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 "ui.h"
  13 #include "util.h"
  14
  15 static void newt_form__set_exit_keys(newtComponent self)
  16 {
  17         newtFormAddHotKey(self, NEWT_KEY_LEFT);
  18         newtFormAddHotKey(self, NEWT_KEY_ESCAPE);
  19         newtFormAddHotKey(self, 'Q');
  20         newtFormAddHotKey(self, 'q');
  21         newtFormAddHotKey(self, CTRL('c'));
  22 }
  23
  24 static newtComponent newt_form__new(void)
  25 {
  26         newtComponent self = newtForm(NULL, NULL, 0);
  27         if (self)
  28                 newt_form__set_exit_keys(self);
  29         return self;
  30 }
  31
  32 int ui__popup_menu(int argc, char * const argv[])
  33 {
  34         struct newtExitStruct es;
  35         int i, rc = -1, max_len = 5;
  36         newtComponent listbox, form = newt_form__new();
  37
  38         if (form == NULL)
  39                 return -1;
  40
  41         listbox = newtListbox(0, 0, argc, NEWT_FLAG_RETURNEXIT);
  42         if (listbox == NULL)
  43                 goto out_destroy_form;
  44
  45         newtFormAddComponent(form, listbox);
  46
  47         for (i = 0; i < argc; ++i) {
  48                 int len = strlen(argv[i]);
  49                 if (len > max_len)
  50                         max_len = len;
  51                 if (newtListboxAddEntry(listbox, argv[i], (void *)(long)i))
  52                         goto out_destroy_form;
  53         }
  54
  55         newtCenteredWindow(max_len, argc, NULL);
  56         newtFormRun(form, &es);
  57         rc = newtListboxGetCurrent(listbox) - NULL;
  58         if (es.reason == NEWT_EXIT_HOTKEY)
  59                 rc = -1;
  60         newtPopWindow();
  61 out_destroy_form:
  62         newtFormDestroy(form);
  63         return rc;
  64 }
  65
  66 int ui__help_window(const char *text)
  67 {
  68         struct newtExitStruct es;
  69         newtComponent tb, form = newt_form__new();
  70         int rc = -1;
  71         int max_len = 0, nr_lines = 0;
  72         const char *t;
  73
  74         if (form == NULL)
  75                 return -1;
  76
  77         t = text;
  78         while (1) {
  79                 const char *sep = strchr(t, '\n');
  80                 int len;
  81
  82                 if (sep == NULL)
  83                         sep = strchr(t, '\0');
  84                 len = sep - t;
  85                 if (max_len < len)
  86                         max_len = len;
  87                 ++nr_lines;
  88                 if (*sep == '\0')
  89                         break;
  90                 t = sep + 1;
  91         }
  92
  93         tb = newtTextbox(0, 0, max_len, nr_lines, 0);
  94         if (tb == NULL)
  95                 goto out_destroy_form;
  96
  97         newtTextboxSetText(tb, text);
  98         newtFormAddComponent(form, tb);
  99         newtCenteredWindow(max_len, nr_lines, NULL);
 100         newtFormRun(form, &es);
 101         newtPopWindow();
 102         rc = 0;
 103 out_destroy_form:
 104         newtFormDestroy(form);
 105         return rc;
 106 }
 107
 108 static const char yes[] = "Yes", no[] = "No",
 109                   warning_str[] = "Warning!", ok[] = "Ok";
 110
 111 bool ui__dialog_yesno(const char *msg)
 112 {
 113         /* newtWinChoice should really be accepting const char pointers... */
 114         return newtWinChoice(NULL, (char *)yes, (char *)no, (char *)msg) == 1;
 115 }
 116
 117 void ui__warning(const char *format, ...)
 118 {
 119         va_list args;
 120
 121         va_start(args, format);
 122         if (use_browser > 0) {
 123                 pthread_mutex_lock(&ui__lock);
 124                 newtWinMessagev((char *)warning_str, (char *)ok,
 125                                 (char *)format, args);
 126                 pthread_mutex_unlock(&ui__lock);
 127         } else
 128                 vfprintf(stderr, format, args);
 129         va_end(args);
 130 }