init blog

wp-content/themes/Beginning/functions/nav-menu.php

@@ -0,0 +1,83 @@
+<?php
+/**
+ * 建立菜单
+ *
+ * @see register_nav_menus()
+ */
+function Bing_register_nav_menus(){
+	register_nav_menus( array(
+		'header_menu' => __( '导航菜单', 'Bing' ),
+		'footer_menu' => __( '页脚菜单', 'Bing' )
+	) );
+}
+add_action( 'after_setup_theme', 'Bing_register_nav_menus', 6 );
+
+/**
+ * 获取菜单名称
+ *
+ * @see get_registered_nav_menus()
+ * @see wp_get_nav_menu_object()
+ */
+function Bing_menu_name( $menu ){
+	$locations = get_registered_nav_menus();
+
+	$menu_locations = get_nav_menu_locations();
+	if( empty( $menu_locations[$menu] ) ) return $locations[$menu];
+
+	$menu_object = wp_get_nav_menu_object( $menu_locations[$menu] );
+	if( empty( $menu_object ) || is_wp_error( $menu_object ) ) return $locations[$menu];
+
+	return $menu_object->name;
+}
+
+/**
+ * 导航菜单未设置回调函数
+ *
+ * @see wp_nav_menu()
+ */
+function Bing_not_set_menu_fallback( $args ){
+	$menus = array(
+		array(
+			'url'     => home_url(),
+			'name'    => __( '首页', 'Bing' ),
+			'current' => is_home()
+		),
+		array(
+			'url'  => admin_url( 'nav-menus.php?action=locations' ),
+			'name' => __( '⊕添加菜单', 'Bing' )
+		)
+	);
+
+	$code = '<ul id="' . esc_attr( $args['theme_location'] ) . '">';
+
+		foreach ( $menus as $menu ) {
+			$current_clsss = isset( $menu['current'] ) && $menu['current'] ? 'current-menu-item"' : '';
+			$code .= sprintf( '<li class="%s"><a href="%s">%s</a></li>', $current_clsss, esc_url( $menu['url'] ), $menu['name'] );
+		}
+
+	$code .= '</ul>';
+
+	if ( !$args['echo'] )
+		return $code;
+
+	echo $code;
+}
+
+/**
+ * 调用菜单
+ *
+ * @see wp_nav_menu()
+ */
+function Bing_nav_menu( $theme_location, $args = array() ){
+	$defaults = array(
+		'theme_location' => $theme_location,
+		'container'      => false,
+		'items_wrap'     => '<ul id="' . esc_attr( $theme_location ) . '">%3$s</ul>',
+		'fallback_cb'    => 'Bing_not_set_menu_fallback'
+	);
+	$r = wp_parse_args( $args, $defaults );
+	$r['echo'] = false;
+	return wp_nav_menu( $r );
+}
+
+//End of page.