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util.js
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util.js
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import api from "./api.js"
const { Hints, RUNTIME } = api
const util = {}
const promisify = (fn) => (...args) => new Promise((resolve, reject) => {
try {
fn(...args, resolve)
} catch (e) {
reject(e)
}
})
util.promisify = promisify
const runtime = promisify(RUNTIME)
util.runtime = runtime
util.runtimeHttpRequest = async (url, opts) => {
const res = await runtime("request", { ...opts, url })
return res.text
}
util.getURLPath = ({ count = 0, domain = false } = {}) => {
let path = window.location.pathname.slice(1)
if (count) {
path = path.split("/").slice(0, count).join("/")
}
if (domain) {
path = `${window.location.hostname}/${path}`
}
return path
}
util.getMap = (mode, keys) =>
keys.split("").reduce((acc, c) => acc[c] || acc, mode.mappings).meta || null
util.escapeHTML = (text) => {
const el = document.createElement("a")
el.textContent = text
return el.innerHTML
}
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions#Escaping
util.escapeRegExp = (str) =>
str.replace(/[.*+\-?^${}()|[\]\\]/g, "\\$&")
util.until = (check, test = (a) => a, maxAttempts = 50, interval = 50) =>
new Promise((resolve, reject) => {
const f = (attempts = 0) => {
const res = check()
if (!test(res)) {
if (attempts > maxAttempts) {
reject(new Error("until: timeout"))
} else {
setTimeout(() => f(attempts + 1), interval)
}
return
}
resolve(res)
}
f()
})
const localStorageFns = () => {
if (typeof browser !== "undefined") {
return [browser.storage.local.get, browser.storage.local.set]
}
if (typeof chrome !== "undefined") {
return [chrome.storage.local.get, chrome.storage.local.set].map(
(fn) => util.promisify(fn.bind(chrome.storage.local)),
)
}
const fn = () => new Error("local storage unavailable: unsupported environment")
return [fn, fn]
}
const [localStorageGet, localStorageSet] = localStorageFns()
util.localStorage = {}
util.localStorage.fullkey = (key) => `surfingkeys-conf.${key}`
util.localStorage.get = async (key) => {
const fullkey = util.localStorage.fullkey(key)
return (await localStorageGet(fullkey))[fullkey]
}
util.localStorage.set = async (key, val) => {
const fullkey = util.localStorage.fullkey(key)
const storageObj = { [fullkey]: val }
return localStorageSet(storageObj)
}
util.createSuggestionItem = (html, props = {}) => {
const li = document.createElement("li")
li.innerHTML = html
return { html: li.outerHTML, props }
}
util.createURLItem = (title, url, { desc = null, query = null } = {}) => {
const e = {
title: util.escapeHTML(title),
url: new URL(url).toString(),
desc: null,
}
if (desc && desc.length > 0) {
e.desc = (Array.isArray(desc) ? desc : [desc]).map((d) => `<div>${util.escapeHTML(d)}</div>`).join("")
}
return util.createSuggestionItem(`
<div style="font-weight: bold">${e.title}</div>
${e.desc ?? ""}
<div style="opacity: 0.7; line-height: 1.3em">${e.url}</div>
`, { url: e.url, query: query ?? e.title })
}
util.defaultSelector = "a[href]:not([href^=javascript])"
util.querySelectorFiltered = (selector = util.defaultSelector, filter = () => true) =>
[...document.querySelectorAll(selector)].filter(filter)
util.createHints = (
selector = util.defaultSelector,
action = Hints.dispatchMouseClick,
attrs = {},
) =>
new Promise((resolve) => {
Hints.create(selector, (...args) => {
resolve(...args)
if (typeof action === "function") action(...args)
}, attrs)
})
util.createHintsFiltered = (filter, selector, ...args) => {
util.createHints(util.querySelectorFiltered(selector, filter), ...args)
}
// https://developer.mozilla.org/en-US/docs/web/api/element/getboundingclientrect
util.isRectVisibleInViewport = (rect) =>
rect.height > 0
&& rect.width > 0
&& rect.bottom >= 0
&& rect.right >= 0
&& rect.top <= (window.innerHeight || document.documentElement.clientHeight)
&& rect.left <= (window.innerWidth || document.documentElement.clientWidth)
util.isElementInViewport = (e) =>
e.offsetHeight > 0 && e.offsetWidth > 0
&& !e.getAttribute("disabled")
&& util.isRectVisibleInViewport(e.getBoundingClientRect())
util.getDuckduckgoFaviconUrl = (url) => {
const u = url instanceof URL ? url : new URL(url)
return (new URL(`https://icons.duckduckgo.com/ip3/${u.hostname}.ico`).href)
}
// Originally based on JavaScript Pretty Date
// https://johnresig.com/blog/javascript-pretty-date/
// Copyright (c) 2011 John Resig (ejohn.org)
// Licensed under the MIT and GPL licenses.
util.prettyDate = (date) => {
const diff = (((new Date()).getTime() - date.getTime()) / 1000)
const dayDiff = Math.floor(diff / 86400)
if (Number.isNaN(dayDiff) || dayDiff < 0) return ""
const [count, unit] =
dayDiff === 0 && (
diff < 60 && [null, "just now"]
|| diff < 3600 && [Math.floor(diff / 60), "minute"]
|| diff < 86400 && [Math.floor(diff / 3600), "hour"]
) || dayDiff === 1 && [null, "yesterday"]
|| dayDiff < 7 && [dayDiff, "day"]
|| dayDiff < 30 && [Math.round(dayDiff / 7), "week"]
|| dayDiff < 365 && [Math.round(dayDiff / 30), "month"]
|| [Math.round(dayDiff / 365), "year"]
return `${count ?? ""}${count ? " " : ""}${unit}${(count ?? 0) > 1 ? "s" : ""}${count ?" ago" : ""}`
}
export default util