82 lines
1.4 KiB
Go
82 lines
1.4 KiB
Go
|
package keyboard
|
||
|
|
|
||
|
|
import (
|
||
|
|
"log"
|
||
|
|
"os"
|
||
|
|
|
||
|
|
"github.com/hybridgroup/gobot"
|
||
|
|
)
|
||
|
|
|
||
|
|
var _ gobot.Driver = (*KeyboardDriver)(nil)
|
||
|
|
|
||
|
|
type KeyboardDriver struct {
|
||
|
|
name string
|
||
|
|
connect func(*KeyboardDriver) (err error)
|
||
|
|
listen func(*KeyboardDriver)
|
||
|
|
stdin *os.File
|
||
|
|
gobot.Eventer
|
||
|
|
}
|
||
|
|
|
||
|
|
func NewKeyboardDriver(name string) *KeyboardDriver {
|
||
|
|
k := &KeyboardDriver{
|
||
|
|
name: name,
|
||
|
|
connect: func(k *KeyboardDriver) (err error) {
|
||
|
|
if err := configure(); err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
k.stdin = os.Stdin
|
||
|
|
return
|
||
|
|
},
|
||
|
|
listen: func(k *KeyboardDriver) {
|
||
|
|
ctrlc := bytes{3}
|
||
|
|
|
||
|
|
for {
|
||
|
|
var keybuf bytes
|
||
|
|
k.stdin.Read(keybuf[0:3])
|
||
|
|
|
||
|
|
if keybuf == ctrlc {
|
||
|
|
proc, err := os.FindProcess(os.Getpid())
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
proc.Signal(os.Interrupt)
|
||
|
|
break
|
||
|
|
}
|
||
|
|
|
||
|
|
gobot.Publish(k.Event("key"), Parse(keybuf))
|
||
|
|
|
||
|
|
}
|
||
|
|
},
|
||
|
|
Eventer: gobot.NewEventer(),
|
||
|
|
}
|
||
|
|
|
||
|
|
k.AddEvent("key")
|
||
|
|
|
||
|
|
return k
|
||
|
|
}
|
||
|
|
|
||
|
|
func (k *KeyboardDriver) Name() string { return k.name }
|
||
|
|
func (k *KeyboardDriver) Connection() gobot.Connection { return nil }
|
||
|
|
|
||
|
|
// Start initializes keyboard by grabbing key events as they come in and
|
||
|
|
// publishing a key event
|
||
|
|
func (k *KeyboardDriver) Start() (errs []error) {
|
||
|
|
if err := k.connect(k); err != nil {
|
||
|
|
return []error{err}
|
||
|
|
}
|
||
|
|
|
||
|
|
go k.listen(k)
|
||
|
|
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
// Halt stops camera driver
|
||
|
|
func (k *KeyboardDriver) Halt() (errs []error) {
|
||
|
|
if originalState != "" {
|
||
|
|
return restore()
|
||
|
|
}
|
||
|
|
return
|
||
|
|
}
|