1#include <stdio.h>
 2#include <stdlib.h>
 3#include <string.h>
 4
 5#include "../debug.h"
 6#include "helpline.h"
 7#include "ui.h"
 8#include "libslang.h"
 9
10void ui_helpline__pop(void)
 
 
11{
12}
13
14char ui_helpline__current[512];
 
 
15
16void ui_helpline__push(const char *msg)
 
17{
18	const size_t sz = sizeof(ui_helpline__current);
 
 
 
 
 
 
 
 
 
19
20	SLsmg_gotorc(SLtt_Screen_Rows - 1, 0);
21	SLsmg_set_color(0);
22	SLsmg_write_nstring((char *)msg, SLtt_Screen_Cols);
23	SLsmg_refresh();
24	strncpy(ui_helpline__current, msg, sz)[sz - 1] = '\0';
 
 
 
25}
26
27void ui_helpline__vpush(const char *fmt, va_list ap)
28{
29	char *s;
30
31	if (vasprintf(&s, fmt, ap) < 0)
32		vfprintf(stderr, fmt, ap);
33	else {
34		ui_helpline__push(s);
35		free(s);
36	}
37}
38
39void ui_helpline__fpush(const char *fmt, ...)
40{
41	va_list ap;
42
43	va_start(ap, fmt);
44	ui_helpline__vpush(fmt, ap);
45	va_end(ap);
46}
47
48void ui_helpline__puts(const char *msg)
49{
50	ui_helpline__pop();
51	ui_helpline__push(msg);
52}
53
54void ui_helpline__init(void)
55{
56	ui_helpline__puts(" ");
57}
58
59char ui_helpline__last_msg[1024];
60
61int ui_helpline__show_help(const char *format, va_list ap)
62{
63	int ret;
64	static int backlog;
65
66	pthread_mutex_lock(&ui__lock);
67	ret = vscnprintf(ui_helpline__last_msg + backlog,
68			sizeof(ui_helpline__last_msg) - backlog, format, ap);
69	backlog += ret;
70
71	if (ui_helpline__last_msg[backlog - 1] == '\n') {
72		ui_helpline__puts(ui_helpline__last_msg);
73		SLsmg_refresh();
74		backlog = 0;
75	}
76	pthread_mutex_unlock(&ui__lock);
77
78	return ret;
 
 
 
79}

 1// SPDX-License-Identifier: GPL-2.0
 2#include <stdio.h>
 3#include <stdlib.h>
 4#include <string.h>
 5
 
 6#include "helpline.h"
 7#include "ui.h"
 
 8
 9char ui_helpline__current[512];
10
11static void nop_helpline__pop(void)
12{
13}
14
15static void nop_helpline__push(const char *msg __maybe_unused)
16{
17}
18
19static int nop_helpline__show(const char *fmt __maybe_unused,
20			       va_list ap __maybe_unused)
21{
22	return 0;
23}
24
25static struct ui_helpline default_helpline_fns = {
26	.pop	= nop_helpline__pop,
27	.push	= nop_helpline__push,
28	.show	= nop_helpline__show,
29};
30
31struct ui_helpline *helpline_fns = &default_helpline_fns;
32
33void ui_helpline__pop(void)
34{
35	helpline_fns->pop();
36}
37
38void ui_helpline__push(const char *msg)
39{
40	helpline_fns->push(msg);
41}
42
43void ui_helpline__vpush(const char *fmt, va_list ap)
44{
45	char *s;
46
47	if (vasprintf(&s, fmt, ap) < 0)
48		vfprintf(stderr, fmt, ap);
49	else {
50		ui_helpline__push(s);
51		free(s);
52	}
53}
54
55void ui_helpline__fpush(const char *fmt, ...)
56{
57	va_list ap;
58
59	va_start(ap, fmt);
60	ui_helpline__vpush(fmt, ap);
61	va_end(ap);
62}
63
64void ui_helpline__puts(const char *msg)
65{
66	ui_helpline__pop();
67	ui_helpline__push(msg);
68}
69
70int ui_helpline__vshow(const char *fmt, va_list ap)
71{
72	return helpline_fns->show(fmt, ap);
73}
74
75void ui_helpline__printf(const char *fmt, ...)
 
 
76{
77	va_list ap;
 
 
 
 
 
 
 
 
 
 
 
 
 
78
79	ui_helpline__pop();
80	va_start(ap, fmt);
81	ui_helpline__vpush(fmt, ap);
82	va_end(ap);
83}