示例#1
0
/* Checks whether views should be checked against external changes.  Returns
 * non-zero is so, otherwise zero is returned. */
static int
should_check_views_for_changes(void)
{
	return !is_status_bar_multiline()
	    && !is_in_menu_like_mode()
	    && NONE(vle_mode_is, CMDLINE_MODE, MSG_MODE);
}
示例#2
0
/* Performs postponed updates for the view, if any.  Returns non-zero if
 * something was indeed updated, and zero otherwise. */
static int
process_scheduled_updates_of_view(FileView *view)
{
	if(!window_shows_dirlist(view))
	{
		return 0;
	}

	switch(ui_view_query_scheduled_event(view))
	{
		case UUE_NONE:
			/* Nothing to do. */
			return 0;
		case UUE_REDRAW:
			redraw_view_imm(view);
			return 1;
		case UUE_RELOAD:
			load_saving_pos(view, 1);
			if(view == curr_view && !is_status_bar_multiline())
			{
				ui_ruler_update(view);
			}
			return 1;
		case UUE_FULL_RELOAD:
			load_saving_pos(view, 0);
			return 1;

		default:
			assert(0 && "Unexpected type of scheduled UI event.");
			return 0;
	}
}
示例#3
0
文件: main_loop.c 项目: ychaim/vifm
/* Checks whether views should be checked against external changes.  Returns
 * non-zero is so, otherwise zero is returned. */
static int
should_check_views_for_changes(void)
{
	return !is_status_bar_multiline()
	    && !is_in_menu_like_mode()
	    && get_mode() != CMDLINE_MODE;
}
示例#4
0
static int
read_char(WINDOW *win, wint_t *c, int timeout)
{
	static const int T = 150;
	static const int IPC_F = 10;

	int i;
	int result = ERR;

	for(i = 0; i <= timeout/T; i++)
	{
		int j;

		if(is_redraw_scheduled())
		{
			modes_redraw();
		}

		if(!is_status_bar_multiline() && !is_in_menu_like_mode() &&
				get_mode() != CMDLINE_MODE)
		{
			check_if_filelists_have_changed(curr_view);
			if(curr_stats.number_of_windows != 1 && !curr_stats.view)
				check_if_filelists_have_changed(other_view);
		}

		check_background_jobs();

		for(j = 0; j < IPC_F; j++)
		{
			ipc_check();
			wtimeout(win, MIN(T, timeout)/IPC_F);

			if((result = wget_wch(win, c)) != ERR)
				break;

			if(is_redraw_scheduled())
			{
				modes_redraw();
			}
		}
		if(result != ERR)
			break;

		timeout -= T;
	}
	return result;
}
示例#5
0
void
modes_post(void)
{
	if(ANY(vle_mode_is, CMDLINE_MODE, SORT_MODE, CHANGE_MODE, ATTR_MODE))
	{
		return;
	}
	else if(vle_mode_is(VIEW_MODE))
	{
		view_post();
		return;
	}
	else if(is_in_menu_like_mode())
	{
		menu_post();
		return;
	}

	update_screen(curr_stats.need_update);

	if(curr_stats.save_msg)
	{
		status_bar_message(NULL);
	}

	if(!vle_mode_is(FILE_INFO_MODE) && curr_view->list_rows > 0)
	{
		if(!is_status_bar_multiline())
		{
			update_stat_window(curr_view);
			ui_ruler_update(curr_view);
		}
	}

	modes_statusbar_update();
}
示例#6
0
void
event_loop(const int *quit)
{
	/* TODO: refactor this function event_loop(). */

	LOG_FUNC_ENTER;

	const wchar_t *const prev_input_buf = curr_input_buf;
	const size_t *const prev_input_buf_pos = curr_input_buf_pos;

	wchar_t input_buf[128];
	size_t input_buf_pos;

	int last_result = 0;
	int wait_for_enter = 0;
	int timeout = cfg.timeout_len;

	input_buf[0] = L'\0';
	input_buf_pos = 0;
	curr_input_buf = &input_buf[0];
	curr_input_buf_pos = &input_buf_pos;

	while(!*quit)
	{
		wint_t c;
		size_t counter;
		int got_input;

		if(!ensure_term_is_ready())
		{
			wait_for_enter = 0;
			continue;
		}

		lwin.user_selection = 1;
		rwin.user_selection = 1;

		modes_pre();

		/* Waits for timeout then skips if no keypress.  Short-circuit if we're not
		 * waiting for the next key after timeout. */
		do
		{
			modes_periodic();

			check_background_jobs();

			got_input = get_char_async_loop(status_bar, &c, timeout) != ERR;
			if(!got_input && input_buf_pos == 0)
			{
				timeout = cfg.timeout_len;
				continue;
			}
			break;
		}
		while(1);

		/* Ensure that current working directory is set correctly (some pieces of
		 * code rely on this). */
		(void)vifm_chdir(flist_get_dir(curr_view));

		if(got_input)
		{
			if(wait_for_enter)
			{
				wait_for_enter = 0;
				curr_stats.save_msg = 0;
				clean_status_bar();
				if(c == L'\x0d')
				{
					continue;
				}
			}

			if(c == L'\x1a') /* Ctrl-Z */
			{
				def_prog_mode();
				endwin();
				stop_process();
				continue;
			}

			if(input_buf_pos < ARRAY_LEN(input_buf) - 2)
			{
				input_buf[input_buf_pos++] = c;
				input_buf[input_buf_pos] = L'\0';
			}
			else
			{
				/* Recover from input buffer overflow by resetting its contents. */
				reset_input_buf(input_buf, &input_buf_pos);
				clear_input_bar();
				continue;
			}
		}

		counter = get_key_counter();
		if(!got_input && last_result == KEYS_WAIT_SHORT)
		{
			last_result = execute_keys_timed_out(input_buf);
			counter = get_key_counter() - counter;
			assert(counter <= input_buf_pos);
			if(counter > 0)
			{
				memmove(input_buf, input_buf + counter,
						(wcslen(input_buf) - counter + 1)*sizeof(wchar_t));
			}
		}
		else
		{
			if(got_input)
			{
				curr_stats.save_msg = 0;
			}

			last_result = execute_keys(input_buf);

			counter = get_key_counter() - counter;
			assert(counter <= input_buf_pos);
			if(counter > 0)
			{
				input_buf_pos -= counter;
				memmove(input_buf, input_buf + counter,
						(wcslen(input_buf) - counter + 1)*sizeof(wchar_t));
			}

			if(last_result == KEYS_WAIT || last_result == KEYS_WAIT_SHORT)
			{
				if(got_input)
				{
					modupd_input_bar(input_buf);
				}

				if(last_result == KEYS_WAIT_SHORT && wcscmp(input_buf, L"\033") == 0)
				{
					timeout = 1;
				}

				if(counter > 0)
				{
					clear_input_bar();
				}

				if(!curr_stats.save_msg && curr_view->selected_files &&
						!vle_mode_is(CMDLINE_MODE))
				{
					print_selected_msg();
				}
				continue;
			}
		}

		timeout = cfg.timeout_len;

		process_scheduled_updates();

		reset_input_buf(input_buf, &input_buf_pos);
		clear_input_bar();

		if(is_status_bar_multiline())
		{
			wait_for_enter = 1;
			update_all_windows();
			continue;
		}

		/* Ensure that current working directory is set correctly (some pieces of
		 * code rely on this).  PWD could be changed during command execution, but
		 * it should be correct for modes_post() in case of preview modes. */
		(void)vifm_chdir(flist_get_dir(curr_view));
		modes_post();
	}

	curr_input_buf = prev_input_buf;
	curr_input_buf_pos = prev_input_buf_pos;
}
示例#7
0
文件: main_loop.c 项目: ychaim/vifm
/*
 * Main Loop
 * Everything is driven from this function with the exception of
 * signals which are handled in signals.c
 */
void
main_loop(void)
{
	LOG_FUNC_ENTER;

	int last_result = 0;
	int wait_enter = 0;
	int timeout = cfg.timeout_len;

	buf[0] = L'\0';
	while(1)
	{
		wchar_t c;
		size_t counter;
		int ret;

		is_term_working();

#ifdef _WIN32
		update_win_console();
#endif

		lwin.user_selection = 1;
		rwin.user_selection = 1;

		if(curr_stats.too_small_term > 0)
		{
			touchwin(stdscr);
			wrefresh(stdscr);

			mvwin(status_bar, 0, 0);
			wresize(status_bar, getmaxy(stdscr), getmaxx(stdscr));
			werase(status_bar);
			waddstr(status_bar, "Terminal is too small for vifm");
			touchwin(status_bar);
			wrefresh(status_bar);

#ifndef _WIN32
			pause();
#endif
			continue;
		}
		else if(curr_stats.too_small_term < 0)
		{
			wtimeout(status_bar, 0);
			while(wget_wch(status_bar, (wint_t*)&c) != ERR);
			curr_stats.too_small_term = 0;
			modes_redraw();
			wtimeout(status_bar, cfg.timeout_len);

			wait_enter = 0;
			curr_stats.save_msg = 0;
			status_bar_message("");
		}

		modes_pre();

		/* This waits for timeout then skips if no keypress. */
		ret = read_char(status_bar, (wint_t*)&c, timeout);

		/* Ensure that current working directory is set correctly (some pieces of
		 * code rely on this). */
		(void)vifm_chdir(curr_view->curr_dir);

		if(ret != ERR && pos != ARRAY_LEN(buf) - 2)
		{
			if(c == L'\x1a') /* Ctrl-Z */
			{
				def_prog_mode();
				endwin();
#ifndef _WIN32
				{
					void (*saved_stp_sig_handler)(int) = signal(SIGTSTP, SIG_DFL);
					kill(0, SIGTSTP);
					signal(SIGTSTP, saved_stp_sig_handler);
				}
#endif
				continue;
			}

			if(wait_enter)
			{
				wait_enter = 0;
				curr_stats.save_msg = 0;
				clean_status_bar();
				if(c == L'\x0d')
					continue;
			}

			buf[pos++] = c;
			buf[pos] = L'\0';
		}

		if(wait_enter && ret == ERR)
			continue;

		counter = get_key_counter();
		if(ret == ERR && last_result == KEYS_WAIT_SHORT)
		{
			last_result = execute_keys_timed_out(buf);
			counter = get_key_counter() - counter;
			assert(counter <= pos);
			if(counter > 0)
			{
				memmove(buf, buf + counter,
						(wcslen(buf) - counter + 1)*sizeof(wchar_t));
			}
		}
		else
		{
			if(ret != ERR)
				curr_stats.save_msg = 0;
			last_result = execute_keys(buf);
			counter = get_key_counter() - counter;
			assert(counter <= pos);
			if(counter > 0)
			{
				pos -= counter;
				memmove(buf, buf + counter,
						(wcslen(buf) - counter + 1)*sizeof(wchar_t));
			}
			if(last_result == KEYS_WAIT || last_result == KEYS_WAIT_SHORT)
			{
				if(ret != ERR)
					modupd_input_bar(buf);
				if(last_result == KEYS_WAIT_SHORT && wcscmp(buf, L"\033") == 0)
					timeout = 1;
				if(counter > 0)
					clear_input_bar();

				if(!curr_stats.save_msg && curr_view->selected_files &&
						get_mode() != CMDLINE_MODE)
					print_selected_msg();
				continue;
			}
		}

		timeout = cfg.timeout_len;

		process_scheduled_updates();

		pos = 0;
		buf[0] = L'\0';
		clear_input_bar();

		if(is_status_bar_multiline())
		{
			wait_enter = 1;
			update_all_windows();
			continue;
		}

		/* Ensure that current working directory is set correctly (some pieces of
		 * code rely on this).  PWD could be changed during command execution, but
		 * it should be correct for modes_post() in case of preview modes. */
		(void)vifm_chdir(curr_view->curr_dir);
		modes_post();
	}
}