From a415c29efee45520ae252d2aa28f1083a521cd7b Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 09:56:49 +0200
Subject: Adding upstream version 6.4.3+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 wp-includes/post-formats.php | 267 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 267 insertions(+)
 create mode 100644 wp-includes/post-formats.php

(limited to 'wp-includes/post-formats.php')

diff --git a/wp-includes/post-formats.php b/wp-includes/post-formats.php
new file mode 100644
index 0000000..282670b
--- /dev/null
+++ b/wp-includes/post-formats.php
@@ -0,0 +1,267 @@
+<?php
+/**
+ * Post format functions.
+ *
+ * @package WordPress
+ * @subpackage Post
+ */
+
+/**
+ * Retrieve the format slug for a post
+ *
+ * @since 3.1.0
+ *
+ * @param int|WP_Post|null $post Optional. Post ID or post object. Defaults to the current post in the loop.
+ * @return string|false The format if successful. False otherwise.
+ */
+function get_post_format( $post = null ) {
+	$post = get_post( $post );
+
+	if ( ! $post ) {
+		return false;
+	}
+
+	if ( ! post_type_supports( $post->post_type, 'post-formats' ) ) {
+		return false;
+	}
+
+	$_format = get_the_terms( $post->ID, 'post_format' );
+
+	if ( empty( $_format ) ) {
+		return false;
+	}
+
+	$format = reset( $_format );
+
+	return str_replace( 'post-format-', '', $format->slug );
+}
+
+/**
+ * Check if a post has any of the given formats, or any format.
+ *
+ * @since 3.1.0
+ *
+ * @param string|string[]  $format Optional. The format or formats to check. Default empty array.
+ * @param WP_Post|int|null $post   Optional. The post to check. Defaults to the current post in the loop.
+ * @return bool True if the post has any of the given formats (or any format, if no format specified),
+ *              false otherwise.
+ */
+function has_post_format( $format = array(), $post = null ) {
+	$prefixed = array();
+
+	if ( $format ) {
+		foreach ( (array) $format as $single ) {
+			$prefixed[] = 'post-format-' . sanitize_key( $single );
+		}
+	}
+
+	return has_term( $prefixed, 'post_format', $post );
+}
+
+/**
+ * Assign a format to a post
+ *
+ * @since 3.1.0
+ *
+ * @param int|object $post   The post for which to assign a format.
+ * @param string     $format A format to assign. Use an empty string or array to remove all formats from the post.
+ * @return array|WP_Error|false Array of affected term IDs on success. WP_Error on error.
+ */
+function set_post_format( $post, $format ) {
+	$post = get_post( $post );
+
+	if ( ! $post ) {
+		return new WP_Error( 'invalid_post', __( 'Invalid post.' ) );
+	}
+
+	if ( ! empty( $format ) ) {
+		$format = sanitize_key( $format );
+		if ( 'standard' === $format || ! in_array( $format, get_post_format_slugs(), true ) ) {
+			$format = '';
+		} else {
+			$format = 'post-format-' . $format;
+		}
+	}
+
+	return wp_set_post_terms( $post->ID, $format, 'post_format' );
+}
+
+/**
+ * Returns an array of post format slugs to their translated and pretty display versions
+ *
+ * @since 3.1.0
+ *
+ * @return string[] Array of post format labels keyed by format slug.
+ */
+function get_post_format_strings() {
+	$strings = array(
+		'standard' => _x( 'Standard', 'Post format' ), // Special case. Any value that evals to false will be considered standard.
+		'aside'    => _x( 'Aside', 'Post format' ),
+		'chat'     => _x( 'Chat', 'Post format' ),
+		'gallery'  => _x( 'Gallery', 'Post format' ),
+		'link'     => _x( 'Link', 'Post format' ),
+		'image'    => _x( 'Image', 'Post format' ),
+		'quote'    => _x( 'Quote', 'Post format' ),
+		'status'   => _x( 'Status', 'Post format' ),
+		'video'    => _x( 'Video', 'Post format' ),
+		'audio'    => _x( 'Audio', 'Post format' ),
+	);
+	return $strings;
+}
+
+/**
+ * Retrieves the array of post format slugs.
+ *
+ * @since 3.1.0
+ *
+ * @return string[] The array of post format slugs as both keys and values.
+ */
+function get_post_format_slugs() {
+	$slugs = array_keys( get_post_format_strings() );
+	return array_combine( $slugs, $slugs );
+}
+
+/**
+ * Returns a pretty, translated version of a post format slug
+ *
+ * @since 3.1.0
+ *
+ * @param string $slug A post format slug.
+ * @return string The translated post format name.
+ */
+function get_post_format_string( $slug ) {
+	$strings = get_post_format_strings();
+	if ( ! $slug ) {
+		return $strings['standard'];
+	} else {
+		return ( isset( $strings[ $slug ] ) ) ? $strings[ $slug ] : '';
+	}
+}
+
+/**
+ * Returns a link to a post format index.
+ *
+ * @since 3.1.0
+ *
+ * @param string $format The post format slug.
+ * @return string|WP_Error|false The post format term link.
+ */
+function get_post_format_link( $format ) {
+	$term = get_term_by( 'slug', 'post-format-' . $format, 'post_format' );
+	if ( ! $term || is_wp_error( $term ) ) {
+		return false;
+	}
+	return get_term_link( $term );
+}
+
+/**
+ * Filters the request to allow for the format prefix.
+ *
+ * @access private
+ * @since 3.1.0
+ *
+ * @param array $qvs
+ * @return array
+ */
+function _post_format_request( $qvs ) {
+	if ( ! isset( $qvs['post_format'] ) ) {
+		return $qvs;
+	}
+	$slugs = get_post_format_slugs();
+	if ( isset( $slugs[ $qvs['post_format'] ] ) ) {
+		$qvs['post_format'] = 'post-format-' . $slugs[ $qvs['post_format'] ];
+	}
+	$tax = get_taxonomy( 'post_format' );
+	if ( ! is_admin() ) {
+		$qvs['post_type'] = $tax->object_type;
+	}
+	return $qvs;
+}
+
+/**
+ * Filters the post format term link to remove the format prefix.
+ *
+ * @access private
+ * @since 3.1.0
+ *
+ * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
+ *
+ * @param string  $link
+ * @param WP_Term $term
+ * @param string  $taxonomy
+ * @return string
+ */
+function _post_format_link( $link, $term, $taxonomy ) {
+	global $wp_rewrite;
+	if ( 'post_format' !== $taxonomy ) {
+		return $link;
+	}
+	if ( $wp_rewrite->get_extra_permastruct( $taxonomy ) ) {
+		return str_replace( "/{$term->slug}", '/' . str_replace( 'post-format-', '', $term->slug ), $link );
+	} else {
+		$link = remove_query_arg( 'post_format', $link );
+		return add_query_arg( 'post_format', str_replace( 'post-format-', '', $term->slug ), $link );
+	}
+}
+
+/**
+ * Remove the post format prefix from the name property of the term object created by get_term().
+ *
+ * @access private
+ * @since 3.1.0
+ *
+ * @param object $term
+ * @return object
+ */
+function _post_format_get_term( $term ) {
+	if ( isset( $term->slug ) ) {
+		$term->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) );
+	}
+	return $term;
+}
+
+/**
+ * Remove the post format prefix from the name property of the term objects created by get_terms().
+ *
+ * @access private
+ * @since 3.1.0
+ *
+ * @param array        $terms
+ * @param string|array $taxonomies
+ * @param array        $args
+ * @return array
+ */
+function _post_format_get_terms( $terms, $taxonomies, $args ) {
+	if ( in_array( 'post_format', (array) $taxonomies, true ) ) {
+		if ( isset( $args['fields'] ) && 'names' === $args['fields'] ) {
+			foreach ( $terms as $order => $name ) {
+				$terms[ $order ] = get_post_format_string( str_replace( 'post-format-', '', $name ) );
+			}
+		} else {
+			foreach ( (array) $terms as $order => $term ) {
+				if ( isset( $term->taxonomy ) && 'post_format' === $term->taxonomy ) {
+					$terms[ $order ]->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) );
+				}
+			}
+		}
+	}
+	return $terms;
+}
+
+/**
+ * Remove the post format prefix from the name property of the term objects created by wp_get_object_terms().
+ *
+ * @access private
+ * @since 3.1.0
+ *
+ * @param array $terms
+ * @return array
+ */
+function _post_format_wp_get_object_terms( $terms ) {
+	foreach ( (array) $terms as $order => $term ) {
+		if ( isset( $term->taxonomy ) && 'post_format' === $term->taxonomy ) {
+			$terms[ $order ]->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) );
+		}
+	}
+	return $terms;
+}
-- 
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