This resource isn't related to any BrowsingContext, so it must pass an explicit -1 browsingContextID. Otherwise the client's _getTargetForWatcherResource logs a spurious console error when it can't map the resource to a target front. Differential Revision: https://phabricator.services.mozilla.com/D307823
44 lines
1.5 KiB
JavaScript
44 lines
1.5 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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class LastPrivateContextExitWatcher {
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#onAvailable;
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/**
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* Start watching for all times where we close a private browsing top level window.
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* Meaning we should clear the console for all logs generated from these private browsing contexts.
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*
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* @param WatcherActor watcherActor
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* The watcher actor in the parent process from which we should
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* observe these events.
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* @param Object options
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* Dictionary object with following attributes:
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* - onAvailable: mandatory function
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* This will be called for each resource.
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*/
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async watch(watcherActor, { onAvailable }) {
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this.#onAvailable = onAvailable;
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Services.obs.addObserver(this, "last-pb-context-exited");
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}
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observe(subject, topic) {
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if (topic === "last-pb-context-exited") {
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this.#onAvailable([
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// This resource doesn't transfer any data to the client, it is like a one shot event.
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// It isn't related to any BrowsingContext, so pass an explicit -1
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// browsingContextID to map it to the top level target front.
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{ browsingContextID: -1 },
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]);
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}
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}
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destroy() {
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Services.obs.removeObserver(this, "last-pb-context-exited");
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}
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}
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module.exports = LastPrivateContextExitWatcher;
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