Annotation of src/usr.bin/tmux/cmd-split-window.c, Revision 1.20
1.20 ! nicm 1: /* $OpenBSD: cmd-split-window.c,v 1.19 2010/01/07 20:52:18 nicm Exp $ */
1.1 nicm 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:
1.11 nicm 21: #include <paths.h>
1.1 nicm 22: #include <stdlib.h>
23: #include <unistd.h>
24:
25: #include "tmux.h"
26:
27: /*
28: * Split a window (add a new pane).
29: */
30:
31: int cmd_split_window_parse(struct cmd *, int, char **, char **);
32: int cmd_split_window_exec(struct cmd *, struct cmd_ctx *);
33: void cmd_split_window_free(struct cmd *);
34: void cmd_split_window_init(struct cmd *, int);
35: size_t cmd_split_window_print(struct cmd *, char *, size_t);
36:
37: struct cmd_split_window_data {
38: char *target;
39: char *cmd;
40: int flag_detached;
1.5 nicm 41: int flag_horizontal;
1.1 nicm 42: int percentage;
1.5 nicm 43: int size;
1.1 nicm 44: };
45:
46: const struct cmd_entry cmd_split_window_entry = {
47: "split-window", "splitw",
1.17 nicm 48: "[-dhv] [-p percentage|-l size] [-t target-pane] [command]",
1.14 nicm 49: 0, "",
1.1 nicm 50: cmd_split_window_init,
51: cmd_split_window_parse,
52: cmd_split_window_exec,
53: cmd_split_window_free,
54: cmd_split_window_print
55: };
56:
57: void
1.5 nicm 58: cmd_split_window_init(struct cmd *self, int key)
1.1 nicm 59: {
60: struct cmd_split_window_data *data;
61:
62: self->data = data = xmalloc(sizeof *data);
63: data->target = NULL;
64: data->cmd = NULL;
65: data->flag_detached = 0;
1.5 nicm 66: data->flag_horizontal = 0;
1.1 nicm 67: data->percentage = -1;
1.5 nicm 68: data->size = -1;
69:
70: switch (key) {
71: case '%':
72: data->flag_horizontal = 1;
1.16 nicm 73: break;
1.5 nicm 74: case '"':
75: data->flag_horizontal = 0;
76: break;
77: }
1.1 nicm 78: }
79:
80: int
81: cmd_split_window_parse(struct cmd *self, int argc, char **argv, char **cause)
82: {
83: struct cmd_split_window_data *data;
1.5 nicm 84: int opt;
1.1 nicm 85: const char *errstr;
86:
1.13 nicm 87: self->entry->init(self, KEYC_NONE);
1.1 nicm 88: data = self->data;
89:
1.5 nicm 90: while ((opt = getopt(argc, argv, "dhl:p:t:v")) != -1) {
1.1 nicm 91: switch (opt) {
92: case 'd':
93: data->flag_detached = 1;
94: break;
1.5 nicm 95: case 'h':
96: data->flag_horizontal = 1;
97: break;
1.1 nicm 98: case 't':
99: if (data->target == NULL)
100: data->target = xstrdup(optarg);
101: break;
102: case 'l':
1.5 nicm 103: if (data->percentage != -1 || data->size != -1)
104: break;
105: data->size = strtonum(optarg, 1, INT_MAX, &errstr);
106: if (errstr != NULL) {
107: xasprintf(cause, "size %s", errstr);
108: goto error;
1.1 nicm 109: }
110: break;
111: case 'p':
1.5 nicm 112: if (data->size != -1 || data->percentage != -1)
113: break;
114: data->percentage = strtonum(optarg, 1, 100, &errstr);
115: if (errstr != NULL) {
116: xasprintf(cause, "percentage %s", errstr);
117: goto error;
1.1 nicm 118: }
119: break;
1.5 nicm 120: case 'v':
121: data->flag_horizontal = 0;
122: break;
1.1 nicm 123: default:
124: goto usage;
125: }
126: }
127: argc -= optind;
128: argv += optind;
129: if (argc != 0 && argc != 1)
130: goto usage;
131:
132: if (argc == 1)
133: data->cmd = xstrdup(argv[0]);
134:
135: return (0);
136:
137: usage:
138: xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
139:
140: error:
141: self->entry->free(self);
142: return (-1);
143: }
144:
145: int
146: cmd_split_window_exec(struct cmd *self, struct cmd_ctx *ctx)
147: {
148: struct cmd_split_window_data *data = self->data;
149: struct session *s;
150: struct winlink *wl;
151: struct window *w;
1.19 nicm 152: struct window_pane *wp, *new_wp = NULL;
1.8 nicm 153: struct environ env;
1.1 nicm 154: char *cmd, *cwd, *cause;
1.11 nicm 155: const char *shell;
1.2 nicm 156: u_int hlimit;
1.5 nicm 157: int size;
158: enum layout_type type;
1.19 nicm 159: struct layout_cell *lc;
1.1 nicm 160:
1.17 nicm 161: if ((wl = cmd_find_pane(ctx, data->target, &s, &wp)) == NULL)
1.1 nicm 162: return (-1);
163: w = wl->window;
164:
1.8 nicm 165: environ_init(&env);
166: environ_copy(&global_environ, &env);
167: environ_copy(&s->environ, &env);
168: server_fill_environ(s, &env);
1.1 nicm 169:
170: cmd = data->cmd;
171: if (cmd == NULL)
172: cmd = options_get_string(&s->options, "default-command");
1.20 ! nicm 173: cwd = options_get_string(&s->options, "default-path");
! 174: if (*cwd == '\0') {
! 175: if (ctx->cmdclient != NULL && ctx->cmdclient->cwd != NULL)
! 176: cwd = ctx->cmdclient->cwd;
! 177: else
! 178: cwd = s->cwd;
! 179: }
1.1 nicm 180:
1.15 nicm 181: type = LAYOUT_TOPBOTTOM;
182: if (data->flag_horizontal)
183: type = LAYOUT_LEFTRIGHT;
184:
1.5 nicm 185: size = -1;
186: if (data->size != -1)
187: size = data->size;
1.15 nicm 188: else if (data->percentage != -1) {
189: if (type == LAYOUT_TOPBOTTOM)
1.18 nicm 190: size = (wp->sy * data->percentage) / 100;
1.15 nicm 191: else
1.18 nicm 192: size = (wp->sx * data->percentage) / 100;
1.15 nicm 193: }
1.5 nicm 194: hlimit = options_get_number(&s->options, "history-limit");
195:
1.11 nicm 196: shell = options_get_string(&s->options, "default-shell");
197: if (*shell == '\0' || areshell(shell))
198: shell = _PATH_BSHELL;
199:
1.19 nicm 200: if ((lc = layout_split_pane(wp, type, size)) == NULL) {
1.5 nicm 201: cause = xstrdup("pane too small");
202: goto error;
1.1 nicm 203: }
1.19 nicm 204: new_wp = window_add_pane(w, hlimit);
205: if (window_pane_spawn(
206: new_wp, cmd, shell, cwd, &env, s->tio, &cause) != 0)
207: goto error;
208: layout_assign_pane(lc, new_wp);
1.5 nicm 209:
1.1 nicm 210: server_redraw_window(w);
211:
212: if (!data->flag_detached) {
1.17 nicm 213: window_set_active_pane(w, new_wp);
1.1 nicm 214: session_select(s, wl->idx);
215: server_redraw_session(s);
216: } else
217: server_status_session(s);
218:
1.8 nicm 219: environ_free(&env);
1.1 nicm 220: return (0);
1.5 nicm 221:
222: error:
1.8 nicm 223: environ_free(&env);
1.17 nicm 224: if (new_wp != NULL)
225: window_remove_pane(w, new_wp);
1.5 nicm 226: ctx->error(ctx, "create pane failed: %s", cause);
227: xfree(cause);
228: return (-1);
1.1 nicm 229: }
230:
231: void
232: cmd_split_window_free(struct cmd *self)
233: {
234: struct cmd_split_window_data *data = self->data;
235:
236: if (data->target != NULL)
237: xfree(data->target);
238: if (data->cmd != NULL)
239: xfree(data->cmd);
240: xfree(data);
241: }
242:
243: size_t
244: cmd_split_window_print(struct cmd *self, char *buf, size_t len)
245: {
246: struct cmd_split_window_data *data = self->data;
247: size_t off = 0;
248:
249: off += xsnprintf(buf, len, "%s", self->entry->name);
250: if (data == NULL)
251: return (off);
252: if (off < len && data->flag_detached)
253: off += xsnprintf(buf + off, len - off, " -d");
1.5 nicm 254: if (off < len && data->flag_horizontal)
255: off += xsnprintf(buf + off, len - off, " -h");
1.10 nicm 256: if (off < len && data->size > 0)
257: off += xsnprintf(buf + off, len - off, " -l %d", data->size);
258: if (off < len && data->percentage > 0) {
259: off += xsnprintf(
260: buf + off, len - off, " -p %d", data->percentage);
261: }
1.1 nicm 262: if (off < len && data->target != NULL)
263: off += cmd_prarg(buf + off, len - off, " -t ", data->target);
264: if (off < len && data->cmd != NULL)
265: off += cmd_prarg(buf + off, len - off, " ", data->cmd);
266: return (off);
267: }
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