+ /**
+ * Unused since 3.5.0.
+ *
+ * @since 3.4.0
+ */
+ function attachment_fields_to_edit( $form_fields ) {
+ return $form_fields;
+ }
+
+ /**
+ * Unused since 3.5.0.
+ *
+ * @since 3.4.0
+ */
+ function filter_upload_tabs( $tabs ) {
+ return $tabs;
+ }
+
+ public function wp_set_background_image() {
+ if ( ! current_user_can('edit_theme_options') || ! isset( $_POST['attachment_id'] ) ) exit;
+ $attachment_id = absint($_POST['attachment_id']);
+ /** This filter is documented in wp-admin/includes/media.php */
+ $sizes = array_keys(apply_filters( 'image_size_names_choose', array('thumbnail' => __('Thumbnail'), 'medium' => __('Medium'), 'large' => __('Large'), 'full' => __('Full Size')) ));
+ $size = 'thumbnail';
+ if ( in_array( $_POST['size'], $sizes ) )
+ $size = esc_attr( $_POST['size'] );
+
+ update_post_meta( $attachment_id, '_wp_attachment_is_custom_background', get_option('stylesheet' ) );
+ $url = wp_get_attachment_image_src( $attachment_id, $size );
+ $thumbnail = wp_get_attachment_image_src( $attachment_id, 'thumbnail' );
+ set_theme_mod( 'background_image', esc_url_raw( $url[0] ) );
+ set_theme_mod( 'background_image_thumb', esc_url_raw( $thumbnail[0] ) );
+ exit;
+ }