Implement :select-message

commands/select-message.go

@@ -0,0 +1,31 @@
+package commands
+
+import (
+	"errors"
+	"strconv"
+
+	"git.sr.ht/~sircmpwn/aerc2/widgets"
+)
+
+func init() {
+	Register("select-message", SelectMessage)
+}
+
+func SelectMessage(aerc *widgets.Aerc, args []string) error {
+	if len(args) != 2 {
+		return errors.New("Usage: :select-message <n>")
+	}
+	var (
+		n   int = 1
+		err error
+	)
+	if len(args) > 1 {
+		n, err = strconv.Atoi(args[1])
+		if err != nil {
+			return errors.New("Usage: :select-message <n>")
+		}
+	}
+	acct := aerc.SelectedAccount()
+	acct.Messages().Select(n)
+	return nil
+}

widgets/msglist.go

@@ -112,6 +112,15 @@ func (ml *MessageList) SetStore(store *lib.MessageStore) {
 	ml.Invalidate()
 }
 
+func (ml *MessageList) Select(index int) {
+	ml.selected = index
+	for ; ml.selected < 0; ml.selected = len(ml.store.Uids) + ml.selected {
+	}
+	if ml.selected > len(ml.store.Uids) {
+		ml.selected = len(ml.store.Uids)
+	}
+}
+
 func (ml *MessageList) nextPrev(delta int) {
 	ml.selected += delta
 	if ml.selected < 0 {