add scroll-to-top button

assets/js/back-to-top.js

@@ -0,0 +1 @@
+"use strict";function addBackToTop(){var o,t,e,n,i=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},r=i.backgroundColor,d=void 0===r?"#000":r,a=i.cornerOffset,c=void 0===a?20:a,s=i.diameter,l=void 0===s?56:s,u=i.ease,p=void 0===u?function(o){return.5*(1-Math.cos(Math.PI*o))}:u,m=i.id,h=void 0===m?"back-to-top":m,b=i.innerHTML,v=void 0===b?'<svg viewBox="0 0 24 24"><path d="M7.41 15.41L12 10.83l4.59 4.58L18 14l-6-6-6 6z"></path></svg>':b,f=i.onClickScrollTo,x=void 0===f?0:f,w=i.scrollContainer,g=void 0===w?document.body:w,k=i.scrollDuration,y=void 0===k?100:k,T=i.showWhenScrollTopIs,M=void 0===T?1:T,z=i.size,E=void 0===z?l:z,C=i.textColor,L=void 0===C?"#fff":C,N=i.zIndex,I=void 0===N?1:N,A=g===document.body,B=A&&document.documentElement;o=Math.round(.43*E),t=Math.round(.29*E),e="#"+h+"{background:"+d+";-webkit-border-radius:50%;-moz-border-radius:50%;border-radius:50%;bottom:"+c+"px;-webkit-box-shadow:0 2px 5px 0 rgba(0,0,0,.26);-moz-box-shadow:0 2px 5px 0 rgba(0,0,0,.26);box-shadow:0 2px 5px 0 rgba(0,0,0,.26);color:"+L+";cursor:pointer;display:block;height:"+E+"px;opacity:1;outline:0;position:fixed;right:"+c+"px;-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none;-webkit-transition:bottom .2s,opacity .2s;-o-transition:bottom .2s,opacity .2s;-moz-transition:bottom .2s,opacity .2s;transition:bottom .2s,opacity .2s;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;width:"+E+"px;z-index:"+I+"}#"+h+" svg{display:block;fill:currentColor;height:"+o+"px;margin:"+t+"px auto 0;width:"+o+"px}#"+h+".hidden{bottom:-"+E+"px;opacity:0}",(n=document.createElement("style")).appendChild(document.createTextNode(e)),document.head.insertAdjacentElement("afterbegin",n);var D=function(){var o=document.createElement("div");return o.id=h,o.className="hidden",o.innerHTML=v,o.addEventListener("click",function(o){o.preventDefault(),function(){var o="function"==typeof x?x():x,t=window,e=t.performance,n=t.requestAnimationFrame;if(y<=0||void 0===e||void 0===n)return q(o);var i=e.now(),r=j(),d=r-o;n(function o(t){var e=Math.min((t-i)/y,1);q(r-Math.round(p(e)*d)),e<1&&n(o)})}()}),document.body.appendChild(o),o}(),H=!0;function S(){j()>=M?function(){if(!H)return;D.className="",H=!1}():function(){if(H)return;D.className="hidden",H=!0}()}function j(){return g.scrollTop||B&&document.documentElement.scrollTop||0}function q(o){g.scrollTop=o,B&&(document.documentElement.scrollTop=o)}(A?window:g).addEventListener("scroll",S),S()}

config/_default/hugo.toml

@@ -11,7 +11,7 @@ enableInlineShortcodes = true
 # sectionPagesMenu = "main"
 
 [outputs]
-  home = ['html', 'rss', 'json']
+  home = ['html', 'rss']
   section = ['html']
   taxonomy = ['html',]
   term = ['html', 'rss']

layouts/_default/index.json

@@ -1,7 +0,0 @@
-{{- $.Scratch.Add "index" slice -}}
-{{- range .Site.Pages -}}
-  {{- if ne .Type "search" -}}
-    {{- $.Scratch.Add "index" (dict "title" .Title "body" .Plain "link" .Permalink "section" .Section "tags" .Params.tags) -}}
-  {{- end -}}
-{{- end -}}
-{{- jsonify (uniq ($.Scratch.Get "index")) -}}

layouts/partials/footer.html

@@ -3,7 +3,19 @@
 <p class="powered_by">{"powered_by": [{{- range $i, $link :=  .Site.Params.powerLinks }}{{ if $i }}, {{ end }}&quot;<a target="_blank" href="{{ $link.url }}">{{ $link.title }}</a>&quot;{{ end }}]}
 <br>&lt;<a target="_blank" href="https://github.com/jbowdre/runtimeterror">view source</a>&gt;</p>
 
+<!-- Back to Top button via https://github.com/vfeskov/vanilla-back-to-top -->
+{{ $jsToTop := resources.Get "js/back-to-top.js" | minify }}
+<script src="{{ $jsToTop.RelPermalink }}"></script>
+<script>addBackToTop({
+  diameter: 56,
+  backgroundColor: '#383838',
+  textColor: '#c45a5a'
+})</script>
+
+<!-- Search index via https://victoria.dev/blog/add-search-to-hugo-static-sites-with-lunr/ -->
 {{ partial "search-index.html" .}}
+
+<!-- Code Copy button via https://digitaldrummerj.me/hugo-add-copy-code-snippet-button/ -->
 {{ if (findRE "<pre" .Content 1) }}
   {{ $jsCopy := resources.Get "js/code-copy-button.js" | minify }}
   <script src="{{ $jsCopy.RelPermalink }}"></script>