1 /* $OpenBSD: cmd-split-window.c,v 1.48 2013/11/22 20:58:36 nicm Exp $ */ 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 <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 void cmd_split_window_key_binding(struct cmd *, int); 35 enum cmd_retval cmd_split_window_exec(struct cmd *, struct cmd_q *); 36 37 const struct cmd_entry cmd_split_window_entry = { 38 "split-window", "splitw", 39 "c:dF:l:hp:Pt:v", 0, 1, 40 "[-dhvP] [-c start-directory] [-F format] [-p percentage|-l size] " 41 CMD_TARGET_PANE_USAGE " [command]", 42 0, 43 cmd_split_window_key_binding, 44 cmd_split_window_exec 45 }; 46 47 void 48 cmd_split_window_key_binding(struct cmd *self, int key) 49 { 50 self->args = args_create(0); 51 if (key == '%') 52 args_set(self->args, 'h', NULL); 53 } 54 55 enum cmd_retval 56 cmd_split_window_exec(struct cmd *self, struct cmd_q *cmdq) 57 { 58 struct args *args = self->args; 59 struct session *s; 60 struct winlink *wl; 61 struct window *w; 62 struct window_pane *wp, *new_wp = NULL; 63 struct environ env; 64 const char *cmd, *shell, *template; 65 char *cause, *new_cause, *cp; 66 u_int hlimit; 67 int size, percentage, cwd, fd = -1; 68 enum layout_type type; 69 struct layout_cell *lc; 70 struct client *c; 71 struct format_tree *ft; 72 73 if ((wl = cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp)) == NULL) 74 return (CMD_RETURN_ERROR); 75 w = wl->window; 76 server_unzoom_window(w); 77 78 environ_init(&env); 79 environ_copy(&global_environ, &env); 80 environ_copy(&s->environ, &env); 81 server_fill_environ(s, &env); 82 83 if (args->argc == 0) 84 cmd = options_get_string(&s->options, "default-command"); 85 else 86 cmd = args->argv[0]; 87 88 if (args_has(args, 'c')) { 89 ft = format_create(); 90 if ((c = cmd_find_client(cmdq, NULL, 1)) != NULL) 91 format_client(ft, c); 92 format_session(ft, s); 93 format_winlink(ft, s, s->curw); 94 format_window_pane(ft, s->curw->window->active); 95 cp = format_expand(ft, args_get(args, 'c')); 96 format_free(ft); 97 98 if (cp != NULL && *cp != '\0') { 99 fd = open(cp, O_RDONLY|O_DIRECTORY); 100 free(cp); 101 if (fd == -1) { 102 cmdq_error(cmdq, "bad working directory: %s", 103 strerror(errno)); 104 return (CMD_RETURN_ERROR); 105 } 106 } else if (cp != NULL) 107 free(cp); 108 cwd = fd; 109 } else if (cmdq->client != NULL && cmdq->client->session == NULL) 110 cwd = cmdq->client->cwd; 111 else 112 cwd = s->cwd; 113 114 type = LAYOUT_TOPBOTTOM; 115 if (args_has(args, 'h')) 116 type = LAYOUT_LEFTRIGHT; 117 118 size = -1; 119 if (args_has(args, 'l')) { 120 size = args_strtonum(args, 'l', 0, INT_MAX, &cause); 121 if (cause != NULL) { 122 xasprintf(&new_cause, "size %s", cause); 123 free(cause); 124 cause = new_cause; 125 goto error; 126 } 127 } else if (args_has(args, 'p')) { 128 percentage = args_strtonum(args, 'p', 0, INT_MAX, &cause); 129 if (cause != NULL) { 130 xasprintf(&new_cause, "percentage %s", cause); 131 free(cause); 132 cause = new_cause; 133 goto error; 134 } 135 if (type == LAYOUT_TOPBOTTOM) 136 size = (wp->sy * percentage) / 100; 137 else 138 size = (wp->sx * percentage) / 100; 139 } 140 hlimit = options_get_number(&s->options, "history-limit"); 141 142 shell = options_get_string(&s->options, "default-shell"); 143 if (*shell == '\0' || areshell(shell)) 144 shell = _PATH_BSHELL; 145 146 if ((lc = layout_split_pane(wp, type, size, 0)) == NULL) { 147 cause = xstrdup("pane too small"); 148 goto error; 149 } 150 new_wp = window_add_pane(w, hlimit); 151 if (window_pane_spawn( 152 new_wp, cmd, shell, cwd, &env, s->tio, &cause) != 0) 153 goto error; 154 layout_assign_pane(lc, new_wp); 155 156 server_redraw_window(w); 157 158 if (!args_has(args, 'd')) { 159 window_set_active_pane(w, new_wp); 160 session_select(s, wl->idx); 161 server_redraw_session(s); 162 } else 163 server_status_session(s); 164 165 environ_free(&env); 166 167 if (args_has(args, 'P')) { 168 if ((template = args_get(args, 'F')) == NULL) 169 template = SPLIT_WINDOW_TEMPLATE; 170 171 ft = format_create(); 172 if ((c = cmd_find_client(cmdq, NULL, 1)) != NULL) 173 format_client(ft, c); 174 format_session(ft, s); 175 format_winlink(ft, s, wl); 176 format_window_pane(ft, new_wp); 177 178 cp = format_expand(ft, template); 179 cmdq_print(cmdq, "%s", cp); 180 free(cp); 181 182 format_free(ft); 183 } 184 notify_window_layout_changed(w); 185 186 if (fd != -1) 187 close(fd); 188 return (CMD_RETURN_NORMAL); 189 190 error: 191 environ_free(&env); 192 if (new_wp != NULL) 193 window_remove_pane(w, new_wp); 194 cmdq_error(cmdq, "create pane failed: %s", cause); 195 free(cause); 196 if (fd != -1) 197 close(fd); 198 return (CMD_RETURN_ERROR); 199 } 200