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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';
module.metadata = {
"stability": "stable"
};
const { setMode, getMode, on: onStateChange } = require('./private-browsing/utils');
const { emit, on, once, off } = require('./event/core');
const { when: unload } = require('./system/unload');
const observers = require('./deprecated/observer-service');
onStateChange('start', function onStart() {
emit(exports, 'start');
});
onStateChange('stop', function onStop() {
emit(exports, 'stop');
});
// Make sure listeners are cleaned up.
unload(function() off(exports));
Object.defineProperty(exports, "isActive", { get: function() getMode() });
exports.activate = function activate() setMode(true);
exports.deactivate = function deactivate() setMode(false);
exports.on = on.bind(null, exports);
exports.once = once.bind(null, exports);
exports.removeListener = function removeListener(type, listener) {
// Note: We can't just bind `off` as we do it for other methods cause skipping
// a listener argument will remove all listeners for the given event type
// causing misbehavior. This way we make sure all arguments are passed.
off(exports, type, listener);
};
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