1 /* $OpenBSD$ */ 2 3 /* 4 * Copyright (c) 2012 George Nachman <tmux@georgester.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 <stdlib.h> 22 #include <string.h> 23 24 #include "tmux.h" 25 26 struct notify_entry { 27 const char *name; 28 struct cmd_find_state fs; 29 struct format_tree *formats; 30 31 struct client *client; 32 struct session *session; 33 struct window *window; 34 int pane; 35 }; 36 37 static struct cmdq_item * 38 notify_insert_one_hook(struct cmdq_item *item, struct notify_entry *ne, 39 struct cmd_list *cmdlist, struct cmdq_state *state) 40 { 41 struct cmdq_item *new_item; 42 char *s; 43 44 if (cmdlist == NULL) 45 return (item); 46 if (log_get_level() != 0) { 47 s = cmd_list_print(cmdlist, 0); 48 log_debug("%s: hook %s is: %s", __func__, ne->name, s); 49 free(s); 50 } 51 new_item = cmdq_get_command(cmdlist, state); 52 return (cmdq_insert_after(item, new_item)); 53 } 54 55 static void 56 notify_insert_hook(struct cmdq_item *item, struct notify_entry *ne) 57 { 58 struct cmd_find_state fs; 59 struct options *oo; 60 struct cmdq_state *state; 61 struct options_entry *o; 62 struct options_array_item *a; 63 struct cmd_list *cmdlist; 64 const char *value; 65 struct cmd_parse_result *pr; 66 67 log_debug("%s: inserting hook %s", __func__, ne->name); 68 69 cmd_find_clear_state(&fs, 0); 70 if (cmd_find_empty_state(&ne->fs) || !cmd_find_valid_state(&ne->fs)) 71 cmd_find_from_nothing(&fs, 0); 72 else 73 cmd_find_copy_state(&fs, &ne->fs); 74 75 if (fs.s == NULL) 76 oo = global_s_options; 77 else 78 oo = fs.s->options; 79 o = options_get(oo, ne->name); 80 if (o == NULL && fs.wp != NULL) { 81 oo = fs.wp->options; 82 o = options_get(oo, ne->name); 83 } 84 if (o == NULL && fs.wl != NULL) { 85 oo = fs.wl->window->options; 86 o = options_get(oo, ne->name); 87 } 88 if (o == NULL) { 89 log_debug("%s: hook %s not found", __func__, ne->name); 90 return; 91 } 92 93 state = cmdq_new_state(&fs, NULL, CMDQ_STATE_NOHOOKS); 94 cmdq_add_formats(state, ne->formats); 95 96 if (*ne->name == '@') { 97 value = options_get_string(oo, ne->name); 98 pr = cmd_parse_from_string(value, NULL); 99 switch (pr->status) { 100 case CMD_PARSE_ERROR: 101 log_debug("%s: can't parse hook %s: %s", __func__, 102 ne->name, pr->error); 103 free(pr->error); 104 break; 105 case CMD_PARSE_SUCCESS: 106 notify_insert_one_hook(item, ne, pr->cmdlist, state); 107 break; 108 } 109 } else { 110 a = options_array_first(o); 111 while (a != NULL) { 112 cmdlist = options_array_item_value(a)->cmdlist; 113 item = notify_insert_one_hook(item, ne, cmdlist, state); 114 a = options_array_next(a); 115 } 116 } 117 118 cmdq_free_state(state); 119 } 120 121 static enum cmd_retval 122 notify_callback(struct cmdq_item *item, void *data) 123 { 124 struct notify_entry *ne = data; 125 126 log_debug("%s: %s", __func__, ne->name); 127 128 if (strcmp(ne->name, "pane-mode-changed") == 0) 129 control_notify_pane_mode_changed(ne->pane); 130 if (strcmp(ne->name, "window-layout-changed") == 0) 131 control_notify_window_layout_changed(ne->window); 132 if (strcmp(ne->name, "window-pane-changed") == 0) 133 control_notify_window_pane_changed(ne->window); 134 if (strcmp(ne->name, "window-unlinked") == 0) 135 control_notify_window_unlinked(ne->session, ne->window); 136 if (strcmp(ne->name, "window-linked") == 0) 137 control_notify_window_linked(ne->session, ne->window); 138 if (strcmp(ne->name, "window-renamed") == 0) 139 control_notify_window_renamed(ne->window); 140 if (strcmp(ne->name, "client-session-changed") == 0) 141 control_notify_client_session_changed(ne->client); 142 if (strcmp(ne->name, "client-detached") == 0) 143 control_notify_client_detached(ne->client); 144 if (strcmp(ne->name, "session-renamed") == 0) 145 control_notify_session_renamed(ne->session); 146 if (strcmp(ne->name, "session-created") == 0) 147 control_notify_session_created(ne->session); 148 if (strcmp(ne->name, "session-closed") == 0) 149 control_notify_session_closed(ne->session); 150 if (strcmp(ne->name, "session-window-changed") == 0) 151 control_notify_session_window_changed(ne->session); 152 153 notify_insert_hook(item, ne); 154 155 if (ne->client != NULL) 156 server_client_unref(ne->client); 157 if (ne->session != NULL) 158 session_remove_ref(ne->session, __func__); 159 if (ne->window != NULL) 160 window_remove_ref(ne->window, __func__); 161 162 if (ne->fs.s != NULL) 163 session_remove_ref(ne->fs.s, __func__); 164 165 format_free(ne->formats); 166 free(__UNCONST(ne->name)); 167 free(ne); 168 169 return (CMD_RETURN_NORMAL); 170 } 171 172 static void 173 notify_add(const char *name, struct cmd_find_state *fs, struct client *c, 174 struct session *s, struct window *w, struct window_pane *wp) 175 { 176 struct notify_entry *ne; 177 struct cmdq_item *item; 178 179 item = cmdq_running(NULL); 180 if (item != NULL && (cmdq_get_flags(item) & CMDQ_STATE_NOHOOKS)) 181 return; 182 183 ne = xcalloc(1, sizeof *ne); 184 ne->name = xstrdup(name); 185 186 ne->client = c; 187 ne->session = s; 188 ne->window = w; 189 ne->pane = (wp != NULL ? wp->id : -1); 190 191 ne->formats = format_create(NULL, NULL, 0, FORMAT_NOJOBS); 192 format_add(ne->formats, "hook", "%s", name); 193 if (c != NULL) 194 format_add(ne->formats, "hook_client", "%s", c->name); 195 if (s != NULL) { 196 format_add(ne->formats, "hook_session", "$%u", s->id); 197 format_add(ne->formats, "hook_session_name", "%s", s->name); 198 } 199 if (w != NULL) { 200 format_add(ne->formats, "hook_window", "@%u", w->id); 201 format_add(ne->formats, "hook_window_name", "%s", w->name); 202 } 203 if (wp != NULL) 204 format_add(ne->formats, "hook_pane", "%%%d", wp->id); 205 format_log_debug(ne->formats, __func__); 206 207 if (c != NULL) 208 c->references++; 209 if (s != NULL) 210 session_add_ref(s, __func__); 211 if (w != NULL) 212 window_add_ref(w, __func__); 213 214 cmd_find_copy_state(&ne->fs, fs); 215 if (ne->fs.s != NULL) /* cmd_find_valid_state needs session */ 216 session_add_ref(ne->fs.s, __func__); 217 218 cmdq_append(NULL, cmdq_get_callback(notify_callback, ne)); 219 } 220 221 void 222 notify_hook(struct cmdq_item *item, const char *name) 223 { 224 struct cmd_find_state *target = cmdq_get_target(item); 225 struct notify_entry ne; 226 227 memset(&ne, 0, sizeof ne); 228 229 ne.name = name; 230 cmd_find_copy_state(&ne.fs, target); 231 232 ne.client = cmdq_get_client(item); 233 ne.session = target->s; 234 ne.window = target->w; 235 ne.pane = (target->wp != NULL ? target->wp->id : -1); 236 237 ne.formats = format_create(NULL, NULL, 0, FORMAT_NOJOBS); 238 format_add(ne.formats, "hook", "%s", name); 239 format_log_debug(ne.formats, __func__); 240 241 notify_insert_hook(item, &ne); 242 format_free(ne.formats); 243 } 244 245 void 246 notify_client(const char *name, struct client *c) 247 { 248 struct cmd_find_state fs; 249 250 cmd_find_from_client(&fs, c, 0); 251 notify_add(name, &fs, c, NULL, NULL, NULL); 252 } 253 254 void 255 notify_session(const char *name, struct session *s) 256 { 257 struct cmd_find_state fs; 258 259 if (session_alive(s)) 260 cmd_find_from_session(&fs, s, 0); 261 else 262 cmd_find_from_nothing(&fs, 0); 263 notify_add(name, &fs, NULL, s, NULL, NULL); 264 } 265 266 void 267 notify_winlink(const char *name, struct winlink *wl) 268 { 269 struct cmd_find_state fs; 270 271 cmd_find_from_winlink(&fs, wl, 0); 272 notify_add(name, &fs, NULL, wl->session, wl->window, NULL); 273 } 274 275 void 276 notify_session_window(const char *name, struct session *s, struct window *w) 277 { 278 struct cmd_find_state fs; 279 280 cmd_find_from_session_window(&fs, s, w, 0); 281 notify_add(name, &fs, NULL, s, w, NULL); 282 } 283 284 void 285 notify_window(const char *name, struct window *w) 286 { 287 struct cmd_find_state fs; 288 289 cmd_find_from_window(&fs, w, 0); 290 notify_add(name, &fs, NULL, NULL, w, NULL); 291 } 292 293 void 294 notify_pane(const char *name, struct window_pane *wp) 295 { 296 struct cmd_find_state fs; 297 298 cmd_find_from_pane(&fs, wp, 0); 299 notify_add(name, &fs, NULL, NULL, NULL, wp); 300 } 301