From a2efdb21a84947fc8a84ea886d664bf428a0230a Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Tue, 7 Apr 2020 13:33:00 +0000
Subject: [PATCH 1/3] Limit size to 1x1 (total size 3x3).

---
 popup.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/popup.c b/popup.c
index 299d4e76..d23c2001 100644
--- a/popup.c
+++ b/popup.c
@@ -200,9 +200,9 @@ popup_handle_drag(struct client *c, struct popup_data *pd,
 		pd->dy = m->y - pd->py;
 		server_redraw_client(c);
 	} else if (pd->dragging == SIZE) {
-		if (m->x < pd->px + 2)
+		if (m->x < pd->px + 3)
 			return;
-		if (m->y < pd->py + 2)
+		if (m->y < pd->py + 3)
 			return;
 		pd->sx = m->x - pd->px;
 		pd->sy = m->y - pd->py;

From eff881b15aba52841c7b41ff6b5dca3cf6984077 Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Tue, 7 Apr 2020 13:38:30 +0000
Subject: [PATCH 2/3] Do not send mouse events if the program has not requested
 them.

---
 input-keys.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/input-keys.c b/input-keys.c
index 5e54d121..e9c595b4 100644
--- a/input-keys.c
+++ b/input-keys.c
@@ -271,6 +271,8 @@ input_key_get_mouse(struct screen *s, struct mouse_event *m, u_int x, u_int y,
 	/* If this pane is not in button or all mode, discard motion events. */
 	if (MOUSE_DRAG(m->b) && (s->mode & MOTION_MOUSE_MODES) == 0)
 		return (0);
+	if ((s->mode & ALL_MOUSE_MODES) == 0)
+		return (0);
 
 	/*
 	 * If this event is a release event and not in all mode, discard it.

From 1c8f7c1f7afcc7d2a9fcef8d38e6c0e4451da659 Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Tue, 7 Apr 2020 13:55:24 +0000
Subject: [PATCH 3/3] Do not restore history flag if it was never set.

---
 screen.c | 4 +++-
 tmux.h   | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/screen.c b/screen.c
index c3e5da70..898cc860 100644
--- a/screen.c
+++ b/screen.c
@@ -536,6 +536,7 @@ screen_alternate_on(struct screen *s, struct grid_cell *gc, int cursor)
 
 	grid_view_clear(s->grid, 0, 0, sx, sy, 8);
 
+	s->saved_flags = s->grid->flags;
 	s->grid->flags &= ~GRID_HISTORY;
 }
 
@@ -579,7 +580,8 @@ screen_alternate_off(struct screen *s, struct grid_cell *gc, int cursor)
 	 * Turn history back on (so resize can use it) and then resize back to
 	 * the current size.
 	 */
-	s->grid->flags |= GRID_HISTORY;
+	if (s->saved_flags & GRID_HISTORY)
+		s->grid->flags |= GRID_HISTORY;
 	if (sy > s->saved_grid->sy || sx != s->saved_grid->sx)
 		screen_resize(s, sx, sy, 1);
 
diff --git a/tmux.h b/tmux.h
index 3cc46df1..fbf10cf4 100644
--- a/tmux.h
+++ b/tmux.h
@@ -761,6 +761,7 @@ struct screen {
 	u_int			 saved_cy;
 	struct grid		*saved_grid;
 	struct grid_cell	 saved_cell;
+	int			 saved_flags;
 
 	bitstr_t		*tabs;
 	struct screen_sel	*sel;