Update VideoStreamManager to use VideoStreamingState

Author: bilal-alsharifi

android/sdl_android/src/main/java/com/smartdevicelink/managers/video/VideoStreamManager.java

@@ -65,6 +65,7 @@
 import com.smartdevicelink.proxy.rpc.enums.PredefinedWindows;
 import com.smartdevicelink.proxy.rpc.enums.SystemCapabilityType;
 import com.smartdevicelink.proxy.rpc.enums.TouchType;
+import com.smartdevicelink.proxy.rpc.enums.VideoStreamingState;
 import com.smartdevicelink.proxy.rpc.listeners.OnRPCNotificationListener;
 import com.smartdevicelink.streaming.video.SdlRemoteDisplay;
 import com.smartdevicelink.streaming.video.VideoStreamingParameters;
@@ -74,7 +75,6 @@
 
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.List;
 import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.concurrent.FutureTask;
@@ -90,13 +90,12 @@ public class VideoStreamManager extends BaseVideoStreamManager {
 	private float[] touchScalar = {1.0f,1.0f}; //x, y
 	private HapticInterfaceManager hapticManager;
 	private SdlMotionEvent sdlMotionEvent = null;
-	private HMILevel hmiLevel;
+	private OnHMIStatus currentOnHMIStatus;
 	private StreamingStateMachine stateMachine;
 	private VideoStreamingParameters parameters;
 	private IVideoStreamListener streamListener;
 	private boolean isTransportAvailable = false;
 	private boolean hasStarted;
-	private List<HMILevel> streamableLevels = Arrays.asList(HMILevel.HMI_FULL, HMILevel.HMI_LIMITED);
 
 	// INTERNAL INTERFACES
 
@@ -151,12 +150,10 @@ public void onNotified(RPCNotification notification) {
 				if (onHMIStatus.getWindowID() != null && onHMIStatus.getWindowID() != PredefinedWindows.DEFAULT_WINDOW.getValue()) {
 					return;
 				}
-				HMILevel prevHMILevel = hmiLevel;
-				hmiLevel = onHMIStatus.getHmiLevel();
-				if (streamableLevels.contains(hmiLevel)) {
-					checkState();
-				}
-				if (hasStarted && (streamableLevels.contains(prevHMILevel)) && (!streamableLevels.contains(hmiLevel))) {
+				OnHMIStatus prevOnHMIStatus = currentOnHMIStatus;
+				currentOnHMIStatus = onHMIStatus;
+				checkState();
+				if (hasStarted && (isHMIStateVideoStreamCapable(prevOnHMIStatus)) && (!isHMIStateVideoStreamCapable(currentOnHMIStatus))) {
 					internalInterface.stopVideoService();
 				}
 			}
@@ -183,7 +180,6 @@ public VideoStreamManager(ISdl internalInterface){
 		super(internalInterface);
 
 		virtualDisplayEncoder = new VirtualDisplayEncoder();
-		hmiLevel = HMILevel.HMI_NONE;
 
 		// Listen for video service events
 		internalInterface.addServiceListener(SessionType.NAV, serviceListener);
@@ -206,14 +202,19 @@ public void start(CompletionListener listener) {
 	private synchronized void checkState(){
 		if(this.getState() == SETTING_UP
 				&& isTransportAvailable
-				&& hmiLevel != null
-				&& streamableLevels.contains(hmiLevel)
+				&& isHMIStateVideoStreamCapable(currentOnHMIStatus)
 				&& parameters != null){
 			stateMachine.transitionToState(StreamingStateMachine.READY);
 			transitionToState(READY);
 		}
 	}
 
+	boolean isHMIStateVideoStreamCapable(OnHMIStatus onHMIStatus) {
+		HMILevel hmiLevel = (onHMIStatus != null && onHMIStatus.getHmiLevel() != null) ? onHMIStatus.getHmiLevel() : HMILevel.HMI_NONE;
+		VideoStreamingState videoStreamingState = (onHMIStatus != null && onHMIStatus.getVideoStreamingState() != null) ? onHMIStatus.getVideoStreamingState() : VideoStreamingState.STREAMABLE;
+		return (hmiLevel.equals(HMILevel.HMI_FULL) || hmiLevel.equals(HMILevel.HMI_LIMITED)) && videoStreamingState.equals(VideoStreamingState.STREAMABLE);
+	}
+
 	private void getVideoStreamingParams(){
 		if(internalInterface.getProtocolVersion().getMajor() >= 5) {
 			internalInterface.getCapability(SystemCapabilityType.VIDEO_STREAMING, new OnSystemCapabilityListener() {
@@ -305,13 +306,12 @@ public void onError(String info) {
 	 */
 	protected void startStreaming(VideoStreamingParameters parameters, boolean encrypted){
 		this.parameters = parameters;
-		if (!streamableLevels.contains(hmiLevel)) {
-			Log.e(TAG, "Cannot start video service if HMILevel is not FULL or LIMITED.");
+		if (!isHMIStateVideoStreamCapable(currentOnHMIStatus)) {
+			Log.e(TAG, "Cannot start video service in the current HMI status");
 			return;
 		}
 		//Start the video service
 		this.internalInterface.startVideoService(parameters, encrypted);
-
 	}
 
 	/**
@@ -401,15 +401,15 @@ public boolean isServiceActive(){
 	 * @return boolean (true = yes, false = no)
 	 */
 	public boolean isStreaming(){
-		return (stateMachine.getState() == StreamingStateMachine.STARTED) && (streamableLevels.contains(hmiLevel));
+		return (stateMachine.getState() == StreamingStateMachine.STARTED) && (isHMIStateVideoStreamCapable(currentOnHMIStatus));
 	}
 
 	/**
 	 * Check if video streaming has been paused due to app moving to background or manually stopped
 	 * @return boolean (true = not paused, false = paused)
 	 */
 	public boolean isPaused(){
-		return (hasStarted && stateMachine.getState() == StreamingStateMachine.STOPPED) || (!streamableLevels.contains(hmiLevel));
+		return (hasStarted && stateMachine.getState() == StreamingStateMachine.STOPPED) || (!isHMIStateVideoStreamCapable(currentOnHMIStatus));
 	}
 
 	/**