100 lines
2.8 KiB
JavaScript
100 lines
2.8 KiB
JavaScript
var lunrIndex;
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// Initialize lunrjs using our generated index file
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function initLunr() {
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var request = new XMLHttpRequest();
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request.open('GET', 'https://darktable-org.github.io/luadocs/index.json', true);
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request.onload = function () {
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if (request.status >= 200 && request.status < 400) {
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pagesIndex = JSON.parse(request.responseText);
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console.log("index:", pagesIndex);
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// Set up lunrjs by declaring the fields we use
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// Also provide their boost level for the ranking
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lunrIndex = lunr(function () {
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this.field("title", {
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boost: 20
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});
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this.field("tags", {
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boost: 5
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});
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this.field("content", {
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boost: 1
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});
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// ref is the result item identifier (I chose the page URL)
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this.ref("href");
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this.add({ field: "test", text: 'hello' });
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for (var i = 0; i < pagesIndex.length; ++i) {
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this.add(pagesIndex[i]);
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}
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});
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} else {
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var err = textStatus + ", " + error;
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console.error("Error getting Hugo index flie:", err);
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}
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};
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request.send();
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}
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function search(query) {
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return lunrIndex.search(query).map(function (result) {
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return pagesIndex.filter(function (page) {
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return page.href === result.ref;
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})[0];
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});
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}
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function renderResults(results) {
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if (!results.length) {
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$("#search-results").hide();
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return;
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}
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// Only show the first twenty results
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$results = document.getElementById("search-results");
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results.slice(0, 20).forEach(function (result) {
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var p = document.createElement('p');
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var ahref = document.createElement('a');
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ahref.href = result.href;
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ahref.text = "» " + result.title;
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p.append(ahref);
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$results.appendChild(p);
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});
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$("#search-results").show();
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}
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$(document).ready(function() {
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$("#search-results").hide();
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$("#search-input").focus(function() {
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//load index file if it's not already been loaded
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if (! lunrIndex) { initLunr(); }
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});
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$("#search-input").keydown(function (e) {
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if(e.keyCode == 27)
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{
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$("#search-results").hide();
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$("#search-input").val("");
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}
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});
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$("#search-input").keyup(function (e) {
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//trigger a search if a search term longer than two characters has been entered
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$("#search-results").empty().hide();
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query = $("#search-input").val();
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if (query.length < 2) {
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return;
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}
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results = search(query + '~1');
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renderResults(results);
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});
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});
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