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- <!-- polyfill needed for IE11 and below -->
- <script type="text/javascript" src={{ "reveal-hugo/object-assign.js" | relURL }}></script>
- <!-- Printing and PDF exports -->
- <!-- use Hugo to create the right path for the print stylesheet, then conditionally include it -->
- {{- $reveal_location := $.Param "reveal_hugo.reveal_cdn" | default "reveal-js" -}}
- <a href="{{ printf "%s/css/print/" $reveal_location | relURL }}" id="print-location" style="display: none;"></a>
- <script type="text/javascript">
- var printLocationElement = document.getElementById('print-location');
- var link = document.createElement('link');
- link.rel = 'stylesheet';
- link.type = 'text/css';
- link.href = printLocationElement.href + (window.location.search.match(/print-pdf/gi) ? 'pdf.css' : 'paper.css');
- document.getElementsByTagName('head')[0].appendChild(link);
- </script>
- <!-- output Hugo parameters into JavaScript to be used when initializing Reveal.js -->
- <script type="application/json" id="reveal-hugo-site-params">{{ jsonify .Site.Params.reveal_hugo | safeJS }}</script>
- <script type="application/json" id="reveal-hugo-page-params">{{ jsonify .Page.Params.reveal_hugo | safeJS }}</script>
- <!-- load Reveal.js javascripts -->
- <script src="{{ printf "%s/js/reveal.js" $reveal_location | relURL }}"></script>
- <!-- load Reveal.js plugins -->
- <script type="text/javascript">
- // Hugo lowercases all params and Reveal.js needs camelcase
- // So params in Hugo must be stored in snakecase and we camelize them here
- function camelize(map) {
- if (map) {
- Object.keys(map).forEach(function(k) {
- newK = k.replace(/(\_\w)/g, function(m) { return m[1].toUpperCase() });
- if (newK != k) {
- map[newK] = map[k];
- delete map[k];
- }
- });
- }
- return map;
- }
- // pattern inspired by https://github.com/RealOrangeOne/hugo-theme-revealjs
- var revealHugoDefaults = { center: true, controls: true, history: true, progress: true, transition: "slide" };
- var revealHugoSiteParams = JSON.parse(document.getElementById('reveal-hugo-site-params').innerHTML);
- var revealHugoPageParams = JSON.parse(document.getElementById('reveal-hugo-page-params').innerHTML);
- // See all options - https://github.com/hakimel/reveal.js#configuration
- var options = Object.assign({},
- camelize(revealHugoDefaults),
- camelize(revealHugoSiteParams),
- camelize(revealHugoPageParams));
- Reveal.initialize(options);
- </script>
- <!-- load Reveal.js plugins after Reveal.js is initialized -->
- {{ if $.Param "reveal_hugo.load_default_plugins" | default true }}
- {{ $default_plugins := slice "plugin/markdown/marked.js" "plugin/markdown/markdown.js" "plugin/highlight/highlight.js" "plugin/zoom-js/zoom.js" }}
- {{ range $default_plugins }}
- <script type="text/javascript" src="{{ printf "%s/%s" $reveal_location . | relURL }}"></script>
- {{ end }}
- <!-- always use local version of the notes plugin since HTML file it requires isn't on CDN -->
- <script type="text/javascript" src="{{ "reveal-js/plugin/notes/notes.js" | relURL }}"></script>
- {{ end }}
- <!-- load custom plugins locally only (not CDN since many plugins won't exist there) -->
- {{ range $.Param "reveal_hugo.plugins" }}
- <script type="text/javascript" src="{{ . | relURL }}"></script>
- {{ end }}
- {{- $custom_js := $.Param "reveal_hugo.custom_js" -}}
- {{- if $custom_js -}}
- <script type="text/javascript" src="{{ $custom_js | relURL }}"></script>
- {{- end -}}
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