Expose active calls from in call UI

Dual SIM features need to know what phone account the current call is using because usually only one SIM can be in a call at the same time.

TEST=TAP
Bug: 69675796,72618783
Test: TAP
PiperOrigin-RevId: 194121273
Change-Id: I512eb7aca2050f38449b0a911dea9cee9b5ffdb5
diff --git a/java/com/android/incallui/ActiveCallsCallListListener.java b/java/com/android/incallui/ActiveCallsCallListListener.java
new file mode 100644
index 0000000..ce9f9a3
--- /dev/null
+++ b/java/com/android/incallui/ActiveCallsCallListListener.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2018 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;
+
+import android.content.Context;
+import android.support.annotation.NonNull;
+import com.android.dialer.activecalls.ActiveCallInfo;
+import com.android.dialer.activecalls.ActiveCallsComponent;
+import com.android.incallui.call.CallList;
+import com.android.incallui.call.DialerCall;
+import com.android.incallui.call.DialerCall.State;
+import com.google.common.base.Optional;
+import com.google.common.collect.ImmutableList;
+
+/** Updates {@link com.android.dialer.activecalls.ActiveCalls} */
+@SuppressWarnings("Guava")
+public class ActiveCallsCallListListener implements CallList.Listener {
+
+  private final Context appContext;
+
+  ActiveCallsCallListListener(Context appContext) {
+    this.appContext = appContext;
+  }
+
+  @Override
+  public void onIncomingCall(DialerCall call) {}
+
+  @Override
+  public void onUpgradeToVideo(DialerCall call) {}
+
+  @Override
+  public void onSessionModificationStateChange(DialerCall call) {}
+
+  @Override
+  public void onCallListChange(CallList callList) {
+    ImmutableList.Builder<ActiveCallInfo> activeCalls = ImmutableList.builder();
+    for (DialerCall call : callList.getAllCalls()) {
+      if (call.getState() != State.DISCONNECTED) {
+        activeCalls.add(
+            ActiveCallInfo.builder()
+                .setPhoneAccountHandle(Optional.fromNullable(call.getAccountHandle()))
+                .build());
+      }
+    }
+    ActiveCallsComponent.get(appContext).activeCalls().setActiveCalls(activeCalls.build());
+  }
+
+  @Override
+  public void onDisconnect(DialerCall call) {}
+
+  @Override
+  public void onWiFiToLteHandover(DialerCall call) {}
+
+  @Override
+  public void onHandoverToWifiFailed(DialerCall call) {}
+
+  @Override
+  public void onInternationalCallOnWifi(@NonNull DialerCall call) {}
+}
diff --git a/java/com/android/incallui/InCallPresenter.java b/java/com/android/incallui/InCallPresenter.java
index 5e08c69..a67dab5 100644
--- a/java/com/android/incallui/InCallPresenter.java
+++ b/java/com/android/incallui/InCallPresenter.java
@@ -197,6 +197,7 @@
   private InCallCameraManager inCallCameraManager;
   private FilteredNumberAsyncQueryHandler filteredQueryHandler;
   private CallList.Listener spamCallListListener;
+  private CallList.Listener activeCallsListener;
   /** Whether or not we are currently bound and waiting for Telecom to send us a new call. */
   private boolean boundAndWaitingForOutgoingCall;
   /** Determines if the InCall UI is in fullscreen mode or not. */
@@ -383,6 +384,8 @@
         new SpamCallListListener(
             context, DialerExecutorComponent.get(context).dialerExecutorFactory());
     this.callList.addListener(spamCallListListener);
+    activeCallsListener = new ActiveCallsCallListListener(context);
+    this.callList.addListener(activeCallsListener);
 
     VideoPauseController.getInstance().setUp(this);
 
@@ -858,6 +861,7 @@
           callList.getActiveOrBackgroundCall() != null || callList.getOutgoingCall() != null;
       inCallActivity.dismissKeyguard(hasCall);
     }
+
     Trace.endSection();
   }
 
diff --git a/java/com/android/incallui/call/DialerCall.java b/java/com/android/incallui/call/DialerCall.java
index c153503..9dfe7ab 100644
--- a/java/com/android/incallui/call/DialerCall.java
+++ b/java/com/android/incallui/call/DialerCall.java
@@ -157,7 +157,7 @@
   private String lastForwardedNumber;
   private boolean isCallForwarded;
   private String callSubject;
-  private PhoneAccountHandle phoneAccountHandle;
+  @Nullable private PhoneAccountHandle phoneAccountHandle;
   @CallHistoryStatus private int callHistoryStatus = CALL_HISTORY_STATUS_UNKNOWN;
   private boolean isSpam;
   private boolean isBlocked;