Replace meta with alt automatically, update tcell

internal/action/bufpane.go

@@ -345,7 +345,7 @@ func (h *BufPane) HandleEvent(event tcell.Event) {
 	case *tcell.EventKey:
 		ke := KeyEvent{
 			code: e.Key(),
-			mod:  e.Modifiers(),
+			mod:  metaToAlt(e.Modifiers()),
 			r:    e.Rune(),
 		}
 
@@ -395,7 +395,7 @@ func (h *BufPane) HandleEvent(event tcell.Event) {
 		if !cancel {
 			me := MouseEvent{
 				btn: e.Buttons(),
-				mod: e.Modifiers(),
+				mod: metaToAlt(e.Modifiers()),
 			}
 			h.DoMouseEvent(me, e)
 		}

internal/action/events.go

@@ -36,6 +36,14 @@ type KeyEvent struct {
 	any  bool
 }
 
+func metaToAlt(mod tcell.ModMask) tcell.ModMask {
+	if mod&tcell.ModMeta != 0 {
+		mod &= ^tcell.ModMeta
+		mod |= tcell.ModAlt
+	}
+	return mod
+}
+
 func (k KeyEvent) Name() string {
 	if k.any {
 		return "<any>"
@@ -132,7 +140,7 @@ func ConstructEvent(event tcell.Event) (Event, error) {
 	case *tcell.EventKey:
 		return KeyEvent{
 			code: e.Key(),
-			mod:  e.Modifiers(),
+			mod:  metaToAlt(e.Modifiers()),
 			r:    e.Rune(),
 		}, nil
 	case *tcell.EventRaw:
@@ -142,7 +150,7 @@ func ConstructEvent(event tcell.Event) (Event, error) {
 	case *tcell.EventMouse:
 		return MouseEvent{
 			btn: e.Buttons(),
-			mod: e.Modifiers(),
+			mod: metaToAlt(e.Modifiers()),
 		}, nil
 	}
 	return nil, errors.New("No micro event equivalent")

internal/action/infopane.go

@@ -83,7 +83,7 @@ func (h *InfoPane) HandleEvent(event tcell.Event) {
 	case *tcell.EventKey:
 		ke := KeyEvent{
 			code: e.Key(),
-			mod:  e.Modifiers(),
+			mod:  metaToAlt(e.Modifiers()),
 			r:    e.Rune(),
 		}
 

internal/action/termpane.go

@@ -120,7 +120,7 @@ func (t *TermPane) HandleEvent(event tcell.Event) {
 	if e, ok := event.(*tcell.EventKey); ok {
 		ke := KeyEvent{
 			code: e.Key(),
-			mod:  e.Modifiers(),
+			mod:  metaToAlt(e.Modifiers()),
 			r:    e.Rune(),
 		}
 		action, more := TermBindings.NextEvent(ke, nil)