Changed the type of KeyEvent.Code field

keyEvents.go

@@ -153,7 +153,7 @@ type KeyEvent struct {
 
 	// Code holds a string that identifies the physical key being pressed. The value is not affected
 	// by the current keyboard layout or modifier state, so a particular key will always return the same value.
-	Code string
+	Code KeyCode
 
 	// Repeat == true if a key has been depressed long enough to trigger key repetition, otherwise false.
 	Repeat bool
@@ -180,7 +180,8 @@ func (event *KeyEvent) init(data DataObject) {
 	}
 
 	event.Key, _ = data.PropertyValue("key")
-	event.Code, _ = data.PropertyValue("code")
+	code, _ := data.PropertyValue("code")
+	event.Code = KeyCode(code)
 	event.TimeStamp = getTimeStamp(data)
 	event.Repeat = getBool("repeat")
 	event.CtrlKey = getBool("ctrlKey")

popup.go

@@ -622,8 +622,8 @@ func (popup *popupData) onDismiss() {
 
 func (popup *popupData) keyEvent(event KeyEvent) bool {
 	if !event.AltKey && !event.CtrlKey && !event.ShiftKey && !event.MetaKey {
-		switch strings.ToLower(event.Code) {
-		case "enter":
+		switch event.Code {
+		case EnterKey:
 			for _, button := range popup.buttons {
 				if button.Type == DefaultButton && button.OnClick != nil {
 					button.OnClick(popup)
@@ -631,7 +631,7 @@ func (popup *popupData) keyEvent(event KeyEvent) bool {
 				}
 			}
 
-		case "escape":
+		case EscapeKey:
 			if popup.cancelable {
 				popup.Dismiss()
 				return true