Use compat framework to gate session actions

Adds CompatChange to check if an app posting media controls targets T,
and if so, that app's controls will use PlaybackState actions.
Otherwise, the notification actions will be used.

The MEDIA_SESSION_ACTIONS flag is set to false by default, and can be
used to override this and use session actions for all apps.

Fixes: 220034304
Test: atest com.android.systemui.media
Test: manual - verify in developer settings, override behavior works

Change-Id: Ie032fe9ec8ce7d46b1f9dc8f590ed6fbfa7ee9aa

1 files changed, 39 insertions, 0 deletions

diff --git a/core/java/android/app/StatusBarManager.java b/core/java/android/app/StatusBarManager.java
index 89854bbab3e8..150888ccb2d8 100644
--- a/core/java/android/app/StatusBarManager.java
+++ b/core/java/android/app/StatusBarManager.java
@@ -24,6 +24,9 @@ import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
 import android.annotation.SystemService;
 import android.annotation.TestApi;
+import android.app.compat.CompatChanges;
+import android.compat.annotation.ChangeId;
+import android.compat.annotation.EnabledSince;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.content.ComponentName;
 import android.content.Context;
@@ -39,6 +42,7 @@ import android.os.Bundle;
 import android.os.IBinder;
 import android.os.RemoteException;
 import android.os.ServiceManager;
+import android.os.UserHandle;
 import android.util.Pair;
 import android.util.Slog;
 import android.view.View;
@@ -520,6 +524,27 @@ public class StatusBarManager {
     private final Map<NearbyMediaDevicesProvider, NearbyMediaDevicesProviderWrapper>
             nearbyMediaDevicesProviderMap = new HashMap<>();
 
+    /**
+     * Media controls based on {@link android.app.Notification.MediaStyle} notifications will have
+     * actions based on the media session's {@link android.media.session.PlaybackState}, rather than
+     * the notification's actions.
+     *
+     * These actions will be:
+     * - Play/Pause (depending on whether the current state is a playing state)
+     * - Previous (if declared), or a custom action if the slot is not reserved with
+     *   {@code SESSION_EXTRAS_KEY_SLOT_RESERVATION_SKIP_TO_PREV}
+     * - Next (if declared), or a custom action if the slot is not reserved with
+     *   {@code SESSION_EXTRAS_KEY_SLOT_RESERVATION_SKIP_TO_NEXT}
+     * - Custom action
+     * - Custom action
+     *
+     * @see androidx.media.utils.MediaConstants#SESSION_EXTRAS_KEY_SLOT_RESERVATION_SKIP_TO_PREV
+     * @see androidx.media.utils.MediaConstants#SESSION_EXTRAS_KEY_SLOT_RESERVATION_SKIP_TO_NEXT
+     */
+    @ChangeId
+    @EnabledSince(targetSdkVersion = Build.VERSION_CODES.TIRAMISU)
+    private static final long MEDIA_CONTROL_SESSION_ACTIONS = 203800354L;
+
     @UnsupportedAppUsage
     private Context mContext;
     private IStatusBarService mService;
@@ -1127,6 +1152,20 @@ public class StatusBarManager {
         }
     }
 
+    /**
+     * Checks whether the given package should use session-based actions for its media controls.
+     *
+     * @param packageName App posting media controls
+     * @param userId Current user ID
+     * @return true if the app supports session actions
+     *
+     * @hide
+     */
+    public static boolean useMediaSessionActionsForApp(String packageName, int userId) {
+        UserHandle handle = UserHandle.getUserHandleForUid(userId);
+        return CompatChanges.isChangeEnabled(MEDIA_CONTROL_SESSION_ACTIONS, packageName, handle);
+    }
+
     /** @hide */
     public static String windowStateToString(int state) {
         if (state == WINDOW_STATE_HIDING) return "WINDOW_STATE_HIDING";