windows.https.window.js

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /web-locks/windows.https.window.html - WPT Dashboard Interop Dashboard

// META: title=Web Locks API: Windows

// META: script=resources/helpers.js

"use strict";

promise_test(async (t) => {

  const { window, lockName } = await openWindowAndAcquireLockInWorker(t);

  // This request should be blocked.

  let lock_granted = false;

  const blocked = navigator.locks.request(lockName, lock => { lock_granted = true; });

  // Verify that we can't get it.

  let available = undefined;

  await navigator.locks.request(

    lockName, {ifAvailable: true}, lock => { available = lock !== null; });

  assert_false(available);

  assert_false(lock_granted);

  // Close the window, after which we should be able to acquire the lock here.

  window.close();

  await blocked;

  assert_true(lock_granted);

}, 'Closed window with worker holding lock');

promise_test(async (t) => {

  const { window, lockName } = await openWindowAndAcquireLockInWorker(t);

  // This request should be blocked.

  let lock_granted = false;

  const blocked = navigator.locks.request(lockName, lock => { lock_granted = true; });

  // Verify that we can't get it.

  let available = undefined;

  await navigator.locks.request(

    lockName, {ifAvailable: true}, lock => { available = lock !== null; });

  assert_false(available);

  assert_false(lock_granted);

  // Reload the window, after which we should be able to acquire the lock here.

  window.location.href = 'resources/window.html?refresh=1';

  await blocked;

  assert_true(lock_granted);

}, 'Refreshed window with worker holding lock');

async function openWindowAndAcquireLockInWorker(t) {

  const lockName = uniqueName(t);

  const window = await new Promise((resolve) => {

    const w = globalThis.window.open("resources/window.html");

    w.addEventListener('load', () => { resolve(w); }, { once: true });

    t.add_cleanup(() => w.close());

    return w;

});

  const {port1, port2} = new MessageChannel();

  const acquiredLock = new Promise((resolve) => {

    port1.onmessage = (_) => resolve();

});

  // Make popup acquire a lock in a worker.

  window.postMessage(

    { port: port2, worker: {op: 'request', name: lockName, mode: 'exclusive'}},

    '*',

    [port2]

);

  await acquiredLock;

  return { window, lockName };