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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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/. */
#include "nsISupports.idl"
/**
* nsITabUnloader: interface to represent TabUnloader
*
* nsIAvailableMemoryWatcherBase: interface to watch the system's memory
* status and invoke a registered TabUnloader when it detected a low-memory
* and high-memory situation. The logic to detect such a memory situation
* is defined per platform.
*/
[scriptable, uuid(2e530956-6054-464f-9f4c-0ae6f8de5523)]
interface nsITabUnloader : nsISupports
{
/*
* Unload the least-recently-used tab.
* JS implementation of this interface TabUnloader.unloadTabAsync takes
* one parameter that defines a threshold to exclude fresh tabs from the
* unloading candidate tabs. Currently the memory watcher is the only one
* caller of this interface and it always expects the default threshold,
* so this interface takes no parameter.
*/
void unloadTabAsync();
};
[scriptable, uuid(b0b5701e-239d-49db-9009-37e89f86441c)]
interface nsIAvailableMemoryWatcherBase : nsISupports
{
void registerTabUnloader(in nsITabUnloader aTabUnloader);
void onUnloadAttemptCompleted(in nsresult aResult);
};
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