gnu-social/templates/attachments/view.html.twig

{% set thumbnail_parameters = {'id': attachment.getId(), 'w': config('thumbnail','width'), 'h': config('thumbnail','height')} %}
{% if attachment.mimetype starts with 'image/' %}
    <div>
        <figure>
            <img src="{{ path('attachment_thumbnail', thumbnail_parameters) }}" alt="{{ attachment.getTitle() }}">
            <figcaption><a
                        href="{{ path('attachment_show', {'id': attachment.getId()}) }}">{{ attachment.getTitle() }}</a>
            </figcaption>
        </figure>
    </div>
{% elseif attachment.mimetype starts with 'video/' %}
    <div>
        <video src="{{ path('attachment_view', {'id': attachment.getId()}) }}" controls
               poster="{{ path('attachment_thumbnail') }}, thumbnail_parameters">
            <i> <a href="{{ path('attachment_show', {'id': attachment.getId()}) }}">{{ attachment.getTitle() }}</a> </i>
        </video>
    </div>
{% else %}
    {% for show in handle_event('ShowAttachment', attachment) %}
        <div>
            {{ show | raw }}
        </div>
    {% else %}
        <div>
            <i> <a href="{{ path('attachment_show', {'id': attachment.getId()}) }}">{{ attachment.getTitle() }}</a> </i>
        </div>
    {% endfor %}
{% endif %}