wikimedia/mediawiki-core

/*!
 * Add magnify links to thumbs and resize broken media spans, where needed
 */
( function () {
    mw.hook( 'wikipage.content' ).add( function ( $content ) {
        $content.find(
            'figure[typeof~="mw:File/Thumb"] > :not(figcaption) .mw-file-element'
        ).each( function () {
            var inner = this.parentNode;
            var wrapper = inner.parentNode;

            if ( this.classList.contains( 'mw-broken-media' ) ) {
                // Resize broken media spans, where needed
                var isDefault = wrapper.classList.contains( 'mw-default-size' );
                if ( isDefault ) {
                    return;
                }
                if ( this.hasAttribute( 'data-width' ) ) {
                    this.style.width = this.getAttribute( 'data-width' ) + 'px';
                }
                if ( this.hasAttribute( 'data-height' ) ) {
                    this.style.height = this.getAttribute( 'data-height' ) + 'px';
                }
            } else {
                // Add magnify links to thumbs, where needed
                var resource = this.getAttribute( 'resource' );
                if ( !resource ) {
                    return;
                }
                if ( inner.classList.contains( 'mw-file-description' ) ) {
                    return;
                }
                var desc = this.ownerDocument.createElement( 'a' );
                desc.setAttribute( 'href', resource );
                // Using a different class than mw-file-description to avoid the
                // expectation that the media will be found inside it
                desc.classList.add( 'mw-file-magnify' );
                wrapper.insertBefore( desc, inner.nextSibling );
            }
        } );
    } );
}() );