cmd-swap-window.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #include <sys/types.h>
  20
  21 #include <stdlib.h>
  22
  23 #include "tmux.h"
  24
  25 /*
  26  * Swap one window with another.
  27  */
  28
  29 static enum cmd_retval  cmd_swap_window_exec(struct cmd *, struct cmdq_item *);
  30
  31 const struct cmd_entry cmd_swap_window_entry = {
  32         .name = "swap-window",
  33         .alias = "swapw",
  34
  35         .args = { "ds:t:", 0, 0, NULL },
  36         .usage = "[-d] " CMD_SRCDST_WINDOW_USAGE,
  37
  38         .source = { 's', CMD_FIND_WINDOW, CMD_FIND_DEFAULT_MARKED },
  39         .target = { 't', CMD_FIND_WINDOW, 0 },
  40
  41         .flags = 0,
  42         .exec = cmd_swap_window_exec
  43 };
  44
  45 static enum cmd_retval
  46 cmd_swap_window_exec(struct cmd *self, struct cmdq_item *item)
  47 {
  48         struct args             *args = cmd_get_args(self);
  49         struct cmd_find_state   *source = cmdq_get_source(item);
  50         struct cmd_find_state   *target = cmdq_get_target(item);
  51         struct session          *src = source->s, *dst = target->s;
  52         struct session_group    *sg_src, *sg_dst;
  53         struct winlink          *wl_src = source->wl, *wl_dst = target->wl;
  54         struct window           *w_src, *w_dst;
  55
  56         sg_src = session_group_contains(src);
  57         sg_dst = session_group_contains(dst);
  58
  59         if (src != dst &&
  60             sg_src != NULL &&
  61             sg_dst != NULL &&
  62             sg_src == sg_dst) {
  63                 cmdq_error(item, "can't move window, sessions are grouped");
  64                 return (CMD_RETURN_ERROR);
  65         }
  66
  67         if (wl_dst->window == wl_src->window)
  68                 return (CMD_RETURN_NORMAL);
  69
  70         w_dst = wl_dst->window;
  71         TAILQ_REMOVE(&w_dst->winlinks, wl_dst, wentry);
  72         w_src = wl_src->window;
  73         TAILQ_REMOVE(&w_src->winlinks, wl_src, wentry);
  74
  75         wl_dst->window = w_src;
  76         TAILQ_INSERT_TAIL(&w_src->winlinks, wl_dst, wentry);
  77         wl_src->window = w_dst;
  78         TAILQ_INSERT_TAIL(&w_dst->winlinks, wl_src, wentry);
  79
  80         if (args_has(args, 'd')) {
  81                 session_select(dst, wl_dst->idx);
  82                 if (src != dst)
  83                         session_select(src, wl_src->idx);
  84         }
  85         session_group_synchronize_from(src);
  86         server_redraw_session_group(src);
  87         if (src != dst) {
  88                 session_group_synchronize_from(dst);
  89                 server_redraw_session_group(dst);
  90         }
  91         recalculate_sizes();
  92
  93         return (CMD_RETURN_NORMAL);
  94 }