Add touch navigation input source

Bug: 8276741
Change-Id: I674b9804bf9ae76d694ae7073b54a7d43474a43c

1 files changed, 19 insertions, 1 deletions

diff --git a/core/java/android/view/InputDevice.java b/core/java/android/view/InputDevice.java
index c3dc76d81b99..dd523d23ea19 100644
--- a/core/java/android/view/InputDevice.java
+++ b/core/java/android/view/InputDevice.java
@@ -62,7 +62,14 @@ public final class InputDevice implements Parcelable {
      * specify the desired interpretation for its input events.
      */
     public static final int SOURCE_CLASS_MASK = 0x000000ff;
-    
+
+    /**
+     * The input source has no class.
+     *
+     * It is up to the application to determine how to handle the device based on the device type.
+     */
+    public static final int SOURCE_CLASS_NONE = 0x00000000;
+
     /**
      * The input source has buttons or keys.
      * Examples: {@link #SOURCE_KEYBOARD}, {@link #SOURCE_DPAD}.
@@ -202,6 +209,17 @@ public final class InputDevice implements Parcelable {
     public static final int SOURCE_TOUCHPAD = 0x00100000 | SOURCE_CLASS_POSITION;
 
     /**
+     * The input source is a touch device whose motions should be interpreted as navigation events.
+     *
+     * For example, an upward swipe should be as an upward focus traversal in the same manner as
+     * pressing up on a D-Pad would be. Swipes to the left, right and down should be treated in a
+     * similar manner.
+     *
+     * @see #SOURCE_CLASS_NONE
+     */
+    public static final int SOURCE_TOUCH_NAVIGATION = 0x00200000 | SOURCE_CLASS_NONE;
+
+    /**
      * The input source is a joystick.
      * (It may also be a {@link #SOURCE_GAMEPAD}).
      *