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 enum cmd_retval cmd_split_window_exec(struct cmd *, struct cmd_q *); 36 37 const struct cmd_entry cmd_split_window_entry = { 38 .name = "split-window", 39 .alias = "splitw", 40 41 .args = { "bc:dF:l:hp:Pt:v", 0, -1 }, 42 .usage = "[-bdhvP] [-c start-directory] [-F format] " 43 "[-p percentage|-l size] " CMD_TARGET_PANE_USAGE " [command]", 44 45 .tflag = CMD_PANE, 46 47 .flags = 0, 48 .exec = cmd_split_window_exec 49 }; 50 51 enum cmd_retval 52 cmd_split_window_exec(struct cmd *self, struct cmd_q *cmdq) 53 { 54 struct args *args = self->args; 55 struct session *s = cmdq->state.tflag.s; 56 struct winlink *wl = cmdq->state.tflag.wl; 57 struct window *w = wl->window; 58 struct window_pane *wp = cmdq->state.tflag.wp, *new_wp = NULL; 59 struct environ *env; 60 const char *cmd, *path, *shell, *template, *cwd, *to_free; 61 char **argv, *cause, *new_cause, *cp; 62 u_int hlimit; 63 int argc, size, percentage; 64 enum layout_type type; 65 struct layout_cell *lc; 66 struct format_tree *ft; 67 struct environ_entry *envent; 68 69 server_unzoom_window(w); 70 71 env = environ_create(); 72 environ_copy(global_environ, env); 73 environ_copy(s->environ, env); 74 server_fill_environ(s, env); 75 76 if (args->argc == 0) { 77 cmd = options_get_string(s->options, "default-command"); 78 if (cmd != NULL && *cmd != '\0') { 79 argc = 1; 80 argv = __UNCONST(&cmd); 81 } else { 82 argc = 0; 83 argv = NULL; 84 } 85 } else { 86 argc = args->argc; 87 argv = args->argv; 88 } 89 90 to_free = NULL; 91 if (args_has(args, 'c')) { 92 ft = format_create(cmdq, 0); 93 format_defaults(ft, cmdq->state.c, s, NULL, NULL); 94 to_free = cwd = format_expand(ft, args_get(args, 'c')); 95 format_free(ft); 96 } else if (cmdq->client != NULL && cmdq->client->session == NULL) 97 cwd = cmdq->client->cwd; 98 else 99 cwd = s->cwd; 100 101 type = LAYOUT_TOPBOTTOM; 102 if (args_has(args, 'h')) 103 type = LAYOUT_LEFTRIGHT; 104 105 size = -1; 106 if (args_has(args, 'l')) { 107 size = args_strtonum(args, 'l', 0, INT_MAX, &cause); 108 if (cause != NULL) { 109 xasprintf(&new_cause, "size %s", cause); 110 free(cause); 111 cause = new_cause; 112 goto error; 113 } 114 } else if (args_has(args, 'p')) { 115 percentage = args_strtonum(args, 'p', 0, INT_MAX, &cause); 116 if (cause != NULL) { 117 xasprintf(&new_cause, "percentage %s", cause); 118 free(cause); 119 cause = new_cause; 120 goto error; 121 } 122 if (type == LAYOUT_TOPBOTTOM) 123 size = (wp->sy * percentage) / 100; 124 else 125 size = (wp->sx * percentage) / 100; 126 } 127 hlimit = options_get_number(s->options, "history-limit"); 128 129 shell = options_get_string(s->options, "default-shell"); 130 if (*shell == '\0' || areshell(shell)) 131 shell = _PATH_BSHELL; 132 133 lc = layout_split_pane(wp, type, size, args_has(args, 'b')); 134 if (lc == NULL) { 135 cause = xstrdup("pane too small"); 136 goto error; 137 } 138 new_wp = window_add_pane(w, hlimit); 139 layout_assign_pane(lc, new_wp); 140 141 path = NULL; 142 if (cmdq->client != NULL && cmdq->client->session == NULL) 143 envent = environ_find(cmdq->client->environ, "PATH"); 144 else 145 envent = environ_find(s->environ, "PATH"); 146 if (envent != NULL) 147 path = envent->value; 148 149 if (window_pane_spawn(new_wp, argc, argv, path, shell, cwd, env, 150 s->tio, &cause) != 0) 151 goto error; 152 153 server_redraw_window(w); 154 155 if (!args_has(args, 'd')) { 156 window_set_active_pane(w, new_wp); 157 session_select(s, wl->idx); 158 server_redraw_session(s); 159 } else 160 server_status_session(s); 161 162 environ_free(env); 163 164 if (args_has(args, 'P')) { 165 if ((template = args_get(args, 'F')) == NULL) 166 template = SPLIT_WINDOW_TEMPLATE; 167 168 ft = format_create(cmdq, 0); 169 format_defaults(ft, cmdq->state.c, s, wl, new_wp); 170 171 cp = format_expand(ft, template); 172 cmdq_print(cmdq, "%s", cp); 173 free(cp); 174 175 format_free(ft); 176 } 177 notify_window_layout_changed(w); 178 179 if (to_free != NULL) 180 free(__UNCONST(to_free)); 181 return (CMD_RETURN_NORMAL); 182 183 error: 184 environ_free(env); 185 if (new_wp != NULL) { 186 layout_close_pane(new_wp); 187 window_remove_pane(w, new_wp); 188 } 189 cmdq_error(cmdq, "create pane failed: %s", cause); 190 free(cause); 191 192 if (to_free != NULL) 193 free(__UNCONST(to_free)); 194 return (CMD_RETURN_ERROR); 195 } 196