From 9382997b0095c3611bfd9d06e593b162175f1f39 Mon Sep 17 00:00:00 2001
From: welpo <welpo@users.noreply.github.com>
Date: Sun, 7 Jan 2024 20:10:10 +0100
Subject: [PATCH] fix same- page result navigation

---
 static/js/searchElasticlunr.js     | 38 +++++++++++++++++++-----------
 static/js/searchElasticlunr.min.js |  2 +-
 templates/partials/header.html     |  2 +-
 3 files changed, 26 insertions(+), 16 deletions(-)

diff --git a/static/js/searchElasticlunr.js b/static/js/searchElasticlunr.js
index 926071a26..0cf9281ca 100644
--- a/static/js/searchElasticlunr.js
+++ b/static/js/searchElasticlunr.js
@@ -2945,7 +2945,7 @@ window.onload = function () {
             // Display the results.
             let resultIdCounter = 0; // Counter to generate unique IDs.
             searchResults.forEach(function (result) {
-                if (result.doc.body !== '') {
+                if (result.doc.title || result.doc.path || result.doc.id) {
                     const resultDiv = document.createElement('div');
                     resultDiv.setAttribute('role', 'option');
                     resultDiv.id = 'result-' + resultIdCounter++;
@@ -2953,24 +2953,32 @@ window.onload = function () {
                     const linkElement = resultDiv.querySelector('a');
                     const titleElement = resultDiv.querySelector('span:first-child');
                     const snippetElement = resultDiv.querySelector('span:nth-child(2)');
-                    // Return a link with text fragment, scrolling and highlighting the search term.
-                    const encodedSearchTerm = encodeURIComponent(searchTerm);
-                    linkElement.href = `${result.ref}#:~:text=${encodedSearchTerm}`;
-                    titleElement.textContent = result.doc.title;
+
+                    // Determine the text for the title.
+                    titleElement.textContent =
+                        result.doc.title || result.doc.path || result.doc.id;
+
+                    // Determine if the body or description is available for the snippet.
+                    let snippetText = result.doc.body
+                        ? generateSnippet(result.doc.body, searchTerm.split(/\s+/))
+                        : result.doc.description
+                        ? result.doc.description
+                        : '';
+                    snippetElement.innerHTML = snippetText;
+
+                    // Create the hyperlink.
+                    let href = result.ref;
                     if (result.doc.body) {
-                        snippetElement.innerHTML = generateSnippet(
-                            result.doc.body,
-                            searchTerm.split(/\s+/)
-                        );
-                    } else {
-                        // Handle the case where body is undefined or empty
-                        console.error('Document body is undefined for result:', result);
-                        snippetElement.innerHTML = ''; // Or set some default message
+                        // Include text fragment if body is available.
+                        const encodedSearchTerm = encodeURIComponent(searchTerm);
+                        href += `#:~:text=${encodedSearchTerm}`;
                     }
+                    linkElement.href = href;
 
                     results.appendChild(resultDiv);
                 }
             });
+
             searchInput.setAttribute(
                 'aria-expanded',
                 resultIdCounter > 0 ? 'true' : 'false'
@@ -3093,11 +3101,13 @@ window.onload = function () {
         }
 
         if (event.key === 'Enter' && activeDiv) {
+            event.preventDefault();
+            event.stopImmediatePropagation();
             const anchorTag = activeDiv.querySelector('a');
             if (anchorTag) {
-                event.preventDefault();
                 window.location.href = anchorTag.getAttribute('href');
             }
+            closeModal(); // Necessary when linking to the current page.
         }
     });
 };
diff --git a/static/js/searchElasticlunr.min.js b/static/js/searchElasticlunr.min.js
index 3b8a13653..be49f4d31 100644
--- a/static/js/searchElasticlunr.min.js
+++ b/static/js/searchElasticlunr.min.js
@@ -1 +1 @@
-!function(){function g(e){var t=new g.Index;return t.pipeline.add(g.trimmer,g.stopWordFilter,g.stemmer),e&&e.call(t,t),t}var t;g.version="0.9.5",(lunr=g).utils={},g.utils.warn=(t=this,function(e){t.console&&console.warn&&console.warn(e)}),g.utils.toString=function(e){return null==e?"":e.toString()},(g.EventEmitter=function(){this.events={}}).prototype.addListener=function(){var e=Array.prototype.slice.call(arguments);const t=e.pop();if("function"!=typeof t)throw new TypeError("last argument must be a function");e.forEach(function(e){this.hasHandler(e)||(this.events[e]=[]),this.events[e].push(t)},this)},g.EventEmitter.prototype.removeListener=function(e,t){this.hasHandler(e)&&-1!==(t=this.events[e].indexOf(t))&&(this.events[e].splice(t,1),0===this.events[e].length)&&delete this.events[e]},g.EventEmitter.prototype.emit=function(e){if(this.hasHandler(e)){const t=Array.prototype.slice.call(arguments,1);this.events[e].forEach(function(e){e.apply(void 0,t)},this)}},g.EventEmitter.prototype.hasHandler=function(e){return e in this.events},(g.tokenizer=function(n){if(!arguments.length||null==n)return[];if(Array.isArray(n)){let e=n.filter(function(e){return null!=e}),t=(e=e.map(function(e){return g.utils.toString(e).toLowerCase()}),[]);return e.forEach(function(e){e=e.split(g.tokenizer.seperator),t=t.concat(e)},this),t}return n.toString().trim().toLowerCase().split(g.tokenizer.seperator)}).defaultSeperator=/[\s-]+/,g.tokenizer.seperator=g.tokenizer.defaultSeperator,g.tokenizer.setSeperator=function(e){null!=e&&"object"==typeof e&&(g.tokenizer.seperator=e)},g.tokenizer.resetSeperator=function(){g.tokenizer.seperator=g.tokenizer.defaultSeperator},g.tokenizer.getSeperator=function(){return g.tokenizer.seperator},(g.Pipeline=function(){this._queue=[]}).registeredFunctions={},g.Pipeline.registerFunction=function(e,t){t in g.Pipeline.registeredFunctions&&g.utils.warn("Overwriting existing registered function: "+t),e.label=t,g.Pipeline.registeredFunctions[t]=e},g.Pipeline.getRegisteredFunction=function(e){return e in g.Pipeline.registeredFunctions!=1?null:g.Pipeline.registeredFunctions[e]},g.Pipeline.warnIfFunctionNotRegistered=function(e){e.label&&e.label in this.registeredFunctions||g.utils.warn("Function is not registered with pipeline. This may cause problems when serialising the index.\n",e)},g.Pipeline.load=function(e){const n=new g.Pipeline;return e.forEach(function(e){var t=g.Pipeline.getRegisteredFunction(e);if(!t)throw new Error("Cannot load un-registered function: "+e);n.add(t)}),n},g.Pipeline.prototype.add=function(){Array.prototype.slice.call(arguments).forEach(function(e){g.Pipeline.warnIfFunctionNotRegistered(e),this._queue.push(e)},this)},g.Pipeline.prototype.after=function(e,t){if(g.Pipeline.warnIfFunctionNotRegistered(t),-1===(e=this._queue.indexOf(e)))throw new Error("Cannot find existingFn");this._queue.splice(e+1,0,t)},g.Pipeline.prototype.before=function(e,t){if(g.Pipeline.warnIfFunctionNotRegistered(t),-1===(e=this._queue.indexOf(e)))throw new Error("Cannot find existingFn");this._queue.splice(e,0,t)},g.Pipeline.prototype.remove=function(e){-1!==(e=this._queue.indexOf(e))&&this._queue.splice(e,1)},g.Pipeline.prototype.run=function(o){var e=[],t=o.length,i=this._queue.length;for(let n=0;n<t;n++){let t=o[n];for(let e=0;e<i&&void 0!==(t=this._queue[e](t,n,o))&&null!==t;e++);void 0!==t&&null!==t&&e.push(t)}return e},g.Pipeline.prototype.reset=function(){this._queue=[]},g.Pipeline.prototype.get=function(){return this._queue},g.Pipeline.prototype.toJSON=function(){return this._queue.map(function(e){return g.Pipeline.warnIfFunctionNotRegistered(e),e.label})},(g.Index=function(){this._fields=[],this._ref="id",this.pipeline=new g.Pipeline,this.documentStore=new g.DocumentStore,this.index={},this.eventEmitter=new g.EventEmitter,this._idfCache={},this.on("add","remove","update",function(){this._idfCache={}}.bind(this))}).prototype.on=function(){var e=Array.prototype.slice.call(arguments);return this.eventEmitter.addListener.apply(this.eventEmitter,e)},g.Index.prototype.off=function(e,t){return this.eventEmitter.removeListener(e,t)},g.Index.load=function(e){e.version!==g.version&&g.utils.warn("version mismatch: current "+g.version+" importing "+e.version);var t=new this;t._fields=e.fields,t._ref=e.ref,t.documentStore=g.DocumentStore.load(e.documentStore),t.pipeline=g.Pipeline.load(e.pipeline),t.index={};for(const n in e.index)t.index[n]=g.InvertedIndex.load(e.index[n]);return t},g.Index.prototype.addField=function(e){return this._fields.push(e),this.index[e]=new g.InvertedIndex,this},g.Index.prototype.setRef=function(e){return this._ref=e,this},g.Index.prototype.saveDocument=function(e){return this.documentStore=new g.DocumentStore(e),this},g.Index.prototype.addDoc=function(r,e){if(r){e=void 0===e||e;const s=r[this._ref];this.documentStore.addDoc(s,r),this._fields.forEach(function(e){var t=this.pipeline.run(g.tokenizer(r[e]));this.documentStore.addFieldLength(s,e,t.length);const n={};t.forEach(function(e){e in n?n[e]+=1:n[e]=1},this);for(const i in n){var o=n[i],o=Math.sqrt(o);this.index[e].addToken(i,{ref:s,tf:o})}},this),e&&this.eventEmitter.emit("add",r,this)}},g.Index.prototype.removeDocByRef=function(e,t){e&&!1!==this.documentStore.isDocStored()&&this.documentStore.hasDoc(e)&&(e=this.documentStore.getDoc(e),this.removeDoc(e,!1))},g.Index.prototype.removeDoc=function(e,t){if(e){t=void 0===t||t;const n=e[this._ref];this.documentStore.hasDoc(n)&&(this.documentStore.removeDoc(n),this._fields.forEach(function(t){this.pipeline.run(g.tokenizer(e[t])).forEach(function(e){this.index[t].removeToken(e,n)},this)},this),t)&&this.eventEmitter.emit("remove",e,this)}},g.Index.prototype.updateDoc=function(e,t){t=void 0===t||t,this.removeDocByRef(e[this._ref],!1),this.addDoc(e,!1),t&&this.eventEmitter.emit("update",e,this)},g.Index.prototype.idf=function(e,t){var n="@"+t+"/"+e;return Object.prototype.hasOwnProperty.call(this._idfCache,n)?this._idfCache[n]:(t=this.index[t].getDocFreq(e),e=1+Math.log(this.documentStore.length/(t+1)),this._idfCache[n]=e)},g.Index.prototype.getFields=function(){return this._fields.slice()},g.Index.prototype.search=function(t,e){if(!t)return[];t="string"==typeof t?{any:t}:JSON.parse(JSON.stringify(t));let n=null;null!=e&&(n=JSON.stringify(e));var o=new g.Configuration(n,this.getFields()).get(),i={},r=Object.keys(t);for(let e=0;e<r.length;e++){var s=r[e];i[s]=this.pipeline.run(g.tokenizer(t[s]))}var l={};for(const p in o){var u=i[p]||i.any;if(u){var a=this.fieldSearch(u,p,o),c=o[p].boost;for(h in a)a[h]=a[h]*c;for(h in a)h in l?l[h]+=a[h]:l[h]=a[h]}}var d,h,f=[];for(h in l)d={ref:h,score:l[h]},this.documentStore.hasDoc(h)&&(d.doc=this.documentStore.getDoc(h)),f.push(d);return f.sort(function(e,t){return t.score-e.score}),f},g.Index.prototype.fieldSearch=function(e,a,t){const c=t[a].bool,n=t[a].expand;t=t[a].boost;let d=null;const h={};if(0!==t)return e.forEach(function(l){let e=[l];!0===n&&(e=this.index[a].expandToken(l));const u={};e.forEach(function(n){let e=this.index[a].getDocs(n);var o=this.idf(n,a);if(d&&"AND"===c){var i,t={};for(i in d)i in e&&(t[i]=e[i]);e=t}for(i in n===l&&this.fieldSearchStats(h,n,e),e){var r=this.index[a].getTermFrequency(n,i),s=this.documentStore.getFieldLength(i,a);let e=1,t=(0!==s&&(e=1/Math.sqrt(s)),1);n!==l&&(t=.15*(1-(n.length-l.length)/n.length)),s=r*o*e*t,i in u?u[i]+=s:u[i]=s}},this),d=this.mergeScores(d,u,c)},this),d=this.coordNorm(d,h,e.length)},g.Index.prototype.mergeScores=function(e,t,n){if(!e)return t;if("AND"===n){var o={};for(i in t)i in e&&(o[i]=e[i]+t[i]);return o}for(var i in t)i in e?e[i]+=t[i]:e[i]=t[i];return e},g.Index.prototype.fieldSearchStats=function(e,t,n){for(const o in n)o in e?e[o].push(t):e[o]=[t]},g.Index.prototype.coordNorm=function(e,t,n){for(const i in e){var o;i in t&&(o=t[i].length,e[i]=e[i]*o/n)}return 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e},g.clearStopWords=function(){g.stopWordFilter.stopWords={}},g.addStopWords=function(e){null!=e&&!1!==Array.isArray(e)&&e.forEach(function(e){g.stopWordFilter.stopWords[e]=!0},this)},g.resetStopWords=function(){g.stopWordFilter.stopWords=g.defaultStopWords},g.stopWordFilter.stopWords=g.defaultStopWords={"":!0,a:!0,able:!0,about:!0,across:!0,after:!0,all:!0,almost:!0,also:!0,am:!0,among:!0,an:!0,and:!0,any:!0,are:!0,as:!0,at:!0,be:!0,because:!0,been:!0,but:!0,by:!0,can:!0,cannot:!0,could:!0,dear:!0,did:!0,do:!0,does:!0,either:!0,else:!0,ever:!0,every:!0,for:!0,from:!0,get:!0,got:!0,had:!0,has:!0,have:!0,he:!0,her:!0,hers:!0,him:!0,his:!0,how:!0,however:!0,i:!0,if:!0,in:!0,into:!0,is:!0,it:!0,its:!0,just:!0,least:!0,let:!0,like:!0,likely:!0,may:!0,me:!0,might:!0,most:!0,must:!0,my:!0,neither:!0,no:!0,nor:!0,not:!0,of:!0,off:!0,often:!0,on:!0,only:!0,or:!0,other:!0,our:!0,own:!0,rather:!0,said:!0,say:!0,says:!0,she:!0,should:!0,since:!0,so:!0,some:!0,than:!0,that:!0,the:!0,their:!0,them:!0,then:!0,there:!0,these:!0,they:!0,this:!0,tis:!0,to:!0,too:!0,twas:!0,us:!0,wants:!0,was:!0,we:!0,were:!0,what:!0,when:!0,where:!0,which:!0,while:!0,who:!0,whom:!0,why:!0,will:!0,with:!0,would:!0,yet:!0,you:!0,your:!0},g.Pipeline.registerFunction(g.stopWordFilter,"stopWordFilter"),g.Pipeline.registerFunction(g.trimmer=function(e){if(null==e)throw new Error("token should not be undefined");return e.replace(/^\W+/,"").replace(/\W+$/,"")},"trimmer"),(g.InvertedIndex=function(){this.root={docs:{},df:0}}).load=function(e){var t=new this;return t.root=e.root,t},g.InvertedIndex.prototype.addToken=function(e,t,n){n=n||this.root;let o=0;for(;o<=e.length-1;){var i=e[o];i in n||(n[i]={docs:{},df:0}),o+=1,n=n[i]}var r=t.ref;n.docs[r]?n.docs[r]={tf:t.tf}:(n.docs[r]={tf:t.tf},n.df+=1)},g.InvertedIndex.prototype.hasToken=function(t){if(!t)return!1;let n=this.root;for(let e=0;e<t.length;e++){if(!n[t[e]])return!1;n=n[t[e]]}return!0},g.InvertedIndex.prototype.getNode=function(t){if(!t)return null;let n=this.root;for(let e=0;e<t.length;e++){if(!n[t[e]])return null;n=n[t[e]]}return n},g.InvertedIndex.prototype.getDocs=function(e){return null==(e=this.getNode(e))?{}:e.docs},g.InvertedIndex.prototype.getTermFrequency=function(e,t){return null!=(e=this.getNode(e))&&t in e.docs?e.docs[t].tf:0},g.InvertedIndex.prototype.getDocFreq=function(e){return 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new Error("token should not be undefined");return e.replace(/^\W+/,"").replace(/\W+$/,"")},p.Pipeline.registerFunction(p.trimmer,"trimmer"),p.InvertedIndex=function(){this.root={docs:{},df:0}},p.InvertedIndex.load=function(e){var t=new this;return t.root=e.root,t},p.InvertedIndex.prototype.addToken=function(e,t,n){n=n||this.root;let o=0;for(;o<=e.length-1;){var i=e[o];i in n||(n[i]={docs:{},df:0}),o+=1,n=n[i]}var r=t.ref;n.docs[r]?n.docs[r]={tf:t.tf}:(n.docs[r]={tf:t.tf},n.df+=1)},p.InvertedIndex.prototype.hasToken=function(t){if(!t)return!1;let n=this.root;for(let e=0;e<t.length;e++){if(!n[t[e]])return!1;n=n[t[e]]}return!0},p.InvertedIndex.prototype.getNode=function(t){if(!t)return null;let n=this.root;for(let e=0;e<t.length;e++){if(!n[t[e]])return null;n=n[t[e]]}return n},p.InvertedIndex.prototype.getDocs=function(e){return null==(e=this.getNode(e))?{}:e.docs},p.InvertedIndex.prototype.getTermFrequency=function(e,t){return null!=(e=this.getNode(e))&&t in e.docs?e.docs[t].tf:0},p.InvertedIndex.prototype.getDocFreq=function(e){return null==(e=this.getNode(e))?0:e.df},p.InvertedIndex.prototype.removeToken=function(e,t){e&&null!=(e=this.getNode(e))&&t in e.docs&&(delete e.docs[t],--e.df)},p.InvertedIndex.prototype.expandToken=function(e,t,n){if(null==e||""==e)return[];if(t=t||[],null!=n||null!=(n=this.getNode(e))){0<n.df&&t.push(e);for(const o in n)"docs"!==o&&"df"!==o&&this.expandToken(e+o,t,n[o])}return t},p.InvertedIndex.prototype.toJSON=function(){return{root:this.root}},p.Configuration=function(e,t){var n;if(e=e||"",null==t)throw new Error("fields should not be null");this.config={};try{n=JSON.parse(e),this.buildUserConfig(n,t)}catch(e){p.utils.warn("user configuration parse failed, will use default configuration"),this.buildDefaultConfig(t)}},p.Configuration.prototype.buildDefaultConfig=function(e){this.reset(),e.forEach(function(e){this.config[e]={boost:1,bool:"OR",expand:!1}},this)},p.Configuration.prototype.buildUserConfig=function(t,e){let n="OR",o=!1;if(this.reset(),"bool"in t&&(n=t.bool||n),"expand"in t&&(o=t.expand||o),"fields"in t)for(const r in t.fields)if(-1<e.indexOf(r)){var i=t.fields[r];let e=o;null!=i.expand&&(e=i.expand),this.config[r]={boost:i.boost||0===i.boost?i.boost:1,bool:i.bool||n,expand:e}}else p.utils.warn("field name in user configuration not found in index instance fields");else this.addAllFields2UserConfig(n,o,e)},p.Configuration.prototype.addAllFields2UserConfig=function(t,n,e){e.forEach(function(e){this.config[e]={boost:1,bool:t,expand:n}},this)},p.Configuration.prototype.get=function(){return this.config},p.Configuration.prototype.reset=function(){this.config={}},lunr.SortedSet=function(){this.length=0,this.elements=[]},lunr.SortedSet.load=function(e){var t=new this;return t.elements=e,t.length=e.length,t},lunr.SortedSet.prototype.add=function(){let e,t;for(e=0;e<arguments.length;e++)t=arguments[e],~this.indexOf(t)||this.elements.splice(this.locationFor(t),0,t);this.length=this.elements.length},lunr.SortedSet.prototype.toArray=function(){return this.elements.slice()},lunr.SortedSet.prototype.map=function(e,t){return this.elements.map(e,t)},lunr.SortedSet.prototype.forEach=function(e,t){return this.elements.forEach(e,t)},lunr.SortedSet.prototype.indexOf=function(e){let t=0,n=this.elements.length,o=n-t,i=t+Math.floor(o/2),r=this.elements[i];for(;1<o;){if(r===e)return i;r<e&&(t=i),r>e&&(n=i),o=n-t,i=t+Math.floor(o/2),r=this.elements[i]}return r===e?i:-1},lunr.SortedSet.prototype.locationFor=function(e){let 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e=document.querySelector("meta[name='base']").getAttribute("content");e.endsWith("/")&&(e=e.slice(0,-1)),i=fetch(e+"/search_index."+t+".json").then(e=>e.json()).then(e=>elasticlunr.Index.load(e))}}function m(e){return e=parseInt(e,16).toString(2),[0,1,2,3,4][Math.ceil(e.length/8)]}function c(){a(this)}h.addEventListener("input",async function(){const s=this.value.trim();var e,t,n,o=await i;d.innerHTML="",y.style.display=0<s.length?"block":"none",e=(o=o.search(s,{bool:"OR",fields:{title:{boost:2},body:{boost:1}}})).length,(t=document.getElementById("n-results")).textContent=e.toString(),t=document.getElementById("result-text-singular"),n=document.getElementById("result-text-plural"),1===e?(t.style.display="inline",n.style.display="none"):(t.style.display="none",n.style.display="inline");let l=0;o.forEach(function(t){if(t.doc.title||t.doc.path||t.doc.id){var n=document.createElement("div"),o=(n.setAttribute("role","option"),n.id="result-"+l++,n.innerHTML="<a 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diff --git a/templates/partials/header.html b/templates/partials/header.html
index c003b4ffb..4473889c8 100644
--- a/templates/partials/header.html
+++ b/templates/partials/header.html
@@ -172,7 +172,7 @@
             <script defer src="{{ get_url(path='search_index.' ~ lang ~ '.js', cachebust=true) | safe }}" integrity="sha384-{{ get_hash(path='search_index.' ~ lang ~ '.js', sha_type=384, base64=true) | safe }}"></script>
         {%- endif -%}
 
-        <script defer src="{{ get_url(path='js/searchElasticlunr.js', cachebust=true) | safe }}" integrity="sha384-{{ get_hash(path='js/searchElasticlunr.js', sha_type=384, base64=true) | safe }}"></script>
+        <script defer src="{{ get_url(path='js/searchElasticlunr.min.js', cachebust=true) | safe }}" integrity="sha384-{{ get_hash(path='js/searchElasticlunr.min.js', sha_type=384, base64=true) | safe }}"></script>
 
         {# Support correct stemming and stop word filtering in non-English search #}
         {%- if lang != "en" -%}