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 <stdlib.h> 24 #include <string.h> 25 #include <unistd.h> 26 27 #include "tmux.h" 28 29 /* 30 * Split a window (add a new pane). 31 */ 32 33 #define SPLIT_WINDOW_TEMPLATE "#{session_name}:#{window_index}.#{pane_index}" 34 35 static enum cmd_retval cmd_split_window_exec(struct cmd *, 36 struct cmdq_item *); 37 38 const struct cmd_entry cmd_split_window_entry = { 39 .name = "split-window", 40 .alias = "splitw", 41 42 .args = { "bc:dfF:l:hp:Pt:v", 0, -1 }, 43 .usage = "[-bdfhvP] [-c start-directory] [-F format] " 44 "[-p percentage|-l size] " CMD_TARGET_PANE_USAGE " [command]", 45 46 .target = { 't', CMD_FIND_PANE, 0 }, 47 48 .flags = 0, 49 .exec = cmd_split_window_exec 50 }; 51 52 static enum cmd_retval 53 cmd_split_window_exec(struct cmd *self, struct cmdq_item *item) 54 { 55 struct cmd_find_state *current = &item->shared->current; 56 struct args *args = self->args; 57 struct client *c = cmd_find_client(item, NULL, 1); 58 struct session *s = item->target.s; 59 struct winlink *wl = item->target.wl; 60 struct window *w = wl->window; 61 struct window_pane *wp = item->target.wp, *new_wp = NULL; 62 struct environ *env; 63 const char *cmd, *path, *shell, *template, *tmp; 64 char **argv, *cause, *new_cause, *cp, *cwd; 65 u_int hlimit; 66 int argc, size, percentage, before; 67 enum layout_type type; 68 struct layout_cell *lc; 69 struct environ_entry *envent; 70 struct cmd_find_state fs; 71 72 server_unzoom_window(w); 73 74 if (args->argc == 0) { 75 cmd = options_get_string(s->options, "default-command"); 76 if (cmd != NULL && *cmd != '\0') { 77 argc = 1; 78 argv = __UNCONST(&cmd); 79 } else { 80 argc = 0; 81 argv = NULL; 82 } 83 } else { 84 argc = args->argc; 85 argv = args->argv; 86 } 87 88 if ((tmp = args_get(args, 'c')) != NULL) 89 cwd = format_single(item, tmp, c, s, NULL, NULL); 90 else 91 cwd = xstrdup(server_client_get_cwd(item->client, s)); 92 93 type = LAYOUT_TOPBOTTOM; 94 if (args_has(args, 'h')) 95 type = LAYOUT_LEFTRIGHT; 96 before = args_has(args, 'b'); 97 98 size = -1; 99 if (args_has(args, 'l')) { 100 size = args_strtonum(args, 'l', 0, INT_MAX, &cause); 101 if (cause != NULL) { 102 xasprintf(&new_cause, "size %s", cause); 103 free(cause); 104 cause = new_cause; 105 goto error; 106 } 107 } else if (args_has(args, 'p')) { 108 percentage = args_strtonum(args, 'p', 0, INT_MAX, &cause); 109 if (cause != NULL) { 110 xasprintf(&new_cause, "percentage %s", cause); 111 free(cause); 112 cause = new_cause; 113 goto error; 114 } 115 if (type == LAYOUT_TOPBOTTOM) 116 size = (wp->sy * percentage) / 100; 117 else 118 size = (wp->sx * percentage) / 100; 119 } 120 hlimit = options_get_number(s->options, "history-limit"); 121 122 shell = options_get_string(s->options, "default-shell"); 123 if (*shell == '\0' || areshell(shell)) 124 shell = _PATH_BSHELL; 125 126 lc = layout_split_pane(wp, type, size, before, args_has(args, 'f')); 127 if (lc == NULL) { 128 cause = xstrdup("pane too small"); 129 goto error; 130 } 131 new_wp = window_add_pane(w, wp, before, args_has(args, 'f'), hlimit); 132 layout_make_leaf(lc, new_wp); 133 134 path = NULL; 135 if (item->client != NULL && item->client->session == NULL) 136 envent = environ_find(item->client->environ, "PATH"); 137 else 138 envent = environ_find(s->environ, "PATH"); 139 if (envent != NULL) 140 path = envent->value; 141 142 env = environ_for_session(s, 0); 143 if (window_pane_spawn(new_wp, argc, argv, path, shell, cwd, env, 144 s->tio, &cause) != 0) { 145 environ_free(env); 146 goto error; 147 } 148 environ_free(env); 149 150 layout_fix_panes(w, w->sx, w->sy); 151 server_redraw_window(w); 152 153 if (!args_has(args, 'd')) { 154 window_set_active_pane(w, new_wp); 155 session_select(s, wl->idx); 156 cmd_find_from_session(current, s, 0); 157 server_redraw_session(s); 158 } else 159 server_status_session(s); 160 161 if (args_has(args, 'P')) { 162 if ((template = args_get(args, 'F')) == NULL) 163 template = SPLIT_WINDOW_TEMPLATE; 164 cp = format_single(item, template, c, s, wl, new_wp); 165 cmdq_print(item, "%s", cp); 166 free(cp); 167 } 168 notify_window("window-layout-changed", w); 169 170 cmd_find_from_winlink_pane(&fs, wl, new_wp, 0); 171 hooks_insert(s->hooks, item, &fs, "after-split-window"); 172 173 free(cwd); 174 return (CMD_RETURN_NORMAL); 175 176 error: 177 if (new_wp != NULL) { 178 layout_close_pane(new_wp); 179 window_remove_pane(w, new_wp); 180 } 181 cmdq_error(item, "create pane failed: %s", cause); 182 free(cause); 183 184 free(cwd); 185 return (CMD_RETURN_ERROR); 186 } 187