- if( $caption !== '' && !isset( $params['frame']['alt'] )
- && !isset( $params['frame']['framed'] )
- && !isset( $params['frame']['thumbnail'] )
- && !isset( $params['frame']['manualthumb'] ) ) {
- $params['frame']['alt'] = $params['frame']['title'];
+ if ( $imageIsFramed ) { # Framed image
+ if ( $caption === '' && !isset( $params['frame']['alt'] ) ) {
+ # No caption or alt text, add the filename as the alt text so
+ # that screen readers at least get some description of the image
+ $params['frame']['alt'] = $title->getText();
+ }
+ # Do not set $params['frame']['title'] because tooltips don't make sense
+ # for framed images
+ } else { # Inline image
+ if ( !isset( $params['frame']['alt'] ) ) {
+ # No alt text, use the "caption" for the alt text
+ if ( $caption !== '') {
+ $params['frame']['alt'] = $this->stripAltText( $caption, $holders );
+ } else {
+ # No caption, fall back to using the filename for the
+ # alt text
+ $params['frame']['alt'] = $title->getText();
+ }
+ }
+ # Use the "caption" for the tooltip text
+ $params['frame']['title'] = $this->stripAltText( $caption, $holders );