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