notify.c - tmux - Rivoreo Source Code Repositories

 /* $OpenBSD$ */

 /*
  * 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 <stdlib.h>
 #include <string.h>

 #include "tmux.h"

 struct notify_entry {
 	const char		*name;
 	struct cmd_find_state	 fs;
 	struct format_tree	*formats;

 	struct client		*client;
 	struct session		*session;
 	struct window		*window;
 	int			 pane;
 };

 static struct cmdq_item *
 notify_insert_one_hook(struct cmdq_item *item, struct notify_entry *ne,
     struct cmd_list *cmdlist, struct cmdq_state *state)
 {
 	struct cmdq_item	*new_item;
 	char			*s;

 	if (cmdlist == NULL)
 		return (item);
 	if (log_get_level() != 0) {
 		s = cmd_list_print(cmdlist, 0);
 		log_debug("%s: hook %s is: %s", __func__, ne->name, s);
 		free(s);
 	}
 	new_item = cmdq_get_command(cmdlist, state);
 	return (cmdq_insert_after(item, new_item));
 }

 static void
 notify_insert_hook(struct cmdq_item *item, struct notify_entry *ne)
 {
 	struct cmd_find_state		 fs;
 	struct options			*oo;
 	struct cmdq_state		*state;
 	struct options_entry		*o;
 	struct options_array_item	*a;
 	struct cmd_list			*cmdlist;
 	const char			*value;
 	struct cmd_parse_result		*pr;

 	log_debug("%s: inserting hook %s", __func__, ne->name);

 	cmd_find_clear_state(&fs, 0);
 	if (cmd_find_empty_state(&ne->fs) || !cmd_find_valid_state(&ne->fs))
 		cmd_find_from_nothing(&fs, 0);
 	else
 		cmd_find_copy_state(&fs, &ne->fs);

 	if (fs.s == NULL)
 		oo = global_s_options;
 	else
 		oo = fs.s->options;
 	o = options_get(oo, ne->name);
 	if (o == NULL && fs.wp != NULL) {
 		oo = fs.wp->options;
 		o = options_get(oo, ne->name);
 	}
 	if (o == NULL && fs.wl != NULL) {
 		oo = fs.wl->window->options;
 		o = options_get(oo, ne->name);
 	}
 	if (o == NULL) {
 		log_debug("%s: hook %s not found", __func__, ne->name);
 		return;
 	}

 	state = cmdq_new_state(&fs, NULL, CMDQ_STATE_NOHOOKS);
 	cmdq_add_formats(state, ne->formats);

 	if (*ne->name == '@') {
 		value = options_get_string(oo, ne->name);
 		pr = cmd_parse_from_string(value, NULL);
 		switch (pr->status) {
 		case CMD_PARSE_ERROR:
 			log_debug("%s: can't parse hook %s: %s", __func__,
 			    ne->name, pr->error);
 			free(pr->error);
 			break;
 		case CMD_PARSE_SUCCESS:
 			notify_insert_one_hook(item, ne, pr->cmdlist, state);
 			break;
 		}
 	} else {
 		a = options_array_first(o);
 		while (a != NULL) {
 			cmdlist = options_array_item_value(a)->cmdlist;
 			item = notify_insert_one_hook(item, ne, cmdlist, state);
 			a = options_array_next(a);
 		}
 	}

 	cmdq_free_state(state);
 }

 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, "pane-mode-changed") == 0)
 		control_notify_pane_mode_changed(ne->pane);
 	if (strcmp(ne->name, "window-layout-changed") == 0)
 		control_notify_window_layout_changed(ne->window);
 	if (strcmp(ne->name, "window-pane-changed") == 0)
 		control_notify_window_pane_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, "client-detached") == 0)
 		control_notify_client_detached(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);
 	if (strcmp(ne->name, "session-window-changed") == 0)
 		control_notify_session_window_changed(ne->session);

 	notify_insert_hook(item, ne);

 	if (ne->client != NULL)
 		server_client_unref(ne->client);
 	if (ne->session != NULL)
 		session_remove_ref(ne->session, __func__);
 	if (ne->window != NULL)
 		window_remove_ref(ne->window, __func__);

 	if (ne->fs.s != NULL)
 		session_remove_ref(ne->fs.s, __func__);

 	format_free(ne->formats);
 	free((void *)ne->name);
 	free(ne);

 	return (CMD_RETURN_NORMAL);
 }

 static void
 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	*item;

 	item = cmdq_running(NULL);
 	if (item != NULL && (cmdq_get_flags(item) & CMDQ_STATE_NOHOOKS))
 		return;

 	ne = xcalloc(1, sizeof *ne);
 	ne->name = xstrdup(name);

 	ne->client = c;
 	ne->session = s;
 	ne->window = w;
 	ne->pane = (wp != NULL ? wp->id : -1);

 	ne->formats = format_create(NULL, NULL, 0, FORMAT_NOJOBS);
 	format_add(ne->formats, "hook", "%s", name);
 	if (c != NULL)
 		format_add(ne->formats, "hook_client", "%s", c->name);
 	if (s != NULL) {
 		format_add(ne->formats, "hook_session", "$%u", s->id);
 		format_add(ne->formats, "hook_session_name", "%s", s->name);
 	}
 	if (w != NULL) {
 		format_add(ne->formats, "hook_window", "@%u", w->id);
 		format_add(ne->formats, "hook_window_name", "%s", w->name);
 	}
 	if (wp != NULL)
 		format_add(ne->formats, "hook_pane", "%%%d", wp->id);
 	format_log_debug(ne->formats, __func__);

 	if (c != NULL)
 		c->references++;
 	if (s != NULL)
 		session_add_ref(s, __func__);
 	if (w != NULL)
 		window_add_ref(w, __func__);

 	cmd_find_copy_state(&ne->fs, fs);
 	if (ne->fs.s != NULL) /* cmd_find_valid_state needs session */
 		session_add_ref(ne->fs.s, __func__);

 	cmdq_append(NULL, cmdq_get_callback(notify_callback, ne));
 }

 void
 notify_hook(struct cmdq_item *item, const char *name)
 {
 	struct cmd_find_state	*target = cmdq_get_target(item);
 	struct notify_entry	 ne;

 	memset(&ne, 0, sizeof ne);

 	ne.name = name;
 	cmd_find_copy_state(&ne.fs, target);

 	ne.client = cmdq_get_client(item);
 	ne.session = target->s;
 	ne.window = target->w;
 	ne.pane = (target->wp != NULL ? target->wp->id : -1);

 	ne.formats = format_create(NULL, NULL, 0, FORMAT_NOJOBS);
 	format_add(ne.formats, "hook", "%s", name);
 	format_log_debug(ne.formats, __func__);

 	notify_insert_hook(item, &ne);
 	format_free(ne.formats);
 }

 void
 notify_client(const char *name, struct client *c)
 {
 	struct cmd_find_state	fs;

 	cmd_find_from_client(&fs, c, 0);
 	notify_add(name, &fs, c, NULL, NULL, NULL);
 }

 void
 notify_session(const char *name, struct session *s)
 {
 	struct cmd_find_state	fs;

 	if (session_alive(s))
 		cmd_find_from_session(&fs, s, 0);
 	else
 		cmd_find_from_nothing(&fs, 0);
 	notify_add(name, &fs, NULL, s, NULL, NULL);
 }

 void
 notify_winlink(const char *name, struct winlink *wl)
 {
 	struct cmd_find_state	fs;

 	cmd_find_from_winlink(&fs, wl, 0);
 	notify_add(name, &fs, NULL, wl->session, wl->window, NULL);
 }

 void
 notify_session_window(const char *name, struct session *s, struct window *w)
 {
 	struct cmd_find_state	fs;

 	cmd_find_from_session_window(&fs, s, w, 0);
 	notify_add(name, &fs, NULL, s, w, NULL);
 }

 void
 notify_window(const char *name, struct window *w)
 {
 	struct cmd_find_state	fs;

 	cmd_find_from_window(&fs, w, 0);
 	notify_add(name, &fs, NULL, NULL, w, NULL);
 }

 void
 notify_pane(const char *name, struct window_pane *wp)
 {
 	struct cmd_find_state	fs;

 	cmd_find_from_pane(&fs, wp, 0);
 	notify_add(name, &fs, NULL, NULL, NULL, wp);
 }
	/* $OpenBSD$ */

	/*
	* 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 <stdlib.h>
	#include <string.h>

	#include "tmux.h"

	struct notify_entry {
	const char *name;
	struct cmd_find_state fs;
	struct format_tree *formats;

	struct client *client;
	struct session *session;
	struct window *window;
	int pane;
	};

	static struct cmdq_item *
	notify_insert_one_hook(struct cmdq_item item, struct notify_entry ne,
	struct cmd_list cmdlist, struct cmdq_state state)
	{
	struct cmdq_item *new_item;
	char *s;

	if (cmdlist == NULL)
	return (item);
	if (log_get_level() != 0) {
	s = cmd_list_print(cmdlist, 0);
	log_debug("%s: hook %s is: %s", __func__, ne->name, s);
	free(s);
	}
	new_item = cmdq_get_command(cmdlist, state);
	return (cmdq_insert_after(item, new_item));
	}

	static void
	notify_insert_hook(struct cmdq_item item, struct notify_entry ne)
	{
	struct cmd_find_state fs;
	struct options *oo;
	struct cmdq_state *state;
	struct options_entry *o;
	struct options_array_item *a;
	struct cmd_list *cmdlist;
	const char *value;
	struct cmd_parse_result *pr;

	log_debug("%s: inserting hook %s", __func__, ne->name);

	cmd_find_clear_state(&fs, 0);
	if (cmd_find_empty_state(&ne->fs) \|\| !cmd_find_valid_state(&ne->fs))
	cmd_find_from_nothing(&fs, 0);
	else
	cmd_find_copy_state(&fs, &ne->fs);

	if (fs.s == NULL)
	oo = global_s_options;
	else
	oo = fs.s->options;
	o = options_get(oo, ne->name);
	if (o == NULL && fs.wp != NULL) {
	oo = fs.wp->options;
	o = options_get(oo, ne->name);
	}
	if (o == NULL && fs.wl != NULL) {
	oo = fs.wl->window->options;
	o = options_get(oo, ne->name);
	}
	if (o == NULL) {
	log_debug("%s: hook %s not found", __func__, ne->name);
	return;
	}

	state = cmdq_new_state(&fs, NULL, CMDQ_STATE_NOHOOKS);
	cmdq_add_formats(state, ne->formats);

	if (*ne->name == '@') {
	value = options_get_string(oo, ne->name);
	pr = cmd_parse_from_string(value, NULL);
	switch (pr->status) {
	case CMD_PARSE_ERROR:
	log_debug("%s: can't parse hook %s: %s", __func__,
	ne->name, pr->error);
	free(pr->error);
	break;
	case CMD_PARSE_SUCCESS:
	notify_insert_one_hook(item, ne, pr->cmdlist, state);
	break;
	}
	} else {
	a = options_array_first(o);
	while (a != NULL) {
	cmdlist = options_array_item_value(a)->cmdlist;
	item = notify_insert_one_hook(item, ne, cmdlist, state);
	a = options_array_next(a);
	}
	}

	cmdq_free_state(state);
	}

	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, "pane-mode-changed") == 0)
	control_notify_pane_mode_changed(ne->pane);
	if (strcmp(ne->name, "window-layout-changed") == 0)
	control_notify_window_layout_changed(ne->window);
	if (strcmp(ne->name, "window-pane-changed") == 0)
	control_notify_window_pane_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, "client-detached") == 0)
	control_notify_client_detached(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);
	if (strcmp(ne->name, "session-window-changed") == 0)
	control_notify_session_window_changed(ne->session);

	notify_insert_hook(item, ne);

	if (ne->client != NULL)
	server_client_unref(ne->client);
	if (ne->session != NULL)
	session_remove_ref(ne->session, __func__);
	if (ne->window != NULL)
	window_remove_ref(ne->window, __func__);

	if (ne->fs.s != NULL)
	session_remove_ref(ne->fs.s, __func__);

	format_free(ne->formats);
	free((void *)ne->name);
	free(ne);

	return (CMD_RETURN_NORMAL);
	}

	static void
	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 *item;

	item = cmdq_running(NULL);
	if (item != NULL && (cmdq_get_flags(item) & CMDQ_STATE_NOHOOKS))
	return;

	ne = xcalloc(1, sizeof *ne);
	ne->name = xstrdup(name);

	ne->client = c;
	ne->session = s;
	ne->window = w;
	ne->pane = (wp != NULL ? wp->id : -1);

	ne->formats = format_create(NULL, NULL, 0, FORMAT_NOJOBS);
	format_add(ne->formats, "hook", "%s", name);
	if (c != NULL)
	format_add(ne->formats, "hook_client", "%s", c->name);
	if (s != NULL) {
	format_add(ne->formats, "hook_session", "$%u", s->id);
	format_add(ne->formats, "hook_session_name", "%s", s->name);
	}
	if (w != NULL) {
	format_add(ne->formats, "hook_window", "@%u", w->id);
	format_add(ne->formats, "hook_window_name", "%s", w->name);
	}
	if (wp != NULL)
	format_add(ne->formats, "hook_pane", "%%%d", wp->id);
	format_log_debug(ne->formats, __func__);

	if (c != NULL)
	c->references++;
	if (s != NULL)
	session_add_ref(s, __func__);
	if (w != NULL)
	window_add_ref(w, __func__);

	cmd_find_copy_state(&ne->fs, fs);
	if (ne->fs.s != NULL) /* cmd_find_valid_state needs session */
	session_add_ref(ne->fs.s, __func__);

	cmdq_append(NULL, cmdq_get_callback(notify_callback, ne));
	}

	void
	notify_hook(struct cmdq_item item, const char name)
	{
	struct cmd_find_state *target = cmdq_get_target(item);
	struct notify_entry ne;

	memset(&ne, 0, sizeof ne);

	ne.name = name;
	cmd_find_copy_state(&ne.fs, target);

	ne.client = cmdq_get_client(item);
	ne.session = target->s;
	ne.window = target->w;
	ne.pane = (target->wp != NULL ? target->wp->id : -1);

	ne.formats = format_create(NULL, NULL, 0, FORMAT_NOJOBS);
	format_add(ne.formats, "hook", "%s", name);
	format_log_debug(ne.formats, __func__);

	notify_insert_hook(item, &ne);
	format_free(ne.formats);
	}

	void
	notify_client(const char name, struct client c)
	{
	struct cmd_find_state fs;

	cmd_find_from_client(&fs, c, 0);
	notify_add(name, &fs, c, NULL, NULL, NULL);
	}

	void
	notify_session(const char name, struct session s)
	{
	struct cmd_find_state fs;

	if (session_alive(s))
	cmd_find_from_session(&fs, s, 0);
	else
	cmd_find_from_nothing(&fs, 0);
	notify_add(name, &fs, NULL, s, NULL, NULL);
	}

	void
	notify_winlink(const char name, struct winlink wl)
	{
	struct cmd_find_state fs;

	cmd_find_from_winlink(&fs, wl, 0);
	notify_add(name, &fs, NULL, wl->session, wl->window, NULL);
	}

	void
	notify_session_window(const char name, struct session s, struct window *w)
	{
	struct cmd_find_state fs;

	cmd_find_from_session_window(&fs, s, w, 0);
	notify_add(name, &fs, NULL, s, w, NULL);
	}

	void
	notify_window(const char name, struct window w)
	{
	struct cmd_find_state fs;

	cmd_find_from_window(&fs, w, 0);
	notify_add(name, &fs, NULL, NULL, w, NULL);
	}

	void
	notify_pane(const char name, struct window_pane wp)
	{
	struct cmd_find_state fs;

	cmd_find_from_pane(&fs, wp, 0);
	notify_add(name, &fs, NULL, NULL, NULL, wp);
	}