locations ) ) {
+		foreach ( $locations as $id => $value ) {
+			switch ( $id ) {
+				case 'primary-menu':
+					$menu = get_term_by( 'name', 'Primary Menu', 'nav_menu' );
+				break;
+
+				case 'network-footer-menu':
+					$menu = get_term_by( 'name', 'Footer Menu', 'nav_menu' );
+				break;
+			}
+
+			if ( $menu ) {
+				$locations[ $id ] = $menu->term_id;
+			}
+		}
+
+		set_theme_mod( 'nav_menu_locations', $locations );
+	}
+}

inc/filters/namespace.php

@@ -33,7 +33,65 @@ function body_classes( array $classes ) {
 
 /**
  * Customize excerpt.
+ *
+ * @return string
  */
 function excerpt_more() {
 	return ' &hellip; <a href="' . get_permalink() . '">' . __( 'Continued', 'pressbooks-aldine' ) . '</a>';
 }
+
+/**
+ * Add things to the menu.
+ *
+ * @param string $items
+ * @param object $args
+ * @return string
+ */
+
+function adjust_menu( $items, $args ) {
+	if ( $args->theme_location === 'primary-menu' ) {
+		if ( ! is_front_page() ) {
+			$items = sprintf(
+				'<li><a href="%1$s">%2$s</a></li>',
+				'/',
+				__( 'Home', 'pressbooks-aldine' )
+			) . $items;
+		}
+		if ( get_option( 'pb_network_contact_form' ) ) {
+			$items .= sprintf(
+				'<li><a href="%1$s">%2$s</a></li>',
+				'#contact',
+				__( 'Contact', 'pressbooks-aldine' )
+			);
+		}
+		if ( ! is_user_logged_in() ) {
+			$items .= sprintf(
+				'<li><a href="%1$s">%2$s</a></li>',
+				wp_login_url( get_permalink() ),
+				__( 'Sign in', 'pressbooks-aldine' )
+			);
+			if ( in_array( get_site_option( 'registration' ), [ 'user', 'all' ], true ) ) {
+				$items .= sprintf(
+					'<li><a href="%1$s">%2$s</a></li>',
+					network_home_url( '/wp-signup.php' ),
+					__( 'Sign up', 'pressbooks-aldine' )
+				);
+			}
+		} else {
+			if ( is_super_admin() || is_user_member_of_blog() ) {
+				$items .= sprintf(
+					'<li><a href="%1$s">%2$s</a></li>',
+					admin_url(),
+					__( 'Admin', 'pressbooks-aldine' )
+				);
+			}
+			$items .= sprintf(
+				'<li><a href="%1$s">%2$s</a></li>',
+				wp_logout_url( get_permalink() ),
+				__( 'Sign out', 'pressbooks-aldine' )
+			);
+		}
+	}
+
+	return $items;
+}