1 /* 2 * Copyright (C) 2006 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 package com.android.internal.telephony.gsm; 18 19 import com.android.internal.telephony.Call; 20 import com.android.internal.telephony.CallStateException; 21 import com.android.internal.telephony.Connection; 22 import com.android.internal.telephony.DriverCall; 23 import com.android.internal.telephony.Phone; 24 25 import java.util.ArrayList; 26 import java.util.List; 27 28 /** 29 * {@hide} 30 */ 31 class GsmCall extends Call { 32 /*************************** Instance Variables **************************/ 33 34 /*package*/ ArrayList<Connection> connections = new ArrayList<Connection>(); 35 /*package*/ GsmCallTracker owner; 36 37 38 /***************************** Class Methods *****************************/ 39 40 static State 41 stateFromDCState (DriverCall.State dcState) { 42 switch (dcState) { 43 case ACTIVE: return State.ACTIVE; 44 case HOLDING: return State.HOLDING; 45 case DIALING: return State.DIALING; 46 case ALERTING: return State.ALERTING; 47 case INCOMING: return State.INCOMING; 48 case WAITING: return State.WAITING; 49 default: throw new RuntimeException ("illegal call state:" + dcState); 50 } 51 } 52 53 54 /****************************** Constructors *****************************/ 55 /*package*/ 56 GsmCall (GsmCallTracker owner) { 57 this.owner = owner; 58 } 59 60 public void dispose() { 61 } 62 63 /************************** Overridden from Call *************************/ 64 65 public List<Connection> 66 getConnections() { 67 // FIXME should return Collections.unmodifiableList(); 68 return connections; 69 } 70 71 public Phone 72 getPhone() { 73 return owner.phone; 74 } 75 76 public boolean 77 isMultiparty() { 78 return connections.size() > 1; 79 } 80 81 /** Please note: if this is the foreground call and a 82 * background call exists, the background call will be resumed 83 * because an AT+CHLD=1 will be sent 84 */ 85 public void 86 hangup() throws CallStateException { 87 owner.hangup(this); 88 } 89 90 public String 91 toString() { 92 return state.toString(); 93 } 94 95 //***** Called from GsmConnection 96 97 /*package*/ void 98 attach(Connection conn, DriverCall dc) { 99 connections.add(conn); 100 101 state = stateFromDCState (dc.state); 102 } 103 104 /*package*/ void 105 attachFake(Connection conn, State state) { 106 connections.add(conn); 107 108 this.state = state; 109 } 110 111 /** 112 * Called by GsmConnection when it has disconnected 113 */ 114 void 115 connectionDisconnected(GsmConnection conn) { 116 if (state != State.DISCONNECTED) { 117 /* If only disconnected connections remain, we are disconnected*/ 118 119 boolean hasOnlyDisconnectedConnections = true; 120 121 for (int i = 0, s = connections.size() ; i < s; i ++) { 122 if (connections.get(i).getState() 123 != State.DISCONNECTED 124 ) { 125 hasOnlyDisconnectedConnections = false; 126 break; 127 } 128 } 129 130 if (hasOnlyDisconnectedConnections) { 131 state = State.DISCONNECTED; 132 } 133 } 134 } 135 136 137 /*package*/ void 138 detach(GsmConnection conn) { 139 connections.remove(conn); 140 141 if (connections.size() == 0) { 142 state = State.IDLE; 143 } 144 } 145 146 /*package*/ boolean 147 update (GsmConnection conn, DriverCall dc) { 148 State newState; 149 boolean changed = false; 150 151 newState = stateFromDCState(dc.state); 152 153 if (newState != state) { 154 state = newState; 155 changed = true; 156 } 157 158 return changed; 159 } 160 161 /** 162 * @return true if there's no space in this call for additional 163 * connections to be added via "conference" 164 */ 165 /*package*/ boolean 166 isFull() { 167 return connections.size() == GsmCallTracker.MAX_CONNECTIONS_PER_CALL; 168 } 169 170 //***** Called from GsmCallTracker 171 172 173 /** 174 * Called when this Call is being hung up locally (eg, user pressed "end") 175 * Note that at this point, the hangup request has been dispatched to the radio 176 * but no response has yet been received so update() has not yet been called 177 */ 178 void 179 onHangupLocal() { 180 for (int i = 0, s = connections.size() 181 ; i < s; i++ 182 ) { 183 GsmConnection cn = (GsmConnection)connections.get(i); 184 185 cn.onHangupLocal(); 186 } 187 state = State.DISCONNECTING; 188 } 189 190 /** 191 * Called when it's time to clean up disconnected Connection objects 192 */ 193 void 194 clearDisconnected() { 195 for (int i = connections.size() - 1 ; i >= 0 ; i--) { 196 GsmConnection cn = (GsmConnection)connections.get(i); 197 198 if (cn.getState() == State.DISCONNECTED) { 199 connections.remove(i); 200 } 201 } 202 203 if (connections.size() == 0) { 204 state = State.IDLE; 205 } 206 } 207 } 208 209
