From 0897413a3e7b7707e6e597077d1621e586180f3b Mon Sep 17 00:00:00 2001
From: Drew DeVault <sir@cmpwn.com>
Date: Mon, 20 May 2019 16:49:39 -0400
Subject: Implement :next-part, :prev-part

---
 commands/msgview/next-part.go | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 commands/msgview/next-part.go

(limited to 'commands')

diff --git a/commands/msgview/next-part.go b/commands/msgview/next-part.go
new file mode 100644
index 0000000..fcf8f19
--- /dev/null
+++ b/commands/msgview/next-part.go
@@ -0,0 +1,43 @@
+package msgview
+
+import (
+	"errors"
+	"fmt"
+	"strconv"
+
+	"git.sr.ht/~sircmpwn/aerc/widgets"
+)
+
+func init() {
+	register("next-part", NextPrevPart)
+	register("prev-part", NextPrevPart)
+}
+
+func nextPrevPartUsage(cmd string) error {
+	return errors.New(fmt.Sprintf("Usage: %s [n]", cmd))
+}
+
+func NextPrevPart(aerc *widgets.Aerc, args []string) error {
+	if len(args) > 2 {
+		return nextPrevPartUsage(args[0])
+	}
+	var (
+		n   int = 1
+		err error
+	)
+	if len(args) > 1 {
+		n, err = strconv.Atoi(args[1])
+		if err != nil {
+			return nextPrevPartUsage(args[0])
+		}
+	}
+	mv, _ := aerc.SelectedTab().(*widgets.MessageViewer)
+	for ; n > 0; n-- {
+		if args[0] == "prev-part" {
+			mv.PreviousPart()
+		} else {
+			mv.NextPart()
+		}
+	}
+	return nil
+}
-- 
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