fixed stop routine with syscall on windows

Author: MarvinJWendt

input.go

@@ -3,7 +3,6 @@ package keyboard
 import (
 	"errors"
 	"fmt"
-	"io"
 	"os"
 	"unicode/utf8"
 
@@ -163,17 +162,19 @@ var hexCodes = map[string]keys.Key{
 	"1b4f44": {Code: keys.Left, AltPressed: false},
 }
 
-func getKeyPress(input io.Reader) (keys.Key, error) {
+func getKeyPress() (keys.Key, error) {
 	var buf [256]byte
 
+	fmt.Println("a")
 	// Read
-	numBytes, err := input.Read(buf[:])
+	numBytes, err := inputTTY.Read(buf[:])
 	if err != nil {
 		if errors.Is(err, os.ErrClosed) {
 			return keys.Key{}, nil
 		}
 		return keys.Key{}, fmt.Errorf("could not read stdin: %w", err)
 	}
+	fmt.Println("b")
 
 	// Check if it's a sequence
 	if k, ok := sequences[string(buf[:numBytes])]; ok {

keyboard.go

@@ -3,6 +3,7 @@ package keyboard
 import (
 	"fmt"
 	"os"
+	"reflect"
 
 	"github.com/containerd/console"
 
@@ -79,8 +80,8 @@ func Listen(onKeyPress func(key keys.Key) (stop bool, err error)) error {
 			case keyInfo := <-mockChannel:
 				stopRoutine, _ = onKeyPress(keyInfo)
 				if stopRoutine {
+					closeInput()
 					inputTTY.Close()
-					onKeyPress(keys.Key{Code: keys.Null})
 				}
 			}
 		}
@@ -92,12 +93,13 @@ func Listen(onKeyPress func(key keys.Key) (stop bool, err error)) error {
 	}
 
 	for !stopRoutine {
-		key, err := getKeyPress(inputTTY)
+		key, err := getKeyPress()
 		if err != nil {
 			return err
 		}
 
-		if key.Code == keys.Null {
+		// check if returned key is empty
+		if reflect.DeepEqual(key, keys.Key{}) {
 			return nil
 		}
 

utils.go

@@ -0,0 +1,8 @@
+//go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
+// +build darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package keyboard
+
+func closeInput() {
+
+}

utils_windows.go

@@ -0,0 +1,7 @@
+package keyboard
+
+import "syscall"
+
+func closeInput() {
+	syscall.CancelIoEx(syscall.Handle(inputTTY.Fd()), nil)
+}