| /** |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.server.vr; |
| |
| import android.annotation.NonNull; |
| import android.content.ComponentName; |
| |
| /** |
| * Service for accessing the VR mode manager. |
| * |
| * @hide Only for use within system server. |
| */ |
| public abstract class VrManagerInternal { |
| |
| /** |
| * The error code returned on success. |
| */ |
| public static final int NO_ERROR = 0; |
| |
| /** |
| * Return current VR mode state. |
| * |
| * @return {@code true} if VR mode is enabled. |
| */ |
| public abstract boolean isInVrMode(); |
| |
| /** |
| * Set the current VR mode state. |
| * |
| * @param enabled {@code true} to enable VR mode. |
| * @param packageName The package name of the requested VrListenerService to bind. |
| * @param userId the user requesting the VrListenerService component. |
| */ |
| public abstract void setVrMode(boolean enabled, @NonNull ComponentName packageName, |
| int userId); |
| |
| /** |
| * Add a listener for VR mode state changes. |
| * <p> |
| * This listener will immediately be called with the current VR mode state. |
| * </p> |
| * @param listener the listener instance to add. |
| */ |
| public abstract void registerListener(@NonNull VrStateListener listener); |
| |
| /** |
| * Remove the listener from the current set of listeners. |
| * |
| * @param listener the listener to remove. |
| */ |
| public abstract void unregisterListener(@NonNull VrStateListener listener); |
| |
| /** |
| * Return NO_ERROR if the given package is installed on the device and enabled as a |
| * VrListenerService for the given current user, or a negative error code indicating a failure. |
| * |
| * @param packageName the name of the package to check, or null to select the default package. |
| * @return NO_ERROR if the given package is installed and is enabled, or a negative error code |
| * given in {@link android.service.vr.VrModeException} on failure. |
| */ |
| public abstract int hasVrPackage(@NonNull ComponentName packageName, int userId); |
| |
| } |