Merge branch 'obsd-master' into master

cmd-join-pane.c

@@ -146,7 +146,7 @@ cmd_join_pane_exec(struct cmd *self, struct cmdq_item *item)
 		TAILQ_INSERT_BEFORE(dst_wp, src_wp, entry);
 	else
 		TAILQ_INSERT_AFTER(&dst_w->panes, dst_wp, src_wp, entry);
-	layout_assign_pane(lc, src_wp);
+	layout_assign_pane(lc, src_wp, 0);
 
 	recalculate_sizes();
 

cmd-rotate-window.c

@@ -52,7 +52,7 @@ cmd_rotate_window_exec(struct cmd *self, struct cmdq_item *item)
 	struct layout_cell	*lc;
 	u_int			 sx, sy, xoff, yoff;
 
-	window_push_zoom(w, args_has(args, 'Z'));
+	window_push_zoom(w, 0, args_has(args, 'Z'));
 
 	if (args_has(args, 'D')) {
 		wp = TAILQ_LAST(&w->panes, window_panes);

cmd-select-pane.c

@@ -117,7 +117,7 @@ cmd_select_pane_exec(struct cmd *self, struct cmdq_item *item)
 			server_redraw_window_borders(lastwp->window);
 			server_status_window(lastwp->window);
 		} else {
-			if (window_push_zoom(w, args_has(args, 'Z')))
+			if (window_push_zoom(w, 0, args_has(args, 'Z')))
 				server_redraw_window(w);
 			window_redraw_active_switch(w, lastwp);
 			if (window_set_active_pane(w, lastwp, 1)) {
@@ -171,19 +171,19 @@ cmd_select_pane_exec(struct cmd *self, struct cmdq_item *item)
 	}
 
 	if (args_has(args, 'L')) {
-		window_push_zoom(w, 1);
+		window_push_zoom(w, 0, 1);
 		wp = window_pane_find_left(wp);
 		window_pop_zoom(w);
 	} else if (args_has(args, 'R')) {
-		window_push_zoom(w, 1);
+		window_push_zoom(w, 0, 1);
 		wp = window_pane_find_right(wp);
 		window_pop_zoom(w);
 	} else if (args_has(args, 'U')) {
-		window_push_zoom(w, 1);
+		window_push_zoom(w, 0, 1);
 		wp = window_pane_find_up(wp);
 		window_pop_zoom(w);
 	} else if (args_has(args, 'D')) {
-		window_push_zoom(w, 1);
+		window_push_zoom(w, 0, 1);
 		wp = window_pane_find_down(wp);
 		window_pop_zoom(w);
 	}
@@ -220,7 +220,7 @@ cmd_select_pane_exec(struct cmd *self, struct cmdq_item *item)
 		activewp = w->active;
 	if (wp == activewp)
 		return (CMD_RETURN_NORMAL);
-	if (window_push_zoom(w, args_has(args, 'Z')))
+	if (window_push_zoom(w, 0, args_has(args, 'Z')))
 		server_redraw_window(w);
 	window_redraw_active_switch(w, wp);
 	if (c != NULL && c->session != NULL && (c->flags & CLIENT_ACTIVEPANE))

cmd-split-window.c

@@ -39,8 +39,8 @@ const struct cmd_entry cmd_split_window_entry = {
 	.name = "split-window",
 	.alias = "splitw",
 
-	.args = { "bc:de:fF:hIl:p:Pt:v", 0, -1 },
+	.args = { "bc:de:fF:hIl:p:Pt:vZ", 0, -1 },
-	.usage = "[-bdefhIPv] [-c start-directory] [-e environment] "
+	.usage = "[-bdefhIPvZ] [-c start-directory] [-e environment] "
 		 "[-F format] [-l size] " CMD_TARGET_PANE_USAGE " [command]",
 
 	.target = { 't', CMD_FIND_PANE, 0 },
@@ -110,7 +110,7 @@ cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
 	} else
 		size = -1;
 
-	server_unzoom_window(wp->window);
+	window_push_zoom(wp->window, 1, args_has(args, 'Z'));
 	input = (args_has(args, 'I') && args->argc == 0);
 
 	flags = 0;
@@ -152,6 +152,8 @@ cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
 	sc.flags = flags;
 	if (args_has(args, 'd'))
 		sc.flags |= SPAWN_DETACHED;
+	if (args_has(args, 'Z'))
+		sc.flags |= SPAWN_ZOOM;
 
 	if ((new_wp = spawn_pane(&sc, &cause)) == NULL) {
 		cmdq_error(item, "create pane failed: %s", cause);
@@ -168,6 +170,7 @@ cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
 	}
 	if (!args_has(args, 'd'))
 		cmd_find_from_winlink_pane(current, wl, new_wp, 0);
+	window_pop_zoom(wp->window);
 	server_redraw_window(wp->window);
 	server_status_session(s);
 

cmd-swap-pane.c

@@ -58,7 +58,7 @@ cmd_swap_pane_exec(struct cmd *self, struct cmdq_item *item)
 	src_w = source->wl->window;
 	src_wp = source->wp;
 
-	if (window_push_zoom(dst_w, args_has(args, 'Z')))
+	if (window_push_zoom(dst_w, 0, args_has(args, 'Z')))
 		server_redraw_window(dst_w);
 
 	if (args_has(args, 'D')) {
@@ -73,7 +73,7 @@ cmd_swap_pane_exec(struct cmd *self, struct cmdq_item *item)
 			src_wp = TAILQ_LAST(&dst_w->panes, window_panes);
 	}
 
-	if (src_w != dst_w && window_push_zoom(src_w, args_has(args, 'Z')))
+	if (src_w != dst_w && window_push_zoom(src_w, 0, args_has(args, 'Z')))
 		server_redraw_window(src_w);
 
 	if (src_wp == dst_wp)

cmd-switch-client.c

@@ -118,7 +118,7 @@ cmd_switch_client_exec(struct cmd *self, struct cmdq_item *item)
 			return (CMD_RETURN_NORMAL);
 		if (wl != NULL && wp != NULL && wp != wl->window->active) {
 			w = wl->window;
-			if (window_push_zoom(w, args_has(args, 'Z')))
+			if (window_push_zoom(w, 0, args_has(args, 'Z')))
 				server_redraw_window(w);
 			window_redraw_active_switch(w, wp);
 			window_set_active_pane(w, wp, 1);

format-draw.c

@@ -157,13 +157,14 @@ format_draw_put_list(struct screen_write_ctx *octx,
 static void
 format_draw_none(struct screen_write_ctx *octx, u_int available, u_int ocx,
     u_int ocy, struct screen *left, struct screen *centre, struct screen *right,
-    struct format_ranges *frs)
+    struct screen *abs_centre, struct format_ranges *frs)
 {
-	u_int	width_left, width_centre, width_right;
+	u_int	width_left, width_centre, width_right, width_abs_centre;
 
 	width_left = left->cx;
 	width_centre = centre->cx;
 	width_right = right->cx;
+	width_abs_centre = abs_centre->cx;
 
 	/*
 	 * Try to keep as much of the left and right as possible at the expense
@@ -199,23 +200,34 @@ format_draw_none(struct screen_write_ctx *octx, u_int available, u_int ocx,
 	    - width_centre / 2,
 	    centre->cx / 2 - width_centre / 2,
 	    width_centre);
+
+	/*
+	 * Write abs_centre in the perfect centre of all horizontal space.
+	 */
+	if (width_abs_centre > available)
+		width_abs_centre = available;
+	format_draw_put(octx, ocx, ocy, abs_centre, frs,
+	    (available - width_abs_centre) / 2,
+	    0,
+	    width_abs_centre);
 }
 
 /* Draw format with list on the left. */
 static void
 format_draw_left(struct screen_write_ctx *octx, u_int available, u_int ocx,
     u_int ocy, struct screen *left, struct screen *centre, struct screen *right,
-    struct screen *list, struct screen *list_left, struct screen *list_right,
+    struct screen *abs_centre, struct screen *list, struct screen *list_left,
-    struct screen *after, int focus_start, int focus_end,
+    struct screen *list_right, struct screen *after, int focus_start,
-    struct format_ranges *frs)
+    int focus_end, struct format_ranges *frs)
 {
 	u_int			width_left, width_centre, width_right;
-	u_int			width_list, width_after;
+	u_int			width_list, width_after, width_abs_centre;
 	struct screen_write_ctx	ctx;
 
 	width_left = left->cx;
 	width_centre = centre->cx;
 	width_right = right->cx;
+	width_abs_centre = abs_centre->cx;
 	width_list = list->cx;
 	width_after = after->cx;
 
@@ -247,7 +259,7 @@ format_draw_left(struct screen_write_ctx *octx, u_int available, u_int ocx,
 		screen_write_stop(&ctx);
 
 		format_draw_none(octx, available, ocx, ocy, left, centre,
-		    right, frs);
+		    right, abs_centre, frs);
 		return;
 	}
 
@@ -291,23 +303,34 @@ format_draw_left(struct screen_write_ctx *octx, u_int available, u_int ocx,
 		focus_start = focus_end = 0;
 	format_draw_put_list(octx, ocx, ocy, width_left, width_list, list,
 	    list_left, list_right, focus_start, focus_end, frs);
+
+	/*
+	 * Write abs_centre in the perfect centre of all horizontal space.
+	 */
+	if (width_abs_centre > available)
+		width_abs_centre = available;
+	format_draw_put(octx, ocx, ocy, abs_centre, frs,
+	    (available - width_abs_centre) / 2,
+	    0,
+	    width_abs_centre);
 }
 
 /* Draw format with list in the centre. */
 static void
 format_draw_centre(struct screen_write_ctx *octx, u_int available, u_int ocx,
     u_int ocy, struct screen *left, struct screen *centre, struct screen *right,
-    struct screen *list, struct screen *list_left, struct screen *list_right,
+    struct screen *abs_centre, struct screen *list, struct screen *list_left,
-    struct screen *after, int focus_start, int focus_end,
+    struct screen *list_right, struct screen *after, int focus_start,
-    struct format_ranges *frs)
+    int focus_end, struct format_ranges *frs)
 {
-	u_int			width_left, width_centre, width_right;
+	u_int			width_left, width_centre, width_right, middle;
-	u_int			width_list, width_after, middle;
+	u_int			width_list, width_after, width_abs_centre;
 	struct screen_write_ctx	ctx;
 
 	width_left = left->cx;
 	width_centre = centre->cx;
 	width_right = right->cx;
+	width_abs_centre = abs_centre->cx;
 	width_list = list->cx;
 	width_after = after->cx;
 
@@ -339,7 +362,7 @@ format_draw_centre(struct screen_write_ctx *octx, u_int available, u_int ocx,
 		screen_write_stop(&ctx);
 
 		format_draw_none(octx, available, ocx, ocy, left, centre,
-		    right, frs);
+		    right, abs_centre, frs);
 		return;
 	}
 
@@ -388,23 +411,34 @@ format_draw_centre(struct screen_write_ctx *octx, u_int available, u_int ocx,
 	format_draw_put_list(octx, ocx, ocy, middle - width_list / 2,
 	    width_list, list, list_left, list_right, focus_start, focus_end,
 	    frs);
+
+	/*
+	 * Write abs_centre in the perfect centre of all horizontal space.
+	 */
+	if (width_abs_centre > available)
+		width_abs_centre = available;
+	format_draw_put(octx, ocx, ocy, abs_centre, frs,
+	    (available - width_abs_centre) / 2,
+	    0,
+	    width_abs_centre);
 }
 
 /* Draw format with list on the right. */
 static void
 format_draw_right(struct screen_write_ctx *octx, u_int available, u_int ocx,
     u_int ocy, struct screen *left, struct screen *centre, struct screen *right,
-    struct screen *list, struct screen *list_left, struct screen *list_right,
+    struct screen *abs_centre,     struct screen *list,
-    struct screen *after, int focus_start, int focus_end,
+    struct screen *list_left, struct screen *list_right, struct screen *after,
-    struct format_ranges *frs)
+    int focus_start, int focus_end, struct format_ranges *frs)
 {
 	u_int			width_left, width_centre, width_right;
-	u_int			width_list, width_after;
+	u_int			width_list, width_after, width_abs_centre;
 	struct screen_write_ctx	ctx;
 
 	width_left = left->cx;
 	width_centre = centre->cx;
 	width_right = right->cx;
+	width_abs_centre = abs_centre->cx;
 	width_list = list->cx;
 	width_after = after->cx;
 
@@ -436,7 +470,7 @@ format_draw_right(struct screen_write_ctx *octx, u_int available, u_int ocx,
 		screen_write_stop(&ctx);
 
 		format_draw_none(octx, available, ocx, ocy, left, centre,
-		    right, frs);
+		    right, abs_centre, frs);
 		return;
 	}
 
@@ -484,6 +518,118 @@ format_draw_right(struct screen_write_ctx *octx, u_int available, u_int ocx,
 	format_draw_put_list(octx, ocx, ocy, available - width_list -
 	    width_after, width_list, list, list_left, list_right, focus_start,
 	    focus_end, frs);
+
+	/*
+	 * Write abs_centre in the perfect centre of all horizontal space.
+	 */
+	if (width_abs_centre > available)
+		width_abs_centre = available;
+	format_draw_put(octx, ocx, ocy, abs_centre, frs,
+	    (available - width_abs_centre) / 2,
+	    0,
+	    width_abs_centre);
+}
+
+static void
+format_draw_absolute_centre(struct screen_write_ctx *octx, u_int available,
+    u_int ocx, u_int ocy, struct screen *left, struct screen *centre,
+    struct screen *right, struct screen *abs_centre, struct screen *list,
+    struct screen *list_left, struct screen *list_right, struct screen *after,
+    int focus_start, int focus_end, struct format_ranges *frs)
+{
+	u_int	width_left, width_centre, width_right, width_abs_centre;
+	u_int	width_list, width_after, middle, abs_centre_offset;
+
+	width_left = left->cx;
+	width_centre = centre->cx;
+	width_right = right->cx;
+	width_abs_centre = abs_centre->cx;
+	width_list = list->cx;
+	width_after = after->cx;
+
+	/*
+	 * Trim first centre, then the right, then the left.
+	 */
+	while (width_left +
+	    width_centre +
+	    width_right > available) {
+		if (width_centre > 0)
+			width_centre--;
+		else if (width_right > 0)
+			width_right--;
+		else
+			width_left--;
+	}
+
+	/*
+	 * We trim list after and abs_centre independently, as we are drawing
+	 * them over the rest. Trim first the list, then after the list, then
+	 * abs_centre.
+	 */
+	while (width_list + width_after + width_abs_centre > available) {
+		if (width_list > 0)
+			width_list--;
+		else if (width_after > 0)
+			width_after--;
+		else
+			width_abs_centre--;
+	}
+
+	/* Write left at 0. */
+	format_draw_put(octx, ocx, ocy, left, frs, 0, 0, width_left);
+
+	/* Write right at available - width_right. */
+	format_draw_put(octx, ocx, ocy, right, frs,
+	    available - width_right,
+	    right->cx - width_right,
+	    width_right);
+
+	/*
+	 * Keep writing centre at the relative centre. Only the list is written
+	 * in the absolute centre of the horizontal space.
+	 */
+	middle = (width_left + ((available - width_right) - width_left) / 2);
+
+	/*
+	 * Write centre at
+	 *     middle - width_centre.
+	 */
+	format_draw_put(octx, ocx, ocy, centre, frs,
+		middle - width_centre,
+		0,
+		width_centre);
+
+	/*
+	 * If there is no focus given, keep the centre in focus.
+	 */
+	if (focus_start == -1 || focus_end == -1)
+		focus_start = focus_end = list->cx / 2;
+
+	/*
+	 * We centre abs_centre and the list together, so their shared centre is
+	 * in the perfect centre of horizontal space.
+	 */
+	abs_centre_offset = (available - width_list - width_abs_centre) / 2;
+
+	/*
+	 * Write abs_centre before the list.
+	 */
+	format_draw_put(octx, ocx, ocy, abs_centre, frs, abs_centre_offset,
+	    0, width_abs_centre);
+	abs_centre_offset += width_abs_centre;
+
+	/*
+	 * Draw the list in the absolute centre
+	 */
+	format_draw_put_list(octx, ocx, ocy, abs_centre_offset, width_list,
+	    list, list_left, list_right, focus_start, focus_end, frs);
+	abs_centre_offset += width_list;
+
+	/*
+	 * Write after at the end of the centre
+	 */
+	format_draw_put(octx, ocx, ocy, after, frs, abs_centre_offset, 0,
+	    width_after);
 }
 
 /* Draw multiple characters. */
@@ -506,6 +652,7 @@ format_draw(struct screen_write_ctx *octx, const struct grid_cell *base,
 	enum { LEFT,
 	       CENTRE,
 	       RIGHT,
+	       ABSOLUTE_CENTRE,
 	       LIST,
 	       LIST_LEFT,
 	       LIST_RIGHT,
@@ -514,6 +661,7 @@ format_draw(struct screen_write_ctx *octx, const struct grid_cell *base,
 	const char	        *names[] = { "LEFT",
 					     "CENTRE",
 					     "RIGHT",
+					     "ABSOLUTE_CENTRE",
 					     "LIST",
 					     "LIST_LEFT",
 					     "LIST_RIGHT",
@@ -522,7 +670,11 @@ format_draw(struct screen_write_ctx *octx, const struct grid_cell *base,
 	struct screen		*os = octx->s, s[TOTAL];
 	struct screen_write_ctx	 ctx[TOTAL];
 	u_int			 ocx = os->cx, ocy = os->cy, n, i, width[TOTAL];
-	u_int			 map[] = { LEFT, LEFT, CENTRE, RIGHT };
+	u_int			 map[] = { LEFT,
+					   LEFT,
+					   CENTRE,
+					   RIGHT,
+					   ABSOLUTE_CENTRE };
 	int			 focus_start = -1, focus_end = -1;
 	int			 list_state = -1, fill = -1, even;
 	enum style_align	 list_align = STYLE_ALIGN_DEFAULT;
@@ -789,25 +941,35 @@ format_draw(struct screen_write_ctx *octx, const struct grid_cell *base,
 	case STYLE_ALIGN_DEFAULT:
 		/* No list. */
 		format_draw_none(octx, available, ocx, ocy, &s[LEFT],
-		    &s[CENTRE], &s[RIGHT], &frs);
+		    &s[CENTRE], &s[RIGHT], &s[ABSOLUTE_CENTRE], &frs);
 		break;
 	case STYLE_ALIGN_LEFT:
 		/* List is part of the left. */
 		format_draw_left(octx, available, ocx, ocy, &s[LEFT],
-		    &s[CENTRE], &s[RIGHT], &s[LIST], &s[LIST_LEFT],
+		    &s[CENTRE], &s[RIGHT], &s[ABSOLUTE_CENTRE], &s[LIST],
-		    &s[LIST_RIGHT], &s[AFTER], focus_start, focus_end, &frs);
+		    &s[LIST_LEFT], &s[LIST_RIGHT], &s[AFTER],
+		    focus_start, focus_end, &frs);
 		break;
 	case STYLE_ALIGN_CENTRE:
 		/* List is part of the centre. */
 		format_draw_centre(octx, available, ocx, ocy, &s[LEFT],
-		    &s[CENTRE], &s[RIGHT], &s[LIST], &s[LIST_LEFT],
+		    &s[CENTRE], &s[RIGHT], &s[ABSOLUTE_CENTRE], &s[LIST],
-		    &s[LIST_RIGHT], &s[AFTER], focus_start, focus_end, &frs);
+		    &s[LIST_LEFT], &s[LIST_RIGHT], &s[AFTER],
+		    focus_start, focus_end, &frs);
 		break;
 	case STYLE_ALIGN_RIGHT:
 		/* List is part of the right. */
 		format_draw_right(octx, available, ocx, ocy, &s[LEFT],
-		    &s[CENTRE], &s[RIGHT], &s[LIST], &s[LIST_LEFT],
+		    &s[CENTRE], &s[RIGHT], &s[ABSOLUTE_CENTRE], &s[LIST],
-		    &s[LIST_RIGHT], &s[AFTER], focus_start, focus_end, &frs);
+		    &s[LIST_LEFT], &s[LIST_RIGHT], &s[AFTER],
+		    focus_start, focus_end, &frs);
+		break;
+	case STYLE_ALIGN_ABSOLUTE_CENTRE:
+		/* List is in the centre of the entire horizontal space. */
+		format_draw_absolute_centre(octx, available, ocx, ocy, &s[LEFT],
+		    &s[CENTRE], &s[RIGHT], &s[ABSOLUTE_CENTRE], &s[LIST],
+		    &s[LIST_LEFT], &s[LIST_RIGHT], &s[AFTER],
+		    focus_start, focus_end, &frs);
 		break;
 	}
 

format.c

@@ -41,7 +41,6 @@
 struct format_expand_state;
 
 static char	*format_job_get(struct format_expand_state *, const char *);
-static void	 format_job_timer(int, short, void *);
 static char	*format_expand1(struct format_expand_state *, const char *);
 static int	 format_replace(struct format_expand_state *, const char *,
 		     size_t, char **, size_t *, size_t *);
@@ -69,7 +68,6 @@ struct format_job {
 };
 
 /* Format job tree. */
-static struct event format_job_event;
 static int format_job_cmp(struct format_job *, struct format_job *);
 static RB_HEAD(format_job_tree, format_job) format_jobs = RB_INITIALIZER();
 RB_GENERATE_STATIC(format_job_tree, format_job, entry, format_job_cmp);
@@ -437,6 +435,19 @@ format_job_tidy(struct format_job_tree *jobs, int force)
 	}
 }
 
+/* Tidy old jobs for all clients. */
+void
+format_tidy_jobs(void)
+{
+	struct client	*c;
+
+	format_job_tidy(&format_jobs, 0);
+	TAILQ_FOREACH(c, &clients, entry) {
+		if (c->jobs != NULL)
+			format_job_tidy(c->jobs, 0);
+	}
+}
+
 /* Remove old jobs for client. */
 void
 format_lost_client(struct client *c)
@@ -446,23 +457,6 @@ format_lost_client(struct client *c)
 	free(c->jobs);
 }
 
-/* Remove old jobs periodically. */
-static void
-format_job_timer(__unused int fd, __unused short events, __unused void *arg)
-{
-	struct client	*c;
-	struct timeval	 tv = { .tv_sec = 60 };
-
-	format_job_tidy(&format_jobs, 0);
-	TAILQ_FOREACH(c, &clients, entry) {
-		if (c->jobs != NULL)
-			format_job_tidy(c->jobs, 0);
-	}
-
-	evtimer_del(&format_job_event);
-	evtimer_add(&format_job_event, &tv);
-}
-
 /* Wrapper for asprintf. */
 static char * printflike(1, 2)
 format_printf(const char *fmt, ...)
@@ -3048,11 +3042,6 @@ format_create(struct client *c, struct cmdq_item *item, int tag, int flags)
 {
 	struct format_tree	*ft;
 
-	if (!event_initialized(&format_job_event)) {
-		evtimer_set(&format_job_event, format_job_timer, NULL);
-		format_job_timer(-1, 0, NULL);
-	}
-
 	ft = xcalloc(1, sizeof *ft);
 	RB_INIT(&ft->tree);
 

layout-custom.c

@@ -233,7 +233,7 @@ layout_parse(struct window *w, const char *layout)
 
 	/* Update pane offsets and sizes. */
 	layout_fix_offsets(w);
-	layout_fix_panes(w);
+	layout_fix_panes(w, NULL);
 	recalculate_sizes();
 
 	layout_print_cell(lc, __func__, 0);

layout-set.c

@@ -160,7 +160,7 @@ layout_set_even(struct window *w, enum layout_type type)
 
 	/* Fix cell offsets. */
 	layout_fix_offsets(w);
-	layout_fix_panes(w);
+	layout_fix_panes(w, NULL);
 
 	layout_print_cell(w->layout_root, __func__, 1);
 
@@ -270,7 +270,7 @@ layout_set_main_h(struct window *w)
 
 	/* Fix cell offsets. */
 	layout_fix_offsets(w);
-	layout_fix_panes(w);
+	layout_fix_panes(w, NULL);
 
 	layout_print_cell(w->layout_root, __func__, 1);
 
@@ -368,7 +368,7 @@ layout_set_main_v(struct window *w)
 
 	/* Fix cell offsets. */
 	layout_fix_offsets(w);
-	layout_fix_panes(w);
+	layout_fix_panes(w, NULL);
 
 	layout_print_cell(w->layout_root, __func__, 1);
 
@@ -477,7 +477,7 @@ layout_set_tiled(struct window *w)
 
 	/* Fix cell offsets. */
 	layout_fix_offsets(w);
-	layout_fix_panes(w);
+	layout_fix_panes(w, NULL);
 
 	layout_print_cell(w->layout_root, __func__, 1);
 

layout.c

@@ -286,7 +286,7 @@ layout_add_border(struct window *w, struct layout_cell *lc, int status)
 
 /* Update pane offsets and sizes based on their cells. */
 void
-layout_fix_panes(struct window *w)
+layout_fix_panes(struct window *w, struct window_pane *skip)
 {
 	struct window_pane	*wp;
 	struct layout_cell	*lc;
@@ -294,7 +294,7 @@ layout_fix_panes(struct window *w)
 
 	status = options_get_number(w->options, "pane-border-status");
 	TAILQ_FOREACH(wp, &w->panes, entry) {
-		if ((lc = wp->layout_cell) == NULL)
+		if ((lc = wp->layout_cell) == NULL || wp == skip)
 			continue;
 
 		wp->xoff = lc->xoff;
@@ -482,7 +482,7 @@ layout_init(struct window *w, struct window_pane *wp)
 	lc = w->layout_root = layout_create_cell(NULL);
 	layout_set_size(lc, w->sx, w->sy, 0, 0);
 	layout_make_leaf(lc, wp);
-	layout_fix_panes(w);
+	layout_fix_panes(w, NULL);
 }
 
 void
@@ -540,7 +540,7 @@ layout_resize(struct window *w, u_int sx, u_int sy)
 
 	/* Fix cell offsets. */
 	layout_fix_offsets(w);
-	layout_fix_panes(w);
+	layout_fix_panes(w, NULL);
 }
 
 /* Resize a pane to an absolute size. */
@@ -600,7 +600,7 @@ layout_resize_layout(struct window *w, struct layout_cell *lc,
 
 	/* Fix cell offsets. */
 	layout_fix_offsets(w);
-	layout_fix_panes(w);
+	layout_fix_panes(w, NULL);
 	notify_window("window-layout-changed", w);
 }
 
@@ -704,10 +704,14 @@ layout_resize_pane_shrink(struct window *w, struct layout_cell *lc,
 
 /* Assign window pane to newly split cell. */
 void
-layout_assign_pane(struct layout_cell *lc, struct window_pane *wp)
+layout_assign_pane(struct layout_cell *lc, struct window_pane *wp,
+    int do_not_resize)
 {
 	layout_make_leaf(lc, wp);
-	layout_fix_panes(wp->window);
+	if (do_not_resize)
+		layout_fix_panes(wp->window, wp);
+	else
+		layout_fix_panes(wp->window, NULL);
 }
 
 /* Calculate the new pane size for resized parent. */
@@ -1040,7 +1044,7 @@ layout_close_pane(struct window_pane *wp)
 	/* Fix pane offsets and sizes. */
 	if (w->layout_root != NULL) {
 		layout_fix_offsets(w);
-		layout_fix_panes(w);
+		layout_fix_panes(w, NULL);
 	}
 	notify_window("window-layout-changed", w);
 }
@@ -1109,7 +1113,7 @@ layout_spread_out(struct window_pane *wp)
 	do {
 		if (layout_spread_cell(w, parent)) {
 			layout_fix_offsets(w);
-			layout_fix_panes(w);
+			layout_fix_panes(w, NULL);
 			break;
 		}
 	} while ((parent = parent->parent) != NULL);

options-table.c

@@ -45,7 +45,7 @@ static const char *options_table_status_keys_list[] = {
 	"emacs", "vi", NULL
 };
 static const char *options_table_status_justify_list[] = {
-	"left", "centre", "right", NULL
+	"left", "centre", "right", "absolute-centre", NULL
 };
 static const char *options_table_status_position_list[] = {
 	"top", "bottom", NULL

options.c

@@ -1115,7 +1115,7 @@ options_push_changes(const char *name)
 	}
 	if (strcmp(name, "pane-border-status") == 0) {
 		RB_FOREACH(w, windows, &windows)
-			layout_fix_panes(w);
+			layout_fix_panes(w, NULL);
 	}
 	RB_FOREACH(s, sessions, &sessions)
 		status_update_cache(s);

server.c

@@ -46,6 +46,7 @@ static int		 server_fd = -1;
 static uint64_t		 server_client_flags;
 static int		 server_exit;
 static struct event	 server_ev_accept;
+static struct event	 server_ev_tidy;
 
 struct cmd_find_state	 marked_pane;
 
@@ -149,6 +150,19 @@ fail:
 	return (-1);
 }
 
+/* Tidy up every hour. */
+static void
+server_tidy_event(__unused int fd, __unused short events, __unused void *data)
+{
+    struct timeval	tv = { .tv_sec = 3600 };
+    uint64_t		t = get_timer();
+
+    format_tidy_jobs();
+
+    log_debug("%s: took %llu milliseconds", __func__, get_timer() - t);
+    evtimer_add(&server_ev_tidy, &tv);
+}
+
 /* Fork new server. */
 int
 server_start(struct tmuxproc *client, int flags, struct event_base *base,
@@ -158,6 +172,7 @@ server_start(struct tmuxproc *client, int flags, struct event_base *base,
 	sigset_t	 set, oldset;
 	struct client	*c = NULL;
 	char		*cause = NULL;
+	struct timeval	 tv = { .tv_sec = 3600 };
 
 	sigfillset(&set);
 	sigprocmask(SIG_BLOCK, &set, &oldset);
@@ -216,6 +231,9 @@ server_start(struct tmuxproc *client, int flags, struct event_base *base,
 		free(cause);
 	}
 
+	evtimer_set(&server_ev_tidy, server_tidy_event, NULL);
+	evtimer_add(&server_ev_tidy, &tv);
+
 	server_add_accept(0);
 	proc_loop(server_proc, server_loop);
 

spawn.c

@@ -259,7 +259,10 @@ spawn_pane(struct spawn_context *sc, char **cause)
 		layout_init(w, new_wp);
 	} else {
 		new_wp = window_add_pane(w, sc->wp0, hlimit, sc->flags);
-		layout_assign_pane(sc->lc, new_wp);
+		if (sc->flags & SPAWN_ZOOM)
+			layout_assign_pane(sc->lc, new_wp, 1);
+		else
+			layout_assign_pane(sc->lc, new_wp, 0);
 	}
 
 	/*

style.c

@@ -139,6 +139,8 @@ style_parse(struct style *sy, const struct grid_cell *base, const char *in)
 				sy->align = STYLE_ALIGN_CENTRE;
 			else if (strcasecmp(tmp + 6, "right") == 0)
 				sy->align = STYLE_ALIGN_RIGHT;
+			else if (strcasecmp(tmp + 6, "absolute-centre") == 0)
+				sy->align = STYLE_ALIGN_ABSOLUTE_CENTRE;
 			else
 				goto error;
 		} else if (end > 5 && strncasecmp(tmp, "fill=", 5) == 0) {
@@ -227,6 +229,8 @@ style_tostring(struct style *sy)
 			tmp = "centre";
 		else if (sy->align == STYLE_ALIGN_RIGHT)
 			tmp = "right";
+		else if (sy->align == STYLE_ALIGN_ABSOLUTE_CENTRE)
+			tmp = "absolute-centre";
 		off += xsnprintf(s + off, sizeof s - off, "%salign=%s", comma,
 		    tmp);
 		comma = ",";

tmux.1

@@ -2804,7 +2804,7 @@ is given and the selected window is already the current window,
 the command behaves like
 .Ic last-window .
 .It Xo Ic split-window
-.Op Fl bdfhIvP
+.Op Fl bdfhIvPZ
 .Op Fl c Ar start-directory
 .Op Fl e Ar environment
 .Op Fl l Ar size
@@ -2840,6 +2840,8 @@ option creates a new pane spanning the full window height (with
 or full window width (with
 .Fl v ) ,
 instead of splitting the active pane.
+.Fl Z
+zooms if the window is not zoomed, or keeps it zoomed if already zoomed.
 .Pp
 An empty
 .Ar shell-command
@@ -3813,10 +3815,11 @@ seconds.
 By default, updates will occur every 15 seconds.
 A setting of zero disables redrawing at interval.
 .It Xo Ic status-justify
-.Op Ic left | centre | right
+.Op Ic left | centre | right | absolute-centre
 .Xc
-Set the position of the window list component of the status line: left, centre
+Set the position of the window list in the status line: left, centre or right.
-or right justified.
+centre puts the window list in the relative centre of the available free space;
+absolute-centre uses the centre of the entire horizontal space.
 .It Xo Ic status-keys
 .Op Ic vi | emacs
 .Xc

tmux.h

@@ -741,7 +741,8 @@ enum style_align {
 	STYLE_ALIGN_DEFAULT,
 	STYLE_ALIGN_LEFT,
 	STYLE_ALIGN_CENTRE,
-	STYLE_ALIGN_RIGHT
+	STYLE_ALIGN_RIGHT,
+	STYLE_ALIGN_ABSOLUTE_CENTRE
 };
 
 /* Style list. */
@@ -1863,6 +1864,7 @@ struct spawn_context {
 #define SPAWN_NONOTIFY 0x10
 #define SPAWN_FULLSIZE 0x20
 #define SPAWN_EMPTY 0x40
+#define SPAWN_ZOOM 0x80
 };
 
 /* Mode tree sort order. */
@@ -1946,6 +1948,7 @@ char		*paste_make_sample(struct paste_buffer *);
 struct format_tree;
 struct format_modifier;
 typedef void *(*format_cb)(struct format_tree *);
+void		 format_tidy_jobs(void);
 const char	*format_skip(const char *, const char *);
 int		 format_true(const char *);
 struct format_tree *format_create(struct client *, struct cmdq_item *, int,
@@ -2753,7 +2756,7 @@ void		 window_resize(struct window *, u_int, u_int, int, int);
 void		 window_pane_send_resize(struct window_pane *, int);
 int		 window_zoom(struct window_pane *);
 int		 window_unzoom(struct window *);
-int		 window_push_zoom(struct window *, int);
+int		 window_push_zoom(struct window *, int, int);
 int		 window_pop_zoom(struct window *);
 void		 window_lost_pane(struct window *, struct window_pane *);
 void		 window_remove_pane(struct window *, struct window_pane *);
@@ -2816,7 +2819,7 @@ void		 layout_set_size(struct layout_cell *, u_int, u_int, u_int,
 void		 layout_make_leaf(struct layout_cell *, struct window_pane *);
 void		 layout_make_node(struct layout_cell *, enum layout_type);
 void		 layout_fix_offsets(struct window *);
-void		 layout_fix_panes(struct window *);
+void		 layout_fix_panes(struct window *, struct window_pane *);
 void		 layout_resize_adjust(struct window *, struct layout_cell *,
 		     enum layout_type, int);
 void		 layout_init(struct window *, struct window_pane *);
@@ -2826,7 +2829,8 @@ void		 layout_resize_pane(struct window_pane *, enum layout_type,
 		     int, int);
 void		 layout_resize_pane_to(struct window_pane *, enum layout_type,
 		     u_int);
-void		 layout_assign_pane(struct layout_cell *, struct window_pane *);
+void		 layout_assign_pane(struct layout_cell *, struct window_pane *,
+		     int);
 struct layout_cell *layout_split_pane(struct window_pane *, enum layout_type,
 		     int, int);
 void		 layout_close_pane(struct window_pane *);

window.c

@@ -629,18 +629,18 @@ window_unzoom(struct window *w)
 		wp->layout_cell = wp->saved_layout_cell;
 		wp->saved_layout_cell = NULL;
 	}
-	layout_fix_panes(w);
+	layout_fix_panes(w, NULL);
 	notify_window("window-layout-changed", w);
 
 	return (0);
 }
 
 int
-window_push_zoom(struct window *w, int flag)
+window_push_zoom(struct window *w, int always, int flag)
 {
 	log_debug("%s: @%u %d", __func__, w->id,
 	    flag && (w->flags & WINDOW_ZOOMED));
-	if (flag && (w->flags & WINDOW_ZOOMED))
+	if (flag && (always || (w->flags & WINDOW_ZOOMED)))
 		w->flags |= WINDOW_WASZOOMED;
 	else
 		w->flags &= ~WINDOW_WASZOOMED;