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// Copyright (c) 2006-2008 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.


#include "base/basictypes.h"

class SyncSetupFlowContainer;

class ProfileSyncService;

class SyncSetupWizard {
  enum State {
    // Show the Google Account login UI.
    GAIA_LOGIN = 0,
    // A login attempt succeeded.  Depending on initial conditions, this may
    // cause a transition to DONE, or to wait for an explicit transition (via
    // Step) to the next state.
    // The panic switch.  Something went terribly wrong during setup and we
    // can't recover.
    // A final state for when setup completes and it is possible it is the
    // user's first time (globally speaking) as the cloud doesn't have any
    // bookmarks.  We show additional info in this case to explain setting up
    // more computers.
    // A catch-all done case for any setup process.

  explicit SyncSetupWizard(ProfileSyncService* service);

  // Advances the wizard to the specified state if possible, or opens a
  // new dialog starting at |advance_state|.  If the wizard has never ran
  // through to completion, it will always attempt to do so.  Otherwise, e.g
  // for a transient auth failure, it will just run as far as is necessary
  // based on |advance_state| (so for auth failure, up to GAIA_SUCCESS).
  void Step(State advance_state);

  // Whether or not a dialog is currently showing.  Useful to determine
  // if various buttons in the UI should be enabled or disabled.
  bool IsVisible() const;

  // If we just need to pop open an individual dialog, say to collect
  // gaia credentials in the event of a steady-state auth failure, this is
  // a "discrete" run (as in not a continuous wizard flow).  This returns
  // the end state to pass to Run for a given |start_state|.
  static State GetEndStateForDiscreteRun(State start_state);

  // Helper to return whether |state| warrants starting a new flow.
  static bool IsTerminalState(State state);

  ProfileSyncService* service_;

  // The use of ShowHtmlDialog and SyncSetupFlowContainer is disabled on Linux
  // until BrowserShowHtmlDialog() is implemented.
  // See: http://code.google.com/p/chromium/issues/detail?id=25260
  SyncSetupFlowContainer* flow_container_;



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