init blog

wp-content/themes/Beginning/functions/ajax-load.php

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+<?php
+/**
+ * 判断 AJAX 加载页面
+ */
+function Bing_is_ajax_load_page(){
+	return isset( $_GET['ajax_load'] ) && $_GET['ajax_load'] == 'page' && Bing_mpanel( 'ajax_load_page' ) && !is_robots() && !is_feed() && !is_trackback();
+}
+
+/**
+ * AJAX 加载页面
+ */
+function Bing_ajax_load_page(){
+	if( Bing_is_ajax_load_page() ){
+		do_action( 'ajax_load_page' );
+		$GLOBALS['ajax_load_page_data'] = apply_filters( 'ajax_load_page_data', array() );
+		ob_start( 'Bing_ajax_load_page_data' );
+	}
+}
+add_action( 'template_redirect', 'Bing_ajax_load_page', 2 );
+
+/**
+ * 处理 AJAX 加载页面数据
+ */
+function Bing_ajax_load_page_data( $code ){
+	$defaults = array(
+		'code'            => $code,
+		'title'           => wp_get_document_title(),
+		'body_class'      => join( ' ', get_body_class( $class ) ),
+		'refresh_sidebar' => false,
+		'last_change'     => get_option( THEME_SLUG . '_last_change' )
+	);
+	$data = array_merge( $defaults, $GLOBALS['ajax_load_page_data'] );
+
+	return wp_json_encode( $data );
+}
+
+/**
+ * AJAX 加载页面时删除请求 AJAX 内容链接参数
+ */
+function Bing_ajax_load_page_delete_url_query(){
+	$search = array(
+		'?ajax_load=page&',
+		'?ajax_load=page',
+		'&ajax_load=page&',
+		'&ajax_load=page'
+	);
+
+	$replace = array(
+		'?',
+		'',
+		'&',
+		''
+	);
+
+	$_SERVER['REQUEST_URI'] = str_replace( $search, $replace, $_SERVER['REQUEST_URI'] );
+}
+add_action( 'ajax_load_page', 'Bing_ajax_load_page_delete_url_query', 2 );
+
+/**
+ * AJAX 加载页面时移除侧边栏
+ */
+add_action( 'ajax_load_page', 'Bing_remove_sidebar' );
+
+/**
+ * AJAX 加载页面时移除页脚
+ */
+function Bing_ajax_load_page_remove_footer(){
+	add_action( 'get_footer', '_Bing_ajax_load_die', 1 );
+}
+add_action( 'ajax_load_page', 'Bing_ajax_load_page_remove_footer' );
+
+/**
+ * AJAX 加载页面时在需要的时机结束程序
+ *
+ * 用来代替在 WordPress 4.7 测试版中被修改的 `_ajax_wp_die_handler()` 函数。
+ *
+ * @ignore
+ *
+ * @since Beginning 4.0.0
+ * @access private
+ */
+function _Bing_ajax_load_die() {
+	die;
+}
+
+/**
+ * AJAX 加载页面时禁止缓存
+ *
+ * @see nocache_headers()
+ */
+add_action( 'ajax_load_page', 'nocache_headers', 16 );
+
+/**
+ * AJAX 加载页面时某些情况重新加载侧边栏
+ */
+function Bing_ajax_load_page_refresh_sidebar( $data ){
+	if( Bing_mpanel( 'sidebar' ) && ( Bing_mpanel( 'sidebars_list' ) || is_date() ) ){
+		ob_start();
+
+			get_sidebar();
+
+		$data = array_merge( $data, array(
+			'refresh_sidebar' => true,
+			'sidebar_code'    => ob_get_clean()
+		) );
+	}
+
+	return $data;
+}
+add_action( 'ajax_load_page_data', 'Bing_ajax_load_page_refresh_sidebar' );
+
+/**
+ * 重定向时如果是 AJAX 加载页面则添加查询参数
+ */
+function Bing_redirect_ajax_load_page_query( $location ){
+	if( Bing_is_ajax_load_page() )
+		$location = add_query_arg( 'ajax_load', 'page', $location );
+
+	return $location;
+}
+add_filter( 'wp_redirect', 'Bing_redirect_ajax_load_page_query' );
+
+//End of page.