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/*
This file is part of keks-meet (https://codeberg.org/metamuffin/keks-meet)
which is licensed under the GNU Affero General Public License (version 3); see /COPYING.
Copyright (C) 2023 metamuffin <metamuffin@disroot.org>
*/
/// <reference lib="dom" />
import { PREFS } from "./preferences/mod.ts";
interface Opts<E> {
class?: string[] | string,
id?: string,
src?: string,
for?: string,
type?: string,
href?: string,
onclick?: (e: E) => void,
onchange?: (e: E) => void,
role?: "dialog"
aria_label?: string
aria_live?: "polite" | "assertive"
aria_modal?: boolean
aria_popup?: "menu"
}
function apply_opts<E extends HTMLElement>(e: E, o: Opts<E>) {
if (o.id) e.id = o.id
if (o.onclick) e.onclick = () => o.onclick!(e)
if (o.onchange) e.onchange = () => o.onchange!(e)
if (o.for) (e as unknown as HTMLLabelElement).htmlFor = o.for
if (o.type && e instanceof HTMLInputElement) e.type = o.type
if (o.href && e instanceof HTMLAnchorElement) e.href = o.href;
if (typeof o?.class == "string") e.classList.add(o.class)
if (typeof o?.class == "object") e.classList.add(...o.class)
if (o.aria_modal) e.ariaModal = "true"
if (o.aria_popup) e.ariaHasPopup = o.aria_popup
if (o.aria_label) e.ariaLabel = o.aria_label
if (o.aria_live) e.ariaLive = o.aria_live
}
export function e<K extends keyof HTMLElementTagNameMap>(name: K, opts: Opts<HTMLElementTagNameMap[K]>, ...children: (HTMLElement | string)[]): HTMLElementTagNameMap[K] {
const el = document.createElement(name)
apply_opts(el, opts)
for (const c of children) {
if (typeof c == "string") el.textContent += c;
else el.append(c)
}
return el
}
export function image_view(url: string, opts?: Opts<HTMLElement>): HTMLElement {
const img = document.createElement("img")
apply_opts(img, opts ?? {})
img.src = url
img.alt = `Image (click to open)`
img.addEventListener("click", () => {
window.open(url, "_blank", `noreferrer=true,noopener=true,popup=${PREFS.image_view_popup}`)
})
return img
}
export function notify(body: string, author?: string) {
if (document.hasFocus()) return
if (Notification.permission != "granted") return
if (author)
new Notification(`keks-meet: ${author}`, { body })
else
new Notification(`keks-meet`, { body })
}
export function sleep(delay: number) { return new Promise(r => setTimeout(r, delay)) }
export function display_filesize(n: number): string {
if (n > 1000000000000) return (n / 1000000000000).toFixed(1) + "TB"
if (n > 1000000000) return (n / 1000000000).toFixed(1) + "GB"
if (n > 1000000) return (n / 1000000).toFixed(1) + "MB"
if (n > 1000) return (n / 1000).toFixed(1) + "kB"
return n.toString() + "B"
}
export class EventEmitter<E> {
private handlers: Set<(e: E) => unknown> = new Set()
public dispatch(e: E) { this.handlers.forEach(h => h(e)) }
public add_listener(listener: (e: E) => unknown) { this.handlers.add(listener) }
public remove_listener(listener: (e: E) => unknown) { this.handlers.delete(listener) }
}
export function array_swap<T>(arr: T[], a: number, b: number) {
const temp = arr[a]
arr[a] = arr[b]
arr[b] = temp
}
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