From 9d28f33eb960f67234cd54ab90b9a7f1e85da6b0 Mon Sep 17 00:00:00 2001
From: DreamMaoMao <2523610504@qq.com>
Date: Tue, 21 Apr 2026 09:13:27 +0800
Subject: [PATCH] opt: dont apply viewback dispatch when no tag change

---
 src/mango.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/mango.c b/src/mango.c
index 378387a1..e384857d 100644
--- a/src/mango.c
+++ b/src/mango.c
@@ -6339,10 +6339,14 @@ void view_in_mon(const Arg *arg, bool want_animation, Monitor *m,
 	}
 
 	if (arg->ui == UINT32_MAX) {
-		m->pertag->prevtag = get_tags_first_tag_num(m->tagset[m->seltags]);
-		m->seltags ^= 1; /* toggle sel tagset */
-		m->pertag->curtag = get_tags_first_tag_num(m->tagset[m->seltags]);
-		goto toggleseltags;
+		if (m->tagset[0] != m->tagset[1]) {
+			m->pertag->prevtag = get_tags_first_tag_num(m->tagset[m->seltags]);
+			m->seltags ^= 1; /* toggle sel tagset */
+			m->pertag->curtag = get_tags_first_tag_num(m->tagset[m->seltags]);
+			goto toggleseltags;
+		} else {
+			return;
+		}
 	}
 
 	if ((m->tagset[m->seltags] & arg->ui & TAGMASK) != 0) {