| | |
| | | import { Document } from "flexsearch" |
| | | import { ContentDetails } from "../../plugins/emitters/contentIndex" |
| | | import { registerEscapeHandler } from "./handler" |
| | | import { registerEscapeHandler, relative, removeAllChildren } from "./util" |
| | | |
| | | interface Item { |
| | | slug: string, |
| | |
| | | } |
| | | let index: Document<Item> | undefined = undefined |
| | | |
| | | function relative(from: string, to: string) { |
| | | const pieces = [location.protocol, '//', location.host, location.pathname] |
| | | const url = pieces.join('').slice(0, -from.length) + to |
| | | return url |
| | | } |
| | | |
| | | function removeAllChildren(node: HTMLElement) { |
| | | node.innerHTML = `` |
| | | } |
| | | |
| | | const contextWindowWords = 30 |
| | | const numSearchResults = 5 |
| | | function highlight(searchTerm: string, text: string, trim?: boolean) { |
| | | const tokenizedTerms = searchTerm.split(/\s+/).filter(t => t !== "") |
| | | // try to highlight longest tokens first |
| | | const tokenizedTerms = searchTerm.split(/\s+/).filter(t => t !== "").sort((a, b) => b.length - a.length) |
| | | let tokenizedText = text |
| | | .split(/\s+/) |
| | | .filter(t => t !== "") |
| | |
| | | // see if this tok is prefixed by any search terms |
| | | for (const searchTok of tokenizedTerms) { |
| | | if (tok.toLowerCase().includes(searchTok.toLowerCase())) { |
| | | const regex = new RegExp(searchTok, "gi") |
| | | const regex = new RegExp(searchTok.toLowerCase(), "gi") |
| | | return tok.replace(regex, `<span class="highlight">$&</span>`) |
| | | } |
| | | } |
| | |
| | | document.addEventListener("nav", async (e: unknown) => { |
| | | const currentSlug = (e as CustomEventMap["nav"]).detail.url |
| | | |
| | | // setup index if it hasn't been already |
| | | const data = await fetchData |
| | | if (!index) { |
| | | index = new Document({ |
| | | cache: true, |
| | | charset: 'latin:extra', |
| | | optimize: true, |
| | | encode: encoder, |
| | | document: { |
| | | id: "slug", |
| | | index: [ |
| | | { |
| | | field: "title", |
| | | tokenize: "forward", |
| | | }, |
| | | { |
| | | field: "content", |
| | | tokenize: "reverse", |
| | | }, |
| | | ] |
| | | }, |
| | | }) |
| | | |
| | | for (const [slug, fileData] of Object.entries<ContentDetails>(data)) { |
| | | index.add({ |
| | | slug, |
| | | title: fileData.title, |
| | | content: fileData.content |
| | | }) |
| | | } |
| | | } |
| | | |
| | | const container = document.getElementById("search-container") |
| | | const sidebar = container?.closest(".sidebar") as HTMLElement |
| | | const searchIcon = document.getElementById("search-icon") |
| | | const searchBar = document.getElementById("search-bar") as HTMLInputElement | null |
| | | const results = document.getElementById("results-container") |
| | |
| | | if (searchBar) { |
| | | searchBar.value = "" // clear the input when we dismiss the search |
| | | } |
| | | if (sidebar) { |
| | | sidebar.style.zIndex = "unset" |
| | | } |
| | | if (results) { |
| | | removeAllChildren(results) |
| | | } |
| | | } |
| | | |
| | | function showSearch() { |
| | | if (sidebar) { |
| | | sidebar.style.zIndex = "1" |
| | | } |
| | | container?.classList.add("active") |
| | | searchBar?.focus() |
| | | } |
| | |
| | | |
| | | function onType(e: HTMLElementEventMap["input"]) { |
| | | const term = (e.target as HTMLInputElement).value |
| | | const searchResults = index?.search(term, 5) ?? [] |
| | | const searchResults = index?.search(term, numSearchResults) ?? [] |
| | | const getByField = (field: string): string[] => { |
| | | const results = searchResults.filter((x) => x.field === field) |
| | | return results.length === 0 ? [] : [...results[0].result] as string[] |
| | |
| | | displayResults(finalResults) |
| | | } |
| | | |
| | | |
| | | document.removeEventListener("keydown", shortcutHandler) |
| | | document.addEventListener("keydown", shortcutHandler) |
| | | searchIcon?.removeEventListener("click", showSearch) |
| | |
| | | searchBar?.removeEventListener("input", onType) |
| | | searchBar?.addEventListener("input", onType) |
| | | |
| | | // setup index if it hasn't been already |
| | | if (!index) { |
| | | index = new Document({ |
| | | cache: true, |
| | | charset: 'latin:extra', |
| | | optimize: true, |
| | | encode: encoder, |
| | | document: { |
| | | id: "slug", |
| | | index: [ |
| | | { |
| | | field: "title", |
| | | tokenize: "forward", |
| | | }, |
| | | { |
| | | field: "content", |
| | | tokenize: "reverse", |
| | | }, |
| | | ] |
| | | }, |
| | | }) |
| | | |
| | | for (const [slug, fileData] of Object.entries<ContentDetails>(data)) { |
| | | await index.addAsync(slug, { |
| | | slug, |
| | | title: fileData.title, |
| | | content: fileData.content |
| | | }) |
| | | } |
| | | } |
| | | |
| | | // register handlers |
| | | registerEscapeHandler(container, hideSearch) |
| | | }) |