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