Adding upstream version 3.3a.upstream/3.3a

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 300 insertions, 0 deletions

diff --git a/notify.c b/notify.c
new file mode 100644
index 0000000..8525585
--- /dev/null
+++ b/notify.c
@@ -0,0 +1,300 @@
+/* $OpenBSD$ */
+
+/*
+ * 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);
+}