- }
- else {
- $vpad = floor( ( 150 - $thumb->height ) /2 ) - 2;
- $thumbhtml = '<div class="thumb" style="padding: ' . $vpad . 'px 0;">'
- . $sk->makeKnownLinkObj( $nt, $thumb->toHtml() ) . '</div>';
+ } else {
+ $vpad = ( self::THUMB_PADDING + $this->mHeights - $thumb->height ) /2;
+
+ $imageParameters = array(
+ 'desc-link' => true,
+ 'desc-query' => $descQuery,
+ 'alt' => $alt,
+ );
+ # In the absence of both alt text and caption, fall back on providing screen readers with the filename as alt text
+ if ( $alt == '' && $text == '' ) {
+ $imageParameters['alt'] = $nt->getText();
+ }
+
+ # Set both fixed width and min-height.
+ $thumbhtml = "\n\t\t\t" .
+ '<div class="thumb" style="width: ' . ( $this->mWidths + self::THUMB_PADDING ) . 'px;">'
+ # Auto-margin centering for block-level elements. Needed now that we have video
+ # handlers since they may emit block-level elements as opposed to simple <img> tags.
+ # ref http://css-discuss.incutio.com/?page=CenteringBlockElement
+ . '<div style="margin:' . $vpad . 'px auto;">'
+ . $thumb->toHtml( $imageParameters ) . '</div></div>';
+
+ // Call parser transform hook
+ if ( $this->mParser && $img->getHandler() ) {
+ $img->getHandler()->parserTransformHook( $this->mParser, $img );
+ }