LXR linux/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
  15static 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
  24static 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
  32int 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();
  61out_destroy_form:
  62        newtFormDestroy(form);
  63        return rc;
  64}
  65
  66int 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;
 103out_destroy_form:
 104        newtFormDestroy(form);
 105        return rc;
 106}
 107
 108static const char yes[] = "Yes", no[] = "No",
 109                  warning_str[] = "Warning!", ok[] = "Ok";
 110
 111bool 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
 117void 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}
 131