Handle account deactivation from settings

Riot/ViewController/SettingsViewController.m

@@ -34,6 +34,7 @@
 
 #import "CountryPickerViewController.h"
 #import "LanguagePickerViewController.h"
+#import "DeactivateAccountViewController.h"
 
 #import "NBPhoneNumberUtil.h"
 #import "RageShakeManager.h"
@@ -62,6 +63,7 @@ enum
     SETTINGS_SECTION_CRYPTOGRAPHY_INDEX,
     SETTINGS_SECTION_FLAIR_INDEX,
     SETTINGS_SECTION_DEVICES_INDEX,
+    SETTINGS_SECTION_DEACTIVATE_ACCOUNT_INDEX,
     SETTINGS_SECTION_COUNT
 };
 
@@ -130,7 +132,7 @@ enum {
 typedef void (^blockSettingsViewController_onReadyToDestroy)();
 
 
-@interface SettingsViewController ()
+@interface SettingsViewController () <DeactivateAccountViewControllerDelegate>
 {
     // Current alert (if any).
     UIAlertController *currentAlert;
@@ -234,6 +236,10 @@ typedef void (^blockSettingsViewController_onReadyToDestroy)();
  */
 @property (nonatomic) BOOL newPhoneEditingEnabled;
 
+@property (weak, nonatomic) DeactivateAccountViewController *deactivateAccountViewController;
+
+//@property (strong, nonatomic) ErrorPresenter *errorPresenter;
+
 @end
 
 @implementation SettingsViewController
@@ -258,6 +264,9 @@ typedef void (^blockSettingsViewController_onReadyToDestroy)();
     
     self.navigationItem.title = NSLocalizedStringFromTable(@"settings_title", @"Vector", nil);
     
+    // Remove back bar button title when pushing a view controller
+    self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStylePlain target:nil action:nil];
+    
     [self.tableView registerClass:MXKTableViewCellWithLabelAndTextField.class forCellReuseIdentifier:[MXKTableViewCellWithLabelAndTextField defaultReuseIdentifier]];
     [self.tableView registerClass:MXKTableViewCellWithLabelAndSwitch.class forCellReuseIdentifier:[MXKTableViewCellWithLabelAndSwitch defaultReuseIdentifier]];
     [self.tableView registerClass:MXKTableViewCellWithLabelAndMXKImageView.class forCellReuseIdentifier:[MXKTableViewCellWithLabelAndMXKImageView defaultReuseIdentifier]];
@@ -310,6 +319,7 @@ typedef void (^blockSettingsViewController_onReadyToDestroy)();
     
     self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSave target:self action:@selector(onSave:)];
     self.navigationItem.rightBarButtonItem.accessibilityIdentifier=@"SettingsVCNavBarSaveButton";
+
     
     // Observe user interface theme change.
     kRiotDesignValuesDidChangeThemeNotificationObserver = [[NSNotificationCenter defaultCenter] addObserverForName:kRiotDesignValuesDidChangeThemeNotification object:nil queue:[NSOperationQueue mainQueue] usingBlock:^(NSNotification *notif) {
@@ -1268,6 +1278,10 @@ typedef void (^blockSettingsViewController_onReadyToDestroy)();
             count = CRYPTOGRAPHY_COUNT;
         }
     }
+    else if (section == SETTINGS_SECTION_DEACTIVATE_ACCOUNT_INDEX)
+    {
+        count = 1;
+    }
     return count;
 }
 
@@ -2151,6 +2165,32 @@ typedef void (^blockSettingsViewController_onReadyToDestroy)();
             cell = exportKeysBtnCell;
         }
     }
+    else if (section == SETTINGS_SECTION_DEACTIVATE_ACCOUNT_INDEX)
+    {
+        MXKTableViewCellWithButton *deactivateAccountBtnCell = [tableView dequeueReusableCellWithIdentifier:[MXKTableViewCellWithButton defaultReuseIdentifier]];
+        
+        if (!deactivateAccountBtnCell)
+        {
+            deactivateAccountBtnCell = [[MXKTableViewCellWithButton alloc] init];
+        }
+        else
+        {
+            // Fix https://github.com/vector-im/riot-ios/issues/1354
+            deactivateAccountBtnCell.mxkButton.titleLabel.text = nil;
+        }
+        
+        NSString *btnTitle = NSLocalizedStringFromTable(@"settings_deactivate_my_account", @"Vector", nil);
+        [deactivateAccountBtnCell.mxkButton setTitle:btnTitle forState:UIControlStateNormal];
+        [deactivateAccountBtnCell.mxkButton setTitle:btnTitle forState:UIControlStateHighlighted];
+        [deactivateAccountBtnCell.mxkButton setTintColor:kRiotColorRed];
+        deactivateAccountBtnCell.mxkButton.titleLabel.font = [UIFont systemFontOfSize:17];
+        
+        [deactivateAccountBtnCell.mxkButton removeTarget:self action:nil forControlEvents:UIControlEventTouchUpInside];
+        [deactivateAccountBtnCell.mxkButton addTarget:self action:@selector(deactivateAccountAction) forControlEvents:UIControlEventTouchUpInside];
+        deactivateAccountBtnCell.mxkButton.accessibilityIdentifier = nil;
+        
+        cell = deactivateAccountBtnCell;
+    }
 
     return cell;
 }
@@ -2228,6 +2268,18 @@ typedef void (^blockSettingsViewController_onReadyToDestroy)();
             return NSLocalizedStringFromTable(@"settings_cryptography", @"Vector", nil);
         }
     }
+    else if (section == SETTINGS_SECTION_CRYPTOGRAPHY_INDEX)
+    {
+        // Check whether this section is visible
+        if (self.mainSession.crypto)
+        {
+            return NSLocalizedStringFromTable(@"settings_cryptography", @"Vector", nil);
+        }
+    }
+    else if (section == SETTINGS_SECTION_DEACTIVATE_ACCOUNT_INDEX)
+    {
+        return NSLocalizedStringFromTable(@"settings_deactivate_my_account", @"Vector", nil);
+    }
     
     return nil;
 }
@@ -3673,6 +3725,20 @@ typedef void (^blockSettingsViewController_onReadyToDestroy)();
     [self presentViewController:themePicker animated:YES completion:nil];
 }
 
+- (void)deactivateAccountAction
+{
+    DeactivateAccountViewController *deactivateAccountViewController = [DeactivateAccountViewController instantiateWithMatrixSession:self.mainSession];
+    
+    UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:deactivateAccountViewController];
+    navigationController.modalPresentationStyle = UIModalPresentationFormSheet;
+    
+    [self presentViewController:navigationController animated:YES completion:nil];
+    
+    deactivateAccountViewController.delegate = self;
+    
+    self.deactivateAccountViewController = deactivateAccountViewController;
+}
+
 #pragma mark - MediaPickerViewController Delegate
 
 - (void)dismissMediaPicker
@@ -4033,4 +4099,20 @@ typedef void (^blockSettingsViewController_onReadyToDestroy)();
     [self refreshSettings];
 }
 
+#pragma mark - DeactivateAccountViewControllerDelegate
+
+- (void)deactivateAccountViewControllerDidDeactivateWithSuccess:(DeactivateAccountViewController *)deactivateAccountViewController
+{
+    NSLog(@"[SettingsViewController] Deactivate account with success");
+    
+    [[AppDelegate theDelegate] logoutWithCompletion:^(BOOL isLoggedOut) {
+        NSLog(@"[SettingsViewController] Complete clear user data after account deactivation");
+    }];
+}
+
+- (void)deactivateAccountViewControllerDidCancel:(DeactivateAccountViewController *)deactivateAccountViewController
+{
+    [deactivateAccountViewController dismissViewControllerAnimated:YES completion:nil];
+}
+
 @end