headers/private/storage/mime/MimeSnifferAddonManager.h

   1 /*
   2  * Copyright 2006-2013, Ingo Weinhold, ingo_weinhold@gmx.de.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef _MINE_MIME_SNIFFER_ADDON_MANAGER_H
   6 #define _MINE_MIME_SNIFFER_ADDON_MANAGER_H
   7
   8
   9 #include <List.h>
  10 #include <Locker.h>
  11
  12
  13 #include <mime/MimeSniffer.h>
  14
  15
  16 class BFile;
  17 class BMimeSnifferAddon;
  18 class BMimeType;
  19
  20
  21 namespace BPrivate {
  22 namespace Storage {
  23 namespace Mime {
  24
  25
  26 class MimeSnifferAddonManager : public BPrivate::Storage::Mime::MimeSniffer {
  27 private:
  28                                                                 MimeSnifferAddonManager();
  29                                                                 ~MimeSnifferAddonManager();
  30
  31 public:
  32         static  MimeSnifferAddonManager* Default();
  33         static  status_t                        CreateDefault();
  34         static  void                            DeleteDefault();
  35
  36                         status_t                        AddMimeSnifferAddon(BMimeSnifferAddon* addon);
  37
  38         virtual size_t                          MinimalBufferSize();
  39
  40         virtual float                           GuessMimeType(const char* fileName,
  41                                                                         BMimeType* type);
  42         virtual float                           GuessMimeType(BFile* file,
  43                                                                         const void* buffer, int32 length,
  44                                                                         BMimeType* type);
  45
  46 private:
  47                         struct AddonReference;
  48
  49                         status_t                        _GetAddons(AddonReference**& references,
  50                                                                         int32& count);
  51                         void                            _PutAddons(AddonReference** references,
  52                                                                         int32 count);
  53
  54                         static MimeSnifferAddonManager* sManager;
  55
  56                         BLocker                         fLock;
  57                         BList                           fAddons;
  58                         size_t                          fMinimalBufferSize;
  59 };
  60
  61 }       // namespace Mime
  62 }       // namespace Storage
  63 }       // namespace BPrivate
  64
  65
  66 #endif  // _MINE_MIME_SNIFFER_ADDON_MANAGER_H
  67