From 3f42c61ead715884ac6b1f85c0b6054ff437646d Mon Sep 17 00:00:00 2001
From: Javier <dev.git@javispedro.com>
Date: Thu, 1 Nov 2018 13:01:39 +0100
Subject: Initial import

---
 .../com/javispedro/vndroid/PointerEventOutput.java | 101 +++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 app/src/main/java/com/javispedro/vndroid/PointerEventOutput.java

(limited to 'app/src/main/java/com/javispedro/vndroid/PointerEventOutput.java')

diff --git a/app/src/main/java/com/javispedro/vndroid/PointerEventOutput.java b/app/src/main/java/com/javispedro/vndroid/PointerEventOutput.java
new file mode 100644
index 0000000..f380671
--- /dev/null
+++ b/app/src/main/java/com/javispedro/vndroid/PointerEventOutput.java
@@ -0,0 +1,101 @@
+package com.javispedro.vndroid;
+
+import android.accessibilityservice.AccessibilityService;
+import android.accessibilityservice.GestureDescription;
+import android.graphics.Path;
+import android.os.SystemClock;
+import android.util.Log;
+
+public class PointerEventOutput extends AccessibilityService.GestureResultCallback {
+    private final String TAG = PointerEventOutput.class.getSimpleName();
+
+    private boolean btnPressed = false;
+
+    private void dispatchGesture(GestureDescription gesture) {
+        ControlService service = ControlService.getInstance();
+        if (service != null) {
+            if (!service.dispatchGesture(gesture, this, null)) {
+                Log.w(TAG, "gesture not dispatched");
+            }
+        } else {
+            Log.e(TAG, "no controlservice");
+        }
+    }
+
+    private long lastTime = 0;
+    private GestureDescription lastGesture = null;
+    private int lastX = -1, lastY = -1;
+
+    private void pointerGesture(boolean cont, int x, int y, long curTime, boolean willContinue) {
+        Path path = new Path();
+        long duration = 1;
+
+        if (cont && lastGesture == null) {
+            Log.w(TAG, "continuing gesture but no previous data");
+        }
+
+        if (cont && lastGesture != null) {
+            assert lastX != -1 && lastY != -1;
+            path.moveTo(lastX, lastY);
+            duration = curTime - lastTime;
+            assert duration > 0;
+        } else {
+            path.moveTo(x, y);
+        }
+
+        path.lineTo(x, y);
+
+        GestureDescription.Builder builder = new GestureDescription.Builder();
+        GestureDescription.StrokeDescription stroke;
+        if (cont && lastGesture != null) {
+            stroke = lastGesture.getStroke(0);
+            stroke = stroke.continueStroke(path, 0, duration, willContinue);
+        } else {
+            stroke = new GestureDescription.StrokeDescription(path, 0, duration, willContinue);
+        }
+        builder.addStroke(stroke);
+        GestureDescription gesture = builder.build();
+        dispatchGesture(gesture);
+
+        if (willContinue) {
+            lastGesture = gesture;
+            lastTime = curTime;
+            lastX = x;
+            lastY = y;
+        } else {
+            lastGesture = null;
+            lastTime = 0;
+            lastX = -1;
+            lastY = -1;
+        }
+    }
+
+    public void postPointerEvent(byte buttonMask, int x, int y) {
+        final long curTime = SystemClock.uptimeMillis();
+
+        if ((buttonMask & 1) != 0) {
+            // Main button pressed
+            if (!btnPressed) {
+                pointerGesture(false, x, y, curTime, true);
+                btnPressed = true;
+            } else {
+                // Button moved while pressed
+                pointerGesture(true, x, y, curTime, true);
+            }
+        } else if (btnPressed) {
+            // Button was pressed but now released
+            pointerGesture(true, x, y, curTime, false);
+
+            btnPressed = false;
+        }
+    }
+
+    @Override
+    public void onCompleted(GestureDescription gestureDescription) {
+    }
+
+    @Override
+    public void onCancelled(GestureDescription gestureDescription) {
+        Log.d(TAG, "gesture cancelled");
+    }
+}
-- 
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