cmd-swap-pane.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
   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 void    cmd_swap_pane_init(struct cmd *, int);
  30 int     cmd_swap_pane_exec(struct cmd *, struct cmd_ctx *);
  31
  32 const struct cmd_entry cmd_swap_pane_entry = {
  33         "swap-pane", "swapp",
  34         "[-dDU] " CMD_SRCDST_PANE_USAGE,
  35         0, "dDU",
  36         cmd_swap_pane_init,
  37         cmd_srcdst_parse,
  38         cmd_swap_pane_exec,
  39         cmd_srcdst_free,
  40         cmd_srcdst_print
  41 };
  42
  43 void
  44 cmd_swap_pane_init(struct cmd *self, int key)
  45 {
  46         struct cmd_target_data  *data;
  47
  48         cmd_srcdst_init(self, key);
  49         data = self->data;
  50
  51         if (key == '{')
  52                 cmd_set_flag(&data->chflags, 'U');
  53         else if (key == '}')
  54                 cmd_set_flag(&data->chflags, 'D');
  55 }
  56
  57
  58 int
  59 cmd_swap_pane_exec(struct cmd *self, struct cmd_ctx *ctx)
  60 {
  61         struct cmd_srcdst_data  *data = self->data;
  62         struct winlink          *src_wl, *dst_wl;
  63         struct window           *src_w, *dst_w;
  64         struct window_pane      *tmp_wp, *src_wp, *dst_wp;
  65         struct layout_cell      *src_lc, *dst_lc;
  66         u_int                    sx, sy, xoff, yoff;
  67
  68         if (data == NULL)
  69                 return (0);
  70
  71         if ((dst_wl = cmd_find_pane(ctx, data->dst, NULL, &dst_wp)) == NULL)
  72                 return (-1);
  73         dst_w = dst_wl->window;
  74
  75         if (data->src == NULL) {
  76                 src_w = dst_w;
  77                 if (cmd_check_flag(data->chflags, 'D')) {
  78                         src_wp = TAILQ_NEXT(dst_wp, entry);
  79                         if (src_wp == NULL)
  80                                 src_wp = TAILQ_FIRST(&dst_w->panes);
  81                 } else if (cmd_check_flag(data->chflags, 'U')) {
  82                         src_wp = TAILQ_PREV(dst_wp, window_panes, entry);
  83                         if (src_wp == NULL)
  84                                 src_wp = TAILQ_LAST(&dst_w->panes, window_panes);
  85                 } else
  86                         return (0);
  87         } else {
  88                 src_wl = cmd_find_pane(ctx, data->src, NULL, &src_wp);
  89                 if (src_wl == NULL)
  90                         return (-1);
  91                 src_w = src_wl->window;
  92         }
  93
  94         if (src_wp == dst_wp)
  95                 return (0);
  96
  97         tmp_wp = TAILQ_PREV(dst_wp, window_panes, entry);
  98         TAILQ_REMOVE(&dst_w->panes, dst_wp, entry);
  99         TAILQ_REPLACE(&src_w->panes, src_wp, dst_wp, entry);
 100         if (tmp_wp == src_wp)
 101                 tmp_wp = dst_wp;
 102         if (tmp_wp == NULL)
 103                 TAILQ_INSERT_HEAD(&dst_w->panes, src_wp, entry);
 104         else
 105                 TAILQ_INSERT_AFTER(&dst_w->panes, tmp_wp, src_wp, entry);
 106
 107         src_lc = src_wp->layout_cell;
 108         dst_lc = dst_wp->layout_cell;
 109         src_lc->wp = dst_wp;
 110         dst_wp->layout_cell = src_lc;
 111         dst_lc->wp = src_wp;
 112         src_wp->layout_cell = dst_lc;
 113
 114         src_wp->window = dst_w;
 115         dst_wp->window = src_w;
 116
 117         sx = src_wp->sx; sy = src_wp->sy;
 118         xoff = src_wp->xoff; yoff = src_wp->yoff;
 119         src_wp->xoff = dst_wp->xoff; src_wp->yoff = dst_wp->yoff;
 120         window_pane_resize(src_wp, dst_wp->sx, dst_wp->sy);
 121         dst_wp->xoff = xoff; dst_wp->yoff = yoff;
 122         window_pane_resize(dst_wp, sx, sy);
 123
 124         if (!cmd_check_flag(data->chflags, 'd')) {
 125                 if (src_w != dst_w) {
 126                         window_set_active_pane(src_w, dst_wp);
 127                         window_set_active_pane(dst_w, src_wp);
 128                 } else {
 129                         tmp_wp = dst_wp;
 130                         if (!window_pane_visible(tmp_wp))
 131                                 tmp_wp = src_wp;
 132                         window_set_active_pane(src_w, tmp_wp);
 133                 }
 134         } else {
 135                 if (src_w->active == src_wp)
 136                         window_set_active_pane(src_w, dst_wp);
 137                 if (dst_w->active == dst_wp)
 138                         window_set_active_pane(dst_w, src_wp);
 139         }
 140         server_redraw_window(src_w);
 141         server_redraw_window(dst_w);
 142
 143         return (0);
 144 }