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WebDriverAgentLib/Utilities/FBTVNavigationTracker.h

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+/**
+ * Copyright (c) 2018-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <Foundation/Foundation.h>
+#import <XCTest/XCUIElement.h>
+
+#if TARGET_OS_TV
+
+/**
+ Defines directions to move focuse to.
+ */
+typedef NS_ENUM(NSUInteger, FBTVDirection) {
+  FBTVDirectionUp     = 0,
+  FBTVDirectionDown   = 1,
+  FBTVDirectionLeft   = 2,
+  FBTVDirectionRight  = 3,
+  FBTVDirectionNone   = 4
+};
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface FBTVNavigationItem : NSObject
+@end
+
+@interface FBTVNavigationTracker : NSObject
+
+/**
+ Track the target element's point
+
+ @param targetElement A target element which will track
+ @return An instancce of FBTVNavigationTracker
+ */
++ (instancetype)trackerWithTargetElement: (XCUIElement *) targetElement;
+
+/**
+ Determine the correct direction to move the focus to the tracked target
+ element from the currently focused one
+
+ @return FBTVDirection to move the focus to
+ */
+- (FBTVDirection)directionToFocusedElement;
+
+@end
+
+NS_ASSUME_NONNULL_END
+
+#endif