CyteKit/extern.mm

   1 /* Cydia - iPhone UIKit Front-End for Debian APT
   2  * Copyright (C) 2008-2015  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU General Public License, Version 3 {{{ */
   6 /*
   7  * Cydia is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published
   9  * by the Free Software Foundation, either version 3 of the License,
  10  * or (at your option) any later version.
  11  *
  12  * Cydia is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with Cydia.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #include <CyteKit/extern.h>
  23
  24 #include <SystemConfiguration/SystemConfiguration.h>
  25 #include <UIKit/UIKit.h>
  26
  27 bool IsWildcat_;
  28 CGFloat ScreenScale_;
  29
  30 bool CyteIsReachable(const char *name) {
  31     SCNetworkReachabilityFlags flags; {
  32         SCNetworkReachabilityRef reachability(SCNetworkReachabilityCreateWithName(kCFAllocatorDefault, name));
  33         SCNetworkReachabilityGetFlags(reachability, &flags);
  34         CFRelease(reachability);
  35     }
  36
  37     // XXX: this elaborate mess is what Apple is using to determine this? :(
  38     // XXX: do we care if the user has to intervene? maybe that's ok?
  39     return
  40         (flags & kSCNetworkReachabilityFlagsReachable) != 0 && (
  41             (flags & kSCNetworkReachabilityFlagsConnectionRequired) == 0 || (
  42                 (flags & kSCNetworkReachabilityFlagsConnectionOnDemand) != 0 ||
  43                 (flags & kSCNetworkReachabilityFlagsConnectionOnTraffic) != 0
  44             ) && (flags & kSCNetworkReachabilityFlagsInterventionRequired) == 0 ||
  45             (flags & kSCNetworkReachabilityFlagsIsWWAN) != 0
  46         )
  47     ;
  48 }
  49
  50 __attribute__((__constructor__))
  51 void CyteKit_extern() {
  52     UIScreen *screen([UIScreen mainScreen]);
  53     if ([screen respondsToSelector:@selector(scale)])
  54         ScreenScale_ = [screen scale];
  55     else
  56         ScreenScale_ = 1;
  57
  58     UIDevice *device([UIDevice currentDevice]);
  59     if ([device respondsToSelector:@selector(userInterfaceIdiom)]) {
  60         UIUserInterfaceIdiom idiom([device userInterfaceIdiom]);
  61         if (idiom == UIUserInterfaceIdiomPad)
  62             IsWildcat_ = true;
  63     }
  64 }