neko/server/pkg/xinput/xinput.go
2024-06-23 17:48:14 +02:00

123 lines
2.2 KiB
Go

/* custom xf86 input driver communication protocol */
package xinput
import (
"fmt"
"net"
"sync"
"time"
)
type driver struct {
mu sync.Mutex
socket string
conn net.Conn
debounceTouchIds map[uint32]time.Time
}
func NewDriver(socket string) Driver {
return &driver{
socket: socket,
debounceTouchIds: make(map[uint32]time.Time),
}
}
func (d *driver) Connect() error {
c, err := net.Dial("unix", d.socket)
if err != nil {
return err
}
d.conn = c
return nil
}
func (d *driver) Close() error {
return d.conn.Close()
}
func (d *driver) Debounce(duration time.Duration) {
d.mu.Lock()
defer d.mu.Unlock()
t := time.Now()
for touchId, start := range d.debounceTouchIds {
if t.Sub(start) < duration {
continue
}
msg := Message{
_type: XI_TouchEnd,
touchId: touchId,
x: -1,
y: -1,
}
_, _ = d.conn.Write(msg.Pack())
delete(d.debounceTouchIds, touchId)
}
}
func (d *driver) TouchBegin(touchId uint32, x, y int, pressure uint8) error {
d.mu.Lock()
defer d.mu.Unlock()
if _, ok := d.debounceTouchIds[touchId]; ok {
return fmt.Errorf("debounced touch id %v", touchId)
}
d.debounceTouchIds[touchId] = time.Now()
msg := Message{
_type: XI_TouchBegin,
touchId: touchId,
x: int32(x),
y: int32(y),
pressure: pressure,
}
_, err := d.conn.Write(msg.Pack())
return err
}
func (d *driver) TouchUpdate(touchId uint32, x, y int, pressure uint8) error {
d.mu.Lock()
defer d.mu.Unlock()
if _, ok := d.debounceTouchIds[touchId]; !ok {
return fmt.Errorf("unknown touch id %v", touchId)
}
d.debounceTouchIds[touchId] = time.Now()
msg := Message{
_type: XI_TouchUpdate,
touchId: touchId,
x: int32(x),
y: int32(y),
pressure: pressure,
}
_, err := d.conn.Write(msg.Pack())
return err
}
func (d *driver) TouchEnd(touchId uint32, x, y int, pressure uint8) error {
d.mu.Lock()
defer d.mu.Unlock()
if _, ok := d.debounceTouchIds[touchId]; !ok {
return fmt.Errorf("unknown touch id %v", touchId)
}
delete(d.debounceTouchIds, touchId)
msg := Message{
_type: XI_TouchEnd,
touchId: touchId,
x: int32(x),
y: int32(y),
pressure: pressure,
}
_, err := d.conn.Write(msg.Pack())
return err
}