Add vertical mouse scrolling support

Author: cgutman

libs/limelight-common.jar

@@ -503,9 +503,19 @@ public boolean onGenericMotionEvent(MotionEvent event) {
 			}		
 		}
 		else if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0)
-		{	
-			// Send a mouse move update (if neccessary)
-			updateMousePosition((int)event.getX(), (int)event.getY());
+		{
+			switch (event.getActionMasked())
+			{
+			case MotionEvent.ACTION_HOVER_MOVE:
+				// Send a mouse move update (if neccessary)
+				updateMousePosition((int)event.getX(), (int)event.getY());
+				break;
+			case MotionEvent.ACTION_SCROLL:
+				// Send the vertical scroll packet
+				byte vScrollClicks = (byte) event.getAxisValue(MotionEvent.AXIS_VSCROLL);
+				conn.sendMouseScroll(vScrollClicks);
+				break;
+			}
 			return true;
 		}
 
@@ -680,4 +690,9 @@ public void mouseButtonEvent(int buttonId, boolean down) {
 			conn.sendMouseButtonUp(buttonIndex);
 		}
 	}
+
+	@Override
+	public void mouseScroll(byte amount) {
+		conn.sendMouseScroll(amount);
+	}
 }

src/com/limelight/Game.java

@@ -12,6 +12,7 @@ public class EvdevEvent {
 	/* Relative axes */
 	public static final short REL_X = 0x00;
 	public static final short REL_Y = 0x01;
+	public static final short REL_WHEEL = 0x08;
 
 	/* Buttons */
 	public static final short BTN_LEFT = 0x110;

src/com/limelight/binding/input/evdev/EvdevEvent.java

@@ -45,6 +45,7 @@ public void run() {
 				try {
 					int deltaX = 0;
 					int deltaY = 0;
+					byte deltaScroll = 0;
 
 					while (!isInterrupted() && !shutdown) {
 						EvdevEvent event = EvdevReader.read(fd, buffer);
@@ -59,6 +60,10 @@ public void run() {
 								listener.mouseMove(deltaX, deltaY);
 								deltaX = deltaY = 0;
 							}
+							if (deltaScroll != 0) {
+								listener.mouseScroll(deltaScroll);
+								deltaScroll = 0;
+							}
 							break;
 
 						case EvdevEvent.EV_REL:
@@ -70,6 +75,9 @@ public void run() {
 							case EvdevEvent.REL_Y:
 								deltaY = event.value;
 								break;
+							case EvdevEvent.REL_WHEEL:
+								deltaScroll = (byte) event.value;
+								break;
 							}
 							break;
 

src/com/limelight/binding/input/evdev/EvdevHandler.java

@@ -7,4 +7,5 @@ public interface EvdevListener {
 
 	public void mouseMove(int deltaX, int deltaY);
 	public void mouseButtonEvent(int buttonId, boolean down);
+	public void mouseScroll(byte amount);
 }