Update ImsPhoneCallTracker to detect situations where call will drop. (37c0d71f) · Commits · e / devices / smdk4412 / android_frameworks_opt_telephony

src/java/com/android/internal/telephony/Connection.java

+22 −0

Original line number	Diff line number	Diff line
		@@ -34,6 +34,7 @@ import java.util.concurrent.CopyOnWriteArraySet;
		* {@hide}
		*/
		public abstract class Connection {

		public interface PostDialListener {
		void onPostDialWait();
		void onPostDialChar(char c);
		@@ -184,6 +185,7 @@ public abstract class Connection {
		public Call.State mPreHandoverState = Call.State.IDLE;
		private Bundle mExtras;
		private int mPhoneType;
		private boolean mAnsweringDisconnectsActiveCall;

		protected Connection(int phoneType) {
		mPhoneType = phoneType;
		@@ -774,6 +776,26 @@ public abstract class Connection {
		return mExtras;
		}

		/**
		* @return {@code true} if answering the call will cause the current active call to be
		* disconnected, {@code false} otherwise.
		*/
		public boolean isActiveCallDisconnectedOnAnswer() {
		return mAnsweringDisconnectsActiveCall;
		}

		/**
		* Sets whether answering this call will cause the active call to be disconnected.
		* <p>
		* Should only be set {@code true} if there is an active call and this call is ringing.
		*
		* @param answeringDisconnectsActiveCall {@code true} if answering the call will call the active
		* call to be disconnected.
		*/
		public void setActiveCallDisconnectedOnAnswer(boolean answeringDisconnectsActiveCall) {
		mAnsweringDisconnectsActiveCall = answeringDisconnectsActiveCall;
		}

		/**
		* Sets the call substate for the current connection and reports the changes to all listeners.
		* Valid call substates are defined in {@link android.telecom.Connection}.

src/java/com/android/internal/telephony/imsphone/ImsPhoneCallTracker.java

+85 −12

Original line number	Diff line number	Diff line
		@@ -129,6 +129,14 @@ public class ImsPhoneCallTracker extends CallTracker implements ImsPullCall {
		ImsPhoneConnection conn = new ImsPhoneConnection(mPhone, imsCall,
		ImsPhoneCallTracker.this,
		(isUnknown? mForegroundCall: mRingingCall), isUnknown);

		// If there is an active call.
		if (mForegroundCall.hasConnections()) {
		ImsCall activeCall = mForegroundCall.getFirstConnection().getImsCall();
		boolean answeringWillDisconnect =
		shouldDisconnectActiveCallOnAnswer(activeCall, imsCall);
		conn.setActiveCallDisconnectedOnAnswer(answeringWillDisconnect);
		}
		addConnection(conn);

		setVideoCallProvider(conn, imsCall);
		@@ -158,7 +166,7 @@ public class ImsPhoneCallTracker extends CallTracker implements ImsPullCall {
		int subId = intent.getIntExtra(PhoneConstants.SUBSCRIPTION_KEY,
		SubscriptionManager.INVALID_SUBSCRIPTION_ID);
		if (subId == mPhone.getSubId()) {
		mAllowEmergencyVideoCalls = isEmergencyVtCallAllowed(subId);
		cacheCarrierConfiguration(subId);
		log("onReceive : Updating mAllowEmergencyVideoCalls = " +
		mAllowEmergencyVideoCalls);
		}
		@@ -220,6 +228,18 @@ public class ImsPhoneCallTracker extends CallTracker implements ImsPullCall {
		private ImsCall mCallExpectedToResume = null;
		private boolean mAllowEmergencyVideoCalls = false;

		/**
		* Carrier configuration option which determines if video calls which have been downgraded to an
		* audio call should be treated as if they are still video calls.
		*/
		private boolean mTreatDowngradedVideoCallsAsVideoCalls = false;

		/**
		* Carrier configuration option which determines if an ongoing video call over wifi should be
		* dropped when an audio call is answered.
		*/
		private boolean mDropVideoCallWhenAnsweringAudioCall = false;

		//***** Events


		@@ -234,7 +254,7 @@ public class ImsPhoneCallTracker extends CallTracker implements ImsPullCall {
		intentfilter.addAction(ImsManager.ACTION_IMS_INCOMING_CALL);
		intentfilter.addAction(CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED);
		mPhone.getContext().registerReceiver(mReceiver, intentfilter);
		mAllowEmergencyVideoCalls = isEmergencyVtCallAllowed(mPhone.getSubId());
		cacheCarrierConfiguration(mPhone.getSubId());

		Thread t = new Thread() {
		public void run() {
		@@ -437,27 +457,32 @@ public class ImsPhoneCallTracker extends CallTracker implements ImsPullCall {
		}

		/**
		* Determines if the carrier associated with the specified SubId supports making video emergency
		* calls.
		* Caches frequently used carrier configuration items locally.
		*
		* @param subId The sub id.
		* @return {@code true} if video emergency calls are supported, {@code false} otherwise.
		*/
		private boolean isEmergencyVtCallAllowed(int subId) {
		private void cacheCarrierConfiguration(int subId) {
		CarrierConfigManager carrierConfigManager = (CarrierConfigManager)
		mPhone.getContext().getSystemService(Context.CARRIER_CONFIG_SERVICE);
		if (carrierConfigManager == null) {
		loge("isEmergencyVideoCallsSupported: No carrier config service found.");
		return false;
		loge("cacheCarrierConfiguration: No carrier config service found.");
		return;
		}

		PersistableBundle carrierConfig = carrierConfigManager.getConfigForSubId(subId);
		if (carrierConfig == null) {
		loge("isEmergencyVideoCallsSupported: Empty carrier config.");
		return false;
		loge("cacheCarrierConfiguration: Empty carrier config.");
		return;
		}

		return carrierConfig.getBoolean(CarrierConfigManager.KEY_ALLOW_EMERGENCY_VIDEO_CALLS_BOOL);
		mAllowEmergencyVideoCalls =
		carrierConfig.getBoolean(CarrierConfigManager.KEY_ALLOW_EMERGENCY_VIDEO_CALLS_BOOL);
		mTreatDowngradedVideoCallsAsVideoCalls =
		carrierConfig.getBoolean(
		CarrierConfigManager.KEY_TREAT_DOWNGRADED_VIDEO_CALLS_AS_VIDEO_CALLS_BOOL);
		mDropVideoCallWhenAnsweringAudioCall =
		carrierConfig.getBoolean(
		CarrierConfigManager.KEY_DROP_VIDEO_CALL_WHEN_ANSWERING_AUDIO_CALL_BOOL);
		}

		private void handleEcmTimer(int action) {
		@@ -558,9 +583,29 @@ public class ImsPhoneCallTracker extends CallTracker implements ImsPullCall {
		if ((mRingingCall.getState() == ImsPhoneCall.State.WAITING)
		&& mForegroundCall.getState().isAlive()) {
		setMute(false);

		boolean answeringWillDisconnect = false;
		ImsCall activeCall = mForegroundCall.getImsCall();
		ImsCall ringingCall = mRingingCall.getImsCall();
		if (mForegroundCall.hasConnections() && mRingingCall.hasConnections()) {
		answeringWillDisconnect =
		shouldDisconnectActiveCallOnAnswer(activeCall, ringingCall);
		}

		// Cache video state for pending MT call.
		mPendingCallVideoState = videoState;

		if (answeringWillDisconnect) {
		// We need to disconnect the foreground call before answering the background call.
		mForegroundCall.hangup();
		try {
		ringingCall.accept(ImsCallProfile.getCallTypeFromVideoState(videoState));
		} catch (ImsException e) {
		throw new CallStateException("cannot accept call");
		}
		} else {
		switchWaitingOrHoldingAndActive();
		}
		} else if (mRingingCall.getState().isRinging()) {
		if (DBG) log("acceptCall: incoming...");
		// Always unmute when answering a new call
		@@ -2218,4 +2263,32 @@ public class ImsPhoneCallTracker extends CallTracker implements ImsPullCall {
		private ImsException getImsManagerIsNullException() {
		return new ImsException("no ims manager", ImsReasonInfo.CODE_LOCAL_ILLEGAL_STATE);
		}

		/**
		* Determines if answering an incoming call will cause the active call to be disconnected.
		* <p>
		* This will be the case if
		* {@link CarrierConfigManager#KEY_DROP_VIDEO_CALL_WHEN_ANSWERING_AUDIO_CALL_BOOL} is
		* {@code true} for the carrier, the active call is a video call over WIFI, and the incoming
		* call is an audio call.
		*
		* @param activeCall The active call.
		* @param incomingCall The incoming call.
		* @return {@code true} if answering the incoming call will cause the active call to be
		* disconnected, {@code false} otherwise.
		*/
		private boolean shouldDisconnectActiveCallOnAnswer(ImsCall activeCall,
		ImsCall incomingCall) {

		if (!mDropVideoCallWhenAnsweringAudioCall) {
		return false;
		}

		boolean isActiveCallVideo = activeCall.isVideoCall() \|\|
		(mTreatDowngradedVideoCallsAsVideoCalls && activeCall.wasVideoCall());
		boolean isActiveCallOnWifi = activeCall.isWifiCall();
		boolean isIncomingCallAudio = !incomingCall.isVideoCall();

		return isActiveCallVideo && isActiveCallOnWifi && isIncomingCallAudio;
		}
		}