94 lines
1.5 KiB
Go
94 lines
1.5 KiB
Go
package keyboard
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import (
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"log"
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"os"
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"gobot.io/x/gobot"
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)
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const (
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// Key board event
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Key = "key"
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)
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// Driver is gobot software device to the keyboard
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type Driver struct {
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name string
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connect func(*Driver) (err error)
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listen func(*Driver)
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stdin *os.File
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gobot.Eventer
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}
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// NewDriver returns a new keyboard Driver.
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//
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func NewDriver() *Driver {
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k := &Driver{
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name: gobot.DefaultName("Keyboard"),
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connect: func(k *Driver) (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 *Driver) {
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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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k.Publish(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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// Name returns the Driver Name
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func (k *Driver) Name() string { return k.name }
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// SetName sets the Driver Name
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func (k *Driver) SetName(n string) { k.name = n }
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// Connection returns the Driver Connection
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func (k *Driver) 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 each as a key event
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func (k *Driver) Start() (err error) {
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if err = k.connect(k); err != nil {
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return 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 keyboard driver
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func (k *Driver) Halt() (err 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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