src/apps/webpositive/BrowsingHistory.h

   1 /*
   2  * Copyright (C) 2010 Stephan Aßmus <superstippi@gmx.de>
   3  *
   4  * All rights reserved. Distributed under the terms of the MIT License.
   5  */
   6 #ifndef BROWSING_HISTORY_H
   7 #define BROWSING_HISTORY_H
   8
   9 #include "DateTime.h"
  10 #include <List.h>
  11 #include <Locker.h>
  12
  13 class BFile;
  14 class BString;
  15
  16
  17 class BrowsingHistoryItem {
  18 public:
  19                                                                 BrowsingHistoryItem(const BString& url);
  20                                                                 BrowsingHistoryItem(
  21                                                                         const BrowsingHistoryItem& other);
  22                                                                 BrowsingHistoryItem(const BMessage* archive);
  23                                                                 ~BrowsingHistoryItem();
  24
  25                         status_t                        Archive(BMessage* archive) const;
  26
  27                         BrowsingHistoryItem& operator=(const BrowsingHistoryItem& other);
  28
  29                         bool                            operator==(
  30                                                                         const BrowsingHistoryItem& other) const;
  31                         bool                            operator!=(
  32                                                                         const BrowsingHistoryItem& other) const;
  33                         bool                            operator<(
  34                                                                         const BrowsingHistoryItem& other) const;
  35                         bool                            operator<=(
  36                                                                         const BrowsingHistoryItem& other) const;
  37                         bool                            operator>(
  38                                                                         const BrowsingHistoryItem& other) const;
  39                         bool                            operator>=(
  40                                                                         const BrowsingHistoryItem& other) const;
  41
  42                         const BString&          URL() const { return fURL; }
  43                         const BDateTime&        DateTime() const { return fDateTime; }
  44                         uint32                          InvokationCount() const {
  45                                                                         return fInvokationCount; }
  46                         void                            Invoked();
  47
  48 private:
  49                         BString                         fURL;
  50                         BDateTime                       fDateTime;
  51                         uint32                          fInvokationCount;
  52 };
  53
  54
  55 class BrowsingHistory : public BLocker {
  56 public:
  57         static  BrowsingHistory*        DefaultInstance();
  58
  59                         bool                            AddItem(const BrowsingHistoryItem& item);
  60
  61         // Should Lock() the object when using these in some loop or so:
  62                         int32                           CountItems() const;
  63                         BrowsingHistoryItem     HistoryItemAt(int32 index) const;
  64                         void                            Clear();
  65
  66                         void                            SetMaxHistoryItemAge(int32 days);
  67                         int32                           MaxHistoryItemAge() const;
  68
  69 private:
  70                                                                 BrowsingHistory();
  71         virtual                                         ~BrowsingHistory();
  72
  73                         void                            _Clear();
  74                         bool                            _AddItem(const BrowsingHistoryItem& item,
  75                                                                         bool invoke);
  76
  77                         void                            _LoadSettings();
  78                         void                            _SaveSettings();
  79                         bool                            _OpenSettingsFile(BFile& file, uint32 mode);
  80
  81 private:
  82                         BList                           fHistoryItems;
  83                         int32                           fMaxHistoryItemAge;
  84
  85         static  BrowsingHistory         sDefaultInstance;
  86                         bool                            fSettingsLoaded;
  87 };
  88
  89
  90 #endif // BROWSING_HISTORY_H
  91