// Copyright (c) 2011 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_SYNC_GLUE_SYNCED_TAB_DELEGATE_H__
#define CHROME_BROWSER_SYNC_GLUE_SYNCED_TAB_DELEGATE_H__
#pragma once

#include <string>

#include "chrome/browser/sessions/session_id.h"

class NavigationEntry;
class Profile;

namespace browser_sync {

// A SyncedTabDelegate is used to insulate the sync code from depending
// directly on TabContents, TabContentsWrapper and NavigationController.
class SyncedTabDelegate {
 public:
  // Method from TabContentsWrapper.

  virtual SessionID::id_type GetWindowId() const = 0;
  virtual SessionID::id_type GetSessionId() const = 0;
  virtual bool IsBeingDestroyed() const = 0;
  virtual Profile* profile() const = 0;

  // Method derived from TabContentsWrapper.

  virtual bool HasExtensionAppId() const = 0;
  virtual const std::string& GetExtensionAppId() const = 0;

  // Method from NavigationController

  virtual int GetCurrentEntryIndex() const = 0;
  virtual int GetEntryCount() const = 0;
  virtual int GetPendingEntryIndex() const = 0;
  virtual NavigationEntry* GetPendingEntry() const = 0;
  virtual NavigationEntry* GetEntryAtIndex(int i) const = 0;
  virtual NavigationEntry* GetActiveEntry() const = 0;

 protected:
  virtual ~SyncedTabDelegate() {}
};

}  // namespace browser_sync

#endif  // CHROME_BROWSER_SYNC_GLUE_SYNCED_TAB_DELEGATE_H__