From 84302de27eb132d5c866a96947ac56ea7d65bf73 Mon Sep 17 00:00:00 2001
From: javex <641439+Javex@users.noreply.github.com>
Date: Thu, 15 Aug 2024 16:33:03 +1000
Subject: Add support for tmux (#3)

---
 main.go | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/main.go b/main.go
index 681b7b7..46d4fdf 100644
--- a/main.go
+++ b/main.go
@@ -23,6 +23,7 @@ var (
 	oscOpen     string = "\x1b]52;c;"
 	oscClose    string = "\a"
 	isScreen    bool
+	isTmux      bool
 	verboseFlag bool
 	logfileFlag string
 	deviceFlag  string
@@ -90,7 +91,9 @@ func initLogging() (logfile *os.File) {
 }
 
 func identifyTerm() {
-	if ti, err := tcell.LookupTerminfo(os.Getenv("TERM")); err != nil {
+	if os.Getenv("TMUX") != "" {
+		isTmux = true
+	} else if ti, err := tcell.LookupTerminfo(os.Getenv("TERM")); err != nil {
 		slog.Error(fmt.Sprintf("Failed to lookup terminfo: %v", err))
 	} else {
 		slog.Debug(fmt.Sprintf("term name: %s, aliases: %q", ti.Name, ti.Aliases))
@@ -103,6 +106,10 @@ func identifyTerm() {
 		slog.Debug("Setting screen dcs passthrough")
 		oscOpen = "\x1bP" + oscOpen
 		oscClose = oscClose + "\x1b\\"
+	} else if isTmux {
+		slog.Debug("Setting tmux dcs passthrough")
+		oscOpen = "\x1bPtmux;\x1b" + oscOpen
+		oscClose = oscClose + "\x1b\\"
 	}
 }
 
-- 
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