/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* 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/. */
/** * Effectively just a refcounted life-cycle management wrapper around * LSObserverChild which exists to receive "storage" event information from * other processes. (Same-process events are handled within the process, see * `LSObject::OnChange`.) * * ## Lifecycle ## * - Created by LSObject::EnsureObserver via synchronous LSRequest idiom * whenever the first window's origin adds a "storage" event. Placed in the * gLSObservers LSObserverHashtable for subsequent LSObject's via * LSObserver::Get lookup. * - The LSObserverChild directly handles "Observe" messages, shunting them * directly to Storage::NotifyChange which does all the legwork of notifying * windows about "storage" events. * - Destroyed when refcount goes to zero due to all owning LSObjects being * destroyed or having their `LSObject::DropObserver` methods invoked due to * the last "storage" event listener being removed from the owning window.
*/ class LSObserver final { friendclass LSObject;
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