1 /* 2 * Copyright (C) 2013 Nicolas Bonnefon and other contributors 3 * 4 * This file is part of glogg. 5 * 6 * glogg is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation, either version 3 of the License, or 9 * (at your option) any later version. 10 * 11 * glogg is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with glogg. If not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #ifndef SESSION_H 21 #define SESSION_H 22 23 #include <memory> 24 #include <unordered_map> 25 #include <string> 26 27 #include <QDateTime> 28 29 #include "quickfindpattern.h" 30 31 class ViewInterface; 32 class LogData; 33 class LogFilteredData; 34 class SavedSearches; 35 36 // The session is responsible for maintaining the list of open log files 37 // and their association with Views. 38 // It also maintains the domain objects which are common to all log files 39 // (SavedSearches, FileHistory, QFPattern...) 40 class Session { 41 public: 42 Session(); 43 ~Session(); 44 45 // No copy/assignment please 46 Session( const Session& ) = delete; 47 Session& operator =( const Session& ) = delete; 48 49 // Return the view associated to a file if it is open 50 // The filename must be strictly identical to trigger a match 51 // (no match in case of e.g. relative vs. absolute pathname. 52 ViewInterface* getViewIfOpen( const std::string& file_name ) const; 53 // Open a new file, starts its asynchronous loading, and construct a new 54 // view for it (the caller passes a factory to build the concrete view) 55 // The ownership of the view is given to the caller 56 // Throw exceptions if the file is already open or if it cannot be open. 57 ViewInterface* open( const std::string& file_name, 58 std::function<ViewInterface*()> view_factory ); 59 // Close the file identified by the view passed 60 // Throw an exception if it does not exist. 61 void close( const ViewInterface* view ); 62 // Get the size (in bytes) and number of lines in the current file. 63 // The file is identified by the view attached to it. 64 void getFileInfo( const ViewInterface* view, uint64_t* fileSize, 65 uint32_t* fileNbLine, QDateTime* lastModified ) const; 66 // Get a (non-const) reference to the QuickFind pattern. 67 std::shared_ptr<QuickFindPattern> getQuickFindPattern() const 68 { return quickFindPattern_; } 69 70 private: 71 struct OpenFile { 72 std::string fileName; 73 std::shared_ptr<LogData> logData; 74 std::shared_ptr<LogFilteredData> logFilteredData; 75 ViewInterface* view; 76 }; 77 78 // Open a file without checking if it is existing/readable 79 ViewInterface* openAlways( const std::string& file_name, 80 std::function<ViewInterface*()> view_factory ); 81 // Find an open file from its associated view 82 OpenFile* findOpenFileFromView( const ViewInterface* view ); 83 const OpenFile* findOpenFileFromView( const ViewInterface* view ) const; 84 85 // List of open files 86 typedef std::unordered_map<const ViewInterface*, OpenFile> OpenFileMap; 87 OpenFileMap openFiles_; 88 89 // Global search history 90 std::shared_ptr<SavedSearches> savedSearches_; 91 92 // Global quickfind pattern 93 std::shared_ptr<QuickFindPattern> quickFindPattern_; 94 }; 95 96 #endif 97