Add flags to move-pane to move floating panes around (-U, -D, -L, -R

similar to resize-pane; -X, -Y similar to new-pane).

usr.bin/tmux/cmd-join-pane.c

@@ -1,4 +1,4 @@
-/* $OpenBSD: cmd-join-pane.c,v 1.58 2026/06/07 09:54:25 nicm Exp $ */
+/* $OpenBSD: cmd-join-pane.c,v 1.59 2026/06/13 16:16:18 nicm Exp $ */
 
 /*
  * Copyright (c) 2011 George Nachman <tmux@georgester.com>
@@ -31,6 +31,8 @@
  */
 
 static enum cmd_retval	cmd_join_pane_exec(struct cmd *, struct cmdq_item *);
+static enum cmd_retval	cmd_join_pane_move(struct cmdq_item *, struct args *,
+			    struct winlink *, struct window_pane *);
 
 const struct cmd_entry cmd_join_pane_entry = {
 	.name = "join-pane",
@@ -50,8 +52,10 @@ const struct cmd_entry cmd_move_pane_entry = {
 	.name = "move-pane",
 	.alias = "movep",
 
-	.args = { "bdfhvp:l:s:t:", 0, 0, NULL },
-	.usage = "[-bdfhv] [-l size] " CMD_SRCDST_PANE_USAGE,
+	.args = { "D::L::R::U::X:Y:bdfhvp:l:s:t:", 0, 0, NULL },
+	.usage = "[-bdfhv] [-D lines] [-L columns] [-R columns] "
+		 "[-U lines] [-X x-position] [-Y y-position] [-l size] "
+		 CMD_SRCDST_PANE_USAGE,
 
 	.source = { 's', CMD_FIND_PANE, CMD_FIND_DEFAULT_MARKED },
 	.target = { 't', CMD_FIND_PANE, 0 },
@@ -60,6 +64,78 @@ const struct cmd_entry cmd_move_pane_entry = {
 	.exec = cmd_join_pane_exec
 };
 
+static enum cmd_retval
+cmd_join_pane_move(struct cmdq_item *item, struct args *args, struct winlink *wl,
+    struct window_pane *wp)
+{
+	struct window		*w = wl->window;
+	struct layout_cell	*lc = wp->layout_cell;
+	const char		*errstr, *argval;
+	const char		 flags[] = { 'U', 'D', 'L', 'R' };
+	char			*cause = NULL, flag;
+	int			 xoff, yoff, adjust;
+	u_int			 i;
+
+	if (!window_pane_is_floating(wp)) {
+		cmdq_error(item, "pane is not floating");
+		return (CMD_RETURN_ERROR);
+	}
+
+	xoff = lc->xoff;
+	yoff = lc->yoff;
+
+	if (args_has(args, 'X')) {
+		xoff = args_percentage_and_expand(args, 'X', -(int)lc->sx,
+		    w->sx, w->sx, item, &cause);
+		if (cause != NULL) {
+			cmdq_error(item, "position %s", cause);
+			free(cause);
+			return (CMD_RETURN_ERROR);
+		}
+	}
+	if (args_has(args, 'Y')) {
+		yoff = args_percentage_and_expand(args, 'Y', -(int)lc->sy,
+		    w->sy, w->sy, item, &cause);
+		if (cause != NULL) {
+			cmdq_error(item, "position %s", cause);
+			free(cause);
+			return (CMD_RETURN_ERROR);
+		}
+	}
+
+	for (i = 0; i < nitems(flags); i++) {
+		flag = flags[i];
+		if (!args_has(args, flag))
+			continue;
+
+		argval = args_get(args, flag);
+		if (argval == NULL)
+			argval = "1";
+		adjust = strtonum(argval, INT_MIN, INT_MAX, &errstr);
+		if (errstr != NULL) {
+			cmdq_error(item, "offset %s", errstr);
+			return (CMD_RETURN_ERROR);
+		}
+
+		if (flag == 'U')
+			yoff -= adjust;
+		else if (flag == 'D')
+			yoff += adjust;
+		else if (flag == 'L')
+			xoff -= adjust;
+		else
+			xoff += adjust;
+	}
+
+	lc->xoff = xoff;
+	lc->yoff = yoff;
+	layout_fix_panes(w, NULL);
+	notify_window("window-layout-changed", w);
+	server_redraw_window(w);
+
+	return (CMD_RETURN_NORMAL);
+}
+
 static enum cmd_retval
 cmd_join_pane_exec(struct cmd *self, struct cmdq_item *item)
 {
@@ -82,6 +158,16 @@ cmd_join_pane_exec(struct cmd *self, struct cmdq_item *item)
 	dst_idx = dst_wl->idx;
 	server_unzoom_window(dst_w);
 
+	if (cmd_get_entry(self) == &cmd_move_pane_entry) {
+		if (args_has(args, 'X') ||
+		    args_has(args, 'Y') ||
+		    args_has(args, 'U') ||
+		    args_has(args, 'D') ||
+		    args_has(args, 'L') ||
+		    args_has(args, 'R'))
+			return (cmd_join_pane_move(item, args, dst_wl, dst_wp));
+	}
+
 	src_wl = source->wl;
 	src_wp = source->wp;
 	src_w = src_wl->window;

usr.bin/tmux/cmd-resize-pane.c

@@ -1,4 +1,4 @@
-/* $OpenBSD: cmd-resize-pane.c,v 1.56 2026/06/11 10:16:19 nicm Exp $ */
+/* $OpenBSD: cmd-resize-pane.c,v 1.57 2026/06/13 16:16:18 nicm Exp $ */
 
 /*
  * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -41,7 +41,7 @@ const struct cmd_entry cmd_resize_pane_entry = {
 	.alias = "resizep",
 
 	.args = { "D::L::MR::Tt:U::x:y:Z", 0, 1, NULL },
-	.usage = "[-MTZ] [-U lines] [-D lines] [-L columns] [-R columns] "
+	.usage = "[-MTZ] [-D lines] [-L columns] [-R columns] [-U lines] "
 		 "[-x width] [-y height] " CMD_TARGET_PANE_USAGE,
 
 	.target = { 't', CMD_FIND_PANE, 0 },

usr.bin/tmux/tmux.1

@@ -1,4 +1,4 @@
-.\" $OpenBSD: tmux.1,v 1.1083 2026/06/13 10:32:54 nicm Exp $
+.\" $OpenBSD: tmux.1,v 1.1084 2026/06/13 16:16:18 nicm Exp $
 .\"
 .\" Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
 .\"
@@ -3304,13 +3304,34 @@ reverses the sort order.
 .Tg movep
 .It Xo Ic move\-pane
 .Op Fl bdfhv
+.Op Fl D Op Ar lines
+.Op Fl L Op Ar columns
+.Op Fl R Op Ar columns
+.Op Fl U Op Ar lines
+.Op Fl X Ar x\-position
+.Op Fl Y Ar y\-position
 .Op Fl l Ar size
 .Op Fl s Ar src\-pane
 .Op Fl t Ar dst\-pane
 .Xc
 .D1 Pq alias: Ic movep
 Does the same as
-.Ic join\-pane .
+.Ic join\-pane ,
+except if given
+.Fl U ,
+.Fl D ,
+.Fl L
+or
+.Fl R
+in which case move the target floating pane up, down, left or right by
+.Ar lines
+or
+.Ar columns
+(one if omitted);
+.Fl X
+and
+.Fl Y
+move to the an absolute position.
 .Tg movew
 .It Xo Ic move\-window
 .Op Fl abrdk
@@ -3612,13 +3633,13 @@ if specified, to
 .Tg resizep
 .It Xo Ic resize\-pane
 .Op Fl MTZ
-.Op Fl t Ar target\-pane
-.Op Fl U Ar lines
 .Op Fl D Ar lines
 .Op Fl L Ar columns
 .Op Fl R Ar columns
+.Op Fl U Ar lines
 .Op Fl x Ar width
 .Op Fl y Ar height
+.Op Fl t Ar target\-pane
 .Xc
 .D1 Pq alias: Ic resizep
 Resize a pane, up, down, left or right by a specified adjustment with
@@ -3626,10 +3647,8 @@ Resize a pane, up, down, left or right by a specified adjustment with
 .Fl D ,
 .Fl L
 or
-.Fl R ,
-or
-to an absolute size
-with
+.Fl R ;
+or to an absolute size with
 .Fl x
 or
 .Fl y .