Add isCapturing() method to mouse capture providers

app/src/main/java/com/limelight/binding/input/capture/AndroidNativePointerCaptureProvider.java

@@ -21,17 +21,24 @@ public class AndroidNativePointerCaptureProvider extends InputCaptureProvider {
 
     @Override
     public void enableCapture() {
+        super.enableCapture();
         targetView.requestPointerCapture();
     }
 
     @Override
     public void disableCapture() {
+        super.disableCapture();
         targetView.releasePointerCapture();
     }
 
+    @Override
+    public boolean isCapturing() {
+        return targetView.hasPointerCapture();
+    }
+
     @Override
     public boolean eventHasRelativeMouseAxes(MotionEvent event) {
-        return (event.getSource() & InputDevice.SOURCE_MOUSE_RELATIVE) != 0;
+        return event.getSource() == InputDevice.SOURCE_MOUSE_RELATIVE;
     }
 
     @Override

app/src/main/java/com/limelight/binding/input/capture/AndroidPointerIconCaptureProvider.java

@@ -33,11 +33,13 @@ public class AndroidPointerIconCaptureProvider extends InputCaptureProvider {
 
     @Override
     public void enableCapture() {
+        super.enableCapture();
         setPointerIconOnAllViews(PointerIcon.getSystemIcon(context, PointerIcon.TYPE_NULL));
     }
 
     @Override
     public void disableCapture() {
+        super.disableCapture();
         setPointerIconOnAllViews(null);
     }
 

app/src/main/java/com/limelight/binding/input/capture/InputCaptureProvider.java

@@ -3,10 +3,21 @@ package com.limelight.binding.input.capture;
 import android.view.MotionEvent;
 
 public abstract class InputCaptureProvider {
-    public abstract void enableCapture();
+    protected boolean isCapturing;
-    public abstract void disableCapture();
+
+    public void enableCapture() {
+        isCapturing = true;
+    }
+    public void disableCapture() {
+        isCapturing = false;
+    }
+
     public void destroy() {}
 
+    public boolean isCapturing() {
+        return isCapturing;
+    }
+
     public boolean eventHasRelativeMouseAxes(MotionEvent event) {
         return false;
     }

app/src/main/java/com/limelight/binding/input/capture/NullCaptureProvider.java

@@ -1,10 +1,4 @@
 package com.limelight.binding.input.capture;
 
 
-public class NullCaptureProvider extends InputCaptureProvider {
+public class NullCaptureProvider extends InputCaptureProvider {}
-    @Override
-    public void enableCapture() {}
-
-    @Override
-    public void disableCapture() {}
-}

app/src/main/java/com/limelight/binding/input/capture/ShieldCaptureProvider.java

@@ -63,11 +63,13 @@ public class ShieldCaptureProvider extends InputCaptureProvider {
 
     @Override
     public void enableCapture() {
+        super.enableCapture();
         setCursorVisibility(false);
     }
 
     @Override
     public void disableCapture() {
+        super.disableCapture();
         setCursorVisibility(true);
     }
 

app/src/main/java/com/limelight/binding/input/evdev/EvdevCaptureProvider.java

@@ -221,6 +221,7 @@ public class EvdevCaptureProvider extends InputCaptureProvider {
 
     @Override
     public void enableCapture() {
+        super.enableCapture();
         if (!started) {
             // Start the handler thread if it's our first time
             // capturing
@@ -247,6 +248,7 @@ public class EvdevCaptureProvider extends InputCaptureProvider {
 
     @Override
     public void disableCapture() {
+        super.disableCapture();
         // This may be called on the main thread
         runInNetworkSafeContextSynchronously(new Runnable() {
             @Override