Add getDeselectableMediaDevice()

-Add test case

Bug: 157098549
Test: make -j50 RunSettingsLibRoboTests
Change-Id: I47682997af51844e7811dd108297b7c13a60cd53

packages/SettingsLib/src/com/android/settingslib/media/InfoMediaManager.java

@@ -218,6 +218,33 @@ public class InfoMediaManager extends MediaManager {
         return deviceList;
     }
 
+    /**
+     * Get the MediaDevice list that can be removed from current media session.
+     *
+     * @return list of MediaDevice
+     */
+    List<MediaDevice> getDeselectableMediaDevice() {
+        final List<MediaDevice> deviceList = new ArrayList<>();
+        if (TextUtils.isEmpty(mPackageName)) {
+            Log.d(TAG, "getDeselectableMediaDevice() package name is null or empty!");
+            return deviceList;
+        }
+
+        final RoutingSessionInfo info = getRoutingSessionInfo();
+        if (info != null) {
+            for (MediaRoute2Info route : mRouterManager.getDeselectableRoutes(info)) {
+                deviceList.add(new InfoMediaDevice(mContext, mRouterManager,
+                        route, mPackageName));
+                Log.d(TAG, route.getName() + " is deselectable for " + mPackageName);
+            }
+            return deviceList;
+        }
+        Log.d(TAG, "getDeselectableMediaDevice() cannot found deselectable MediaDevice from : "
+                + mPackageName);
+
+        return deviceList;
+    }
+
     /**
      * Get the MediaDevice list that has been selected to current media.
      *

packages/SettingsLib/src/com/android/settingslib/media/LocalMediaManager.java

@@ -307,6 +307,15 @@ public class LocalMediaManager implements BluetoothCallback {
         return mInfoMediaManager.getSelectableMediaDevice();
     }
 
+    /**
+     * Get the MediaDevice list that can be removed from current media session.
+     *
+     * @return list of MediaDevice
+     */
+    public List<MediaDevice> getDeselectableMediaDevice() {
+        return mInfoMediaManager.getDeselectableMediaDevice();
+    }
+
     /**
      * Release session to stop playing media on MediaDevice.
      */

packages/SettingsLib/tests/robotests/src/com/android/settingslib/media/InfoMediaManagerTest.java

@@ -415,6 +415,31 @@ public class InfoMediaManagerTest {
         assertThat(mInfoMediaManager.getSelectableMediaDevice()).isEmpty();
     }
 
+    @Test
+    public void getDeselectableMediaDevice_packageNameIsNull_returnFalse() {
+        mInfoMediaManager.mPackageName = null;
+
+        assertThat(mInfoMediaManager.getDeselectableMediaDevice()).isEmpty();
+    }
+
+    @Test
+    public void getDeselectableMediaDevice_checkList() {
+        final List<RoutingSessionInfo> routingSessionInfos = new ArrayList<>();
+        final RoutingSessionInfo info = mock(RoutingSessionInfo.class);
+        routingSessionInfos.add(info);
+        final List<MediaRoute2Info> mediaRoute2Infos = new ArrayList<>();
+        final MediaRoute2Info mediaRoute2Info = mock(MediaRoute2Info.class);
+        mediaRoute2Infos.add(mediaRoute2Info);
+        mShadowRouter2Manager.setRoutingSessions(routingSessionInfos);
+        mShadowRouter2Manager.setDeselectableRoutes(mediaRoute2Infos);
+        when(mediaRoute2Info.getName()).thenReturn(TEST_NAME);
+
+        final List<MediaDevice> mediaDevices = mInfoMediaManager.getDeselectableMediaDevice();
+
+        assertThat(mediaDevices.size()).isEqualTo(1);
+        assertThat(mediaDevices.get(0).getName()).isEqualTo(TEST_NAME);
+    }
+
     @Test
     public void adjustSessionVolume_routingSessionInfoIsNull_noCrash() {
         mInfoMediaManager.adjustSessionVolume(null, 10);

packages/SettingsLib/tests/robotests/testutils/com/android/settingslib/testutils/shadow/ShadowRouter2Manager.java

@@ -15,6 +15,7 @@
  */
 package com.android.settingslib.testutils.shadow;
 
+import android.annotation.NonNull;
 import android.media.MediaRoute2Info;
 import android.media.MediaRouter2Manager;
 import android.media.RoutingSessionInfo;
@@ -31,6 +32,7 @@ public class ShadowRouter2Manager {
 
     private List<MediaRoute2Info> mAvailableRoutes;
     private List<MediaRoute2Info> mAllRoutes;
+    private List<MediaRoute2Info> mDeselectableRoutes;
     private List<RoutingSessionInfo> mActiveSessions;
     private List<RoutingSessionInfo> mRoutingSessions;
 
@@ -70,6 +72,15 @@ public class ShadowRouter2Manager {
         mRoutingSessions = infos;
     }
 
+    @Implementation
+    public List<MediaRoute2Info> getDeselectableRoutes(@NonNull RoutingSessionInfo sessionInfo) {
+        return mDeselectableRoutes;
+    }
+
+    public void setDeselectableRoutes(List<MediaRoute2Info> routes) {
+        mDeselectableRoutes = routes;
+    }
+
     public static ShadowRouter2Manager getShadow() {
         return (ShadowRouter2Manager) Shadow.extract(
                 MediaRouter2Manager.getInstance(RuntimeEnvironment.application));