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

1 files changed, 34 insertions, 0 deletions

diff --git a/java/com/android/dialer/activecalls/ActiveCalls.java b/java/com/android/dialer/activecalls/ActiveCalls.java
new file mode 100644
index 000000000..600839c73
--- /dev/null
+++ b/java/com/android/dialer/activecalls/ActiveCalls.java
@@ -0,0 +1,34 @@
+/*
+ * 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.dialer.activecalls;
+
+import android.support.annotation.MainThread;
+import com.google.common.collect.ImmutableList;
+
+/** Exposes information about current active calls to the whole dialer. */
+public interface ActiveCalls {
+
+  /**
+   * Return a list of current active calls. Any call that is not disconnected is regarded as active.
+   * Ordering of elements are not guaranteed.
+   */
+  ImmutableList<ActiveCallInfo> getActiveCalls();
+
+  /** Should only be called by in call UI. */
+  @MainThread
+  void setActiveCalls(ImmutableList<ActiveCallInfo> activeCalls);
+}