| | |
| | | import { Document, SimpleDocumentSearchResultSetUnit } from "flexsearch" |
| | | import FlexSearch from "flexsearch" |
| | | import { ContentDetails } from "../../plugins/emitters/contentIndex" |
| | | import { registerEscapeHandler, removeAllChildren } from "./util" |
| | | import { FullSlug, resolveRelative } from "../../util/path" |
| | | import { FullSlug, normalizeRelativeURLs, resolveRelative } from "../../util/path" |
| | | |
| | | interface Item { |
| | | id: number |
| | |
| | | tags: string[] |
| | | } |
| | | |
| | | let index: Document<Item> | undefined = undefined |
| | | let index: FlexSearch.Document<Item> | undefined = undefined |
| | | |
| | | // Can be expanded with things like "term" in the future |
| | | type SearchType = "basic" | "tags" |
| | |
| | | if (trim) { |
| | | const includesCheck = (tok: string) => |
| | | tokenizedTerms.some((term) => tok.toLowerCase().startsWith(term.toLowerCase())) |
| | | const occurencesIndices = tokenizedText.map(includesCheck) |
| | | const occurrencesIndices = tokenizedText.map(includesCheck) |
| | | |
| | | let bestSum = 0 |
| | | let bestIndex = 0 |
| | | for (let i = 0; i < Math.max(tokenizedText.length - contextWindowWords, 0); i++) { |
| | | const window = occurencesIndices.slice(i, i + contextWindowWords) |
| | | const window = occurrencesIndices.slice(i, i + contextWindowWords) |
| | | const windowSum = window.reduce((total, cur) => total + (cur ? 1 : 0), 0) |
| | | if (windowSum >= bestSum) { |
| | | bestSum = windowSum |
| | |
| | | }` |
| | | } |
| | | |
| | | const p = new DOMParser() |
| | | const encoder = (str: string) => str.toLowerCase().split(/([^a-z]|[^\x00-\x7F])/) |
| | | let prevShortcutHandler: ((e: HTMLElementEventMap["keydown"]) => void) | undefined = undefined |
| | | document.addEventListener("nav", async (e: unknown) => { |
| | | const currentSlug = (e as CustomEventMap["nav"]).detail.url |
| | | |
| | | const fetchContentCache: Map<FullSlug, Element[]> = new Map() |
| | | |
| | | document.addEventListener("nav", async (e: CustomEventMap["nav"]) => { |
| | | const currentSlug = e.detail.url |
| | | |
| | | const data = await fetchData |
| | | 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") |
| | | const searchLayout = document.getElementById("search-layout") |
| | | const resultCards = document.getElementsByClassName("result-card") |
| | | const idDataMap = Object.keys(data) as FullSlug[] |
| | | |
| | | const appendLayout = (el: HTMLElement) => { |
| | | if (searchLayout?.querySelector(`#${el.id}`) === null) { |
| | | searchLayout?.appendChild(el) |
| | | } |
| | | } |
| | | |
| | | const enablePreview = searchLayout?.dataset?.preview === "true" |
| | | let preview: HTMLDivElement | undefined = undefined |
| | | const results = document.createElement("div") |
| | | results.id = "results-container" |
| | | results.style.flexBasis = enablePreview ? "30%" : "100%" |
| | | appendLayout(results) |
| | | |
| | | if (enablePreview) { |
| | | preview = document.createElement("div") |
| | | preview.id = "preview-container" |
| | | preview.style.flexBasis = "70%" |
| | | appendLayout(preview) |
| | | } |
| | | |
| | | function hideSearch() { |
| | | container?.classList.remove("active") |
| | | if (searchBar) { |
| | |
| | | if (results) { |
| | | removeAllChildren(results) |
| | | } |
| | | if (preview) { |
| | | removeAllChildren(preview) |
| | | } |
| | | |
| | | searchType = "basic" // reset search type after closing |
| | | } |
| | |
| | | searchBar?.focus() |
| | | } |
| | | |
| | | function shortcutHandler(e: HTMLElementEventMap["keydown"]) { |
| | | async function shortcutHandler(e: HTMLElementEventMap["keydown"]) { |
| | | if (e.key === "k" && (e.ctrlKey || e.metaKey) && !e.shiftKey) { |
| | | e.preventDefault() |
| | | const searchBarOpen = container?.classList.contains("active") |
| | |
| | | |
| | | // add "#" prefix for tag search |
| | | if (searchBar) searchBar.value = "#" |
| | | } else if (e.key === "Enter") { |
| | | } |
| | | |
| | | if (!container?.classList.contains("active")) return |
| | | else if (e.key === "Enter") { |
| | | // If result has focus, navigate to that one, otherwise pick first result |
| | | if (results?.contains(document.activeElement)) { |
| | | const active = document.activeElement as HTMLInputElement |
| | |
| | | const anchor = document.getElementsByClassName("result-card")[0] as HTMLInputElement | null |
| | | anchor?.click() |
| | | } |
| | | } else if (e.key === "ArrowDown") { |
| | | e.preventDefault() |
| | | // When first pressing ArrowDown, results wont contain the active element, so focus first element |
| | | if (!results?.contains(document.activeElement)) { |
| | | const firstResult = resultCards[0] as HTMLInputElement | null |
| | | firstResult?.focus() |
| | | } else { |
| | | // If an element in results-container already has focus, focus next one |
| | | const nextResult = document.activeElement?.nextElementSibling as HTMLInputElement | null |
| | | nextResult?.focus() |
| | | } |
| | | } else if (e.key === "ArrowUp") { |
| | | } else if (e.key === "ArrowUp" || (e.shiftKey && e.key === "Tab")) { |
| | | e.preventDefault() |
| | | if (results?.contains(document.activeElement)) { |
| | | // If an element in results-container already has focus, focus previous one |
| | | const prevResult = document.activeElement?.previousElementSibling as HTMLInputElement | null |
| | | if (enablePreview && prevResult?.id) { |
| | | await displayPreview(prevResult?.id as FullSlug) |
| | | } |
| | | prevResult?.focus() |
| | | } |
| | | } else if (e.key === "ArrowDown" || e.key === "Tab") { |
| | | e.preventDefault() |
| | | // When first pressing ArrowDown, results wont contain the active element, so focus first element |
| | | if (!results?.contains(document.activeElement)) { |
| | | const firstResult = resultCards[0] as HTMLInputElement | null |
| | | if (enablePreview && firstResult?.id) { |
| | | await displayPreview(firstResult?.id as FullSlug) |
| | | } |
| | | firstResult?.focus() |
| | | } else { |
| | | // If an element in results-container already has focus, focus next one |
| | | const nextResult = document.activeElement?.nextElementSibling as HTMLInputElement | null |
| | | if (enablePreview && nextResult?.id) { |
| | | await displayPreview(nextResult?.id as FullSlug) |
| | | } |
| | | nextResult?.focus() |
| | | } |
| | | } |
| | | } |
| | | |
| | |
| | | const termLower = term.toLowerCase() |
| | | let matching = tags.filter((str) => str.includes(termLower)) |
| | | |
| | | // Substract matching from original tags, then push difference |
| | | // Subtract matching from original tags, then push difference |
| | | if (matching.length > 0) { |
| | | let difference = tags.filter((x) => !matching.includes(x)) |
| | | |
| | |
| | | } |
| | | } |
| | | |
| | | function resolveUrl(slug: FullSlug): URL { |
| | | return new URL(resolveRelative(currentSlug, slug), location.toString()) |
| | | } |
| | | |
| | | const resultToHTML = ({ slug, title, content, tags }: Item) => { |
| | | const htmlTags = tags.length > 0 ? `<ul>${tags.join("")}</ul>` : `` |
| | | const button = document.createElement("button") |
| | | button.classList.add("result-card") |
| | | button.id = slug |
| | | button.innerHTML = `<h3>${title}</h3>${htmlTags}<p>${content}</p>` |
| | | button.addEventListener("click", () => { |
| | | const targ = resolveRelative(currentSlug, slug) |
| | | window.spaNavigate(new URL(targ, window.location.toString())) |
| | | const itemTile = document.createElement("a") |
| | | itemTile.classList.add("result-card") |
| | | itemTile.id = slug |
| | | itemTile.href = resolveUrl(slug).toString() |
| | | itemTile.innerHTML = `<h3>${title}</h3>${htmlTags}${enablePreview && window.innerWidth > 600 ? "" : `<p>${content}</p>`}` |
| | | itemTile.addEventListener("click", (event) => { |
| | | if (event.altKey || event.ctrlKey || event.metaKey || event.shiftKey) return |
| | | hideSearch() |
| | | }) |
| | | return button |
| | | return itemTile |
| | | } |
| | | |
| | | function displayResults(finalResults: Item[]) { |
| | |
| | | |
| | | removeAllChildren(results) |
| | | if (finalResults.length === 0) { |
| | | results.innerHTML = `<button class="result-card"> |
| | | results.innerHTML = `<a class="result-card"> |
| | | <h3>No results.</h3> |
| | | <p>Try another search term?</p> |
| | | </button>` |
| | | </a>` |
| | | } else { |
| | | results.append(...finalResults.map(resultToHTML)) |
| | | } |
| | | } |
| | | |
| | | async function fetchContent(slug: FullSlug): Promise<Element[]> { |
| | | if (fetchContentCache.has(slug)) { |
| | | return fetchContentCache.get(slug) as Element[] |
| | | } |
| | | |
| | | const targetUrl = resolveUrl(slug).toString() |
| | | const contents = await fetch(targetUrl) |
| | | .then((res) => res.text()) |
| | | .then((contents) => { |
| | | if (contents === undefined) { |
| | | throw new Error(`Could not fetch ${targetUrl}`) |
| | | } |
| | | const html = p.parseFromString(contents ?? "", "text/html") |
| | | normalizeRelativeURLs(html, targetUrl) |
| | | return [...html.getElementsByClassName("popover-hint")] |
| | | }) |
| | | |
| | | fetchContentCache.set(slug, contents) |
| | | return contents |
| | | } |
| | | |
| | | async function displayPreview(slug: FullSlug) { |
| | | if (!searchLayout || !enablePreview) return |
| | | |
| | | removeAllChildren(preview as HTMLElement) |
| | | const contentDetails = await fetchContent(slug) |
| | | |
| | | const previewInner = document.createElement("div") |
| | | previewInner.classList.add("preview-inner") |
| | | preview?.appendChild(previewInner) |
| | | contentDetails?.forEach((elt) => previewInner.appendChild(elt)) |
| | | } |
| | | |
| | | async function onType(e: HTMLElementEventMap["input"]) { |
| | | let term = (e.target as HTMLInputElement).value |
| | | let searchResults: SimpleDocumentSearchResultSetUnit[] |
| | | let searchResults: FlexSearch.SimpleDocumentSearchResultSetUnit[] |
| | | |
| | | if (searchLayout) { |
| | | searchLayout.style.opacity = "1" |
| | | } |
| | | |
| | | if (term.toLowerCase().startsWith("#")) { |
| | | searchType = "tags" |
| | |
| | | |
| | | // setup index if it hasn't been already |
| | | if (!index) { |
| | | index = new Document({ |
| | | index = new FlexSearch.Document({ |
| | | charset: "latin:extra", |
| | | optimize: true, |
| | | encode: encoder, |
| | | document: { |
| | | id: "id", |
| | | index: [ |
| | | { |
| | | field: "title", |
| | | tokenize: "reverse", |
| | | tokenize: "forward", |
| | | }, |
| | | { |
| | | field: "content", |
| | | tokenize: "reverse", |
| | | tokenize: "forward", |
| | | }, |
| | | { |
| | | field: "tags", |
| | | tokenize: "reverse", |
| | | tokenize: "forward", |
| | | }, |
| | | ], |
| | | }, |
| | |
| | | * @param index index to fill |
| | | * @param data data to fill index with |
| | | */ |
| | | async function fillDocument(index: Document<Item, false>, data: any) { |
| | | async function fillDocument(index: FlexSearch.Document<Item, false>, data: any) { |
| | | let id = 0 |
| | | for (const [slug, fileData] of Object.entries<ContentDetails>(data)) { |
| | | await index.addAsync(id, { |