|  | /* | 
|  | * 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 com.android.internal.os.SomeArgs; | 
|  | import com.android.internal.telecom.IVideoCallback; | 
|  | import com.android.internal.telecom.IVideoProvider; | 
|  |  | 
|  | import android.annotation.Nullable; | 
|  | import android.annotation.SystemApi; | 
|  | import android.hardware.camera2.CameraManager; | 
|  | import android.net.Uri; | 
|  | import android.os.Bundle; | 
|  | import android.os.Handler; | 
|  | import android.os.IBinder; | 
|  | import android.os.Looper; | 
|  | import android.os.Message; | 
|  | import android.os.RemoteException; | 
|  | import android.view.Surface; | 
|  |  | 
|  | import java.util.ArrayList; | 
|  | import java.util.Collections; | 
|  | import java.util.List; | 
|  | import java.util.Set; | 
|  | import java.util.concurrent.ConcurrentHashMap; | 
|  |  | 
|  | /** | 
|  | * Represents a phone call or connection to a remote endpoint that carries voice and/or video | 
|  | * traffic. | 
|  | * <p> | 
|  | * Implementations create a custom subclass of {@code Connection} and return it to the framework | 
|  | * as the return value of | 
|  | * {@link ConnectionService#onCreateIncomingConnection(PhoneAccountHandle, ConnectionRequest)} | 
|  | * or | 
|  | * {@link ConnectionService#onCreateOutgoingConnection(PhoneAccountHandle, ConnectionRequest)}. | 
|  | * Implementations are then responsible for updating the state of the {@code Connection}, and | 
|  | * must call {@link #destroy()} to signal to the framework that the {@code Connection} is no | 
|  | * longer used and associated resources may be recovered. | 
|  | */ | 
|  | public abstract class Connection extends Conferenceable { | 
|  |  | 
|  | /** | 
|  | * The connection is initializing. This is generally the first state for a {@code Connection} | 
|  | * returned by a {@link ConnectionService}. | 
|  | */ | 
|  | public static final int STATE_INITIALIZING = 0; | 
|  |  | 
|  | /** | 
|  | * The connection is new and not connected. | 
|  | */ | 
|  | public static final int STATE_NEW = 1; | 
|  |  | 
|  | /** | 
|  | * An incoming connection is in the ringing state. During this state, the user's ringer or | 
|  | * vibration feature will be activated. | 
|  | */ | 
|  | public static final int STATE_RINGING = 2; | 
|  |  | 
|  | /** | 
|  | * An outgoing connection is in the dialing state. In this state the other party has not yet | 
|  | * answered the call and the user traditionally hears a ringback tone. | 
|  | */ | 
|  | public static final int STATE_DIALING = 3; | 
|  |  | 
|  | /** | 
|  | * A connection is active. Both parties are connected to the call and can actively communicate. | 
|  | */ | 
|  | public static final int STATE_ACTIVE = 4; | 
|  |  | 
|  | /** | 
|  | * A connection is on hold. | 
|  | */ | 
|  | public static final int STATE_HOLDING = 5; | 
|  |  | 
|  | /** | 
|  | * A connection has been disconnected. This is the final state once the user has been | 
|  | * disconnected from a call either locally, remotely or by an error in the service. | 
|  | */ | 
|  | public static final int STATE_DISCONNECTED = 6; | 
|  |  | 
|  | /** | 
|  | * Connection can currently be put on hold or unheld. This is distinct from | 
|  | * {@link #CAPABILITY_SUPPORT_HOLD} in that although a connection may support 'hold' most times, | 
|  | * it does not at the moment support the function. This can be true while the call is in the | 
|  | * state {@link #STATE_DIALING}, for example. During this condition, an in-call UI may | 
|  | * display a disabled 'hold' button. | 
|  | */ | 
|  | public static final int CAPABILITY_HOLD = 0x00000001; | 
|  |  | 
|  | /** Connection supports the hold feature. */ | 
|  | public static final int CAPABILITY_SUPPORT_HOLD = 0x00000002; | 
|  |  | 
|  | /** | 
|  | * Connections within a conference can be merged. A {@link ConnectionService} has the option to | 
|  | * add a {@link Conference} before the child {@link Connection}s are merged. This is how | 
|  | * CDMA-based {@link Connection}s are implemented. For these unmerged {@link Conference}s, this | 
|  | * capability allows a merge button to be shown while the conference is in the foreground | 
|  | * of the in-call UI. | 
|  | * <p> | 
|  | * This is only intended for use by a {@link Conference}. | 
|  | */ | 
|  | public static final int CAPABILITY_MERGE_CONFERENCE = 0x00000004; | 
|  |  | 
|  | /** | 
|  | * Connections within a conference can be swapped between foreground and background. | 
|  | * See {@link #CAPABILITY_MERGE_CONFERENCE} for additional information. | 
|  | * <p> | 
|  | * This is only intended for use by a {@link Conference}. | 
|  | */ | 
|  | public static final int CAPABILITY_SWAP_CONFERENCE = 0x00000008; | 
|  |  | 
|  | /** | 
|  | * @hide | 
|  | */ | 
|  | public static final int CAPABILITY_UNUSED = 0x00000010; | 
|  |  | 
|  | /** Connection supports responding via text option. */ | 
|  | public static final int CAPABILITY_RESPOND_VIA_TEXT = 0x00000020; | 
|  |  | 
|  | /** Connection can be muted. */ | 
|  | public static final int CAPABILITY_MUTE = 0x00000040; | 
|  |  | 
|  | /** | 
|  | * Connection supports conference management. This capability only applies to | 
|  | * {@link Conference}s which can have {@link Connection}s as children. | 
|  | */ | 
|  | public static final int CAPABILITY_MANAGE_CONFERENCE = 0x00000080; | 
|  |  | 
|  | /** | 
|  | * Local device supports receiving video. | 
|  | */ | 
|  | public static final int CAPABILITY_SUPPORTS_VT_LOCAL_RX = 0x00000100; | 
|  |  | 
|  | /** | 
|  | * Local device supports transmitting video. | 
|  | */ | 
|  | public static final int CAPABILITY_SUPPORTS_VT_LOCAL_TX = 0x00000200; | 
|  |  | 
|  | /** | 
|  | * Local device supports bidirectional video calling. | 
|  | */ | 
|  | public static final int CAPABILITY_SUPPORTS_VT_LOCAL_BIDIRECTIONAL = | 
|  | CAPABILITY_SUPPORTS_VT_LOCAL_RX | CAPABILITY_SUPPORTS_VT_LOCAL_TX; | 
|  |  | 
|  | /** | 
|  | * Remote device supports receiving video. | 
|  | */ | 
|  | public static final int CAPABILITY_SUPPORTS_VT_REMOTE_RX = 0x00000400; | 
|  |  | 
|  | /** | 
|  | * Remote device supports transmitting video. | 
|  | */ | 
|  | public static final int CAPABILITY_SUPPORTS_VT_REMOTE_TX = 0x00000800; | 
|  |  | 
|  | /** | 
|  | * Remote device supports bidirectional video calling. | 
|  | */ | 
|  | public static final int CAPABILITY_SUPPORTS_VT_REMOTE_BIDIRECTIONAL = | 
|  | CAPABILITY_SUPPORTS_VT_REMOTE_RX | CAPABILITY_SUPPORTS_VT_REMOTE_TX; | 
|  |  | 
|  | /** | 
|  | * Connection is able to be separated from its parent {@code Conference}, if any. | 
|  | */ | 
|  | public static final int CAPABILITY_SEPARATE_FROM_CONFERENCE = 0x00001000; | 
|  |  | 
|  | /** | 
|  | * Connection is able to be individually disconnected when in a {@code Conference}. | 
|  | */ | 
|  | public static final int CAPABILITY_DISCONNECT_FROM_CONFERENCE = 0x00002000; | 
|  |  | 
|  | /** | 
|  | * Whether the call is a generic conference, where we do not know the precise state of | 
|  | * participants in the conference (eg. on CDMA). | 
|  | * | 
|  | * @hide | 
|  | */ | 
|  | public static final int CAPABILITY_GENERIC_CONFERENCE = 0x00004000; | 
|  |  | 
|  | /** | 
|  | * Connection is using high definition audio. | 
|  | * @hide | 
|  | */ | 
|  | public static final int CAPABILITY_HIGH_DEF_AUDIO = 0x00008000; | 
|  |  | 
|  | /** | 
|  | * Connection is using WIFI. | 
|  | * @hide | 
|  | */ | 
|  | public static final int CAPABILITY_WIFI = 0x00010000; | 
|  |  | 
|  | /** | 
|  | * Indicates that the current device callback number should be shown. | 
|  | * | 
|  | * @hide | 
|  | */ | 
|  | public static final int CAPABILITY_SHOW_CALLBACK_NUMBER = 0x00020000; | 
|  |  | 
|  | /** | 
|  | * Speed up audio setup for MT call. | 
|  | * @hide | 
|  | */ | 
|  | public static final int CAPABILITY_SPEED_UP_MT_AUDIO = 0x00040000; | 
|  |  | 
|  | /** | 
|  | * Call can be upgraded to a video call. | 
|  | */ | 
|  | public static final int CAPABILITY_CAN_UPGRADE_TO_VIDEO = 0x00080000; | 
|  |  | 
|  | /** | 
|  | * For video calls, indicates whether the outgoing video for the call can be paused using | 
|  | * the {@link android.telecom.VideoProfile#STATE_PAUSED} VideoState. | 
|  | */ | 
|  | public static final int CAPABILITY_CAN_PAUSE_VIDEO = 0x00100000; | 
|  |  | 
|  | /** | 
|  | * For a conference, indicates the conference will not have child connections. | 
|  | * <p> | 
|  | * An example of a conference with child connections is a GSM conference call, where the radio | 
|  | * retains connections to the individual participants of the conference.  Another example is an | 
|  | * IMS conference call where conference event package functionality is supported; in this case | 
|  | * the conference server ensures the radio is aware of the participants in the conference, which | 
|  | * are represented by child connections. | 
|  | * <p> | 
|  | * An example of a conference with no child connections is an IMS conference call with no | 
|  | * conference event package support.  Such a conference is represented by the radio as a single | 
|  | * connection to the IMS conference server. | 
|  | * <p> | 
|  | * Indicating whether a conference has children or not is important to help user interfaces | 
|  | * visually represent a conference.  A conference with no children, for example, will have the | 
|  | * conference connection shown in the list of calls on a Bluetooth device, where if the | 
|  | * conference has children, only the children will be shown in the list of calls on a Bluetooth | 
|  | * device. | 
|  | * @hide | 
|  | */ | 
|  | public static final int CAPABILITY_CONFERENCE_HAS_NO_CHILDREN = 0x00200000; | 
|  |  | 
|  | //********************************************************************************************** | 
|  | // Next CAPABILITY value: 0x00400000 | 
|  | //********************************************************************************************** | 
|  |  | 
|  | /** | 
|  | * Connection extra key used to store the last forwarded number associated with the current | 
|  | * connection.  Used to communicate to the user interface that the connection was forwarded via | 
|  | * the specified number. | 
|  | */ | 
|  | public static final String EXTRA_LAST_FORWARDED_NUMBER = | 
|  | "android.telecom.extra.LAST_FORWARDED_NUMBER"; | 
|  |  | 
|  | /** | 
|  | * Connection extra key used to store a child number associated with the current connection. | 
|  | * Used to communicate to the user interface that the connection was received via | 
|  | * a child address (i.e. phone number) associated with the {@link PhoneAccount}'s primary | 
|  | * address. | 
|  | */ | 
|  | public static final String EXTRA_CHILD_ADDRESS = "android.telecom.extra.CHILD_ADDRESS"; | 
|  |  | 
|  | /** | 
|  | * Connection extra key used to store the subject for an incoming call.  The user interface can | 
|  | * query this extra and display its contents for incoming calls.  Will only be used if the | 
|  | * {@link PhoneAccount} supports the capability {@link PhoneAccount#CAPABILITY_CALL_SUBJECT}. | 
|  | */ | 
|  | public static final String EXTRA_CALL_SUBJECT = "android.telecom.extra.CALL_SUBJECT"; | 
|  |  | 
|  | // Flag controlling whether PII is emitted into the logs | 
|  | private static final boolean PII_DEBUG = Log.isLoggable(android.util.Log.DEBUG); | 
|  |  | 
|  | /** | 
|  | * Whether the given capabilities support the specified capability. | 
|  | * | 
|  | * @param capabilities A capability bit field. | 
|  | * @param capability The capability to check capabilities for. | 
|  | * @return Whether the specified capability is supported. | 
|  | * @hide | 
|  | */ | 
|  | public static boolean can(int capabilities, int capability) { | 
|  | return (capabilities & capability) != 0; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Whether the capabilities of this {@code Connection} supports the specified capability. | 
|  | * | 
|  | * @param capability The capability to check capabilities for. | 
|  | * @return Whether the specified capability is supported. | 
|  | * @hide | 
|  | */ | 
|  | public boolean can(int capability) { | 
|  | return can(mConnectionCapabilities, capability); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Removes the specified capability from the set of capabilities of this {@code Connection}. | 
|  | * | 
|  | * @param capability The capability to remove from the set. | 
|  | * @hide | 
|  | */ | 
|  | public void removeCapability(int capability) { | 
|  | mConnectionCapabilities &= ~capability; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Adds the specified capability to the set of capabilities of this {@code Connection}. | 
|  | * | 
|  | * @param capability The capability to add to the set. | 
|  | * @hide | 
|  | */ | 
|  | public void addCapability(int capability) { | 
|  | mConnectionCapabilities |= capability; | 
|  | } | 
|  |  | 
|  |  | 
|  | public static String capabilitiesToString(int capabilities) { | 
|  | StringBuilder builder = new StringBuilder(); | 
|  | builder.append("[Capabilities:"); | 
|  | if (can(capabilities, CAPABILITY_HOLD)) { | 
|  | builder.append(" CAPABILITY_HOLD"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_SUPPORT_HOLD)) { | 
|  | builder.append(" CAPABILITY_SUPPORT_HOLD"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_MERGE_CONFERENCE)) { | 
|  | builder.append(" CAPABILITY_MERGE_CONFERENCE"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_SWAP_CONFERENCE)) { | 
|  | builder.append(" CAPABILITY_SWAP_CONFERENCE"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_RESPOND_VIA_TEXT)) { | 
|  | builder.append(" CAPABILITY_RESPOND_VIA_TEXT"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_MUTE)) { | 
|  | builder.append(" CAPABILITY_MUTE"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_MANAGE_CONFERENCE)) { | 
|  | builder.append(" CAPABILITY_MANAGE_CONFERENCE"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_SUPPORTS_VT_LOCAL_RX)) { | 
|  | builder.append(" CAPABILITY_SUPPORTS_VT_LOCAL_RX"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_SUPPORTS_VT_LOCAL_TX)) { | 
|  | builder.append(" CAPABILITY_SUPPORTS_VT_LOCAL_TX"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_SUPPORTS_VT_LOCAL_BIDIRECTIONAL)) { | 
|  | builder.append(" CAPABILITY_SUPPORTS_VT_LOCAL_BIDIRECTIONAL"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_SUPPORTS_VT_REMOTE_RX)) { | 
|  | builder.append(" CAPABILITY_SUPPORTS_VT_REMOTE_RX"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_SUPPORTS_VT_REMOTE_TX)) { | 
|  | builder.append(" CAPABILITY_SUPPORTS_VT_REMOTE_TX"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_SUPPORTS_VT_REMOTE_BIDIRECTIONAL)) { | 
|  | builder.append(" CAPABILITY_SUPPORTS_VT_REMOTE_BIDIRECTIONAL"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_HIGH_DEF_AUDIO)) { | 
|  | builder.append(" CAPABILITY_HIGH_DEF_AUDIO"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_WIFI)) { | 
|  | builder.append(" CAPABILITY_WIFI"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_GENERIC_CONFERENCE)) { | 
|  | builder.append(" CAPABILITY_GENERIC_CONFERENCE"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_SHOW_CALLBACK_NUMBER)) { | 
|  | builder.append(" CAPABILITY_SHOW_CALLBACK_NUMBER"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_SPEED_UP_MT_AUDIO)) { | 
|  | builder.append(" CAPABILITY_SPEED_UP_MT_AUDIO"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_CAN_UPGRADE_TO_VIDEO)) { | 
|  | builder.append(" CAPABILITY_CAN_UPGRADE_TO_VIDEO"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_CAN_PAUSE_VIDEO)) { | 
|  | builder.append(" CAPABILITY_CAN_PAUSE_VIDEO"); | 
|  | } | 
|  | if (can(capabilities, CAPABILITY_CONFERENCE_HAS_NO_CHILDREN)) { | 
|  | builder.append(" CAPABILITY_SINGLE_PARTY_CONFERENCE"); | 
|  | } | 
|  | builder.append("]"); | 
|  | return builder.toString(); | 
|  | } | 
|  |  | 
|  | /** @hide */ | 
|  | public abstract static class Listener { | 
|  | public void onStateChanged(Connection c, int state) {} | 
|  | public void onAddressChanged(Connection c, Uri newAddress, int presentation) {} | 
|  | public void onCallerDisplayNameChanged( | 
|  | Connection c, String callerDisplayName, int presentation) {} | 
|  | public void onVideoStateChanged(Connection c, int videoState) {} | 
|  | public void onDisconnected(Connection c, DisconnectCause disconnectCause) {} | 
|  | public void onPostDialWait(Connection c, String remaining) {} | 
|  | public void onPostDialChar(Connection c, char nextChar) {} | 
|  | public void onRingbackRequested(Connection c, boolean ringback) {} | 
|  | public void onDestroyed(Connection c) {} | 
|  | public void onConnectionCapabilitiesChanged(Connection c, int capabilities) {} | 
|  | public void onVideoProviderChanged( | 
|  | Connection c, VideoProvider videoProvider) {} | 
|  | public void onAudioModeIsVoipChanged(Connection c, boolean isVoip) {} | 
|  | public void onStatusHintsChanged(Connection c, StatusHints statusHints) {} | 
|  | public void onConferenceablesChanged( | 
|  | Connection c, List<Conferenceable> conferenceables) {} | 
|  | public void onConferenceChanged(Connection c, Conference conference) {} | 
|  | /** @hide */ | 
|  | public void onConferenceParticipantsChanged(Connection c, | 
|  | List<ConferenceParticipant> participants) {} | 
|  | public void onConferenceStarted() {} | 
|  | public void onConferenceMergeFailed(Connection c) {} | 
|  | public void onExtrasChanged(Connection c, Bundle extras) {} | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Provides a means of controlling the video session associated with a {@link Connection}. | 
|  | * <p> | 
|  | * Implementations create a custom subclass of {@link VideoProvider} and the | 
|  | * {@link ConnectionService} creates an instance sets it on the {@link Connection} using | 
|  | * {@link Connection#setVideoProvider(VideoProvider)}.  Any connection which supports video | 
|  | * should set the {@link VideoProvider}. | 
|  | * <p> | 
|  | * The {@link VideoProvider} serves two primary purposes: it provides a means for Telecom and | 
|  | * {@link InCallService} implementations to issue requests related to the video session; | 
|  | * it provides a means for the {@link ConnectionService} to report events and information | 
|  | * related to the video session to Telecom and the {@link InCallService} implementations. | 
|  | * <p> | 
|  | * {@link InCallService} implementations interact with the {@link VideoProvider} via | 
|  | * {@link android.telecom.InCallService.VideoCall}. | 
|  | */ | 
|  | public static abstract class VideoProvider { | 
|  |  | 
|  | /** | 
|  | * Video is not being received (no protocol pause was issued). | 
|  | * @see #handleCallSessionEvent(int) | 
|  | */ | 
|  | public static final int SESSION_EVENT_RX_PAUSE = 1; | 
|  |  | 
|  | /** | 
|  | * Video reception has resumed after a {@link #SESSION_EVENT_RX_PAUSE}. | 
|  | * @see #handleCallSessionEvent(int) | 
|  | */ | 
|  | public static final int SESSION_EVENT_RX_RESUME = 2; | 
|  |  | 
|  | /** | 
|  | * Video transmission has begun. This occurs after a negotiated start of video transmission | 
|  | * when the underlying protocol has actually begun transmitting video to the remote party. | 
|  | * @see #handleCallSessionEvent(int) | 
|  | */ | 
|  | public static final int SESSION_EVENT_TX_START = 3; | 
|  |  | 
|  | /** | 
|  | * Video transmission has stopped. This occurs after a negotiated stop of video transmission | 
|  | * when the underlying protocol has actually stopped transmitting video to the remote party. | 
|  | * @see #handleCallSessionEvent(int) | 
|  | */ | 
|  | public static final int SESSION_EVENT_TX_STOP = 4; | 
|  |  | 
|  | /** | 
|  | * A camera failure has occurred for the selected camera.  The {@link InCallService} can use | 
|  | * this as a cue to inform the user the camera is not available. | 
|  | * @see #handleCallSessionEvent(int) | 
|  | */ | 
|  | public static final int SESSION_EVENT_CAMERA_FAILURE = 5; | 
|  |  | 
|  | /** | 
|  | * Issued after {@link #SESSION_EVENT_CAMERA_FAILURE} when the camera is once again ready | 
|  | * for operation.  The {@link InCallService} can use this as a cue to inform the user that | 
|  | * the camera has become available again. | 
|  | * @see #handleCallSessionEvent(int) | 
|  | */ | 
|  | public static final int SESSION_EVENT_CAMERA_READY = 6; | 
|  |  | 
|  | /** | 
|  | * Session modify request was successful. | 
|  | * @see #receiveSessionModifyResponse(int, VideoProfile, VideoProfile) | 
|  | */ | 
|  | public static final int SESSION_MODIFY_REQUEST_SUCCESS = 1; | 
|  |  | 
|  | /** | 
|  | * Session modify request failed. | 
|  | * @see #receiveSessionModifyResponse(int, VideoProfile, VideoProfile) | 
|  | */ | 
|  | public static final int SESSION_MODIFY_REQUEST_FAIL = 2; | 
|  |  | 
|  | /** | 
|  | * Session modify request ignored due to invalid parameters. | 
|  | * @see #receiveSessionModifyResponse(int, VideoProfile, VideoProfile) | 
|  | */ | 
|  | public static final int SESSION_MODIFY_REQUEST_INVALID = 3; | 
|  |  | 
|  | /** | 
|  | * Session modify request timed out. | 
|  | * @see #receiveSessionModifyResponse(int, VideoProfile, VideoProfile) | 
|  | */ | 
|  | public static final int SESSION_MODIFY_REQUEST_TIMED_OUT = 4; | 
|  |  | 
|  | /** | 
|  | * Session modify request rejected by remote user. | 
|  | * @see #receiveSessionModifyResponse(int, VideoProfile, VideoProfile) | 
|  | */ | 
|  | public static final int SESSION_MODIFY_REQUEST_REJECTED_BY_REMOTE = 5; | 
|  |  | 
|  | private static final int MSG_ADD_VIDEO_CALLBACK = 1; | 
|  | private static final int MSG_SET_CAMERA = 2; | 
|  | private static final int MSG_SET_PREVIEW_SURFACE = 3; | 
|  | private static final int MSG_SET_DISPLAY_SURFACE = 4; | 
|  | private static final int MSG_SET_DEVICE_ORIENTATION = 5; | 
|  | private static final int MSG_SET_ZOOM = 6; | 
|  | private static final int MSG_SEND_SESSION_MODIFY_REQUEST = 7; | 
|  | private static final int MSG_SEND_SESSION_MODIFY_RESPONSE = 8; | 
|  | private static final int MSG_REQUEST_CAMERA_CAPABILITIES = 9; | 
|  | private static final int MSG_REQUEST_CONNECTION_DATA_USAGE = 10; | 
|  | private static final int MSG_SET_PAUSE_IMAGE = 11; | 
|  | private static final int MSG_REMOVE_VIDEO_CALLBACK = 12; | 
|  |  | 
|  | private VideoProvider.VideoProviderHandler mMessageHandler; | 
|  | private final VideoProvider.VideoProviderBinder mBinder; | 
|  |  | 
|  | /** | 
|  | * Stores a list of the video callbacks, keyed by IBinder. | 
|  | * | 
|  | * 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 ConcurrentHashMap<IBinder, IVideoCallback> mVideoCallbacks = | 
|  | new ConcurrentHashMap<IBinder, IVideoCallback>(8, 0.9f, 1); | 
|  |  | 
|  | /** | 
|  | * Default handler used to consolidate binder method calls onto a single thread. | 
|  | */ | 
|  | private final class VideoProviderHandler extends Handler { | 
|  | public VideoProviderHandler() { | 
|  | super(); | 
|  | } | 
|  |  | 
|  | public VideoProviderHandler(Looper looper) { | 
|  | super(looper); | 
|  | } | 
|  |  | 
|  | @Override | 
|  | public void handleMessage(Message msg) { | 
|  | switch (msg.what) { | 
|  | case MSG_ADD_VIDEO_CALLBACK: { | 
|  | IBinder binder = (IBinder) msg.obj; | 
|  | IVideoCallback callback = IVideoCallback.Stub | 
|  | .asInterface((IBinder) msg.obj); | 
|  | if (callback == null) { | 
|  | Log.w(this, "addVideoProvider - skipped; callback is null."); | 
|  | break; | 
|  | } | 
|  |  | 
|  | if (mVideoCallbacks.containsKey(binder)) { | 
|  | Log.i(this, "addVideoProvider - skipped; already present."); | 
|  | break; | 
|  | } | 
|  | mVideoCallbacks.put(binder, callback); | 
|  | break; | 
|  | } | 
|  | case MSG_REMOVE_VIDEO_CALLBACK: { | 
|  | IBinder binder = (IBinder) msg.obj; | 
|  | IVideoCallback callback = IVideoCallback.Stub | 
|  | .asInterface((IBinder) msg.obj); | 
|  | if (!mVideoCallbacks.containsKey(binder)) { | 
|  | Log.i(this, "removeVideoProvider - skipped; not present."); | 
|  | break; | 
|  | } | 
|  | mVideoCallbacks.remove(binder); | 
|  | break; | 
|  | } | 
|  | case MSG_SET_CAMERA: | 
|  | onSetCamera((String) msg.obj); | 
|  | break; | 
|  | case MSG_SET_PREVIEW_SURFACE: | 
|  | onSetPreviewSurface((Surface) msg.obj); | 
|  | break; | 
|  | case MSG_SET_DISPLAY_SURFACE: | 
|  | onSetDisplaySurface((Surface) msg.obj); | 
|  | break; | 
|  | case MSG_SET_DEVICE_ORIENTATION: | 
|  | onSetDeviceOrientation(msg.arg1); | 
|  | break; | 
|  | case MSG_SET_ZOOM: | 
|  | onSetZoom((Float) msg.obj); | 
|  | break; | 
|  | case MSG_SEND_SESSION_MODIFY_REQUEST: { | 
|  | SomeArgs args = (SomeArgs) msg.obj; | 
|  | try { | 
|  | onSendSessionModifyRequest((VideoProfile) args.arg1, | 
|  | (VideoProfile) args.arg2); | 
|  | } finally { | 
|  | args.recycle(); | 
|  | } | 
|  | break; | 
|  | } | 
|  | case MSG_SEND_SESSION_MODIFY_RESPONSE: | 
|  | onSendSessionModifyResponse((VideoProfile) msg.obj); | 
|  | break; | 
|  | case MSG_REQUEST_CAMERA_CAPABILITIES: | 
|  | onRequestCameraCapabilities(); | 
|  | break; | 
|  | case MSG_REQUEST_CONNECTION_DATA_USAGE: | 
|  | onRequestConnectionDataUsage(); | 
|  | break; | 
|  | case MSG_SET_PAUSE_IMAGE: | 
|  | onSetPauseImage((Uri) msg.obj); | 
|  | break; | 
|  | default: | 
|  | break; | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * IVideoProvider stub implementation. | 
|  | */ | 
|  | private final class VideoProviderBinder extends IVideoProvider.Stub { | 
|  | public void addVideoCallback(IBinder videoCallbackBinder) { | 
|  | mMessageHandler.obtainMessage( | 
|  | MSG_ADD_VIDEO_CALLBACK, videoCallbackBinder).sendToTarget(); | 
|  | } | 
|  |  | 
|  | public void removeVideoCallback(IBinder videoCallbackBinder) { | 
|  | mMessageHandler.obtainMessage( | 
|  | MSG_REMOVE_VIDEO_CALLBACK, videoCallbackBinder).sendToTarget(); | 
|  | } | 
|  |  | 
|  | public void setCamera(String cameraId) { | 
|  | mMessageHandler.obtainMessage(MSG_SET_CAMERA, cameraId).sendToTarget(); | 
|  | } | 
|  |  | 
|  | public void setPreviewSurface(Surface surface) { | 
|  | mMessageHandler.obtainMessage(MSG_SET_PREVIEW_SURFACE, surface).sendToTarget(); | 
|  | } | 
|  |  | 
|  | public void setDisplaySurface(Surface surface) { | 
|  | mMessageHandler.obtainMessage(MSG_SET_DISPLAY_SURFACE, surface).sendToTarget(); | 
|  | } | 
|  |  | 
|  | public void setDeviceOrientation(int rotation) { | 
|  | mMessageHandler.obtainMessage( | 
|  | MSG_SET_DEVICE_ORIENTATION, rotation, 0).sendToTarget(); | 
|  | } | 
|  |  | 
|  | public void setZoom(float value) { | 
|  | mMessageHandler.obtainMessage(MSG_SET_ZOOM, value).sendToTarget(); | 
|  | } | 
|  |  | 
|  | public void sendSessionModifyRequest(VideoProfile fromProfile, VideoProfile toProfile) { | 
|  | SomeArgs args = SomeArgs.obtain(); | 
|  | args.arg1 = fromProfile; | 
|  | args.arg2 = toProfile; | 
|  | mMessageHandler.obtainMessage(MSG_SEND_SESSION_MODIFY_REQUEST, args).sendToTarget(); | 
|  | } | 
|  |  | 
|  | public void sendSessionModifyResponse(VideoProfile responseProfile) { | 
|  | mMessageHandler.obtainMessage( | 
|  | MSG_SEND_SESSION_MODIFY_RESPONSE, responseProfile).sendToTarget(); | 
|  | } | 
|  |  | 
|  | public void requestCameraCapabilities() { | 
|  | mMessageHandler.obtainMessage(MSG_REQUEST_CAMERA_CAPABILITIES).sendToTarget(); | 
|  | } | 
|  |  | 
|  | public void requestCallDataUsage() { | 
|  | mMessageHandler.obtainMessage(MSG_REQUEST_CONNECTION_DATA_USAGE).sendToTarget(); | 
|  | } | 
|  |  | 
|  | public void setPauseImage(Uri uri) { | 
|  | mMessageHandler.obtainMessage(MSG_SET_PAUSE_IMAGE, uri).sendToTarget(); | 
|  | } | 
|  | } | 
|  |  | 
|  | public VideoProvider() { | 
|  | mBinder = new VideoProvider.VideoProviderBinder(); | 
|  | mMessageHandler = new VideoProvider.VideoProviderHandler(Looper.getMainLooper()); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Creates an instance of the {@link VideoProvider}, specifying the looper to use. | 
|  | * | 
|  | * @param looper The looper. | 
|  | * @hide | 
|  | */ | 
|  | public VideoProvider(Looper looper) { | 
|  | mBinder = new VideoProvider.VideoProviderBinder(); | 
|  | mMessageHandler = new VideoProvider.VideoProviderHandler(looper); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Returns binder object which can be used across IPC methods. | 
|  | * @hide | 
|  | */ | 
|  | public final IVideoProvider getInterface() { | 
|  | return mBinder; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Sets the camera to be used for the outgoing video. | 
|  | * <p> | 
|  | * The {@link VideoProvider} should respond by communicating the capabilities of the chosen | 
|  | * camera via | 
|  | * {@link VideoProvider#changeCameraCapabilities(VideoProfile.CameraCapabilities)}. | 
|  | * <p> | 
|  | * Sent from the {@link InCallService} via | 
|  | * {@link InCallService.VideoCall#setCamera(String)}. | 
|  | * | 
|  | * @param cameraId The id of the camera (use ids as reported by | 
|  | * {@link CameraManager#getCameraIdList()}). | 
|  | */ | 
|  | public abstract void onSetCamera(String cameraId); | 
|  |  | 
|  | /** | 
|  | * Sets the surface to be used for displaying a preview of what the user's camera is | 
|  | * currently capturing.  When video transmission is enabled, this is the video signal which | 
|  | * is sent to the remote device. | 
|  | * <p> | 
|  | * Sent from the {@link InCallService} via | 
|  | * {@link InCallService.VideoCall#setPreviewSurface(Surface)}. | 
|  | * | 
|  | * @param surface The {@link Surface}. | 
|  | */ | 
|  | public abstract void onSetPreviewSurface(Surface surface); | 
|  |  | 
|  | /** | 
|  | * Sets the surface to be used for displaying the video received from the remote device. | 
|  | * <p> | 
|  | * Sent from the {@link InCallService} via | 
|  | * {@link InCallService.VideoCall#setDisplaySurface(Surface)}. | 
|  | * | 
|  | * @param surface The {@link Surface}. | 
|  | */ | 
|  | public abstract void onSetDisplaySurface(Surface surface); | 
|  |  | 
|  | /** | 
|  | * Sets the device orientation, in degrees.  Assumes that a standard portrait orientation of | 
|  | * the device is 0 degrees. | 
|  | * <p> | 
|  | * Sent from the {@link InCallService} via | 
|  | * {@link InCallService.VideoCall#setDeviceOrientation(int)}. | 
|  | * | 
|  | * @param rotation The device orientation, in degrees. | 
|  | */ | 
|  | public abstract void onSetDeviceOrientation(int rotation); | 
|  |  | 
|  | /** | 
|  | * Sets camera zoom ratio. | 
|  | * <p> | 
|  | * Sent from the {@link InCallService} via {@link InCallService.VideoCall#setZoom(float)}. | 
|  | * | 
|  | * @param value The camera zoom ratio. | 
|  | */ | 
|  | public abstract void onSetZoom(float value); | 
|  |  | 
|  | /** | 
|  | * Issues a request to modify the properties of the current video session. | 
|  | * <p> | 
|  | * Example scenarios include: requesting an audio-only call to be upgraded to a | 
|  | * bi-directional video call, turning on or off the user's camera, sending a pause signal | 
|  | * when the {@link InCallService} is no longer the foreground application. | 
|  | * <p> | 
|  | * If the {@link VideoProvider} determines a request to be invalid, it should call | 
|  | * {@link #receiveSessionModifyResponse(int, VideoProfile, VideoProfile)} to report the | 
|  | * invalid request back to the {@link InCallService}. | 
|  | * <p> | 
|  | * Where a request requires confirmation from the user of the peer device, the | 
|  | * {@link VideoProvider} must communicate the request to the peer device and handle the | 
|  | * user's response.  {@link #receiveSessionModifyResponse(int, VideoProfile, VideoProfile)} | 
|  | * is used to inform the {@link InCallService} of the result of the request. | 
|  | * <p> | 
|  | * Sent from the {@link InCallService} via | 
|  | * {@link InCallService.VideoCall#sendSessionModifyRequest(VideoProfile)}. | 
|  | * | 
|  | * @param fromProfile The video profile prior to the request. | 
|  | * @param toProfile The video profile with the requested changes made. | 
|  | */ | 
|  | public abstract void onSendSessionModifyRequest(VideoProfile fromProfile, | 
|  | VideoProfile toProfile); | 
|  |  | 
|  | /** | 
|  | * Provides a response to a request to change the current video session properties. | 
|  | * <p> | 
|  | * For example, if the peer requests and upgrade from an audio-only call to a bi-directional | 
|  | * video call, could decline the request and keep the call as audio-only. | 
|  | * In such a scenario, the {@code responseProfile} would have a video state of | 
|  | * {@link VideoProfile#STATE_AUDIO_ONLY}.  If the user had decided to accept the request, | 
|  | * the video state would be {@link VideoProfile#STATE_BIDIRECTIONAL}. | 
|  | * <p> | 
|  | * Sent from the {@link InCallService} via | 
|  | * {@link InCallService.VideoCall#sendSessionModifyResponse(VideoProfile)} in response to | 
|  | * a {@link InCallService.VideoCall.Callback#onSessionModifyRequestReceived(VideoProfile)} | 
|  | * callback. | 
|  | * | 
|  | * @param responseProfile The response video profile. | 
|  | */ | 
|  | public abstract void onSendSessionModifyResponse(VideoProfile responseProfile); | 
|  |  | 
|  | /** | 
|  | * Issues a request to the {@link VideoProvider} to retrieve the camera capabilities. | 
|  | * <p> | 
|  | * The {@link VideoProvider} should respond by communicating the capabilities of the chosen | 
|  | * camera via | 
|  | * {@link VideoProvider#changeCameraCapabilities(VideoProfile.CameraCapabilities)}. | 
|  | * <p> | 
|  | * Sent from the {@link InCallService} via | 
|  | * {@link InCallService.VideoCall#requestCameraCapabilities()}. | 
|  | */ | 
|  | public abstract void onRequestCameraCapabilities(); | 
|  |  | 
|  | /** | 
|  | * Issues a request to the {@link VideoProvider} to retrieve the current data usage for the | 
|  | * video component of the current {@link Connection}. | 
|  | * <p> | 
|  | * The {@link VideoProvider} should respond by communicating current data usage, in bytes, | 
|  | * via {@link VideoProvider#setCallDataUsage(long)}. | 
|  | * <p> | 
|  | * Sent from the {@link InCallService} via | 
|  | * {@link InCallService.VideoCall#requestCallDataUsage()}. | 
|  | */ | 
|  | public abstract void onRequestConnectionDataUsage(); | 
|  |  | 
|  | /** | 
|  | * Provides the {@link VideoProvider} with the {@link Uri} of an image to be displayed to | 
|  | * the peer device when the video signal is paused. | 
|  | * <p> | 
|  | * Sent from the {@link InCallService} via | 
|  | * {@link InCallService.VideoCall#setPauseImage(Uri)}. | 
|  | * | 
|  | * @param uri URI of image to display. | 
|  | */ | 
|  | public abstract void onSetPauseImage(Uri uri); | 
|  |  | 
|  | /** | 
|  | * Used to inform listening {@link InCallService} implementations when the | 
|  | * {@link VideoProvider} receives a session modification request. | 
|  | * <p> | 
|  | * Received by the {@link InCallService} via | 
|  | * {@link InCallService.VideoCall.Callback#onSessionModifyRequestReceived(VideoProfile)}, | 
|  | * | 
|  | * @param videoProfile The requested video profile. | 
|  | * @see #onSendSessionModifyRequest(VideoProfile, VideoProfile) | 
|  | */ | 
|  | public void receiveSessionModifyRequest(VideoProfile videoProfile) { | 
|  | if (mVideoCallbacks != null) { | 
|  | for (IVideoCallback callback : mVideoCallbacks.values()) { | 
|  | try { | 
|  | callback.receiveSessionModifyRequest(videoProfile); | 
|  | } catch (RemoteException ignored) { | 
|  | Log.w(this, "receiveSessionModifyRequest callback failed", ignored); | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Used to inform listening {@link InCallService} implementations when the | 
|  | * {@link VideoProvider} receives a response to a session modification request. | 
|  | * <p> | 
|  | * Received by the {@link InCallService} via | 
|  | * {@link InCallService.VideoCall.Callback#onSessionModifyResponseReceived(int, | 
|  | * VideoProfile, VideoProfile)}. | 
|  | * | 
|  | * @param status Status of the session modify request.  Valid values are | 
|  | *               {@link VideoProvider#SESSION_MODIFY_REQUEST_SUCCESS}, | 
|  | *               {@link VideoProvider#SESSION_MODIFY_REQUEST_FAIL}, | 
|  | *               {@link VideoProvider#SESSION_MODIFY_REQUEST_INVALID}, | 
|  | *               {@link VideoProvider#SESSION_MODIFY_REQUEST_TIMED_OUT}, | 
|  | *               {@link VideoProvider#SESSION_MODIFY_REQUEST_REJECTED_BY_REMOTE} | 
|  | * @param requestedProfile The original request which was sent to the peer device. | 
|  | * @param responseProfile The actual profile changes agreed to by the peer device. | 
|  | * @see #onSendSessionModifyRequest(VideoProfile, VideoProfile) | 
|  | */ | 
|  | public void receiveSessionModifyResponse(int status, | 
|  | VideoProfile requestedProfile, VideoProfile responseProfile) { | 
|  | if (mVideoCallbacks != null) { | 
|  | for (IVideoCallback callback : mVideoCallbacks.values()) { | 
|  | try { | 
|  | callback.receiveSessionModifyResponse(status, requestedProfile, | 
|  | responseProfile); | 
|  | } catch (RemoteException ignored) { | 
|  | Log.w(this, "receiveSessionModifyResponse callback failed", ignored); | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Used to inform listening {@link InCallService} implementations when the | 
|  | * {@link VideoProvider} reports a call session event. | 
|  | * <p> | 
|  | * Received by the {@link InCallService} via | 
|  | * {@link InCallService.VideoCall.Callback#onCallSessionEvent(int)}. | 
|  | * | 
|  | * @param event The event.  Valid values are: {@link VideoProvider#SESSION_EVENT_RX_PAUSE}, | 
|  | *      {@link VideoProvider#SESSION_EVENT_RX_RESUME}, | 
|  | *      {@link VideoProvider#SESSION_EVENT_TX_START}, | 
|  | *      {@link VideoProvider#SESSION_EVENT_TX_STOP}, | 
|  | *      {@link VideoProvider#SESSION_EVENT_CAMERA_FAILURE}, | 
|  | *      {@link VideoProvider#SESSION_EVENT_CAMERA_READY}. | 
|  | */ | 
|  | public void handleCallSessionEvent(int event) { | 
|  | if (mVideoCallbacks != null) { | 
|  | for (IVideoCallback callback : mVideoCallbacks.values()) { | 
|  | try { | 
|  | callback.handleCallSessionEvent(event); | 
|  | } catch (RemoteException ignored) { | 
|  | Log.w(this, "handleCallSessionEvent callback failed", ignored); | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Used to inform listening {@link InCallService} implementations when the dimensions of the | 
|  | * peer's video have changed. | 
|  | * <p> | 
|  | * This could occur if, for example, the peer rotates their device, changing the aspect | 
|  | * ratio of the video, or if the user switches between the back and front cameras. | 
|  | * <p> | 
|  | * Received by the {@link InCallService} via | 
|  | * {@link InCallService.VideoCall.Callback#onPeerDimensionsChanged(int, int)}. | 
|  | * | 
|  | * @param width  The updated peer video width. | 
|  | * @param height The updated peer video height. | 
|  | */ | 
|  | public void changePeerDimensions(int width, int height) { | 
|  | if (mVideoCallbacks != null) { | 
|  | for (IVideoCallback callback : mVideoCallbacks.values()) { | 
|  | try { | 
|  | callback.changePeerDimensions(width, height); | 
|  | } catch (RemoteException ignored) { | 
|  | Log.w(this, "changePeerDimensions callback failed", ignored); | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Used to inform listening {@link InCallService} implementations when the data usage of the | 
|  | * video associated with the current {@link Connection} has changed. | 
|  | * <p> | 
|  | * This could be in response to a preview request via | 
|  | * {@link #onRequestConnectionDataUsage()}, or as a periodic update by the | 
|  | * {@link VideoProvider}.  Where periodic updates of data usage are provided, they should be | 
|  | * provided at most for every 1 MB of data transferred and no more than once every 10 sec. | 
|  | * <p> | 
|  | * Received by the {@link InCallService} via | 
|  | * {@link InCallService.VideoCall.Callback#onCallDataUsageChanged(long)}. | 
|  | * | 
|  | * @param dataUsage The updated data usage (in bytes).  Reported as the cumulative bytes | 
|  | *                  used since the start of the call. | 
|  | */ | 
|  | public void setCallDataUsage(long dataUsage) { | 
|  | if (mVideoCallbacks != null) { | 
|  | for (IVideoCallback callback : mVideoCallbacks.values()) { | 
|  | try { | 
|  | callback.changeCallDataUsage(dataUsage); | 
|  | } catch (RemoteException ignored) { | 
|  | Log.w(this, "setCallDataUsage callback failed", ignored); | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * @see #setCallDataUsage(long) | 
|  | * | 
|  | * @param dataUsage The updated data usage (in byes). | 
|  | * @deprecated - Use {@link #setCallDataUsage(long)} instead. | 
|  | * @hide | 
|  | */ | 
|  | public void changeCallDataUsage(long dataUsage) { | 
|  | setCallDataUsage(dataUsage); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Used to inform listening {@link InCallService} implementations when the capabilities of | 
|  | * the current camera have changed. | 
|  | * <p> | 
|  | * The {@link VideoProvider} should call this in response to | 
|  | * {@link VideoProvider#onRequestCameraCapabilities()}, or when the current camera is | 
|  | * changed via {@link VideoProvider#onSetCamera(String)}. | 
|  | * <p> | 
|  | * Received by the {@link InCallService} via | 
|  | * {@link InCallService.VideoCall.Callback#onCameraCapabilitiesChanged( | 
|  | * VideoProfile.CameraCapabilities)}. | 
|  | * | 
|  | * @param cameraCapabilities The new camera capabilities. | 
|  | */ | 
|  | public void changeCameraCapabilities(VideoProfile.CameraCapabilities cameraCapabilities) { | 
|  | if (mVideoCallbacks != null) { | 
|  | for (IVideoCallback callback : mVideoCallbacks.values()) { | 
|  | try { | 
|  | callback.changeCameraCapabilities(cameraCapabilities); | 
|  | } catch (RemoteException ignored) { | 
|  | Log.w(this, "changeCameraCapabilities callback failed", ignored); | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Used to inform listening {@link InCallService} implementations when the video quality | 
|  | * of the call has changed. | 
|  | * <p> | 
|  | * Received by the {@link InCallService} via | 
|  | * {@link InCallService.VideoCall.Callback#onVideoQualityChanged(int)}. | 
|  | * | 
|  | * @param videoQuality The updated video quality.  Valid values: | 
|  | *      {@link VideoProfile#QUALITY_HIGH}, | 
|  | *      {@link VideoProfile#QUALITY_MEDIUM}, | 
|  | *      {@link VideoProfile#QUALITY_LOW}, | 
|  | *      {@link VideoProfile#QUALITY_DEFAULT}. | 
|  | */ | 
|  | public void changeVideoQuality(int videoQuality) { | 
|  | if (mVideoCallbacks != null) { | 
|  | for (IVideoCallback callback : mVideoCallbacks.values()) { | 
|  | try { | 
|  | callback.changeVideoQuality(videoQuality); | 
|  | } catch (RemoteException ignored) { | 
|  | Log.w(this, "changeVideoQuality callback failed", ignored); | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | private final Listener mConnectionDeathListener = new Listener() { | 
|  | @Override | 
|  | public void onDestroyed(Connection c) { | 
|  | if (mConferenceables.remove(c)) { | 
|  | fireOnConferenceableConnectionsChanged(); | 
|  | } | 
|  | } | 
|  | }; | 
|  |  | 
|  | private final Conference.Listener mConferenceDeathListener = new Conference.Listener() { | 
|  | @Override | 
|  | public void onDestroyed(Conference c) { | 
|  | if (mConferenceables.remove(c)) { | 
|  | fireOnConferenceableConnectionsChanged(); | 
|  | } | 
|  | } | 
|  | }; | 
|  |  | 
|  | /** | 
|  | * 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<Listener> mListeners = Collections.newSetFromMap( | 
|  | new ConcurrentHashMap<Listener, Boolean>(8, 0.9f, 1)); | 
|  | private final List<Conferenceable> mConferenceables = new ArrayList<>(); | 
|  | private final List<Conferenceable> mUnmodifiableConferenceables = | 
|  | Collections.unmodifiableList(mConferenceables); | 
|  |  | 
|  | private int mState = STATE_NEW; | 
|  | private CallAudioState mCallAudioState; | 
|  | private Uri mAddress; | 
|  | private int mAddressPresentation; | 
|  | private String mCallerDisplayName; | 
|  | private int mCallerDisplayNamePresentation; | 
|  | private boolean mRingbackRequested = false; | 
|  | private int mConnectionCapabilities; | 
|  | private VideoProvider mVideoProvider; | 
|  | private boolean mAudioModeIsVoip; | 
|  | private long mConnectTimeMillis = Conference.CONNECT_TIME_NOT_SPECIFIED; | 
|  | private StatusHints mStatusHints; | 
|  | private int mVideoState; | 
|  | private DisconnectCause mDisconnectCause; | 
|  | private Conference mConference; | 
|  | private ConnectionService mConnectionService; | 
|  | private Bundle mExtras; | 
|  |  | 
|  | /** | 
|  | * Create a new Connection. | 
|  | */ | 
|  | public Connection() {} | 
|  |  | 
|  | /** | 
|  | * @return The address (e.g., phone number) to which this Connection is currently communicating. | 
|  | */ | 
|  | public final Uri getAddress() { | 
|  | return mAddress; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * @return The presentation requirements for the address. | 
|  | *         See {@link TelecomManager} for valid values. | 
|  | */ | 
|  | public final int getAddressPresentation() { | 
|  | return mAddressPresentation; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * @return The caller display name (CNAP). | 
|  | */ | 
|  | public final String getCallerDisplayName() { | 
|  | return mCallerDisplayName; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * @return The presentation requirements for the handle. | 
|  | *         See {@link TelecomManager} for valid values. | 
|  | */ | 
|  | public final int getCallerDisplayNamePresentation() { | 
|  | return mCallerDisplayNamePresentation; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * @return The state of this Connection. | 
|  | */ | 
|  | public final int getState() { | 
|  | return mState; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Returns the video state of the connection. | 
|  | * Valid values: {@link VideoProfile#STATE_AUDIO_ONLY}, | 
|  | * {@link VideoProfile#STATE_BIDIRECTIONAL}, | 
|  | * {@link VideoProfile#STATE_TX_ENABLED}, | 
|  | * {@link VideoProfile#STATE_RX_ENABLED}. | 
|  | * | 
|  | * @return The video state of the connection. | 
|  | * @hide | 
|  | */ | 
|  | public final int getVideoState() { | 
|  | return mVideoState; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * @return The audio state of the connection, describing how its audio is currently | 
|  | *         being routed by the system. This is {@code null} if this Connection | 
|  | *         does not directly know about its audio state. | 
|  | * @deprecated Use {@link #getCallAudioState()} instead. | 
|  | * @hide | 
|  | */ | 
|  | @SystemApi | 
|  | @Deprecated | 
|  | public final AudioState getAudioState() { | 
|  | if (mCallAudioState == null) { | 
|  | return null; | 
|  | } | 
|  | return new AudioState(mCallAudioState); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * @return The audio state of the connection, describing how its audio is currently | 
|  | *         being routed by the system. This is {@code null} if this Connection | 
|  | *         does not directly know about its audio state. | 
|  | */ | 
|  | public final CallAudioState getCallAudioState() { | 
|  | return mCallAudioState; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * @return The conference that this connection is a part of.  Null if it is not part of any | 
|  | *         conference. | 
|  | */ | 
|  | public final Conference getConference() { | 
|  | return mConference; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Returns whether this connection is requesting that the system play a ringback tone | 
|  | * on its behalf. | 
|  | */ | 
|  | public final boolean isRingbackRequested() { | 
|  | return mRingbackRequested; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * @return True if the connection's audio mode is VOIP. | 
|  | */ | 
|  | public final boolean getAudioModeIsVoip() { | 
|  | return mAudioModeIsVoip; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Retrieves the connection start time of the {@code Connnection}, if specified.  A value of | 
|  | * {@link Conference#CONNECT_TIME_NOT_SPECIFIED} indicates that Telecom should determine the | 
|  | * start time of the conference. | 
|  | * | 
|  | * @return The time at which the {@code Connnection} was connected. | 
|  | * | 
|  | * @hide | 
|  | */ | 
|  | public final long getConnectTimeMillis() { | 
|  | return mConnectTimeMillis; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * @return The status hints for this connection. | 
|  | */ | 
|  | public final StatusHints getStatusHints() { | 
|  | return mStatusHints; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * @return The extras associated with this connection. | 
|  | */ | 
|  | public final Bundle getExtras() { | 
|  | return mExtras; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Assign a listener to be notified of state changes. | 
|  | * | 
|  | * @param l A listener. | 
|  | * @return This Connection. | 
|  | * | 
|  | * @hide | 
|  | */ | 
|  | public final Connection addConnectionListener(Listener l) { | 
|  | mListeners.add(l); | 
|  | return this; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Remove a previously assigned listener that was being notified of state changes. | 
|  | * | 
|  | * @param l A Listener. | 
|  | * @return This Connection. | 
|  | * | 
|  | * @hide | 
|  | */ | 
|  | public final Connection removeConnectionListener(Listener l) { | 
|  | if (l != null) { | 
|  | mListeners.remove(l); | 
|  | } | 
|  | return this; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * @return The {@link DisconnectCause} for this connection. | 
|  | */ | 
|  | public final DisconnectCause getDisconnectCause() { | 
|  | return mDisconnectCause; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Inform this Connection that the state of its audio output has been changed externally. | 
|  | * | 
|  | * @param state The new audio state. | 
|  | * @hide | 
|  | */ | 
|  | final void setCallAudioState(CallAudioState state) { | 
|  | checkImmutable(); | 
|  | Log.d(this, "setAudioState %s", state); | 
|  | mCallAudioState = state; | 
|  | onAudioStateChanged(getAudioState()); | 
|  | onCallAudioStateChanged(state); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * @param state An integer value of a {@code STATE_*} constant. | 
|  | * @return A string representation of the value. | 
|  | */ | 
|  | public static String stateToString(int state) { | 
|  | switch (state) { | 
|  | case STATE_INITIALIZING: | 
|  | return "INITIALIZING"; | 
|  | case STATE_NEW: | 
|  | return "NEW"; | 
|  | case STATE_RINGING: | 
|  | return "RINGING"; | 
|  | case STATE_DIALING: | 
|  | return "DIALING"; | 
|  | case STATE_ACTIVE: | 
|  | return "ACTIVE"; | 
|  | case STATE_HOLDING: | 
|  | return "HOLDING"; | 
|  | case STATE_DISCONNECTED: | 
|  | return "DISCONNECTED"; | 
|  | default: | 
|  | Log.wtf(Connection.class, "Unknown state %d", state); | 
|  | return "UNKNOWN"; | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Returns the connection's capabilities, as a bit mask of the {@code CAPABILITY_*} constants. | 
|  | */ | 
|  | public final int getConnectionCapabilities() { | 
|  | return mConnectionCapabilities; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Sets the value of the {@link #getAddress()} property. | 
|  | * | 
|  | * @param address The new address. | 
|  | * @param presentation The presentation requirements for the address. | 
|  | *        See {@link TelecomManager} for valid values. | 
|  | */ | 
|  | public final void setAddress(Uri address, int presentation) { | 
|  | checkImmutable(); | 
|  | Log.d(this, "setAddress %s", address); | 
|  | mAddress = address; | 
|  | mAddressPresentation = presentation; | 
|  | for (Listener l : mListeners) { | 
|  | l.onAddressChanged(this, address, presentation); | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Sets the caller display name (CNAP). | 
|  | * | 
|  | * @param callerDisplayName The new display name. | 
|  | * @param presentation The presentation requirements for the handle. | 
|  | *        See {@link TelecomManager} for valid values. | 
|  | */ | 
|  | public final void setCallerDisplayName(String callerDisplayName, int presentation) { | 
|  | checkImmutable(); | 
|  | Log.d(this, "setCallerDisplayName %s", callerDisplayName); | 
|  | mCallerDisplayName = callerDisplayName; | 
|  | mCallerDisplayNamePresentation = presentation; | 
|  | for (Listener l : mListeners) { | 
|  | l.onCallerDisplayNameChanged(this, callerDisplayName, presentation); | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Set the video state for the connection. | 
|  | * Valid values: {@link VideoProfile#STATE_AUDIO_ONLY}, | 
|  | * {@link VideoProfile#STATE_BIDIRECTIONAL}, | 
|  | * {@link VideoProfile#STATE_TX_ENABLED}, | 
|  | * {@link VideoProfile#STATE_RX_ENABLED}. | 
|  | * | 
|  | * @param videoState The new video state. | 
|  | */ | 
|  | public final void setVideoState(int videoState) { | 
|  | checkImmutable(); | 
|  | Log.d(this, "setVideoState %d", videoState); | 
|  | mVideoState = videoState; | 
|  | for (Listener l : mListeners) { | 
|  | l.onVideoStateChanged(this, mVideoState); | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Sets state to active (e.g., an ongoing connection where two or more parties can actively | 
|  | * communicate). | 
|  | */ | 
|  | public final void setActive() { | 
|  | checkImmutable(); | 
|  | setRingbackRequested(false); | 
|  | setState(STATE_ACTIVE); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Sets state to ringing (e.g., an inbound ringing connection). | 
|  | */ | 
|  | public final void setRinging() { | 
|  | checkImmutable(); | 
|  | setState(STATE_RINGING); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Sets state to initializing (this Connection is not yet ready to be used). | 
|  | */ | 
|  | public final void setInitializing() { | 
|  | checkImmutable(); | 
|  | setState(STATE_INITIALIZING); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Sets state to initialized (the Connection has been set up and is now ready to be used). | 
|  | */ | 
|  | public final void setInitialized() { | 
|  | checkImmutable(); | 
|  | setState(STATE_NEW); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Sets state to dialing (e.g., dialing an outbound connection). | 
|  | */ | 
|  | public final void setDialing() { | 
|  | checkImmutable(); | 
|  | setState(STATE_DIALING); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Sets state to be on hold. | 
|  | */ | 
|  | public final void setOnHold() { | 
|  | checkImmutable(); | 
|  | setState(STATE_HOLDING); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Sets the video connection provider. | 
|  | * @param videoProvider The video provider. | 
|  | */ | 
|  | public final void setVideoProvider(VideoProvider videoProvider) { | 
|  | checkImmutable(); | 
|  | mVideoProvider = videoProvider; | 
|  | for (Listener l : mListeners) { | 
|  | l.onVideoProviderChanged(this, videoProvider); | 
|  | } | 
|  | } | 
|  |  | 
|  | public final VideoProvider getVideoProvider() { | 
|  | return mVideoProvider; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Sets state to disconnected. | 
|  | * | 
|  | * @param disconnectCause The reason for the disconnection, as specified by | 
|  | *         {@link DisconnectCause}. | 
|  | */ | 
|  | public final void setDisconnected(DisconnectCause disconnectCause) { | 
|  | checkImmutable(); | 
|  | mDisconnectCause = disconnectCause; | 
|  | setState(STATE_DISCONNECTED); | 
|  | Log.d(this, "Disconnected with cause %s", disconnectCause); | 
|  | for (Listener l : mListeners) { | 
|  | l.onDisconnected(this, disconnectCause); | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Informs listeners that this {@code Connection} is in a post-dial wait state. This is done | 
|  | * when (a) the {@code Connection} is issuing a DTMF sequence; (b) it has encountered a "wait" | 
|  | * character; and (c) it wishes to inform the In-Call app that it is waiting for the end-user | 
|  | * to send an {@link #onPostDialContinue(boolean)} signal. | 
|  | * | 
|  | * @param remaining The DTMF character sequence remaining to be emitted once the | 
|  | *         {@link #onPostDialContinue(boolean)} is received, including any "wait" characters | 
|  | *         that remaining sequence may contain. | 
|  | */ | 
|  | public final void setPostDialWait(String remaining) { | 
|  | checkImmutable(); | 
|  | for (Listener l : mListeners) { | 
|  | l.onPostDialWait(this, remaining); | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Informs listeners that this {@code Connection} has processed a character in the post-dial | 
|  | * started state. This is done when (a) the {@code Connection} is issuing a DTMF sequence; | 
|  | * and (b) it wishes to signal Telecom to play the corresponding DTMF tone locally. | 
|  | * | 
|  | * @param nextChar The DTMF character that was just processed by the {@code Connection}. | 
|  | */ | 
|  | public final void setNextPostDialChar(char nextChar) { | 
|  | checkImmutable(); | 
|  | for (Listener l : mListeners) { | 
|  | l.onPostDialChar(this, nextChar); | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Requests that the framework play a ringback tone. This is to be invoked by implementations | 
|  | * that do not play a ringback tone themselves in the connection's audio stream. | 
|  | * | 
|  | * @param ringback Whether the ringback tone is to be played. | 
|  | */ | 
|  | public final void setRingbackRequested(boolean ringback) { | 
|  | checkImmutable(); | 
|  | if (mRingbackRequested != ringback) { | 
|  | mRingbackRequested = ringback; | 
|  | for (Listener l : mListeners) { | 
|  | l.onRingbackRequested(this, ringback); | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Sets the connection's capabilities as a bit mask of the {@code CAPABILITY_*} constants. | 
|  | * | 
|  | * @param connectionCapabilities The new connection capabilities. | 
|  | */ | 
|  | public final void setConnectionCapabilities(int connectionCapabilities) { | 
|  | checkImmutable(); | 
|  | if (mConnectionCapabilities != connectionCapabilities) { | 
|  | mConnectionCapabilities = connectionCapabilities; | 
|  | for (Listener l : mListeners) { | 
|  | l.onConnectionCapabilitiesChanged(this, mConnectionCapabilities); | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Tears down the Connection object. | 
|  | */ | 
|  | public final void destroy() { | 
|  | for (Listener l : mListeners) { | 
|  | l.onDestroyed(this); | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Requests that the framework use VOIP audio mode for this connection. | 
|  | * | 
|  | * @param isVoip True if the audio mode is VOIP. | 
|  | */ | 
|  | public final void setAudioModeIsVoip(boolean isVoip) { | 
|  | checkImmutable(); | 
|  | mAudioModeIsVoip = isVoip; | 
|  | for (Listener l : mListeners) { | 
|  | l.onAudioModeIsVoipChanged(this, isVoip); | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Sets the time at which a call became active on this Connection. This is set only | 
|  | * when a conference call becomes active on this connection. | 
|  | * | 
|  | * @param connectionTimeMillis The connection time, in milliseconds. | 
|  | * | 
|  | * @hide | 
|  | */ | 
|  | public final void setConnectTimeMillis(long connectTimeMillis) { | 
|  | mConnectTimeMillis = connectTimeMillis; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Sets the label and icon status to display in the in-call UI. | 
|  | * | 
|  | * @param statusHints The status label and icon to set. | 
|  | */ | 
|  | public final void setStatusHints(StatusHints statusHints) { | 
|  | checkImmutable(); | 
|  | mStatusHints = statusHints; | 
|  | for (Listener l : mListeners) { | 
|  | l.onStatusHintsChanged(this, statusHints); | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Sets the connections with which this connection can be conferenced. | 
|  | * | 
|  | * @param conferenceableConnections The set of connections this connection can conference with. | 
|  | */ | 
|  | public final void setConferenceableConnections(List<Connection> conferenceableConnections) { | 
|  | checkImmutable(); | 
|  | clearConferenceableList(); | 
|  | for (Connection c : conferenceableConnections) { | 
|  | // If statement checks for duplicates in input. It makes it N^2 but we're dealing with a | 
|  | // small amount of items here. | 
|  | if (!mConferenceables.contains(c)) { | 
|  | c.addConnectionListener(mConnectionDeathListener); | 
|  | mConferenceables.add(c); | 
|  | } | 
|  | } | 
|  | fireOnConferenceableConnectionsChanged(); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Similar to {@link #setConferenceableConnections(java.util.List)}, sets a list of connections | 
|  | * or conferences with which this connection can be conferenced. | 
|  | * | 
|  | * @param conferenceables The conferenceables. | 
|  | */ | 
|  | public final void setConferenceables(List<Conferenceable> conferenceables) { | 
|  | clearConferenceableList(); | 
|  | for (Conferenceable c : conferenceables) { | 
|  | // If statement checks for duplicates in input. It makes it N^2 but we're dealing with a | 
|  | // small amount of items here. | 
|  | if (!mConferenceables.contains(c)) { | 
|  | if (c instanceof Connection) { | 
|  | Connection connection = (Connection) c; | 
|  | connection.addConnectionListener(mConnectionDeathListener); | 
|  | } else if (c instanceof Conference) { | 
|  | Conference conference = (Conference) c; | 
|  | conference.addListener(mConferenceDeathListener); | 
|  | } | 
|  | mConferenceables.add(c); | 
|  | } | 
|  | } | 
|  | fireOnConferenceableConnectionsChanged(); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Returns the connections or conferences with which this connection can be conferenced. | 
|  | */ | 
|  | public final List<Conferenceable> getConferenceables() { | 
|  | return mUnmodifiableConferenceables; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * @hide | 
|  | */ | 
|  | public final void setConnectionService(ConnectionService connectionService) { | 
|  | checkImmutable(); | 
|  | if (mConnectionService != null) { | 
|  | Log.e(this, new Exception(), "Trying to set ConnectionService on a connection " + | 
|  | "which is already associated with another ConnectionService."); | 
|  | } else { | 
|  | mConnectionService = connectionService; | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * @hide | 
|  | */ | 
|  | public final void unsetConnectionService(ConnectionService connectionService) { | 
|  | if (mConnectionService != connectionService) { | 
|  | Log.e(this, new Exception(), "Trying to remove ConnectionService from a Connection " + | 
|  | "that does not belong to the ConnectionService."); | 
|  | } else { | 
|  | mConnectionService = null; | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * @hide | 
|  | */ | 
|  | public final ConnectionService getConnectionService() { | 
|  | return mConnectionService; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Sets the conference that this connection is a part of. This will fail if the connection is | 
|  | * already part of a conference. {@link #resetConference} to un-set the conference first. | 
|  | * | 
|  | * @param conference The conference. | 
|  | * @return {@code true} if the conference was successfully set. | 
|  | * @hide | 
|  | */ | 
|  | public final boolean setConference(Conference conference) { | 
|  | checkImmutable(); | 
|  | // We check to see if it is already part of another conference. | 
|  | if (mConference == null) { | 
|  | mConference = conference; | 
|  | if (mConnectionService != null && mConnectionService.containsConference(conference)) { | 
|  | fireConferenceChanged(); | 
|  | } | 
|  | return true; | 
|  | } | 
|  | return false; | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Resets the conference that this connection is a part of. | 
|  | * @hide | 
|  | */ | 
|  | public final void resetConference() { | 
|  | if (mConference != null) { | 
|  | Log.d(this, "Conference reset"); | 
|  | mConference = null; | 
|  | fireConferenceChanged(); | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Set some extras that can be associated with this {@code Connection}. No assumptions should | 
|  | * be made as to how an In-Call UI or service will handle these extras. | 
|  | * Keys should be fully qualified (e.g., com.example.MY_EXTRA) to avoid conflicts. | 
|  | * | 
|  | * @param extras The extras associated with this {@code Connection}. | 
|  | */ | 
|  | public final void setExtras(@Nullable Bundle extras) { | 
|  | checkImmutable(); | 
|  | mExtras = extras; | 
|  | for (Listener l : mListeners) { | 
|  | l.onExtrasChanged(this, extras); | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Notifies this Connection that the {@link #getAudioState()} property has a new value. | 
|  | * | 
|  | * @param state The new connection audio state. | 
|  | * @deprecated Use {@link #onCallAudioStateChanged(CallAudioState)} instead. | 
|  | * @hide | 
|  | */ | 
|  | @SystemApi | 
|  | @Deprecated | 
|  | public void onAudioStateChanged(AudioState state) {} | 
|  |  | 
|  | /** | 
|  | * Notifies this Connection that the {@link #getCallAudioState()} property has a new value. | 
|  | * | 
|  | * @param state The new connection audio state. | 
|  | */ | 
|  | public void onCallAudioStateChanged(CallAudioState state) {} | 
|  |  | 
|  | /** | 
|  | * Notifies this Connection of an internal state change. This method is called after the | 
|  | * state is changed. | 
|  | * | 
|  | * @param state The new state, one of the {@code STATE_*} constants. | 
|  | */ | 
|  | public void onStateChanged(int state) {} | 
|  |  | 
|  | /** | 
|  | * Notifies this Connection of a request to play a DTMF tone. | 
|  | * | 
|  | * @param c A DTMF character. | 
|  | */ | 
|  | public void onPlayDtmfTone(char c) {} | 
|  |  | 
|  | /** | 
|  | * Notifies this Connection of a request to stop any currently playing DTMF tones. | 
|  | */ | 
|  | public void onStopDtmfTone() {} | 
|  |  | 
|  | /** | 
|  | * Notifies this Connection of a request to disconnect. | 
|  | */ | 
|  | public void onDisconnect() {} | 
|  |  | 
|  | /** | 
|  | * Notifies this Connection of a request to disconnect a participant of the conference managed | 
|  | * by the connection. | 
|  | * | 
|  | * @param endpoint the {@link Uri} of the participant to disconnect. | 
|  | * @hide | 
|  | */ | 
|  | public void onDisconnectConferenceParticipant(Uri endpoint) {} | 
|  |  | 
|  | /** | 
|  | * Notifies this Connection of a request to separate from its parent conference. | 
|  | */ | 
|  | public void onSeparate() {} | 
|  |  | 
|  | /** | 
|  | * Notifies this Connection of a request to abort. | 
|  | */ | 
|  | public void onAbort() {} | 
|  |  | 
|  | /** | 
|  | * Notifies this Connection of a request to hold. | 
|  | */ | 
|  | public void onHold() {} | 
|  |  | 
|  | /** | 
|  | * Notifies this Connection of a request to exit a hold state. | 
|  | */ | 
|  | public void onUnhold() {} | 
|  |  | 
|  | /** | 
|  | * Notifies this Connection, which is in {@link #STATE_RINGING}, of | 
|  | * a request to accept. | 
|  | * | 
|  | * @param videoState The video state in which to answer the connection. | 
|  | */ | 
|  | public void onAnswer(int videoState) {} | 
|  |  | 
|  | /** | 
|  | * Notifies this Connection, which is in {@link #STATE_RINGING}, of | 
|  | * a request to accept. | 
|  | */ | 
|  | public void onAnswer() { | 
|  | onAnswer(VideoProfile.STATE_AUDIO_ONLY); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Notifies this Connection, which is in {@link #STATE_RINGING}, of | 
|  | * a request to reject. | 
|  | */ | 
|  | public void onReject() {} | 
|  |  | 
|  | /** | 
|  | * Notifies this Connection whether the user wishes to proceed with the post-dial DTMF codes. | 
|  | */ | 
|  | public void onPostDialContinue(boolean proceed) {} | 
|  |  | 
|  | static String toLogSafePhoneNumber(String number) { | 
|  | // For unknown number, log empty string. | 
|  | if (number == null) { | 
|  | return ""; | 
|  | } | 
|  |  | 
|  | if (PII_DEBUG) { | 
|  | // When PII_DEBUG is true we emit PII. | 
|  | return number; | 
|  | } | 
|  |  | 
|  | // Do exactly same thing as Uri#toSafeString() does, which will enable us to compare | 
|  | // sanitized phone numbers. | 
|  | StringBuilder builder = new StringBuilder(); | 
|  | for (int i = 0; i < number.length(); i++) { | 
|  | char c = number.charAt(i); | 
|  | if (c == '-' || c == '@' || c == '.') { | 
|  | builder.append(c); | 
|  | } else { | 
|  | builder.append('x'); | 
|  | } | 
|  | } | 
|  | return builder.toString(); | 
|  | } | 
|  |  | 
|  | private void setState(int state) { | 
|  | checkImmutable(); | 
|  | if (mState == STATE_DISCONNECTED && mState != state) { | 
|  | Log.d(this, "Connection already DISCONNECTED; cannot transition out of this state."); | 
|  | return; | 
|  | } | 
|  | if (mState != state) { | 
|  | Log.d(this, "setState: %s", stateToString(state)); | 
|  | mState = state; | 
|  | onStateChanged(state); | 
|  | for (Listener l : mListeners) { | 
|  | l.onStateChanged(this, state); | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | private static class FailureSignalingConnection extends Connection { | 
|  | private boolean mImmutable = false; | 
|  | public FailureSignalingConnection(DisconnectCause disconnectCause) { | 
|  | setDisconnected(disconnectCause); | 
|  | mImmutable = true; | 
|  | } | 
|  |  | 
|  | public void checkImmutable() { | 
|  | if (mImmutable) { | 
|  | throw new UnsupportedOperationException("Connection is immutable"); | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Return a {@code Connection} which represents a failed connection attempt. The returned | 
|  | * {@code Connection} will have a {@link android.telecom.DisconnectCause} and as specified, | 
|  | * and a {@link #getState()} of {@link #STATE_DISCONNECTED}. | 
|  | * <p> | 
|  | * The returned {@code Connection} can be assumed to {@link #destroy()} itself when appropriate, | 
|  | * so users of this method need not maintain a reference to its return value to destroy it. | 
|  | * | 
|  | * @param disconnectCause The disconnect cause, ({@see android.telecomm.DisconnectCause}). | 
|  | * @return A {@code Connection} which indicates failure. | 
|  | */ | 
|  | public static Connection createFailedConnection(DisconnectCause disconnectCause) { | 
|  | return new FailureSignalingConnection(disconnectCause); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Override to throw an {@link UnsupportedOperationException} if this {@code Connection} is | 
|  | * not intended to be mutated, e.g., if it is a marker for failure. Only for framework use; | 
|  | * this should never be un-@hide-den. | 
|  | * | 
|  | * @hide | 
|  | */ | 
|  | public void checkImmutable() {} | 
|  |  | 
|  | /** | 
|  | * Return a {@code Connection} which represents a canceled connection attempt. The returned | 
|  | * {@code Connection} will have state {@link #STATE_DISCONNECTED}, and cannot be moved out of | 
|  | * that state. This connection should not be used for anything, and no other | 
|  | * {@code Connection}s should be attempted. | 
|  | * <p> | 
|  | * so users of this method need not maintain a reference to its return value to destroy it. | 
|  | * | 
|  | * @return A {@code Connection} which indicates that the underlying connection should | 
|  | * be canceled. | 
|  | */ | 
|  | public static Connection createCanceledConnection() { | 
|  | return new FailureSignalingConnection(new DisconnectCause(DisconnectCause.CANCELED)); | 
|  | } | 
|  |  | 
|  | private final void fireOnConferenceableConnectionsChanged() { | 
|  | for (Listener l : mListeners) { | 
|  | l.onConferenceablesChanged(this, getConferenceables()); | 
|  | } | 
|  | } | 
|  |  | 
|  | private final void fireConferenceChanged() { | 
|  | for (Listener l : mListeners) { | 
|  | l.onConferenceChanged(this, mConference); | 
|  | } | 
|  | } | 
|  |  | 
|  | private final void clearConferenceableList() { | 
|  | for (Conferenceable c : mConferenceables) { | 
|  | if (c instanceof Connection) { | 
|  | Connection connection = (Connection) c; | 
|  | connection.removeConnectionListener(mConnectionDeathListener); | 
|  | } else if (c instanceof Conference) { | 
|  | Conference conference = (Conference) c; | 
|  | conference.removeListener(mConferenceDeathListener); | 
|  | } | 
|  | } | 
|  | mConferenceables.clear(); | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Notifies listeners that the merge request failed. | 
|  | * | 
|  | * @hide | 
|  | */ | 
|  | protected final void notifyConferenceMergeFailed() { | 
|  | for (Listener l : mListeners) { | 
|  | l.onConferenceMergeFailed(this); | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Notifies listeners of a change to conference participant(s). | 
|  | * | 
|  | * @param conferenceParticipants The participants. | 
|  | * @hide | 
|  | */ | 
|  | protected final void updateConferenceParticipants( | 
|  | List<ConferenceParticipant> conferenceParticipants) { | 
|  | for (Listener l : mListeners) { | 
|  | l.onConferenceParticipantsChanged(this, conferenceParticipants); | 
|  | } | 
|  | } | 
|  |  | 
|  | /** | 
|  | * Notifies listeners that a conference call has been started. | 
|  | * @hide | 
|  | */ | 
|  | protected void notifyConferenceStarted() { | 
|  | for (Listener l : mListeners) { | 
|  | l.onConferenceStarted(); | 
|  | } | 
|  | } | 
|  | } |