Implement basic tab completion support

Tab completion currently only works on commands. Contextual completion
will be added in the future.

1 files changed, 12 insertions, 2 deletions

diff --git a/commands/msgview/pipe.go b/commands/msgview/pipe.go
index a84cdf5..56c125b 100644
--- a/commands/msgview/pipe.go
+++ b/commands/msgview/pipe.go
@@ -12,11 +12,21 @@ import (
 	"git.sr.ht/~sircmpwn/aerc/widgets"
 )
 
+type Pipe struct{}
+
 func init() {
-	register("pipe", Pipe)
+	register(Pipe{})
+}
+
+func (_ Pipe) Aliases() []string {
+	return []string{"pipe"}
+}
+
+func (_ Pipe) Complete(aerc *widgets.Aerc, args []string) []string {
+	return nil
 }
 
-func Pipe(aerc *widgets.Aerc, args []string) error {
+func (_ Pipe) Execute(aerc *widgets.Aerc, args []string) error {
 	if len(args) < 2 {
 		return errors.New("Usage: :pipe <cmd> [args...]")
 	}