userinput_order.c

/*
 * Copyright (c) 2008 Apple Computer, Inc.  All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 *
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 *
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * @APPLE_LICENSE_HEADER_END@
 */
#include "userinput_order.h"
#include "preferences.h"
#include <curses.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

static void
order_completion(void *tinst, struct user_input_state *s)
{
	if (!strlen(s->buf)) {
		/* Use the current order. */
		user_input_set_state(NULL);
		return;
	}

	if (top_prefs_set_sort(s->buf)) {
		char errbuf[60];
		if (-1 == snprintf(errbuf, sizeof(errbuf), "invalid order: %s\n", s->buf)) {
			user_input_set_error_state("order buffer overflow");
			return;
		}
		user_input_set_error_state(errbuf);
		return;
	}

	user_input_set_state(NULL);
}

static void
order_draw(void *tinst, struct user_input_state *s, WINDOW *win, int row, int column)
{
	char display[60];

	if (-1
			== snprintf(display, sizeof(display), "primary key [%c%s]: %s\n",
					top_prefs_get_ascending() ? '+' : '-', top_prefs_get_sort_string(), s->buf))
		return;

	mvwaddstr(win, row, column, display);
}

struct user_input_state top_user_input_order_state
		= { .offset = 0, .completion = order_completion, .draw = order_draw };