1 files changed, 763 insertions, 0 deletions
diff --git a/java/com/android/incallui/call/CallList.java b/java/com/android/incallui/call/CallList.java
new file mode 100644
index 000000000..862c71cf9
--- /dev/null
+++ b/java/com/android/incallui/call/CallList.java
@@ -0,0 +1,763 @@
+/*
+ * Copyright (C) 2017 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.incallui.call;
+
+import android.content.Context;
+import android.os.Handler;
+import android.os.Message;
+import android.os.Trace;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.annotation.VisibleForTesting;
+import android.support.v4.os.BuildCompat;
+import android.telecom.Call;
+import android.telecom.DisconnectCause;
+import android.telecom.PhoneAccount;
+import android.util.ArrayMap;
+import com.android.contacts.common.GeoUtil;
+import com.android.dialer.blocking.FilteredNumberAsyncQueryHandler;
+import com.android.dialer.blocking.FilteredNumbersUtil;
+import com.android.dialer.common.Assert;
+import com.android.dialer.common.LogUtil;
+import com.android.dialer.logging.Logger;
+import com.android.dialer.logging.nano.DialerImpression;
+import com.android.dialer.shortcuts.ShortcutUsageReporter;
+import com.android.dialer.spam.Spam;
+import com.android.dialer.spam.SpamBindings;
+import com.android.incallui.call.DialerCall.SessionModificationState;
+import com.android.incallui.call.DialerCall.State;
+import com.android.incallui.latencyreport.LatencyReport;
+import com.android.incallui.util.TelecomCallUtil;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * Maintains the list of active calls and notifies interested classes of changes to the call list as
+ * they are received from the telephony stack. Primary listener of changes to this class is
+ * InCallPresenter.
+ */
+public class CallList implements DialerCallDelegate {
+
+  private static final int DISCONNECTED_CALL_SHORT_TIMEOUT_MS = 200;
+  private static final int DISCONNECTED_CALL_MEDIUM_TIMEOUT_MS = 2000;
+  private static final int DISCONNECTED_CALL_LONG_TIMEOUT_MS = 5000;
+
+  private static final int EVENT_DISCONNECTED_TIMEOUT = 1;
+
+  private static CallList sInstance = new CallList();
+
+  private final Map<String, DialerCall> mCallById = new ArrayMap<>();
+  private final Map<android.telecom.Call, DialerCall> mCallByTelecomCall = new ArrayMap<>();
+
+  /**
+   * 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<Listener> mListeners =
+      Collections.newSetFromMap(new ConcurrentHashMap<Listener, Boolean>(8, 0.9f, 1));
+
+  private final Set<DialerCall> mPendingDisconnectCalls =
+      Collections.newSetFromMap(new ConcurrentHashMap<DialerCall, Boolean>(8, 0.9f, 1));
+  /** Handles the timeout for destroying disconnected calls. */
+  private final Handler mHandler =
+      new Handler() {
+        @Override
+        public void handleMessage(Message msg) {
+          switch (msg.what) {
+            case EVENT_DISCONNECTED_TIMEOUT:
+              LogUtil.d("CallList.handleMessage", "EVENT_DISCONNECTED_TIMEOUT ", msg.obj);
+              finishDisconnectedCall((DialerCall) msg.obj);
+              break;
+            default:
+              LogUtil.e("CallList.handleMessage", "Message not expected: " + msg.what);
+              break;
+          }
+        }
+      };
+
+  /**
+   * USED ONLY FOR TESTING Testing-only constructor. Instance should only be acquired through
+   * getInstance().
+   */
+  @VisibleForTesting
+  public CallList() {}
+
+  /** Static singleton accessor method. */
+  public static CallList getInstance() {
+    return sInstance;
+  }
+
+  public void onCallAdded(
+      final Context context, final android.telecom.Call telecomCall, LatencyReport latencyReport) {
+    Trace.beginSection("onCallAdded");
+    final DialerCall call =
+        new DialerCall(context, this, telecomCall, latencyReport, true /* registerCallback */);
+    final DialerCallListenerImpl dialerCallListener = new DialerCallListenerImpl(call);
+    call.addListener(dialerCallListener);
+    LogUtil.d("CallList.onCallAdded", "callState=" + call.getState());
+    if (Spam.get(context).isSpamEnabled()) {
+      String number = TelecomCallUtil.getNumber(telecomCall);
+      Spam.get(context)
+          .checkSpamStatus(
+              number,
+              null,
+              new SpamBindings.Listener() {
+                @Override
+                public void onComplete(boolean isSpam) {
+                  if (isSpam) {
+                    if (call.getState() != DialerCall.State.INCOMING
+                        && call.getState() != DialerCall.State.CALL_WAITING) {
+                      LogUtil.i(
+                          "CallList.onCallAdded",
+                          "marking spam call as not spam because it's not an incoming call");
+                      isSpam = false;
+                    } else if (isPotentialEmergencyCallback(context, call)) {
+                      LogUtil.i(
+                          "CallList.onCallAdded",
+                          "marking spam call as not spam because an emergency call was made on this"
+                              + " device recently");
+                      isSpam = false;
+                    }
+                  }
+
+                  Logger.get(context)
+                      .logCallImpression(
+                          isSpam
+                              ? DialerImpression.Type.INCOMING_SPAM_CALL
+                              : DialerImpression.Type.INCOMING_NON_SPAM_CALL,
+                          call.getUniqueCallId(),
+                          call.getTimeAddedMs());
+                  call.setSpam(isSpam);
+                  dialerCallListener.onDialerCallUpdate();
+                }
+              });
+
+      updateUserMarkedSpamStatus(call, context, number, dialerCallListener);
+    }
+
+    FilteredNumberAsyncQueryHandler filteredNumberAsyncQueryHandler =
+        new FilteredNumberAsyncQueryHandler(context);
+
+    filteredNumberAsyncQueryHandler.isBlockedNumber(
+        new FilteredNumberAsyncQueryHandler.OnCheckBlockedListener() {
+          @Override
+          public void onCheckComplete(Integer id) {
+            if (id != null && id != FilteredNumberAsyncQueryHandler.INVALID_ID) {
+              call.setBlockedStatus(true);
+              dialerCallListener.onDialerCallUpdate();
+            }
+          }
+        },
+        call.getNumber(),
+        GeoUtil.getCurrentCountryIso(context));
+
+    if (call.getState() == DialerCall.State.INCOMING
+        || call.getState() == DialerCall.State.CALL_WAITING) {
+      onIncoming(call);
+    } else {
+      dialerCallListener.onDialerCallUpdate();
+    }
+
+    if (call.getState() != State.INCOMING) {
+      // Only report outgoing calls
+      ShortcutUsageReporter.onOutgoingCallAdded(context, call.getNumber());
+    }
+
+    Trace.endSection();
+  }
+
+  private static boolean isPotentialEmergencyCallback(Context context, DialerCall call) {
+    if (BuildCompat.isAtLeastO()) {
+      return call.isPotentialEmergencyCallback();
+    } else {
+      long timestampMillis = FilteredNumbersUtil.getLastEmergencyCallTimeMillis(context);
+      return call.isInEmergencyCallbackWindow(timestampMillis);
+    }
+  }
+
+  @Override
+  public DialerCall getDialerCallFromTelecomCall(Call telecomCall) {
+    return mCallByTelecomCall.get(telecomCall);
+  }
+
+  public void updateUserMarkedSpamStatus(
+      final DialerCall call,
+      final Context context,
+      String number,
+      final DialerCallListenerImpl dialerCallListener) {
+
+    Spam.get(context)
+        .checkUserMarkedNonSpamStatus(
+            number,
+            null,
+            new SpamBindings.Listener() {
+              @Override
+              public void onComplete(boolean isInUserWhiteList) {
+                call.setIsInUserWhiteList(isInUserWhiteList);
+              }
+            });
+
+    Spam.get(context)
+        .checkGlobalSpamListStatus(
+            number,
+            null,
+            new SpamBindings.Listener() {
+              @Override
+              public void onComplete(boolean isInGlobalSpamList) {
+                call.setIsInGlobalSpamList(isInGlobalSpamList);
+              }
+            });
+
+    Spam.get(context)
+        .checkUserMarkedSpamStatus(
+            number,
+            null,
+            new SpamBindings.Listener() {
+              @Override
+              public void onComplete(boolean isInUserSpamList) {
+                call.setIsInUserSpamList(isInUserSpamList);
+              }
+            });
+  }
+
+  public void onCallRemoved(Context context, android.telecom.Call telecomCall) {
+    if (mCallByTelecomCall.containsKey(telecomCall)) {
+      DialerCall call = mCallByTelecomCall.get(telecomCall);
+      Assert.checkArgument(!call.isExternalCall());
+
+      // Don't log an already logged call. logCall() might be called multiple times
+      // for the same call due to b/24109437.
+      if (call.getLogState() != null && !call.getLogState().isLogged) {
+        getLegacyBindings(context).logCall(call);
+        call.getLogState().isLogged = true;
+      }
+
+      if (updateCallInMap(call)) {
+        LogUtil.w(
+            "CallList.onCallRemoved", "Removing call not previously disconnected " + call.getId());
+      }
+    }
+  }
+
+  InCallUiLegacyBindings getLegacyBindings(Context context) {
+    Objects.requireNonNull(context);
+
+    Context application = context.getApplicationContext();
+    InCallUiLegacyBindings legacyInstance = null;
+    if (application instanceof InCallUiLegacyBindingsFactory) {
+      legacyInstance = ((InCallUiLegacyBindingsFactory) application).newInCallUiLegacyBindings();
+    }
+
+    if (legacyInstance == null) {
+      legacyInstance = new InCallUiLegacyBindingsStub();
+    }
+    return legacyInstance;
+  }
+
+  /**
+   * Handles the case where an internal call has become an exteral call. We need to
+   *
+   * @param context
+   * @param telecomCall
+   */
+  public void onInternalCallMadeExternal(Context context, android.telecom.Call telecomCall) {
+
+    if (mCallByTelecomCall.containsKey(telecomCall)) {
+      DialerCall call = mCallByTelecomCall.get(telecomCall);
+
+      // Don't log an already logged call. logCall() might be called multiple times
+      // for the same call due to b/24109437.
+      if (call.getLogState() != null && !call.getLogState().isLogged) {
+        getLegacyBindings(context).logCall(call);
+        call.getLogState().isLogged = true;
+      }
+
+      // When removing a call from the call list because it became an external call, we need to
+      // ensure the callback is unregistered -- this is normally only done when calls disconnect.
+      // However, the call won't be disconnected in this case.  Also, logic in updateCallInMap
+      // would just re-add the call anyways.
+      call.unregisterCallback();
+      mCallById.remove(call.getId());
+      mCallByTelecomCall.remove(telecomCall);
+    }
+  }
+
+  /** Called when a single call has changed. */
+  private void onIncoming(DialerCall call) {
+    if (updateCallInMap(call)) {
+      LogUtil.i("CallList.onIncoming", String.valueOf(call));
+    }
+
+    for (Listener listener : mListeners) {
+      listener.onIncomingCall(call);
+    }
+  }
+
+  public void addListener(@NonNull Listener listener) {
+    Objects.requireNonNull(listener);
+
+    mListeners.add(listener);
+
+    // Let the listener know about the active calls immediately.
+    listener.onCallListChange(this);
+  }
+
+  public void removeListener(@Nullable Listener listener) {
+    if (listener != null) {
+      mListeners.remove(listener);
+    }
+  }
+
+  /**
+   * TODO: Change so that this function is not needed. Instead of assuming there is an active call,
+   * the code should rely on the status of a specific DialerCall and allow the presenters to update
+   * the DialerCall object when the active call changes.
+   */
+  public DialerCall getIncomingOrActive() {
+    DialerCall retval = getIncomingCall();
+    if (retval == null) {
+      retval = getActiveCall();
+    }
+    return retval;
+  }
+
+  public DialerCall getOutgoingOrActive() {
+    DialerCall retval = getOutgoingCall();
+    if (retval == null) {
+      retval = getActiveCall();
+    }
+    return retval;
+  }
+
+  /** A call that is waiting for {@link PhoneAccount} selection */
+  public DialerCall getWaitingForAccountCall() {
+    return getFirstCallWithState(DialerCall.State.SELECT_PHONE_ACCOUNT);
+  }
+
+  public DialerCall getPendingOutgoingCall() {
+    return getFirstCallWithState(DialerCall.State.CONNECTING);
+  }
+
+  public DialerCall getOutgoingCall() {
+    DialerCall call = getFirstCallWithState(DialerCall.State.DIALING);
+    if (call == null) {
+      call = getFirstCallWithState(DialerCall.State.REDIALING);
+    }
+    if (call == null) {
+      call = getFirstCallWithState(DialerCall.State.PULLING);
+    }
+    return call;
+  }
+
+  public DialerCall getActiveCall() {
+    return getFirstCallWithState(DialerCall.State.ACTIVE);
+  }
+
+  public DialerCall getSecondActiveCall() {
+    return getCallWithState(DialerCall.State.ACTIVE, 1);
+  }
+
+  public DialerCall getBackgroundCall() {
+    return getFirstCallWithState(DialerCall.State.ONHOLD);
+  }
+
+  public DialerCall getDisconnectedCall() {
+    return getFirstCallWithState(DialerCall.State.DISCONNECTED);
+  }
+
+  public DialerCall getDisconnectingCall() {
+    return getFirstCallWithState(DialerCall.State.DISCONNECTING);
+  }
+
+  public DialerCall getSecondBackgroundCall() {
+    return getCallWithState(DialerCall.State.ONHOLD, 1);
+  }
+
+  public DialerCall getActiveOrBackgroundCall() {
+    DialerCall call = getActiveCall();
+    if (call == null) {
+      call = getBackgroundCall();
+    }
+    return call;
+  }
+
+  public DialerCall getIncomingCall() {
+    DialerCall call = getFirstCallWithState(DialerCall.State.INCOMING);
+    if (call == null) {
+      call = getFirstCallWithState(DialerCall.State.CALL_WAITING);
+    }
+
+    return call;
+  }
+
+  public DialerCall getFirstCall() {
+    DialerCall result = getIncomingCall();
+    if (result == null) {
+      result = getPendingOutgoingCall();
+    }
+    if (result == null) {
+      result = getOutgoingCall();
+    }
+    if (result == null) {
+      result = getFirstCallWithState(DialerCall.State.ACTIVE);
+    }
+    if (result == null) {
+      result = getDisconnectingCall();
+    }
+    if (result == null) {
+      result = getDisconnectedCall();
+    }
+    return result;
+  }
+
+  public boolean hasLiveCall() {
+    DialerCall call = getFirstCall();
+    return call != null && call != getDisconnectingCall() && call != getDisconnectedCall();
+  }
+
+  /**
+   * Returns the first call found in the call map with the upgrade to video modification state.
+   *
+   * @return The first call with the upgrade to video state.
+   */
+  public DialerCall getVideoUpgradeRequestCall() {
+    for (DialerCall call : mCallById.values()) {
+      if (call.getSessionModificationState()
+          == DialerCall.SESSION_MODIFICATION_STATE_RECEIVED_UPGRADE_TO_VIDEO_REQUEST) {
+        return call;
+      }
+    }
+    return null;
+  }
+
+  public DialerCall getCallById(String callId) {
+    return mCallById.get(callId);
+  }
+
+  /** Returns first call found in the call map with the specified state. */
+  public DialerCall getFirstCallWithState(int state) {
+    return getCallWithState(state, 0);
+  }
+
+  /**
+   * Returns the [position]th call found in the call map with the specified state. TODO: Improve
+   * this logic to sort by call time.
+   */
+  public DialerCall getCallWithState(int state, int positionToFind) {
+    DialerCall retval = null;
+    int position = 0;
+    for (DialerCall call : mCallById.values()) {
+      if (call.getState() == state) {
+        if (position >= positionToFind) {
+          retval = call;
+          break;
+        } else {
+          position++;
+        }
+      }
+    }
+
+    return retval;
+  }
+
+  /**
+   * This is called when the service disconnects, either expectedly or unexpectedly. For the
+   * expected case, it's because we have no calls left. For the unexpected case, it is likely a
+   * crash of phone and we need to clean up our calls manually. Without phone, there can be no
+   * active calls, so this is relatively safe thing to do.
+   */
+  public void clearOnDisconnect() {
+    for (DialerCall call : mCallById.values()) {
+      final int state = call.getState();
+      if (state != DialerCall.State.IDLE
+          && state != DialerCall.State.INVALID
+          && state != DialerCall.State.DISCONNECTED) {
+
+        call.setState(DialerCall.State.DISCONNECTED);
+        call.setDisconnectCause(new DisconnectCause(DisconnectCause.UNKNOWN));
+        updateCallInMap(call);
+      }
+    }
+    notifyGenericListeners();
+  }
+
+  /**
+   * Called when the user has dismissed an error dialog. This indicates acknowledgement of the
+   * disconnect cause, and that any pending disconnects should immediately occur.
+   */
+  public void onErrorDialogDismissed() {
+    final Iterator<DialerCall> iterator = mPendingDisconnectCalls.iterator();
+    while (iterator.hasNext()) {
+      DialerCall call = iterator.next();
+      iterator.remove();
+      finishDisconnectedCall(call);
+    }
+  }
+
+  /**
+   * Processes an update for a single call.
+   *
+   * @param call The call to update.
+   */
+  private void onUpdateCall(DialerCall call) {
+    LogUtil.d("CallList.onUpdateCall", String.valueOf(call));
+    if (!mCallById.containsKey(call.getId()) && call.isExternalCall()) {
+      // When a regular call becomes external, it is removed from the call list, and there may be
+      // pending updates to Telecom which are queued up on the Telecom call's handler which we no
+      // longer wish to cause updates to the call in the CallList.  Bail here if the list of tracked
+      // calls doesn't contain the call which received the update.
+      return;
+    }
+
+    if (updateCallInMap(call)) {
+      LogUtil.i("CallList.onUpdateCall", String.valueOf(call));
+    }
+  }
+
+  /**
+   * Sends a generic notification to all listeners that something has changed. It is up to the
+   * listeners to call back to determine what changed.
+   */
+  private void notifyGenericListeners() {
+    for (Listener listener : mListeners) {
+      listener.onCallListChange(this);
+    }
+  }
+
+  private void notifyListenersOfDisconnect(DialerCall call) {
+    for (Listener listener : mListeners) {
+      listener.onDisconnect(call);
+    }
+  }
+
+  /**
+   * Updates the call entry in the local map.
+   *
+   * @return false if no call previously existed and no call was added, otherwise true.
+   */
+  private boolean updateCallInMap(DialerCall call) {
+    Objects.requireNonNull(call);
+
+    boolean updated = false;
+
+    if (call.getState() == DialerCall.State.DISCONNECTED) {
+      // update existing (but do not add!!) disconnected calls
+      if (mCallById.containsKey(call.getId())) {
+        // For disconnected calls, we want to keep them alive for a few seconds so that the
+        // UI has a chance to display anything it needs when a call is disconnected.
+
+        // Set up a timer to destroy the call after X seconds.
+        final Message msg = mHandler.obtainMessage(EVENT_DISCONNECTED_TIMEOUT, call);
+        mHandler.sendMessageDelayed(msg, getDelayForDisconnect(call));
+        mPendingDisconnectCalls.add(call);
+
+        mCallById.put(call.getId(), call);
+        mCallByTelecomCall.put(call.getTelecomCall(), call);
+        updated = true;
+      }
+    } else if (!isCallDead(call)) {
+      mCallById.put(call.getId(), call);
+      mCallByTelecomCall.put(call.getTelecomCall(), call);
+      updated = true;
+    } else if (mCallById.containsKey(call.getId())) {
+      mCallById.remove(call.getId());
+      mCallByTelecomCall.remove(call.getTelecomCall());
+      updated = true;
+    }
+
+    return updated;
+  }
+
+  private int getDelayForDisconnect(DialerCall call) {
+    if (call.getState() != DialerCall.State.DISCONNECTED) {
+      throw new IllegalStateException();
+    }
+
+    final int cause = call.getDisconnectCause().getCode();
+    final int delay;
+    switch (cause) {
+      case DisconnectCause.LOCAL:
+        delay = DISCONNECTED_CALL_SHORT_TIMEOUT_MS;
+        break;
+      case DisconnectCause.REMOTE:
+      case DisconnectCause.ERROR:
+        delay = DISCONNECTED_CALL_MEDIUM_TIMEOUT_MS;
+        break;
+      case DisconnectCause.REJECTED:
+      case DisconnectCause.MISSED:
+      case DisconnectCause.CANCELED:
+        // no delay for missed/rejected incoming calls and canceled outgoing calls.
+        delay = 0;
+        break;
+      default:
+        delay = DISCONNECTED_CALL_LONG_TIMEOUT_MS;
+        break;
+    }
+
+    return delay;
+  }
+
+  private boolean isCallDead(DialerCall call) {
+    final int state = call.getState();
+    return DialerCall.State.IDLE == state || DialerCall.State.INVALID == state;
+  }
+
+  /** Sets up a call for deletion and notifies listeners of change. */
+  private void finishDisconnectedCall(DialerCall call) {
+    if (mPendingDisconnectCalls.contains(call)) {
+      mPendingDisconnectCalls.remove(call);
+    }
+    call.setState(DialerCall.State.IDLE);
+    updateCallInMap(call);
+    notifyGenericListeners();
+  }
+
+  /**
+   * Notifies all video calls of a change in device orientation.
+   *
+   * @param rotation The new rotation angle (in degrees).
+   */
+  public void notifyCallsOfDeviceRotation(int rotation) {
+    for (DialerCall call : mCallById.values()) {
+      // First, ensure that the call videoState has video enabled (there is no need to set
+      // device orientation on a voice call which has not yet been upgraded to video).
+      // Second, ensure a VideoCall is set on the call so that the change can be sent to the
+      // provider (a VideoCall can be present for a call that does not currently have video,
+      // but can be upgraded to video).
+
+      // NOTE: is it necessary to use this order because getVideoCall references the class
+      // VideoProfile which is not available on APIs <23 (M).
+      if (VideoUtils.isVideoCall(call) && call.getVideoCall() != null) {
+        call.getVideoCall().setDeviceOrientation(rotation);
+      }
+    }
+  }
+
+  public void onInCallUiShown(boolean forFullScreenIntent) {
+    for (DialerCall call : mCallById.values()) {
+      call.getLatencyReport().onInCallUiShown(forFullScreenIntent);
+    }
+  }
+
+  /** Listener interface for any class that wants to be notified of changes to the call list. */
+  public interface Listener {
+
+    /**
+     * Called when a new incoming call comes in. This is the only method that gets called for
+     * incoming calls. Listeners that want to perform an action on incoming call should respond in
+     * this method because {@link #onCallListChange} does not automatically get called for incoming
+     * calls.
+     */
+    void onIncomingCall(DialerCall call);
+
+    /**
+     * Called when a new modify call request comes in This is the only method that gets called for
+     * modify requests.
+     */
+    void onUpgradeToVideo(DialerCall call);
+
+    /** Called when the session modification state of a call changes. */
+    void onSessionModificationStateChange(@SessionModificationState int newState);
+
+    /**
+     * Called anytime there are changes to the call list. The change can be switching call states,
+     * updating information, etc. This method will NOT be called for new incoming calls and for
+     * calls that switch to disconnected state. Listeners must add actions to those method
+     * implementations if they want to deal with those actions.
+     */
+    void onCallListChange(CallList callList);
+
+    /**
+     * Called when a call switches to the disconnected state. This is the only method that will get
+     * called upon disconnection.
+     */
+    void onDisconnect(DialerCall call);
+
+    void onWiFiToLteHandover(DialerCall call);
+
+    /**
+     * Called when a user is in a video call and the call is unable to be handed off successfully to
+     * WiFi
+     */
+    void onHandoverToWifiFailed(DialerCall call);
+  }
+
+  private class DialerCallListenerImpl implements DialerCallListener {
+
+    private final DialerCall mCall;
+
+    DialerCallListenerImpl(DialerCall call) {
+      Assert.isNotNull(call);
+      mCall = call;
+    }
+
+    @Override
+    public void onDialerCallDisconnect() {
+      if (updateCallInMap(mCall)) {
+        LogUtil.i("DialerCallListenerImpl.onDialerCallDisconnect", String.valueOf(mCall));
+        // notify those listening for all disconnects
+        notifyListenersOfDisconnect(mCall);
+      }
+    }
+
+    @Override
+    public void onDialerCallUpdate() {
+      Trace.beginSection("onUpdate");
+      onUpdateCall(mCall);
+      notifyGenericListeners();
+      Trace.endSection();
+    }
+
+    @Override
+    public void onDialerCallChildNumberChange() {}
+
+    @Override
+    public void onDialerCallLastForwardedNumberChange() {}
+
+    @Override
+    public void onDialerCallUpgradeToVideo() {
+      for (Listener listener : mListeners) {
+        listener.onUpgradeToVideo(mCall);
+      }
+    }
+
+    @Override
+    public void onWiFiToLteHandover() {
+      for (Listener listener : mListeners) {
+        listener.onWiFiToLteHandover(mCall);
+      }
+    }
+
+    @Override
+    public void onHandoverToWifiFailure() {
+      for (Listener listener : mListeners) {
+        listener.onHandoverToWifiFailed(mCall);
+      }
+    }
+
+    @Override
+    public void onDialerCallSessionModificationStateChange(@SessionModificationState int state) {
+      for (Listener listener : mListeners) {
+        listener.onSessionModificationStateChange(state);
+      }
+    }
+  }
+}