From 6bbd5558ef4d77ae65832d47deb82bb20b8ec22f Mon Sep 17 00:00:00 2001
From: timhypeng <timhypeng@google.com>
Date: Mon, 17 Feb 2020 14:53:45 +0800
Subject: [PATCH] Add getSelectedMediaDevice() API for output switcher

- To get the device list that has been selected to current media.

Bug: 146813761
Test: build pass
Change-Id: I39b0e23148dfd13914e882ccb2a95073c6e9b00b
---
 .../settingslib/media/InfoMediaManager.java   | 28 +++++++++++++++++++
 .../settingslib/media/LocalMediaManager.java  |  9 ++++++
 2 files changed, 37 insertions(+)

diff --git a/packages/SettingsLib/src/com/android/settingslib/media/InfoMediaManager.java b/packages/SettingsLib/src/com/android/settingslib/media/InfoMediaManager.java
index 5ff88ac4140fc..f69e4f5d76894 100644
--- a/packages/SettingsLib/src/com/android/settingslib/media/InfoMediaManager.java
+++ b/packages/SettingsLib/src/com/android/settingslib/media/InfoMediaManager.java
@@ -192,6 +192,34 @@ public class InfoMediaManager extends MediaManager {
         return deviceList;
     }
 
+    /**
+     * Get the MediaDevice list that has been selected to current media.
+     *
+     * @return list of MediaDevice
+     */
+    List<MediaDevice> getSelectedMediaDevice() {
+        final List<MediaDevice> deviceList = new ArrayList<>();
+        if (TextUtils.isEmpty(mPackageName)) {
+            Log.w(TAG, "getSelectedMediaDevice() package name is null or empty!");
+            return deviceList;
+        }
+
+        final RoutingSessionInfo info = getRoutingSessionInfo();
+        if (info != null) {
+            for (MediaRoute2Info route : mRouterManager.getControllerForSession(info)
+                    .getSelectedRoutes()) {
+                deviceList.add(new InfoMediaDevice(mContext, mRouterManager,
+                        route, mPackageName));
+            }
+            return deviceList;
+        }
+
+        Log.w(TAG, "getSelectedMediaDevice() cannot found selectable MediaDevice from : "
+                + mPackageName);
+
+        return deviceList;
+    }
+
     /**
      * Adjust the volume of {@link android.media.RoutingSessionInfo}.
      *
diff --git a/packages/SettingsLib/src/com/android/settingslib/media/LocalMediaManager.java b/packages/SettingsLib/src/com/android/settingslib/media/LocalMediaManager.java
index fc373a5a09214..617da6e0fcd04 100644
--- a/packages/SettingsLib/src/com/android/settingslib/media/LocalMediaManager.java
+++ b/packages/SettingsLib/src/com/android/settingslib/media/LocalMediaManager.java
@@ -281,6 +281,15 @@ public class LocalMediaManager implements BluetoothCallback {
         return mInfoMediaManager.getSelectableMediaDevice();
     }
 
+    /**
+     * Get the MediaDevice list that has been selected to current media.
+     *
+     * @return list of MediaDevice
+     */
+    public List<MediaDevice> getSelectedMediaDevice() {
+        return mInfoMediaManager.getSelectedMediaDevice();
+    }
+
     /**
      * Adjust the volume of session.
      *