1 files changed, 94 insertions, 0 deletions
diff --git a/cmd-swap-window.c b/cmd-swap-window.c
new file mode 100644
index 0000000..b765112
--- /dev/null
+++ b/cmd-swap-window.c
@@ -0,0 +1,94 @@
+/* $OpenBSD$ */
+
+/*
+ * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include <stdlib.h>
+
+#include "tmux.h"
+
+/*
+ * Swap one window with another.
+ */
+
+static enum cmd_retval	cmd_swap_window_exec(struct cmd *, struct cmdq_item *);
+
+const struct cmd_entry cmd_swap_window_entry = {
+	.name = "swap-window",
+	.alias = "swapw",
+
+	.args = { "ds:t:", 0, 0, NULL },
+	.usage = "[-d] " CMD_SRCDST_WINDOW_USAGE,
+
+	.source = { 's', CMD_FIND_WINDOW, CMD_FIND_DEFAULT_MARKED },
+	.target = { 't', CMD_FIND_WINDOW, 0 },
+
+	.flags = 0,
+	.exec = cmd_swap_window_exec
+};
+
+static enum cmd_retval
+cmd_swap_window_exec(struct cmd *self, struct cmdq_item *item)
+{
+	struct args		*args = cmd_get_args(self);
+	struct cmd_find_state	*source = cmdq_get_source(item);
+	struct cmd_find_state	*target = cmdq_get_target(item);
+	struct session		*src = source->s, *dst = target->s;
+	struct session_group	*sg_src, *sg_dst;
+	struct winlink		*wl_src = source->wl, *wl_dst = target->wl;
+	struct window		*w_src, *w_dst;
+
+	sg_src = session_group_contains(src);
+	sg_dst = session_group_contains(dst);
+
+	if (src != dst &&
+	    sg_src != NULL &&
+	    sg_dst != NULL &&
+	    sg_src == sg_dst) {
+		cmdq_error(item, "can't move window, sessions are grouped");
+		return (CMD_RETURN_ERROR);
+	}
+
+	if (wl_dst->window == wl_src->window)
+		return (CMD_RETURN_NORMAL);
+
+	w_dst = wl_dst->window;
+	TAILQ_REMOVE(&w_dst->winlinks, wl_dst, wentry);
+	w_src = wl_src->window;
+	TAILQ_REMOVE(&w_src->winlinks, wl_src, wentry);
+
+	wl_dst->window = w_src;
+	TAILQ_INSERT_TAIL(&w_src->winlinks, wl_dst, wentry);
+	wl_src->window = w_dst;
+	TAILQ_INSERT_TAIL(&w_dst->winlinks, wl_src, wentry);
+
+	if (args_has(args, 'd')) {
+		session_select(dst, wl_dst->idx);
+		if (src != dst)
+			session_select(src, wl_src->idx);
+	}
+	session_group_synchronize_from(src);
+	server_redraw_session_group(src);
+	if (src != dst) {
+		session_group_synchronize_from(dst);
+		server_redraw_session_group(dst);
+	}
+	recalculate_sizes();
+
+	return (CMD_RETURN_NORMAL);
+}