tools/perf/util/ui/util.c

   1 #include <newt.h>
   2 #include <signal.h>
   3 #include <stdio.h>
   4 #include <stdbool.h>
   5 #include <string.h>
   6 #include <sys/ttydefaults.h>
   7
   8 #include "../cache.h"
   9 #include "../debug.h"
  10 #include "browser.h"
  11 #include "helpline.h"
  12 #include "util.h"
  13
  14 newtComponent newt_form__new(void);
  15
  16 static void newt_form__set_exit_keys(newtComponent self)
  17 {
  18         newtFormAddHotKey(self, NEWT_KEY_LEFT);
  19         newtFormAddHotKey(self, NEWT_KEY_ESCAPE);
  20         newtFormAddHotKey(self, 'Q');
  21         newtFormAddHotKey(self, 'q');
  22         newtFormAddHotKey(self, CTRL('c'));
  23 }
  24
  25 newtComponent newt_form__new(void)
  26 {
  27         newtComponent self = newtForm(NULL, NULL, 0);
  28         if (self)
  29                 newt_form__set_exit_keys(self);
  30         return self;
  31 }
  32
  33 int ui__popup_menu(int argc, char * const argv[])
  34 {
  35         struct newtExitStruct es;
  36         int i, rc = -1, max_len = 5;
  37         newtComponent listbox, form = newt_form__new();
  38
  39         if (form == NULL)
  40                 return -1;
  41
  42         listbox = newtListbox(0, 0, argc, NEWT_FLAG_RETURNEXIT);
  43         if (listbox == NULL)
  44                 goto out_destroy_form;
  45
  46         newtFormAddComponent(form, listbox);
  47
  48         for (i = 0; i < argc; ++i) {
  49                 int len = strlen(argv[i]);
  50                 if (len > max_len)
  51                         max_len = len;
  52                 if (newtListboxAddEntry(listbox, argv[i], (void *)(long)i))
  53                         goto out_destroy_form;
  54         }
  55
  56         newtCenteredWindow(max_len, argc, NULL);
  57         newtFormRun(form, &es);
  58         rc = newtListboxGetCurrent(listbox) - NULL;
  59         if (es.reason == NEWT_EXIT_HOTKEY)
  60                 rc = -1;
  61         newtPopWindow();
  62 out_destroy_form:
  63         newtFormDestroy(form);
  64         return rc;
  65 }
  66
  67 int ui__help_window(const char *text)
  68 {
  69         struct newtExitStruct es;
  70         newtComponent tb, form = newt_form__new();
  71         int rc = -1;
  72         int max_len = 0, nr_lines = 0;
  73         const char *t;
  74
  75         if (form == NULL)
  76                 return -1;
  77
  78         t = text;
  79         while (1) {
  80                 const char *sep = strchr(t, '\n');
  81                 int len;
  82
  83                 if (sep == NULL)
  84                         sep = strchr(t, '\0');
  85                 len = sep - t;
  86                 if (max_len < len)
  87                         max_len = len;
  88                 ++nr_lines;
  89                 if (*sep == '\0')
  90                         break;
  91                 t = sep + 1;
  92         }
  93
  94         tb = newtTextbox(0, 0, max_len, nr_lines, 0);
  95         if (tb == NULL)
  96                 goto out_destroy_form;
  97
  98         newtTextboxSetText(tb, text);
  99         newtFormAddComponent(form, tb);
 100         newtCenteredWindow(max_len, nr_lines, NULL);
 101         newtFormRun(form, &es);
 102         newtPopWindow();
 103         rc = 0;
 104 out_destroy_form:
 105         newtFormDestroy(form);
 106         return rc;
 107 }
 108
 109 bool ui__dialog_yesno(const char *msg)
 110 {
 111         /* newtWinChoice should really be accepting const char pointers... */
 112         char yes[] = "Yes", no[] = "No";
 113         return newtWinChoice(NULL, yes, no, (char *)msg) == 1;
 114 }