Creates new FLAG_APP_INACCESSIBLE flag for DeviceState

Creates new flag to signify a device state that is inaccessible
for an application to be launched on. This helps improve CTS
testing to make sure we're only testing on device states that
make sense.

Bug: 230826329
Test: adb shell cmd device_state print-states
Change-Id: I21acb936a721af62a4a9a4566246954943f05f67

services/core/java/com/android/server/devicestate/DeviceState.java

@@ -18,6 +18,7 @@ package com.android.server.devicestate;
 
 import static android.hardware.devicestate.DeviceStateManager.MAXIMUM_DEVICE_STATE;
 import static android.hardware.devicestate.DeviceStateManager.MINIMUM_DEVICE_STATE;
+import static android.view.Display.DEFAULT_DISPLAY;
 
 import android.annotation.IntDef;
 import android.annotation.IntRange;
@@ -48,9 +49,16 @@ public final class DeviceState {
      */
     public static final int FLAG_CANCEL_OVERRIDE_REQUESTS = 1 << 0;
 
+    /**
+     * Flag that indicates this device state is inaccessible for applications to be placed in. This
+     * could be a device-state where the {@link DEFAULT_DISPLAY} is not enabled.
+     */
+    public static final int FLAG_APP_INACCESSIBLE = 1 << 1;
+
     /** @hide */
     @IntDef(prefix = {"FLAG_"}, flag = true, value = {
             FLAG_CANCEL_OVERRIDE_REQUESTS,
+            FLAG_APP_INACCESSIBLE
     })
     @Retention(RetentionPolicy.SOURCE)
     public @interface DeviceStateFlags {}
@@ -97,7 +105,8 @@ public final class DeviceState {
 
     @Override
     public String toString() {
-        return "DeviceState{" + "identifier=" + mIdentifier + ", name='" + mName + '\'' + '}';
+        return "DeviceState{" + "identifier=" + mIdentifier + ", name='" + mName + '\''
+                + ", app_accessible=" + !hasFlag(FLAG_APP_INACCESSIBLE) + "}";
     }
 
     @Override

services/core/java/com/android/server/policy/DeviceStateProviderImpl.java

@@ -95,6 +95,7 @@ public final class DeviceStateProviderImpl implements DeviceStateProvider,
     private static final String DATA_CONFIG_FILE_PATH = "system/devicestate/";
     private static final String CONFIG_FILE_NAME = "device_state_configuration.xml";
     private static final String FLAG_CANCEL_OVERRIDE_REQUESTS = "FLAG_CANCEL_OVERRIDE_REQUESTS";
+    private static final String FLAG_APP_INACCESSIBLE = "FLAG_APP_INACCESSIBLE";
 
     /** Interface that allows reading the device state configuration. */
     interface ReadableConfig {
@@ -145,6 +146,9 @@ public final class DeviceStateProviderImpl implements DeviceStateProvider,
                                 case FLAG_CANCEL_OVERRIDE_REQUESTS:
                                     flags |= DeviceState.FLAG_CANCEL_OVERRIDE_REQUESTS;
                                     break;
+                                case FLAG_APP_INACCESSIBLE:
+                                    flags |= DeviceState.FLAG_APP_INACCESSIBLE;
+                                    break;
                                 default:
                                     Slog.w(TAG, "Parsed unknown flag with name: "
                                             + configFlagString);