mirror of
https://github.com/squidfunk/mkdocs-material.git
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115 lines
3.6 KiB
TypeScript
115 lines
3.6 KiB
TypeScript
/*
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* Copyright (c) 2016-2020 Martin Donath <martin.donath@squidfunk.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A RTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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import "expose-loader?lunr!lunr"
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import { SearchIndex, SearchIndexConfig } from "integrations/search"
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import { SearchMessage, SearchMessageType } from "../message"
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/* ----------------------------------------------------------------------------
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* Data
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* ------------------------------------------------------------------------- */
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/**
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* Search index
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*/
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let index: SearchIndex
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/* ----------------------------------------------------------------------------
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* Helper functions
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* ------------------------------------------------------------------------- */
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/**
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* Setup multi-language support through `lunr-languages`
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*
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* This function will automatically import the stemmers necessary to process
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* the languages which were given through the search index configuration.
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*
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* @param config - Search index configuration
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*/
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function setupLunrLanguages(config: SearchIndexConfig): void {
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const base = "../lunr"
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/* Add scripts for languages */
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const scripts = []
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for (const lang of config.lang) {
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if (lang === "ja") scripts.push(`${base}/tinyseg.min.js`)
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if (lang !== "en") scripts.push(`${base}/min/lunr.${lang}.min.js`)
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}
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/* Add multi-language support */
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if (config.lang.length > 1)
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scripts.push(`${base}/min/lunr.multi.min.js`)
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/* Load scripts synchronously */
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if (scripts.length)
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importScripts(
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`${base}/min/lunr.stemmer.support.min.js`,
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...scripts
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)
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}
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/* ----------------------------------------------------------------------------
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* Functions
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* ------------------------------------------------------------------------- */
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/**
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* Message handler
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*
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* @param message - Source message
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*
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* @return Target message
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*/
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export function handler(message: SearchMessage): SearchMessage {
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switch (message.type) {
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/* Setup search index */
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case SearchMessageType.SETUP:
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setupLunrLanguages(message.data.config)
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index = new SearchIndex(message.data)
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return {
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type: SearchMessageType.DUMP,
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data: index.toString()
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}
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/* Query search index */
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case SearchMessageType.QUERY:
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return {
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type: SearchMessageType.RESULT,
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data: index ? index.search(message.data) : []
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}
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/* All other messages */
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default:
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throw new TypeError("Invalid message type")
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}
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}
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/* ----------------------------------------------------------------------------
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* Worker
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* ------------------------------------------------------------------------- */
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addEventListener("message", ev => {
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postMessage(handler(ev.data))
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})
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