Initial commit.

2026-06-05 15:07:31 +09:00 · 2018-11-13 10:55:18 -05:00
commit 700fa6e6b0
6 changed files with 1243 additions and 0 deletions
@@ -0,0 +1,136 @@
+<?php
+
+if ( ! class_exists( 'Display_Posts_Remote_Add_Featured_Image' ) ) {
+
+	/**
+	 * Class Display_Posts_Remote_Add_Featured_Image
+	 *
+	 * Add the featured image meta to REST responses.
+	 *
+	 * @since 1.0
+	 */
+	class Display_Posts_Remote_Add_Featured_Image {
+
+		/**
+		 * @since 1.0
+		 * @var array
+		 */
+		public $postTypes = array( 'post' );
+
+		/**
+		 * Display_Posts_Remote_Add_Featured_Image constructor.
+		 *
+		 * @since 1.0
+		 */
+		public function __construct() {
+
+			add_action( 'rest_api_init', array( $this, 'addFeaturedImage' ) );
+		}
+
+		/**
+		 * Register the REST field to the post object.
+		 *
+		 * @since 1.0
+		 */
+		public function addFeaturedImage() {
+
+			/**
+			 * Add 'featured_image'
+			 */
+			register_rest_field(
+				$this->postTypes,
+				'featured_image',
+				array(
+					'get_callback'    => array( $this, 'getFeaturedImageMeta' ),
+					'update_callback' => NULL,
+					'schema'          => NULL,
+				)
+			);
+		}
+
+		/**
+		 * Callback for the REST field for `featured_image`.
+		 *
+		 * Populate the field with the featured image meta.
+		 *
+		 * @since 1.0
+		 *
+		 * @return array
+		 */
+		public function getFeaturedImageMeta() {
+
+			$data = array( 'full' => $this->getImageMeta( 'full' ) );
+
+			foreach ( $this->getImageSizes() as $size => $meta ) {
+
+				$imageMeta = $this->getImageMeta( $size );
+
+				if ( FALSE !== $imageMeta ) {
+
+					$data[ $size ] = $imageMeta;
+				}
+			}
+
+			return $data;
+		}
+
+		/**
+		 * Get all the registered image sizes.
+		 *
+		 * @since 1.0
+		 *
+		 * @return array
+		 */
+		public function getImageSizes() {
+
+			global $_wp_additional_image_sizes;
+
+			$sizes = array();
+
+			foreach ( get_intermediate_image_sizes() as $size ) {
+
+				if ( in_array( $size, array( 'thumbnail', 'medium', 'medium_large', 'large' ) ) ) {
+
+					$sizes[ $size ]['width']  = get_option( "{$size}_size_w" );
+					$sizes[ $size ]['height'] = get_option( "{$size}_size_h" );
+					$sizes[ $size ]['crop']   = (bool) get_option( "{$size}_crop" );
+
+				} elseif ( isset( $_wp_additional_image_sizes[ $size ] ) ) {
+
+					$sizes[ $size ] = array(
+						'width'  => $_wp_additional_image_sizes[ $size ]['width'],
+						'height' => $_wp_additional_image_sizes[ $size ]['height'],
+						'crop'   => $_wp_additional_image_sizes[ $size ]['crop'],
+					);
+				}
+			}
+
+			return $sizes;
+		}
+
+		/**
+		 * Get the image meta for the supplied image size.
+		 *
+		 * @since 1.0
+		 *
+		 * @param $size
+		 *
+		 * @return array|false
+		 */
+		public function getImageMeta( $size ) {
+
+			$id = get_the_ID();
+
+			if ( has_post_thumbnail( $id ) ) {
+
+				return wp_get_attachment_image_src( get_post_thumbnail_id( $id ), $size );
+
+			} else {
+
+				return FALSE;
+			}
+		}
+	}
+
+	new Display_Posts_Remote_Add_Featured_Image();
+}