From 24daef89e0fc6056c3ff7b94880ed12b4ec3eaa6 Mon Sep 17 00:00:00 2001
From: Drew DeVault <sir@cmpwn.com>
Date: Thu, 14 Mar 2019 23:41:25 -0400
Subject: Implement :{next,prev}-message

---
 widgets/msglist.go | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

(limited to 'widgets/msglist.go')

diff --git a/widgets/msglist.go b/widgets/msglist.go
index e004e0e..36d7f7a 100644
--- a/widgets/msglist.go
+++ b/widgets/msglist.go
@@ -180,3 +180,23 @@ func (ml *MessageList) SetStore(store *MessageStore) {
 	}
 	ml.Invalidate()
 }
+
+func (ml *MessageList) nextPrev(delta int) {
+	ml.selected += delta
+	if ml.selected < 0 {
+		ml.selected = len(ml.store.Uids) - 1
+	}
+	if ml.selected >= len(ml.store.Uids) {
+		ml.selected = 0
+	}
+	// TODO: scrolling
+	ml.Invalidate()
+}
+
+func (ml *MessageList) Next() {
+	ml.nextPrev(1)
+}
+
+func (ml *MessageList) Prev() {
+	ml.nextPrev(-1)
+}
-- 
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