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 //TODO 74 return null; 75 } 76 77 public boolean 78 isMultiparty() { 79 return connections.size() > 1; 80 } 81 82 /** Please note: if this is the foreground call and a 83 * background call exists, the background call will be resumed 84 * because an AT+CHLD=1 will be sent 85 */ 86 public void 87 hangup() throws CallStateException { 88 owner.hangup(this); 89 } 90 91 public String 92 toString() { 93 return state.toString(); 94 } 95 96 //***** Called from GsmConnection 97 98 /*package*/ void 99 attach(Connection conn, DriverCall dc) { 100 connections.add(conn); 101 102 state = stateFromDCState (dc.state); 103 } 104 105 /*package*/ void 106 attachFake(Connection conn, State state) { 107 connections.add(conn); 108 109 this.state = state; 110 } 111 112 /** 113 * Called by GsmConnection when it has disconnected 114 */ 115 void 116 connectionDisconnected(GsmConnection conn) { 117 if (state != State.DISCONNECTED) { 118 /* If only disconnected connections remain, we are disconnected*/ 119 120 boolean hasOnlyDisconnectedConnections = true; 121 122 for (int i = 0, s = connections.size() ; i < s; i ++) { 123 if (connections.get(i).getState() 124 != State.DISCONNECTED 125 ) { 126 hasOnlyDisconnectedConnections = false; 127 break; 128 } 129 } 130 131 if (hasOnlyDisconnectedConnections) { 132 state = State.DISCONNECTED; 133 } 134 } 135 } 136 137 138 /*package*/ void 139 detach(GsmConnection conn) { 140 connections.remove(conn); 141 142 if (connections.size() == 0) { 143 state = State.IDLE; 144 } 145 } 146 147 /*package*/ boolean 148 update (GsmConnection conn, DriverCall dc) { 149 State newState; 150 boolean changed = false; 151 152 newState = stateFromDCState(dc.state); 153 154 if (newState != state) { 155 state = newState; 156 changed = true; 157 } 158 159 return changed; 160 } 161 162 /** 163 * @return true if there's no space in this call for additional 164 * connections to be added via "conference" 165 */ 166 /*package*/ boolean 167 isFull() { 168 return connections.size() == GsmCallTracker.MAX_CONNECTIONS_PER_CALL; 169 } 170 171 //***** Called from GsmCallTracker 172 173 174 /** 175 * Called when this Call is being hung up locally (eg, user pressed "end") 176 * Note that at this point, the hangup request has been dispatched to the radio 177 * but no response has yet been received so update() has not yet been called 178 */ 179 void 180 onHangupLocal() { 181 for (int i = 0, s = connections.size() 182 ; i < s; i++ 183 ) { 184 GsmConnection cn = (GsmConnection)connections.get(i); 185 186 cn.onHangupLocal(); 187 } 188 state = State.DISCONNECTING; 189 } 190 191 /** 192 * Called when it's time to clean up disconnected Connection objects 193 */ 194 void 195 clearDisconnected() { 196 for (int i = connections.size() - 1 ; i >= 0 ; i--) { 197 GsmConnection cn = (GsmConnection)connections.get(i); 198 199 if (cn.getState() == State.DISCONNECTED) { 200 connections.remove(i); 201 } 202 } 203 204 if (connections.size() == 0) { 205 state = State.IDLE; 206 } 207 } 208 } 209 210
