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