Move CC extensions to frameworks/base/libs

// Copyright (C) 2025 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 {

    default_applicable_licenses: [

        "Android-Apache-2.0",

        "vendor_google_libraries_computercontrol_license",

    ],

}

license {

    name: "vendor_google_libraries_computercontrol_license",

    visibility: [":__subpackages__"],

    license_kinds: ["SPDX-license-identifier-Apache-2.0"],

}

java_library {

    name: "com.android.extensions.computercontrol",

    srcs: [

        "src/com/android/extensions/computercontrol/**/*.java",

    ],

    installable: true,

    sdk_version: "core_platform",

    system_ext_specific: true,

    libs: [

        "androidx.annotation_annotation",

        "framework",

    ],

    required: ["computercontrol.extension.xml"],

}

prebuilt_etc {

    name: "computercontrol.extension.xml",

    system_ext_specific: true,

    sub_dir: "permissions",

    src: "computercontrol.extension.xml",

    filename_from_src: true,

}

# Bug component: 1807135

set noparent

include /services/companion/java/com/android/server/companion/virtual/OWNERS

{

  "presubmit": [

    {

      "name": "ComputerControlTests"

    }

  ]

}

 No newline at end of file

<?xml version="1.0" encoding="utf-8"?>

<!--

  ~ Copyright (C) 2025 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.

  -->

<permissions>

    <library

        name="com.android.extensions.computercontrol"

        file="/system_ext/framework/com.android.extensions.computercontrol.jar"/>

</permissions>

/*

 * Copyright (C) 2025 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.extensions.computercontrol;

import android.Manifest;

import android.annotation.RequiresPermission;

import android.companion.virtual.VirtualDeviceManager;

import android.companion.virtual.computercontrol.ComputerControlSessionParams;

import android.content.Context;

import android.content.pm.PackageManager;

import android.view.accessibility.AccessibilityManager;

import androidx.annotation.NonNull;

import androidx.annotation.Nullable;

import androidx.annotation.VisibleForTesting;

import java.util.Objects;

import java.util.concurrent.Executor;

/**

 * Extensions for Computer Control features.

 *

 * Internally relies on multiple system features that may be unavailable. Getting an instance via

 * {@link #getInstance(Context)} will enable the creation of new {@link ComputerControlSession}s

 * that enable inputs and outputs for computer control features.

 */

public class ComputerControlExtensions {

    // v0 is unstable and may change at any point in time.

    @VisibleForTesting static final int EXTENSIONS_VERSION = 0;

    private ComputerControlExtensions() {}

    /**

     * Retrieve the current version of the extensions.

     */

    public static int getVersion() {

        return EXTENSIONS_VERSION;

    }

    /**

     * Gets an instance of the ComputerControlExtensions. These extensions can be unavailable on

     * devices. In such cases {@code null} is returned and the extensions won't be available on this

     * device.

     *

     * @param context Context to fetch system features

     * @return An instance of ComputerControlExtensions, or {@code null} if the extensions are

     * unavailable.

     */

    @Nullable

    public static ComputerControlExtensions getInstance(Context context) {

        if (!isAvailable(context)) {

            return null;

        }

        return new ComputerControlExtensions();

    }

    /**

     * Requests a new {@link ComputerControlSession} for the given parameters. When the session is

     * no longer used it should be closed by calling {@link ComputerControlSession#close()}.

     *

     * @param params parameters to use for this ComputerControlSession.

     * @param executor An executor to run the callback on.

     * @param callback A callback to get notified about the result of this operation.

     */

    @RequiresPermission(Manifest.permission.ACCESS_COMPUTER_CONTROL)

    public void requestSession(@NonNull ComputerControlSession.Params params,

            @NonNull Executor executor, @NonNull ComputerControlSession.Callback callback) {

        Objects.requireNonNull(params, "Missing ComputerControlSession.Params");

        Objects.requireNonNull(executor, "Missing Executor");

        Objects.requireNonNull(callback, "Missing ComputerControlSession.Callback");

        ComputerControlSessionParams sessionParams =

                new ComputerControlSessionParams.Builder()

                        .setName(params.getName())

                        .setDisplayWidthPx(params.getDisplayWidthPx())

                        .setDisplayHeightPx(params.getDisplayHeightPx())

                        .setDisplayDpi(params.getDisplayDpi())

                        .setDisplaySurface(params.getDisplaySurface())

                        .setDisplayAlwaysUnlocked(params.isDisplayAlwaysUnlocked())

                        .build();

        var sessionCallback =

                new android.companion.virtual.computercontrol.ComputerControlSession.Callback() {

                    @Override

                    public void onSessionCreated(

                            @NonNull android.companion.virtual.computercontrol

                                    .ComputerControlSession session) {

                        AccessibilityManager accessibilityManager =

                                params.getContext().getSystemService(AccessibilityManager.class);

                        callback.onSessionCreated(

                                new ComputerControlSession(session, params, accessibilityManager));

                    }

                    @Override

                    public void onSessionCreationFailed(

                            @android.companion.virtual.computercontrol.ComputerControlSession

                                    .SessionCreationError int errorCode) {

                        callback.onSessionCreationFailed(errorCode);

                    }

                    @Override

                    public void onSessionClosed() {

                        callback.onSessionClosed();

                    }

                };

        VirtualDeviceManager vdm = params.getContext().getSystemService(VirtualDeviceManager.class);

        vdm.requestComputerControlSession(sessionParams, executor, sessionCallback);

    }

    /**

     * @return {@code true} if computer control is available and can be used. When the computer

     * control extensions are not available the current Android device is missing some configuration

     * that makes them unsupported. Computer control cannot be used on such devices.

     */

    private static boolean isAvailable(Context context) {

        if (!context.getPackageManager().hasSystemFeature(

                    PackageManager.FEATURE_ACTIVITIES_ON_SECONDARY_DISPLAYS)) {

            return false;

        }

        return context.getSystemService(VirtualDeviceManager.class) != null;

    }

}