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weechat/src/gui/curses/gui-curses-main.c
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/*
* gui-curses-main.c - main loop for Curses GUI
*
* Copyright (C) 2003-2013 Sebastien 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 <stdio.h>
#include <unistd.h>
#include <string.h>
#include <signal.h>
#include <time.h>
#include "../../core/weechat.h"
#include "../../core/wee-command.h"
#include "../../core/wee-config.h"
#include "../../core/wee-hook.h"
#include "../../core/wee-log.h"
#include "../../core/wee-string.h"
#include "../../core/wee-utf8.h"
#include "../../core/wee-util.h"
#include "../../core/wee-version.h"
#include "../../plugins/plugin.h"
#include "../gui-main.h"
#include "../gui-bar.h"
#include "../gui-bar-item.h"
#include "../gui-bar-window.h"
#include "../gui-buffer.h"
#include "../gui-chat.h"
#include "../gui-color.h"
#include "../gui-cursor.h"
#include "../gui-filter.h"
#include "../gui-input.h"
#include "../gui-layout.h"
#include "../gui-line.h"
#include "../gui-history.h"
#include "../gui-mouse.h"
#include "../gui-nicklist.h"
#include "../gui-window.h"
#include "gui-curses.h"
int gui_reload_config = 0;
int gui_term_cols = 0;
int gui_term_lines = 0;
/*
* Gets a password from user (called on startup, when GUI is not initialized).
*
* The result is stored in "password" with max "size" bytes (including the
* final '\0').
*/
void
gui_main_get_password (const char *prompt1, const char *prompt2,
const char *prompt3,
char *password, int size)
{
int i, ch;
initscr ();
cbreak ();
noecho ();
clear();
mvaddstr (0, 0, prompt1);
mvaddstr (1, 0, prompt2);
mvaddstr (2, 0, prompt3);
mvaddstr (3, 0, "=> ");
refresh ();
memset (password, '\0', size);
i = 0;
while (i < size - 1)
{
ch = getch ();
if (ch == '\n')
break;
if (ch == 127)
{
if (i > 0)
{
i--;
password[i] = '\0';
mvaddstr (3, 3 + i, " ");
move (3, 3 + i);
}
}
else
{
password[i] = ch;
mvaddstr (3, 3 + i, "*");
i++;
}
refresh ();
}
password[i] = '\0';
refresh ();
endwin ();
}
/*
* Pre-initializes GUI (called before gui_init).
*/
void
gui_main_pre_init (int *argc, char **argv[])
{
/* make C compiler happy */
(void) argc;
(void) argv;
/* pre-init colors */
gui_color_pre_init ();
/* init some variables for chat area */
gui_chat_init ();
}
/*
* Initializes GUI.
*/
void
gui_main_init ()
{
struct t_gui_buffer *ptr_buffer;
struct t_gui_bar *ptr_bar;
struct t_gui_bar_window *ptr_bar_win;
char title[256];
initscr ();
if (CONFIG_BOOLEAN(config_look_eat_newline_glitch))
gui_term_set_eat_newline_glitch (0);
curs_set (1);
noecho ();
nodelay (stdscr, TRUE);
raw ();
gui_color_init ();
/* build prefixes according to configuration */
gui_chat_prefix_build ();
refresh ();
gui_term_cols = COLS;
gui_term_lines = LINES;
gui_window_read_terminal_size ();
/* init clipboard buffer */
gui_input_clipboard = NULL;
/* get time length */
gui_chat_time_length = gui_chat_get_time_length ();
/* init bar items */
gui_bar_item_init ();
gui_init_ok = 0;
/* create core buffer */
ptr_buffer = gui_buffer_new (NULL, GUI_BUFFER_MAIN,
NULL, NULL, NULL, NULL);
if (ptr_buffer)
{
gui_init_ok = 1;
ptr_buffer->num_displayed = 1;
/* set short name */
if (!ptr_buffer->short_name)
ptr_buffer->short_name = strdup (GUI_BUFFER_MAIN);
/* set title for core buffer */
snprintf (title, sizeof (title), "WeeChat %s %s - %s",
version_get_version (),
WEECHAT_COPYRIGHT_DATE,
WEECHAT_WEBSITE);
gui_buffer_set_title (ptr_buffer, title);
/* create main window (using full space) */
if (gui_window_new (NULL, ptr_buffer, 0, 0,
gui_term_cols, gui_term_lines, 100, 100))
{
gui_current_window = gui_windows;
if (CONFIG_STRING(config_look_window_title)
&& CONFIG_STRING(config_look_window_title)[0])
{
gui_window_set_title (CONFIG_STRING(config_look_window_title));
}
}
/*
* create bar windows for root bars (they were read from config,
* but no window was created, GUI was not initialized)
*/
for (ptr_bar = gui_bars; ptr_bar; ptr_bar = ptr_bar->next_bar)
{
if ((CONFIG_INTEGER(ptr_bar->options[GUI_BAR_OPTION_TYPE]) == GUI_BAR_TYPE_ROOT)
&& (!ptr_bar->bar_window))
{
gui_bar_window_new (ptr_bar, NULL);
}
}
for (ptr_bar_win = gui_windows->bar_windows;
ptr_bar_win; ptr_bar_win = ptr_bar_win->next_bar_window)
{
gui_bar_window_calculate_pos_size (ptr_bar_win, gui_windows);
gui_bar_window_create_win (ptr_bar_win);
}
}
if (CONFIG_BOOLEAN(config_look_mouse))
gui_mouse_enable ();
else
gui_mouse_disable ();
gui_window_set_bracketed_paste_mode (CONFIG_BOOLEAN(config_look_paste_bracketed));
}
/*
* Callback for system signal SIGQUIT: quits WeeChat.
*/
void
gui_main_signal_sigquit ()
{
log_printf (_("Signal %s received, exiting WeeChat..."),
"SIGQUIT");
hook_signal_send ("quit", WEECHAT_HOOK_SIGNAL_STRING, NULL);
weechat_quit = 1;
}
/*
* Callback for system signal SIGTERM: quits WeeChat.
*/
void
gui_main_signal_sigterm ()
{
log_printf (_("Signal %s received, exiting WeeChat..."),
"SIGTERM");
hook_signal_send ("quit", WEECHAT_HOOK_SIGNAL_STRING, NULL);
weechat_quit = 1;
}
/*
* Callback for system signal SIGHUP: reloads WeeChat configuration.
*/
void
gui_main_signal_sighup ()
{
/*
* SIGHUP signal is received when terminal is closed (exit of WeeChat
* without using /quit command), that's why we set only flag to reload
* configuration files later (when terminal is closed, config files are NOT
* reloaded, but they are if signal SIGHUP is sent to WeeChat by user)
*/
gui_reload_config = 1;
}
/*
* Callback for system signal SIGWINCH: refreshes screen.
*/
void
gui_main_signal_sigwinch ()
{
gui_window_ask_refresh (2);
}
/*
* Displays infos about ncurses lib.
*/
void
gui_main_debug_libs ()
{
gui_chat_printf (NULL, " ncurses: v%s (patch %d)",
NCURSES_VERSION, NCURSES_VERSION_PATCH);
}
/*
* Refreshs for windows, buffers, bars.
*/
void
gui_main_refreshs ()
{
struct t_gui_window *ptr_win;
struct t_gui_buffer *ptr_buffer;
struct t_gui_bar *ptr_bar;
/* refresh color buffer if needed */
if (gui_color_buffer_refresh_needed)
{
gui_color_buffer_display ();
gui_color_buffer_refresh_needed = 0;
}
/* compute max length for prefix/buffer if needed */
for (ptr_buffer = gui_buffers; ptr_buffer;
ptr_buffer = ptr_buffer->next_buffer)
{
/* compute buffer/prefix max length for own_lines */
if (ptr_buffer->own_lines)
{
if (ptr_buffer->own_lines->buffer_max_length_refresh)
{
gui_line_compute_buffer_max_length (ptr_buffer,
ptr_buffer->own_lines);
}
if (ptr_buffer->own_lines->prefix_max_length_refresh)
gui_line_compute_prefix_max_length (ptr_buffer->own_lines);
}
/* compute buffer/prefix max length for mixed_lines */
if (ptr_buffer->mixed_lines)
{
if (ptr_buffer->mixed_lines->buffer_max_length_refresh)
{
gui_line_compute_buffer_max_length (ptr_buffer,
ptr_buffer->mixed_lines);
}
if (ptr_buffer->mixed_lines->prefix_max_length_refresh)
gui_line_compute_prefix_max_length (ptr_buffer->mixed_lines);
}
}
/* refresh window if needed */
if (gui_window_refresh_needed)
{
gui_window_refresh_screen ((gui_window_refresh_needed > 1) ? 1 : 0);
gui_window_refresh_needed = 0;
}
/* refresh bars if needed */
for (ptr_bar = gui_bars; ptr_bar; ptr_bar = ptr_bar->next_bar)
{
if (ptr_bar->bar_refresh_needed)
{
gui_bar_draw (ptr_bar);
}
}
/* refresh window if needed (if asked during refresh of bars) */
if (gui_window_refresh_needed)
{
gui_window_refresh_screen ((gui_window_refresh_needed > 1) ? 1 : 0);
gui_window_refresh_needed = 0;
}
/* refresh windows if needed */
for (ptr_win = gui_windows; ptr_win; ptr_win = ptr_win->next_window)
{
if (ptr_win->refresh_needed)
{
gui_window_switch_to_buffer (ptr_win, ptr_win->buffer, 0);
gui_window_redraw_buffer (ptr_win->buffer);
ptr_win->refresh_needed = 0;
}
}
/* refresh chat buffers if needed */
for (ptr_buffer = gui_buffers; ptr_buffer;
ptr_buffer = ptr_buffer->next_buffer)
{
if (ptr_buffer->chat_refresh_needed)
{
gui_chat_draw (ptr_buffer,
(ptr_buffer->chat_refresh_needed) > 1 ? 1 : 0);
}
}
/* refresh bars if needed */
for (ptr_bar = gui_bars; ptr_bar; ptr_bar = ptr_bar->next_bar)
{
if (ptr_bar->bar_refresh_needed)
{
gui_bar_draw (ptr_bar);
}
}
/* move cursor (for cursor mode) */
if (gui_cursor_mode)
gui_window_move_cursor ();
}
/*
* Main loop for WeeChat with ncurses GUI.
*/
void
gui_main_loop ()
{
struct t_hook *hook_fd_keyboard;
struct timeval tv_timeout;
fd_set read_fds, write_fds, except_fds;
int max_fd;
int ready;
/* catch SIGTERM signal: quit program */
util_catch_signal (SIGTERM, &gui_main_signal_sigterm);
util_catch_signal (SIGQUIT, &gui_main_signal_sigquit);
/* catch SIGHUP signal: reload configuration */
util_catch_signal (SIGHUP, &gui_main_signal_sighup);
/* catch SIGWINCH signal: redraw screen */
util_catch_signal (SIGWINCH, &gui_main_signal_sigwinch);
/* hook stdin (read keyboard) */
hook_fd_keyboard = hook_fd (NULL, STDIN_FILENO, 1, 0, 0,
&gui_key_read_cb, NULL);
gui_window_ask_refresh (1);
while (!weechat_quit)
{
/* reload config, if SIGHUP received */
if (gui_reload_config)
{
gui_reload_config = 0;
log_printf (_("Signal SIGHUP received, reloading configuration "
"files"));
command_reload (NULL, NULL, 0, NULL, NULL);
}
/* execute hook timers */
hook_timer_exec ();
/* auto reset of color pairs */
if (gui_color_pairs_auto_reset)
{
gui_color_reset_pairs ();
gui_color_pairs_auto_reset_last = time (NULL);
gui_color_pairs_auto_reset = 0;
gui_color_pairs_auto_reset_pending = 1;
}
gui_main_refreshs ();
if (gui_window_refresh_needed)
gui_main_refreshs ();
gui_color_pairs_auto_reset_pending = 0;
/* wait for keyboard or network activity */
FD_ZERO (&read_fds);
FD_ZERO (&write_fds);
FD_ZERO (&except_fds);
max_fd = hook_fd_set (&read_fds, &write_fds, &except_fds);
hook_timer_time_to_next (&tv_timeout);
ready = select (max_fd + 1, &read_fds, &write_fds, &except_fds,
&tv_timeout);
if (ready > 0)
{
hook_fd_exec (&read_fds, &write_fds, &except_fds);
}
}
/* remove keyboard hook */
unhook (hook_fd_keyboard);
}
/*
* Ends GUI.
*
* Argument "clean_exit" is 0 when WeeChat is crashing (we don't clean objects
* because WeeChat can crash again during this cleanup...).
*/
void
gui_main_end (int clean_exit)
{
if (clean_exit)
{
/*
* final refreshs, to see messages just before exiting
* (if we are upgrading, don't refresh anything!)
*/
if (!weechat_upgrading)
{
gui_main_refreshs ();
if (gui_window_refresh_needed)
gui_main_refreshs ();
}
/* disable bracketed paste mode */
gui_window_set_bracketed_paste_mode (0);
/* disable mouse */
gui_mouse_disable ();
/* remove bar items and bars */
gui_bar_item_end ();
gui_bar_free_all ();
/* remove filters */
gui_filter_free_all ();
/* free clipboard buffer */
if (gui_input_clipboard)
free (gui_input_clipboard);
/* delete layouts */
gui_layout_remove_all ();
/* delete all windows */
while (gui_windows)
{
gui_window_free (gui_windows);
}
gui_window_tree_free (&gui_windows_tree);
/* delete all buffers */
while (gui_buffers)
{
gui_buffer_close (gui_buffers);
}
gui_init_ok = 0;
/* delete global history */
gui_history_global_free ();
/* reset title */
if (CONFIG_STRING(config_look_window_title)
&& CONFIG_STRING(config_look_window_title)[0])
{
gui_window_set_title (NULL);
}
/* end color */
gui_color_end ();
/* free some variables used for chat area */
gui_chat_end ();
}
/* end of Curses output */
refresh ();
endwin ();
}
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