1 /* $OpenBSD: cmd-split-window.c,v 1.69 2016/06/06 07:24:31 nicm Exp $ */ 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 enum cmd_retval cmd_split_window_exec(struct cmd *, struct cmd_q *); 37 38 const struct cmd_entry cmd_split_window_entry = { 39 .name = "split-window", 40 .alias = "splitw", 41 42 .args = { "bc:dF:l:hp:Pt:v", 0, -1 }, 43 .usage = "[-bdhvP] [-c start-directory] [-F format] " 44 "[-p percentage|-l size] " CMD_TARGET_PANE_USAGE " [command]", 45 46 .tflag = CMD_PANE, 47 48 .flags = 0, 49 .exec = cmd_split_window_exec 50 }; 51 52 enum cmd_retval 53 cmd_split_window_exec(struct cmd *self, struct cmd_q *cmdq) 54 { 55 struct args *args = self->args; 56 struct session *s = cmdq->state.tflag.s; 57 struct winlink *wl = cmdq->state.tflag.wl; 58 struct window *w = wl->window; 59 struct window_pane *wp = cmdq->state.tflag.wp, *new_wp = NULL; 60 struct environ *env; 61 const char *cmd, *path, *shell, *template, *cwd, *to_free; 62 char **argv, *cause, *new_cause, *cp; 63 u_int hlimit; 64 int argc, size, percentage; 65 enum layout_type type; 66 struct layout_cell *lc; 67 struct format_tree *ft; 68 struct environ_entry *envent; 69 70 server_unzoom_window(w); 71 72 env = environ_create(); 73 environ_copy(global_environ, env); 74 environ_copy(s->environ, env); 75 server_fill_environ(s, env); 76 77 if (args->argc == 0) { 78 cmd = options_get_string(s->options, "default-command"); 79 if (cmd != NULL && *cmd != '\0') { 80 argc = 1; 81 argv = (char **)&cmd; 82 } else { 83 argc = 0; 84 argv = NULL; 85 } 86 } else { 87 argc = args->argc; 88 argv = args->argv; 89 } 90 91 to_free = NULL; 92 if (args_has(args, 'c')) { 93 ft = format_create(cmdq, 0); 94 format_defaults(ft, cmdq->state.c, s, NULL, NULL); 95 to_free = cwd = format_expand(ft, args_get(args, 'c')); 96 format_free(ft); 97 } else if (cmdq->client != NULL && cmdq->client->session == NULL) 98 cwd = cmdq->client->cwd; 99 else 100 cwd = s->cwd; 101 102 type = LAYOUT_TOPBOTTOM; 103 if (args_has(args, 'h')) 104 type = LAYOUT_LEFTRIGHT; 105 106 size = -1; 107 if (args_has(args, 'l')) { 108 size = args_strtonum(args, 'l', 0, INT_MAX, &cause); 109 if (cause != NULL) { 110 xasprintf(&new_cause, "size %s", cause); 111 free(cause); 112 cause = new_cause; 113 goto error; 114 } 115 } else if (args_has(args, 'p')) { 116 percentage = args_strtonum(args, 'p', 0, INT_MAX, &cause); 117 if (cause != NULL) { 118 xasprintf(&new_cause, "percentage %s", cause); 119 free(cause); 120 cause = new_cause; 121 goto error; 122 } 123 if (type == LAYOUT_TOPBOTTOM) 124 size = (wp->sy * percentage) / 100; 125 else 126 size = (wp->sx * percentage) / 100; 127 } 128 hlimit = options_get_number(s->options, "history-limit"); 129 130 shell = options_get_string(s->options, "default-shell"); 131 if (*shell == '\0' || areshell(shell)) 132 shell = _PATH_BSHELL; 133 134 lc = layout_split_pane(wp, type, size, args_has(args, 'b')); 135 if (lc == NULL) { 136 cause = xstrdup("pane too small"); 137 goto error; 138 } 139 new_wp = window_add_pane(w, wp, hlimit); 140 layout_assign_pane(lc, new_wp); 141 142 path = NULL; 143 if (cmdq->client != NULL && cmdq->client->session == NULL) 144 envent = environ_find(cmdq->client->environ, "PATH"); 145 else 146 envent = environ_find(s->environ, "PATH"); 147 if (envent != NULL) 148 path = envent->value; 149 150 if (window_pane_spawn(new_wp, argc, argv, path, shell, cwd, env, 151 s->tio, &cause) != 0) 152 goto error; 153 154 server_redraw_window(w); 155 156 if (!args_has(args, 'd')) { 157 window_set_active_pane(w, new_wp); 158 session_select(s, wl->idx); 159 server_redraw_session(s); 160 } else 161 server_status_session(s); 162 163 environ_free(env); 164 165 if (args_has(args, 'P')) { 166 if ((template = args_get(args, 'F')) == NULL) 167 template = SPLIT_WINDOW_TEMPLATE; 168 169 ft = format_create(cmdq, 0); 170 format_defaults(ft, cmdq->state.c, s, wl, new_wp); 171 172 cp = format_expand(ft, template); 173 cmdq_print(cmdq, "%s", cp); 174 free(cp); 175 176 format_free(ft); 177 } 178 notify_window_layout_changed(w); 179 180 if (to_free != NULL) 181 free((void *)to_free); 182 return (CMD_RETURN_NORMAL); 183 184 error: 185 environ_free(env); 186 if (new_wp != NULL) { 187 layout_close_pane(new_wp); 188 window_remove_pane(w, new_wp); 189 } 190 cmdq_error(cmdq, "create pane failed: %s", cause); 191 free(cause); 192 193 if (to_free != NULL) 194 free((void *)to_free); 195 return (CMD_RETURN_ERROR); 196 } 197