cmd-join-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 <paths.h>
  22 #include <stdlib.h>
  23 #include <unistd.h>
  24
  25 #include "tmux.h"
  26
  27 /*
  28  * Join a pane into another (like split/swap/kill).
  29  */
  30
  31 int     cmd_join_pane_parse(struct cmd *, int, char **, char **);
  32 int     cmd_join_pane_exec(struct cmd *, struct cmd_ctx *);
  33 void    cmd_join_pane_free(struct cmd *);
  34 void    cmd_join_pane_init(struct cmd *, int);
  35 size_t  cmd_join_pane_print(struct cmd *, char *, size_t);
  36
  37 struct cmd_join_pane_data {
  38         char    *src;
  39         char    *dst;
  40         int      flag_detached;
  41         int      flag_horizontal;
  42         int      percentage;
  43         int      size;
  44 };
  45
  46 const struct cmd_entry cmd_join_pane_entry = {
  47         "join-pane", "joinp",
  48         "[-dhv] [-p percentage|-l size] [-s src-pane] [-t dst-pane]",
  49         0, "",
  50         cmd_join_pane_init,
  51         cmd_join_pane_parse,
  52         cmd_join_pane_exec,
  53         cmd_join_pane_free,
  54         cmd_join_pane_print
  55 };
  56
  57 void
  58 cmd_join_pane_init(struct cmd *self, int key)
  59 {
  60         struct cmd_join_pane_data        *data;
  61
  62         self->data = data = xmalloc(sizeof *data);
  63         data->src = NULL;
  64         data->dst = NULL;
  65         data->flag_detached = 0;
  66         data->flag_horizontal = 0;
  67         data->percentage = -1;
  68         data->size = -1;
  69
  70         switch (key) {
  71         case '%':
  72                 data->flag_horizontal = 1;
  73                 break;
  74         case '"':
  75                 data->flag_horizontal = 0;
  76                 break;
  77         }
  78 }
  79
  80 int
  81 cmd_join_pane_parse(struct cmd *self, int argc, char **argv, char **cause)
  82 {
  83         struct cmd_join_pane_data       *data;
  84         int                              opt;
  85         const char                      *errstr;
  86
  87         self->entry->init(self, KEYC_NONE);
  88         data = self->data;
  89
  90         while ((opt = getopt(argc, argv, "dhl:p:s:t:v")) != -1) {
  91                 switch (opt) {
  92                 case 'd':
  93                         data->flag_detached = 1;
  94                         break;
  95                 case 'h':
  96                         data->flag_horizontal = 1;
  97                         break;
  98                 case 's':
  99                         if (data->src == NULL)
 100                                 data->src = xstrdup(optarg);
 101                         break;
 102                 case 't':
 103                         if (data->dst == NULL)
 104                                 data->dst = xstrdup(optarg);
 105                         break;
 106                 case 'l':
 107                         if (data->percentage != -1 || data->size != -1)
 108                                 break;
 109                         data->size = strtonum(optarg, 1, INT_MAX, &errstr);
 110                         if (errstr != NULL) {
 111                                 xasprintf(cause, "size %s", errstr);
 112                                 goto error;
 113                         }
 114                         break;
 115                 case 'p':
 116                         if (data->size != -1 || data->percentage != -1)
 117                                 break;
 118                         data->percentage = strtonum(optarg, 1, 100, &errstr);
 119                         if (errstr != NULL) {
 120                                 xasprintf(cause, "percentage %s", errstr);
 121                                 goto error;
 122                         }
 123                         break;
 124                 case 'v':
 125                         data->flag_horizontal = 0;
 126                         break;
 127                 default:
 128                         goto usage;
 129                 }
 130         }
 131         argc -= optind;
 132         argv += optind;
 133         if (argc != 0)
 134                 goto usage;
 135
 136         return (0);
 137
 138 usage:
 139         xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
 140
 141 error:
 142         self->entry->free(self);
 143         return (-1);
 144 }
 145
 146 int
 147 cmd_join_pane_exec(struct cmd *self, struct cmd_ctx *ctx)
 148 {
 149         struct cmd_join_pane_data       *data = self->data;
 150         struct session                  *dst_s;
 151         struct winlink                  *src_wl, *dst_wl;
 152         struct window                   *src_w, *dst_w;
 153         struct window_pane              *src_wp, *dst_wp;
 154         int                              size, dst_idx;
 155         enum layout_type                 type;
 156         struct layout_cell              *lc;
 157
 158         if ((dst_wl = cmd_find_pane(ctx, data->dst, &dst_s, &dst_wp)) == NULL)
 159                 return (-1);
 160         dst_w = dst_wl->window;
 161         dst_idx = dst_wl->idx;
 162
 163         if ((src_wl = cmd_find_pane(ctx, data->src, NULL, &src_wp)) == NULL)
 164                 return (-1);
 165         src_w = src_wl->window;
 166
 167         if (src_w == dst_w) {
 168                 ctx->error(ctx, "can't join a pane to its own window");
 169                 return (-1);
 170         }
 171
 172         type = LAYOUT_TOPBOTTOM;
 173         if (data->flag_horizontal)
 174                 type = LAYOUT_LEFTRIGHT;
 175
 176         size = -1;
 177         if (data->size != -1)
 178                 size = data->size;
 179         else if (data->percentage != -1) {
 180                 if (type == LAYOUT_TOPBOTTOM)
 181                         size = (dst_wp->sy * data->percentage) / 100;
 182                 else
 183                         size = (dst_wp->sx * data->percentage) / 100;
 184         }
 185
 186         if ((lc = layout_split_pane(dst_wp, type, size)) == NULL) {
 187                 ctx->error(ctx, "create pane failed: pane too small");
 188                 return (-1);
 189         }
 190
 191         layout_close_pane(src_wp);
 192
 193         if (src_w->active == src_wp) {
 194                 src_w->active = TAILQ_PREV(src_wp, window_panes, entry);
 195                 if (src_w->active == NULL)
 196                         src_w->active = TAILQ_NEXT(src_wp, entry);
 197         }
 198         TAILQ_REMOVE(&src_w->panes, src_wp, entry);
 199
 200         if (window_count_panes(src_w) == 0)
 201                 server_kill_window(src_w);
 202
 203         src_wp->window = dst_w;
 204         TAILQ_INSERT_AFTER(&dst_w->panes, dst_wp, src_wp, entry);
 205         layout_assign_pane(lc, src_wp);
 206
 207         recalculate_sizes();
 208
 209         server_redraw_window(src_w);
 210         server_redraw_window(dst_w);
 211
 212         if (!data->flag_detached) {
 213                 window_set_active_pane(dst_w, src_wp);
 214                 session_select(dst_s, dst_idx);
 215                 server_redraw_session(dst_s);
 216         } else
 217                 server_status_session(dst_s);
 218
 219         return (0);
 220 }
 221
 222 void
 223 cmd_join_pane_free(struct cmd *self)
 224 {
 225         struct cmd_join_pane_data       *data = self->data;
 226
 227         if (data->src != NULL)
 228                 xfree(data->src);
 229         if (data->dst != NULL)
 230                 xfree(data->dst);
 231         xfree(data);
 232 }
 233
 234 size_t
 235 cmd_join_pane_print(struct cmd *self, char *buf, size_t len)
 236 {
 237         struct cmd_join_pane_data       *data = self->data;
 238         size_t                           off = 0;
 239
 240         off += xsnprintf(buf, len, "%s", self->entry->name);
 241         if (data == NULL)
 242                 return (off);
 243         if (off < len && data->flag_detached)
 244                 off += xsnprintf(buf + off, len - off, " -d");
 245         if (off < len && data->flag_horizontal)
 246                 off += xsnprintf(buf + off, len - off, " -h");
 247         if (off < len && data->size > 0)
 248                 off += xsnprintf(buf + off, len - off, " -l %d", data->size);
 249         if (off < len && data->percentage > 0) {
 250                 off += xsnprintf(
 251                     buf + off, len - off, " -p %d", data->percentage);
 252         }
 253         if (off < len && data->src != NULL)
 254                 off += cmd_prarg(buf + off, len - off, " -s ", data->src);
 255         if (off < len && data->dst != NULL)
 256                 off += cmd_prarg(buf + off, len - off, " -t ", data->dst);
 257         return (off);
 258 }