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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_SESSIONS_SESSION_RESTORE_H_
#define CHROME_BROWSER_SESSIONS_SESSION_RESTORE_H_
#pragma once
#include <vector>
#include "chrome/browser/history/history.h"
#include "chrome/browser/sessions/session_types.h"
#include "base/basictypes.h"
class Browser;
class Profile;
// SessionRestore handles restoring either the last or saved session. Session
// restore come in two variants, asynchronous or synchronous. The synchronous
// variety is meant for startup, and blocks until restore is complete.
class SessionRestore {
public:
// Asnchronously restores the specified session.
// If |browser| is non-null the tabs for the first window are added to it.
// If clobber_existing_window is true and there is an open browser window,
// it is closed after restoring.
// If always_create_tabbed_browser is true at least one tabbed browser is
// created. For example, if there is an error restoring, or the last session
// session is empty and always_create_tabbed_browser is true, a new empty
// tabbed browser is created.
//
// If urls_to_open is non-empty, a tab is added for each of the URLs.
static void RestoreSession(Profile* profile,
Browser* browser,
bool clobber_existing_window,
bool always_create_tabbed_browser,
const std::vector<GURL>& urls_to_open);
// Specifically used in the restoration of a foreign session. This method
// restores the given session windows to a browser.
static void RestoreForeignSessionWindows(
Profile* profile,
std::vector<SessionWindow*>::const_iterator begin,
std::vector<SessionWindow*>::const_iterator end);
// Specifically used in the restoration of a foreign session. This method
// restores the given session tab to a browser.
static void RestoreForeignSessionTab(Profile* profile,
const SessionTab& tab);
// Synchronously restores the last session. At least one tabbed browser is
// created, even if there is an error in restoring.
//
// If urls_to_open is non-empty, a tab is added for each of the URLs.
//
// Returns the last active Browser (which may have been created by the act of
// restoring).
static Browser* RestoreSessionSynchronously(
Profile* profile,
const std::vector<GURL>& urls_to_open);
// Returns true if we're in the process of restoring.
static bool IsRestoring();
// The max number of non-selected tabs SessionRestore loads when restoring
// a session. A value of 0 indicates all tabs are loaded at once.
static size_t num_tabs_to_load_;
private:
SessionRestore();
DISALLOW_COPY_AND_ASSIGN(SessionRestore);
};
#endif // CHROME_BROWSER_SESSIONS_SESSION_RESTORE_H_
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