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 // RCS-ID:      $Id$
   7 // Copyright:   Robert Roebling
   8 // Licence:     wxWindows Licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx/wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #ifdef __BORLANDC__
  15     #pragma hdrstop
  16 #endif
  17
  18 #if wxUSE_MIMETYPE && wxUSE_LIBGNOMEVFS
  19
  20 #include "wx/gtk/gnome/gvfs.h"
  21
  22 #ifndef WX_PRECOMP
  23     #include "wx/log.h"
  24     #include "wx/module.h"
  25 #endif
  26
  27 #include "wx/mimetype.h"
  28 #include "wx/dynlib.h"
  29
  30 #include <libgnomevfs/gnome-vfs-mime-handlers.h>
  31
  32 #include "wx/link.h"
  33 wxFORCE_LINK_THIS_MODULE(gnome_vfs)
  34
  35 //----------------------------------------------------------------------------
  36 // wxGnomeVFSLibrary
  37 //----------------------------------------------------------------------------
  38
  39 class wxGnomeVFSLibrary
  40 {
  41 public:
  42     wxGnomeVFSLibrary();
  43     ~wxGnomeVFSLibrary();
  44     bool IsOk();
  45
  46 private:
  47     bool InitializeMethods();
  48
  49     wxDynamicLibrary m_libGnomeVFS;
  50
  51     // only true if we successfully loaded the library above
  52     //
  53     // don't rename this field, it's used by wxDL_XXX macros internally
  54     bool m_ok;
  55
  56 public:
  57     wxDL_METHOD_DEFINE( gboolean, gnome_vfs_init,
  58         (), (), FALSE )
  59     wxDL_VOIDMETHOD_DEFINE( gnome_vfs_shutdown,
  60         (), () )
  61
  62     wxDL_METHOD_DEFINE( GnomeVFSResult, gnome_vfs_mime_set_icon,
  63         (const char *mime_type, const char *filename), (mime_type, filename), GNOME_VFS_OK )
  64 };
  65
  66 wxGnomeVFSLibrary::wxGnomeVFSLibrary()
  67 {
  68     wxLogNull log;
  69
  70     m_libGnomeVFS.Load("libgnomevfs-2.so.0");
  71     m_ok = m_libGnomeVFS.IsLoaded() && InitializeMethods();
  72 }
  73
  74 wxGnomeVFSLibrary::~wxGnomeVFSLibrary()
  75 {
  76     // we crash on exit later (i.e. after main() finishes) if we unload this
  77     // library, apparently it inserts some hooks in other libraries to which we
  78     // link implicitly (GTK+ itself?) which are not uninstalled when it's
  79     // unloaded resulting in this crash, so just leave it in memory -- it's a
  80     // lesser evil
  81     m_libGnomeVFS.Detach();
  82 }
  83
  84 bool wxGnomeVFSLibrary::IsOk()
  85 {
  86     return m_ok;
  87 }
  88
  89 bool wxGnomeVFSLibrary::InitializeMethods()
  90 {
  91     wxDL_METHOD_LOAD( m_libGnomeVFS, gnome_vfs_init );
  92     wxDL_METHOD_LOAD( m_libGnomeVFS, gnome_vfs_shutdown );
  93
  94     return true;
  95 }
  96
  97 static wxGnomeVFSLibrary* gs_lgvfs = NULL;
  98
  99 //----------------------------------------------------------------------------
 100 // wxGnomeVFSMimeTypesManagerFactory
 101 //----------------------------------------------------------------------------
 102
 103 wxMimeTypesManagerImpl *wxGnomeVFSMimeTypesManagerFactory::CreateMimeTypesManagerImpl()
 104 {
 105     return new wxGnomeVFSMimeTypesManagerImpl;
 106 }
 107
 108
 109 //----------------------------------------------------------------------------
 110 // wxGnomeVFSMimeTypesManagerImpl
 111 //----------------------------------------------------------------------------
 112
 113 bool wxGnomeVFSMimeTypesManagerImpl::DoAssociation(const wxString& strType,
 114                        const wxString& strIcon,
 115                        wxMimeTypeCommands *entry,
 116                        const wxArrayString& strExtensions,
 117                        const wxString& strDesc)
 118 {
 119     int nIndex = AddToMimeData(strType, strIcon, entry, strExtensions, strDesc, true);
 120
 121     if ( nIndex == wxNOT_FOUND )
 122         return false;
 123
 124     if (m_mailcapStylesInited & wxMAILCAP_GNOME)
 125     {
 126         // User modificationt to the MIME database
 127         // are not supported :-)
 128     }
 129
 130     return false;
 131 }
 132
 133 //----------------------------------------------------------------------------
 134 // wxGnomeVFSModule
 135 //----------------------------------------------------------------------------
 136
 137 class wxGnomeVFSModule: public wxModule
 138 {
 139 public:
 140     wxGnomeVFSModule() {}
 141     bool OnInit();
 142     void OnExit();
 143
 144 private:
 145     DECLARE_DYNAMIC_CLASS(wxGnomeVFSModule)
 146 };
 147
 148 bool wxGnomeVFSModule::OnInit()
 149 {
 150     gs_lgvfs = new wxGnomeVFSLibrary;
 151     if (gs_lgvfs->IsOk())
 152     {
 153         if (gs_lgvfs->gnome_vfs_init())
 154             wxMimeTypesManagerFactory::Set( new wxGnomeVFSMimeTypesManagerFactory );
 155     }
 156     return true;
 157 }
 158
 159 void wxGnomeVFSModule::OnExit()
 160 {
 161     if (gs_lgvfs->IsOk())
 162         gs_lgvfs->gnome_vfs_shutdown();
 163
 164     delete gs_lgvfs;
 165 }
 166
 167 IMPLEMENT_DYNAMIC_CLASS(wxGnomeVFSModule, wxModule)
 168
 169 #endif // wxUSE_LIBGNOMEVFS && wxUSE_MIMETYPE