blob: 89357665ee35bf48a8ce266eded29bcf942a925a [file] [log] [blame]
/*
* Copyright (C) 2013 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.telecomm;
import android.net.Uri;
import android.os.Bundle;
import android.telecomm.AudioState;
import android.telecomm.CallState;
import android.telecomm.GatewayInfo;
import android.telecomm.ParcelableConference;
import android.telecomm.PhoneAccountHandle;
import android.telephony.DisconnectCause;
import com.google.common.collect.ImmutableCollection;
import com.google.common.collect.ImmutableList;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
/**
* Singleton.
*
* NOTE: by design most APIs are package private, use the relevant adapter/s to allow
* access from other packages specifically refraining from passing the CallsManager instance
* beyond the com.android.telecomm package boundary.
*/
public final class CallsManager extends Call.ListenerBase {
// TODO: Consider renaming this CallsManagerPlugin.
interface CallsManagerListener {
void onCallAdded(Call call);
void onCallRemoved(Call call);
void onCallStateChanged(Call call, int oldState, int newState);
void onConnectionServiceChanged(
Call call,
ConnectionServiceWrapper oldService,
ConnectionServiceWrapper newService);
void onIncomingCallAnswered(Call call);
void onIncomingCallRejected(Call call, boolean rejectWithMessage, String textMessage);
void onForegroundCallChanged(Call oldForegroundCall, Call newForegroundCall);
void onAudioStateChanged(AudioState oldAudioState, AudioState newAudioState);
void onRequestingRingback(Call call, boolean ringback);
void onIsConferencedChanged(Call call);
void onAudioModeIsVoipChanged(Call call);
void onVideoStateChanged(Call call);
}
private static final CallsManager INSTANCE = new CallsManager();
/**
* The main call repository. Keeps an instance of all live calls. New incoming and outgoing
* calls are added to the map and removed when the calls move to the disconnected state.
*
* 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<Call> mCalls = Collections.newSetFromMap(
new ConcurrentHashMap<Call, Boolean>(8, 0.9f, 1));
private final ConnectionServiceRepository mConnectionServiceRepository =
new ConnectionServiceRepository();
private final DtmfLocalTonePlayer mDtmfLocalTonePlayer = new DtmfLocalTonePlayer();
private final InCallController mInCallController = new InCallController();
private final CallAudioManager mCallAudioManager;
private final Ringer mRinger;
// For this set initial table size to 16 because we add 13 listeners in
// the CallsManager constructor.
private final Set<CallsManagerListener> mListeners = Collections.newSetFromMap(
new ConcurrentHashMap<CallsManagerListener, Boolean>(16, 0.9f, 1));
private final HeadsetMediaButton mHeadsetMediaButton;
private final WiredHeadsetManager mWiredHeadsetManager;
private final TtyManager mTtyManager;
private final ProximitySensorManager mProximitySensorManager;
/**
* The call the user is currently interacting with. This is the call that should have audio
* focus and be visible in the in-call UI.
*/
private Call mForegroundCall;
/** Singleton accessor. */
static CallsManager getInstance() {
return INSTANCE;
}
/**
* Initializes the required Telecomm components.
*/
private CallsManager() {
TelecommApp app = TelecommApp.getInstance();
StatusBarNotifier statusBarNotifier = new StatusBarNotifier(app, this);
mWiredHeadsetManager = new WiredHeadsetManager(app);
mCallAudioManager = new CallAudioManager(app, statusBarNotifier, mWiredHeadsetManager);
InCallTonePlayer.Factory playerFactory = new InCallTonePlayer.Factory(mCallAudioManager);
mRinger = new Ringer(mCallAudioManager, this, playerFactory, app);
mHeadsetMediaButton = new HeadsetMediaButton(app, this);
mTtyManager = new TtyManager(app, mWiredHeadsetManager);
mProximitySensorManager = new ProximitySensorManager(app);
mListeners.add(statusBarNotifier);
mListeners.add(new CallLogManager(app));
mListeners.add(new PhoneStateBroadcaster());
mListeners.add(mInCallController);
mListeners.add(mRinger);
mListeners.add(new RingbackPlayer(this, playerFactory));
mListeners.add(new InCallToneMonitor(playerFactory, this));
mListeners.add(mCallAudioManager);
mListeners.add(app.getMissedCallNotifier());
mListeners.add(mDtmfLocalTonePlayer);
mListeners.add(mHeadsetMediaButton);
mListeners.add(RespondViaSmsManager.getInstance());
mListeners.add(mProximitySensorManager);
}
@Override
public void onSuccessfulOutgoingCall(Call call, int callState) {
Log.v(this, "onSuccessfulOutgoingCall, %s", call);
setCallState(call, callState);
if (!mCalls.contains(call)) {
// Call was not added previously in startOutgoingCall due to it being a potential MMI
// code, so add it now.
addCall(call);
}
// The call's ConnectionService has been updated.
for (CallsManagerListener listener : mListeners) {
listener.onConnectionServiceChanged(call, null, call.getConnectionService());
}
markCallAsDialing(call);
}
@Override
public void onFailedOutgoingCall(Call call, int errorCode, String errorMsg) {
Log.v(this, "onFailedOutgoingCall, call: %s", call);
// TODO: Replace disconnect cause with more specific disconnect causes.
markCallAsDisconnected(call, errorCode, errorMsg);
}
@Override
public void onSuccessfulIncomingCall(Call call) {
Log.d(this, "onSuccessfulIncomingCall");
setCallState(call, CallState.RINGING);
addCall(call);
}
@Override
public void onFailedIncomingCall(Call call) {
setCallState(call, CallState.DISCONNECTED);
call.removeListener(this);
}
@Override
public void onRequestingRingback(Call call, boolean ringback) {
for (CallsManagerListener listener : mListeners) {
listener.onRequestingRingback(call, ringback);
}
}
@Override
public void onPostDialWait(Call call, String remaining) {
mInCallController.onPostDialWait(call, remaining);
}
@Override
public void onParentChanged(Call call) {
for (CallsManagerListener listener : mListeners) {
listener.onIsConferencedChanged(call);
}
}
@Override
public void onChildrenChanged(Call call) {
for (CallsManagerListener listener : mListeners) {
listener.onIsConferencedChanged(call);
}
}
@Override
public void onAudioModeIsVoipChanged(Call call) {
for (CallsManagerListener listener : mListeners) {
listener.onAudioModeIsVoipChanged(call);
}
}
@Override
public void onVideoStateChanged(Call call) {
for (CallsManagerListener listener : mListeners) {
listener.onVideoStateChanged(call);
}
}
ImmutableCollection<Call> getCalls() {
return ImmutableList.copyOf(mCalls);
}
Call getForegroundCall() {
return mForegroundCall;
}
Ringer getRinger() {
return mRinger;
}
InCallController getInCallController() {
return mInCallController;
}
boolean hasEmergencyCall() {
for (Call call : mCalls) {
if (call.isEmergencyCall()) {
return true;
}
}
return false;
}
AudioState getAudioState() {
return mCallAudioManager.getAudioState();
}
boolean isTtySupported() {
return mTtyManager.isTtySupported();
}
int getCurrentTtyMode() {
return mTtyManager.getCurrentTtyMode();
}
/**
* Starts the process to attach the call to a connection service.
*
* @param phoneAccountHandle The phone account which contains the component name of the
* connection service to use for this call.
* @param extras The optional extras Bundle passed with the intent used for the incoming call.
*/
void processIncomingCallIntent(PhoneAccountHandle phoneAccountHandle, Bundle extras) {
Log.d(this, "processIncomingCallIntent");
// Create a call with no handle. The handle is eventually set when the call is attached
// to a connection service.
Call call = new Call(
mConnectionServiceRepository,
null /* handle */,
null /* gatewayInfo */,
null /* connectionManagerPhoneAccount */,
phoneAccountHandle,
true /* isIncoming */,
false /* isConference */);
call.setExtras(extras);
// TODO: Move this to be a part of addCall()
call.addListener(this);
call.startCreateConnection();
}
/**
* Kicks off the first steps to creating an outgoing call so that InCallUI can launch.
*
* NOTE: emergency calls will never pass through this because they call
* placeOutgoingCall directly.
*
* @param handle Handle to connect the call with.
* @param phoneAccountHandle The phone account which contains the component name of the
* connection service to use for this call.
* @param extras The optional extras Bundle passed with the intent used for the incoming call.
*/
Call startOutgoingCall(Uri handle, PhoneAccountHandle phoneAccountHandle, Bundle extras) {
// We only allow a single outgoing call at any given time. Before placing a call, make sure
// there doesn't already exist another outgoing call.
Call call = getFirstCallWithState(CallState.NEW, CallState.DIALING);
if (call != null) {
Log.i(this, "Canceling simultaneous outgoing call.");
return null;
}
TelecommApp app = TelecommApp.getInstance();
// Only dial with the requested phoneAccount if it is still valid. Otherwise treat this call
// as if a phoneAccount was not specified (does the default behavior instead).
if (phoneAccountHandle != null) {
List<PhoneAccountHandle> enabledAccounts =
app.getPhoneAccountRegistrar().getOutgoingPhoneAccounts();
if (!enabledAccounts.contains(phoneAccountHandle)) {
phoneAccountHandle = null;
}
}
if (phoneAccountHandle == null) {
// No preset account, check if default exists
PhoneAccountHandle defaultAccountHandle =
app.getPhoneAccountRegistrar().getDefaultOutgoingPhoneAccount();
if (defaultAccountHandle != null) {
phoneAccountHandle = defaultAccountHandle;
}
}
// Create a call with original handle. The handle may be changed when the call is attached
// to a connection service, but in most cases will remain the same.
call = new Call(
mConnectionServiceRepository,
handle,
null /* gatewayInfo */,
null /* connectionManagerPhoneAccount */,
phoneAccountHandle,
false /* isIncoming */,
false /* isConference */);
call.setExtras(extras);
final boolean emergencyCall = TelephonyUtil.shouldProcessAsEmergency(app, call.getHandle());
if (phoneAccountHandle == null && !emergencyCall) {
// This is the state where the user is expected to select an account
call.setState(CallState.PRE_DIAL_WAIT);
} else {
call.setState(CallState.CONNECTING);
}
if (!isPotentialMMICode(handle)) {
addCall(call);
} else {
call.addListener(this);
}
return call;
}
/**
* Attempts to issue/connect the specified call.
*
* @param handle Handle to connect the call with.
* @param gatewayInfo Optional gateway information that can be used to route the call to the
* actual dialed handle via a gateway provider. May be null.
* @param speakerphoneOn Whether or not to turn the speakerphone on once the call connects.
* @param videoState The desired video state for the outgoing call.
*/
void placeOutgoingCall(Call call, Uri handle, GatewayInfo gatewayInfo, boolean speakerphoneOn,
int videoState) {
if (call == null) {
// don't do anything if the call no longer exists
Log.i(this, "Canceling unknown call.");
return;
}
final Uri uriHandle = (gatewayInfo == null) ? handle : gatewayInfo.getGatewayHandle();
if (gatewayInfo == null) {
Log.i(this, "Creating a new outgoing call with handle: %s", Log.piiHandle(uriHandle));
} else {
Log.i(this, "Creating a new outgoing call with gateway handle: %s, original handle: %s",
Log.pii(uriHandle), Log.pii(handle));
}
call.setHandle(uriHandle);
call.setGatewayInfo(gatewayInfo);
call.setStartWithSpeakerphoneOn(speakerphoneOn);
call.setVideoState(videoState);
TelecommApp app = TelecommApp.getInstance();
final boolean emergencyCall = TelephonyUtil.shouldProcessAsEmergency(app, call.getHandle());
if (emergencyCall) {
// Emergency -- CreateConnectionProcessor will choose accounts automatically
call.setTargetPhoneAccount(null);
}
if (call.getTargetPhoneAccount() != null || emergencyCall) {
// If the account has been set, proceed to place the outgoing call.
// Otherwise the connection will be initiated when the account is set by the user.
call.startCreateConnection();
}
}
/**
* Attempts to start a conference call for the specified call.
*
* @param call The call to conference.
* @param otherCall The other call to conference with.
*/
void conference(Call call, Call otherCall) {
call.conferenceWith(otherCall);
}
/**
* Instructs Telecomm to answer the specified call. Intended to be invoked by the in-call
* app through {@link InCallAdapter} after Telecomm notifies it of an incoming call followed by
* the user opting to answer said call.
*
* @param call The call to answer.
* @param videoState The video state in which to answer the call.
*/
void answerCall(Call call, int videoState) {
if (!mCalls.contains(call)) {
Log.i(this, "Request to answer a non-existent call %s", call);
} else {
// If the foreground call is not the ringing call and it is currently isActive() or
// STATE_DIALING, put it on hold before answering the call.
if (mForegroundCall != null && mForegroundCall != call &&
(mForegroundCall.isActive() ||
mForegroundCall.getState() == CallState.DIALING)) {
Log.v(this, "Holding active/dialing call %s before answering incoming call %s.",
mForegroundCall, call);
mForegroundCall.hold();
// TODO: Wait until we get confirmation of the active call being
// on-hold before answering the new call.
// TODO: Import logic from CallManager.acceptCall()
}
for (CallsManagerListener listener : mListeners) {
listener.onIncomingCallAnswered(call);
}
// We do not update the UI until we get confirmation of the answer() through
// {@link #markCallAsActive}.
call.answer(videoState);
}
}
/**
* Instructs Telecomm to reject the specified call. Intended to be invoked by the in-call
* app through {@link InCallAdapter} after Telecomm notifies it of an incoming call followed by
* the user opting to reject said call.
*/
void rejectCall(Call call, boolean rejectWithMessage, String textMessage) {
if (!mCalls.contains(call)) {
Log.i(this, "Request to reject a non-existent call %s", call);
} else {
for (CallsManagerListener listener : mListeners) {
listener.onIncomingCallRejected(call, rejectWithMessage, textMessage);
}
call.reject(rejectWithMessage, textMessage);
}
}
/**
* Instructs Telecomm to play the specified DTMF tone within the specified call.
*
* @param digit The DTMF digit to play.
*/
void playDtmfTone(Call call, char digit) {
if (!mCalls.contains(call)) {
Log.i(this, "Request to play DTMF in a non-existent call %s", call);
} else {
call.playDtmfTone(digit);
mDtmfLocalTonePlayer.playTone(call, digit);
}
}
/**
* Instructs Telecomm to stop the currently playing DTMF tone, if any.
*/
void stopDtmfTone(Call call) {
if (!mCalls.contains(call)) {
Log.i(this, "Request to stop DTMF in a non-existent call %s", call);
} else {
call.stopDtmfTone();
mDtmfLocalTonePlayer.stopTone(call);
}
}
/**
* Instructs Telecomm to continue (or not) the current post-dial DTMF string, if any.
*/
void postDialContinue(Call call, boolean proceed) {
if (!mCalls.contains(call)) {
Log.i(this, "Request to continue post-dial string in a non-existent call %s", call);
} else {
call.postDialContinue(proceed);
}
}
/**
* Instructs Telecomm to disconnect the specified call. Intended to be invoked by the
* in-call app through {@link InCallAdapter} for an ongoing call. This is usually triggered by
* the user hitting the end-call button.
*/
void disconnectCall(Call call) {
Log.v(this, "disconnectCall %s", call);
if (!mCalls.contains(call)) {
Log.w(this, "Unknown call (%s) asked to disconnect", call);
} else {
call.disconnect();
}
}
/**
* Instructs Telecomm to disconnect all calls.
*/
void disconnectAllCalls() {
Log.v(this, "disconnectAllCalls");
for (Call call : mCalls) {
disconnectCall(call);
}
}
/**
* Instructs Telecomm to put the specified call on hold. Intended to be invoked by the
* in-call app through {@link InCallAdapter} for an ongoing call. This is usually triggered by
* the user hitting the hold button during an active call.
*/
void holdCall(Call call) {
if (!mCalls.contains(call)) {
Log.w(this, "Unknown call (%s) asked to be put on hold", call);
} else {
Log.d(this, "Putting call on hold: (%s)", call);
call.hold();
}
}
/**
* Instructs Telecomm to release the specified call from hold. Intended to be invoked by
* the in-call app through {@link InCallAdapter} for an ongoing call. This is usually triggered
* by the user hitting the hold button during a held call.
*/
void unholdCall(Call call) {
if (!mCalls.contains(call)) {
Log.w(this, "Unknown call (%s) asked to be removed from hold", call);
} else {
Log.d(this, "unholding call: (%s)", call);
for (Call c : mCalls) {
if (c != null && c.isAlive() && c != call) {
c.hold();
}
}
call.unhold();
}
}
/** Called by the in-call UI to change the mute state. */
void mute(boolean shouldMute) {
mCallAudioManager.mute(shouldMute);
}
/**
* Called by the in-call UI to change the audio route, for example to change from earpiece to
* speaker phone.
*/
void setAudioRoute(int route) {
mCallAudioManager.setAudioRoute(route);
}
/** Called by the in-call UI to turn the proximity sensor on. */
void turnOnProximitySensor() {
mProximitySensorManager.turnOn();
}
/**
* Called by the in-call UI to turn the proximity sensor off.
* @param screenOnImmediately If true, the screen will be turned on immediately. Otherwise,
* the screen will be kept off until the proximity sensor goes negative.
*/
void turnOffProximitySensor(boolean screenOnImmediately) {
mProximitySensorManager.turnOff(screenOnImmediately);
}
void phoneAccountClicked(Call call) {
if (!mCalls.contains(call)) {
Log.i(this, "phoneAccountClicked in a non-existent call %s", call);
} else {
call.phoneAccountClicked();
}
}
void phoneAccountSelected(Call call, PhoneAccountHandle account) {
if (!mCalls.contains(call)) {
Log.i(this, "Attemped to add account to unknown call %s", call);
} else {
call.setTargetPhoneAccount(account);
call.startCreateConnection();
}
}
/** Called when the audio state changes. */
void onAudioStateChanged(AudioState oldAudioState, AudioState newAudioState) {
Log.v(this, "onAudioStateChanged, audioState: %s -> %s", oldAudioState, newAudioState);
for (CallsManagerListener listener : mListeners) {
listener.onAudioStateChanged(oldAudioState, newAudioState);
}
}
void markCallAsRinging(Call call) {
setCallState(call, CallState.RINGING);
}
void markCallAsDialing(Call call) {
setCallState(call, CallState.DIALING);
}
void markCallAsActive(Call call) {
if (call.getConnectTimeMillis() == 0) {
call.setConnectTimeMillis(System.currentTimeMillis());
}
setCallState(call, CallState.ACTIVE);
if (call.getStartWithSpeakerphoneOn()) {
setAudioRoute(AudioState.ROUTE_SPEAKER);
}
}
void markCallAsOnHold(Call call) {
setCallState(call, CallState.ON_HOLD);
}
/**
* Marks the specified call as STATE_DISCONNECTED and notifies the in-call app. If this was the last
* live call, then also disconnect from the in-call controller.
*
* @param disconnectCause The disconnect reason, see {@link android.telephony.DisconnectCause}.
* @param disconnectMessage Optional message about the disconnect.
*/
void markCallAsDisconnected(Call call, int disconnectCause, String disconnectMessage) {
call.setDisconnectCause(disconnectCause, disconnectMessage);
setCallState(call, CallState.DISCONNECTED);
removeCall(call);
}
/**
* Removes an existing disconnected call, and notifies the in-call app.
*/
void markCallAsRemoved(Call call) {
removeCall(call);
}
/**
* Cleans up any calls currently associated with the specified connection service when the
* service binder disconnects unexpectedly.
*
* @param service The connection service that disconnected.
*/
void handleConnectionServiceDeath(ConnectionServiceWrapper service) {
if (service != null) {
for (Call call : mCalls) {
if (call.getConnectionService() == service) {
markCallAsDisconnected(call, DisconnectCause.ERROR_UNSPECIFIED, null);
}
}
}
}
boolean hasAnyCalls() {
return !mCalls.isEmpty();
}
boolean hasActiveOrHoldingCall() {
return getFirstCallWithState(CallState.ACTIVE, CallState.ON_HOLD) != null;
}
boolean hasRingingCall() {
return getFirstCallWithState(CallState.RINGING) != null;
}
boolean onMediaButton(int type) {
if (hasAnyCalls()) {
if (HeadsetMediaButton.SHORT_PRESS == type) {
Call ringingCall = getFirstCallWithState(CallState.RINGING);
if (ringingCall == null) {
mCallAudioManager.toggleMute();
return true;
} else {
ringingCall.answer(ringingCall.getVideoState());
return true;
}
} else if (HeadsetMediaButton.LONG_PRESS == type) {
Log.d(this, "handleHeadsetHook: longpress -> hangup");
Call callToHangup = getFirstCallWithState(
CallState.RINGING, CallState.DIALING, CallState.ACTIVE, CallState.ON_HOLD);
if (callToHangup != null) {
callToHangup.disconnect();
return true;
}
}
}
return false;
}
/**
* Checks to see if the specified call is the only high-level call and if so, enable the
* "Add-call" button. We allow you to add a second call but not a third or beyond.
*
* @param call The call to test for add-call.
* @return Whether the add-call feature should be enabled for the call.
*/
protected boolean isAddCallCapable(Call call) {
if (call.getParentCall() != null) {
// Never true for child calls.
return false;
}
// Loop through all the other calls and there exists a top level (has no parent) call
// that is not the specified call, return false.
for (Call otherCall : mCalls) {
if (call != otherCall && otherCall.getParentCall() == null) {
return false;
}
}
return true;
}
/**
* Returns the first call that it finds with the given states. The states are treated as having
* priority order so that any call with the first state will be returned before any call with
* states listed later in the parameter list.
*/
Call getFirstCallWithState(int... states) {
for (int currentState : states) {
// check the foreground first
if (mForegroundCall != null && mForegroundCall.getState() == currentState) {
return mForegroundCall;
}
for (Call call : mCalls) {
if (currentState == call.getState()) {
return call;
}
}
}
return null;
}
Call createConferenceCall(
PhoneAccountHandle phoneAccount,
ParcelableConference parcelableConference) {
Call call = new Call(
mConnectionServiceRepository,
null /* handle */,
null /* gatewayInfo */,
null /* connectionManagerPhoneAccount */,
phoneAccount,
false /* isIncoming */,
true /* isConference */);
setCallState(call, Call.getStateFromConnectionState(parcelableConference.getState()));
call.setCallCapabilities(parcelableConference.getCapabilities());
// TODO: Move this to be a part of addCall()
call.addListener(this);
addCall(call);
return call;
}
/**
* Adds the specified call to the main list of live calls.
*
* @param call The call to add.
*/
private void addCall(Call call) {
Log.v(this, "addCall(%s)", call);
call.addListener(this);
mCalls.add(call);
// TODO: Update mForegroundCall prior to invoking
// onCallAdded for calls which immediately take the foreground (like the first call).
for (CallsManagerListener listener : mListeners) {
listener.onCallAdded(call);
}
updateForegroundCall();
}
private void removeCall(Call call) {
Log.v(this, "removeCall(%s)", call);
call.setParentCall(null); // need to clean up parent relationship before destroying.
call.removeListener(this);
call.clearConnectionService();
boolean shouldNotify = false;
if (mCalls.contains(call)) {
mCalls.remove(call);
shouldNotify = true;
}
// Only broadcast changes for calls that are being tracked.
if (shouldNotify) {
for (CallsManagerListener listener : mListeners) {
listener.onCallRemoved(call);
}
updateForegroundCall();
}
}
/**
* Sets the specified state on the specified call.
*
* @param call The call.
* @param newState The new state of the call.
*/
private void setCallState(Call call, int newState) {
if (call == null) {
return;
}
int oldState = call.getState();
Log.i(this, "setCallState %s -> %s, call: %s", oldState, newState, call);
if (newState != oldState) {
// Unfortunately, in the telephony world the radio is king. So if the call notifies
// us that the call is in a particular state, we allow it even if it doesn't make
// sense (e.g., STATE_ACTIVE -> STATE_RINGING).
// TODO: Consider putting a stop to the above and turning CallState
// into a well-defined state machine.
// TODO: Define expected state transitions here, and log when an
// unexpected transition occurs.
call.setState(newState);
// Only broadcast state change for calls that are being tracked.
if (mCalls.contains(call)) {
for (CallsManagerListener listener : mListeners) {
listener.onCallStateChanged(call, oldState, newState);
}
updateForegroundCall();
}
}
}
/**
* Checks which call should be visible to the user and have audio focus.
*/
private void updateForegroundCall() {
Call newForegroundCall = null;
for (Call call : mCalls) {
// TODO: Foreground-ness needs to be explicitly set. No call, regardless
// of its state will be foreground by default and instead the connection service should
// be notified when its calls enter and exit foreground state. Foreground will mean that
// the call should play audio and listen to microphone if it wants.
// Active calls have priority.
if (call.isActive()) {
newForegroundCall = call;
break;
}
if (call.isAlive() || call.getState() == CallState.RINGING) {
newForegroundCall = call;
// Don't break in case there's an active call that has priority.
}
}
if (newForegroundCall != mForegroundCall) {
Log.v(this, "Updating foreground call, %s -> %s.", mForegroundCall, newForegroundCall);
Call oldForegroundCall = mForegroundCall;
mForegroundCall = newForegroundCall;
for (CallsManagerListener listener : mListeners) {
listener.onForegroundCallChanged(oldForegroundCall, mForegroundCall);
}
}
}
private boolean isPotentialMMICode(Uri handle) {
return (handle != null && handle.getSchemeSpecificPart() != null
&& handle.getSchemeSpecificPart().contains("#"));
}
}