{/* This is the article template. It defines how articles are formatted. */}
{{define "layout"}}
{{with .doc}}
<article class="Talks Article">
  <div id="topbar" class="wide">
    <h1>{{.Title}}</h1>
    {{with .Subtitle}}
      <h2 class="subtitle">{{.Subtitle}}</h2>
    {{end}}
    {{range .Authors}}
      <div class="author">
        {{range .Elem}}{{fmt .}}{{end}}
      </div>
    {{end}}
  </div>

  {{/* The Table of Contents is automatically inserted in this <div>.
       Do not delete this <div>. */}}
  <div id="nav" class="TOC"></div>

  {{range .Sections}}
    {{fmt  .}}
  {{end}}{{/* of Section block */}}

  <script src='/talks/static/play.js'></script>
</article>
{{end}}
{{end}}

{{define "TOC"}}
  <ul class="toc-outer">
  {{range .}}
    <li><a href="#TOC_{{.FormattedNumber}}">{{.Title}}</a></li>
    {{with .Sections}}{{template "TOC-Inner" .}}{{end}}
  {{end}}
  </ul>
{{end}}

{{define "TOC-Inner"}}
  <ul class="toc-inner">
  {{range .}}
    <li><a href="#TOC_{{.FormattedNumber}}">{{.Title}}</a></li>
    {{with .Sections}}{{template "TOC-Inner" .}}{{end}}
  {{end}}
  </ul>
{{end}}

{{define "newline"}}
{{/* No automatic line break. Paragraphs are free-form. */}}
{{end}}

{{define "fmt" -}}
  {{$kind := .TemplateName -}}
  {{if eq $kind "section"}}{{section . -}}
  {{else if eq $kind "list"}}{{list . -}}
  {{else if eq $kind "text"}}{{text . -}}
  {{else if eq $kind "code"}}{{code . -}}
  {{else if eq $kind "image"}}{{image . -}}
  {{else if eq $kind "video"}}{{video . -}}
  {{else if eq $kind "background"}}{{background . -}}
  {{else if eq $kind "iframe"}}{{iframe . -}}
  {{else if eq $kind "link"}}{{link . -}}
  {{else if eq $kind "html"}}{{html . -}}
  {{else if eq $kind "caption"}}{{caption . -}}
  {{else}}???{{$kind}}???
  {{- end -}}
{{end}}

{{define "section"}}
  <h{{add 1 (len .Number)}} id="TOC_{{.FormattedNumber}}">{{.FormattedNumber}} {{.Title}}</h{{add 1 (len .Number)}}>
  {{range .Elem}}{{fmt .}}{{end}}
{{end}}

{{define "list"}}
  <ul>
  {{range .Bullet}}
    <li>{{style .}}</li>
  {{end}}
  </ul>
{{end}}

{{define "text"}}
  {{if .Pre}}
  <div class="code"><pre>{{range .Lines}}{{.}}{{end}}</pre></div>
  {{else}}
  <p>
    {{range $i, $l := .Lines}}{{if $i}}{{template "newline"}}
    {{end}}{{presentStyle $l}}{{end}}
  </p>
  {{end}}
{{end}}

{{define "code"}}
  <div class="code{{if eq .Ext ".go"}} playground{{end}}" {{if .Edit}}contenteditable="true" spellcheck="false"{{end}}>{{raw .Text}}</div>
{{end}}

{{define "image"}}
<div class="image">
  <img src="{{.URL}}"{{with .Height}} height="{{.}}"{{end}}{{with .Width}} width="{{.}}"{{end}}>
</div>
{{end}}

{{define "video"}}
<div class="video">
  <video {{with .Height}} height="{{.}}"{{end}}{{with .Width}} width="{{.}}"{{end}} controls>
    <source src="{{.URL}}" type="{{.SourceType}}">
  </video>
</div>
{{end}}

{{define "background"}}
<div class="background">
  <img src="{{.URL}}">
</div>
{{end}}

{{define "iframe"}}
<iframe src="{{.URL}}"{{with .Height}} height="{{.}}"{{end}}{{with .Width}} width="{{.}}"{{end}}></iframe>
{{end}}

{{define "link"}}<p class="link"><a href="{{.URL}}" target="_blank">{{style .Label}}</a></p>{{end}}

{{define "html"}}{{.HTML}}{{end}}

{{define "caption"}}<figcaption>{{style .Text}}</figcaption>{{end}}

{{define "style" -}}
{{presentStyle . -}}
{{end}}