telecomm/java/android/telecom/Phone.java - LeafOS-Project/android_frameworks_base - Gitiles

 /*
  * 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 android.telecom;

 import android.annotation.SystemApi;
 import android.annotation.UnsupportedAppUsage;
 import android.bluetooth.BluetoothDevice;
 import android.os.Bundle;
 import android.os.RemoteException;
 import android.util.ArrayMap;

 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
 import java.util.concurrent.CopyOnWriteArrayList;

 /**
  * A unified virtual device providing a means of voice (and other) communication on a device.
  *
  * @hide
  * @deprecated Use {@link InCallService} directly instead of using this class.
  */
 @SystemApi
 @Deprecated
 public final class Phone {

     public abstract static class Listener {
         /**
          * Called when the audio state changes.
          *
          * @param phone The {@code Phone} calling this method.
          * @param audioState The new {@link AudioState}.
          *
          * @deprecated Use {@link #onCallAudioStateChanged(Phone, CallAudioState)} instead.
          */
         @Deprecated
         public void onAudioStateChanged(Phone phone, AudioState audioState) { }

         /**
          * Called when the audio state changes.
          *
          * @param phone The {@code Phone} calling this method.
          * @param callAudioState The new {@link CallAudioState}.
          */
         public void onCallAudioStateChanged(Phone phone, CallAudioState callAudioState) { }

         /**
          * Called to bring the in-call screen to the foreground. The in-call experience should
          * respond immediately by coming to the foreground to inform the user of the state of
          * ongoing {@code Call}s.
          *
          * @param phone The {@code Phone} calling this method.
          * @param showDialpad If true, put up the dialpad when the screen is shown.
          */
         public void onBringToForeground(Phone phone, boolean showDialpad) { }

         /**
          * Called when a {@code Call} has been added to this in-call session. The in-call user
          * experience should add necessary state listeners to the specified {@code Call} and
          * immediately start to show the user information about the existence
          * and nature of this {@code Call}. Subsequent invocations of {@link #getCalls()} will
          * include this {@code Call}.
          *
          * @param phone The {@code Phone} calling this method.
          * @param call A newly added {@code Call}.
          */
         public void onCallAdded(Phone phone, Call call) { }

         /**
          * Called when a {@code Call} has been removed from this in-call session. The in-call user
          * experience should remove any state listeners from the specified {@code Call} and
          * immediately stop displaying any information about this {@code Call}.
          * Subsequent invocations of {@link #getCalls()} will no longer include this {@code Call}.
          *
          * @param phone The {@code Phone} calling this method.
          * @param call A newly removed {@code Call}.
          */
         public void onCallRemoved(Phone phone, Call call) { }

         /**
          * Called when the {@code Phone} ability to add more calls changes.  If the phone cannot
          * support more calls then {@code canAddCall} is set to {@code false}.  If it can, then it
          * is set to {@code true}.
          *
          * @param phone The {@code Phone} calling this method.
          * @param canAddCall Indicates whether an additional call can be added.
          */
         public void onCanAddCallChanged(Phone phone, boolean canAddCall) { }

         /**
          * Called to silence the ringer if a ringing call exists.
          *
          * @param phone The {@code Phone} calling this method.
          */
         public void onSilenceRinger(Phone phone) { }
     }

     // A Map allows us to track each Call by its Telecom-specified call ID
     private final Map<String, Call> mCallByTelecomCallId = new ArrayMap<>();

     // A List allows us to keep the Calls in a stable iteration order so that casually developed
     // user interface components do not incur any spurious jank
     private final List<Call> mCalls = new CopyOnWriteArrayList<>();

     // An unmodifiable view of the above List can be safely shared with subclass implementations
     private final List<Call> mUnmodifiableCalls = Collections.unmodifiableList(mCalls);

     private final InCallAdapter mInCallAdapter;

     private CallAudioState mCallAudioState;

     private final List<Listener> mListeners = new CopyOnWriteArrayList<>();

     private boolean mCanAddCall = true;

     private final String mCallingPackage;

     /**
      * The Target SDK version of the InCallService implementation.
      */
     private final int mTargetSdkVersion;

     Phone(InCallAdapter adapter, String callingPackage, int targetSdkVersion) {
         mInCallAdapter = adapter;
         mCallingPackage = callingPackage;
         mTargetSdkVersion = targetSdkVersion;
     }

     final void internalAddCall(ParcelableCall parcelableCall) {
         Call call = new Call(this, parcelableCall.getId(), mInCallAdapter,
                 parcelableCall.getState(), mCallingPackage, mTargetSdkVersion);
         mCallByTelecomCallId.put(parcelableCall.getId(), call);
         mCalls.add(call);
         checkCallTree(parcelableCall);
         call.internalUpdate(parcelableCall, mCallByTelecomCallId);
         fireCallAdded(call);
      }

     final void internalRemoveCall(Call call) {
         mCallByTelecomCallId.remove(call.internalGetCallId());
         mCalls.remove(call);

         InCallService.VideoCall videoCall = call.getVideoCall();
         if (videoCall != null) {
             videoCall.destroy();
         }
         fireCallRemoved(call);
     }

     final void internalUpdateCall(ParcelableCall parcelableCall) {
          Call call = mCallByTelecomCallId.get(parcelableCall.getId());
          if (call != null) {
              checkCallTree(parcelableCall);
              call.internalUpdate(parcelableCall, mCallByTelecomCallId);
          }
      }

     final void internalSetPostDialWait(String telecomId, String remaining) {
         Call call = mCallByTelecomCallId.get(telecomId);
         if (call != null) {
             call.internalSetPostDialWait(remaining);
         }
     }

     final void internalCallAudioStateChanged(CallAudioState callAudioState) {
         if (!Objects.equals(mCallAudioState, callAudioState)) {
             mCallAudioState = callAudioState;
             fireCallAudioStateChanged(callAudioState);
         }
     }

     final Call internalGetCallByTelecomId(String telecomId) {
         return mCallByTelecomCallId.get(telecomId);
     }

     final void internalBringToForeground(boolean showDialpad) {
         fireBringToForeground(showDialpad);
     }

     final void internalSetCanAddCall(boolean canAddCall) {
         if (mCanAddCall != canAddCall) {
             mCanAddCall = canAddCall;
             fireCanAddCallChanged(canAddCall);
         }
     }

     final void internalSilenceRinger() {
         fireSilenceRinger();
     }

     final void internalOnConnectionEvent(String telecomId, String event, Bundle extras) {
         Call call = mCallByTelecomCallId.get(telecomId);
         if (call != null) {
             call.internalOnConnectionEvent(event, extras);
         }
     }

     final void internalOnRttUpgradeRequest(String callId, int requestId) {
         Call call = mCallByTelecomCallId.get(callId);
         if (call != null) {
             call.internalOnRttUpgradeRequest(requestId);
         }
     }

     final void internalOnRttInitiationFailure(String callId, int reason) {
         Call call = mCallByTelecomCallId.get(callId);
         if (call != null) {
             call.internalOnRttInitiationFailure(reason);
         }
     }

     final void internalOnHandoverFailed(String callId, int error) {
         Call call = mCallByTelecomCallId.get(callId);
         if (call != null) {
             call.internalOnHandoverFailed(error);
         }
     }

     final void internalOnHandoverComplete(String callId) {
         Call call = mCallByTelecomCallId.get(callId);
         if (call != null) {
             call.internalOnHandoverComplete();
         }
     }

     /**
      * Called to destroy the phone and cleanup any lingering calls.
      */
     final void destroy() {
         for (Call call : mCalls) {
             InCallService.VideoCall videoCall = call.getVideoCall();
             if (videoCall != null) {
                 videoCall.destroy();
             }
             if (call.getState() != Call.STATE_DISCONNECTED) {
                 call.internalSetDisconnected();
             }
         }
     }

     /**
      * Adds a listener to this {@code Phone}.
      *
      * @param listener A {@code Listener} object.
      */
     public final void addListener(Listener listener) {
         mListeners.add(listener);
     }

     /**
      * Removes a listener from this {@code Phone}.
      *
      * @param listener A {@code Listener} object.
      */
     public final void removeListener(Listener listener) {
         if (listener != null) {
             mListeners.remove(listener);
         }
     }

     /**
      * Obtains the current list of {@code Call}s to be displayed by this in-call experience.
      *
      * @return A list of the relevant {@code Call}s.
      */
     public final List<Call> getCalls() {
         return mUnmodifiableCalls;
     }

     /**
      * Returns if the {@code Phone} can support additional calls.
      *
      * @return Whether the phone supports adding more calls.
      */
     public final boolean canAddCall() {
         return mCanAddCall;
     }

     /**
      * Sets the microphone mute state. When this request is honored, there will be change to
      * the {@link #getAudioState()}.
      *
      * @param state {@code true} if the microphone should be muted; {@code false} otherwise.
      */
     public final void setMuted(boolean state) {
         mInCallAdapter.mute(state);
     }

     /**
      * Sets the audio route (speaker, bluetooth, etc...).  When this request is honored, there will
      * be change to the {@link #getAudioState()}.
      *
      * @param route The audio route to use.
      */
     public final void setAudioRoute(int route) {
         mInCallAdapter.setAudioRoute(route);
     }

     /**
      * Request audio routing to a specific bluetooth device. Calling this method may result in
      * the device routing audio to a different bluetooth device than the one specified. A list of
      * available devices can be obtained via {@link CallAudioState#getSupportedBluetoothDevices()}
      *
      * @param bluetoothAddress The address of the bluetooth device to connect to, as returned by
      * {@link BluetoothDevice#getAddress()}, or {@code null} if no device is preferred.
      */
     public void requestBluetoothAudio(String bluetoothAddress) {
         mInCallAdapter.requestBluetoothAudio(bluetoothAddress);
     }

     /**
      * Turns the proximity sensor on. When this request is made, the proximity sensor will
      * become active, and the touch screen and display will be turned off when the user's face
      * is detected to be in close proximity to the screen. This operation is a no-op on devices
      * that do not have a proximity sensor.
      *
      * @hide
      */
     @UnsupportedAppUsage
     public final void setProximitySensorOn() {
         mInCallAdapter.turnProximitySensorOn();
     }

     /**
      * Turns the proximity sensor off. When this request is made, the proximity sensor will
      * become inactive, and no longer affect the touch screen and display. This operation is a
      * no-op on devices that do not have a proximity sensor.
      *
      * @param screenOnImmediately If true, the screen will be turned on immediately if it was
      * previously off. Otherwise, the screen will only be turned on after the proximity sensor
      * is no longer triggered.
      *
      * @hide
      */
     @UnsupportedAppUsage
     public final void setProximitySensorOff(boolean screenOnImmediately) {
         mInCallAdapter.turnProximitySensorOff(screenOnImmediately);
     }

     /**
      * Obtains the current phone call audio state of the {@code Phone}.
      *
      * @return An object encapsulating the audio state.
      * @deprecated Use {@link #getCallAudioState()} instead.
      */
     @Deprecated
     public final AudioState getAudioState() {
         return new AudioState(mCallAudioState);
     }

     /**
      * Obtains the current phone call audio state of the {@code Phone}.
      *
      * @return An object encapsulating the audio state.
      */
     public final CallAudioState getCallAudioState() {
         return mCallAudioState;
     }

     private void fireCallAdded(Call call) {
         for (Listener listener : mListeners) {
             listener.onCallAdded(this, call);
         }
     }

     private void fireCallRemoved(Call call) {
         for (Listener listener : mListeners) {
             listener.onCallRemoved(this, call);
         }
     }

     private void fireCallAudioStateChanged(CallAudioState audioState) {
         for (Listener listener : mListeners) {
             listener.onCallAudioStateChanged(this, audioState);
             listener.onAudioStateChanged(this, new AudioState(audioState));
         }
     }

     private void fireBringToForeground(boolean showDialpad) {
         for (Listener listener : mListeners) {
             listener.onBringToForeground(this, showDialpad);
         }
     }

     private void fireCanAddCallChanged(boolean canAddCall) {
         for (Listener listener : mListeners) {
             listener.onCanAddCallChanged(this, canAddCall);
         }
     }

     private void fireSilenceRinger() {
         for (Listener listener : mListeners) {
             listener.onSilenceRinger(this);
         }
     }

     private void checkCallTree(ParcelableCall parcelableCall) {
         if (parcelableCall.getChildCallIds() != null) {
             for (int i = 0; i < parcelableCall.getChildCallIds().size(); i++) {
                 if (!mCallByTelecomCallId.containsKey(parcelableCall.getChildCallIds().get(i))) {
                     Log.wtf(this, "ParcelableCall %s has nonexistent child %s",
                             parcelableCall.getId(), parcelableCall.getChildCallIds().get(i));
                 }
             }
         }
     }
 }
	/*
	* 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 android.telecom;

	import android.annotation.SystemApi;
	import android.annotation.UnsupportedAppUsage;
	import android.bluetooth.BluetoothDevice;
	import android.os.Bundle;
	import android.os.RemoteException;
	import android.util.ArrayMap;

	import java.util.Collections;
	import java.util.List;
	import java.util.Map;
	import java.util.Objects;
	import java.util.concurrent.CopyOnWriteArrayList;

	/**
	* A unified virtual device providing a means of voice (and other) communication on a device.
	*
	* @hide
	* @deprecated Use {@link InCallService} directly instead of using this class.
	*/
	@SystemApi
	@Deprecated
	public final class Phone {

	public abstract static class Listener {
	/**
	* Called when the audio state changes.
	*
	* @param phone The {@code Phone} calling this method.
	* @param audioState The new {@link AudioState}.
	*
	* @deprecated Use {@link #onCallAudioStateChanged(Phone, CallAudioState)} instead.
	*/
	@Deprecated
	public void onAudioStateChanged(Phone phone, AudioState audioState) { }

	/**
	* Called when the audio state changes.
	*
	* @param phone The {@code Phone} calling this method.
	* @param callAudioState The new {@link CallAudioState}.
	*/
	public void onCallAudioStateChanged(Phone phone, CallAudioState callAudioState) { }

	/**
	* Called to bring the in-call screen to the foreground. The in-call experience should
	* respond immediately by coming to the foreground to inform the user of the state of
	* ongoing {@code Call}s.
	*
	* @param phone The {@code Phone} calling this method.
	* @param showDialpad If true, put up the dialpad when the screen is shown.
	*/
	public void onBringToForeground(Phone phone, boolean showDialpad) { }

	/**
	* Called when a {@code Call} has been added to this in-call session. The in-call user
	* experience should add necessary state listeners to the specified {@code Call} and
	* immediately start to show the user information about the existence
	* and nature of this {@code Call}. Subsequent invocations of {@link #getCalls()} will
	* include this {@code Call}.
	*
	* @param phone The {@code Phone} calling this method.
	* @param call A newly added {@code Call}.
	*/
	public void onCallAdded(Phone phone, Call call) { }

	/**
	* Called when a {@code Call} has been removed from this in-call session. The in-call user
	* experience should remove any state listeners from the specified {@code Call} and
	* immediately stop displaying any information about this {@code Call}.
	* Subsequent invocations of {@link #getCalls()} will no longer include this {@code Call}.
	*
	* @param phone The {@code Phone} calling this method.
	* @param call A newly removed {@code Call}.
	*/
	public void onCallRemoved(Phone phone, Call call) { }

	/**
	* Called when the {@code Phone} ability to add more calls changes. If the phone cannot
	* support more calls then {@code canAddCall} is set to {@code false}. If it can, then it
	* is set to {@code true}.
	*
	* @param phone The {@code Phone} calling this method.
	* @param canAddCall Indicates whether an additional call can be added.
	*/
	public void onCanAddCallChanged(Phone phone, boolean canAddCall) { }

	/**
	* Called to silence the ringer if a ringing call exists.
	*
	* @param phone The {@code Phone} calling this method.
	*/
	public void onSilenceRinger(Phone phone) { }
	}

	// A Map allows us to track each Call by its Telecom-specified call ID
	private final Map<String, Call> mCallByTelecomCallId = new ArrayMap<>();

	// A List allows us to keep the Calls in a stable iteration order so that casually developed
	// user interface components do not incur any spurious jank
	private final List<Call> mCalls = new CopyOnWriteArrayList<>();

	// An unmodifiable view of the above List can be safely shared with subclass implementations
	private final List<Call> mUnmodifiableCalls = Collections.unmodifiableList(mCalls);

	private final InCallAdapter mInCallAdapter;

	private CallAudioState mCallAudioState;

	private final List<Listener> mListeners = new CopyOnWriteArrayList<>();

	private boolean mCanAddCall = true;

	private final String mCallingPackage;

	/**
	* The Target SDK version of the InCallService implementation.
	*/
	private final int mTargetSdkVersion;

	Phone(InCallAdapter adapter, String callingPackage, int targetSdkVersion) {
	mInCallAdapter = adapter;
	mCallingPackage = callingPackage;
	mTargetSdkVersion = targetSdkVersion;
	}

	final void internalAddCall(ParcelableCall parcelableCall) {
	Call call = new Call(this, parcelableCall.getId(), mInCallAdapter,
	parcelableCall.getState(), mCallingPackage, mTargetSdkVersion);
	mCallByTelecomCallId.put(parcelableCall.getId(), call);
	mCalls.add(call);
	checkCallTree(parcelableCall);
	call.internalUpdate(parcelableCall, mCallByTelecomCallId);
	fireCallAdded(call);
	}

	final void internalRemoveCall(Call call) {
	mCallByTelecomCallId.remove(call.internalGetCallId());
	mCalls.remove(call);

	InCallService.VideoCall videoCall = call.getVideoCall();
	if (videoCall != null) {
	videoCall.destroy();
	}
	fireCallRemoved(call);
	}

	final void internalUpdateCall(ParcelableCall parcelableCall) {
	Call call = mCallByTelecomCallId.get(parcelableCall.getId());
	if (call != null) {
	checkCallTree(parcelableCall);
	call.internalUpdate(parcelableCall, mCallByTelecomCallId);
	}
	}

	final void internalSetPostDialWait(String telecomId, String remaining) {
	Call call = mCallByTelecomCallId.get(telecomId);
	if (call != null) {
	call.internalSetPostDialWait(remaining);
	}
	}

	final void internalCallAudioStateChanged(CallAudioState callAudioState) {
	if (!Objects.equals(mCallAudioState, callAudioState)) {
	mCallAudioState = callAudioState;
	fireCallAudioStateChanged(callAudioState);
	}
	}

	final Call internalGetCallByTelecomId(String telecomId) {
	return mCallByTelecomCallId.get(telecomId);
	}

	final void internalBringToForeground(boolean showDialpad) {
	fireBringToForeground(showDialpad);
	}

	final void internalSetCanAddCall(boolean canAddCall) {
	if (mCanAddCall != canAddCall) {
	mCanAddCall = canAddCall;
	fireCanAddCallChanged(canAddCall);
	}
	}

	final void internalSilenceRinger() {
	fireSilenceRinger();
	}

	final void internalOnConnectionEvent(String telecomId, String event, Bundle extras) {
	Call call = mCallByTelecomCallId.get(telecomId);
	if (call != null) {
	call.internalOnConnectionEvent(event, extras);
	}
	}

	final void internalOnRttUpgradeRequest(String callId, int requestId) {
	Call call = mCallByTelecomCallId.get(callId);
	if (call != null) {
	call.internalOnRttUpgradeRequest(requestId);
	}
	}

	final void internalOnRttInitiationFailure(String callId, int reason) {
	Call call = mCallByTelecomCallId.get(callId);
	if (call != null) {
	call.internalOnRttInitiationFailure(reason);
	}
	}

	final void internalOnHandoverFailed(String callId, int error) {
	Call call = mCallByTelecomCallId.get(callId);
	if (call != null) {
	call.internalOnHandoverFailed(error);
	}
	}

	final void internalOnHandoverComplete(String callId) {
	Call call = mCallByTelecomCallId.get(callId);
	if (call != null) {
	call.internalOnHandoverComplete();
	}
	}

	/**
	* Called to destroy the phone and cleanup any lingering calls.
	*/
	final void destroy() {
	for (Call call : mCalls) {
	InCallService.VideoCall videoCall = call.getVideoCall();
	if (videoCall != null) {
	videoCall.destroy();
	}
	if (call.getState() != Call.STATE_DISCONNECTED) {
	call.internalSetDisconnected();
	}
	}
	}

	/**
	* Adds a listener to this {@code Phone}.
	*
	* @param listener A {@code Listener} object.
	*/
	public final void addListener(Listener listener) {
	mListeners.add(listener);
	}

	/**
	* Removes a listener from this {@code Phone}.
	*
	* @param listener A {@code Listener} object.
	*/
	public final void removeListener(Listener listener) {
	if (listener != null) {
	mListeners.remove(listener);
	}
	}

	/**
	* Obtains the current list of {@code Call}s to be displayed by this in-call experience.
	*
	* @return A list of the relevant {@code Call}s.
	*/
	public final List<Call> getCalls() {
	return mUnmodifiableCalls;
	}

	/**
	* Returns if the {@code Phone} can support additional calls.
	*
	* @return Whether the phone supports adding more calls.
	*/
	public final boolean canAddCall() {
	return mCanAddCall;
	}

	/**
	* Sets the microphone mute state. When this request is honored, there will be change to
	* the {@link #getAudioState()}.
	*
	* @param state {@code true} if the microphone should be muted; {@code false} otherwise.
	*/
	public final void setMuted(boolean state) {
	mInCallAdapter.mute(state);
	}

	/**
	* Sets the audio route (speaker, bluetooth, etc...). When this request is honored, there will
	* be change to the {@link #getAudioState()}.
	*
	* @param route The audio route to use.
	*/
	public final void setAudioRoute(int route) {
	mInCallAdapter.setAudioRoute(route);
	}

	/**
	* Request audio routing to a specific bluetooth device. Calling this method may result in
	* the device routing audio to a different bluetooth device than the one specified. A list of
	* available devices can be obtained via {@link CallAudioState#getSupportedBluetoothDevices()}
	*
	* @param bluetoothAddress The address of the bluetooth device to connect to, as returned by
	* {@link BluetoothDevice#getAddress()}, or {@code null} if no device is preferred.
	*/
	public void requestBluetoothAudio(String bluetoothAddress) {
	mInCallAdapter.requestBluetoothAudio(bluetoothAddress);
	}

	/**
	* Turns the proximity sensor on. When this request is made, the proximity sensor will
	* become active, and the touch screen and display will be turned off when the user's face
	* is detected to be in close proximity to the screen. This operation is a no-op on devices
	* that do not have a proximity sensor.
	*
	* @hide
	*/
	@UnsupportedAppUsage
	public final void setProximitySensorOn() {
	mInCallAdapter.turnProximitySensorOn();
	}

	/**
	* Turns the proximity sensor off. When this request is made, the proximity sensor will
	* become inactive, and no longer affect the touch screen and display. This operation is a
	* no-op on devices that do not have a proximity sensor.
	*
	* @param screenOnImmediately If true, the screen will be turned on immediately if it was
	* previously off. Otherwise, the screen will only be turned on after the proximity sensor
	* is no longer triggered.
	*
	* @hide
	*/
	@UnsupportedAppUsage
	public final void setProximitySensorOff(boolean screenOnImmediately) {
	mInCallAdapter.turnProximitySensorOff(screenOnImmediately);
	}

	/**
	* Obtains the current phone call audio state of the {@code Phone}.
	*
	* @return An object encapsulating the audio state.
	* @deprecated Use {@link #getCallAudioState()} instead.
	*/
	@Deprecated
	public final AudioState getAudioState() {
	return new AudioState(mCallAudioState);
	}

	/**
	* Obtains the current phone call audio state of the {@code Phone}.
	*
	* @return An object encapsulating the audio state.
	*/
	public final CallAudioState getCallAudioState() {
	return mCallAudioState;
	}

	private void fireCallAdded(Call call) {
	for (Listener listener : mListeners) {
	listener.onCallAdded(this, call);
	}
	}

	private void fireCallRemoved(Call call) {
	for (Listener listener : mListeners) {
	listener.onCallRemoved(this, call);
	}
	}

	private void fireCallAudioStateChanged(CallAudioState audioState) {
	for (Listener listener : mListeners) {
	listener.onCallAudioStateChanged(this, audioState);
	listener.onAudioStateChanged(this, new AudioState(audioState));
	}
	}

	private void fireBringToForeground(boolean showDialpad) {
	for (Listener listener : mListeners) {
	listener.onBringToForeground(this, showDialpad);
	}
	}

	private void fireCanAddCallChanged(boolean canAddCall) {
	for (Listener listener : mListeners) {
	listener.onCanAddCallChanged(this, canAddCall);
	}
	}

	private void fireSilenceRinger() {
	for (Listener listener : mListeners) {
	listener.onSilenceRinger(this);
	}
	}

	private void checkCallTree(ParcelableCall parcelableCall) {
	if (parcelableCall.getChildCallIds() != null) {
	for (int i = 0; i < parcelableCall.getChildCallIds().size(); i++) {
	if (!mCallByTelecomCallId.containsKey(parcelableCall.getChildCallIds().get(i))) {
	Log.wtf(this, "ParcelableCall %s has nonexistent child %s",
	parcelableCall.getId(), parcelableCall.getChildCallIds().get(i));
	}
	}
	}
	}
	}