1 /* 2 Open Tracker License 3 4 Terms and Conditions 5 6 Copyright (c) 1991-2000, Be Incorporated. All rights reserved. 7 8 Permission is hereby granted, free of charge, to any person obtaining a copy of 9 this software and associated documentation files (the "Software"), to deal in 10 the Software without restriction, including without limitation the rights to 11 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 12 of the Software, and to permit persons to whom the Software is furnished to do 13 so, subject to the following conditions: 14 15 The above copyright notice and this permission notice applies to all licensees 16 and shall be included in all copies or substantial portions of the Software. 17 18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF TITLE, MERCHANTABILITY, 20 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 BE INCORPORATED BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 22 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION 23 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 25 Except as contained in this notice, the name of Be Incorporated shall not be 26 used in advertising or otherwise to promote the sale, use or other dealings in 27 this Software without prior written authorization from Be Incorporated. 28 29 Tracker(TM), Be(R), BeOS(R), and BeIA(TM) are trademarks or registered trademarks 30 of Be Incorporated in the United States and other countries. Other brand product 31 names are registered trademarks or trademarks of their respective holders. 32 All rights reserved. 33 */ 34 #ifndef _QUERY_POSE_VIEW_H 35 #define _QUERY_POSE_VIEW_H 36 37 38 #include "EntryIterator.h" 39 #include "PoseView.h" 40 41 42 class BQuery; 43 44 namespace BPrivate { 45 46 class BQueryContainerWindow; 47 class QueryEntryListCollection; 48 49 50 class BQueryPoseView : public BPoseView { 51 public: 52 BQueryPoseView(Model*); 53 virtual ~BQueryPoseView(); 54 55 virtual void MessageReceived(BMessage* message); 56 57 const char* SearchForType() const; 58 BQueryContainerWindow* ContainerWindow() const; 59 bool ActiveOnDevice(dev_t) const; 60 61 void Refresh(); 62 // makes queries that are static but need to appear dynamic 63 // live - for instance for a query that contains a 64 // date == today - RestartQuery gets called on midnight to update 65 // the contents 66 67 protected: 68 virtual void AttachedToWindow(); 69 virtual void RestoreState(AttributeStreamNode*); 70 virtual void RestoreState(const BMessage&); 71 virtual void SavePoseLocations(BRect* = NULL); 72 virtual void SetUpDefaultColumnsIfNeeded(); 73 virtual void SetViewMode(uint32); 74 virtual void OpenParent(); 75 virtual void EditQueries(); 76 virtual EntryListBase* InitDirentIterator(const entry_ref*); 77 virtual uint32 WatchNewNodeMask(); 78 virtual void AddPosesCompleted(); 79 80 private: 81 // list of all the queries this PoseView represents 82 // typically there will be one query per volume specified 83 // QueryEntryListCollection provides the abstraction layer 84 // defining the iterators for _add_poses_ 85 mutable BString fSearchForMimeType; 86 87 BRefFilter* fRefFilter; 88 BObjectList<BQuery>* fQueryList; 89 QueryEntryListCollection* fQueryListContainer; 90 91 bool fCreateOldPoseList; 92 93 typedef BPoseView _inherited; 94 }; 95 96 97 class QueryRefFilter : public BRefFilter { 98 public: 99 QueryRefFilter(bool showResultsFromTrash); 100 bool Filter(const entry_ref* ref, BNode* node, stat_beos* st, 101 const char* filetype); 102 103 private: 104 bool fShowResultsFromTrash; 105 }; 106 107 108 class QueryEntryListCollection : public EntryListBase { 109 // This will become a replacement for BDirectory and QueryList in a 110 // PoseView, allowing PoseView to have an arbitrary collection of 111 // elements that behave as an EntryList 112 // For now just manage a list of BQueries 113 114 class QueryListRep { 115 public: 116 QueryListRep(BObjectList<BQuery>* queryList) 117 : 118 fQueryList(queryList), 119 fRefCount(0), 120 fShowResultsFromTrash(false), 121 fQueryListIndex(-1), 122 fDynamicDateQuery(false), 123 fRefreshEveryHour(false), 124 fRefreshEveryMinute(false), 125 fOldPoseList(NULL) 126 { 127 } 128 129 ~QueryListRep() 130 { 131 ASSERT(fRefCount <= 0); 132 delete fQueryList; 133 delete fOldPoseList; 134 } 135 136 BObjectList<BQuery>* OpenQueryList() 137 { 138 fRefCount++; 139 return fQueryList; 140 } 141 142 bool CloseQueryList() 143 { 144 return atomic_add(&fRefCount, -1) == 0; 145 } 146 147 BObjectList<BQuery>* fQueryList; 148 int32 fRefCount; 149 bool fShowResultsFromTrash; 150 int32 fQueryListIndex; 151 bool fDynamicDateQuery; 152 bool fRefreshEveryHour; 153 bool fRefreshEveryMinute; 154 155 PoseList* fOldPoseList; 156 // when doing a Refresh, this list is used to detect poses that 157 // are no longer a part of a fDynamicDateQuery and need to be 158 // removed 159 }; 160 161 public: 162 QueryEntryListCollection(Model*, BHandler* = NULL, 163 PoseList* oldPoseList = NULL); 164 virtual ~QueryEntryListCollection(); 165 166 QueryEntryListCollection* Clone(); 167 168 BObjectList<BQuery>* QueryList() const 169 { 170 return fQueryListRep->fQueryList; 171 } 172 173 PoseList* OldPoseList() const 174 { 175 return fQueryListRep->fOldPoseList; 176 } 177 void ClearOldPoseList(); 178 179 virtual status_t GetNextEntry(BEntry* entry, bool traverse = false); 180 virtual status_t GetNextRef(entry_ref* ref); 181 virtual int32 GetNextDirents(struct dirent* buffer, size_t length, 182 int32 count = INT_MAX); 183 184 virtual status_t Rewind(); 185 virtual int32 CountEntries(); 186 187 bool ShowResultsFromTrash() const; 188 bool DynamicDateQuery() const; 189 bool DynamicDateRefreshEveryHour() const; 190 bool DynamicDateRefreshEveryMinute() const; 191 192 private: 193 QueryEntryListCollection(const QueryEntryListCollection&); 194 // only to be used by the Clone routine 195 status_t FetchOneQuery(const BQuery*, BHandler* target, 196 BObjectList<BQuery>*, BVolume*); 197 198 QueryListRep* fQueryListRep; 199 }; 200 201 } // namespace BPrivate 202 203 using namespace BPrivate; 204 205 206 #endif // _QUERY_POSE_VIEW_H 207