| /* |
| * 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 com.android.services.telephony; |
| |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.telecom.Conference; |
| import android.telecom.Connection; |
| import android.telecom.PhoneAccountHandle; |
| |
| import com.android.internal.telephony.Call; |
| import com.android.internal.telephony.CallStateException; |
| import com.android.phone.PhoneGlobals; |
| import com.android.phone.common.R; |
| |
| import java.util.List; |
| |
| /** |
| * CDMA-based conference call. |
| */ |
| public class CdmaConference extends Conference { |
| private int mCapabilities; |
| |
| public CdmaConference(PhoneAccountHandle phoneAccount) { |
| super(phoneAccount); |
| setActive(); |
| } |
| |
| public void updateCapabilities(int capabilities) { |
| capabilities |= Connection.CAPABILITY_MUTE | Connection.CAPABILITY_GENERIC_CONFERENCE; |
| setCapabilities(capabilities); |
| } |
| |
| /** |
| * Invoked when the Conference and all it's {@link Connection}s should be disconnected. |
| */ |
| @Override |
| public void onDisconnect() { |
| Call call = getOriginalCall(); |
| if (call != null) { |
| Log.d(this, "Found multiparty call to hangup for conference."); |
| try { |
| call.hangup(); |
| } catch (CallStateException e) { |
| Log.e(this, e, "Exception thrown trying to hangup conference"); |
| } |
| } |
| } |
| |
| @Override |
| public void onSeparate(Connection connection) { |
| Log.e(this, new Exception(), "Separate not supported for CDMA conference call."); |
| } |
| |
| @Override |
| public void onHold() { |
| Log.e(this, new Exception(), "Hold not supported for CDMA conference call."); |
| } |
| |
| /** |
| * Invoked when the conference should be moved from hold to active. |
| */ |
| @Override |
| public void onUnhold() { |
| Log.e(this, new Exception(), "Unhold not supported for CDMA conference call."); |
| } |
| |
| @Override |
| public void onMerge() { |
| Log.i(this, "Merging CDMA conference call."); |
| // Can only merge once |
| mCapabilities &= ~Connection.CAPABILITY_MERGE_CONFERENCE; |
| // Once merged, swap is enabled. |
| if (isSwapSupportedAfterMerge()){ |
| mCapabilities |= Connection.CAPABILITY_SWAP_CONFERENCE; |
| } |
| updateCapabilities(mCapabilities); |
| sendFlash(); |
| } |
| |
| @Override |
| public void onPlayDtmfTone(char c) { |
| final CdmaConnection connection = getFirstConnection(); |
| if (connection != null) { |
| connection.onPlayDtmfTone(c); |
| } else { |
| Log.w(this, "No CDMA connection found while trying to play dtmf tone."); |
| } |
| } |
| |
| @Override |
| public void onStopDtmfTone() { |
| final CdmaConnection connection = getFirstConnection(); |
| if (connection != null) { |
| connection.onStopDtmfTone(); |
| } else { |
| Log.w(this, "No CDMA connection found while trying to stop dtmf tone."); |
| } |
| } |
| |
| @Override |
| public void onSwap() { |
| Log.i(this, "Swapping CDMA conference call."); |
| sendFlash(); |
| } |
| |
| private void sendFlash() { |
| Call call = getOriginalCall(); |
| if (call != null) { |
| try { |
| // For CDMA calls, this just sends a flash command. |
| call.getPhone().switchHoldingAndActive(); |
| } catch (CallStateException e) { |
| Log.e(this, e, "Error while trying to send flash command."); |
| } |
| } |
| } |
| |
| private Call getMultipartyCallForConnection(Connection connection) { |
| com.android.internal.telephony.Connection radioConnection = |
| getOriginalConnection(connection); |
| if (radioConnection != null) { |
| Call call = radioConnection.getCall(); |
| if (call != null && call.isMultiparty()) { |
| return call; |
| } |
| } |
| return null; |
| } |
| |
| private Call getOriginalCall() { |
| List<Connection> connections = getConnections(); |
| if (!connections.isEmpty()) { |
| com.android.internal.telephony.Connection originalConnection = |
| getOriginalConnection(connections.get(0)); |
| if (originalConnection != null) { |
| return originalConnection.getCall(); |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Return whether network support swap after merge conference call. |
| * |
| * @return true to support, false not support. |
| */ |
| private final boolean isSwapSupportedAfterMerge() |
| { |
| boolean supportSwapAfterMerge = true; |
| Context context = PhoneGlobals.getInstance(); |
| |
| if (context != null) { |
| Resources r = context.getResources(); |
| if (r != null) { |
| supportSwapAfterMerge = r.getBoolean(R.bool.support_swap_after_merge); |
| Log.d(this, "Current network support swap after call merged capability is " |
| + supportSwapAfterMerge); |
| } |
| } |
| return supportSwapAfterMerge; |
| } |
| |
| private com.android.internal.telephony.Connection getOriginalConnection(Connection connection) { |
| if (connection instanceof CdmaConnection) { |
| return ((CdmaConnection) connection).getOriginalConnection(); |
| } else { |
| Log.e(this, null, "Non CDMA connection found in a CDMA conference"); |
| return null; |
| } |
| } |
| |
| private CdmaConnection getFirstConnection() { |
| final List<Connection> connections = getConnections(); |
| if (connections.isEmpty()) { |
| return null; |
| } |
| return (CdmaConnection) connections.get(0); |
| } |
| } |