aerc/commands/account/split.go
Tim Culverhouse edd48c9981 split: clamp minimum split size to 1
The split command allows delta size changes, which triggers a condition
where the split can overflow into the dirlist. Clamp the minimum size of
a split or vsplit to "1" to prevent the view from overflowing, or
completely covering the message list. A split of 0 will still clear the
split.

Reported-by: Koni Marti <koni.marti@gmail.com>
Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>
Acked-by: Robin Jarry <robin@jarry.cc>
2022-10-20 22:17:18 +02:00

68 lines
1.2 KiB
Go

package account
import (
"errors"
"strconv"
"strings"
"git.sr.ht/~rjarry/aerc/widgets"
)
type Split struct{}
func init() {
register(Split{})
}
func (Split) Aliases() []string {
return []string{"split", "vsplit"}
}
func (Split) Complete(aerc *widgets.Aerc, args []string) []string {
return nil
}
func (Split) Execute(aerc *widgets.Aerc, args []string) error {
if len(args) > 2 {
return errors.New("Usage: [v]split n")
}
acct := aerc.SelectedAccount()
if acct == nil {
return errors.New("No account selected")
}
if acct.Messages().Empty() {
return nil
}
n := 0
var err error
if len(args) > 1 {
delta := false
if strings.HasPrefix(args[1], "+") || strings.HasPrefix(args[1], "-") {
delta = true
}
n, err = strconv.Atoi(args[1])
if err != nil {
return errors.New("Usage: [v]split n")
}
if delta {
n = acct.SplitSize() + n
// Maintain split direction when using deltas
if acct.SplitSize() > 0 {
args[0] = acct.SplitDirection()
}
}
}
if n == acct.SplitSize() {
// Repeated commands of the same size have the effect of
// toggling the split
n = 0
}
if n < 0 {
// Don't allow split to go negative
n = 1
}
if args[0] == "split" {
return acct.Split(n)
}
return acct.Vsplit(n)
}