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authentik/web/src/elements/router/RouterOutlet.ts
Jens Langhammer a92a0fb60a web: migrate to lit 2
Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>
2021-09-21 11:19:26 +02:00

110 lines
3.6 KiB
TypeScript

import { css, CSSResult, html, LitElement, TemplateResult } from "lit";
import { customElement, property } from "lit/decorators";
import { Route } from "./Route";
import { RouteMatch } from "./RouteMatch";
import AKGlobal from "../../authentik.css";
import "./Router404";
import { ROUTE_SEPARATOR } from "../../constants";
// Poliyfill for hashchange.newURL,
// https://developer.mozilla.org/en-US/docs/Web/API/WindowEventHandlers/onhashchange
window.addEventListener("load", () => {
if (!window.HashChangeEvent)
(function () {
let lastURL = document.URL;
window.addEventListener("hashchange", function (event) {
Object.defineProperty(event, "oldURL", {
enumerable: true,
configurable: true,
value: lastURL,
});
Object.defineProperty(event, "newURL", {
enumerable: true,
configurable: true,
value: document.URL,
});
lastURL = document.URL;
});
})();
});
@customElement("ak-router-outlet")
export class RouterOutlet extends LitElement {
@property({ attribute: false })
current?: RouteMatch;
@property()
defaultUrl?: string;
@property({ attribute: false })
routes: Route[] = [];
static get styles(): CSSResult[] {
return [
AKGlobal,
css`
:host {
height: 100vh;
background-color: transparent !important;
}
*:first-child {
flex-direction: column;
}
`,
];
}
constructor() {
super();
window.addEventListener("hashchange", (ev: HashChangeEvent) => this.navigate(ev));
}
firstUpdated(): void {
this.navigate();
}
navigate(ev?: HashChangeEvent): void {
let activeUrl = window.location.hash.slice(1, Infinity).split(ROUTE_SEPARATOR)[0];
if (ev) {
// Check if we've actually changed paths
const oldPath = new URL(ev.oldURL).hash.slice(1, Infinity).split(ROUTE_SEPARATOR)[0];
if (oldPath === activeUrl) return;
}
if (activeUrl === "") {
activeUrl = this.defaultUrl || "/";
window.location.hash = `#${activeUrl}`;
console.debug(`authentik/router: defaulted URL to ${window.location.hash}`);
return;
}
let matchedRoute: RouteMatch | null = null;
this.routes.some((route) => {
const match = route.url.exec(activeUrl);
if (match != null) {
matchedRoute = new RouteMatch(route);
matchedRoute.arguments = match.groups || {};
matchedRoute.fullUrl = activeUrl;
console.debug("authentik/router: found match ", matchedRoute);
return true;
}
});
if (!matchedRoute) {
console.debug(`authentik/router: route "${activeUrl}" not defined`);
const route = new Route(
RegExp(""),
html`<div class="pf-c-page__main">
<ak-router-404 url=${activeUrl}></ak-router-404>
</div>`,
);
matchedRoute = new RouteMatch(route);
matchedRoute.arguments = route.url.exec(activeUrl)?.groups || {};
matchedRoute.fullUrl = activeUrl;
}
this.current = matchedRoute;
}
render(): TemplateResult | undefined {
return this.current?.render();
}
}