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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
'use strict';
add_task(function* () {
info('Creating a service');
// Create a11y service.
let a11yInit = initPromise();
let accService1 = Cc['@mozilla.org/accessibilityService;1'].getService(
Ci.nsIAccessibilityService);
yield a11yInit;
ok(accService1, 'Service initialized');
// Add another reference to a11y service. This will not trigger
// 'a11y-init-or-shutdown' event
let accService2 = Cc['@mozilla.org/accessibilityService;1'].getService(
Ci.nsIAccessibilityService);
ok(accService2, 'Service initialized');
info('Removing all service references');
let canShutdown = false;
// This promise will resolve only if canShutdonw flag is set to true. If
// 'a11y-init-or-shutdown' event with '0' flag comes before it can be shut
// down, the promise will reject.
let a11yShutdown = new Promise((resolve, reject) =>
shutdownPromise().then(flag => canShutdown ?
resolve() : reject('Accessible service was shut down incorrectly')));
// Remove first a11y service reference.
accService1 = null;
ok(!accService1, 'Service is removed');
// Force garbage collection that should not trigger shutdown because there is
// another reference.
forceGC();
// Have some breathing room when removing a11y service references.
yield new Promise(resolve => executeSoon(resolve));
// Now allow a11y service to shutdown.
canShutdown = true;
// Remove last a11y service reference.
accService2 = null;
ok(!accService2, 'Service is removed');
// Force garbage collection that should trigger shutdown.
forceGC();
yield a11yShutdown;
});
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