You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
157 lines
3.1 KiB
PHP
157 lines
3.1 KiB
PHP
<?php
|
|
|
|
/**
|
|
* Provide utilities to interact and replace the current post akin to setup_postdata()
|
|
* but in a stacking manner.
|
|
*
|
|
* @since 4.0
|
|
*/
|
|
class ET_Post_Stack {
|
|
/**
|
|
* Post override stack.
|
|
*
|
|
* @var (WP_Post|null)[]
|
|
*/
|
|
protected static $stack = array();
|
|
|
|
/**
|
|
* Get the top post from the stack or the current one if the stack is empty.
|
|
*
|
|
* @since 4.0
|
|
*
|
|
* @param integer $offset Offset from the end of the array, 0 being the last post. Use negative integers.
|
|
*
|
|
* @return WP_Post|null
|
|
*/
|
|
public static function get( $offset = 0 ) {
|
|
global $post;
|
|
|
|
$index = count( self::$stack ) - 1 + $offset;
|
|
|
|
if ( empty( self::$stack ) && 0 === $index ) {
|
|
return $post;
|
|
}
|
|
|
|
return isset( self::$stack[ $index ] ) ? self::$stack[ $index ] : null;
|
|
}
|
|
|
|
/**
|
|
* Pop the top post off of the stack.
|
|
*
|
|
* @since 4.0
|
|
*
|
|
* @return void
|
|
*/
|
|
public static function pop() {
|
|
array_pop( self::$stack );
|
|
}
|
|
|
|
/**
|
|
* Setup a post as the global $post.
|
|
*
|
|
* @since 4.0
|
|
*
|
|
* @param WP_Post|null $with
|
|
* @param boolean $force
|
|
*
|
|
* @return void
|
|
*/
|
|
protected static function setup( $with, $force = false ) {
|
|
global $post;
|
|
|
|
if ( $force || ! ( $with && $post && $with->ID === $post->ID ) ) {
|
|
$post = $with;
|
|
setup_postdata( $post );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Equivalent to setup_postdata() but keeps a stack of posts so it can be nested.
|
|
* Pushes the specified post on the stack.
|
|
*
|
|
* @since 4.0
|
|
*
|
|
* @param WP_Post $with
|
|
*
|
|
* @return void
|
|
*/
|
|
public static function replace( $with ) {
|
|
global $post;
|
|
|
|
$force = empty( self::$stack );
|
|
|
|
if ( empty( self::$stack ) ) {
|
|
// Add the current post as the first in the stack even if it does not exist.
|
|
self::$stack[] = $post;
|
|
}
|
|
|
|
self::$stack[] = $with;
|
|
|
|
self::setup( $with, $force );
|
|
}
|
|
|
|
/**
|
|
* Restores the last post from the stack.
|
|
* The final restore will setup the post that was setup when the stack was last empty.
|
|
*
|
|
* @since 4.0
|
|
*
|
|
* @return void
|
|
*/
|
|
public static function restore() {
|
|
self::pop();
|
|
self::reset();
|
|
}
|
|
|
|
/**
|
|
* Resets the post to the one at the top of the stack.
|
|
*
|
|
* @since 4.0
|
|
*
|
|
* @return void
|
|
*/
|
|
public static function reset() {
|
|
if ( ! empty( self::$stack ) ) {
|
|
self::setup( self::get() );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the $post for the current true WordPress query post ignoring any posts that may be
|
|
* forced using setup_postdata().
|
|
*
|
|
* @since 4.0
|
|
*
|
|
* @return WP_Post|null
|
|
*/
|
|
public static function get_main_post() {
|
|
global $wp_query;
|
|
|
|
if ( ! $wp_query || 0 === $wp_query->post_count ) {
|
|
// Handle special case where there is no current post but once the_content()
|
|
// gets called the global $post is polluted and will no longer reset to null.
|
|
return null;
|
|
}
|
|
|
|
if ( empty( $wp_query->post ) ) {
|
|
return null;
|
|
}
|
|
|
|
return $wp_query->post;
|
|
}
|
|
|
|
/**
|
|
* Returns the post ID for the current true WordPress query post.
|
|
* See ::get_main_post() for more information.
|
|
*
|
|
* @since 4.0
|
|
*
|
|
* @return integer
|
|
*/
|
|
public static function get_main_post_id() {
|
|
$post = self::get_main_post();
|
|
|
|
return $post ? (int) $post->ID : 0;
|
|
}
|
|
}
|