gecko/browser/components/sessionstore/nsISessionStartup.idl

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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/. */
#include "nsISupports.idl"
/**
* nsISessionStore keeps track of the current browsing state - i.e.
* tab history, cookies, scroll state, form data, POSTDATA and window features
* - and allows to restore everything into one window.
*/
[scriptable, uuid(51f4b9f0-f3d2-11e2-bb62-2c24dd830245)]
interface nsISessionStartup: nsISupports
{
/**
* Return a promise that is resolved once initialization
* is complete.
*/
readonly attribute jsval onceInitialized;
// Get session state
readonly attribute jsval state;
/**
* Determines whether there is a pending session restore and makes sure that
* we're initialized before returning. If we're not yet this will read the
* session file synchronously.
*/
boolean doRestore();
/**
* Returns whether we will restore a session that ends up replacing the
* homepage. The browser uses this to not start loading the homepage if
* we're going to stop its load anyway shortly after.
*
* This is meant to be an optimization for the average case that loading the
* session file finishes before we may want to start loading the default
* homepage. Should this be called before the session file has been read it
* will just return false.
*/
readonly attribute bool willOverrideHomepage;
/**
* What type of session we're restoring.
* NO_SESSION There is no data available from the previous session
* RECOVER_SESSION The last session crashed. It will either be restored or
* about:sessionrestore will be shown.
* RESUME_SESSION The previous session should be restored at startup
* DEFER_SESSION The previous session is fine, but it shouldn't be restored
* without explicit action (with the exception of pinned tabs)
*/
const unsigned long NO_SESSION = 0;
const unsigned long RECOVER_SESSION = 1;
const unsigned long RESUME_SESSION = 2;
const unsigned long DEFER_SESSION = 3;
readonly attribute unsigned long sessionType;
};