MediaSession2: Move binder interfaces into the updatable

# TODO: Use System SDK once public APIs are approved

# LOCAL_SDK_VERSION := system_current

LOCAL_SRC_FILES := $(call all-java-files-under, src)

LOCAL_SRC_FILES := \

    $(call all-java-files-under, src) \

    $(call all-Iaidl-files-under, src)

LOCAL_PROGUARD_FLAG_FILES := proguard.cfg

LOCAL_MULTILIB := first

/*

 * Copyright 2018 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.media;

import android.os.Bundle;

import android.os.ResultReceiver;

import com.android.media.IMediaSession2Callback;

/**

 * Interface to MediaSession2.

 * <p>

 * Keep this interface oneway. Otherwise a malicious app may implement fake version of this,

 * and holds calls from session to make session owner(s) frozen.

 */

interface IMediaSession2 {

    // TODO(jaewan): add onCommand() to send private command

    // TODO(jaewan): Due to the nature of oneway calls, APIs can be called in out of order

    //               Add id for individual calls to address this.

    // TODO(jaewan): We may consider to add another binder just for the connection

    //               not to expose other methods to the controller whose connection wasn't accepted.

    //               But this would be enough for now because it's the same as existing

    //               MediaBrowser and MediaBrowserService.

    void connect(String callingPackage, IMediaSession2Callback callback);

    void release(IMediaSession2Callback caller);

    //////////////////////////////////////////////////////////////////////////////////////////////

    // send command

    //////////////////////////////////////////////////////////////////////////////////////////////

    void sendCommand(IMediaSession2Callback caller, in Bundle command, in Bundle args);

    void sendTransportControlCommand(IMediaSession2Callback caller,

            int commandCode, in Bundle args);

    void sendCustomCommand(IMediaSession2Callback caller, in Bundle command, in Bundle args,

            in ResultReceiver receiver);

    //////////////////////////////////////////////////////////////////////////////////////////////

    // Get library service specific

    //////////////////////////////////////////////////////////////////////////////////////////////

    void getBrowserRoot(IMediaSession2Callback callback, in Bundle rootHints);

}

/*

 * Copyright 2018 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.media;

import android.os.Bundle;

import android.os.ResultReceiver;

import com.android.media.IMediaSession2;

/**

 * Interface from MediaSession2 to MediaSession2Record.

 * <p>

 * Keep this interface oneway. Otherwise a malicious app may implement fake version of this,

 * and holds calls from session to make session owner(s) frozen.

 */

oneway interface IMediaSession2Callback {

    void onPlaybackStateChanged(in Bundle state);

    void onPlaylistParamsChanged(in Bundle params);

    /**

     * Called only when the controller is created with service's token.

     *

     * @param sessionBinder {@code null} if the connect is rejected or is disconnected. a session

     *     binder if the connect is accepted.

     * @param commands initially allowed commands.

     */

    // TODO(jaewan): Also need to pass flags for allowed actions for permission check.

    //               For example, a media can allow setRating only for whitelisted apps

    //               it's better for controller to know such information in advance.

    //               Follow-up TODO: Add similar functions to the session.

    // TODO(jaewan): Is term 'accepted/rejected' correct? For permission, 'grant' is used.

    void onConnectionChanged(IMediaSession2 sessionBinder, in Bundle commandGroup);

    void onCustomLayoutChanged(in List<Bundle> commandButtonlist);

    void sendCustomCommand(in Bundle command, in Bundle args, in ResultReceiver receiver);

    //////////////////////////////////////////////////////////////////////////////////////////////

    // Browser sepcific

    //////////////////////////////////////////////////////////////////////////////////////////////

    void onGetRootResult(in Bundle rootHints, String rootMediaId, in Bundle rootExtra);

}

package com.android.media;

import android.content.Context;

import android.media.IMediaSession2;

import android.media.MediaBrowser2;

import android.media.MediaBrowser2.BrowserCallback;

import android.media.MediaSession2.CommandButton;

import android.content.Context;

import android.content.Intent;

import android.content.ServiceConnection;

import android.media.IMediaSession2;

import android.media.IMediaSession2Callback;

import android.media.MediaController2.PlaybackInfo;

import android.media.MediaItem2;

import android.media.MediaSession2;