Add Android N mouse capture support

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

@@ -0,0 +1,59 @@
+package com.limelight.binding.input.capture;
+
+import android.annotation.TargetApi;
+import android.app.Activity;
+import android.content.Context;
+import android.os.Build;
+import android.view.MotionEvent;
+import android.view.PointerIcon;
+import android.view.View;
+import android.view.ViewGroup;
+
+@TargetApi(Build.VERSION_CODES.N)
+public class AndroidCaptureProvider extends InputCaptureProvider {
+    private ViewGroup rootViewGroup;
+    private Context context;
+
+    public AndroidCaptureProvider(Activity activity) {
+        this.context = activity;
+        this.rootViewGroup = (ViewGroup) activity.getWindow().getDecorView();
+    }
+
+    public static boolean isCaptureProviderSupported() {
+        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.N;
+    }
+
+    private void setPointerIconOnAllViews(PointerIcon icon) {
+        for (int i = 0; i < rootViewGroup.getChildCount(); i++) {
+            View view = rootViewGroup.getChildAt(i);
+            view.setPointerIcon(icon);
+        }
+        rootViewGroup.setPointerIcon(icon);
+    }
+
+    @Override
+    public void enableCapture() {
+        setPointerIconOnAllViews(PointerIcon.getSystemIcon(context, PointerIcon.TYPE_NULL));
+    }
+
+    @Override
+    public void disableCapture() {
+        setPointerIconOnAllViews(null);
+    }
+
+    @Override
+    public boolean eventHasRelativeMouseAxes(MotionEvent event) {
+        return event.getAxisValue(MotionEvent.AXIS_RELATIVE_X) != 0 ||
+                event.getAxisValue(MotionEvent.AXIS_RELATIVE_Y) != 0;
+    }
+
+    @Override
+    public float getRelativeAxisX(MotionEvent event) {
+        return event.getAxisValue(MotionEvent.AXIS_RELATIVE_X);
+    }
+
+    @Override
+    public float getRelativeAxisY(MotionEvent event) {
+        return event.getAxisValue(MotionEvent.AXIS_RELATIVE_Y);
+    }
+}

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

@@ -8,11 +8,11 @@ import com.limelight.binding.input.evdev.EvdevListener;
 
 public class InputCaptureManager {
     public static InputCaptureProvider getInputCaptureProvider(Activity activity, EvdevListener rootListener) {
-        /*if (AndroidCaptureProvider.isCaptureProviderSupported()) {
+        if (AndroidCaptureProvider.isCaptureProviderSupported()) {
             LimeLog.info("Using Android N+ native mouse capture");
-            return new AndroidCaptureProvider();
+            return new AndroidCaptureProvider(activity);
         }
-        else*/ if (ShieldCaptureProvider.isCaptureProviderSupported()) {
+        else if (ShieldCaptureProvider.isCaptureProviderSupported()) {
             LimeLog.info("Using NVIDIA mouse capture extension");
             return new ShieldCaptureProvider(activity);
         }