| /* | 
 |  * Copyright (C) 2014 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 android.telecom; | 
 |  | 
 | import android.Manifest; | 
 | import android.annotation.NonNull; | 
 | import android.annotation.Nullable; | 
 | import android.annotation.RequiresPermission; | 
 | import android.annotation.SystemApi; | 
 | import android.hardware.camera2.CameraManager; | 
 | import android.net.Uri; | 
 | import android.os.BadParcelableException; | 
 | import android.os.Bundle; | 
 | import android.os.Handler; | 
 | import android.os.IBinder; | 
 | import android.os.RemoteException; | 
 | import android.telecom.Logging.Session; | 
 | import android.view.Surface; | 
 |  | 
 | import com.android.internal.telecom.IConnectionService; | 
 | import com.android.internal.telecom.IVideoCallback; | 
 | import com.android.internal.telecom.IVideoProvider; | 
 |  | 
 | import java.util.ArrayList; | 
 | import java.util.Collections; | 
 | import java.util.List; | 
 | import java.util.Set; | 
 | import java.util.concurrent.ConcurrentHashMap; | 
 |  | 
 | /** | 
 |  * A connection provided to a {@link ConnectionService} by another {@code ConnectionService} | 
 |  * running in a different process. | 
 |  * | 
 |  * @see ConnectionService#createRemoteOutgoingConnection(PhoneAccountHandle, ConnectionRequest) | 
 |  * @see ConnectionService#createRemoteIncomingConnection(PhoneAccountHandle, ConnectionRequest) | 
 |  */ | 
 | public final class RemoteConnection { | 
 |  | 
 |     /** | 
 |      * Callback base class for {@link RemoteConnection}. | 
 |      */ | 
 |     public static abstract class Callback { | 
 |         /** | 
 |          * Invoked when the state of this {@code RemoteConnection} has changed. See | 
 |          * {@link #getState()}. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param state The new state of the {@code RemoteConnection}. | 
 |          */ | 
 |         public void onStateChanged(RemoteConnection connection, int state) {} | 
 |  | 
 |         /** | 
 |          * Invoked when this {@code RemoteConnection} is disconnected. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param disconnectCause The ({@see DisconnectCause}) associated with this failed | 
 |          *     connection. | 
 |          */ | 
 |         public void onDisconnected( | 
 |                 RemoteConnection connection, | 
 |                 DisconnectCause disconnectCause) {} | 
 |  | 
 |         /** | 
 |          * Invoked when this {@code RemoteConnection} is requesting ringback. See | 
 |          * {@link #isRingbackRequested()}. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param ringback Whether the {@code RemoteConnection} is requesting ringback. | 
 |          */ | 
 |         public void onRingbackRequested(RemoteConnection connection, boolean ringback) {} | 
 |  | 
 |         /** | 
 |          * Indicates that the call capabilities of this {@code RemoteConnection} have changed. | 
 |          * See {@link #getConnectionCapabilities()}. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param connectionCapabilities The new capabilities of the {@code RemoteConnection}. | 
 |          */ | 
 |         public void onConnectionCapabilitiesChanged( | 
 |                 RemoteConnection connection, | 
 |                 int connectionCapabilities) {} | 
 |  | 
 |         /** | 
 |          * Indicates that the call properties of this {@code RemoteConnection} have changed. | 
 |          * See {@link #getConnectionProperties()}. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param connectionProperties The new properties of the {@code RemoteConnection}. | 
 |          */ | 
 |         public void onConnectionPropertiesChanged( | 
 |                 RemoteConnection connection, | 
 |                 int connectionProperties) {} | 
 |  | 
 |         /** | 
 |          * Invoked when the post-dial sequence in the outgoing {@code Connection} has reached a | 
 |          * pause character. This causes the post-dial signals to stop pending user confirmation. An | 
 |          * implementation should present this choice to the user and invoke | 
 |          * {@link RemoteConnection#postDialContinue(boolean)} when the user makes the choice. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param remainingPostDialSequence The post-dial characters that remain to be sent. | 
 |          */ | 
 |         public void onPostDialWait(RemoteConnection connection, String remainingPostDialSequence) {} | 
 |  | 
 |         /** | 
 |          * Invoked when the post-dial sequence in the outgoing {@code Connection} has processed | 
 |          * a character. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param nextChar The character being processed. | 
 |          */ | 
 |         public void onPostDialChar(RemoteConnection connection, char nextChar) {} | 
 |  | 
 |         /** | 
 |          * Indicates that the VOIP audio status of this {@code RemoteConnection} has changed. | 
 |          * See {@link #isVoipAudioMode()}. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param isVoip Whether the new audio state of the {@code RemoteConnection} is VOIP. | 
 |          */ | 
 |         public void onVoipAudioChanged(RemoteConnection connection, boolean isVoip) {} | 
 |  | 
 |         /** | 
 |          * Indicates that the status hints of this {@code RemoteConnection} have changed. See | 
 |          * {@link #getStatusHints()} ()}. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param statusHints The new status hints of the {@code RemoteConnection}. | 
 |          */ | 
 |         public void onStatusHintsChanged(RemoteConnection connection, StatusHints statusHints) {} | 
 |  | 
 |         /** | 
 |          * Indicates that the address (e.g., phone number) of this {@code RemoteConnection} has | 
 |          * changed. See {@link #getAddress()} and {@link #getAddressPresentation()}. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param address The new address of the {@code RemoteConnection}. | 
 |          * @param presentation The presentation requirements for the address. | 
 |          *        See {@link TelecomManager} for valid values. | 
 |          */ | 
 |         public void onAddressChanged(RemoteConnection connection, Uri address, int presentation) {} | 
 |  | 
 |         /** | 
 |          * Indicates that the caller display name of this {@code RemoteConnection} has changed. | 
 |          * See {@link #getCallerDisplayName()} and {@link #getCallerDisplayNamePresentation()}. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param callerDisplayName The new caller display name of the {@code RemoteConnection}. | 
 |          * @param presentation The presentation requirements for the handle. | 
 |          *        See {@link TelecomManager} for valid values. | 
 |          */ | 
 |         public void onCallerDisplayNameChanged( | 
 |                 RemoteConnection connection, String callerDisplayName, int presentation) {} | 
 |  | 
 |         /** | 
 |          * Indicates that the video state of this {@code RemoteConnection} has changed. | 
 |          * See {@link #getVideoState()}. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param videoState The new video state of the {@code RemoteConnection}. | 
 |          */ | 
 |         public void onVideoStateChanged(RemoteConnection connection, int videoState) {} | 
 |  | 
 |         /** | 
 |          * Indicates that this {@code RemoteConnection} has been destroyed. No further requests | 
 |          * should be made to the {@code RemoteConnection}, and references to it should be cleared. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          */ | 
 |         public void onDestroyed(RemoteConnection connection) {} | 
 |  | 
 |         /** | 
 |          * Indicates that the {@code RemoteConnection}s with which this {@code RemoteConnection} | 
 |          * may be asked to create a conference has changed. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param conferenceableConnections The {@code RemoteConnection}s with which this | 
 |          *         {@code RemoteConnection} may be asked to create a conference. | 
 |          */ | 
 |         public void onConferenceableConnectionsChanged( | 
 |                 RemoteConnection connection, | 
 |                 List<RemoteConnection> conferenceableConnections) {} | 
 |  | 
 |         /** | 
 |          * Indicates that the {@code VideoProvider} associated with this {@code RemoteConnection} | 
 |          * has changed. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param videoProvider The new {@code VideoProvider} associated with this | 
 |          *         {@code RemoteConnection}. | 
 |          */ | 
 |         public void onVideoProviderChanged( | 
 |                 RemoteConnection connection, VideoProvider videoProvider) {} | 
 |  | 
 |         /** | 
 |          * Indicates that the {@code RemoteConference} that this {@code RemoteConnection} is a part | 
 |          * of has changed. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param conference The {@code RemoteConference} of which this {@code RemoteConnection} is | 
 |          *         a part, which may be {@code null}. | 
 |          */ | 
 |         public void onConferenceChanged( | 
 |                 RemoteConnection connection, | 
 |                 RemoteConference conference) {} | 
 |  | 
 |         /** | 
 |          * Handles changes to the {@code RemoteConnection} extras. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param extras The extras containing other information associated with the connection. | 
 |          */ | 
 |         public void onExtrasChanged(RemoteConnection connection, @Nullable Bundle extras) {} | 
 |  | 
 |         /** | 
 |          * Handles a connection event propagated to this {@link RemoteConnection}. | 
 |          * <p> | 
 |          * Connection events originate from {@link Connection#sendConnectionEvent(String, Bundle)}. | 
 |          * | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param event The connection event. | 
 |          * @param extras Extras associated with the event. | 
 |          */ | 
 |         public void onConnectionEvent(RemoteConnection connection, String event, Bundle extras) {} | 
 |  | 
 |         /** | 
 |          * Indicates that a RTT session was successfully established on this | 
 |          * {@link RemoteConnection}. See {@link Connection#sendRttInitiationSuccess()}. | 
 |          * @hide | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          */ | 
 |         public void onRttInitiationSuccess(RemoteConnection connection) {} | 
 |  | 
 |         /** | 
 |          * Indicates that a RTT session failed to be established on this | 
 |          * {@link RemoteConnection}. See {@link Connection#sendRttInitiationFailure()}. | 
 |          * @hide | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          * @param reason One of the reason codes defined in {@link Connection.RttModifyStatus}, | 
 |          *               with the exception of | 
 |          *               {@link Connection.RttModifyStatus#SESSION_MODIFY_REQUEST_SUCCESS}. | 
 |          */ | 
 |         public void onRttInitiationFailure(RemoteConnection connection, int reason) {} | 
 |  | 
 |         /** | 
 |          * Indicates that an established RTT session was terminated remotely on this | 
 |          * {@link RemoteConnection}. See {@link Connection#sendRttSessionRemotelyTerminated()} | 
 |          * @hide | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          */ | 
 |         public void onRttSessionRemotelyTerminated(RemoteConnection connection) {} | 
 |  | 
 |         /** | 
 |          * Indicates that the remote user on this {@link RemoteConnection} has requested an upgrade | 
 |          * to an RTT session. See {@link Connection#sendRemoteRttRequest()} | 
 |          * @hide | 
 |          * @param connection The {@code RemoteConnection} invoking this method. | 
 |          */ | 
 |         public void onRemoteRttRequest(RemoteConnection connection) {} | 
 |     } | 
 |  | 
 |     /** | 
 |      * {@link RemoteConnection.VideoProvider} associated with a {@link RemoteConnection}.  Used to | 
 |      * receive video related events and control the video associated with a | 
 |      * {@link RemoteConnection}. | 
 |      * | 
 |      * @see Connection.VideoProvider | 
 |      */ | 
 |     public static class VideoProvider { | 
 |  | 
 |         /** | 
 |          * Callback class used by the {@link RemoteConnection.VideoProvider} to relay events from | 
 |          * the {@link Connection.VideoProvider}. | 
 |          */ | 
 |         public abstract static class Callback { | 
 |             /** | 
 |              * Reports a session modification request received from the | 
 |              * {@link Connection.VideoProvider} associated with a {@link RemoteConnection}. | 
 |              * | 
 |              * @param videoProvider The {@link RemoteConnection.VideoProvider} invoking this method. | 
 |              * @param videoProfile The requested video call profile. | 
 |              * @see InCallService.VideoCall.Callback#onSessionModifyRequestReceived(VideoProfile) | 
 |              * @see Connection.VideoProvider#receiveSessionModifyRequest(VideoProfile) | 
 |              */ | 
 |             public void onSessionModifyRequestReceived( | 
 |                     VideoProvider videoProvider, | 
 |                     VideoProfile videoProfile) {} | 
 |  | 
 |             /** | 
 |              * Reports a session modification response received from the | 
 |              * {@link Connection.VideoProvider} associated with a {@link RemoteConnection}. | 
 |              * | 
 |              * @param videoProvider The {@link RemoteConnection.VideoProvider} invoking this method. | 
 |              * @param status Status of the session modify request. | 
 |              * @param requestedProfile The original request which was sent to the peer device. | 
 |              * @param responseProfile The actual profile changes made by the peer device. | 
 |              * @see InCallService.VideoCall.Callback#onSessionModifyResponseReceived(int, | 
 |              *      VideoProfile, VideoProfile) | 
 |              * @see Connection.VideoProvider#receiveSessionModifyResponse(int, VideoProfile, | 
 |              *      VideoProfile) | 
 |              */ | 
 |             public void onSessionModifyResponseReceived( | 
 |                     VideoProvider videoProvider, | 
 |                     int status, | 
 |                     VideoProfile requestedProfile, | 
 |                     VideoProfile responseProfile) {} | 
 |  | 
 |             /** | 
 |              * Reports a call session event received from the {@link Connection.VideoProvider} | 
 |              * associated with a {@link RemoteConnection}. | 
 |              * | 
 |              * @param videoProvider The {@link RemoteConnection.VideoProvider} invoking this method. | 
 |              * @param event The event. | 
 |              * @see InCallService.VideoCall.Callback#onCallSessionEvent(int) | 
 |              * @see Connection.VideoProvider#handleCallSessionEvent(int) | 
 |              */ | 
 |             public void onCallSessionEvent(VideoProvider videoProvider, int event) {} | 
 |  | 
 |             /** | 
 |              * Reports a change in the peer video dimensions received from the | 
 |              * {@link Connection.VideoProvider} associated with a {@link RemoteConnection}. | 
 |              * | 
 |              * @param videoProvider The {@link RemoteConnection.VideoProvider} invoking this method. | 
 |              * @param width  The updated peer video width. | 
 |              * @param height The updated peer video height. | 
 |              * @see InCallService.VideoCall.Callback#onPeerDimensionsChanged(int, int) | 
 |              * @see Connection.VideoProvider#changePeerDimensions(int, int) | 
 |              */ | 
 |             public void onPeerDimensionsChanged(VideoProvider videoProvider, int width, | 
 |                     int height) {} | 
 |  | 
 |             /** | 
 |              * Reports a change in the data usage (in bytes) received from the | 
 |              * {@link Connection.VideoProvider} associated with a {@link RemoteConnection}. | 
 |              * | 
 |              * @param videoProvider The {@link RemoteConnection.VideoProvider} invoking this method. | 
 |              * @param dataUsage The updated data usage (in bytes). | 
 |              * @see InCallService.VideoCall.Callback#onCallDataUsageChanged(long) | 
 |              * @see Connection.VideoProvider#setCallDataUsage(long) | 
 |              */ | 
 |             public void onCallDataUsageChanged(VideoProvider videoProvider, long dataUsage) {} | 
 |  | 
 |             /** | 
 |              * Reports a change in the capabilities of the current camera, received from the | 
 |              * {@link Connection.VideoProvider} associated with a {@link RemoteConnection}. | 
 |              * | 
 |              * @param videoProvider The {@link RemoteConnection.VideoProvider} invoking this method. | 
 |              * @param cameraCapabilities The changed camera capabilities. | 
 |              * @see InCallService.VideoCall.Callback#onCameraCapabilitiesChanged( | 
 |              *      VideoProfile.CameraCapabilities) | 
 |              * @see Connection.VideoProvider#changeCameraCapabilities( | 
 |              *      VideoProfile.CameraCapabilities) | 
 |              */ | 
 |             public void onCameraCapabilitiesChanged( | 
 |                     VideoProvider videoProvider, | 
 |                     VideoProfile.CameraCapabilities cameraCapabilities) {} | 
 |  | 
 |             /** | 
 |              * Reports a change in the video quality received from the | 
 |              * {@link Connection.VideoProvider} associated with a {@link RemoteConnection}. | 
 |              * | 
 |              * @param videoProvider The {@link RemoteConnection.VideoProvider} invoking this method. | 
 |              * @param videoQuality  The updated peer video quality. | 
 |              * @see InCallService.VideoCall.Callback#onVideoQualityChanged(int) | 
 |              * @see Connection.VideoProvider#changeVideoQuality(int) | 
 |              */ | 
 |             public void onVideoQualityChanged(VideoProvider videoProvider, int videoQuality) {} | 
 |         } | 
 |  | 
 |         private final IVideoCallback mVideoCallbackDelegate = new IVideoCallback() { | 
 |             @Override | 
 |             public void receiveSessionModifyRequest(VideoProfile videoProfile) { | 
 |                 for (Callback l : mCallbacks) { | 
 |                     l.onSessionModifyRequestReceived(VideoProvider.this, videoProfile); | 
 |                 } | 
 |             } | 
 |  | 
 |             @Override | 
 |             public void receiveSessionModifyResponse(int status, VideoProfile requestedProfile, | 
 |                     VideoProfile responseProfile) { | 
 |                 for (Callback l : mCallbacks) { | 
 |                     l.onSessionModifyResponseReceived( | 
 |                             VideoProvider.this, | 
 |                             status, | 
 |                             requestedProfile, | 
 |                             responseProfile); | 
 |                 } | 
 |             } | 
 |  | 
 |             @Override | 
 |             public void handleCallSessionEvent(int event) { | 
 |                 for (Callback l : mCallbacks) { | 
 |                     l.onCallSessionEvent(VideoProvider.this, event); | 
 |                 } | 
 |             } | 
 |  | 
 |             @Override | 
 |             public void changePeerDimensions(int width, int height) { | 
 |                 for (Callback l : mCallbacks) { | 
 |                     l.onPeerDimensionsChanged(VideoProvider.this, width, height); | 
 |                 } | 
 |             } | 
 |  | 
 |             @Override | 
 |             public void changeCallDataUsage(long dataUsage) { | 
 |                 for (Callback l : mCallbacks) { | 
 |                     l.onCallDataUsageChanged(VideoProvider.this, dataUsage); | 
 |                 } | 
 |             } | 
 |  | 
 |             @Override | 
 |             public void changeCameraCapabilities( | 
 |                     VideoProfile.CameraCapabilities cameraCapabilities) { | 
 |                 for (Callback l : mCallbacks) { | 
 |                     l.onCameraCapabilitiesChanged(VideoProvider.this, cameraCapabilities); | 
 |                 } | 
 |             } | 
 |  | 
 |             @Override | 
 |             public void changeVideoQuality(int videoQuality) { | 
 |                 for (Callback l : mCallbacks) { | 
 |                     l.onVideoQualityChanged(VideoProvider.this, videoQuality); | 
 |                 } | 
 |             } | 
 |  | 
 |             @Override | 
 |             public IBinder asBinder() { | 
 |                 return null; | 
 |             } | 
 |         }; | 
 |  | 
 |         private final VideoCallbackServant mVideoCallbackServant = | 
 |                 new VideoCallbackServant(mVideoCallbackDelegate); | 
 |  | 
 |         private final IVideoProvider mVideoProviderBinder; | 
 |  | 
 |         private final String mCallingPackage; | 
 |  | 
 |         private final int mTargetSdkVersion; | 
 |  | 
 |         /** | 
 |          * ConcurrentHashMap constructor params: 8 is initial table size, 0.9f is | 
 |          * load factor before resizing, 1 means we only expect a single thread to | 
 |          * access the map so make only a single shard | 
 |          */ | 
 |         private final Set<Callback> mCallbacks = Collections.newSetFromMap( | 
 |                 new ConcurrentHashMap<Callback, Boolean>(8, 0.9f, 1)); | 
 |  | 
 |         VideoProvider(IVideoProvider videoProviderBinder, String callingPackage, | 
 |                       int targetSdkVersion) { | 
 |  | 
 |             mVideoProviderBinder = videoProviderBinder; | 
 |             mCallingPackage = callingPackage; | 
 |             mTargetSdkVersion = targetSdkVersion; | 
 |             try { | 
 |                 mVideoProviderBinder.addVideoCallback(mVideoCallbackServant.getStub().asBinder()); | 
 |             } catch (RemoteException e) { | 
 |             } | 
 |         } | 
 |  | 
 |         /** | 
 |          * Registers a callback to receive commands and state changes for video calls. | 
 |          * | 
 |          * @param l The video call callback. | 
 |          */ | 
 |         public void registerCallback(Callback l) { | 
 |             mCallbacks.add(l); | 
 |         } | 
 |  | 
 |         /** | 
 |          * Clears the video call callback set via {@link #registerCallback}. | 
 |          * | 
 |          * @param l The video call callback to clear. | 
 |          */ | 
 |         public void unregisterCallback(Callback l) { | 
 |             mCallbacks.remove(l); | 
 |         } | 
 |  | 
 |         /** | 
 |          * Sets the camera to be used for the outgoing video for the | 
 |          * {@link RemoteConnection.VideoProvider}. | 
 |          * | 
 |          * @param cameraId The id of the camera (use ids as reported by | 
 |          * {@link CameraManager#getCameraIdList()}). | 
 |          * @see Connection.VideoProvider#onSetCamera(String) | 
 |          */ | 
 |         public void setCamera(String cameraId) { | 
 |             try { | 
 |                 mVideoProviderBinder.setCamera(cameraId, mCallingPackage, mTargetSdkVersion); | 
 |             } catch (RemoteException e) { | 
 |             } | 
 |         } | 
 |  | 
 |         /** | 
 |          * Sets the surface to be used for displaying a preview of what the user's camera is | 
 |          * currently capturing for the {@link RemoteConnection.VideoProvider}. | 
 |          * | 
 |          * @param surface The {@link Surface}. | 
 |          * @see Connection.VideoProvider#onSetPreviewSurface(Surface) | 
 |          */ | 
 |         public void setPreviewSurface(Surface surface) { | 
 |             try { | 
 |                 mVideoProviderBinder.setPreviewSurface(surface); | 
 |             } catch (RemoteException e) { | 
 |             } | 
 |         } | 
 |  | 
 |         /** | 
 |          * Sets the surface to be used for displaying the video received from the remote device for | 
 |          * the {@link RemoteConnection.VideoProvider}. | 
 |          * | 
 |          * @param surface The {@link Surface}. | 
 |          * @see Connection.VideoProvider#onSetDisplaySurface(Surface) | 
 |          */ | 
 |         public void setDisplaySurface(Surface surface) { | 
 |             try { | 
 |                 mVideoProviderBinder.setDisplaySurface(surface); | 
 |             } catch (RemoteException e) { | 
 |             } | 
 |         } | 
 |  | 
 |         /** | 
 |          * Sets the device orientation, in degrees, for the {@link RemoteConnection.VideoProvider}. | 
 |          * Assumes that a standard portrait orientation of the device is 0 degrees. | 
 |          * | 
 |          * @param rotation The device orientation, in degrees. | 
 |          * @see Connection.VideoProvider#onSetDeviceOrientation(int) | 
 |          */ | 
 |         public void setDeviceOrientation(int rotation) { | 
 |             try { | 
 |                 mVideoProviderBinder.setDeviceOrientation(rotation); | 
 |             } catch (RemoteException e) { | 
 |             } | 
 |         } | 
 |  | 
 |         /** | 
 |          * Sets camera zoom ratio for the {@link RemoteConnection.VideoProvider}. | 
 |          * | 
 |          * @param value The camera zoom ratio. | 
 |          * @see Connection.VideoProvider#onSetZoom(float) | 
 |          */ | 
 |         public void setZoom(float value) { | 
 |             try { | 
 |                 mVideoProviderBinder.setZoom(value); | 
 |             } catch (RemoteException e) { | 
 |             } | 
 |         } | 
 |  | 
 |         /** | 
 |          * Issues a request to modify the properties of the current video session for the | 
 |          * {@link RemoteConnection.VideoProvider}. | 
 |          * | 
 |          * @param fromProfile The video profile prior to the request. | 
 |          * @param toProfile The video profile with the requested changes made. | 
 |          * @see Connection.VideoProvider#onSendSessionModifyRequest(VideoProfile, VideoProfile) | 
 |          */ | 
 |         public void sendSessionModifyRequest(VideoProfile fromProfile, VideoProfile toProfile) { | 
 |             try { | 
 |                 mVideoProviderBinder.sendSessionModifyRequest(fromProfile, toProfile); | 
 |             } catch (RemoteException e) { | 
 |             } | 
 |         } | 
 |  | 
 |         /** | 
 |          * Provides a response to a request to change the current call video session | 
 |          * properties for the {@link RemoteConnection.VideoProvider}. | 
 |          * | 
 |          * @param responseProfile The response call video properties. | 
 |          * @see Connection.VideoProvider#onSendSessionModifyResponse(VideoProfile) | 
 |          */ | 
 |         public void sendSessionModifyResponse(VideoProfile responseProfile) { | 
 |             try { | 
 |                 mVideoProviderBinder.sendSessionModifyResponse(responseProfile); | 
 |             } catch (RemoteException e) { | 
 |             } | 
 |         } | 
 |  | 
 |         /** | 
 |          * Issues a request to retrieve the capabilities of the current camera for the | 
 |          * {@link RemoteConnection.VideoProvider}. | 
 |          * | 
 |          * @see Connection.VideoProvider#onRequestCameraCapabilities() | 
 |          */ | 
 |         public void requestCameraCapabilities() { | 
 |             try { | 
 |                 mVideoProviderBinder.requestCameraCapabilities(); | 
 |             } catch (RemoteException e) { | 
 |             } | 
 |         } | 
 |  | 
 |         /** | 
 |          * Issues a request to retrieve the data usage (in bytes) of the video portion of the | 
 |          * {@link RemoteConnection} for the {@link RemoteConnection.VideoProvider}. | 
 |          * | 
 |          * @see Connection.VideoProvider#onRequestConnectionDataUsage() | 
 |          */ | 
 |         public void requestCallDataUsage() { | 
 |             try { | 
 |                 mVideoProviderBinder.requestCallDataUsage(); | 
 |             } catch (RemoteException e) { | 
 |             } | 
 |         } | 
 |  | 
 |         /** | 
 |          * Sets the {@link Uri} of an image to be displayed to the peer device when the video signal | 
 |          * is paused, for the {@link RemoteConnection.VideoProvider}. | 
 |          * | 
 |          * @see Connection.VideoProvider#onSetPauseImage(Uri) | 
 |          */ | 
 |         public void setPauseImage(Uri uri) { | 
 |             try { | 
 |                 mVideoProviderBinder.setPauseImage(uri); | 
 |             } catch (RemoteException e) { | 
 |             } | 
 |         } | 
 |     } | 
 |  | 
 |     private IConnectionService mConnectionService; | 
 |     private final String mConnectionId; | 
 |     /** | 
 |      * ConcurrentHashMap constructor params: 8 is initial table size, 0.9f is | 
 |      * load factor before resizing, 1 means we only expect a single thread to | 
 |      * access the map so make only a single shard | 
 |      */ | 
 |     private final Set<CallbackRecord> mCallbackRecords = Collections.newSetFromMap( | 
 |             new ConcurrentHashMap<CallbackRecord, Boolean>(8, 0.9f, 1)); | 
 |     private final List<RemoteConnection> mConferenceableConnections = new ArrayList<>(); | 
 |     private final List<RemoteConnection> mUnmodifiableconferenceableConnections = | 
 |             Collections.unmodifiableList(mConferenceableConnections); | 
 |  | 
 |     private int mState = Connection.STATE_NEW; | 
 |     private DisconnectCause mDisconnectCause; | 
 |     private boolean mRingbackRequested; | 
 |     private boolean mConnected; | 
 |     private int mConnectionCapabilities; | 
 |     private int mConnectionProperties; | 
 |     private int mVideoState; | 
 |     private VideoProvider mVideoProvider; | 
 |     private boolean mIsVoipAudioMode; | 
 |     private StatusHints mStatusHints; | 
 |     private Uri mAddress; | 
 |     private int mAddressPresentation; | 
 |     private String mCallerDisplayName; | 
 |     private int mCallerDisplayNamePresentation; | 
 |     private RemoteConference mConference; | 
 |     private Bundle mExtras; | 
 |     private String mCallingPackageAbbreviation; | 
 |  | 
 |     /** | 
 |      * @hide | 
 |      */ | 
 |     RemoteConnection( | 
 |             String id, | 
 |             IConnectionService connectionService, | 
 |             ConnectionRequest request) { | 
 |         mConnectionId = id; | 
 |         mConnectionService = connectionService; | 
 |         mConnected = true; | 
 |         mState = Connection.STATE_INITIALIZING; | 
 |         if (request != null && request.getExtras() != null | 
 |                 && request.getExtras().containsKey( | 
 |                         Connection.EXTRA_REMOTE_CONNECTION_ORIGINATING_PACKAGE_NAME)) { | 
 |             String callingPackage = request.getExtras().getString( | 
 |                     Connection.EXTRA_REMOTE_CONNECTION_ORIGINATING_PACKAGE_NAME); | 
 |             mCallingPackageAbbreviation = Log.getPackageAbbreviation(callingPackage); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * @hide | 
 |      */ | 
 |     RemoteConnection(String callId, IConnectionService connectionService, | 
 |             ParcelableConnection connection, String callingPackage, int targetSdkVersion) { | 
 |         mConnectionId = callId; | 
 |         mConnectionService = connectionService; | 
 |         mConnected = true; | 
 |         mState = connection.getState(); | 
 |         mDisconnectCause = connection.getDisconnectCause(); | 
 |         mRingbackRequested = connection.isRingbackRequested(); | 
 |         mConnectionCapabilities = connection.getConnectionCapabilities(); | 
 |         mConnectionProperties = connection.getConnectionProperties(); | 
 |         mVideoState = connection.getVideoState(); | 
 |         IVideoProvider videoProvider = connection.getVideoProvider(); | 
 |         if (videoProvider != null) { | 
 |             mVideoProvider = new RemoteConnection.VideoProvider(videoProvider, callingPackage, | 
 |                     targetSdkVersion); | 
 |         } else { | 
 |             mVideoProvider = null; | 
 |         } | 
 |         mIsVoipAudioMode = connection.getIsVoipAudioMode(); | 
 |         mStatusHints = connection.getStatusHints(); | 
 |         mAddress = connection.getHandle(); | 
 |         mAddressPresentation = connection.getHandlePresentation(); | 
 |         mCallerDisplayName = connection.getCallerDisplayName(); | 
 |         mCallerDisplayNamePresentation = connection.getCallerDisplayNamePresentation(); | 
 |         mConference = null; | 
 |         putExtras(connection.getExtras()); | 
 |  | 
 |         // Stash the original connection ID as it exists in the source ConnectionService. | 
 |         // Telecom will use this to avoid adding duplicates later. | 
 |         // See comments on Connection.EXTRA_ORIGINAL_CONNECTION_ID for more information. | 
 |         Bundle newExtras = new Bundle(); | 
 |         newExtras.putString(Connection.EXTRA_ORIGINAL_CONNECTION_ID, callId); | 
 |         putExtras(newExtras); | 
 |         mCallingPackageAbbreviation = Log.getPackageAbbreviation(callingPackage); | 
 |     } | 
 |  | 
 |     /** | 
 |      * Create a RemoteConnection which is used for failed connections. Note that using it for any | 
 |      * "real" purpose will almost certainly fail. Callers should note the failure and act | 
 |      * accordingly (moving on to another RemoteConnection, for example) | 
 |      * | 
 |      * @param disconnectCause The reason for the failed connection. | 
 |      * @hide | 
 |      */ | 
 |     RemoteConnection(DisconnectCause disconnectCause) { | 
 |         mConnectionId = "NULL"; | 
 |         mConnected = false; | 
 |         mState = Connection.STATE_DISCONNECTED; | 
 |         mDisconnectCause = disconnectCause; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Adds a callback to this {@code RemoteConnection}. | 
 |      * | 
 |      * @param callback A {@code Callback}. | 
 |      */ | 
 |     public void registerCallback(Callback callback) { | 
 |         registerCallback(callback, new Handler()); | 
 |     } | 
 |  | 
 |     /** | 
 |      * Adds a callback to this {@code RemoteConnection}. | 
 |      * | 
 |      * @param callback A {@code Callback}. | 
 |      * @param handler A {@code Handler} which command and status changes will be delivered to. | 
 |      */ | 
 |     public void registerCallback(Callback callback, Handler handler) { | 
 |         unregisterCallback(callback); | 
 |         if (callback != null && handler != null) { | 
 |             mCallbackRecords.add(new CallbackRecord(callback, handler)); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Removes a callback from this {@code RemoteConnection}. | 
 |      * | 
 |      * @param callback A {@code Callback}. | 
 |      */ | 
 |     public void unregisterCallback(Callback callback) { | 
 |         if (callback != null) { | 
 |             for (CallbackRecord record : mCallbackRecords) { | 
 |                 if (record.getCallback() == callback) { | 
 |                     mCallbackRecords.remove(record); | 
 |                     break; | 
 |                 } | 
 |             } | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Obtains the state of this {@code RemoteConnection}. | 
 |      * | 
 |      * @return A state value, chosen from the {@code STATE_*} constants. | 
 |      */ | 
 |     public int getState() { | 
 |         return mState; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Obtains the reason why this {@code RemoteConnection} may have been disconnected. | 
 |      * | 
 |      * @return For a {@link Connection#STATE_DISCONNECTED} {@code RemoteConnection}, the | 
 |      *         disconnect cause expressed as a code chosen from among those declared in | 
 |      *         {@link DisconnectCause}. | 
 |      */ | 
 |     public DisconnectCause getDisconnectCause() { | 
 |         return mDisconnectCause; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Obtains the capabilities of this {@code RemoteConnection}. | 
 |      * | 
 |      * @return A bitmask of the capabilities of the {@code RemoteConnection}, as defined in | 
 |      *         the {@code CAPABILITY_*} constants in class {@link Connection}. | 
 |      */ | 
 |     public int getConnectionCapabilities() { | 
 |         return mConnectionCapabilities; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Obtains the properties of this {@code RemoteConnection}. | 
 |      * | 
 |      * @return A bitmask of the properties of the {@code RemoteConnection}, as defined in the | 
 |      *         {@code PROPERTY_*} constants in class {@link Connection}. | 
 |      */ | 
 |     public int getConnectionProperties() { | 
 |         return mConnectionProperties; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Determines if the audio mode of this {@code RemoteConnection} is VOIP. | 
 |      * | 
 |      * @return {@code true} if the {@code RemoteConnection}'s current audio mode is VOIP. | 
 |      */ | 
 |     public boolean isVoipAudioMode() { | 
 |         return mIsVoipAudioMode; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Obtains status hints pertaining to this {@code RemoteConnection}. | 
 |      * | 
 |      * @return The current {@link StatusHints} of this {@code RemoteConnection}, | 
 |      *         or {@code null} if none have been set. | 
 |      */ | 
 |     public StatusHints getStatusHints() { | 
 |         return mStatusHints; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Obtains the address of this {@code RemoteConnection}. | 
 |      * | 
 |      * @return The address (e.g., phone number) to which the {@code RemoteConnection} | 
 |      *         is currently connected. | 
 |      */ | 
 |     public Uri getAddress() { | 
 |         return mAddress; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Obtains the presentation requirements for the address of this {@code RemoteConnection}. | 
 |      * | 
 |      * @return The presentation requirements for the address. See | 
 |      *         {@link TelecomManager} for valid values. | 
 |      */ | 
 |     public int getAddressPresentation() { | 
 |         return mAddressPresentation; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Obtains the display name for this {@code RemoteConnection}'s caller. | 
 |      * | 
 |      * @return The display name for the caller. | 
 |      */ | 
 |     public CharSequence getCallerDisplayName() { | 
 |         return mCallerDisplayName; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Obtains the presentation requirements for this {@code RemoteConnection}'s | 
 |      * caller's display name. | 
 |      * | 
 |      * @return The presentation requirements for the caller display name. See | 
 |      *         {@link TelecomManager} for valid values. | 
 |      */ | 
 |     public int getCallerDisplayNamePresentation() { | 
 |         return mCallerDisplayNamePresentation; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Obtains the video state of this {@code RemoteConnection}. | 
 |      * | 
 |      * @return The video state of the {@code RemoteConnection}. See {@link VideoProfile}. | 
 |      */ | 
 |     public int getVideoState() { | 
 |         return mVideoState; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Obtains the video provider of this {@code RemoteConnection}. | 
 |      * @return The video provider associated with this {@code RemoteConnection}. | 
 |      */ | 
 |     public final VideoProvider getVideoProvider() { | 
 |         return mVideoProvider; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Obtain the extras associated with this {@code RemoteConnection}. | 
 |      * | 
 |      * @return The extras for this connection. | 
 |      */ | 
 |     public final Bundle getExtras() { | 
 |         return mExtras; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Determines whether this {@code RemoteConnection} is requesting ringback. | 
 |      * | 
 |      * @return Whether the {@code RemoteConnection} is requesting that the framework play a | 
 |      *         ringback tone on its behalf. | 
 |      */ | 
 |     public boolean isRingbackRequested() { | 
 |         return mRingbackRequested; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Instructs this {@code RemoteConnection} to abort. | 
 |      */ | 
 |     public void abort() { | 
 |         Log.startSession("RC.a", getActiveOwnerInfo()); | 
 |         try { | 
 |             if (mConnected) { | 
 |                 mConnectionService.abort(mConnectionId, Log.getExternalSession( | 
 |                         mCallingPackageAbbreviation)); | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |         } finally { | 
 |             Log.endSession(); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Instructs this {@link Connection#STATE_RINGING} {@code RemoteConnection} to answer. | 
 |      */ | 
 |     public void answer() { | 
 |         Log.startSession("RC.an", getActiveOwnerInfo()); | 
 |         try { | 
 |             if (mConnected) { | 
 |                mConnectionService.answer(mConnectionId, Log.getExternalSession( | 
 |                        mCallingPackageAbbreviation)); | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |         } finally { | 
 |             Log.endSession(); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Instructs this {@link Connection#STATE_RINGING} {@code RemoteConnection} to answer. | 
 |      * @param videoState The video state in which to answer the call. | 
 |      * @hide | 
 |      */ | 
 |     public void answer(int videoState) { | 
 |         Log.startSession("RC.an2", getActiveOwnerInfo()); | 
 |         try { | 
 |             if (mConnected) { | 
 |                 mConnectionService.answerVideo(mConnectionId, videoState, | 
 |                         Log.getExternalSession(mCallingPackageAbbreviation)); | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |         } finally { | 
 |             Log.endSession(); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Instructs this {@link Connection#STATE_RINGING} {@code RemoteConnection} to reject. | 
 |      */ | 
 |     public void reject() { | 
 |         Log.startSession("RC.r", getActiveOwnerInfo()); | 
 |         try { | 
 |             if (mConnected) { | 
 |                 mConnectionService.reject(mConnectionId, Log.getExternalSession( | 
 |                         mCallingPackageAbbreviation)); | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |         } finally { | 
 |             Log.endSession(); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Instructs this {@code RemoteConnection} to go on hold. | 
 |      */ | 
 |     public void hold() { | 
 |         Log.startSession("RC.h", getActiveOwnerInfo()); | 
 |         try { | 
 |             if (mConnected) { | 
 |                 mConnectionService.hold(mConnectionId, Log.getExternalSession( | 
 |                         mCallingPackageAbbreviation)); | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |         } finally { | 
 |             Log.endSession(); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Instructs this {@link Connection#STATE_HOLDING} call to release from hold. | 
 |      */ | 
 |     public void unhold() { | 
 |         Log.startSession("RC.u", getActiveOwnerInfo()); | 
 |         try { | 
 |             if (mConnected) { | 
 |                 mConnectionService.unhold(mConnectionId, Log.getExternalSession( | 
 |                         mCallingPackageAbbreviation)); | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |         } finally { | 
 |             Log.endSession(); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Instructs this {@code RemoteConnection} to disconnect. | 
 |      */ | 
 |     public void disconnect() { | 
 |         Log.startSession("RC.d", getActiveOwnerInfo()); | 
 |         try { | 
 |             if (mConnected) { | 
 |                 mConnectionService.disconnect(mConnectionId, Log.getExternalSession( | 
 |                         mCallingPackageAbbreviation)); | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |         } finally { | 
 |             Log.endSession(); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Instructs this {@code RemoteConnection} to play a dual-tone multi-frequency signaling | 
 |      * (DTMF) tone. | 
 |      * | 
 |      * Any other currently playing DTMF tone in the specified call is immediately stopped. | 
 |      * | 
 |      * @param digit A character representing the DTMF digit for which to play the tone. This | 
 |      *         value must be one of {@code '0'} through {@code '9'}, {@code '*'} or {@code '#'}. | 
 |      */ | 
 |     public void playDtmfTone(char digit) { | 
 |         Log.startSession("RC.pDT", getActiveOwnerInfo()); | 
 |         try { | 
 |             if (mConnected) { | 
 |                 mConnectionService.playDtmfTone(mConnectionId, digit, null /*Session.Info*/); | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |         } finally { | 
 |             Log.endSession(); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Instructs this {@code RemoteConnection} to stop any dual-tone multi-frequency signaling | 
 |      * (DTMF) tone currently playing. | 
 |      * | 
 |      * DTMF tones are played by calling {@link #playDtmfTone(char)}. If no DTMF tone is | 
 |      * currently playing, this method will do nothing. | 
 |      */ | 
 |     public void stopDtmfTone() { | 
 |         Log.startSession("RC.sDT", getActiveOwnerInfo()); | 
 |         try { | 
 |             if (mConnected) { | 
 |                 mConnectionService.stopDtmfTone(mConnectionId, null /*Session.Info*/); | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |         } finally { | 
 |             Log.endSession(); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Instructs this {@code RemoteConnection} to continue playing a post-dial DTMF string. | 
 |      * | 
 |      * A post-dial DTMF string is a string of digits following the first instance of either | 
 |      * {@link TelecomManager#DTMF_CHARACTER_WAIT} or {@link TelecomManager#DTMF_CHARACTER_PAUSE}. | 
 |      * These digits are immediately sent as DTMF tones to the recipient as soon as the | 
 |      * connection is made. | 
 |      * | 
 |      * If the DTMF string contains a {@link TelecomManager#DTMF_CHARACTER_PAUSE} symbol, this | 
 |      * {@code RemoteConnection} will temporarily pause playing the tones for a pre-defined period | 
 |      * of time. | 
 |      * | 
 |      * If the DTMF string contains a {@link TelecomManager#DTMF_CHARACTER_WAIT} symbol, this | 
 |      * {@code RemoteConnection} will pause playing the tones and notify callbacks via | 
 |      * {@link Callback#onPostDialWait(RemoteConnection, String)}. At this point, the in-call app | 
 |      * should display to the user an indication of this state and an affordance to continue | 
 |      * the postdial sequence. When the user decides to continue the postdial sequence, the in-call | 
 |      * app should invoke the {@link #postDialContinue(boolean)} method. | 
 |      * | 
 |      * @param proceed Whether or not to continue with the post-dial sequence. | 
 |      */ | 
 |     public void postDialContinue(boolean proceed) { | 
 |         Log.startSession("RC.pDC", getActiveOwnerInfo()); | 
 |         try { | 
 |             if (mConnected) { | 
 |                 mConnectionService.onPostDialContinue(mConnectionId, proceed, | 
 |                         null /*Session.Info*/); | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |             // bliss | 
 |         } finally { | 
 |             Log.endSession(); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Instructs this {@link RemoteConnection} to pull itself to the local device. | 
 |      * <p> | 
 |      * See {@link Call#pullExternalCall()} for more information. | 
 |      */ | 
 |     public void pullExternalCall() { | 
 |         Log.startSession("RC.pEC", getActiveOwnerInfo()); | 
 |         try { | 
 |             if (mConnected) { | 
 |                 mConnectionService.pullExternalCall(mConnectionId, null /*Session.Info*/); | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |         } finally { | 
 |             Log.endSession(); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Instructs this {@link RemoteConnection} to initiate a conference with a list of | 
 |      * participants. | 
 |      * <p> | 
 |      * | 
 |      * @param participants with which conference call will be formed. | 
 |      */ | 
 |     public void addConferenceParticipants(@NonNull List<Uri> participants) { | 
 |         try { | 
 |             if (mConnected) { | 
 |                 mConnectionService.addConferenceParticipants(mConnectionId, participants, | 
 |                         null /*Session.Info*/); | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Set the audio state of this {@code RemoteConnection}. | 
 |      * | 
 |      * @param state The audio state of this {@code RemoteConnection}. | 
 |      * @hide | 
 |      * @deprecated Use {@link #setCallAudioState(CallAudioState)} instead. | 
 |      */ | 
 |     @SystemApi | 
 |     @Deprecated | 
 |     public void setAudioState(AudioState state) { | 
 |         setCallAudioState(new CallAudioState(state)); | 
 |     } | 
 |  | 
 |     /** | 
 |      * Set the audio state of this {@code RemoteConnection}. | 
 |      * | 
 |      * @param state The audio state of this {@code RemoteConnection}. | 
 |      */ | 
 |     public void setCallAudioState(CallAudioState state) { | 
 |         Log.startSession("RC.sCAS", getActiveOwnerInfo()); | 
 |         try { | 
 |             if (mConnected) { | 
 |                 mConnectionService.onCallAudioStateChanged(mConnectionId, state, | 
 |                         null /*Session.Info*/); | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |         } finally { | 
 |             Log.endSession(); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Notifies this {@link RemoteConnection} that the user has requested an RTT session. | 
 |      * @param rttTextStream The object that should be used to send text to or receive text from | 
 |      *                      the in-call app. | 
 |      * @hide | 
 |      */ | 
 |     public void startRtt(@NonNull Connection.RttTextStream rttTextStream) { | 
 |         Log.startSession("RC.sR", getActiveOwnerInfo()); | 
 |         try { | 
 |             if (mConnected) { | 
 |                 mConnectionService.startRtt(mConnectionId, rttTextStream.getFdFromInCall(), | 
 |                         rttTextStream.getFdToInCall(), null /*Session.Info*/); | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |         } finally { | 
 |             Log.endSession(); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Notifies this {@link RemoteConnection} that it should terminate any existing RTT | 
 |      * session. No response to Telecom is needed for this method. | 
 |      * @hide | 
 |      */ | 
 |     public void stopRtt() { | 
 |         Log.startSession("RC.stR", getActiveOwnerInfo()); | 
 |         try { | 
 |             if (mConnected) { | 
 |                 mConnectionService.stopRtt(mConnectionId, null /*Session.Info*/); | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |         } finally { | 
 |             Log.endSession(); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Notifies this {@link RemoteConnection} that call filtering has completed, as well as | 
 |      * the results of a contacts lookup for the remote party. | 
 |      * | 
 |      * @param completionInfo Info provided by Telecom on the results of call filtering. | 
 |      * @hide | 
 |      */ | 
 |     @SystemApi | 
 |     @RequiresPermission(Manifest.permission.READ_CONTACTS) | 
 |     public void onCallFilteringCompleted( | 
 |             @NonNull Connection.CallFilteringCompletionInfo completionInfo) { | 
 |         Log.startSession("RC.oCFC", getActiveOwnerInfo()); | 
 |         try { | 
 |             if (mConnected) { | 
 |                 mConnectionService.onCallFilteringCompleted(mConnectionId, completionInfo, | 
 |                         null /*Session.Info*/); | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |         } finally { | 
 |             Log.endSession(); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Notifies this {@link RemoteConnection} of a response to a previous remotely-initiated RTT | 
 |      * upgrade request sent via {@link Connection#sendRemoteRttRequest}. | 
 |      * Acceptance of the request is indicated by the supplied {@link RttTextStream} being non-null, | 
 |      * and rejection is indicated by {@code rttTextStream} being {@code null} | 
 |      * @hide | 
 |      * @param rttTextStream The object that should be used to send text to or receive text from | 
 |      *                      the in-call app. | 
 |      */ | 
 |     public void sendRttUpgradeResponse(@Nullable Connection.RttTextStream rttTextStream) { | 
 |         Log.startSession("RC.sRUR", getActiveOwnerInfo()); | 
 |         try { | 
 |             if (mConnected) { | 
 |                 if (rttTextStream == null) { | 
 |                     mConnectionService.respondToRttUpgradeRequest(mConnectionId, | 
 |                             null, null, null /*Session.Info*/); | 
 |                 } else { | 
 |                     mConnectionService.respondToRttUpgradeRequest(mConnectionId, | 
 |                             rttTextStream.getFdFromInCall(), rttTextStream.getFdToInCall(), | 
 |                             null /*Session.Info*/); | 
 |                 } | 
 |             } | 
 |         } catch (RemoteException ignored) { | 
 |         } finally { | 
 |             Log.endSession(); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * Obtain the {@code RemoteConnection}s with which this {@code RemoteConnection} may be | 
 |      * successfully asked to create a conference with. | 
 |      * | 
 |      * @return The {@code RemoteConnection}s with which this {@code RemoteConnection} may be | 
 |      *         merged into a {@link RemoteConference}. | 
 |      */ | 
 |     public List<RemoteConnection> getConferenceableConnections() { | 
 |         return mUnmodifiableconferenceableConnections; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Obtain the {@code RemoteConference} that this {@code RemoteConnection} may be a part | 
 |      * of, or {@code null} if there is no such {@code RemoteConference}. | 
 |      * | 
 |      * @return A {@code RemoteConference} or {@code null}; | 
 |      */ | 
 |     public RemoteConference getConference() { | 
 |         return mConference; | 
 |     } | 
 |  | 
 |     /** | 
 |      * Get the owner info for the currently active session.  We want to make sure that any owner | 
 |      * info from the original call into the connection manager gets retained so that the full | 
 |      * context of the calls can be traced down to Telephony. | 
 |      * Example: Telecom will provide owner info in it's external session info that indicates | 
 |      * 'cast' as the calling owner. | 
 |      * @return The active owner | 
 |      */ | 
 |     private String getActiveOwnerInfo() { | 
 |         Session.Info info = Log.getExternalSession(); | 
 |         if (info == null) { | 
 |             return null; | 
 |         } | 
 |         return info.ownerInfo; | 
 |     } | 
 |  | 
 |     /** {@hide} */ | 
 |     String getId() { | 
 |         return mConnectionId; | 
 |     } | 
 |  | 
 |     /** {@hide} */ | 
 |     IConnectionService getConnectionService() { | 
 |         return mConnectionService; | 
 |     } | 
 |  | 
 |     /** | 
 |      * @hide | 
 |      */ | 
 |     void setState(final int state) { | 
 |         if (mState != state) { | 
 |             mState = state; | 
 |             for (CallbackRecord record: mCallbackRecords) { | 
 |                 final RemoteConnection connection = this; | 
 |                 final Callback callback = record.getCallback(); | 
 |                 record.getHandler().post(new Runnable() { | 
 |                     @Override | 
 |                     public void run() { | 
 |                         callback.onStateChanged(connection, state); | 
 |                     } | 
 |                 }); | 
 |             } | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * @hide | 
 |      */ | 
 |     void setDisconnected(final DisconnectCause disconnectCause) { | 
 |         if (mState != Connection.STATE_DISCONNECTED) { | 
 |             mState = Connection.STATE_DISCONNECTED; | 
 |             mDisconnectCause = disconnectCause; | 
 |  | 
 |             for (CallbackRecord record : mCallbackRecords) { | 
 |                 final RemoteConnection connection = this; | 
 |                 final Callback callback = record.getCallback(); | 
 |                 record.getHandler().post(new Runnable() { | 
 |                     @Override | 
 |                     public void run() { | 
 |                         callback.onDisconnected(connection, disconnectCause); | 
 |                     } | 
 |                 }); | 
 |             } | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * @hide | 
 |      */ | 
 |     void setRingbackRequested(final boolean ringback) { | 
 |         if (mRingbackRequested != ringback) { | 
 |             mRingbackRequested = ringback; | 
 |             for (CallbackRecord record : mCallbackRecords) { | 
 |                 final RemoteConnection connection = this; | 
 |                 final Callback callback = record.getCallback(); | 
 |                 record.getHandler().post(new Runnable() { | 
 |                     @Override | 
 |                     public void run() { | 
 |                         callback.onRingbackRequested(connection, ringback); | 
 |                     } | 
 |                 }); | 
 |             } | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * @hide | 
 |      */ | 
 |     void setConnectionCapabilities(final int connectionCapabilities) { | 
 |         mConnectionCapabilities = connectionCapabilities; | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post(new Runnable() { | 
 |                 @Override | 
 |                 public void run() { | 
 |                     callback.onConnectionCapabilitiesChanged(connection, connectionCapabilities); | 
 |                 } | 
 |             }); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * @hide | 
 |      */ | 
 |     void setConnectionProperties(final int connectionProperties) { | 
 |         mConnectionProperties = connectionProperties; | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post(new Runnable() { | 
 |                 @Override | 
 |                 public void run() { | 
 |                     callback.onConnectionPropertiesChanged(connection, connectionProperties); | 
 |                 } | 
 |             }); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * @hide | 
 |      */ | 
 |     void setDestroyed() { | 
 |         if (!mCallbackRecords.isEmpty()) { | 
 |             // Make sure that the callbacks are notified that the call is destroyed first. | 
 |             if (mState != Connection.STATE_DISCONNECTED) { | 
 |                 setDisconnected( | 
 |                         new DisconnectCause(DisconnectCause.ERROR, "Connection destroyed.")); | 
 |             } | 
 |  | 
 |             for (CallbackRecord record : mCallbackRecords) { | 
 |                 final RemoteConnection connection = this; | 
 |                 final Callback callback = record.getCallback(); | 
 |                 record.getHandler().post(new Runnable() { | 
 |                     @Override | 
 |                     public void run() { | 
 |                         callback.onDestroyed(connection); | 
 |                     } | 
 |                 }); | 
 |             } | 
 |             mCallbackRecords.clear(); | 
 |  | 
 |             mConnected = false; | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * @hide | 
 |      */ | 
 |     void setPostDialWait(final String remainingDigits) { | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post(new Runnable() { | 
 |                 @Override | 
 |                 public void run() { | 
 |                     callback.onPostDialWait(connection, remainingDigits); | 
 |                 } | 
 |             }); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * @hide | 
 |      */ | 
 |     void onPostDialChar(final char nextChar) { | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post(new Runnable() { | 
 |                 @Override | 
 |                 public void run() { | 
 |                     callback.onPostDialChar(connection, nextChar); | 
 |                 } | 
 |             }); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * @hide | 
 |      */ | 
 |     void setVideoState(final int videoState) { | 
 |         mVideoState = videoState; | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post(new Runnable() { | 
 |                 @Override | 
 |                 public void run() { | 
 |                     callback.onVideoStateChanged(connection, videoState); | 
 |                 } | 
 |             }); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |      * @hide | 
 |      */ | 
 |     void setVideoProvider(final VideoProvider videoProvider) { | 
 |         mVideoProvider = videoProvider; | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post(new Runnable() { | 
 |                 @Override | 
 |                 public void run() { | 
 |                     callback.onVideoProviderChanged(connection, videoProvider); | 
 |                 } | 
 |             }); | 
 |         } | 
 |     } | 
 |  | 
 |     /** @hide */ | 
 |     void setIsVoipAudioMode(final boolean isVoip) { | 
 |         mIsVoipAudioMode = isVoip; | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post(new Runnable() { | 
 |                 @Override | 
 |                 public void run() { | 
 |                     callback.onVoipAudioChanged(connection, isVoip); | 
 |                 } | 
 |             }); | 
 |         } | 
 |     } | 
 |  | 
 |     /** @hide */ | 
 |     void setStatusHints(final StatusHints statusHints) { | 
 |         mStatusHints = statusHints; | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post(new Runnable() { | 
 |                 @Override | 
 |                 public void run() { | 
 |                     callback.onStatusHintsChanged(connection, statusHints); | 
 |                 } | 
 |             }); | 
 |         } | 
 |     } | 
 |  | 
 |     /** @hide */ | 
 |     void setAddress(final Uri address, final int presentation) { | 
 |         mAddress = address; | 
 |         mAddressPresentation = presentation; | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post(new Runnable() { | 
 |                 @Override | 
 |                 public void run() { | 
 |                     callback.onAddressChanged(connection, address, presentation); | 
 |                 } | 
 |             }); | 
 |         } | 
 |     } | 
 |  | 
 |     /** @hide */ | 
 |     void setCallerDisplayName(final String callerDisplayName, final int presentation) { | 
 |         mCallerDisplayName = callerDisplayName; | 
 |         mCallerDisplayNamePresentation = presentation; | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post(new Runnable() { | 
 |                 @Override | 
 |                 public void run() { | 
 |                     callback.onCallerDisplayNameChanged( | 
 |                             connection, callerDisplayName, presentation); | 
 |                 } | 
 |             }); | 
 |         } | 
 |     } | 
 |  | 
 |     /** @hide */ | 
 |     void setConferenceableConnections(final List<RemoteConnection> conferenceableConnections) { | 
 |         mConferenceableConnections.clear(); | 
 |         mConferenceableConnections.addAll(conferenceableConnections); | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post(new Runnable() { | 
 |                 @Override | 
 |                 public void run() { | 
 |                     callback.onConferenceableConnectionsChanged( | 
 |                             connection, mUnmodifiableconferenceableConnections); | 
 |                 } | 
 |             }); | 
 |         } | 
 |     } | 
 |  | 
 |     /** @hide */ | 
 |     void setConference(final RemoteConference conference) { | 
 |         if (mConference != conference) { | 
 |             mConference = conference; | 
 |             for (CallbackRecord record : mCallbackRecords) { | 
 |                 final RemoteConnection connection = this; | 
 |                 final Callback callback = record.getCallback(); | 
 |                 record.getHandler().post(new Runnable() { | 
 |                     @Override | 
 |                     public void run() { | 
 |                         callback.onConferenceChanged(connection, conference); | 
 |                     } | 
 |                 }); | 
 |             } | 
 |         } | 
 |     } | 
 |  | 
 |     /** @hide */ | 
 |     void putExtras(final Bundle extras) { | 
 |         if (extras == null) { | 
 |             return; | 
 |         } | 
 |         if (mExtras == null) { | 
 |             mExtras = new Bundle(); | 
 |         } | 
 |         try { | 
 |             mExtras.putAll(extras); | 
 |         } catch (BadParcelableException bpe) { | 
 |             Log.w(this, "putExtras: could not unmarshal extras; exception = " + bpe); | 
 |         } | 
 |  | 
 |         notifyExtrasChanged(); | 
 |     } | 
 |  | 
 |     /** @hide */ | 
 |     void removeExtras(List<String> keys) { | 
 |         if (mExtras == null || keys == null || keys.isEmpty()) { | 
 |             return; | 
 |         } | 
 |         for (String key : keys) { | 
 |             mExtras.remove(key); | 
 |         } | 
 |  | 
 |         notifyExtrasChanged(); | 
 |     } | 
 |  | 
 |     private void notifyExtrasChanged() { | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post(new Runnable() { | 
 |                 @Override | 
 |                 public void run() { | 
 |                     callback.onExtrasChanged(connection, mExtras); | 
 |                 } | 
 |             }); | 
 |         } | 
 |     } | 
 |  | 
 |     /** @hide */ | 
 |     void onConnectionEvent(final String event, final Bundle extras) { | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post(new Runnable() { | 
 |                 @Override | 
 |                 public void run() { | 
 |                     callback.onConnectionEvent(connection, event, extras); | 
 |                 } | 
 |             }); | 
 |         } | 
 |     } | 
 |  | 
 |     /** @hide */ | 
 |     void onRttInitiationSuccess() { | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post( | 
 |                     () -> callback.onRttInitiationSuccess(connection)); | 
 |         } | 
 |     } | 
 |  | 
 |     /** @hide */ | 
 |     void onRttInitiationFailure(int reason) { | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post( | 
 |                     () -> callback.onRttInitiationFailure(connection, reason)); | 
 |         } | 
 |     } | 
 |  | 
 |     /** @hide */ | 
 |     void onRttSessionRemotelyTerminated() { | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post( | 
 |                     () -> callback.onRttSessionRemotelyTerminated(connection)); | 
 |         } | 
 |     } | 
 |  | 
 |     /** @hide */ | 
 |     void onRemoteRttRequest() { | 
 |         for (CallbackRecord record : mCallbackRecords) { | 
 |             final RemoteConnection connection = this; | 
 |             final Callback callback = record.getCallback(); | 
 |             record.getHandler().post( | 
 |                     () -> callback.onRemoteRttRequest(connection)); | 
 |         } | 
 |     } | 
 |  | 
 |     /** | 
 |     /** | 
 |      * Create a RemoteConnection represents a failure, and which will be in | 
 |      * {@link Connection#STATE_DISCONNECTED}. Attempting to use it for anything will almost | 
 |      * certainly result in bad things happening. Do not do this. | 
 |      * | 
 |      * @return a failed {@link RemoteConnection} | 
 |      * | 
 |      * @hide | 
 |      */ | 
 |     public static RemoteConnection failure(DisconnectCause disconnectCause) { | 
 |         return new RemoteConnection(disconnectCause); | 
 |     } | 
 |  | 
 |     private static final class CallbackRecord extends Callback { | 
 |         private final Callback mCallback; | 
 |         private final Handler mHandler; | 
 |  | 
 |         public CallbackRecord(Callback callback, Handler handler) { | 
 |             mCallback = callback; | 
 |             mHandler = handler; | 
 |         } | 
 |  | 
 |         public Callback getCallback() { | 
 |             return mCallback; | 
 |         } | 
 |  | 
 |         public Handler getHandler() { | 
 |             return mHandler; | 
 |         } | 
 |     } | 
 | } |