Ticket #27891: 27891.3.diff

src/wp-admin/admin-ajax.php

@@ -60 +60 @@
         'wp-remove-post-lock', 'dismiss-wp-pointer', 'upload-attachment', 'get-attachment',
         'query-attachments', 'save-attachment', 'save-attachment-compat', 'send-link-to-editor',
         'send-attachment-to-editor', 'save-attachment-order', 'heartbeat', 'get-revision-diffs',
-        'save-user-color-scheme', 'update-widget', 'query-themes', 'parse-embed'
+        'save-user-color-scheme', 'update-widget', 'query-themes', 'parse-embed', 'set-attachment-thumbnail'
 );
 
 // Register core Ajax calls.

src/wp-admin/includes/ajax-actions.php

@@ -1947 +1947 @@
 }
 
 /**
+ * Ajax handler for setting the featured image for an attachment.
+ *
+ * @since 4.0.0
+ */
+function wp_ajax_set_attachment_thumbnail() {
+        if ( empty( $_POST['urls'] ) || ! is_array( $_POST['urls'] ) ) {
+                wp_send_json_error();
+        }
+
+        $thumbnail_id = (int) $_POST['thumbnail_id'];
+        if ( empty( $thumbnail_id ) ) {
+                wp_send_json_error();
+        }       
+
+        $post_ids = array();
+        foreach ( $_POST['urls'] as $url ) {
+                $post_id = attachment_url_to_postid( $url );
+                if ( ! empty( $post_id ) ) {
+                        $post_ids[] = $post_id;
+                }
+        }
+
+        if ( empty( $post_ids ) ) {
+                wp_send_json_error();
+        }
+
+        $success = 0;
+        foreach ( $post_ids as $post_id ) {
+                if ( ! current_user_can( 'edit_post', $post_id ) ) {
+                        continue;
+                }
+
+                if ( set_post_thumbnail( $post_id, $thumbnail_id ) ) {
+                        $success++;
+                }
+        }
+
+        if ( 0 === $success ) {
+                wp_send_json_error();
+        } else {
+                wp_send_json_success();
+        }
+
+        wp_send_json_error();
+}
+
+/**
  * Ajax handler for date formatting.
  *
  * @since 3.1.0

src/wp-admin/includes/media.php

@@ -2642 +2642 @@
                         $attr['height'] = $h;
                 }
 
+                $thumb_id = get_post_thumbnail_id( $attachment_id );
+                if ( ! empty( $thumb_id ) ) {
+                        $attr['poster'] = wp_get_attachment_url( $thumb_id );
+                }
+
                 echo wp_video_shortcode( $attr );
 
         endif; ?>

src/wp-includes/js/media-audiovideo.js

@@ -692 +692 @@
 
                 renderSelectPosterImageToolbar: function() {
                         this.setPrimaryButton( l10n.videoSelectPosterImageTitle, function( controller, state ) {
-                                var attachment = state.get( 'selection' ).single();
+                                var urls = [], attachment = state.get( 'selection' ).single();
 
                                 controller.media.set( 'poster', attachment.get( 'url' ) );
                                 state.trigger( 'set-poster-image', controller.media.toJSON() );
+
+                                _.each( wp.media.view.settings.embedExts, function (ext) {
+                                        if ( controller.media.get( ext ) ) {
+                                                urls.push( controller.media.get( ext ) );
+                                        }
+                                } );
+
+                                wp.ajax.send( 'set-attachment-thumbnail', {
+                                        data : {
+                                                urls: urls,
+                                                thumbnail_id: attachment.get( 'id' )
+                                        }
+                                } );
                         } );
                 },
 

src/wp-includes/media.php

@@ -3218 +3218 @@
                 }
         }
 }
+
+/**
+ * Try to convert an attachment URL into a post ID.
+ *
+ * @since 4.0.0
+ *
+ * @global wpdb $wpdb WordPress database access abstraction object.
+ * @param string $url The URL to resolve.
+ * @return int The found post_id.
+ */
+function attachment_url_to_postid( $url ) {
+        global $wpdb;
+
+        $dir = wp_upload_dir();
+        $path = ltrim( $url, $dir['baseurl'] . '/' );
+
+        $sql = $wpdb->prepare(
+                "SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attached_file' AND meta_value = %s",
+                $path
+        );
+        $post_id = $wpdb->get_var( $sql );
+        if ( ! empty( $post_id ) ) {
+                return (int) $post_id;
+        }
+}
+ No newline at end of file