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/*
* wee-input.c - default input callback for buffers
*
* Copyright (C) 2003-2014 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 <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include "weechat.h"
#include "wee-input.h"
#include "wee-config.h"
#include "wee-hook.h"
#include "wee-string.h"
#include "wee-utf8.h"
#include "../gui/gui-buffer.h"
#include "../gui/gui-chat.h"
#include "../gui/gui-filter.h"
#include "../gui/gui-window.h"
#include "../plugins/plugin.h"
/*
* Sends data to buffer input callback.
*/
void
input_exec_data (struct t_gui_buffer *buffer, const char *data)
{
if (buffer->input_callback)
{
(void)(buffer->input_callback) (buffer->input_callback_data,
buffer,
data);
}
else
gui_chat_printf (buffer,
_("%sYou can not write text in this "
"buffer"),
gui_chat_prefix[GUI_CHAT_PREFIX_ERROR]);
}
/*
* Executes a command.
*/
void
input_exec_command (struct t_gui_buffer *buffer,
int any_plugin,
struct t_weechat_plugin *plugin,
const char *string)
{
char *command, *command_name, *pos;
if ((!string) || (!string[0]))
return;
command = strdup (string);
if (!command)
return;
/* ignore spaces at the end of command */
pos = &command[strlen (command) - 1];
if (pos[0] == ' ')
{
while ((pos > command) && (pos[0] == ' '))
pos--;
pos[1] = '\0';
}
/* extract command name */
pos = strchr (command, ' ');
command_name = (pos) ?
string_strndup (command, pos - command) : strdup (command);
if (!command_name)
{
free (command);
return;
}
/* execute command */
switch (hook_command_exec (buffer, any_plugin, plugin, command))
{
case HOOK_COMMAND_EXEC_OK:
/* command hooked, OK (executed) */
break;
case HOOK_COMMAND_EXEC_ERROR:
/* command hooked, error */
gui_chat_printf_date_tags (NULL, 0, GUI_FILTER_TAG_NO_FILTER,
_("%sError with command \"%s\" (help on "
"command: /help %s)"),
gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
command, command_name + 1);
break;
case HOOK_COMMAND_EXEC_NOT_FOUND:
/*
* command not found: if unknown commands are accepted by this
* buffer, just send input text as data to buffer,
* otherwise display error
*/
if (buffer->input_get_unknown_commands)
{
input_exec_data (buffer, string);
}
else
{
gui_chat_printf_date_tags (NULL, 0, GUI_FILTER_TAG_NO_FILTER,
_("%sError: unknown command \"%s\" "
"(type /help for help)"),
gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
command_name);
}
break;
case HOOK_COMMAND_EXEC_AMBIGUOUS_PLUGINS:
/* command is ambiguous (exists for other plugins) */
gui_chat_printf_date_tags (NULL, 0, GUI_FILTER_TAG_NO_FILTER,
_("%sError: ambiguous command \"%s\": "
"it exists in many plugins and not in "
"\"%s\" plugin"),
gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
command_name,
plugin_get_name (plugin));
break;
case HOOK_COMMAND_EXEC_AMBIGUOUS_INCOMPLETE:
/*
* command is ambiguous (incomplete command and multiple commands
* start with this name)
*/
gui_chat_printf_date_tags (NULL, 0, GUI_FILTER_TAG_NO_FILTER,
_("%sError: incomplete command \"%s\" "
"and multiple commands start with "
"this name"),
gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
command_name);
break;
case HOOK_COMMAND_EXEC_RUNNING:
/* command is running */
gui_chat_printf_date_tags (NULL, 0, GUI_FILTER_TAG_NO_FILTER,
_("%sError: too many calls to command "
"\"%s\" (looping)"),
gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
command_name);
break;
default:
break;
}
free (command);
free (command_name);
}
/*
* Reads user input and sends data to buffer's callback.
*/
void
input_data (struct t_gui_buffer *buffer, const char *data)
{
char *pos, *buf, str_buffer[128], *new_data, *buffer_full_name;
const char *ptr_data, *ptr_data_for_buffer;
int length, char_size, first_command;
if (!buffer || !gui_buffer_valid (buffer)
|| !data || !data[0] || (data[0] == '\r') || (data[0] == '\n'))
{
return;
}
buffer_full_name = strdup (buffer->full_name);
if (!buffer_full_name)
return;
/* execute modifier "input_text_for_buffer" */
snprintf (str_buffer, sizeof (str_buffer),
"0x%lx", (long unsigned int)buffer);
new_data = hook_modifier_exec (NULL,
"input_text_for_buffer",
str_buffer,
data);
/* data was dropped? */
if (new_data && !new_data[0])
goto end;
first_command = 1;
ptr_data = (new_data) ? new_data : data;
while (ptr_data && ptr_data[0])
{
/*
* if the buffer pointer is not valid any more (or if it's another
* buffer), use the current buffer for the next command
*/
if (!first_command
&& (!gui_buffer_valid (buffer)
|| (strcmp (buffer->full_name, buffer_full_name) != 0)))
{
if (!gui_current_window || !gui_current_window->buffer)
break;
buffer = gui_current_window->buffer;
free (buffer_full_name);
buffer_full_name = strdup (buffer->full_name);
if (!buffer_full_name)
break;
}
pos = strchr (ptr_data, '\n');
if (pos)
pos[0] = '\0';
ptr_data_for_buffer = string_input_for_buffer (ptr_data);
if (ptr_data_for_buffer)
{
/*
* input string is NOT a command, send it to buffer input
* callback
*/
if (string_is_command_char (ptr_data_for_buffer))
{
char_size = utf8_char_size (ptr_data_for_buffer);
length = strlen (ptr_data_for_buffer) + char_size + 1;
buf = malloc (length);
if (buf)
{
memcpy (buf, ptr_data_for_buffer, char_size);
snprintf (buf + char_size, length - char_size,
"%s", ptr_data_for_buffer);
input_exec_data (buffer, buf);
free (buf);
}
}
else
input_exec_data (buffer, ptr_data_for_buffer);
}
else
{
/* input string is a command */
input_exec_command (buffer, 1, buffer->plugin, ptr_data);
}
if (pos)
{
pos[0] = '\n';
ptr_data = pos + 1;
}
else
ptr_data = NULL;
first_command = 0;
}
end:
if (new_data)
free (new_data);
if (buffer_full_name)
free (buffer_full_name);
}
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