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/*
* wee-hook-focus.c - WeeChat focus hook
*
* Copyright (C) 2003-2019 Sébastien Helleu <flashcode@flashtux.org>
*
* This file is part of WeeChat, the extensible chat client.
*
* WeeChat is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* WeeChat is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with WeeChat. If not, see <https://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include "../weechat.h"
#include "../wee-hashtable.h"
#include "../wee-hook.h"
#include "../wee-infolist.h"
#include "../wee-log.h"
#include "../wee-string.h"
/*
* Hooks a focus.
*
* Returns pointer to new hook, NULL if error.
*/
struct t_hook *
hook_focus (struct t_weechat_plugin *plugin,
const char *area,
t_hook_callback_focus *callback,
const void *callback_pointer,
void *callback_data)
{
struct t_hook *new_hook;
struct t_hook_focus *new_hook_focus;
int priority;
const char *ptr_area;
if (!area || !area[0] || !callback)
return NULL;
new_hook = malloc (sizeof (*new_hook));
if (!new_hook)
return NULL;
new_hook_focus = malloc (sizeof (*new_hook_focus));
if (!new_hook_focus)
{
free (new_hook);
return NULL;
}
hook_get_priority_and_name (area, &priority, &ptr_area);
hook_init_data (new_hook, plugin, HOOK_TYPE_FOCUS, priority,
callback_pointer, callback_data);
new_hook->hook_data = new_hook_focus;
new_hook_focus->callback = callback;
new_hook_focus->area = strdup ((ptr_area) ? ptr_area : area);
hook_add_to_list (new_hook);
return new_hook;
}
/*
* Adds keys of a hashtable into another.
*/
void
hook_focus_hashtable_map_cb (void *data,
struct t_hashtable *hashtable,
const void *key, const void *value)
{
struct t_hashtable *hashtable1;
/* make C compiler happy */
(void) hashtable;
hashtable1 = (struct t_hashtable *)data;
if (hashtable1 && key && value)
hashtable_set (hashtable1, (const char *)key, (const char *)value);
}
/*
* Adds keys of a hashtable into another (adding suffix "2" to keys).
*/
void
hook_focus_hashtable_map2_cb (void *data,
struct t_hashtable *hashtable,
const void *key, const void *value)
{
struct t_hashtable *hashtable1;
int length;
char *key2;
/* make C compiler happy */
(void) hashtable;
hashtable1 = (struct t_hashtable *)data;
length = strlen ((const char *)key) + 1 + 1;
key2 = malloc (length);
if (key2)
{
snprintf (key2, length, "%s2", (const char *)key);
if (hashtable1 && key && value)
hashtable_set (hashtable1, key2, (const char *)value);
free (key2);
}
}
/*
* Gets data for focus on (x,y) on screen.
*
* Argument hashtable_focus2 is not NULL only for a mouse gesture (it's for
* point where mouse button has been released).
*/
struct t_hashtable *
hook_focus_get_data (struct t_hashtable *hashtable_focus1,
struct t_hashtable *hashtable_focus2)
{
struct t_hook *ptr_hook, *next_hook;
struct t_hashtable *hashtable1, *hashtable2, *hashtable_ret;
const char *focus1_chat, *focus1_bar_item_name, *keys;
char **list_keys, *new_key;
int num_keys, i, length, focus1_is_chat;
if (!hashtable_focus1)
return NULL;
focus1_chat = hashtable_get (hashtable_focus1, "_chat");
focus1_is_chat = (focus1_chat && (strcmp (focus1_chat, "1") == 0));
focus1_bar_item_name = hashtable_get (hashtable_focus1, "_bar_item_name");
hashtable1 = hashtable_dup (hashtable_focus1);
if (!hashtable1)
return NULL;
hashtable2 = (hashtable_focus2) ? hashtable_dup (hashtable_focus2) : NULL;
hook_exec_start ();
ptr_hook = weechat_hooks[HOOK_TYPE_FOCUS];
while (ptr_hook)
{
next_hook = ptr_hook->next_hook;
if (!ptr_hook->deleted
&& !ptr_hook->running
&& ((focus1_is_chat
&& (strcmp (HOOK_FOCUS(ptr_hook, area), "chat") == 0))
|| (focus1_bar_item_name && focus1_bar_item_name[0]
&& (strcmp (HOOK_FOCUS(ptr_hook, area), focus1_bar_item_name) == 0))))
{
/* run callback for focus #1 */
ptr_hook->running = 1;
hashtable_ret = (HOOK_FOCUS(ptr_hook, callback))
(ptr_hook->callback_pointer,
ptr_hook->callback_data,
hashtable1);
ptr_hook->running = 0;
if (hashtable_ret)
{
if (hashtable_ret != hashtable1)
{
/*
* add keys of hashtable_ret into hashtable1
* and destroy it
*/
hashtable_map (hashtable_ret,
&hook_focus_hashtable_map_cb,
hashtable1);
hashtable_free (hashtable_ret);
}
}
/* run callback for focus #2 */
if (hashtable2)
{
ptr_hook->running = 1;
hashtable_ret = (HOOK_FOCUS(ptr_hook, callback))
(ptr_hook->callback_pointer,
ptr_hook->callback_data,
hashtable2);
ptr_hook->running = 0;
if (hashtable_ret)
{
if (hashtable_ret != hashtable2)
{
/*
* add keys of hashtable_ret into hashtable2
* and destroy it
*/
hashtable_map (hashtable_ret,
&hook_focus_hashtable_map_cb,
hashtable2);
hashtable_free (hashtable_ret);
}
}
}
}
ptr_hook = next_hook;
}
if (hashtable2)
{
hashtable_map (hashtable2,
&hook_focus_hashtable_map2_cb, hashtable1);
hashtable_free (hashtable2);
}
else
{
keys = hashtable_get_string (hashtable1, "keys");
if (keys)
{
list_keys = string_split (keys, ",", 0, 0, &num_keys);
if (list_keys)
{
for (i = 0; i < num_keys; i++)
{
length = strlen (list_keys[i]) + 1 + 1;
new_key = malloc (length);
if (new_key)
{
snprintf (new_key, length, "%s2", list_keys[i]);
hashtable_set (hashtable1, new_key,
hashtable_get (hashtable1,
list_keys[i]));
free (new_key);
}
}
string_free_split (list_keys);
}
}
}
hook_exec_end ();
return hashtable1;
}
/*
* Frees data in a focus hook.
*/
void
hook_focus_free_data (struct t_hook *hook)
{
if (!hook || !hook->hook_data)
return;
if (HOOK_FOCUS(hook, area))
{
free (HOOK_FOCUS(hook, area));
HOOK_FOCUS(hook, area) = NULL;
}
free (hook->hook_data);
hook->hook_data = NULL;
}
/*
* Adds focus hook data in the infolist item.
*
* Returns:
* 1: OK
* 0: error
*/
int
hook_focus_add_to_infolist (struct t_infolist_item *item,
struct t_hook *hook)
{
if (!item || !hook || !hook->hook_data)
return 0;
if (!infolist_new_var_pointer (item, "callback", HOOK_FOCUS(hook, callback)))
return 0;
if (!infolist_new_var_string (item, "area", HOOK_FOCUS(hook, area)))
return 0;
return 1;
}
/*
* Prints focus hook data in WeeChat log file (usually for crash dump).
*/
void
hook_focus_print_log (struct t_hook *hook)
{
if (!hook || !hook->hook_data)
return;
log_printf (" focus data:");
log_printf (" callback. . . . . . . : 0x%lx", HOOK_FOCUS(hook, callback));
log_printf (" area. . . . . . . . . : '%s'", HOOK_FOCUS(hook, area));
}
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