Static documentation site in Mkdocs https://doc.gregandev.fr
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documentation/doc/site/search/worker.js

134 lines
3.6 KiB

var base_path = 'function' === typeof importScripts ? '.' : '/search/';
var allowSearch = false;
var index;
var documents = {};
var lang = ['en'];
var data;
function getScript(script, callback) {
console.log('Loading script: ' + script);
$.getScript(base_path + script).done(function () {
callback();
}).fail(function (jqxhr, settings, exception) {
console.log('Error: ' + exception);
});
}
function getScriptsInOrder(scripts, callback) {
if (scripts.length === 0) {
callback();
return;
}
getScript(scripts[0], function() {
getScriptsInOrder(scripts.slice(1), callback);
});
}
function loadScripts(urls, callback) {
if( 'function' === typeof importScripts ) {
importScripts.apply(null, urls);
callback();
} else {
getScriptsInOrder(urls, callback);
}
}
function onJSONLoaded () {
data = JSON.parse(this.responseText);
var scriptsToLoad = ['lunr.js'];
if (data.config && data.config.lang && data.config.lang.length) {
lang = data.config.lang;
}
if (lang.length > 1 || lang[0] !== "en") {
scriptsToLoad.push('lunr.stemmer.support.js');
if (lang.length > 1) {
scriptsToLoad.push('lunr.multi.js');
}
if (lang.includes("ja") || lang.includes("jp")) {
scriptsToLoad.push('tinyseg.js');
}
for (var i=0; i < lang.length; i++) {
if (lang[i] != 'en') {
scriptsToLoad.push(['lunr', lang[i], 'js'].join('.'));
}
}
}
loadScripts(scriptsToLoad, onScriptsLoaded);
}
function onScriptsLoaded () {
console.log('All search scripts loaded, building Lunr index...');
if (data.config && data.config.separator && data.config.separator.length) {
lunr.tokenizer.separator = new RegExp(data.config.separator);
}
if (data.index) {
index = lunr.Index.load(data.index);
data.docs.forEach(function (doc) {
documents[doc.location] = doc;
});
console.log('Lunr pre-built index loaded, search ready');
} else {
index = lunr(function () {
if (lang.length === 1 && lang[0] !== "en" && lunr[lang[0]]) {
this.use(lunr[lang[0]]);
} else if (lang.length > 1) {
this.use(lunr.multiLanguage.apply(null, lang)); // spread operator not supported in all browsers: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_operator#Browser_compatibility
}
this.field('title');
this.field('text');
this.ref('location');
for (var i=0; i < data.docs.length; i++) {
var doc = data.docs[i];
this.add(doc);
documents[doc.location] = doc;
}
});
console.log('Lunr index built, search ready');
}
allowSearch = true;
postMessage({config: data.config});
postMessage({allowSearch: allowSearch});
}
function init () {
var oReq = new XMLHttpRequest();
oReq.addEventListener("load", onJSONLoaded);
var index_path = base_path + '/search_index.json';
if( 'function' === typeof importScripts ){
index_path = 'search_index.json';
}
oReq.open("GET", index_path);
oReq.send();
}
function search (query) {
if (!allowSearch) {
console.error('Assets for search still loading');
return;
}
var resultDocuments = [];
var results = index.search(query);
for (var i=0; i < results.length; i++){
var result = results[i];
doc = documents[result.ref];
doc.summary = doc.text.substring(0, 200);
resultDocuments.push(doc);
}
return resultDocuments;
}
if( 'function' === typeof importScripts ) {
onmessage = function (e) {
if (e.data.init) {
init();
} else if (e.data.query) {
postMessage({ results: search(e.data.query) });
} else {
console.error("Worker - Unrecognized message: " + e);
}
};
}