common/SC_StandAloneInfo_Darwin.cpp

   1 #if defined(__APPLE__) || defined(SC_IPHONE)
   2
   3 #include <sys/param.h>
   4 #include <stdexcept>
   5 #include <cstring>  // for strncpy
   6 #include <mach-o/dyld.h> // for _NSGetExecutablePath
   7 #include <libgen.h>
   8 #include <stdlib.h>
   9
  10 #include <CoreFoundation/CFString.h>
  11 #include <CoreFoundation/CFBundle.h>
  12 //#include <CoreServices/CoreServices.h>
  13
  14 #include "SC_StandAloneInfo_Darwin.h"
  15
  16 bool SC_StandAloneInfo::haveCheckedBundleStatus;
  17 char SC_StandAloneInfo::dirPath[PATH_MAX];
  18
  19 void SC_StandAloneInfo::SC_StandAloneInfoInit() {
  20         char relDir[PATH_MAX];
  21         CFStringEncoding encoding = kCFStringEncodingASCII;
  22         if(!haveCheckedBundleStatus) {
  23                 haveCheckedBundleStatus = true;
  24
  25                 CFURLRef enablerURL = CFBundleCopyResourceURL (
  26                         CFBundleGetMainBundle(),
  27                         CFSTR("SCClassLibrary"),
  28                         NULL,
  29                         NULL
  30                 );
  31                 if( !enablerURL ) {
  32                         enablerURL = CFBundleCopyResourceURL (
  33                                   CFBundleGetMainBundle(),
  34                                   CFSTR("sclang.app"),
  35                                   NULL,
  36                                   NULL
  37                                   );
  38                 }
  39                 if ( enablerURL ) {
  40                         // If sclang or SuperCollider binary is run within the .app bundle,
  41                         // this is how we find the Resources path.
  42                         CFStringRef rawPath = CFURLCopyFileSystemPath(enablerURL, kCFURLPOSIXPathStyle);
  43                         rawPath = CFStringCreateWithFormat(NULL, NULL, CFSTR("%@/.."), rawPath);
  44                         CFStringGetCString(rawPath, relDir, PATH_MAX, encoding);
  45                 } else {
  46                         // when sclang is run from a symlink, the resource URL above will not be found,
  47                         // so we need to find the path of the executable.
  48                         uint32_t bufsize = PATH_MAX, *bufsizep = &bufsize;
  49                         if(_NSGetExecutablePath(relDir, bufsizep)==0) {
  50                                 realpath(relDir, dirPath); // resolve symlink
  51                                 char *dir = dirname(dirPath);
  52                                 strcpy(dirPath, dir);
  53                                 return;
  54                         } else {
  55                                 // in case it failed, fall back to current directory
  56                                 getcwd(dirPath, PATH_MAX);
  57                         }
  58                 }
  59                 realpath(relDir, dirPath);
  60         }
  61 }
  62
  63 bool SC_StandAloneInfo::IsStandAlone() {
  64 #ifdef SC_STANDALONE
  65     return true;
  66 #else
  67     return false;
  68 #endif
  69 }
  70
  71 void SC_StandAloneInfo::GetResourceDir(char* pathBuf, int length)
  72 {
  73         if ( !haveCheckedBundleStatus )
  74         {
  75                 SC_StandAloneInfoInit();
  76         }
  77         strncpy(pathBuf, dirPath, length);
  78 }
  79
  80 #endif