Add some new mouse ranges called "control0" to "control9", will be used

for controls on floating panes, from Dane Jensen, with some bits from
Michael Grant.

format-draw.c

@@ -49,6 +49,7 @@ format_is_type(struct format_range *fr, struct style *sy)
 	case STYLE_RANGE_NONE:
 	case STYLE_RANGE_LEFT:
 	case STYLE_RANGE_RIGHT:
+	case STYLE_RANGE_CONTROL:
 		return (1);
 	case STYLE_RANGE_PANE:
 	case STYLE_RANGE_WINDOW:
@@ -1065,6 +1066,10 @@ format_draw(struct screen_write_ctx *octx, const struct grid_cell *base,
 			log_debug("%s: range user|%u at %u-%u", __func__,
 			    sr->argument, sr->start, sr->end);
 			break;
+		case STYLE_RANGE_CONTROL:
+			log_debug("%s: range control|%u at %u-%u", __func__,
+			    sr->argument, sr->start, sr->end);
+			break;
 		}
 		format_free_range(&frs, fr);
 	}

format.c

@@ -1307,6 +1307,8 @@ format_cb_mouse_status_range(struct format_tree *ft)
 		return (xstrdup("session"));
 	case STYLE_RANGE_USER:
 		return (xstrdup(sr->string));
+	case STYLE_RANGE_CONTROL:
+		return (xstrdup("control"));
 	}
 	return (NULL);
 }

screen-redraw.c

@@ -450,6 +450,7 @@ screen_redraw_make_pane_status(struct client *c, struct window_pane *wp,
 	struct grid_cell	 gc;
 	const char		*fmt;
 	struct format_tree	*ft;
+	struct style_line_entry	*sle = &wp->border_status_line;
 	char			*expanded;
 	int			 pane_status = rctx->pane_status, sb_w = 0;
 	int			 pane_scrollbars = rctx->pane_scrollbars;
@@ -494,12 +495,15 @@ screen_redraw_make_pane_status(struct client *c, struct window_pane *wp,
 	gc.attr &= ~GRID_ATTR_CHARSET;
 
 	screen_write_cursormove(&ctx, 0, 0, 0);
-	format_draw(&ctx, &gc, width, expanded, NULL, 0);
-	screen_write_stop(&ctx);
+	style_ranges_free(&sle->ranges);
+	format_draw(&ctx, &gc, width, expanded, &sle->ranges, 0);
 
-	free(expanded);
+	screen_write_stop(&ctx);
 	format_free(ft);
 
+	free(sle->expanded);
+	sle->expanded = expanded;
+
 	if (grid_compare(wp->status_screen.grid, old.grid) == 0) {
 		screen_free(&old);
 		return (0);

server-client.c

@@ -608,7 +608,8 @@ server_client_check_mouse_in_pane(struct window_pane *wp, u_int px, u_int py,
 	struct options		*wo = w->options;
 	struct window_pane	*fwp;
 	int			 pane_status, sb, sb_pos, sb_w, sb_pad;
-	u_int			 line, sl_top, sl_bottom;
+	int			 pane_status_line, sl_top, sl_bottom;
+	int			 bdr_bottom, bdr_top, bdr_right;
 
 	sb = options_get_number(wo, "pane-scrollbars");
 	sb_pos = options_get_number(wo, "pane-scrollbars-position");
@@ -621,35 +622,38 @@ server_client_check_mouse_in_pane(struct window_pane *wp, u_int px, u_int py,
 		sb_w = 0;
 		sb_pad = 0;
 	}
+
 	if (pane_status == PANE_STATUS_TOP)
-		line = wp->yoff - 1;
+		pane_status_line = wp->yoff - 1;
 	else if (pane_status == PANE_STATUS_BOTTOM)
-		line = wp->yoff + wp->sy;
+		pane_status_line = wp->yoff + wp->sy;
+	else
+		pane_status_line = -1; /* not used */
 
 	/* Check if point is within the pane or scrollbar. */
 	if (((pane_status != PANE_STATUS_OFF &&
-	    py != line && py != wp->yoff + wp->sy) ||
+	    (int)py != pane_status_line && py != wp->yoff + wp->sy) ||
 	    (wp->yoff == 0 && py < wp->sy) ||
 	    (py >= wp->yoff && py < wp->yoff + wp->sy)) &&
 	    ((sb_pos == PANE_SCROLLBARS_RIGHT &&
-	    px < wp->xoff + wp->sx + sb_pad + sb_w) ||
+	    (int)px < (int)wp->xoff + (int)wp->sx + sb_pad + sb_w) ||
 	    (sb_pos == PANE_SCROLLBARS_LEFT &&
-	    px < wp->xoff + wp->sx - sb_pad - sb_w))) {
+	    (int)px < (int)wp->xoff + (int)wp->sx - sb_pad - sb_w))) {
 		/* Check if in the scrollbar. */
 		if ((sb_pos == PANE_SCROLLBARS_RIGHT &&
-		    (px >= wp->xoff + wp->sx + sb_pad &&
-		    px < wp->xoff + wp->sx + sb_pad + sb_w)) ||
+		    ((int)px >= (int)wp->xoff + (int)wp->sx + sb_pad &&
+		    (int)px < (int)wp->xoff + (int)wp->sx + sb_pad + sb_w)) ||
 		    (sb_pos == PANE_SCROLLBARS_LEFT &&
-		    (px >= wp->xoff - sb_pad - sb_w &&
-		    px < wp->xoff - sb_pad))) {
+		    ((int)px >= (int)wp->xoff - sb_pad - sb_w &&
+		    (int)px < (int)wp->xoff - sb_pad))) {
 			/* Check where inside the scrollbar. */
 			sl_top = wp->yoff + wp->sb_slider_y;
 			sl_bottom = (wp->yoff + wp->sb_slider_y +
 			    wp->sb_slider_h - 1);
-			if (py < sl_top)
+			if ((int)py < sl_top)
 				return (KEYC_MOUSE_LOCATION_SCROLLBAR_UP);
-			else if (py >= sl_top &&
-				 py <= sl_bottom) {
+			else if ((int)py >= sl_top &&
+				 (int)py <= sl_bottom) {
 				*sl_mpos = (py - wp->sb_slider_y - wp->yoff);
 				return (KEYC_MOUSE_LOCATION_SCROLLBAR_SLIDER);
 			} else /* py > sl_bottom */
@@ -658,19 +662,30 @@ server_client_check_mouse_in_pane(struct window_pane *wp, u_int px, u_int py,
 			/* Must be inside the pane. */
 			return (KEYC_MOUSE_LOCATION_PANE);
 		}
-	} else if (~w->flags & WINDOW_ZOOMED) {
-		/* Try the pane borders if not zoomed. */
+	} else {
+		/* Try the pane borders. */
 		TAILQ_FOREACH(fwp, &w->panes, entry) {
-			if ((((sb_pos == PANE_SCROLLBARS_RIGHT &&
-			    fwp->xoff + fwp->sx + sb_pad + sb_w == px) ||
-			    (sb_pos == PANE_SCROLLBARS_LEFT &&
-			    fwp->xoff + fwp->sx == px)) &&
-			    fwp->yoff <= 1 + py &&
-			    fwp->yoff + fwp->sy >= py) ||
-			    (fwp->yoff + fwp->sy == py &&
-			    fwp->xoff <= 1 + px &&
-			    fwp->xoff + fwp->sx >= px))
-				break;
+			if ((w->flags & WINDOW_ZOOMED) &&
+			    (~fwp->flags & PANE_ZOOMED))
+				continue;
+			bdr_top = fwp->yoff - 1;
+			bdr_bottom = fwp->yoff + (int)fwp->sy;
+			if (sb_pos == PANE_SCROLLBARS_LEFT)
+				bdr_right = fwp->xoff + (int)fwp->sx;
+			else
+				/* PANE_SCROLLBARS_RIGHT or none. */
+				bdr_right = fwp->xoff + (int)fwp->sx +
+				    sb_pad + sb_w;
+			if ((int)py >= (int)fwp->yoff - 1 &&
+			    py <= fwp->yoff + fwp->sy) {
+				if ((int)px == bdr_right)
+					break;
+			}
+			if ((int)px >= (int)fwp->xoff - 1 &&
+			    px <= fwp->xoff + fwp->sx) {
+				if ((int)py == bdr_bottom || (int)py == bdr_top)
+					break;
+			}
 		}
 		if (fwp != NULL)
 			return (KEYC_MOUSE_LOCATION_BORDER);
@@ -687,7 +702,7 @@ server_client_check_mouse(struct client *c, struct key_event *event)
 	struct window			*w = s->curw->window;
 	struct winlink			*fwl;
 	struct window_pane		*wp, *fwp;
-	u_int				 x, y, sx, sy, px, py, sl_mpos = 0;
+	u_int				 x, y, sx, sy, px, py, n, sl_mpos = 0;
 	u_int				 b, bn;
 	int				 ignore = 0;
 	key_code			 key;
@@ -825,8 +840,14 @@ have_event:
 				loc = KEYC_MOUSE_LOCATION_STATUS;
 				break;
 			case STYLE_RANGE_USER:
+				log_debug("mouse range: user");
 				loc = KEYC_MOUSE_LOCATION_STATUS;
 				break;
+			case STYLE_RANGE_CONTROL:
+				n = sr->argument; /* parsing keeps this < 10 */
+				log_debug("mouse range: control %u", n);
+				loc = KEYC_MOUSE_LOCATION_CONTROL0 + n;
+				break;
 			}
 		}
 	}
@@ -865,9 +886,15 @@ have_event:
 			if (loc == KEYC_MOUSE_LOCATION_PANE) {
 				log_debug("mouse %u,%u on pane %%%u", x, y,
 				    wp->id);
-			} else if (loc == KEYC_MOUSE_LOCATION_BORDER)
+			} else if (loc == KEYC_MOUSE_LOCATION_BORDER) {
+				sr = window_pane_border_status_get_range(wp, px,
+					py);
+				if (sr != NULL) {
+					n = sr->argument;
+					loc = KEYC_MOUSE_LOCATION_CONTROL0 + n;
+				}
 				log_debug("mouse on pane %%%u border", wp->id);
-			else if (loc == KEYC_MOUSE_LOCATION_SCROLLBAR_UP ||
+			} else if (loc == KEYC_MOUSE_LOCATION_SCROLLBAR_UP ||
 			    loc == KEYC_MOUSE_LOCATION_SCROLLBAR_SLIDER ||
 			    loc == KEYC_MOUSE_LOCATION_SCROLLBAR_DOWN) {
 				log_debug("mouse on pane %%%u scrollbar",

status.c

@@ -284,27 +284,10 @@ struct style_range *
 status_get_range(struct client *c, u_int x, u_int y)
 {
 	struct status_line	*sl = &c->status;
-	struct style_range	*sr;
 
 	if (y >= nitems(sl->entries))
 		return (NULL);
-	TAILQ_FOREACH(sr, &sl->entries[y].ranges, entry) {
-		if (x >= sr->start && x < sr->end)
-			return (sr);
-	}
-	return (NULL);
-}
-
-/* Free all ranges. */
-static void
-status_free_ranges(struct style_ranges *srs)
-{
-	struct style_range	*sr, *sr1;
-
-	TAILQ_FOREACH_SAFE(sr, srs, entry, sr1) {
-		TAILQ_REMOVE(srs, sr, entry);
-		free(sr);
-	}
+	return (style_ranges_get_range(&sl->entries[y].ranges, x));
 }
 
 /* Save old status line. */
@@ -341,7 +324,7 @@ status_init(struct client *c)
 	u_int			 i;
 
 	for (i = 0; i < nitems(sl->entries); i++)
-		TAILQ_INIT(&sl->entries[i].ranges);
+		style_ranges_init(&sl->entries[i].ranges);
 
 	screen_init(&sl->screen, c->tty.sx, 1, 0);
 	sl->active = &sl->screen;
@@ -355,7 +338,7 @@ status_free(struct client *c)
 	u_int			 i;
 
 	for (i = 0; i < nitems(sl->entries); i++) {
-		status_free_ranges(&sl->entries[i].ranges);
+		style_ranges_free(&sl->entries[i].ranges);
 		free((void *)sl->entries[i].expanded);
 	}
 
@@ -374,7 +357,7 @@ int
 status_redraw(struct client *c)
 {
 	struct status_line		*sl = &c->status;
-	struct status_line_entry	*sle;
+	struct style_line_entry		*sle;
 	struct session			*s = c->session;
 	struct screen_write_ctx		 ctx;
 	struct grid_cell		 gc;
@@ -454,7 +437,7 @@ status_redraw(struct client *c)
 				screen_write_putc(&ctx, &gc, ' ');
 			screen_write_cursormove(&ctx, 0, i, 0);
 
-			status_free_ranges(&sle->ranges);
+			style_ranges_free(&sle->ranges);
 			format_draw(&ctx, &gc, width, expanded, &sle->ranges,
 			    0);
 

style.c

@@ -137,6 +137,15 @@ style_parse(struct style *sy, const struct grid_cell *base, const char *in)
 				sy->range_type = STYLE_RANGE_RIGHT;
 				sy->range_argument = 0;
 				style_set_range_string(sy, "");
+			} else if (strcasecmp(tmp + 6, "control") == 0) {
+				if (found == NULL)
+					goto error;
+				n = strtonum(found, 0, 9, &errstr);
+				if (errstr != NULL)
+					goto error;
+				sy->range_type = STYLE_RANGE_CONTROL;
+				sy->range_argument = n;
+				style_set_range_string(sy, "");
 			} else if (strcasecmp(tmp + 6, "pane") == 0) {
 				if (found == NULL)
 					goto error;
@@ -426,8 +435,10 @@ style_copy(struct style *dst, struct style *src)
 	memcpy(dst, src, sizeof *dst);
 }
 
+/* Set scrollbar style from an option. */
 void
-style_set_scrollbar_style_from_option(struct style *sb_style, struct options *oo)
+style_set_scrollbar_style_from_option(struct style *sb_style,
+    struct options *oo)
 {
 	struct style	*sy;
 
@@ -446,3 +457,37 @@ style_set_scrollbar_style_from_option(struct style *sb_style, struct options *oo
 		utf8_set(&sb_style->gc.data, PANE_SCROLLBARS_CHARACTER);
 	}
 }
+
+/* Initialize style ranges. */
+void
+style_ranges_init(struct style_ranges *srs)
+{
+	TAILQ_INIT(srs);
+}
+
+/* Free style ranges. */
+void
+style_ranges_free(struct style_ranges *srs)
+{
+	struct style_range	*sr, *sr1;
+
+	TAILQ_FOREACH_SAFE(sr, srs, entry, sr1) {
+		TAILQ_REMOVE(srs, sr, entry);
+		free(sr);
+	}
+}
+
+/* Get range for position from style ranges. */
+struct style_range *
+style_ranges_get_range(struct style_ranges *srs, u_int x)
+{
+	struct style_range	*sr;
+
+	if (srs == NULL)
+		return (NULL);
+	TAILQ_FOREACH(sr, srs, entry) {
+		if (x >= sr->start && x < sr->end)
+			return (sr);
+	}
+	return (NULL);
+}

tmux.h

@@ -170,6 +170,16 @@ enum key_code_mouse_location {
 	KEYC_MOUSE_LOCATION_SCROLLBAR_UP,
 	KEYC_MOUSE_LOCATION_SCROLLBAR_SLIDER,
 	KEYC_MOUSE_LOCATION_SCROLLBAR_DOWN,
+	KEYC_MOUSE_LOCATION_CONTROL0, /* keep order */
+	KEYC_MOUSE_LOCATION_CONTROL1,
+	KEYC_MOUSE_LOCATION_CONTROL2,
+	KEYC_MOUSE_LOCATION_CONTROL3,
+	KEYC_MOUSE_LOCATION_CONTROL4,
+	KEYC_MOUSE_LOCATION_CONTROL5,
+	KEYC_MOUSE_LOCATION_CONTROL6,
+	KEYC_MOUSE_LOCATION_CONTROL7,
+	KEYC_MOUSE_LOCATION_CONTROL8,
+	KEYC_MOUSE_LOCATION_CONTROL9,
 	KEYC_MOUSE_LOCATION_NOWHERE /* end */
 };
 
@@ -215,7 +225,17 @@ enum key_code_mouse_location {
 	KEYC_MOUSE_KEY(KEYC_ ## t, KEYC_TYPE_ ## t, BORDER),           \
 	KEYC_MOUSE_KEY(KEYC_ ## t, KEYC_TYPE_ ## t, SCROLLBAR_UP),     \
 	KEYC_MOUSE_KEY(KEYC_ ## t, KEYC_TYPE_ ## t, SCROLLBAR_SLIDER), \
-	KEYC_MOUSE_KEY(KEYC_ ## t, KEYC_TYPE_ ## t, SCROLLBAR_DOWN)
+	KEYC_MOUSE_KEY(KEYC_ ## t, KEYC_TYPE_ ## t, SCROLLBAR_DOWN),   \
+	KEYC_MOUSE_KEY(KEYC_ ## t, KEYC_TYPE_ ## t, CONTROL0),         \
+	KEYC_MOUSE_KEY(KEYC_ ## t, KEYC_TYPE_ ## t, CONTROL1),         \
+	KEYC_MOUSE_KEY(KEYC_ ## t, KEYC_TYPE_ ## t, CONTROL2),         \
+	KEYC_MOUSE_KEY(KEYC_ ## t, KEYC_TYPE_ ## t, CONTROL3),         \
+	KEYC_MOUSE_KEY(KEYC_ ## t, KEYC_TYPE_ ## t, CONTROL4),         \
+	KEYC_MOUSE_KEY(KEYC_ ## t, KEYC_TYPE_ ## t, CONTROL5),         \
+	KEYC_MOUSE_KEY(KEYC_ ## t, KEYC_TYPE_ ## t, CONTROL6),         \
+	KEYC_MOUSE_KEY(KEYC_ ## t, KEYC_TYPE_ ## t, CONTROL7),         \
+	KEYC_MOUSE_KEY(KEYC_ ## t, KEYC_TYPE_ ## t, CONTROL8),         \
+	KEYC_MOUSE_KEY(KEYC_ ## t, KEYC_TYPE_ ## t, CONTROL9)
 #define KEYC_MOUSE_KEY(p, t, l)                                                \
 	p ## _ ## l = KEYC_MAKE_MOUSE_KEY(t, 0, KEYC_MOUSE_LOCATION_ ## l),    \
 	p ## 1_ ## l = KEYC_MAKE_MOUSE_KEY(t, 1, KEYC_MOUSE_LOCATION_ ## l),   \
@@ -240,7 +260,17 @@ enum key_code_mouse_location {
 	{ #s "ScrollbarUp", KEYC_ ## name ## _SCROLLBAR_UP },         \
 	{ #s "ScrollbarSlider", KEYC_ ## name ## _SCROLLBAR_SLIDER }, \
 	{ #s "ScrollbarDown", KEYC_ ## name ## _SCROLLBAR_DOWN },     \
-	{ #s "Border", KEYC_ ## name ## _BORDER }
+	{ #s "Border", KEYC_ ## name ## _BORDER },		      \
+	{ #s "Control0", KEYC_ ## name ## _CONTROL0 },		      \
+	{ #s "Control1", KEYC_ ## name ## _CONTROL1 },		      \
+	{ #s "Control2", KEYC_ ## name ## _CONTROL2 },		      \
+	{ #s "Control3", KEYC_ ## name ## _CONTROL3 },		      \
+	{ #s "Control4", KEYC_ ## name ## _CONTROL4 },		      \
+	{ #s "Control5", KEYC_ ## name ## _CONTROL5 },		      \
+	{ #s "Control6", KEYC_ ## name ## _CONTROL6 },		      \
+	{ #s "Control7", KEYC_ ## name ## _CONTROL7 },		      \
+	{ #s "Control8", KEYC_ ## name ## _CONTROL8 },		      \
+	{ #s "Control9", KEYC_ ## name ## _CONTROL9 }
 
 /*
  * A single key. This can be ASCII or Unicode or one of the keys between
@@ -866,7 +896,8 @@ enum style_range_type {
 	STYLE_RANGE_PANE,
 	STYLE_RANGE_WINDOW,
 	STYLE_RANGE_SESSION,
-	STYLE_RANGE_USER
+	STYLE_RANGE_USER,
+	STYLE_RANGE_CONTROL
 };
 struct style_range {
 	enum style_range_type	 type;
@@ -880,6 +911,12 @@ struct style_range {
 };
 TAILQ_HEAD(style_ranges, style_range);
 
+/* Ranges connected with a status line. */
+struct style_line_entry {
+	char			*expanded;
+	struct style_ranges	 ranges;
+};
+
 /* Default style width and pad. */
 #define STYLE_WIDTH_DEFAULT -1
 #define STYLE_PAD_DEFAULT -1
@@ -1180,7 +1217,7 @@ struct window_pane {
 #define PANE_DROP 0x2
 #define PANE_FOCUSED 0x4
 #define PANE_VISITED 0x8
-/* 0x10 unused */
+#define PANE_ZOOMED 0x10
 /* 0x20 unused */
 #define PANE_INPUTOFF 0x40
 #define PANE_CHANGED 0x80
@@ -1222,6 +1259,7 @@ struct window_pane {
 	struct grid_cell cached_active_gc;
 	struct colour_palette palette;
 	enum client_theme last_theme;
+	struct style_line_entry border_status_line;
 
 	int		 pipe_fd;
 	pid_t		 pipe_pid;
@@ -1847,10 +1885,6 @@ struct cmd_entry {
 
 /* Status line. */
 #define STATUS_LINES_LIMIT 5
-struct status_line_entry {
-	char			*expanded;
-	struct style_ranges	 ranges;
-};
 struct status_line {
 	struct event		 timer;
 
@@ -1859,7 +1893,7 @@ struct status_line {
 	int			 references;
 
 	struct grid_cell	 style;
-	struct status_line_entry entries[STATUS_LINES_LIMIT];
+	struct style_line_entry entries[STATUS_LINES_LIMIT];
 };
 
 /* Prompt type. */
@@ -3368,6 +3402,8 @@ int		 window_pane_get_bg_control_client(struct window_pane *);
 int		 window_get_bg_client(struct window_pane *);
 enum client_theme window_pane_get_theme(struct window_pane *);
 void		 window_pane_send_theme_update(struct window_pane *);
+struct style_range *window_pane_border_status_get_range(struct window_pane *,
+			u_int, u_int);
 
 /* layout.c */
 u_int		 layout_count_cells(struct layout_cell *);
@@ -3684,6 +3720,9 @@ void		 style_set(struct style *, const struct grid_cell *);
 void		 style_copy(struct style *, struct style *);
 void		 style_set_scrollbar_style_from_option(struct style *,
 		     struct options *);
+void		 style_ranges_init(struct style_ranges *);
+void		 style_ranges_free(struct style_ranges *);
+struct style_range *style_ranges_get_range(struct style_ranges *, u_int);
 
 /* spawn.c */
 struct winlink	*spawn_window(struct spawn_context *, char **);

window.c

@@ -589,16 +589,24 @@ struct window_pane *
 window_get_active_at(struct window *w, u_int x, u_int y)
 {
 	struct window_pane	*wp;
-	u_int			 xoff, yoff, sx, sy;
+	int			 pane_status, xoff, yoff;
+	u_int			 sx, sy;
+
+	pane_status = options_get_number(w->options, "pane-border-status");
 
 	TAILQ_FOREACH(wp, &w->panes, entry) {
 		if (!window_pane_visible(wp))
 			continue;
 		window_pane_full_size_offset(wp, &xoff, &yoff, &sx, &sy);
-		if (x < xoff || x > xoff + sx)
-			continue;
-		if (y < yoff || y > yoff + sy)
+		if ((int)x < xoff || x > xoff + sx)
 			continue;
+		if (pane_status == PANE_STATUS_TOP) {
+			if ((int)y <= yoff - 2 || y > yoff + sy - 1)
+				continue;
+		} else {
+			if ((int)y < yoff || y > yoff + sy)
+				continue;
+		}
 		return (wp);
 	}
 	return (NULL);
@@ -659,6 +667,7 @@ window_zoom(struct window_pane *wp)
 
 	if (w->active != wp)
 		window_set_active_pane(w, wp, 1);
+	wp->flags |= PANE_ZOOMED;
 
 	TAILQ_FOREACH(wp1, &w->panes, entry) {
 		wp1->saved_layout_cell = wp1->layout_cell;
@@ -689,6 +698,7 @@ window_unzoom(struct window *w, int notify)
 	TAILQ_FOREACH(wp, &w->panes, entry) {
 		wp->layout_cell = wp->saved_layout_cell;
 		wp->saved_layout_cell = NULL;
+		wp->flags ^= PANE_ZOOMED;
 	}
 	layout_fix_panes(w, NULL);
 
@@ -959,6 +969,7 @@ window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
 	window_pane_default_cursor(wp);
 
 	screen_init(&wp->status_screen, 1, 1, 0);
+	style_ranges_init(&wp->border_status_line.ranges);
 
 	if (gethostname(host, sizeof host) == 0)
 		screen_set_title(&wp->base, host);
@@ -1007,6 +1018,7 @@ window_pane_destroy(struct window_pane *wp)
 	free(wp->shell);
 	cmd_free_argv(wp->argc, wp->argv);
 	colour_palette_free(&wp->palette);
+	style_ranges_free(&wp->border_status_line.ranges);
 	free(wp);
 }
 
@@ -1958,3 +1970,31 @@ window_pane_send_theme_update(struct window_pane *wp)
 		break;
 	}
 }
+
+struct style_range *
+window_pane_border_status_get_range(struct window_pane *wp, u_int x, u_int y)
+{
+	struct style_ranges	*srs;
+	struct window		*w = wp->window;
+	struct options		*wo = w->options;
+	u_int			 line;
+	int			 pane_status;
+
+	if (wp == NULL)
+		return (NULL);
+	srs = &wp->border_status_line.ranges;
+
+	pane_status = options_get_number(wo, "pane-border-status");
+	if (pane_status == PANE_STATUS_TOP)
+		line = wp->yoff - 1;
+	else if (pane_status == PANE_STATUS_BOTTOM)
+		line = wp->yoff + wp->sy;
+	if (pane_status == PANE_STATUS_OFF || line != y)
+		return (NULL);
+
+	/*
+	 * The border formats start 2 off but that isn't reflected in
+	 * the stored bounds of the range.
+	 */
+	return (style_ranges_get_range(srs, x - wp->xoff - 2));
+}