tools/perf/util/ui/util.c

   1 #include "../util.h"
   2 #include <signal.h>
   3 #include <stdbool.h>
   4 #include <string.h>
   5 #include <sys/ttydefaults.h>
   6
   7 #include "../cache.h"
   8 #include "../debug.h"
   9 #include "browser.h"
  10 #include "keysyms.h"
  11 #include "helpline.h"
  12 #include "ui.h"
  13 #include "util.h"
  14 #include "libslang.h"
  15
  16 static void ui_browser__argv_write(struct ui_browser *browser,
  17                                    void *entry, int row)
  18 {
  19         char **arg = entry;
  20         bool current_entry = ui_browser__is_current_entry(browser, row);
  21
  22         ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED :
  23                                                        HE_COLORSET_NORMAL);
  24         slsmg_write_nstring(*arg, browser->width);
  25 }
  26
  27 static int popup_menu__run(struct ui_browser *menu)
  28 {
  29         int key;
  30
  31         if (ui_browser__show(menu, " ", "ESC: exit, ENTER|->: Select option") < 0)
  32                 return -1;
  33
  34         while (1) {
  35                 key = ui_browser__run(menu, 0);
  36
  37                 switch (key) {
  38                 case K_RIGHT:
  39                 case K_ENTER:
  40                         key = menu->index;
  41                         break;
  42                 case K_LEFT:
  43                 case K_ESC:
  44                 case 'q':
  45                 case CTRL('c'):
  46                         key = -1;
  47                         break;
  48                 default:
  49                         continue;
  50                 }
  51
  52                 break;
  53         }
  54
  55         ui_browser__hide(menu);
  56         return key;
  57 }
  58
  59 int ui__popup_menu(int argc, char * const argv[])
  60 {
  61         struct ui_browser menu = {
  62                 .entries    = (void *)argv,
  63                 .refresh    = ui_browser__argv_refresh,
  64                 .seek       = ui_browser__argv_seek,
  65                 .write      = ui_browser__argv_write,
  66                 .nr_entries = argc,
  67         };
  68
  69         return popup_menu__run(&menu);
  70 }
  71
  72 int ui__question_window(const char *title, const char *text,
  73                         const char *exit_msg, int delay_secs)
  74 {
  75         int x, y;
  76         int max_len = 0, nr_lines = 0;
  77         const char *t;
  78
  79         t = text;
  80         while (1) {
  81                 const char *sep = strchr(t, '\n');
  82                 int len;
  83
  84                 if (sep == NULL)
  85                         sep = strchr(t, '\0');
  86                 len = sep - t;
  87                 if (max_len < len)
  88                         max_len = len;
  89                 ++nr_lines;
  90                 if (*sep == '\0')
  91                         break;
  92                 t = sep + 1;
  93         }
  94
  95         max_len += 2;
  96         nr_lines += 4;
  97         y = SLtt_Screen_Rows / 2 - nr_lines / 2,
  98         x = SLtt_Screen_Cols / 2 - max_len / 2;
  99
 100         SLsmg_set_color(0);
 101         SLsmg_draw_box(y, x++, nr_lines, max_len);
 102         if (title) {
 103                 SLsmg_gotorc(y, x + 1);
 104                 SLsmg_write_string((char *)title);
 105         }
 106         SLsmg_gotorc(++y, x);
 107         nr_lines -= 2;
 108         max_len -= 2;
 109         SLsmg_write_wrapped_string((unsigned char *)text, y, x,
 110                                    nr_lines, max_len, 1);
 111         SLsmg_gotorc(y + nr_lines - 2, x);
 112         SLsmg_write_nstring((char *)" ", max_len);
 113         SLsmg_gotorc(y + nr_lines - 1, x);
 114         SLsmg_write_nstring((char *)exit_msg, max_len);
 115         SLsmg_refresh();
 116         return ui__getch(delay_secs);
 117 }
 118
 119 int ui__help_window(const char *text)
 120 {
 121         return ui__question_window("Help", text, "Press any key...", 0);
 122 }
 123
 124 int ui__dialog_yesno(const char *msg)
 125 {
 126         return ui__question_window(NULL, msg, "Enter: Yes, ESC: No", 0);
 127 }
 128
 129 int __ui__warning(const char *title, const char *format, va_list args)
 130 {
 131         char *s;
 132
 133         if (use_browser > 0 && vasprintf(&s, format, args) > 0) {
 134                 int key;
 135
 136                 pthread_mutex_lock(&ui__lock);
 137                 key = ui__question_window(title, s, "Press any key...", 0);
 138                 pthread_mutex_unlock(&ui__lock);
 139                 free(s);
 140                 return key;
 141         }
 142
 143         fprintf(stderr, "%s:\n", title);
 144         vfprintf(stderr, format, args);
 145         return K_ESC;
 146 }
 147
 148 int ui__warning(const char *format, ...)
 149 {
 150         int key;
 151         va_list args;
 152
 153         va_start(args, format);
 154         key = __ui__warning("Warning", format, args);
 155         va_end(args);
 156         return key;
 157 }
 158
 159 int ui__error(const char *format, ...)
 160 {
 161         int key;
 162         va_list args;
 163
 164         va_start(args, format);
 165         key = __ui__warning("Error", format, args);
 166         va_end(args);
 167         return key;
 168 }