Annotation of embedaddon/tmux/cmd-split-window.c, revision 1.1
1.1 ! misho 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: static enum cmd_retval cmd_split_window_exec(struct cmd *,
! 36: struct cmdq_item *);
! 37:
! 38: const struct cmd_entry cmd_split_window_entry = {
! 39: .name = "split-window",
! 40: .alias = "splitw",
! 41:
! 42: .args = { "bc:dfF:l:hp:Pt:v", 0, -1 },
! 43: .usage = "[-bdfhvP] [-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: static enum cmd_retval
! 53: cmd_split_window_exec(struct cmd *self, struct cmdq_item *item)
! 54: {
! 55: struct args *args = self->args;
! 56: struct client *c = item->state.c;
! 57: struct session *s = item->state.tflag.s;
! 58: struct winlink *wl = item->state.tflag.wl;
! 59: struct window *w = wl->window;
! 60: struct window_pane *wp = item->state.tflag.wp, *new_wp = NULL;
! 61: struct environ *env;
! 62: const char *cmd, *path, *shell, *template, *cwd, *to_free;
! 63: char **argv, *cause, *new_cause, *cp;
! 64: u_int hlimit;
! 65: int argc, size, percentage;
! 66: enum layout_type type;
! 67: struct layout_cell *lc;
! 68: struct environ_entry *envent;
! 69: struct cmd_find_state fs;
! 70:
! 71: server_unzoom_window(w);
! 72:
! 73: if (args->argc == 0) {
! 74: cmd = options_get_string(s->options, "default-command");
! 75: if (cmd != NULL && *cmd != '\0') {
! 76: argc = 1;
! 77: argv = (char **)&cmd;
! 78: } else {
! 79: argc = 0;
! 80: argv = NULL;
! 81: }
! 82: } else {
! 83: argc = args->argc;
! 84: argv = args->argv;
! 85: }
! 86:
! 87: to_free = NULL;
! 88: if (args_has(args, 'c')) {
! 89: cwd = args_get(args, 'c');
! 90: to_free = cwd = format_single(item, cwd, c, s, NULL, NULL);
! 91: } else if (item->client != NULL && item->client->session == NULL)
! 92: cwd = item->client->cwd;
! 93: else
! 94: cwd = s->cwd;
! 95:
! 96: type = LAYOUT_TOPBOTTOM;
! 97: if (args_has(args, 'h'))
! 98: type = LAYOUT_LEFTRIGHT;
! 99:
! 100: size = -1;
! 101: if (args_has(args, 'l')) {
! 102: size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
! 103: if (cause != NULL) {
! 104: xasprintf(&new_cause, "size %s", cause);
! 105: free(cause);
! 106: cause = new_cause;
! 107: goto error;
! 108: }
! 109: } else if (args_has(args, 'p')) {
! 110: percentage = args_strtonum(args, 'p', 0, INT_MAX, &cause);
! 111: if (cause != NULL) {
! 112: xasprintf(&new_cause, "percentage %s", cause);
! 113: free(cause);
! 114: cause = new_cause;
! 115: goto error;
! 116: }
! 117: if (type == LAYOUT_TOPBOTTOM)
! 118: size = (wp->sy * percentage) / 100;
! 119: else
! 120: size = (wp->sx * percentage) / 100;
! 121: }
! 122: hlimit = options_get_number(s->options, "history-limit");
! 123:
! 124: shell = options_get_string(s->options, "default-shell");
! 125: if (*shell == '\0' || areshell(shell))
! 126: shell = _PATH_BSHELL;
! 127:
! 128: lc = layout_split_pane(wp, type, size, args_has(args, 'b'),
! 129: args_has(args, 'f'));
! 130: if (lc == NULL) {
! 131: cause = xstrdup("pane too small");
! 132: goto error;
! 133: }
! 134: new_wp = window_add_pane(w, wp, args_has(args, 'b'), hlimit);
! 135: layout_assign_pane(lc, new_wp);
! 136:
! 137: path = NULL;
! 138: if (item->client != NULL && item->client->session == NULL)
! 139: envent = environ_find(item->client->environ, "PATH");
! 140: else
! 141: envent = environ_find(s->environ, "PATH");
! 142: if (envent != NULL)
! 143: path = envent->value;
! 144:
! 145: env = environ_for_session(s);
! 146: if (window_pane_spawn(new_wp, argc, argv, path, shell, cwd, env,
! 147: s->tio, &cause) != 0) {
! 148: environ_free(env);
! 149: goto error;
! 150: }
! 151: environ_free(env);
! 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: if (args_has(args, 'P')) {
! 163: if ((template = args_get(args, 'F')) == NULL)
! 164: template = SPLIT_WINDOW_TEMPLATE;
! 165: cp = format_single(item, template, c, s, wl, new_wp);
! 166: cmdq_print(item, "%s", cp);
! 167: free(cp);
! 168: }
! 169: notify_window("window-layout-changed", w);
! 170:
! 171: if (to_free != NULL)
! 172: free((void *)to_free);
! 173:
! 174: cmd_find_clear_state(&fs, NULL, 0);
! 175: fs.s = s;
! 176: fs.wl = wl;
! 177: fs.w = w;
! 178: fs.wp = new_wp;
! 179: cmd_find_log_state(__func__, &fs);
! 180: hooks_insert(s->hooks, item, &fs, "after-split-window");
! 181:
! 182: return (CMD_RETURN_NORMAL);
! 183:
! 184: error:
! 185: if (new_wp != NULL) {
! 186: layout_close_pane(new_wp);
! 187: window_remove_pane(w, new_wp);
! 188: }
! 189: cmdq_error(item, "create pane failed: %s", cause);
! 190: free(cause);
! 191:
! 192: if (to_free != NULL)
! 193: free((void *)to_free);
! 194: return (CMD_RETURN_ERROR);
! 195: }
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