{{ $is_list := .is_list }}
{{ $ := .content }}

{{ with $.Params.url_pdf }}
<a class="btn btn-primary btn-outline{{ if $is_list }} btn-xs{{end}}" href="{{ . | absURL }}">
  {{ i18n "btn_pdf" }}
</a>
{{ end }}
{{ with $.Params.url_slides }}
<a class="btn btn-primary btn-outline{{ if $is_list }} btn-xs{{end}}" href="{{ . | absURL }}">
  {{ i18n "btn_slides" }}
</a>
{{ end }}
{{ with $.Params.url_video }}
<a class="btn btn-primary btn-outline{{ if $is_list }} btn-xs{{end}}" href="{{ . | absURL }}">
  {{ i18n "btn_video" }}
</a>
{{ end }}
{{ with $.Params.url_code }}
<a class="btn btn-primary btn-outline{{ if $is_list }} btn-xs{{end}}" href="{{ . | absURL }}">
  {{ i18n "btn_code" }}
</a>
{{ end }}
{{ range $.Params.projects }}
  {{ with ($.Site.GetPage "page" "project" .) }}
  <a class="btn btn-primary btn-outline{{ if $is_list }} btn-xs{{end}}" href="{{ .Permalink }}">
    {{ i18n "btn_project" }}
  </a>
  {{ else }}
    {{ errorf "Please check that the `projects` parameter in the front matter of content in `content/talk/` refers to an existing filename (without .md extension) of a published project." }}
  {{ end }}
{{ end }}
{{ range $.Params.url_custom }}
<a class="btn btn-primary btn-outline{{ if $is_list }} btn-xs{{end}}" href="{{ .url | absURL }}">
  {{ .name }}
</a>
{{ end }}