From 58b47bf01b4136a7f90cb6852b0ecb1b414e4494 Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Fri, 14 Feb 2020 13:57:58 +0000
Subject: [PATCH] Fix top/bottom pane calculation with pane border status
 enabled, reported by Stanislav Spassov.

---
 format.c | 42 ++++++++++++++++++++++++++++++++++++++++--
 window.c | 21 ++++++++++++++-------
 2 files changed, 54 insertions(+), 9 deletions(-)

diff --git a/format.c b/format.c
index ff8e3c62..4b859501 100644
--- a/format.c
+++ b/format.c
@@ -880,6 +880,44 @@ format_cb_pane_in_mode(struct format_tree *ft, struct format_entry *fe)
 	xasprintf(&fe->value, "%u", n);
 }
 
+/* Callback for pane_at_top. */
+static void
+format_cb_pane_at_top(struct format_tree *ft, struct format_entry *fe)
+{
+	struct window_pane	*wp = ft->wp;
+	struct window		*w = wp->window;
+	int			 status, flag;
+
+	if (wp == NULL)
+		return;
+
+	status = options_get_number(w->options, "pane-border-status");
+	if (status == PANE_STATUS_TOP)
+		flag = (wp->yoff == 1);
+	else
+		flag = (wp->yoff == 0);
+	xasprintf(&fe->value, "%d", flag);
+}
+
+/* Callback for pane_at_bottom. */
+static void
+format_cb_pane_at_bottom(struct format_tree *ft, struct format_entry *fe)
+{
+	struct window_pane	*wp = ft->wp;
+	struct window		*w = wp->window;
+	int			 status, flag;
+
+	if (wp == NULL)
+		return;
+
+	status = options_get_number(w->options, "pane-border-status");
+	if (status == PANE_STATUS_BOTTOM)
+		flag = (wp->yoff + wp->sy == w->sy - 1);
+	else
+		flag = (wp->yoff + wp->sy == w->sy);
+	xasprintf(&fe->value, "%d", flag);
+}
+
 /* Callback for cursor_character. */
 static void
 format_cb_cursor_character(struct format_tree *ft, struct format_entry *fe)
@@ -2531,9 +2569,9 @@ format_defaults_pane(struct format_tree *ft, struct window_pane *wp)
 	format_add(ft, "pane_right", "%u", wp->xoff + wp->sx - 1);
 	format_add(ft, "pane_bottom", "%u", wp->yoff + wp->sy - 1);
 	format_add(ft, "pane_at_left", "%d", wp->xoff == 0);
-	format_add(ft, "pane_at_top", "%d", wp->yoff == 0);
+	format_add_cb(ft, "pane_at_top", format_cb_pane_at_top);
 	format_add(ft, "pane_at_right", "%d", wp->xoff + wp->sx == w->sx);
-	format_add(ft, "pane_at_bottom", "%d", wp->yoff + wp->sy == w->sy);
+	format_add_cb(ft, "pane_at_bottom", format_cb_pane_at_bottom);
 
 	wme = TAILQ_FIRST(&wp->modes);
 	if (wme != NULL) {
diff --git a/window.c b/window.c
index bd25b5d1..a4b452eb 100644
--- a/window.c
+++ b/window.c
@@ -541,31 +541,38 @@ window_get_active_at(struct window *w, u_int x, u_int y)
 struct window_pane *
 window_find_string(struct window *w, const char *s)
 {
-	u_int	x, y;
+	u_int	x, y, top = 0, bottom = w->sy - 1;
+	int	status;
 
 	x = w->sx / 2;
 	y = w->sy / 2;
 
+	status = options_get_number(w->options, "pane-border-status");
+	if (status == PANE_STATUS_TOP)
+		top++;
+	else if (status == PANE_STATUS_BOTTOM)
+		bottom--;
+
 	if (strcasecmp(s, "top") == 0)
-		y = 0;
+		y = top;
 	else if (strcasecmp(s, "bottom") == 0)
-		y = w->sy - 1;
+		y = bottom;
 	else if (strcasecmp(s, "left") == 0)
 		x = 0;
 	else if (strcasecmp(s, "right") == 0)
 		x = w->sx - 1;
 	else if (strcasecmp(s, "top-left") == 0) {
 		x = 0;
-		y = 0;
+		y = top;
 	} else if (strcasecmp(s, "top-right") == 0) {
 		x = w->sx - 1;
-		y = 0;
+		y = top;
 	} else if (strcasecmp(s, "bottom-left") == 0) {
 		x = 0;
-		y = w->sy - 1;
+		y = bottom;
 	} else if (strcasecmp(s, "bottom-right") == 0) {
 		x = w->sx - 1;
-		y = w->sy - 1;
+		y = bottom;
 	} else
 		return (NULL);