cmd-swap-pane.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2009 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 two panes.
  27  */
  28
  29 static enum cmd_retval  cmd_swap_pane_exec(struct cmd *, struct cmdq_item *);
  30
  31 const struct cmd_entry cmd_swap_pane_entry = {
  32         .name = "swap-pane",
  33         .alias = "swapp",
  34
  35         .args = { "dDs:t:UZ", 0, 0, NULL },
  36         .usage = "[-dDUZ] " CMD_SRCDST_PANE_USAGE,
  37
  38         .source = { 's', CMD_FIND_PANE, CMD_FIND_DEFAULT_MARKED },
  39         .target = { 't', CMD_FIND_PANE, 0 },
  40
  41         .flags = 0,
  42         .exec = cmd_swap_pane_exec
  43 };
  44
  45 static enum cmd_retval
  46 cmd_swap_pane_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 window           *src_w, *dst_w;
  52         struct window_pane      *tmp_wp, *src_wp, *dst_wp;
  53         struct layout_cell      *src_lc, *dst_lc;
  54         u_int                    sx, sy, xoff, yoff;
  55
  56         dst_w = target->wl->window;
  57         dst_wp = target->wp;
  58         src_w = source->wl->window;
  59         src_wp = source->wp;
  60
  61         if (window_push_zoom(dst_w, 0, args_has(args, 'Z')))
  62                 server_redraw_window(dst_w);
  63
  64         if (args_has(args, 'D')) {
  65                 src_w = dst_w;
  66                 src_wp = TAILQ_NEXT(dst_wp, entry);
  67                 if (src_wp == NULL)
  68                         src_wp = TAILQ_FIRST(&dst_w->panes);
  69         } else if (args_has(args, 'U')) {
  70                 src_w = dst_w;
  71                 src_wp = TAILQ_PREV(dst_wp, window_panes, entry);
  72                 if (src_wp == NULL)
  73                         src_wp = TAILQ_LAST(&dst_w->panes, window_panes);
  74         }
  75
  76         if (src_w != dst_w && window_push_zoom(src_w, 0, args_has(args, 'Z')))
  77                 server_redraw_window(src_w);
  78
  79         if (src_wp == dst_wp)
  80                 goto out;
  81
  82         server_client_remove_pane(src_wp);
  83         server_client_remove_pane(dst_wp);
  84
  85         tmp_wp = TAILQ_PREV(dst_wp, window_panes, entry);
  86         TAILQ_REMOVE(&dst_w->panes, dst_wp, entry);
  87         TAILQ_REPLACE(&src_w->panes, src_wp, dst_wp, entry);
  88         if (tmp_wp == src_wp)
  89                 tmp_wp = dst_wp;
  90         if (tmp_wp == NULL)
  91                 TAILQ_INSERT_HEAD(&dst_w->panes, src_wp, entry);
  92         else
  93                 TAILQ_INSERT_AFTER(&dst_w->panes, tmp_wp, src_wp, entry);
  94
  95         src_lc = src_wp->layout_cell;
  96         dst_lc = dst_wp->layout_cell;
  97         src_lc->wp = dst_wp;
  98         dst_wp->layout_cell = src_lc;
  99         dst_lc->wp = src_wp;
 100         src_wp->layout_cell = dst_lc;
 101
 102         src_wp->window = dst_w;
 103         options_set_parent(src_wp->options, dst_w->options);
 104         src_wp->flags |= PANE_STYLECHANGED;
 105         dst_wp->window = src_w;
 106         options_set_parent(dst_wp->options, src_w->options);
 107         dst_wp->flags |= PANE_STYLECHANGED;
 108
 109         sx = src_wp->sx; sy = src_wp->sy;
 110         xoff = src_wp->xoff; yoff = src_wp->yoff;
 111         src_wp->xoff = dst_wp->xoff; src_wp->yoff = dst_wp->yoff;
 112         window_pane_resize(src_wp, dst_wp->sx, dst_wp->sy);
 113         dst_wp->xoff = xoff; dst_wp->yoff = yoff;
 114         window_pane_resize(dst_wp, sx, sy);
 115
 116         if (!args_has(args, 'd')) {
 117                 if (src_w != dst_w) {
 118                         window_set_active_pane(src_w, dst_wp, 1);
 119                         window_set_active_pane(dst_w, src_wp, 1);
 120                 } else {
 121                         tmp_wp = dst_wp;
 122                         window_set_active_pane(src_w, tmp_wp, 1);
 123                 }
 124         } else {
 125                 if (src_w->active == src_wp)
 126                         window_set_active_pane(src_w, dst_wp, 1);
 127                 if (dst_w->active == dst_wp)
 128                         window_set_active_pane(dst_w, src_wp, 1);
 129         }
 130         if (src_w != dst_w) {
 131                 if (src_w->last == src_wp)
 132                         src_w->last = NULL;
 133                 if (dst_w->last == dst_wp)
 134                         dst_w->last = NULL;
 135         }
 136         server_redraw_window(src_w);
 137         server_redraw_window(dst_w);
 138
 139 out:
 140         if (window_pop_zoom(src_w))
 141                 server_redraw_window(src_w);
 142         if (src_w != dst_w && window_pop_zoom(dst_w))
 143                 server_redraw_window(dst_w);
 144         return (CMD_RETURN_NORMAL);
 145 }