1/* $OpenBSD$ */
2
3/*
4 * Copyright (c) 2012 George Nachman <[email protected]>
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
26struct notify_entry {
27 const char *name;
28
29 struct client *client;
30 struct session *session;
31 struct window *window;
32 int pane;
33
34 struct cmd_find_state fs;
35};
36
37static void
38notify_hook_formats(struct cmdq_item *item, struct session *s, struct window *w,
39 int pane)
40{
41 if (s != NULL) {
42 cmdq_format(item, "hook_session", "$%u", s->id);
43 cmdq_format(item, "hook_session_name", "%s", s->name);
44 }
45 if (w != NULL) {
46 cmdq_format(item, "hook_window", "@%u", w->id);
47 cmdq_format(item, "hook_window_name", "%s", w->name);
48 }
49 if (pane != -1)
50 cmdq_format(item, "hook_pane", "%%%d", pane);
51}
52
53static void
54notify_insert_hook(struct cmdq_item *item, struct notify_entry *ne)
55{
56 struct cmd_find_state fs;
57 struct options *oo;
58 struct cmdq_item *new_item;
59 struct session *s = ne->session;
60 struct window *w = ne->window;
61 struct options_entry *o;
62 struct options_array_item *a;
63 struct cmd_list *cmdlist;
64
65 log_debug("%s: %s", __func__, ne->name);
66
67 cmd_find_clear_state(&fs, 0);
68 if (cmd_find_empty_state(&ne->fs) || !cmd_find_valid_state(&ne->fs))
69 cmd_find_from_nothing(&fs, 0);
70 else
71 cmd_find_copy_state(&fs, &ne->fs);
72
73 if (fs.s == NULL)
74 oo = global_s_options;
75 else
76 oo = fs.s->options;
77 o = options_get(oo, ne->name);
78 if (o == NULL)
79 return;
80
81 a = options_array_first(o);
82 while (a != NULL) {
83 cmdlist = options_array_item_value(a)->cmdlist;
84 if (cmdlist == NULL) {
85 a = options_array_next(a);
86 continue;
87 }
88
89 new_item = cmdq_get_command(cmdlist, &fs, NULL, CMDQ_NOHOOKS);
90 cmdq_format(new_item, "hook", "%s", ne->name);
91 notify_hook_formats(new_item, s, w, ne->pane);
92 item = cmdq_insert_after(item, new_item);
93
94 a = options_array_next(a);
95 }
96}
97
98static enum cmd_retval
99notify_callback(struct cmdq_item *item, void *data)
100{
101 struct notify_entry *ne = data;
102
103 log_debug("%s: %s", __func__, ne->name);
104
105 if (strcmp(ne->name, "pane-mode-changed") == 0)
106 control_notify_pane_mode_changed(ne->pane);
107 if (strcmp(ne->name, "window-layout-changed") == 0)
108 control_notify_window_layout_changed(ne->window);
109 if (strcmp(ne->name, "window-pane-changed") == 0)
110 control_notify_window_pane_changed(ne->window);
111 if (strcmp(ne->name, "window-unlinked") == 0)
112 control_notify_window_unlinked(ne->session, ne->window);
113 if (strcmp(ne->name, "window-linked") == 0)
114 control_notify_window_linked(ne->session, ne->window);
115 if (strcmp(ne->name, "window-renamed") == 0)
116 control_notify_window_renamed(ne->window);
117 if (strcmp(ne->name, "client-session-changed") == 0)
118 control_notify_client_session_changed(ne->client);
119 if (strcmp(ne->name, "session-renamed") == 0)
120 control_notify_session_renamed(ne->session);
121 if (strcmp(ne->name, "session-created") == 0)
122 control_notify_session_created(ne->session);
123 if (strcmp(ne->name, "session-closed") == 0)
124 control_notify_session_closed(ne->session);
125 if (strcmp(ne->name, "session-window-changed") == 0)
126 control_notify_session_window_changed(ne->session);
127
128 notify_insert_hook(item, ne);
129
130 if (ne->client != NULL)
131 server_client_unref(ne->client);
132 if (ne->session != NULL)
133 session_remove_ref(ne->session, __func__);
134 if (ne->window != NULL)
135 window_remove_ref(ne->window, __func__);
136
137 if (ne->fs.s != NULL)
138 session_remove_ref(ne->fs.s, __func__);
139
140 free((void *)ne->name);
141 free(ne);
142
143 return (CMD_RETURN_NORMAL);
144}
145
146static void
147notify_add(const char *name, struct cmd_find_state *fs, struct client *c,
148 struct session *s, struct window *w, struct window_pane *wp)
149{
150 struct notify_entry *ne;
151 struct cmdq_item *new_item;
152
153 ne = xcalloc(1, sizeof *ne);
154 ne->name = xstrdup(name);
155
156 ne->client = c;
157 ne->session = s;
158 ne->window = w;
159
160 if (wp != NULL)
161 ne->pane = wp->id;
162 else
163 ne->pane = -1;
164
165 if (c != NULL)
166 c->references++;
167 if (s != NULL)
168 session_add_ref(s, __func__);
169 if (w != NULL)
170 window_add_ref(w, __func__);
171
172 cmd_find_copy_state(&ne->fs, fs);
173 if (ne->fs.s != NULL) /* cmd_find_valid_state needs session */
174 session_add_ref(ne->fs.s, __func__);
175
176 new_item = cmdq_get_callback(notify_callback, ne);
177 cmdq_append(NULL, new_item);
178}
179
180void
181notify_hook(struct cmdq_item *item, const char *name)
182{
183 struct notify_entry ne;
184
185 memset(&ne, 0, sizeof ne);
186
187 ne.name = name;
188 cmd_find_copy_state(&ne.fs, &item->target);
189
190 ne.client = item->client;
191 ne.session = item->target.s;
192 ne.window = item->target.w;
193 ne.pane = item->target.wp->id;
194
195 notify_insert_hook(item, &ne);
196}
197
198void
199notify_input(struct window_pane *wp, const u_char *buf, size_t len)
200{
201 struct client *c;
202
203 TAILQ_FOREACH(c, &clients, entry) {
204 if (c->flags & CLIENT_CONTROL)
205 control_notify_input(c, wp, buf, len);
206 }
207}
208
209void
210notify_client(const char *name, struct client *c)
211{
212 struct cmd_find_state fs;
213
214 cmd_find_from_client(&fs, c, 0);
215 notify_add(name, &fs, c, NULL, NULL, NULL);
216}
217
218void
219notify_session(const char *name, struct session *s)
220{
221 struct cmd_find_state fs;
222
223 if (session_alive(s))
224 cmd_find_from_session(&fs, s, 0);
225 else
226 cmd_find_from_nothing(&fs, 0);
227 notify_add(name, &fs, NULL, s, NULL, NULL);
228}
229
230void
231notify_winlink(const char *name, struct winlink *wl)
232{
233 struct cmd_find_state fs;
234
235 cmd_find_from_winlink(&fs, wl, 0);
236 notify_add(name, &fs, NULL, wl->session, wl->window, NULL);
237}
238
239void
240notify_session_window(const char *name, struct session *s, struct window *w)
241{
242 struct cmd_find_state fs;
243
244 cmd_find_from_session_window(&fs, s, w, 0);
245 notify_add(name, &fs, NULL, s, w, NULL);
246}
247
248void
249notify_window(const char *name, struct window *w)
250{
251 struct cmd_find_state fs;
252
253 cmd_find_from_window(&fs, w, 0);
254 notify_add(name, &fs, NULL, NULL, w, NULL);
255}
256
257void
258notify_pane(const char *name, struct window_pane *wp)
259{
260 struct cmd_find_state fs;
261
262 cmd_find_from_pane(&fs, wp, 0);
263 notify_add(name, &fs, NULL, NULL, NULL, wp);
264}
265