Add action for Bluetooth tethering state changed

Add new action for Bluetooth tethering state changed and extra for
broadcasting Bluetooth tethering state changed.

Tag: #feature
Bug: 138688805
Test: Manual
Change-Id: Ie0f848448f9717a6a1233d0dbb0785da7d30dc81

4 files changed, 45 insertions, 0 deletions

diff --git a/api/system-current.txt b/api/system-current.txt
index c0364a3de18f..6642bd107c86 100755
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -1578,12 +1578,16 @@ package android.bluetooth {
     method @RequiresPermission(android.Manifest.permission.BLUETOOTH_PRIVILEGED) public void setBluetoothTethering(boolean);
     method @RequiresPermission(android.Manifest.permission.BLUETOOTH_PRIVILEGED) public boolean setConnectionPolicy(@NonNull android.bluetooth.BluetoothDevice, int);
     field public static final String ACTION_CONNECTION_STATE_CHANGED = "android.bluetooth.pan.profile.action.CONNECTION_STATE_CHANGED";
+    field public static final String ACTION_TETHERING_STATE_CHANGED = "android.bluetooth.action.TETHERING_STATE_CHANGED";
     field public static final String EXTRA_LOCAL_ROLE = "android.bluetooth.pan.extra.LOCAL_ROLE";
+    field public static final String EXTRA_TETHERING_STATE = "android.bluetooth.extra.TETHERING_STATE";
     field public static final int LOCAL_NAP_ROLE = 1; // 0x1
     field public static final int LOCAL_PANU_ROLE = 2; // 0x2
     field public static final int PAN_ROLE_NONE = 0; // 0x0
     field public static final int REMOTE_NAP_ROLE = 1; // 0x1
     field public static final int REMOTE_PANU_ROLE = 2; // 0x2
+    field public static final int TETHERING_STATE_OFF = 1; // 0x1
+    field public static final int TETHERING_STATE_ON = 2; // 0x2
   }
 
   public class BluetoothPbap implements android.bluetooth.BluetoothProfile {
diff --git a/core/java/android/bluetooth/BluetoothPan.java b/core/java/android/bluetooth/BluetoothPan.java
index bfc28fae6e65..4698b077ff55 100644
--- a/core/java/android/bluetooth/BluetoothPan.java
+++ b/core/java/android/bluetooth/BluetoothPan.java
@@ -89,6 +89,33 @@ public final class BluetoothPan implements BluetoothProfile {
     @SuppressLint("ActionValue")
     public static final String EXTRA_LOCAL_ROLE = "android.bluetooth.pan.extra.LOCAL_ROLE";
 
+    /**
+     * Intent used to broadcast the change in tethering state of the Pan
+     * Profile
+     *
+     * <p>This intent will have 1 extra:
+     * <ul>
+     * <li> {@link #EXTRA_TETHERING_STATE} - The current state of Bluetooth
+     * tethering. </li>
+     * </ul>
+     *
+     * <p> {@link #EXTRA_TETHERING_STATE} can be any of {@link #TETHERING_STATE_OFF} or
+     * {@link #TETHERING_STATE_ON}
+     * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission to
+     * receive.
+     */
+    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
+    public static final String ACTION_TETHERING_STATE_CHANGED =
+            "android.bluetooth.action.TETHERING_STATE_CHANGED";
+
+    /**
+     * Extra for {@link #ACTION_TETHERING_STATE_CHANGED} intent
+     * The tethering state of the PAN profile.
+     * It can be one of {@link #TETHERING_STATE_OFF} or {@link #TETHERING_STATE_ON}.
+     */
+    public static final String EXTRA_TETHERING_STATE =
+            "android.bluetooth.extra.TETHERING_STATE";
+
     /** @hide */
     @IntDef({PAN_ROLE_NONE, LOCAL_NAP_ROLE, LOCAL_PANU_ROLE})
     @Retention(RetentionPolicy.SOURCE)
@@ -114,6 +141,14 @@ public final class BluetoothPan implements BluetoothProfile {
 
     public static final int REMOTE_PANU_ROLE = 2;
 
+    /** @hide **/
+    @IntDef({TETHERING_STATE_OFF, TETHERING_STATE_ON})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface TetheringState{}
+
+    public static final int TETHERING_STATE_OFF = 1;
+
+    public static final int TETHERING_STATE_ON = 2;
     /**
      * Return codes for the connect and disconnect Bluez / Dbus calls.
      *
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index f1e186813ad8..fba9384030b7 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -236,6 +236,8 @@
         android:name="com.android.bluetooth.BluetoothMapContentObserver.action.MESSAGE_DELIVERY" />
     <protected-broadcast
         android:name="android.bluetooth.pan.profile.action.CONNECTION_STATE_CHANGED" />
+    <protected-broadcast
+        android:name="android.bluetooth.action.TETHERING_STATE_CHANGED" />
     <protected-broadcast android:name="android.bluetooth.pbap.profile.action.CONNECTION_STATE_CHANGED" />
     <protected-broadcast android:name="android.bluetooth.pbapclient.profile.action.CONNECTION_STATE_CHANGED" />
     <protected-broadcast android:name="android.bluetooth.sap.profile.action.CONNECTION_STATE_CHANGED" />
diff --git a/non-updatable-api/system-current.txt b/non-updatable-api/system-current.txt
index 31b71fb5ca4d..607094e094ca 100644
--- a/non-updatable-api/system-current.txt
+++ b/non-updatable-api/system-current.txt
@@ -1526,12 +1526,16 @@ package android.bluetooth {
     method @RequiresPermission(android.Manifest.permission.BLUETOOTH_PRIVILEGED) public void setBluetoothTethering(boolean);
     method @RequiresPermission(android.Manifest.permission.BLUETOOTH_PRIVILEGED) public boolean setConnectionPolicy(@NonNull android.bluetooth.BluetoothDevice, int);
     field public static final String ACTION_CONNECTION_STATE_CHANGED = "android.bluetooth.pan.profile.action.CONNECTION_STATE_CHANGED";
+    field public static final String ACTION_TETHERING_STATE_CHANGED = "android.bluetooth.action.TETHERING_STATE_CHANGED";
     field public static final String EXTRA_LOCAL_ROLE = "android.bluetooth.pan.extra.LOCAL_ROLE";
+    field public static final String EXTRA_TETHERING_STATE = "android.bluetooth.extra.TETHERING_STATE";
     field public static final int LOCAL_NAP_ROLE = 1; // 0x1
     field public static final int LOCAL_PANU_ROLE = 2; // 0x2
     field public static final int PAN_ROLE_NONE = 0; // 0x0
     field public static final int REMOTE_NAP_ROLE = 1; // 0x1
     field public static final int REMOTE_PANU_ROLE = 2; // 0x2
+    field public static final int TETHERING_STATE_OFF = 1; // 0x1
+    field public static final int TETHERING_STATE_ON = 2; // 0x2
   }
 
   public class BluetoothPbap implements android.bluetooth.BluetoothProfile {