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/*
* Copyright (C) 2003-2011 Sebastien Helleu <flashcode@flashtux.org>
* Copyright (C) 2005 Emmanuel Bouthenot <kolter@openics.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 <http://www.gnu.org/licenses/>.
*/
/*
* gui-history.c: memorize commands or text for buffers (used by all GUI)
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <stddef.h>
#include <string.h>
#include "../core/weechat.h"
#include "../core/wee-config.h"
#include "../core/wee-hdata.h"
#include "../core/wee-hook.h"
#include "../core/wee-infolist.h"
#include "../core/wee-string.h"
#include "../plugins/plugin.h"
#include "gui-history.h"
#include "gui-buffer.h"
struct t_gui_history *history_global = NULL;
struct t_gui_history *last_history_global = NULL;
struct t_gui_history *history_global_ptr = NULL;
int num_history_global = 0;
/*
* gui_history_buffer_add: add a text/command to buffer's history
*/
void
gui_history_buffer_add (struct t_gui_buffer *buffer, const char *string)
{
struct t_gui_history *new_history, *ptr_history;
if (!string)
return;
if (!buffer->history
|| (buffer->history
&& (strcmp (buffer->history->text, string) != 0)))
{
new_history = malloc (sizeof (*new_history));
if (new_history)
{
new_history->text = strdup (string);
if (buffer->history)
buffer->history->prev_history = new_history;
else
buffer->last_history = new_history;
new_history->next_history = buffer->history;
new_history->prev_history = NULL;
buffer->history = new_history;
buffer->num_history++;
/* remove one command if necessary */
if ((CONFIG_INTEGER(config_history_max_commands) > 0)
&& (buffer->num_history > CONFIG_INTEGER(config_history_max_commands)))
{
ptr_history = buffer->last_history->prev_history;
if (buffer->ptr_history == buffer->last_history)
buffer->ptr_history = ptr_history;
((buffer->last_history)->prev_history)->next_history = NULL;
if (buffer->last_history->text)
free (buffer->last_history->text);
free (buffer->last_history);
buffer->last_history = ptr_history;
buffer->num_history++;
}
}
}
}
/*
* history_global_add: add a text/command to global history
*/
void
gui_history_global_add (const char *string)
{
struct t_gui_history *new_history, *ptr_history;
if (!string)
return;
if (!history_global
|| (history_global
&& (strcmp (history_global->text, string) != 0)))
{
new_history = malloc (sizeof (*new_history));
if (new_history)
{
new_history->text = strdup (string);
if (history_global)
history_global->prev_history = new_history;
else
last_history_global = new_history;
new_history->next_history = history_global;
new_history->prev_history = NULL;
history_global = new_history;
num_history_global++;
/* remove one command if necessary */
if ((CONFIG_INTEGER(config_history_max_commands) > 0)
&& (num_history_global > CONFIG_INTEGER(config_history_max_commands)))
{
ptr_history = last_history_global->prev_history;
if (history_global_ptr == last_history_global)
history_global_ptr = ptr_history;
(last_history_global->prev_history)->next_history = NULL;
if (last_history_global->text)
free (last_history_global->text);
free (last_history_global);
last_history_global = ptr_history;
num_history_global--;
}
}
}
}
/*
* gui_history_add: add a text/command to buffer's history + global history
*/
void
gui_history_add (struct t_gui_buffer *buffer, const char *string)
{
char *string2, str_buffer[128];
snprintf (str_buffer, sizeof (str_buffer),
"0x%lx", (long unsigned int)(buffer));
string2 = hook_modifier_exec (NULL, "history_add", str_buffer, string);
/*
* if message was NOT dropped by modifier, then we add it to buffer and
* global history
*/
if (!string2 || string2[0])
{
gui_history_buffer_add (buffer, (string2) ? string2 : string);
gui_history_global_add ((string2) ? string2 : string);
}
if (string2)
free (string2);
}
/*
* gui_history_global_free: free global history
*/
void
gui_history_global_free ()
{
struct t_gui_history *ptr_history;
while (history_global)
{
ptr_history = history_global->next_history;
if (history_global->text)
free (history_global->text);
free (history_global);
history_global = ptr_history;
}
history_global = NULL;
last_history_global = NULL;
history_global_ptr = NULL;
num_history_global = 0;
}
/*
* gui_history_buffer_free: free history for a buffer
*/
void
gui_history_buffer_free (struct t_gui_buffer *buffer)
{
struct t_gui_history *ptr_history;
while (buffer->history)
{
ptr_history = buffer->history->next_history;
if (buffer->history->text)
free (buffer->history->text);
free (buffer->history);
buffer->history = ptr_history;
}
buffer->history = NULL;
buffer->last_history = NULL;
buffer->ptr_history = NULL;
buffer->num_history = 0;
}
/*
* gui_history_hdata_history_cb: return hdata for history
*/
struct t_hdata *
gui_history_hdata_history_cb (void *data, const char *hdata_name)
{
struct t_hdata *hdata;
/* make C compiler happy */
(void) data;
hdata = hdata_new (NULL, hdata_name, "prev_history", "next_history");
if (hdata)
{
HDATA_VAR(struct t_gui_history, text, STRING, NULL);
HDATA_VAR(struct t_gui_history, prev_history, POINTER, hdata_name);
HDATA_VAR(struct t_gui_history, next_history, POINTER, hdata_name);
}
return hdata;
}
/*
* gui_history_add_to_infolist: add history of commands in an infolist
* if buffer is NULL, global history is returned
* return 1 if ok, 0 if error
*/
int
gui_history_add_to_infolist (struct t_infolist *infolist,
struct t_gui_history *history)
{
struct t_infolist_item *ptr_item;
if (!infolist || !history)
return 0;
ptr_item = infolist_new_item (infolist);
if (!ptr_item)
return 0;
if (!infolist_new_var_string (ptr_item, "text", history->text))
return 0;
return 1;
}
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