src/bin/dstcheck.cpp

   1 /*
   2  * Copyright 2004, Jérôme Duval, jerome.duval@free.fr.
   3  * Distributed under the terms of the MIT License.
   4  */
   5
   6
   7 #include <Alert.h>
   8 #include <Application.h>
   9 #include <Catalog.h>
  10 #include <FindDirectory.h>
  11 #include <Locale.h>
  12 #include <MessageRunner.h>
  13 #include <Roster.h>
  14 #include <String.h>
  15 #include <TextView.h>
  16 #include <TimeFormat.h>
  17
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20 #include <unistd.h>
  21
  22
  23 #undef B_TRANSLATION_CONTEXT
  24 #define B_TRANSLATION_CONTEXT "dstcheck"
  25
  26
  27 const uint32 TIMEDALERT_UPDATE = 'taup';
  28
  29 class TimedAlert : public BAlert {
  30 public:
  31         TimedAlert(const char *title, const char *text, const char *button1,
  32                 const char *button2 = NULL, const char *button3 = NULL,
  33                 button_width width = B_WIDTH_AS_USUAL,
  34                 alert_type type = B_INFO_ALERT);
  35         void MessageReceived(BMessage *);
  36         void Show();
  37
  38         static void GetLabel(BString &string);
  39
  40 private:
  41         BMessageRunner *fRunner;
  42 };
  43
  44
  45 TimedAlert::TimedAlert(const char *title, const char *text, const char *button1,
  46                 const char *button2, const char *button3,
  47                 button_width width, alert_type type)
  48         : BAlert(title, text, button1, button2, button3, width, type),
  49         fRunner(NULL)
  50 {
  51         SetShortcut(0, B_ESCAPE);
  52 }
  53
  54
  55 void
  56 TimedAlert::Show()
  57 {
  58         fRunner
  59                 = new BMessageRunner(this, new BMessage(TIMEDALERT_UPDATE), 60000000);
  60         SetFeel(B_FLOATING_ALL_WINDOW_FEEL);
  61         BAlert::Show();
  62 }
  63
  64
  65 void
  66 TimedAlert::MessageReceived(BMessage *msg)
  67 {
  68         if (msg->what == TIMEDALERT_UPDATE) {
  69                 BString string;
  70                 GetLabel(string);
  71                 TextView()->SetText(string.String());
  72         } else {
  73                 BAlert::MessageReceived(msg);
  74         }
  75 }
  76
  77
  78 void
  79 TimedAlert::GetLabel(BString &string)
  80 {
  81         string = B_TRANSLATE("Attention!\n\nBecause of the switch from daylight "
  82                 "saving time, your computer's clock may be an hour off.\n"
  83                 "Your computer thinks it is %current time%.\n\nIs this the correct "
  84                 "time?");
  85
  86         time_t t;
  87         struct tm tm;
  88         char timestring[15];
  89         time(&t);
  90         localtime_r(&t, &tm);
  91
  92         BTimeFormat().Format(timestring, 15, t, B_SHORT_TIME_FORMAT);
  93
  94         string.ReplaceFirst("%current time%", timestring);
  95 }
  96
  97
  98 //      #pragma mark -
  99
 100
 101 int
 102 main(int argc, char **argv)
 103 {
 104         time_t t;
 105         struct tm tm;
 106         tzset();
 107         time(&t);
 108         localtime_r(&t, &tm);
 109
 110         char path[B_PATH_NAME_LENGTH];
 111         if (find_directory(B_USER_SETTINGS_DIRECTORY, -1, true, path,
 112                         B_PATH_NAME_LENGTH) != B_OK) {
 113                 fprintf(stderr, "%s: can't find settings directory\n", argv[0]);
 114                 exit(1);
 115         }
 116
 117         strcat(path, "/time_dststatus");
 118         bool dst = false;
 119         int fd = open(path, O_RDWR | O_EXCL | O_CREAT, S_IRUSR | S_IWUSR);
 120         if (fd < 0) {
 121                 fd = open(path, O_RDWR);
 122                 if (fd < 0) {
 123                         perror("couldn't open dst status settings file");
 124                         exit(1);
 125                 }
 126
 127                 char dst_byte;
 128                 read(fd, &dst_byte, 1);
 129
 130                 dst = dst_byte == '1';
 131         } else {
 132                 dst = tm.tm_isdst;
 133         }
 134
 135         if (dst != tm.tm_isdst || argc > 1) {
 136                 BApplication app("application/x-vnd.Haiku-cmd-dstconfig");
 137
 138                 BString string;
 139                 TimedAlert::GetLabel(string);
 140
 141                 int32 index = (new TimedAlert("timedAlert", string.String(),
 142                         B_TRANSLATE("Keep this time"), B_TRANSLATE("Ask me later"),
 143                         B_TRANSLATE("Manually adjust time" B_UTF8_ELLIPSIS)))->Go();
 144                 if (index == 1)
 145                         exit(0);
 146
 147                 if (index == 2)
 148                         be_roster->Launch("application/x-vnd.Haiku-Time");
 149         }
 150
 151         lseek(fd, 0, SEEK_SET);
 152         char dst_byte = tm.tm_isdst ? '1' : '0';
 153         write(fd, &dst_byte, 1);
 154         close(fd);
 155
 156         return 0;
 157 }