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_key_binding(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         "dDs:t:U", 0, 0,
  35         "[-dDU] " CMD_SRCDST_PANE_USAGE,
  36         0,
  37         cmd_swap_pane_key_binding,
  38         NULL,
  39         cmd_swap_pane_exec
  40 };
  41
  42 void
  43 cmd_swap_pane_key_binding(struct cmd *self, int key)
  44 {
  45         self->args = args_create(0);
  46         if (key == '{')
  47                 args_set(self->args, 'U', NULL);
  48         else if (key == '}')
  49                 args_set(self->args, 'D', NULL);
  50 }
  51
  52 int
  53 cmd_swap_pane_exec(struct cmd *self, struct cmd_ctx *ctx)
  54 {
  55         struct args             *args = self->args;
  56         struct winlink          *src_wl, *dst_wl;
  57         struct window           *src_w, *dst_w;
  58         struct window_pane      *tmp_wp, *src_wp, *dst_wp;
  59         struct layout_cell      *src_lc, *dst_lc;
  60         u_int                    sx, sy, xoff, yoff;
  61
  62         dst_wl = cmd_find_pane(ctx, args_get(args, 't'), NULL, &dst_wp);
  63         if (dst_wl == NULL)
  64                 return (-1);
  65         dst_w = dst_wl->window;
  66
  67         if (!args_has(args, 's')) {
  68                 src_w = dst_w;
  69                 if (args_has(self->args, 'D')) {
  70                         src_wp = TAILQ_NEXT(dst_wp, entry);
  71                         if (src_wp == NULL)
  72                                 src_wp = TAILQ_FIRST(&dst_w->panes);
  73                 } else if (args_has(self->args, 'U')) {
  74                         src_wp = TAILQ_PREV(dst_wp, window_panes, entry);
  75                         if (src_wp == NULL)
  76                                 src_wp = TAILQ_LAST(&dst_w->panes, window_panes);
  77                 } else
  78                         return (0);
  79         } else {
  80                 src_wl = cmd_find_pane(ctx, args_get(args, 's'), NULL, &src_wp);
  81                 if (src_wl == NULL)
  82                         return (-1);
  83                 src_w = src_wl->window;
  84         }
  85
  86         if (src_wp == dst_wp)
  87                 return (0);
  88
  89         tmp_wp = TAILQ_PREV(dst_wp, window_panes, entry);
  90         TAILQ_REMOVE(&dst_w->panes, dst_wp, entry);
  91         TAILQ_REPLACE(&src_w->panes, src_wp, dst_wp, entry);
  92         if (tmp_wp == src_wp)
  93                 tmp_wp = dst_wp;
  94         if (tmp_wp == NULL)
  95                 TAILQ_INSERT_HEAD(&dst_w->panes, src_wp, entry);
  96         else
  97                 TAILQ_INSERT_AFTER(&dst_w->panes, tmp_wp, src_wp, entry);
  98
  99         src_lc = src_wp->layout_cell;
 100         dst_lc = dst_wp->layout_cell;
 101         src_lc->wp = dst_wp;
 102         dst_wp->layout_cell = src_lc;
 103         dst_lc->wp = src_wp;
 104         src_wp->layout_cell = dst_lc;
 105
 106         src_wp->window = dst_w;
 107         dst_wp->window = src_w;
 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(self->args, 'd')) {
 117                 if (src_w != dst_w) {
 118                         window_set_active_pane(src_w, dst_wp);
 119                         window_set_active_pane(dst_w, src_wp);
 120                 } else {
 121                         tmp_wp = dst_wp;
 122                         if (!window_pane_visible(tmp_wp))
 123                                 tmp_wp = src_wp;
 124                         window_set_active_pane(src_w, tmp_wp);
 125                 }
 126         } else {
 127                 if (src_w->active == src_wp)
 128                         window_set_active_pane(src_w, dst_wp);
 129                 if (dst_w->active == dst_wp)
 130                         window_set_active_pane(dst_w, src_wp);
 131         }
 132         server_redraw_window(src_w);
 133         server_redraw_window(dst_w);
 134
 135         return (0);
 136 }