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/*
* wee-hook-completion.c - WeeChat completion hook
*
* Copyright (C) 2003-2024 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-hook.h"
#include "../wee-infolist.h"
#include "../wee-log.h"
#include "../wee-string.h"
#include "../../gui/gui-completion.h"
/*
* Returns description of hook.
*
* Note: result must be freed after use.
*/
char *
hook_completion_get_description (struct t_hook *hook)
{
return strdup (HOOK_COMPLETION(hook, completion_item));
}
/*
* Hooks a completion.
*
* Returns pointer to new hook, NULL if error.
*/
struct t_hook *
hook_completion (struct t_weechat_plugin *plugin, const char *completion_item,
const char *description,
t_hook_callback_completion *callback,
const void *callback_pointer,
void *callback_data)
{
struct t_hook *new_hook;
struct t_hook_completion *new_hook_completion;
int priority;
const char *ptr_completion_item;
if (!completion_item || !completion_item[0]
|| strchr (completion_item, ' ') || !callback)
return NULL;
new_hook = malloc (sizeof (*new_hook));
if (!new_hook)
return NULL;
new_hook_completion = malloc (sizeof (*new_hook_completion));
if (!new_hook_completion)
{
free (new_hook);
return NULL;
}
string_get_priority_and_name (completion_item,
&priority, &ptr_completion_item,
HOOK_PRIORITY_DEFAULT);
hook_init_data (new_hook, plugin, HOOK_TYPE_COMPLETION, priority,
callback_pointer, callback_data);
new_hook->hook_data = new_hook_completion;
new_hook_completion->callback = callback;
new_hook_completion->completion_item = strdup ((ptr_completion_item) ?
ptr_completion_item : completion_item);
new_hook_completion->description = strdup ((description) ?
description : "");
hook_add_to_list (new_hook);
return new_hook;
}
/*
* Executes a completion hook.
*/
void
hook_completion_exec (struct t_weechat_plugin *plugin,
const char *completion_item,
struct t_gui_buffer *buffer,
struct t_gui_completion *completion)
{
struct t_hook *ptr_hook, *next_hook;
struct t_hook_exec_cb hook_exec_cb;
const char *pos;
char *item;
/* make C compiler happy */
(void) plugin;
if (!weechat_hooks[HOOK_TYPE_COMPLETION])
return;
hook_exec_start ();
pos = strchr (completion_item, ':');
item = (pos) ?
string_strndup (completion_item, pos - completion_item) :
strdup (completion_item);
if (!item)
return;
ptr_hook = weechat_hooks[HOOK_TYPE_COMPLETION];
while (ptr_hook)
{
next_hook = ptr_hook->next_hook;
if (!ptr_hook->deleted
&& !ptr_hook->running
&& (strcmp (HOOK_COMPLETION(ptr_hook, completion_item), item) == 0))
{
hook_callback_start (ptr_hook, &hook_exec_cb);
(void) (HOOK_COMPLETION(ptr_hook, callback))
(ptr_hook->callback_pointer,
ptr_hook->callback_data,
completion_item,
buffer,
completion);
hook_callback_end (ptr_hook, &hook_exec_cb);
}
ptr_hook = next_hook;
}
free (item);
hook_exec_end ();
}
/*
* Frees data in a completion hook.
*/
void
hook_completion_free_data (struct t_hook *hook)
{
if (!hook || !hook->hook_data)
return;
if (HOOK_COMPLETION(hook, completion_item))
{
free (HOOK_COMPLETION(hook, completion_item));
HOOK_COMPLETION(hook, completion_item) = NULL;
}
if (HOOK_COMPLETION(hook, description))
{
free (HOOK_COMPLETION(hook, description));
HOOK_COMPLETION(hook, description) = NULL;
}
free (hook->hook_data);
hook->hook_data = NULL;
}
/*
* Adds completion hook data in the infolist item.
*
* Returns:
* 1: OK
* 0: error
*/
int
hook_completion_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_COMPLETION(hook, callback)))
return 0;
if (!infolist_new_var_string (item, "completion_item", HOOK_COMPLETION(hook, completion_item)))
return 0;
if (!infolist_new_var_string (item, "description", HOOK_COMPLETION(hook, description)))
return 0;
if (!infolist_new_var_string (item, "description_nls",
(HOOK_COMPLETION(hook, description)
&& HOOK_COMPLETION(hook, description)[0]) ?
_(HOOK_COMPLETION(hook, description)) : ""))
return 0;
return 1;
}
/*
* Prints completion hook data in WeeChat log file (usually for crash dump).
*/
void
hook_completion_print_log (struct t_hook *hook)
{
if (!hook || !hook->hook_data)
return;
log_printf (" completion data:");
log_printf (" callback. . . . . . . : 0x%lx", HOOK_COMPLETION(hook, callback));
log_printf (" completion_item . . . : '%s'", HOOK_COMPLETION(hook, completion_item));
log_printf (" description . . . . . : '%s'", HOOK_COMPLETION(hook, description));
}
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