1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
// SPDX-License-Identifier: GPL-2.0
#include "util/cache.h"
#include "util/debug.h"
#include "ui/browser.h"
#include "ui/keysyms.h"
#include "ui/ui.h"
#include "ui/util.h"
#include "ui/libslang.h"
#include "util/header.h"
#include "util/session.h"
#include <sys/ttydefaults.h>
static void ui_browser__argv_write(struct ui_browser *browser,
void *entry, int row)
{
char **arg = entry;
char *str = *arg;
char empty[] = " ";
bool current_entry = ui_browser__is_current_entry(browser, row);
unsigned long offset = (unsigned long)browser->priv;
if (offset >= strlen(str))
str = empty;
else
str = str + offset;
ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED :
HE_COLORSET_NORMAL);
ui_browser__write_nstring(browser, str, browser->width);
}
static int list_menu__run(struct ui_browser *menu)
{
int key;
unsigned long offset;
const char help[] =
"h/?/F1 Show this window\n"
"UP/DOWN/PGUP\n"
"PGDN/SPACE\n"
"LEFT/RIGHT Navigate\n"
"q/ESC/CTRL+C Exit browser";
if (ui_browser__show(menu, "Header information", "Press 'q' to exit") < 0)
return -1;
while (1) {
key = ui_browser__run(menu, 0);
switch (key) {
case K_RIGHT:
offset = (unsigned long)menu->priv;
offset += 10;
menu->priv = (void *)offset;
continue;
case K_LEFT:
offset = (unsigned long)menu->priv;
if (offset >= 10)
offset -= 10;
menu->priv = (void *)offset;
continue;
case K_F1:
case 'h':
case '?':
ui_browser__help_window(menu, help);
continue;
case K_ESC:
case 'q':
case CTRL('c'):
key = -1;
break;
default:
continue;
}
break;
}
ui_browser__hide(menu);
return key;
}
static int ui__list_menu(int argc, char * const argv[])
{
struct ui_browser menu = {
.entries = (void *)argv,
.refresh = ui_browser__argv_refresh,
.seek = ui_browser__argv_seek,
.write = ui_browser__argv_write,
.nr_entries = argc,
};
return list_menu__run(&menu);
}
int tui__header_window(struct perf_env *env)
{
int i, argc = 0;
char **argv;
struct perf_session *session;
char *ptr, *pos;
size_t size;
FILE *fp = open_memstream(&ptr, &size);
session = container_of(env, struct perf_session, header.env);
perf_header__fprintf_info(session, fp, true);
fclose(fp);
for (pos = ptr, argc = 0; (pos = strchr(pos, '\n')) != NULL; pos++)
argc++;
argv = calloc(argc + 1, sizeof(*argv));
if (argv == NULL)
goto out;
argv[0] = pos = ptr;
for (i = 1; (pos = strchr(pos, '\n')) != NULL; i++) {
*pos++ = '\0';
argv[i] = pos;
}
BUG_ON(i != argc + 1);
ui__list_menu(argc, argv);
out:
free(argv);
free(ptr);
return 0;
}
|
