1 /* $OpenBSD: cmd-split-window.c,v 1.101 2020/04/13 14:04:25 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 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:v", 0, -1 }, 44 .usage = "[-bdefhIPv] [-c start-directory] [-e environment] " 45 "[-F format] [-l size] " CMD_TARGET_PANE_USAGE " [command]", 46 47 .target = { 't', CMD_FIND_PANE, 0 }, 48 49 .flags = 0, 50 .exec = cmd_split_window_exec 51 }; 52 53 static enum cmd_retval 54 cmd_split_window_exec(struct cmd *self, struct cmdq_item *item) 55 { 56 struct args *args = cmd_get_args(self); 57 struct cmdq_state *state = cmdq_get_state(item); 58 struct cmd_find_state *current = &state->current; 59 struct cmd_find_state *target = cmdq_get_target(item); 60 struct spawn_context sc; 61 struct client *c = cmd_find_client(item, NULL, 1); 62 struct session *s = target->s; 63 struct winlink *wl = target->wl; 64 struct window_pane *wp = target->wp, *new_wp; 65 enum layout_type type; 66 struct layout_cell *lc; 67 struct cmd_find_state fs; 68 int size, percentage, flags, input; 69 const char *template, *add, *errstr, *p; 70 char *cause, *cp, *copy; 71 size_t plen; 72 struct args_value *value; 73 74 if (args_has(args, 'h')) 75 type = LAYOUT_LEFTRIGHT; 76 else 77 type = LAYOUT_TOPBOTTOM; 78 if ((p = args_get(args, 'l')) != NULL) { 79 plen = strlen(p); 80 if (p[plen - 1] == '%') { 81 copy = xstrdup(p); 82 copy[plen - 1] = '\0'; 83 percentage = strtonum(copy, 0, INT_MAX, &errstr); 84 free(copy); 85 if (errstr != NULL) { 86 cmdq_error(item, "percentage %s", errstr); 87 return (CMD_RETURN_ERROR); 88 } 89 if (type == LAYOUT_TOPBOTTOM) 90 size = (wp->sy * percentage) / 100; 91 else 92 size = (wp->sx * percentage) / 100; 93 } else { 94 size = args_strtonum(args, 'l', 0, INT_MAX, &cause); 95 if (cause != NULL) { 96 cmdq_error(item, "lines %s", cause); 97 free(cause); 98 return (CMD_RETURN_ERROR); 99 } 100 } 101 } else if (args_has(args, 'p')) { 102 percentage = args_strtonum(args, 'p', 0, INT_MAX, &cause); 103 if (cause != NULL) { 104 cmdq_error(item, "create pane failed: -p %s", cause); 105 free(cause); 106 return (CMD_RETURN_ERROR); 107 } 108 if (type == LAYOUT_TOPBOTTOM) 109 size = (wp->sy * percentage) / 100; 110 else 111 size = (wp->sx * percentage) / 100; 112 } else 113 size = -1; 114 115 server_unzoom_window(wp->window); 116 input = (args_has(args, 'I') && args->argc == 0); 117 118 flags = 0; 119 if (args_has(args, 'b')) 120 flags |= SPAWN_BEFORE; 121 if (args_has(args, 'f')) 122 flags |= SPAWN_FULLSIZE; 123 if (input || (args->argc == 1 && *args->argv[0] == '\0')) 124 flags |= SPAWN_EMPTY; 125 126 lc = layout_split_pane(wp, type, size, flags); 127 if (lc == NULL) { 128 cmdq_error(item, "no space for new pane"); 129 return (CMD_RETURN_ERROR); 130 } 131 132 memset(&sc, 0, sizeof sc); 133 sc.item = item; 134 sc.s = s; 135 sc.wl = wl; 136 137 sc.wp0 = wp; 138 sc.lc = lc; 139 140 sc.name = NULL; 141 sc.argc = args->argc; 142 sc.argv = args->argv; 143 sc.environ = environ_create(); 144 145 add = args_first_value(args, 'e', &value); 146 while (add != NULL) { 147 environ_put(sc.environ, add, 0); 148 add = args_next_value(&value); 149 } 150 151 sc.idx = -1; 152 sc.cwd = args_get(args, 'c'); 153 154 sc.flags = flags; 155 if (args_has(args, 'd')) 156 sc.flags |= SPAWN_DETACHED; 157 158 if ((new_wp = spawn_pane(&sc, &cause)) == NULL) { 159 cmdq_error(item, "create pane failed: %s", cause); 160 free(cause); 161 return (CMD_RETURN_ERROR); 162 } 163 if (input && window_pane_start_input(new_wp, item, &cause) != 0) { 164 layout_close_pane(new_wp); 165 window_remove_pane(wp->window, new_wp); 166 cmdq_error(item, "%s", cause); 167 free(cause); 168 return (CMD_RETURN_ERROR); 169 } 170 if (!args_has(args, 'd')) 171 cmd_find_from_winlink_pane(current, wl, new_wp, 0); 172 server_redraw_window(wp->window); 173 server_status_session(s); 174 175 if (args_has(args, 'P')) { 176 if ((template = args_get(args, 'F')) == NULL) 177 template = SPLIT_WINDOW_TEMPLATE; 178 cp = format_single(item, template, c, s, wl, new_wp); 179 cmdq_print(item, "%s", cp); 180 free(cp); 181 } 182 183 cmd_find_from_winlink_pane(&fs, wl, new_wp, 0); 184 cmdq_insert_hook(s, item, &fs, "after-split-window"); 185 186 environ_free(sc.environ); 187 if (input) 188 return (CMD_RETURN_WAIT); 189 return (CMD_RETURN_NORMAL); 190 } 191