Merge tag 'fixes-for-v4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi...
[linux/fpc-iii.git] / tools / perf / ui / browsers / header.c
blobe8278c558d4a14beb9d040f7334f4b8761e25ba8
1 #include "util/cache.h"
2 #include "util/debug.h"
3 #include "ui/browser.h"
4 #include "ui/keysyms.h"
5 #include "ui/ui.h"
6 #include "ui/util.h"
7 #include "ui/libslang.h"
8 #include "util/header.h"
9 #include "util/session.h"
11 static void ui_browser__argv_write(struct ui_browser *browser,
12 void *entry, int row)
14 char **arg = entry;
15 char *str = *arg;
16 char empty[] = " ";
17 bool current_entry = ui_browser__is_current_entry(browser, row);
18 unsigned long offset = (unsigned long)browser->priv;
20 if (offset >= strlen(str))
21 str = empty;
22 else
23 str = str + offset;
25 ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED :
26 HE_COLORSET_NORMAL);
28 slsmg_write_nstring(str, browser->width);
31 static int list_menu__run(struct ui_browser *menu)
33 int key;
34 unsigned long offset;
35 const char help[] =
36 "h/?/F1 Show this window\n"
37 "UP/DOWN/PGUP\n"
38 "PGDN/SPACE\n"
39 "LEFT/RIGHT Navigate\n"
40 "q/ESC/CTRL+C Exit browser";
42 if (ui_browser__show(menu, "Header information", "Press 'q' to exit") < 0)
43 return -1;
45 while (1) {
46 key = ui_browser__run(menu, 0);
48 switch (key) {
49 case K_RIGHT:
50 offset = (unsigned long)menu->priv;
51 offset += 10;
52 menu->priv = (void *)offset;
53 continue;
54 case K_LEFT:
55 offset = (unsigned long)menu->priv;
56 if (offset >= 10)
57 offset -= 10;
58 menu->priv = (void *)offset;
59 continue;
60 case K_F1:
61 case 'h':
62 case '?':
63 ui_browser__help_window(menu, help);
64 continue;
65 case K_ESC:
66 case 'q':
67 case CTRL('c'):
68 key = -1;
69 break;
70 default:
71 continue;
74 break;
77 ui_browser__hide(menu);
78 return key;
81 static int ui__list_menu(int argc, char * const argv[])
83 struct ui_browser menu = {
84 .entries = (void *)argv,
85 .refresh = ui_browser__argv_refresh,
86 .seek = ui_browser__argv_seek,
87 .write = ui_browser__argv_write,
88 .nr_entries = argc,
91 return list_menu__run(&menu);
94 int tui__header_window(struct perf_session_env *env)
96 int i, argc = 0;
97 char **argv;
98 struct perf_session *session;
99 char *ptr, *pos;
100 size_t size;
101 FILE *fp = open_memstream(&ptr, &size);
103 session = container_of(env, struct perf_session, header.env);
104 perf_header__fprintf_info(session, fp, true);
105 fclose(fp);
107 for (pos = ptr, argc = 0; (pos = strchr(pos, '\n')) != NULL; pos++)
108 argc++;
110 argv = calloc(argc + 1, sizeof(*argv));
111 if (argv == NULL)
112 goto out;
114 argv[0] = pos = ptr;
115 for (i = 1; (pos = strchr(pos, '\n')) != NULL; i++) {
116 *pos++ = '\0';
117 argv[i] = pos;
120 BUG_ON(i != argc + 1);
122 ui__list_menu(argc, argv);
124 out:
125 free(argv);
126 free(ptr);
127 return 0;