Refactor: Rename NanoKVM to BatchuKVM and update server URL

server/service/hid/mouse.go

@@ -0,0 +1,82 @@
+package hid
+
+import (
+	"encoding/binary"
+
+	log "github.com/sirupsen/logrus"
+)
+
+const (
+	MouseUp = iota
+	MouseDown
+	MouseMoveAbsolute
+	MouseMoveRelative
+	MouseScroll
+)
+
+var mouseButtonMap = map[byte]bool{
+	0x01: true,
+	0x02: true,
+	0x04: true,
+}
+
+func (h *Hid) Mouse(queue <-chan []int) {
+	for event := range queue {
+
+		switch event[0] {
+		case MouseDown:
+			h.mouseDown(event)
+		case MouseUp:
+			h.mouseUp()
+		case MouseMoveAbsolute:
+			h.mouseMoveAbsolute(event)
+		case MouseMoveRelative:
+			h.mouseMoveRelative(event)
+		case MouseScroll:
+			h.mouseScroll(event)
+		default:
+			log.Debugf("invalid mouse event: %v", event)
+		}
+	}
+}
+
+func (h *Hid) mouseDown(event []int) {
+	button := byte(event[1])
+
+	if _, ok := mouseButtonMap[button]; !ok {
+		log.Errorf("invalid mouse button: %v", event)
+		return
+	}
+
+	data := []byte{button, 0, 0, 0}
+	h.WriteHid1(data)
+}
+
+func (h *Hid) mouseUp() {
+	data := []byte{0, 0, 0, 0}
+	h.WriteHid1(data)
+}
+
+func (h *Hid) mouseScroll(event []int) {
+	direction := 0x01
+	if event[3] > 0 {
+		direction = -0x1
+	}
+
+	data := []byte{0, 0, 0, byte(direction)}
+	h.WriteHid1(data)
+}
+func (h *Hid) mouseMoveAbsolute(event []int) {
+	x := make([]byte, 2)
+	y := make([]byte, 2)
+	binary.LittleEndian.PutUint16(x, uint16(event[2]))
+	binary.LittleEndian.PutUint16(y, uint16(event[3]))
+
+	data := []byte{0, x[0], x[1], y[0], y[1], 0}
+	h.WriteHid2(data)
+}
+
+func (h *Hid) mouseMoveRelative(event []int) {
+	data := []byte{byte(event[1]), byte(event[2]), byte(event[3]), 0}
+	h.WriteHid1(data)
+}