// Copyright 2013 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 IOS_CHROME_BROWSER_UI_SETTINGS_SETTINGS_NAVIGATION_CONTROLLER_H_
#define IOS_CHROME_BROWSER_UI_SETTINGS_SETTINGS_NAVIGATION_CONTROLLER_H_

#import <UIKit/UIKit.h>

#import "ios/chrome/browser/ui/commands/application_commands.h"

@protocol BrowserCommands;
@protocol ImportDataControllerDelegate;
@protocol UserFeedbackDataSource;

namespace ios {
class ChromeBrowserState;
}  // namespace ios

@protocol SettingsControllerProtocol<NSObject>

@optional

// Notifies the controller that the settings screen is being dismissed.
- (void)settingsWillBeDismissed;

@end

@protocol SettingsNavigationControllerDelegate<NSObject>

// Informs the delegate that the settings navigation controller should be
// closed.
- (void)closeSettings;

// Asks the delegate for a dispatcher that can be passed into child view
// controllers when they are created.
- (id<ApplicationCommands, BrowserCommands>)dispatcherForSettings;

@end

// Controller to modify user settings.
@interface SettingsNavigationController
    : UINavigationController<ApplicationSettingsCommands>

// Whether sync changes should be committed when the settings are being
// dismissed. Defaults to YES.
@property(nonatomic, assign) BOOL shouldCommitSyncChangesOnDismissal;

// Creates a new SettingsCollectionViewController and the chrome around it.
// |browserState| is used to personalize some settings aspects and should not be
// nil nor Off-the-Record. |delegate| may be nil.
+ (SettingsNavigationController*)
newSettingsMainControllerWithBrowserState:(ios::ChromeBrowserState*)browserState
                                 delegate:
                                     (id<SettingsNavigationControllerDelegate>)
                                         delegate;

// Creates a new AccountsTableViewController and the chrome around it.
// |browserState| is used to personalize some settings aspects and should not be
// nil. |delegate| may be nil.
+ (SettingsNavigationController*)
newAccountsController:(ios::ChromeBrowserState*)browserState
             delegate:(id<SettingsNavigationControllerDelegate>)delegate;

// Creates a new SignInSettingsCollectionViewController and the chrome around
// it. |browserState| is used to personalize some settings aspects and should
// not be nil. |delegate| may be nil.
+ (SettingsNavigationController*)
     newSyncController:(ios::ChromeBrowserState*)browserState
allowSwitchSyncAccount:(BOOL)allowSwitchSyncAccount
              delegate:(id<SettingsNavigationControllerDelegate>)delegate;

// Creates a new SyncEncryptionPassphraseCollectionViewController and the chrome
// around it. |browserState| is used to personalize some settings aspects and
// should not be nil. |delegate| may be nil.
+ (SettingsNavigationController*)
newSyncEncryptionPassphraseController:(ios::ChromeBrowserState*)browserState
                             delegate:(id<SettingsNavigationControllerDelegate>)
                                          delegate;

// Creates a new SavePasswordsCollectionViewController and the chrome around it.
// |browserState| is used to personalize some settings aspects and should not be
// nil. |delegate| may be nil.
+ (SettingsNavigationController*)
newSavePasswordsController:(ios::ChromeBrowserState*)browserState
                  delegate:(id<SettingsNavigationControllerDelegate>)delegate;

// Creates and displays a new UIViewController for user to report an issue.
// |browserState| is used to personalize some settings aspects and should not
// be nil. |dataSource| is used to populate the UIViewController. |delegate|
// may be nil.
+ (SettingsNavigationController*)
newUserFeedbackController:(ios::ChromeBrowserState*)browserState
                 delegate:(id<SettingsNavigationControllerDelegate>)delegate
       feedbackDataSource:(id<UserFeedbackDataSource>)dataSource;

// Creates and displays a new ImportDataTableViewController. |browserState|
// should not be nil.
+ (SettingsNavigationController*)
newImportDataController:(ios::ChromeBrowserState*)browserState
               delegate:(id<SettingsNavigationControllerDelegate>)delegate
     importDataDelegate:(id<ImportDataControllerDelegate>)importDataDelegate
              fromEmail:(NSString*)fromEmail
                toEmail:(NSString*)toEmail
             isSignedIn:(BOOL)isSignedIn;

// Creates a new AutofillProfileTableViewController and the chrome around
// it. |browserState| is used to personalize some settings aspects and should
// not be nil. |delegate| may be nil.
+ (SettingsNavigationController*)
newAutofillProfilleController:(ios::ChromeBrowserState*)browserState
                     delegate:
                         (id<SettingsNavigationControllerDelegate>)delegate;

// Creates a new AutofillCreditCardCollectionViewController and the chrome
// around it. |browserState| is used to personalize some settings aspects and
// should not be nil. |delegate| may be nil.
+ (SettingsNavigationController*)
newAutofillCreditCardController:(ios::ChromeBrowserState*)browserState
                       delegate:
                           (id<SettingsNavigationControllerDelegate>)delegate;

// Initializes the UINavigationController with |rootViewController|.
- (instancetype)
initWithRootViewController:(UIViewController*)rootViewController
              browserState:(ios::ChromeBrowserState*)browserState
                  delegate:(id<SettingsNavigationControllerDelegate>)delegate
    NS_DESIGNATED_INITIALIZER;

- (instancetype)initWithRootViewController:(UIViewController*)rootViewController
    NS_UNAVAILABLE;

// Returns a new Done button for a UINavigationItem which will call
// closeSettings when it is pressed. Should only be called by view controllers
// owned by SettingsNavigationController.
- (UIBarButtonItem*)doneButton;

// Returns the current main browser state.
- (ios::ChromeBrowserState*)mainBrowserState;

// Notifies this |SettingsNavigationController| that it will be dismissed such
// that it has a possibility to do necessary clean up.
- (void)settingsWillBeDismissed;

// Closes this |SettingsNavigationController| by asking its delegate.
- (void)closeSettings;

// Pops the top view controller if there exists more than one view controller in
// the navigation stack. Closes the settings if the top view controller is the
// only view controller in the navigation stack.
- (void)popViewControllerOrCloseSettingsAnimated:(BOOL)animated;

@end

#endif  // IOS_CHROME_BROWSER_UI_SETTINGS_SETTINGS_NAVIGATION_CONTROLLER_H_