cmd-split-window.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 <errno.h>
  22 #include <fcntl.h>
  23 #include <paths.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <unistd.h>
  27
  28 #include "tmux.h"
  29
  30 /*
  31  * Split a window (add a new pane).
  32  */
  33
  34 #define SPLIT_WINDOW_TEMPLATE "#{session_name}:#{window_index}.#{pane_index}"
  35
  36 static enum cmd_retval  cmd_split_window_exec(struct cmd *,
  37                             struct cmdq_item *);
  38
  39 const struct cmd_entry cmd_split_window_entry = {
  40         .name = "split-window",
  41         .alias = "splitw",
  42
  43         .args = { "bc:de:fF:hIl:p:Pt:vZ", 0, -1, NULL },
  44         .usage = "[-bdefhIPvZ] [-c start-directory] [-e environment] "
  45                  "[-F format] [-l size] " CMD_TARGET_PANE_USAGE
  46                  "[shell-command]",
  47
  48         .target = { 't', CMD_FIND_PANE, 0 },
  49
  50         .flags = 0,
  51         .exec = cmd_split_window_exec
  52 };
  53
  54 static enum cmd_retval
  55 cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
  56 {
  57         struct args             *args = cmd_get_args(self);
  58         struct cmd_find_state   *current = cmdq_get_current(item);
  59         struct cmd_find_state   *target = cmdq_get_target(item);
  60         struct spawn_context     sc = { 0 };
  61         struct client           *tc = cmdq_get_target_client(item);
  62         struct session          *s = target->s;
  63         struct winlink          *wl = target->wl;
  64         struct window           *w = wl->window;
  65         struct window_pane      *wp = target->wp, *new_wp;
  66         enum layout_type         type;
  67         struct layout_cell      *lc;
  68         struct cmd_find_state    fs;
  69         int                      size, percentage, flags, input;
  70         const char              *template, *errstr, *p;
  71         char                    *cause, *cp, *copy;
  72         size_t                   plen;
  73         struct args_value       *av;
  74         u_int                    count = args_count(args);
  75
  76         if (args_has(args, 'h'))
  77                 type = LAYOUT_LEFTRIGHT;
  78         else
  79                 type = LAYOUT_TOPBOTTOM;
  80         if ((p = args_get(args, 'l')) != NULL) {
  81                 plen = strlen(p);
  82                 if (p[plen - 1] == '%') {
  83                         copy = xstrdup(p);
  84                         copy[plen - 1] = '\0';
  85                         percentage = strtonum(copy, 0, INT_MAX, &errstr);
  86                         free(copy);
  87                         if (errstr != NULL) {
  88                                 cmdq_error(item, "percentage %s", errstr);
  89                                 return (CMD_RETURN_ERROR);
  90                         }
  91                         if (args_has(args, 'f')) {
  92                                 if (type == LAYOUT_TOPBOTTOM)
  93                                         size = (w->sy * percentage) / 100;
  94                                 else
  95                                         size = (w->sx * percentage) / 100;
  96                         } else {
  97                                 if (type == LAYOUT_TOPBOTTOM)
  98                                         size = (wp->sy * percentage) / 100;
  99                                 else
 100                                         size = (wp->sx * percentage) / 100;
 101                         }
 102                 } else {
 103                         size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
 104                         if (cause != NULL) {
 105                                 cmdq_error(item, "lines %s", cause);
 106                                 free(cause);
 107                                 return (CMD_RETURN_ERROR);
 108                         }
 109                 }
 110         } else if (args_has(args, 'p')) {
 111                 percentage = args_strtonum(args, 'p', 0, INT_MAX, &cause);
 112                 if (cause != NULL) {
 113                         cmdq_error(item, "create pane failed: -p %s", cause);
 114                         free(cause);
 115                         return (CMD_RETURN_ERROR);
 116                 }
 117                 if (args_has(args, 'f')) {
 118                         if (type == LAYOUT_TOPBOTTOM)
 119                                 size = (w->sy * percentage) / 100;
 120                         else
 121                                 size = (w->sx * percentage) / 100;
 122                 } else {
 123                         if (type == LAYOUT_TOPBOTTOM)
 124                                 size = (wp->sy * percentage) / 100;
 125                         else
 126                                 size = (wp->sx * percentage) / 100;
 127                 }
 128         } else
 129                 size = -1;
 130
 131         window_push_zoom(wp->window, 1, args_has(args, 'Z'));
 132         input = (args_has(args, 'I') && count == 0);
 133
 134         flags = 0;
 135         if (args_has(args, 'b'))
 136                 flags |= SPAWN_BEFORE;
 137         if (args_has(args, 'f'))
 138                 flags |= SPAWN_FULLSIZE;
 139         if (input || (count == 1 && *args_string(args, 0) == '\0'))
 140                 flags |= SPAWN_EMPTY;
 141
 142         lc = layout_split_pane(wp, type, size, flags);
 143         if (lc == NULL) {
 144                 cmdq_error(item, "no space for new pane");
 145                 return (CMD_RETURN_ERROR);
 146         }
 147
 148         sc.item = item;
 149         sc.s = s;
 150         sc.wl = wl;
 151
 152         sc.wp0 = wp;
 153         sc.lc = lc;
 154
 155         args_to_vector(args, &sc.argc, &sc.argv);
 156         sc.environ = environ_create();
 157
 158         av = args_first_value(args, 'e');
 159         while (av != NULL) {
 160                 environ_put(sc.environ, av->string, 0);
 161                 av = args_next_value(av);
 162         }
 163
 164         sc.idx = -1;
 165         sc.cwd = args_get(args, 'c');
 166
 167         sc.flags = flags;
 168         if (args_has(args, 'd'))
 169                 sc.flags |= SPAWN_DETACHED;
 170         if (args_has(args, 'Z'))
 171                 sc.flags |= SPAWN_ZOOM;
 172
 173         if ((new_wp = spawn_pane(&sc, &cause)) == NULL) {
 174                 cmdq_error(item, "create pane failed: %s", cause);
 175                 free(cause);
 176                 if (sc.argv != NULL)
 177                         cmd_free_argv(sc.argc, sc.argv);
 178                 environ_free(sc.environ);
 179                 return (CMD_RETURN_ERROR);
 180         }
 181         if (input) {
 182                 switch (window_pane_start_input(new_wp, item, &cause)) {
 183                 case -1:
 184                         server_client_remove_pane(new_wp);
 185                         layout_close_pane(new_wp);
 186                         window_remove_pane(wp->window, new_wp);
 187                         cmdq_error(item, "%s", cause);
 188                         free(cause);
 189                         if (sc.argv != NULL)
 190                                 cmd_free_argv(sc.argc, sc.argv);
 191                         environ_free(sc.environ);
 192                         return (CMD_RETURN_ERROR);
 193                 case 1:
 194                         input = 0;
 195                         break;
 196                 }
 197         }
 198         if (!args_has(args, 'd'))
 199                 cmd_find_from_winlink_pane(current, wl, new_wp, 0);
 200         window_pop_zoom(wp->window);
 201         server_redraw_window(wp->window);
 202         server_status_session(s);
 203
 204         if (args_has(args, 'P')) {
 205                 if ((template = args_get(args, 'F')) == NULL)
 206                         template = SPLIT_WINDOW_TEMPLATE;
 207                 cp = format_single(item, template, tc, s, wl, new_wp);
 208                 cmdq_print(item, "%s", cp);
 209                 free(cp);
 210         }
 211
 212         cmd_find_from_winlink_pane(&fs, wl, new_wp, 0);
 213         cmdq_insert_hook(s, item, &fs, "after-split-window");
 214
 215         if (sc.argv != NULL)
 216                 cmd_free_argv(sc.argc, sc.argv);
 217         environ_free(sc.environ);
 218         if (input)
 219                 return (CMD_RETURN_WAIT);
 220         return (CMD_RETURN_NORMAL);
 221 }