Add Keyboard Accessory Bar

1- Change parent class of "AutofillAddCreditCardViewController" to
   "AutofillEditTableViewController".
2- Set "AutofillAddCreditCardViewController" as a delegate for TableView Cells.
3- Add a check for type of the TableView cells in "AutofillEditTableViewController".

Bug: 984545
Change-Id: I82296c8defbcd20b4b04d0c6465bb5127a52428f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1771913Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Reviewed-by: Javier Ernesto Flores Robles <javierrobles@chromium.org>
Commit-Queue: Reda Tawfik <redatawfik@google.com>
Cr-Commit-Position: refs/heads/master@{#692003}

ios/chrome/browser/ui/settings/autofill/autofill_add_credit_card_view_controller.h

@@ -7,14 +7,14 @@
 
 #import <UIKit/UIKit.h>
 
+#import "ios/chrome/browser/ui/settings/autofill/autofill_edit_table_view_controller.h"
 #import "ios/chrome/browser/ui/settings/credit_card_scanner/credit_card_consumer.h"
-#import "ios/chrome/browser/ui/settings/settings_root_table_view_controller.h"
 
 @protocol AddCreditCardViewControllerDelegate;
 
 // The view controller for adding new credit card.
 @interface AutofillAddCreditCardViewController
-    : SettingsRootTableViewController <CreditCardConsumer>
+    : AutofillEditTableViewController <CreditCardConsumer>
 
 // Initializes a AutofillAddCreditCardViewController with passed delegate.
 - (instancetype)initWithDelegate:

ios/chrome/browser/ui/settings/autofill/autofill_add_credit_card_view_controller.mm

@@ -203,6 +203,25 @@ typedef NS_ENUM(NSInteger, ItemType) {
   }
   return nil;
 }
+
+#pragma mark - UITableViewDataSource
+
+- (UITableViewCell*)tableView:(UITableView*)tableView
+        cellForRowAtIndexPath:(NSIndexPath*)indexPath {
+  UITableViewCell* cell = [super tableView:tableView
+                     cellForRowAtIndexPath:indexPath];
+
+  // Use |ObjCCast| because |cell| might not be |TableViewTextEditCell|.
+  // Set the delegate and style for only |TableViewTextEditCell| type of cell
+  // not other types.
+  TableViewTextEditCell* editCell =
+      base::mac::ObjCCast<TableViewTextEditCell>(cell);
+  editCell.textField.delegate = self;
+  editCell.selectionStyle = UITableViewCellSelectionStyleNone;
+
+  return cell;
+}
+
 #pragma mark - CreditCardConsumer
 
 // TODO(crbug.com/984545): This method will be called from

ios/chrome/browser/ui/settings/autofill/autofill_edit_table_view_controller.mm

@@ -178,8 +178,15 @@
   NSIndexPath* previousPath = [self indexForCellPathWithOffset:-1
                                                       fromPath:currentPath];
 
-  [self.formInputAccessoryView.previousButton setEnabled:previousPath != nil];
-  [self.formInputAccessoryView.nextButton setEnabled:nextPath != nil];
+  BOOL isValidPreviousPath =
+      previousPath && [[self.tableView cellForRowAtIndexPath:previousPath]
+                          isKindOfClass:TableViewTextEditCell.class];
+  self.formInputAccessoryView.previousButton.enabled = isValidPreviousPath;
+
+  BOOL isValidNextPath =
+      nextPath && [[self.tableView cellForRowAtIndexPath:nextPath]
+                      isKindOfClass:TableViewTextEditCell.class];
+  self.formInputAccessoryView.nextButton.enabled = isValidNextPath;
 }
 
 #pragma mark - Keyboard handling