From 068812380f242d39addd601642c9f49512e10bb7 Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicholas.marriott@gmail.com>
Date: Tue, 6 Oct 2026 12:04:23 +0100
Subject: [PATCH] Test for drag on status line.

---
 regress/new-pane-mouse-status.sh | 118 +++++++++++++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 regress/new-pane-mouse-status.sh

diff --git a/regress/new-pane-mouse-status.sh b/regress/new-pane-mouse-status.sh
new file mode 100644
index 000000000..88fa312f9
--- /dev/null
+++ b/regress/new-pane-mouse-status.sh
@@ -0,0 +1,118 @@
+#!/bin/sh
+
+# A Ctrl-drag starting on the status line must not create a floating pane.
+
+PATH=/bin:/usr/bin
+TERM=screen
+export PATH TERM
+
+[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
+TMUX="$TEST_TMUX -Lmouse-status-inner-$$ -f/dev/null"
+TMUX2="$TEST_TMUX -Lmouse-status-outer-$$ -f/dev/null"
+
+cleanup()
+{
+	$TMUX2 kill-server >/dev/null 2>&1
+	$TMUX kill-server >/dev/null 2>&1
+}
+trap cleanup 0 1 15
+
+fail()
+{
+	echo "$*" >&2
+	exit 1
+}
+
+mouse()
+{
+	seq=$(printf '\033[<%s;%s;%s%s' "$1" "$2" "$3" "$4")
+	$TMUX2 send-keys -t outer:0.0 -l "$seq" || fail "send mouse failed"
+	sleep 0.2
+}
+
+check_drag()
+{
+	start=$1
+	end=$2
+
+	# First move along the status line, then into the pane. The first
+	# movement establishes the drag origin without dispatching new-pane.
+	mouse 16 10 "$start" M
+	mouse 48 11 "$start" M
+	mouse 48 16 "$end" M
+	mouse 48 18 "$end" M
+	mouse 16 18 "$end" m
+
+	panes=$($TMUX list-panes -F '#{pane_id}') || fail "server exited"
+	[ "$panes" = "$BASE" ] || fail "status-line drag created a pane: $panes"
+}
+
+$TMUX new-session -d -s inner -x 60 -y 20 'sleep 100' || exit 1
+$TMUX set -g mouse on || exit 1
+$TMUX set -g default-command 'sleep 100' || exit 1
+BASE=$($TMUX list-panes -F '#{pane_id}') || exit 1
+$TMUX2 new-session -d -s outer -x 60 -y 20 'sleep 100' || exit 1
+$TMUX2 set -g status off || exit 1
+$TMUX2 respawn-pane -k -t outer:0.0 "$TMUX attach -t inner" || exit 1
+sleep 1
+
+check_drag 20 15
+
+$TMUX set -g status 2 || exit 1
+sleep 0.5
+check_drag 20 14
+
+$TMUX set -g status-position top || exit 1
+sleep 0.5
+check_drag 2 8
+
+$TMUX set -g status on || exit 1
+sleep 0.5
+check_drag 1 7
+
+# Window and pane ranges on different status rows still dispatch Status
+# bindings; a control range dispatches its Control binding.
+$TMUX set -g status 3 || exit 1
+$TMUX set -g 'status-format[0]' '#[range=window|0]WINDOW WINDOW WINDOW#[norange]' || exit 1
+$TMUX set -g 'status-format[1]' "#[range=pane|$BASE]PANE PANE PANE PANE#[norange]" || exit 1
+$TMUX set -g 'status-format[2]' '#[range=control|0]CONTROL CONTROL CONTROL#[norange]' || exit 1
+$TMUX bind -n MouseDown1Status set -gF @status-range '#{mouse_status_range}' || exit 1
+$TMUX bind -n MouseDown1Control0 set -gF @status-range '#{mouse_status_range}' || exit 1
+$TMUX bind -n C-MouseDrag1Status set -g @status-drag status || exit 1
+$TMUX bind -n C-MouseDrag1Control0 set -g @status-drag control || exit 1
+sleep 0.5
+
+row=1
+for range in window pane control; do
+	mouse 0 10 "$row" M
+	mouse 0 10 "$row" m
+	got=$($TMUX show -gv @status-range)
+	[ "$got" = "$range" ] || fail "got range '$got', expected '$range'"
+	$TMUX set -g @status-drag '' || exit 1
+	check_drag "$row" 9
+	got=$($TMUX show -gv @status-drag)
+	want=status
+	[ "$range" = control ] && want=control
+	[ "$got" = "$want" ] || fail "got drag '$got', expected '$want'"
+	row=$((row + 1))
+done
+
+# A new drag inside the pane must still use the default Pane binding.
+$TMUX set -g status on || exit 1
+sleep 0.5
+mouse 16 3 4 M
+mouse 48 10 8 M
+mouse 16 10 8 m
+panes=$($TMUX list-panes -F '#{pane_floating_flag}') || fail "server exited"
+[ "$panes" = "$(printf '0\n1')" ] || fail "pane drag did not create a pane"
+
+# Starting on the status line must not dispatch Empty bindings either.
+id=$($TMUX list-panes -F '#{pane_id}' | tail -n 1)
+$TMUX kill-pane -t "$id" || exit 1
+$TMUX break-pane -W -s "$BASE" || exit 1
+$TMUX resize-pane -t "$BASE" -x 10 -y 4 || exit 1
+$TMUX move-pane -t "$BASE" -P top-left || exit 1
+sleep 0.5
+check_drag 1 10
+
+exit 0