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217 lines
7.3 KiB
217 lines
7.3 KiB
/*
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This file is part of KMail, the KDE mail client.
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Copyright (c) 2000 Don Sanders <sanders@kde.org>
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KMail is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License, version 2, as
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published by the Free Software Foundation.
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KMail is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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// Dynamic search folder
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#ifndef kmfoldersearch_h
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#define kmfoldersearch_h
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#include <qguardedptr.h>
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#include <qvaluelist.h>
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#include <qvaluevector.h>
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#include <qvaluestack.h>
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#include <qmap.h>
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#include "kmfolder.h"
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#include "folderstorage.h"
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/** A search folder is a folder that shows the result of evaluating a
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search expression. This folder is dynamically updated as the
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search expression is applied to new mail (from a pop or imap server
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or from a local account).
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The index for a search folder consists of a cache of serial
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numbers of all messages that currently match the search.
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**/
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typedef QValueList<Q_UINT32> SerNumList;
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class KMSearchPattern;
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class KMFolderImap;
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class KMFolderSearchJob;
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class KMIndexSearchTarget;
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class QTimer;
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namespace KMail {
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class AttachmentStrategy;
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}
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using KMail::AttachmentStrategy;
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class KMSearch: public QObject
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{
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Q_OBJECT
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public:
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KMSearch(QObject * parent = 0, const char * name = 0);
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~KMSearch();
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bool write(QString location) const;
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bool read(QString location);
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bool recursive() const { return mRecursive; }
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void setRecursive(bool recursive) { if (running()) stop(); mRecursive = recursive; }
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KMFolder* root() const { return mRoot; }
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void setRoot(KMFolder *folder) { if (running()) stop(); mRoot = folder; }
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bool inScope(KMFolder* folder) const;
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//Takes ownership of @searchPattern
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void setSearchPattern(KMSearchPattern *searchPattern);
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KMSearchPattern* searchPattern() const { return mSearchPattern; }
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void start();
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bool running() const { return mRunning; }
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void stop();
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int foundCount() const { return mFoundCount; }
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int searchCount() const { return mSearchCount; }
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QString currentFolder() const { return mLastFolder; }
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public slots:
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void indexFinished();
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signals:
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void found(Q_UINT32 serNum);
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void finished(bool success);
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protected slots:
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void slotProcessNextBatch();
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void slotSearchFolderResult( KMFolder*, QValueList<Q_UINT32>,
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const KMSearchPattern*, bool );
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protected:
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friend class ::KMIndexSearchTarget;
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void setRunning(bool b) { mRunning = b; }
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void setFoundCount(int f) { mFoundCount = f; }
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void setCurrentFolder(const QString &f) { mLastFolder = f; }
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private:
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int mRemainingFolders;
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bool mRecursive, mRunning, mIdle, mRunByIndex;
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QGuardedPtr<KMFolder> mRoot;
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KMSearchPattern* mSearchPattern;
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QValueList<QGuardedPtr<KMFolder> > mFolders, mOpenedFolders;
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QValueList<QGuardedPtr<KMFolderImap> > mIncompleteFolders;
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SerNumList mSerNums;
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QString mLastFolder;
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int mFoundCount;
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int mSearchCount;
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QTimer *mProcessNextBatchTimer;
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};
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class KMFolderSearch: public FolderStorage
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{
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Q_OBJECT
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friend class ::KMFolderSearchJob;
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public:
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KMFolderSearch(KMFolder* folder, const char* name=0);
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virtual ~KMFolderSearch();
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/** Returns the type of this folder */
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virtual KMFolderType folderType() const { return KMFolderTypeSearch; }
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// Sets and runs the search used by the folder
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void setSearch(KMSearch *search);
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// Returns the current search used by the folder
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const KMSearch* search() const;
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// Stops the current search
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void stopSearch() { if (mSearch) mSearch->stop(); }
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virtual KMMessage* getMsg(int idx);
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virtual void ignoreJobsForMessage( KMMessage* );
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virtual void tryReleasingFolder(KMFolder* folder);
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/** Returns true if this folder can be moved */
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virtual bool isMoveable() const { return false; }
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protected slots:
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// Reads search definition for this folder and creates a KMSearch
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bool readSearch();
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// Runs the current search again
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void executeSearch();
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// Called when the search is finished
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void searchFinished(bool success);
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// Look at a new message and if it matches search() add it to the cache
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void examineAddedMessage(KMFolder *folder, Q_UINT32 serNum);
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// Look at a removed message and remove it from the cache
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void examineRemovedMessage(KMFolder *folder, Q_UINT32 serNum);
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// Look at a message whose status has changed
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void examineChangedMessage(KMFolder *folder, Q_UINT32 serNum, int delta);
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// The serial numbers for a folder have been invalidated, deal with it
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void examineInvalidatedFolder(KMFolder *folder);
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// A folder has been deleted, deal with it
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void examineRemovedFolder(KMFolder *folder);
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// Propagate the msgHeaderChanged signal
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void propagateHeaderChanged(KMFolder *folder, int idx);
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public slots:
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// Appends the serial number to the cached list of messages that match
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// the search for this folder
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void addSerNum(Q_UINT32 serNum);
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// Removes the serial number from the cached list of messages that match
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// the search for this folder
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void removeSerNum(Q_UINT32 serNum);
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/** Incrementally update the index if possible else call writeIndex */
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virtual int updateIndex();
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// Examine the message
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void slotSearchExamineMsgDone( KMFolder*, Q_UINT32 serNum,
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const KMSearchPattern*, bool );
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public:
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//See base class for documentation
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virtual int addMsg(KMMessage* msg, int* index_return = 0);
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virtual int open(const char *owner);
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virtual int canAccess();
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virtual void sync();
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virtual void reallyDoClose(const char* owner);
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virtual int create();
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virtual int compact( bool );
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virtual bool isReadOnly() const;
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virtual const KMMsgBase* getMsgBase(int idx) const;
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virtual KMMsgBase* getMsgBase(int idx);
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virtual int find(const KMMsgBase* msg) const;
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virtual QString indexLocation() const;
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virtual int writeIndex( bool createEmptyIndex = false );
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DwString getDwString(int idx);
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Q_UINT32 serNum(int idx) { return mSerNums[idx]; }
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protected:
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virtual FolderJob* doCreateJob(KMMessage *msg, FolderJob::JobType jt,
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KMFolder *folder, QString partSpecifier,
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const AttachmentStrategy *as ) const;
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virtual FolderJob* doCreateJob(QPtrList<KMMessage>& msgList, const QString& sets,
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FolderJob::JobType jt, KMFolder *folder) const;
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virtual KMMessage* readMsg(int idx);
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virtual bool readIndex();
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virtual int removeContents();
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virtual int expungeContents();
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virtual int count(bool cache = false) const;
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virtual KMMsgBase* takeIndexEntry(int idx);
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virtual KMMsgInfo* setIndexEntry(int idx, KMMessage *msg);
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virtual void clearIndex(bool autoDelete=true, bool syncDict = false);
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virtual void truncateIndex();
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private:
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QValueVector<Q_UINT32> mSerNums;
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QValueList<QGuardedPtr<KMFolder> > mFolders;
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QValueStack<Q_UINT32> mUnexaminedMessages;
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FILE *mIdsStream;
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KMSearch *mSearch;
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bool mInvalid, mUnlinked;
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bool mTempOpened;
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QTimer *mExecuteSearchTimer;
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QMap<const KMFolder*, unsigned int>mFoldersCurrentlyBeingSearched;
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};
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#endif /*kmfoldersearch_h*/
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