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main.go
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main.go
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package tty10
import (
"os"
"time"
"golang.org/x/term"
)
type Tty struct {
done chan struct{}
disable func()
}
func (M *Tty) Open(onSize func(int)) error {
var err error
stdin := int(os.Stdin.Fd())
M.disable, err = enable(stdin)
if err != nil {
return err
}
M.done = make(chan struct{})
go func() {
ticker := time.NewTicker(time.Second)
for {
select {
case <-M.done:
ticker.Stop()
return
case <-ticker.C:
w, _, err := M.Size()
if err == nil {
onSize(w)
}
}
}
}()
return nil
}
func (M *Tty) GetKey() (string, error) {
stdin := int(os.Stdin.Fd())
oldState, err := term.MakeRaw(stdin)
if err != nil {
return "", err
}
defer term.Restore(stdin, oldState)
var buffer [100]byte
n, err := os.Stdin.Read(buffer[:])
if err != nil {
return "", err
}
return string(buffer[:n]), nil
}
func (M *Tty) Close() error {
if M.done != nil {
M.done <- struct{}{}
close(M.done)
}
if M.disable != nil {
M.disable()
M.disable = nil
}
return nil
}
func (M *Tty) Size() (int, int, error) {
return term.GetSize(int(os.Stderr.Fd()))
}