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