tools/perf/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_browser__input_window(const char *title, const char *text, char *input,
  73                              const char *exit_msg, int delay_secs)
  74 {
  75         int x, y, len, key;
  76         int max_len = 60, nr_lines = 0;
  77         static char buf[50];
  78         const char *t;
  79
  80         t = text;
  81         while (1) {
  82                 const char *sep = strchr(t, '\n');
  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 += 8;
  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 -= 7;
 108         max_len -= 2;
 109         SLsmg_write_wrapped_string((unsigned char *)text, y, x,
 110                                    nr_lines, max_len, 1);
 111         y += nr_lines;
 112         len = 5;
 113         while (len--) {
 114                 SLsmg_gotorc(y + len - 1, x);
 115                 SLsmg_write_nstring((char *)" ", max_len);
 116         }
 117         SLsmg_draw_box(y++, x + 1, 3, max_len - 2);
 118
 119         SLsmg_gotorc(y + 3, x);
 120         SLsmg_write_nstring((char *)exit_msg, max_len);
 121         SLsmg_refresh();
 122
 123         x += 2;
 124         len = 0;
 125         key = ui__getch(delay_secs);
 126         while (key != K_TIMER && key != K_ENTER && key != K_ESC) {
 127                 if (key == K_BKSPC) {
 128                         if (len == 0)
 129                                 goto next_key;
 130                         SLsmg_gotorc(y, x + --len);
 131                         SLsmg_write_char(' ');
 132                 } else {
 133                         buf[len] = key;
 134                         SLsmg_gotorc(y, x + len++);
 135                         SLsmg_write_char(key);
 136                 }
 137                 SLsmg_refresh();
 138
 139                 /* XXX more graceful overflow handling needed */
 140                 if (len == sizeof(buf) - 1) {
 141                         ui_helpline__push("maximum size of symbol name reached!");
 142                         key = K_ENTER;
 143                         break;
 144                 }
 145 next_key:
 146                 key = ui__getch(delay_secs);
 147         }
 148
 149         buf[len] = '\0';
 150         strncpy(input, buf, len+1);
 151         return key;
 152 }
 153
 154 int ui__question_window(const char *title, const char *text,
 155                         const char *exit_msg, int delay_secs)
 156 {
 157         int x, y;
 158         int max_len = 0, nr_lines = 0;
 159         const char *t;
 160
 161         t = text;
 162         while (1) {
 163                 const char *sep = strchr(t, '\n');
 164                 int len;
 165
 166                 if (sep == NULL)
 167                         sep = strchr(t, '\0');
 168                 len = sep - t;
 169                 if (max_len < len)
 170                         max_len = len;
 171                 ++nr_lines;
 172                 if (*sep == '\0')
 173                         break;
 174                 t = sep + 1;
 175         }
 176
 177         max_len += 2;
 178         nr_lines += 4;
 179         y = SLtt_Screen_Rows / 2 - nr_lines / 2,
 180         x = SLtt_Screen_Cols / 2 - max_len / 2;
 181
 182         SLsmg_set_color(0);
 183         SLsmg_draw_box(y, x++, nr_lines, max_len);
 184         if (title) {
 185                 SLsmg_gotorc(y, x + 1);
 186                 SLsmg_write_string((char *)title);
 187         }
 188         SLsmg_gotorc(++y, x);
 189         nr_lines -= 2;
 190         max_len -= 2;
 191         SLsmg_write_wrapped_string((unsigned char *)text, y, x,
 192                                    nr_lines, max_len, 1);
 193         SLsmg_gotorc(y + nr_lines - 2, x);
 194         SLsmg_write_nstring((char *)" ", max_len);
 195         SLsmg_gotorc(y + nr_lines - 1, x);
 196         SLsmg_write_nstring((char *)exit_msg, max_len);
 197         SLsmg_refresh();
 198         return ui__getch(delay_secs);
 199 }
 200
 201 int ui__help_window(const char *text)
 202 {
 203         return ui__question_window("Help", text, "Press any key...", 0);
 204 }
 205
 206 int ui__dialog_yesno(const char *msg)
 207 {
 208         return ui__question_window(NULL, msg, "Enter: Yes, ESC: No", 0);
 209 }
 210
 211 int __ui__warning(const char *title, const char *format, va_list args)
 212 {
 213         char *s;
 214
 215         if (use_browser > 0 && vasprintf(&s, format, args) > 0) {
 216                 int key;
 217
 218                 pthread_mutex_lock(&ui__lock);
 219                 key = ui__question_window(title, s, "Press any key...", 0);
 220                 pthread_mutex_unlock(&ui__lock);
 221                 free(s);
 222                 return key;
 223         }
 224
 225         fprintf(stderr, "%s:\n", title);
 226         vfprintf(stderr, format, args);
 227         return K_ESC;
 228 }
 229
 230 int ui__warning(const char *format, ...)
 231 {
 232         int key;
 233         va_list args;
 234
 235         va_start(args, format);
 236         key = __ui__warning("Warning", format, args);
 237         va_end(args);
 238         return key;
 239 }
 240
 241 int ui__error(const char *format, ...)
 242 {
 243         int key;
 244         va_list args;
 245
 246         va_start(args, format);
 247         key = __ui__warning("Error", format, args);
 248         va_end(args);
 249         return key;
 250 }