1 /* $OpenBSD: cmd-split-window.c,v 1.115 2025/01/27 09:05:22 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:vZ", 0, -1, NULL }, 44 .usage = "[-bdefhIPvZ] [-c start-directory] [-e environment] " 45 "[-F format] [-l size] " CMD_TARGET_PANE_USAGE 46 " [shell-command]", 47 48 .target = { 't', CMD_FIND_PANE, 0 }, 49 50 .flags = 0, 51 .exec = cmd_split_window_exec 52 }; 53 54 static enum cmd_retval 55 cmd_split_window_exec(struct cmd *self, struct cmdq_item *item) 56 { 57 struct args *args = cmd_get_args(self); 58 struct cmd_find_state *current = cmdq_get_current(item); 59 struct cmd_find_state *target = cmdq_get_target(item); 60 struct spawn_context sc = { 0 }; 61 struct client *tc = cmdq_get_target_client(item); 62 struct session *s = target->s; 63 struct winlink *wl = target->wl; 64 struct window *w = wl->window; 65 struct window_pane *wp = target->wp, *new_wp; 66 enum layout_type type; 67 struct layout_cell *lc; 68 struct cmd_find_state fs; 69 int size, flags, input; 70 const char *template; 71 char *cause = NULL, *cp; 72 struct args_value *av; 73 u_int count = args_count(args), curval = 0; 74 75 type = LAYOUT_TOPBOTTOM; 76 if (args_has(args, 'h')) 77 type = LAYOUT_LEFTRIGHT; 78 79 /* If the 'p' flag is dropped then this bit can be moved into 'l'. */ 80 if (args_has(args, 'l') || args_has(args, 'p')) { 81 if (args_has(args, 'f')) { 82 if (type == LAYOUT_TOPBOTTOM) 83 curval = w->sy; 84 else 85 curval = w->sx; 86 } else { 87 if (type == LAYOUT_TOPBOTTOM) 88 curval = wp->sy; 89 else 90 curval = wp->sx; 91 } 92 } 93 94 size = -1; 95 if (args_has(args, 'l')) { 96 size = args_percentage_and_expand(args, 'l', 0, INT_MAX, curval, 97 item, &cause); 98 } else if (args_has(args, 'p')) { 99 size = args_strtonum_and_expand(args, 'p', 0, 100, item, 100 &cause); 101 if (cause == NULL) 102 size = curval * size / 100; 103 } 104 if (cause != NULL) { 105 cmdq_error(item, "size %s", cause); 106 free(cause); 107 return (CMD_RETURN_ERROR); 108 } 109 110 window_push_zoom(wp->window, 1, args_has(args, 'Z')); 111 input = (args_has(args, 'I') && count == 0); 112 113 flags = 0; 114 if (args_has(args, 'b')) 115 flags |= SPAWN_BEFORE; 116 if (args_has(args, 'f')) 117 flags |= SPAWN_FULLSIZE; 118 if (input || (count == 1 && *args_string(args, 0) == '\0')) 119 flags |= SPAWN_EMPTY; 120 121 lc = layout_split_pane(wp, type, size, flags); 122 if (lc == NULL) { 123 cmdq_error(item, "no space for new pane"); 124 return (CMD_RETURN_ERROR); 125 } 126 127 sc.item = item; 128 sc.s = s; 129 sc.wl = wl; 130 131 sc.wp0 = wp; 132 sc.lc = lc; 133 134 args_to_vector(args, &sc.argc, &sc.argv); 135 sc.environ = environ_create(); 136 137 av = args_first_value(args, 'e'); 138 while (av != NULL) { 139 environ_put(sc.environ, av->string, 0); 140 av = args_next_value(av); 141 } 142 143 sc.idx = -1; 144 sc.cwd = args_get(args, 'c'); 145 146 sc.flags = flags; 147 if (args_has(args, 'd')) 148 sc.flags |= SPAWN_DETACHED; 149 if (args_has(args, 'Z')) 150 sc.flags |= SPAWN_ZOOM; 151 152 if ((new_wp = spawn_pane(&sc, &cause)) == NULL) { 153 cmdq_error(item, "create pane failed: %s", cause); 154 free(cause); 155 if (sc.argv != NULL) 156 cmd_free_argv(sc.argc, sc.argv); 157 environ_free(sc.environ); 158 return (CMD_RETURN_ERROR); 159 } 160 if (input) { 161 switch (window_pane_start_input(new_wp, item, &cause)) { 162 case -1: 163 server_client_remove_pane(new_wp); 164 layout_close_pane(new_wp); 165 window_remove_pane(wp->window, new_wp); 166 cmdq_error(item, "%s", cause); 167 free(cause); 168 if (sc.argv != NULL) 169 cmd_free_argv(sc.argc, sc.argv); 170 environ_free(sc.environ); 171 return (CMD_RETURN_ERROR); 172 case 1: 173 input = 0; 174 break; 175 } 176 } 177 if (!args_has(args, 'd')) 178 cmd_find_from_winlink_pane(current, wl, new_wp, 0); 179 window_pop_zoom(wp->window); 180 server_redraw_window(wp->window); 181 server_status_session(s); 182 183 if (args_has(args, 'P')) { 184 if ((template = args_get(args, 'F')) == NULL) 185 template = SPLIT_WINDOW_TEMPLATE; 186 cp = format_single(item, template, tc, s, wl, new_wp); 187 cmdq_print(item, "%s", cp); 188 free(cp); 189 } 190 191 cmd_find_from_winlink_pane(&fs, wl, new_wp, 0); 192 cmdq_insert_hook(s, item, &fs, "after-split-window"); 193 194 if (sc.argv != NULL) 195 cmd_free_argv(sc.argc, sc.argv); 196 environ_free(sc.environ); 197 if (input) 198 return (CMD_RETURN_WAIT); 199 return (CMD_RETURN_NORMAL); 200 } 201