src/gtk/gnome/gvfs.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/gnome/gvfs.cpp
   3 // Author:      Robert Roebling
   4 // Purpose:     Implement GNOME VFS support
   5 // Created:     03/17/06
   6 // Copyright:   Robert Roebling
   7 // Licence:     wxWindows Licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx/wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #ifdef __BORLANDC__
  14     #pragma hdrstop
  15 #endif
  16
  17 #if wxUSE_MIMETYPE && wxUSE_LIBGNOMEVFS
  18
  19 #include "wx/gtk/gnome/gvfs.h"
  20
  21 #ifndef WX_PRECOMP
  22     #include "wx/log.h"
  23     #include "wx/module.h"
  24 #endif
  25
  26 #include "wx/mimetype.h"
  27 #include "wx/dynlib.h"
  28
  29 #include <libgnomevfs/gnome-vfs-mime-handlers.h>
  30
  31 #include "wx/link.h"
  32 wxFORCE_LINK_THIS_MODULE(gnome_vfs)
  33
  34 //----------------------------------------------------------------------------
  35 // wxGnomeVFSLibrary
  36 //----------------------------------------------------------------------------
  37
  38 class wxGnomeVFSLibrary
  39 {
  40 public:
  41     wxGnomeVFSLibrary();
  42     ~wxGnomeVFSLibrary();
  43     bool IsOk();
  44
  45 private:
  46     bool InitializeMethods();
  47
  48     wxDynamicLibrary m_libGnomeVFS;
  49
  50     // only true if we successfully loaded the library above
  51     //
  52     // don't rename this field, it's used by wxDL_XXX macros internally
  53     bool m_ok;
  54
  55 public:
  56     wxDL_METHOD_DEFINE( gboolean, gnome_vfs_init,
  57         (), (), FALSE )
  58     wxDL_VOIDMETHOD_DEFINE( gnome_vfs_shutdown,
  59         (), () )
  60
  61     wxDL_METHOD_DEFINE( GnomeVFSResult, gnome_vfs_mime_set_icon,
  62         (const char *mime_type, const char *filename), (mime_type, filename), GNOME_VFS_OK )
  63 };
  64
  65 wxGnomeVFSLibrary::wxGnomeVFSLibrary()
  66 {
  67     wxLogNull log;
  68
  69     m_libGnomeVFS.Load("libgnomevfs-2.so.0");
  70     m_ok = m_libGnomeVFS.IsLoaded() && InitializeMethods();
  71 }
  72
  73 wxGnomeVFSLibrary::~wxGnomeVFSLibrary()
  74 {
  75     // we crash on exit later (i.e. after main() finishes) if we unload this
  76     // library, apparently it inserts some hooks in other libraries to which we
  77     // link implicitly (GTK+ itself?) which are not uninstalled when it's
  78     // unloaded resulting in this crash, so just leave it in memory -- it's a
  79     // lesser evil
  80     m_libGnomeVFS.Detach();
  81 }
  82
  83 bool wxGnomeVFSLibrary::IsOk()
  84 {
  85     return m_ok;
  86 }
  87
  88 bool wxGnomeVFSLibrary::InitializeMethods()
  89 {
  90     wxDL_METHOD_LOAD( m_libGnomeVFS, gnome_vfs_init );
  91     wxDL_METHOD_LOAD( m_libGnomeVFS, gnome_vfs_shutdown );
  92
  93     return true;
  94 }
  95
  96 static wxGnomeVFSLibrary* gs_lgvfs = NULL;
  97
  98 //----------------------------------------------------------------------------
  99 // wxGnomeVFSMimeTypesManagerFactory
 100 //----------------------------------------------------------------------------
 101
 102 wxMimeTypesManagerImpl *wxGnomeVFSMimeTypesManagerFactory::CreateMimeTypesManagerImpl()
 103 {
 104     return new wxGnomeVFSMimeTypesManagerImpl;
 105 }
 106
 107
 108 //----------------------------------------------------------------------------
 109 // wxGnomeVFSMimeTypesManagerImpl
 110 //----------------------------------------------------------------------------
 111
 112 bool wxGnomeVFSMimeTypesManagerImpl::DoAssociation(const wxString& strType,
 113                        const wxString& strIcon,
 114                        wxMimeTypeCommands *entry,
 115                        const wxArrayString& strExtensions,
 116                        const wxString& strDesc)
 117 {
 118     return AddToMimeData
 119            (
 120             strType,
 121             strIcon,
 122             entry,
 123             strExtensions,
 124             strDesc,
 125             true
 126            ) != wxNOT_FOUND;
 127 }
 128
 129 //----------------------------------------------------------------------------
 130 // wxGnomeVFSModule
 131 //----------------------------------------------------------------------------
 132
 133 class wxGnomeVFSModule: public wxModule
 134 {
 135 public:
 136     wxGnomeVFSModule() {}
 137     bool OnInit();
 138     void OnExit();
 139
 140 private:
 141     DECLARE_DYNAMIC_CLASS(wxGnomeVFSModule)
 142 };
 143
 144 bool wxGnomeVFSModule::OnInit()
 145 {
 146     gs_lgvfs = new wxGnomeVFSLibrary;
 147     if (gs_lgvfs->IsOk())
 148     {
 149         if (gs_lgvfs->gnome_vfs_init())
 150             wxMimeTypesManagerFactory::Set( new wxGnomeVFSMimeTypesManagerFactory );
 151     }
 152     return true;
 153 }
 154
 155 void wxGnomeVFSModule::OnExit()
 156 {
 157     if (gs_lgvfs->IsOk())
 158         gs_lgvfs->gnome_vfs_shutdown();
 159
 160     delete gs_lgvfs;
 161 }
 162
 163 IMPLEMENT_DYNAMIC_CLASS(wxGnomeVFSModule, wxModule)
 164
 165 #endif // wxUSE_LIBGNOMEVFS && wxUSE_MIMETYPE