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      1 /*
      2  * Copyright (C) 2018 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 syntax = "proto2";
     18 package android.telecom;
     19 
     20 option java_outer_classname = "TelecomProtoEnums";
     21 option java_multiple_files = true;
     22 
     23 /**
     24  * Call states, primarily used in CallState.java,
     25  * Call.java, and CallsManager.java in packages/services.
     26  */
     27 enum CallStateEnum {
     28     /**
     29      * Indicates that a call is new and not connected. This is used as the default state internally
     30      * within Telecom and should not be used between Telecom and call services. Call services are
     31      * not expected to ever interact with NEW calls, but {@link android.telecom.InCallService}s will
     32      * see calls in this state.
     33      */
     34     NEW = 0;
     35 
     36     /**
     37      * The initial state of an outgoing {@code Call}.
     38      * Common transitions are to {@link #DIALING} state for a successful call or
     39      * {@link #DISCONNECTED} if it failed.
     40      */
     41     CONNECTING = 1;
     42 
     43     /**
     44      * The state of an outgoing {@code Call} when waiting on user to select a
     45      * {@link android.telecom.PhoneAccount} through which to place the call.
     46      */
     47     SELECT_PHONE_ACCOUNT = 2;
     48 
     49     /**
     50      * Indicates that a call is outgoing and in the dialing state. A call transitions to this state
     51      * once an outgoing call has begun (e.g., user presses the dial button in Dialer). Calls in this
     52      * state usually transition to {@link #ACTIVE} if the call was answered or {@link #DISCONNECTED}
     53      * if the call was disconnected somehow (e.g., failure or cancellation of the call by the user).
     54      */
     55     DIALING = 3;
     56 
     57     /**
     58      * Indicates that a call is incoming and the user still has the option of answering, rejecting,
     59      * or doing nothing with the call. This state is usually associated with some type of audible
     60      * ringtone. Normal transitions are to {@link #ACTIVE} if answered or {@link #DISCONNECTED}
     61      * otherwise.
     62      */
     63     RINGING = 4;
     64 
     65     /**
     66      * Indicates that a call is currently connected to another party and a communication channel is
     67      * open between them. The normal transition to this state is by the user answering a
     68      * {@link #DIALING} call or a {@link #RINGING} call being answered by the other party.
     69      */
     70     ACTIVE = 5;
     71 
     72     /**
     73      * Indicates that the call is currently on hold. In this state, the call is not terminated
     74      * but no communication is allowed until the call is no longer on hold. The typical transition
     75      * to this state is by the user putting an {@link #ACTIVE} call on hold by explicitly performing
     76      * an action, such as clicking the hold button.
     77      */
     78     ON_HOLD = 6;
     79 
     80     /**
     81      * Indicates that a call is currently disconnected. All states can transition to this state
     82      * by the call service giving notice that the connection has been severed. When the user
     83      * explicitly ends a call, it will not transition to this state until the call service confirms
     84      * the disconnection or communication was lost to the call service currently responsible for
     85      * this call (e.g., call service crashes).
     86      */
     87     DISCONNECTED = 7;
     88 
     89     /**
     90      * Indicates that the call was attempted (mostly in the context of outgoing, at least at the
     91      * time of writing) but cancelled before it was successfully connected.
     92      */
     93     ABORTED = 8;
     94 
     95     /**
     96      * Indicates that the call is in the process of being disconnected and will transition next
     97      * to a {@link #DISCONNECTED} state.
     98      * <p>
     99      * This state is not expected to be communicated from the Telephony layer, but will be reported
    100      * to the InCall UI for calls where disconnection has been initiated by the user but the
    101      * ConnectionService has confirmed the call as disconnected.
    102      */
    103     DISCONNECTING = 9;
    104 
    105     /**
    106      * Indicates that the call is in the process of being pulled to the local device.
    107      * <p>
    108      * This state should only be set on a call with
    109      * {@link android.telecom.Connection#PROPERTY_IS_EXTERNAL_CALL} and
    110      * {@link android.telecom.Connection#CAPABILITY_CAN_PULL_CALL}.
    111      */
    112     PULLING = 10;
    113 }
    114 
    115 // Disconnect causes for a call. Primarily used by android/telecom/DisconnectCause.java
    116 enum DisconnectCauseEnum {
    117     /**
    118      * Disconnected because of an unknown or unspecified reason.
    119      */
    120     UNKNOWN = 0;
    121 
    122     /**
    123      * Disconnected because there was an error, such as a problem with the network.
    124      */
    125     ERROR = 1;
    126 
    127     /**
    128      * Disconnected because of a local user-initiated action, such as hanging up.
    129      */
    130     LOCAL = 2;
    131 
    132     /**
    133      * Disconnected because of a remote user-initiated action, such as the other party hanging up
    134      * up.
    135      */
    136     REMOTE = 3;
    137 
    138     /**
    139      * Disconnected because it has been canceled.
    140      */
    141     CANCELED = 4;
    142 
    143     /**
    144      * Disconnected because there was no response to an incoming call.
    145      */
    146     MISSED = 5;
    147 
    148     /**
    149      * Disconnected because the user rejected an incoming call.
    150      */
    151     REJECTED = 6;
    152 
    153     /**
    154      * Disconnected because the other party was busy.
    155      */
    156     BUSY = 7;
    157 
    158     /**
    159      * Disconnected because of a restriction on placing the call, such as dialing in airplane
    160      * mode.
    161      */
    162     RESTRICTED = 8;
    163 
    164     /**
    165      * Disconnected for reason not described by other disconnect codes.
    166      */
    167     OTHER = 9;
    168 
    169     /**
    170      * Disconnected because the connection manager did not support the call. The call will be tried
    171      * again without a connection manager. See {@link PhoneAccount#CAPABILITY_CONNECTION_MANAGER}.
    172      */
    173     CONNECTION_MANAGER_NOT_SUPPORTED = 10;
    174 
    175     /**
    176      * Disconnected because the user did not locally answer the incoming call, but it was answered
    177      * on another device where the call was ringing.
    178      */
    179     ANSWERED_ELSEWHERE = 11;
    180 
    181     /**
    182      * Disconnected because the call was pulled from the current device to another device.
    183      */
    184     CALL_PULLED = 12;
    185 }
    186