tmux/notify.c

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/* $OpenBSD$ */
/*
* Copyright (c) 2012 George Nachman <tmux@georgester.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/queue.h>
#include <stdlib.h>
#include <string.h>
#include "tmux.h"
struct notify_entry {
const char *name;
struct client *client;
struct session *session;
struct window *window;
int pane;
struct cmd_find_state fs;
};
static void
notify_hook(struct cmdq_item *item, struct notify_entry *ne)
{
struct cmd_find_state fs;
struct hook *hook;
struct cmdq_item *new_item;
struct session *s = ne->session;
struct window *w = ne->window;
cmd_find_clear_state(&fs, 0);
if (cmd_find_empty_state(&ne->fs) || !cmd_find_valid_state(&ne->fs))
cmd_find_from_nothing(&fs);
else
cmd_find_copy_state(&fs, &ne->fs);
hook = hooks_find(hooks_get(fs.s), ne->name);
if (hook == NULL)
return;
log_debug("notify hook %s", ne->name);
new_item = cmdq_get_command(hook->cmdlist, &fs, NULL, CMDQ_NOHOOKS);
cmdq_format(new_item, "hook", "%s", ne->name);
if (s != NULL) {
cmdq_format(new_item, "hook_session", "$%u", s->id);
cmdq_format(new_item, "hook_session_name", "%s", s->name);
}
if (w != NULL) {
cmdq_format(new_item, "hook_window", "@%u", w->id);
cmdq_format(new_item, "hook_window_name", "%s", w->name);
}
if (ne->pane != -1)
cmdq_format(new_item, "hook_pane", "%%%d", ne->pane);
cmdq_insert_after(item, new_item);
}
static enum cmd_retval
notify_callback(struct cmdq_item *item, void *data)
{
struct notify_entry *ne = data;
log_debug("%s: %s", __func__, ne->name);
if (strcmp(ne->name, "window-layout-changed") == 0)
control_notify_window_layout_changed(ne->window);
if (strcmp(ne->name, "window-unlinked") == 0)
control_notify_window_unlinked(ne->session, ne->window);
if (strcmp(ne->name, "window-linked") == 0)
control_notify_window_linked(ne->session, ne->window);
if (strcmp(ne->name, "window-renamed") == 0)
control_notify_window_renamed(ne->window);
if (strcmp(ne->name, "client-session-changed") == 0)
control_notify_client_session_changed(ne->client);
if (strcmp(ne->name, "session-renamed") == 0)
control_notify_session_renamed(ne->session);
if (strcmp(ne->name, "session-created") == 0)
control_notify_session_created(ne->session);
if (strcmp(ne->name, "session-closed") == 0)
control_notify_session_closed(ne->session);
notify_hook(item, ne);
if (ne->client != NULL)
server_client_unref(ne->client);
if (ne->session != NULL)
session_unref(ne->session);
if (ne->window != NULL)
window_remove_ref(ne->window);
if (ne->fs.s != NULL)
session_unref(ne->fs.s);
free((void *)ne->name);
free(ne);
return (CMD_RETURN_NORMAL);
}
static void
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notify_add(const char *name, struct cmd_find_state *fs, struct client *c,
struct session *s, struct window *w, struct window_pane *wp)
{
struct notify_entry *ne;
struct cmdq_item *new_item;
ne = xcalloc(1, sizeof *ne);
ne->name = xstrdup(name);
ne->client = c;
ne->session = s;
ne->window = w;
if (wp != NULL)
ne->pane = wp->id;
else
ne->pane = -1;
if (c != NULL)
c->references++;
if (s != NULL)
s->references++;
if (w != NULL)
w->references++;
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cmd_find_copy_state(&ne->fs, fs);
if (ne->fs.s != NULL)
ne->fs.s->references++; /* cmd_find_valid_state need session */
new_item = cmdq_get_callback(notify_callback, ne);
cmdq_append(NULL, new_item);
}
void
notify_input(struct window_pane *wp, struct evbuffer *input)
{
struct client *c;
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TAILQ_FOREACH(c, &clients, entry) {
if (c->flags & CLIENT_CONTROL)
control_notify_input(c, wp, input);
}
}
void
notify_client(const char *name, struct client *c)
{
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struct cmd_find_state fs;
cmd_find_from_client(&fs, c);
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notify_add(name, &fs, c, NULL, NULL, NULL);
}
void
notify_session(const char *name, struct session *s)
{
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struct cmd_find_state fs;
if (session_alive(s))
cmd_find_from_session(&fs, s);
else
cmd_find_from_nothing(&fs);
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notify_add(name, &fs, NULL, s, NULL, NULL);
}
void
notify_winlink(const char *name, struct winlink *wl)
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{
struct cmd_find_state fs;
cmd_find_from_winlink(&fs, wl);
notify_add(name, &fs, NULL, wl->session, wl->window, NULL);
}
void
notify_session_window(const char *name, struct session *s, struct window *w)
{
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struct cmd_find_state fs;
cmd_find_from_session_window(&fs, s, w);
notify_add(name, &fs, NULL, s, w, NULL);
}
void
notify_window(const char *name, struct window *w)
{
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struct cmd_find_state fs;
cmd_find_from_window(&fs, w);
notify_add(name, &fs, NULL, NULL, w, NULL);
}
void
notify_pane(const char *name, struct window_pane *wp)
{
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struct cmd_find_state fs;
cmd_find_from_pane(&fs, wp);
notify_add(name, &fs, NULL, NULL, NULL, wp);
}