1 /* $OpenBSD: notify.c,v 1.26 2018/07/04 12:30:52 nicm Exp $ */ 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 #include <sys/queue.h> 21 22 #include <stdlib.h> 23 #include <string.h> 24 25 #include "tmux.h" 26 27 struct notify_entry { 28 const char *name; 29 30 struct client *client; 31 struct session *session; 32 struct window *window; 33 int pane; 34 35 struct cmd_find_state fs; 36 }; 37 38 static void 39 notify_hook1(struct cmdq_item *item, struct notify_entry *ne) 40 { 41 struct cmd_find_state fs; 42 struct hook *hook; 43 struct cmdq_item *new_item; 44 struct session *s = ne->session; 45 struct window *w = ne->window; 46 47 cmd_find_clear_state(&fs, 0); 48 if (cmd_find_empty_state(&ne->fs) || !cmd_find_valid_state(&ne->fs)) 49 cmd_find_from_nothing(&fs, 0); 50 else 51 cmd_find_copy_state(&fs, &ne->fs); 52 53 hook = hooks_find(hooks_get(fs.s), ne->name); 54 if (hook == NULL) 55 return; 56 log_debug("notify hook %s", ne->name); 57 58 new_item = cmdq_get_command(hook->cmdlist, &fs, NULL, CMDQ_NOHOOKS); 59 cmdq_format(new_item, "hook", "%s", ne->name); 60 61 if (s != NULL) { 62 cmdq_format(new_item, "hook_session", "$%u", s->id); 63 cmdq_format(new_item, "hook_session_name", "%s", s->name); 64 } 65 if (w != NULL) { 66 cmdq_format(new_item, "hook_window", "@%u", w->id); 67 cmdq_format(new_item, "hook_window_name", "%s", w->name); 68 } 69 if (ne->pane != -1) 70 cmdq_format(new_item, "hook_pane", "%%%d", ne->pane); 71 72 cmdq_insert_after(item, new_item); 73 } 74 75 static enum cmd_retval 76 notify_callback(struct cmdq_item *item, void *data) 77 { 78 struct notify_entry *ne = data; 79 80 log_debug("%s: %s", __func__, ne->name); 81 82 if (strcmp(ne->name, "pane-mode-changed") == 0) 83 control_notify_pane_mode_changed(ne->pane); 84 if (strcmp(ne->name, "window-layout-changed") == 0) 85 control_notify_window_layout_changed(ne->window); 86 if (strcmp(ne->name, "window-pane-changed") == 0) 87 control_notify_window_pane_changed(ne->window); 88 if (strcmp(ne->name, "window-unlinked") == 0) 89 control_notify_window_unlinked(ne->session, ne->window); 90 if (strcmp(ne->name, "window-linked") == 0) 91 control_notify_window_linked(ne->session, ne->window); 92 if (strcmp(ne->name, "window-renamed") == 0) 93 control_notify_window_renamed(ne->window); 94 if (strcmp(ne->name, "client-session-changed") == 0) 95 control_notify_client_session_changed(ne->client); 96 if (strcmp(ne->name, "session-renamed") == 0) 97 control_notify_session_renamed(ne->session); 98 if (strcmp(ne->name, "session-created") == 0) 99 control_notify_session_created(ne->session); 100 if (strcmp(ne->name, "session-closed") == 0) 101 control_notify_session_closed(ne->session); 102 if (strcmp(ne->name, "session-window-changed") == 0) 103 control_notify_session_window_changed(ne->session); 104 105 notify_hook1(item, ne); 106 107 if (ne->client != NULL) 108 server_client_unref(ne->client); 109 if (ne->session != NULL) 110 session_remove_ref(ne->session, __func__); 111 if (ne->window != NULL) 112 window_remove_ref(ne->window, __func__); 113 114 if (ne->fs.s != NULL) 115 session_remove_ref(ne->fs.s, __func__); 116 117 free((void *)ne->name); 118 free(ne); 119 120 return (CMD_RETURN_NORMAL); 121 } 122 123 static void 124 notify_add(const char *name, struct cmd_find_state *fs, struct client *c, 125 struct session *s, struct window *w, struct window_pane *wp) 126 { 127 struct notify_entry *ne; 128 struct cmdq_item *new_item; 129 130 ne = xcalloc(1, sizeof *ne); 131 ne->name = xstrdup(name); 132 133 ne->client = c; 134 ne->session = s; 135 ne->window = w; 136 137 if (wp != NULL) 138 ne->pane = wp->id; 139 else 140 ne->pane = -1; 141 142 if (c != NULL) 143 c->references++; 144 if (s != NULL) 145 session_add_ref(s, __func__); 146 if (w != NULL) 147 window_add_ref(w, __func__); 148 149 cmd_find_copy_state(&ne->fs, fs); 150 if (ne->fs.s != NULL) /* cmd_find_valid_state needs session */ 151 session_add_ref(ne->fs.s, __func__); 152 153 new_item = cmdq_get_callback(notify_callback, ne); 154 cmdq_append(NULL, new_item); 155 } 156 157 void 158 notify_hook(struct cmdq_item *item, const char *name) 159 { 160 struct notify_entry ne; 161 162 memset(&ne, 0, sizeof ne); 163 164 ne.name = name; 165 cmd_find_copy_state(&ne.fs, &item->target); 166 167 ne.client = item->client; 168 ne.session = item->target.s; 169 ne.window = item->target.w; 170 ne.pane = item->target.wp->id; 171 172 notify_hook1(item, &ne); 173 } 174 175 void 176 notify_input(struct window_pane *wp, struct evbuffer *input) 177 { 178 struct client *c; 179 180 TAILQ_FOREACH(c, &clients, entry) { 181 if (c->flags & CLIENT_CONTROL) 182 control_notify_input(c, wp, input); 183 } 184 } 185 186 void 187 notify_client(const char *name, struct client *c) 188 { 189 struct cmd_find_state fs; 190 191 cmd_find_from_client(&fs, c, 0); 192 notify_add(name, &fs, c, NULL, NULL, NULL); 193 } 194 195 void 196 notify_session(const char *name, struct session *s) 197 { 198 struct cmd_find_state fs; 199 200 if (session_alive(s)) 201 cmd_find_from_session(&fs, s, 0); 202 else 203 cmd_find_from_nothing(&fs, 0); 204 notify_add(name, &fs, NULL, s, NULL, NULL); 205 } 206 207 void 208 notify_winlink(const char *name, struct winlink *wl) 209 { 210 struct cmd_find_state fs; 211 212 cmd_find_from_winlink(&fs, wl, 0); 213 notify_add(name, &fs, NULL, wl->session, wl->window, NULL); 214 } 215 216 void 217 notify_session_window(const char *name, struct session *s, struct window *w) 218 { 219 struct cmd_find_state fs; 220 221 cmd_find_from_session_window(&fs, s, w, 0); 222 notify_add(name, &fs, NULL, s, w, NULL); 223 } 224 225 void 226 notify_window(const char *name, struct window *w) 227 { 228 struct cmd_find_state fs; 229 230 cmd_find_from_window(&fs, w, 0); 231 notify_add(name, &fs, NULL, NULL, w, NULL); 232 } 233 234 void 235 notify_pane(const char *name, struct window_pane *wp) 236 { 237 struct cmd_find_state fs; 238 239 cmd_find_from_pane(&fs, wp, 0); 240 notify_add(name, &fs, NULL, NULL, NULL, wp); 241 } 242