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Diffstat (limited to 'kmail/kmfolder.h')
| -rw-r--r-- | kmail/kmfolder.h | 694 |
1 files changed, 694 insertions, 0 deletions
diff --git a/kmail/kmfolder.h b/kmail/kmfolder.h new file mode 100644 index 00000000..db13ae8c --- /dev/null +++ b/kmail/kmfolder.h @@ -0,0 +1,694 @@ +/* -*- mode: C++ -*- + * kmail: KDE mail client + * Copyright (c) 1996-1998 Stefan Taferner <taferner@kde.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ +#ifndef kmfolder_h +#define kmfolder_h + +// for large file support +#include <config.h> + +#include "kmfoldernode.h" +#include "kmfoldertype.h" +#include "kmmsginfo.h" +#include "kmglobal.h" +#include "kmkernel.h" +#include "folderjob.h" +using KMail::FolderJob; +#include "mailinglist-magic.h" +using KMail::MailingList; +#include "kmaccount.h" // for AccountList + +#include "mimelib/string.h" + +#include <qptrvector.h> +#include <sys/types.h> +#include <stdio.h> +#include <kshortcut.h> + +class KMMessage; +class KMFolderDir; +class QTimer; +class FolderStorage; +class KMFolderTreeItem; +class KMFolderJob; + +namespace KMail { + class AttachmentStrategy; +} +using KMail::AttachmentStrategy; + +typedef QValueList<Q_UINT32> SerNumList; + +/** Mail folder. + * (description will be here). + * + * @section Accounts + * The accounts (of KMail) that are fed into the folder are + * represented as the children of the folder. They are only stored here + * during runtime to have a reference for which accounts point to a + * specific folder. + */ + +class KMFolder: public KMFolderNode +{ + Q_OBJECT + friend class ::KMFolderJob; +public: + + /** + * Constructs a new Folder object. + * @param parent The directory in the folder storage hierarchy under which + * the folder's storage will be found or created. + * @param name If name of the folder. In case there is no parent directory, because + * the folder is free-standing (/var/spool/mail/foo), this is used for the full path to + * the folder's storage location. + * @param aFolderType The type of folder to create. + * @param withIndex Wether this folder has an index. No-index folders are + * those used by KMail internally, the Outbox, and those of local spool accounts, + * for example. + * @param exportedSernums whether this folder exports its serial numbers to + * the global MsgDict for lookup. + * @return A new folder instance. + */ + KMFolder( KMFolderDir* parent, const QString& name, + KMFolderType aFolderType, bool withIndex = true, + bool exportedSernums = true ); + ~KMFolder(); + + /** Returns true if this folder is the inbox on the local disk */ + bool isMainInbox() { + return this == KMKernel::self()->inboxFolder(); + } + /** Returns true only if this is the outbox for outgoing mail */ + bool isOutbox() { + return this == KMKernel::self()->outboxFolder(); + } + /** Returns true if this folder is the sent-mail box of the local account, + or is configured to be the sent mail box of any of the users identities */ + bool isSent() { + return KMKernel::self()->folderIsSentMailFolder( this ); + } + /** Returns true if this folder is configured as a trash folder, locally or + for one of the accounts. */ + bool isTrash() { + return KMKernel::self()->folderIsTrash( this ); + } + /** Returns true if this folder is the drafts box of the local account, + or is configured to be the drafts box of any of the users identities */ + bool isDrafts() { + return KMKernel::self()->folderIsDrafts( this ); + } + /** Returns true if this folder is the templates folder of the local account, + or is configured to be the templates folder of any of the users identities */ + bool isTemplates() { + return KMKernel::self()->folderIsTemplates( this ); + } + + void setAcctList( AccountList* list ) { mAcctList = list; } + AccountList* acctList() { return mAcctList; } + + /** Returns TRUE if accounts are associated with this folder. */ + bool hasAccounts() const { return (mAcctList != 0); } + + /** This is used by the storage to read the folder specific configuration */ + void readConfig( KConfig* config ); + + /** This is used by the storage to save the folder specific configuration */ + void writeConfig( KConfig* config ) const; + + FolderStorage* storage() { return mStorage; } + /** if the folder is const, the storage should be as well */ + const FolderStorage* storage() const { return mStorage; } + + /** Returns the type of this folder */ + KMFolderType folderType() const; + + /** Returns the filename of the folder (reimplemented in KMFolderImap) */ + QString fileName() const; + + /** Returns full path to folder file */ + QString location() const; + + /** Returns full path to index file */ + QString indexLocation() const; + + /** Returns full path to sub directory file */ + QString subdirLocation() const; + + /** Returns the folder directory associated with this node or + 0 if no such directory exists */ + KMFolderDir* child() const + { return mChild; } + + /** Create a child folder directory and associates it with this folder */ + KMFolderDir* createChildFolder(); + + /** Set the folder directory associated with this node */ + void setChild( KMFolderDir* aChild ); + + /** Returns, if the folder can't contain mails, but only subfolder */ + bool noContent() const; + + /** Specify, that the folder can't contain mails. */ + void setNoContent(bool aNoContent); + + /** Returns, if the folder can't have children */ + bool noChildren() const; + + /** Specify, that the folder can't have children */ + void setNoChildren(bool aNoChildren); + + /** Read message at given index. Indexing starts at zero */ + KMMessage* getMsg(int idx); + + /** Replace KMMessage with KMMsgInfo and delete KMMessage */ + KMMsgInfo* unGetMsg(int idx); + + /** Checks if the message is already "gotten" with getMsg */ + bool isMessage(int idx); + + /** Read a message and returns a DwString */ + DwString getDwString(int idx); + + /** + * Removes and deletes all jobs associated with the particular message + */ + void ignoreJobsForMessage( KMMessage* ); + + /** + * These methods create respective FolderJob (You should derive FolderJob + * for each derived KMFolder). + */ + FolderJob* createJob( KMMessage *msg, FolderJob::JobType jt = FolderJob::tGetMessage, + KMFolder *folder = 0, QString partSpecifier = QString::null, + const AttachmentStrategy *as = 0 ) const; + FolderJob* createJob( QPtrList<KMMessage>& msgList, const QString& sets, + FolderJob::JobType jt = FolderJob::tGetMessage, + KMFolder *folder = 0 ) const; + + /** Provides access to the basic message fields that are also stored + in the index. Whenever you only need subject, from, date, status + you should use this method instead of getMsg() because getMsg() + will load the message if necessary and this method does not. */ + const KMMsgBase* getMsgBase(int idx) const; + KMMsgBase* getMsgBase(int idx); + + /** Same as getMsgBase(int). */ + const KMMsgBase* operator[](int idx) const; + + /** Same as getMsgBase(int). This time non-const. */ + KMMsgBase* operator[](int idx); + + /** Detach message from this folder. Usable to call addMsg() afterwards. + Loads the message if it is not loaded up to now. */ + KMMessage* take(int idx); + void take(QPtrList<KMMessage> msgList); + + /** Add the given message to the folder. Usually the message + is added at the end of the folder. Returns zero on success and + an errno error code on failure. The index of the new message + is stored in index_return if given. + Please note that the message is added as is to the folder and the folder + takes ownership of the message (deleting it in the destructor).*/ + int addMsg(KMMessage* msg, int* index_return = 0); + + /** (Note(bo): This needs to be fixed better at a later point.) + This is overridden by dIMAP because addMsg strips the X-UID + header from the mail. */ + int addMsgKeepUID(KMMessage* msg, int* index_return = 0); + + /** + * Adds the given messages to the folder. Behaviour is identical + * to addMsg(msg) + */ + int addMsg(QPtrList<KMMessage>&, QValueList<int>& index_return); + + /** Called by derived classes implementation of addMsg. + Emits msgAdded signals */ + void emitMsgAddedSignals(int idx); + + /** Remove (first occurrence of) given message from the folder. */ + void removeMsg(int i, bool imapQuiet = false); + void removeMsg(QPtrList<KMMessage> msgList, bool imapQuiet = false); + + /** Delete messages in the folder that are older than days. Return the + * number of deleted messages. */ + int expungeOldMsg(int days); + + /** Detaches the given message from it's current folder and + adds it to this folder. Returns zero on success and an errno error + code on failure. The index of the new message is stored in index_return + if given. */ + int moveMsg(KMMessage* msg, int* index_return = 0); + int moveMsg(QPtrList<KMMessage>, int* index_return = 0); + + /** Returns the index of the given message or -1 if not found. */ + int find(const KMMsgBase* msg) const; + int find( const KMMessage * msg ) const; + + /** Number of messages in this folder. */ + int count(bool cache = false) const; + + /** Number of new or unread messages in this folder. */ + int countUnread(); + + /** Number of new or unread messages in this folder and all folders + contained by this folder */ + int countUnreadRecursive(); + + /** Called by KMMsgBase::setStatus when status of a message has changed + required to keep the number unread messages variable current. */ + void msgStatusChanged( const KMMsgStatus oldStatus, + const KMMsgStatus newStatus, + int idx); + + /** Open folder for access. + Does nothing if the folder is already opened. To reopen a folder + call close() first. + Returns zero on success and an error code equal to the c-library + fopen call otherwise (errno). */ + int open(const char *owner); + + /** Check folder for permissions + Returns zero if readable and writable. */ + int canAccess(); + + /** Close folder. If force is true the files are closed even if + others still use it (e.g. other mail reader windows). */ + void close(const char *owner, bool force=false); + + /** fsync buffers to disk */ + void sync(); + + /** Test if folder is opened. */ + bool isOpened() const; + + /** Mark all new messages as unread. */ + void markNewAsUnread(); + + /** Mark all new and unread messages as read. */ + void markUnreadAsRead(); + + /** Removes the folder physically from disk and empties the contents + of the folder in memory. Note that the folder is closed during this + process, whether there are others using it or not. + see KMFolder::removeContents */ + void remove(); + + /** Delete entire folder. Forces a close *but* opens the + folder again afterwards. Returns errno(3) error code or zero on + success. see KMFolder::expungeContents */ + int expunge(); + + enum CompactOptions { CompactLater, CompactNow, CompactSilentlyNow }; + /** + * Compact this folder. Options: + * CompactLater: schedule it as a background task + * CompactNow: do it now, and inform the user of the result (manual compaction) + * CompactSilentlyNow: do it now, and keep silent about it (e.g. for outbox) + */ + void compact( CompactOptions options ); + + /** Physically rename the folder. Returns zero on success and an errno + on failure. */ + int rename(const QString& newName, KMFolderDir *aParent = 0); + + /** Returns true if the table of contents is dirty. This happens when + a message is deleted from the folder. The toc will then be re-created + when the folder is closed. */ + bool dirty() const; + + /** Change the dirty flag. */ + void setDirty(bool f); + + /** Returns true if the folder contains deleted messages */ + bool needsCompacting() const; + void setNeedsCompacting(bool f); + + /** If set to quiet the folder will not emit msgAdded(idx) signal. + This is necessary because adding the messages to the listview + one by one as they come in ( as happens on msgAdded(idx) ) is + very slow for large ( >10000 ) folders. For pop, where whole + bodies are downloaded this is not an issue, but for imap, where + we only download headers it becomes a bottleneck. We therefore + set the folder quiet() and rebuild the listview completely once + the complete folder has been checked. */ + void quiet(bool beQuiet); + + /** Is the folder read-only? */ + bool isReadOnly() const; + + /** Returns true if the folder is a kmail system folder. These are + the folders 'inbox', 'outbox', 'sent', 'trash', 'drafts', 'templates'. + The name of these folders is nationalized in the folder display and + they cannot have accounts associated. Deletion is also forbidden. Etc. */ + bool isSystemFolder() const { return mIsSystemFolder; } + void setSystemFolder(bool itIs) { mIsSystemFolder=itIs; } + + /** Returns the label of the folder for visualization. */ + virtual QString label() const; + void setLabel( const QString& l ) { mLabel = l; } + + /** Set the label that is used as a system default */ + virtual QString systemLabel() const { return mSystemLabel; } + void setSystemLabel( const QString& l ) { mSystemLabel = l; } + + /** URL of the node for visualization purposes. */ + virtual QString prettyURL() const; + + /** Returns true if this folder is associated with a mailing-list. */ + void setMailingListEnabled( bool enabled ); + bool isMailingListEnabled() const { return mMailingListEnabled; } + + void setMailingList( const MailingList& mlist ); + MailingList mailingList() const + { return mMailingList; } + QString mailingListPostAddress() const; + + void setIdentity(uint identity); + uint identity() const; + + /** Get / set the name of the field that is used for the Sender/Receiver column in the headers (From/To) */ + QString whoField() const { return mWhoField; } + void setWhoField(const QString& aWhoField); + + /** Get / set the user-settings for the WhoField (From/To/Empty) */ + QString userWhoField(void) { return mUserWhoField; } + void setUserWhoField(const QString &whoField,bool writeConfig=true); + + /** A cludge to help make sure the count of unread messges is kept in sync */ + void correctUnreadMsgsCount(); + + /** Returns a string that can be used to identify this folder */ + QString idString() const; + + /** + * Set whether this folder automatically expires messages. + */ + void setAutoExpire(bool enabled); + + /** + * Does this folder automatically expire old messages? + */ + bool isAutoExpire() const { return mExpireMessages; } + + /** + * Set the maximum age for unread messages in this folder. + * Age should not be negative. Units are set using + * setUnreadExpireUnits(). + */ + void setUnreadExpireAge(int age); + + /** + * Set units to use for expiry of unread messages. + * Values are 1 = days, 2 = weeks, 3 = months. + */ + void setUnreadExpireUnits(ExpireUnits units); + + /** + * Set the maximum age for read messages in this folder. + * Age should not be negative. Units are set using + * setReadExpireUnits(). + */ + void setReadExpireAge(int age); + + /** + * Set units to use for expiry of read messages. + * Values are 1 = days, 2 = weeks, 3 = months. + */ + void setReadExpireUnits(ExpireUnits units); + + /** + * Get the age at which unread messages are expired. + * Units are determined by getUnreadExpireUnits(). + */ + int getUnreadExpireAge() const { return mUnreadExpireAge; } + + /** + * Get the age at which read messages are expired. + * Units are determined by getReadExpireUnits(). + */ + int getReadExpireAge() const { return mReadExpireAge; } + + /** + * Units getUnreadExpireAge() is returned in. + * 1 = days, 2 = weeks, 3 = months. + */ + ExpireUnits getUnreadExpireUnits() const { return mUnreadExpireUnits; } + + /** + * Units getReadExpireAge() is returned in. + * 1 = days, 2 = weeks, 3 = months. + */ + ExpireUnits getReadExpireUnits() const { return mReadExpireUnits; } + + enum ExpireAction { ExpireDelete, ExpireMove }; + /** + * What should expiry do? Delete or move to another folder? + */ + ExpireAction expireAction() const { return mExpireAction; } + void setExpireAction( ExpireAction a ); + + /** + * If expiry should move to folder, return the ID of that folder + */ + QString expireToFolderId() const { return mExpireToFolderId; } + void setExpireToFolderId( const QString& id ); + + /** + * Expire old messages in this folder. + * If immediate is true, do it immediately; otherwise schedule it for later + */ + void expireOldMessages( bool immediate ); + + /** Write index to index-file. Returns 0 on success and errno error on + failure. */ + int writeIndex( bool createEmptyIndex = false ); + + /** Set the status of the message at index @p idx to @p status. */ + void setStatus(int idx, KMMsgStatus status, bool toggle=false); + + /** Set the status of the message(s) in the QValueList @p ids to @p status. */ + void setStatus(QValueList<int>& ids, KMMsgStatus status, bool toggle=false); + + /** Icon related methods */ + bool useCustomIcons() const { return mUseCustomIcons; } + void setUseCustomIcons(bool useCustomIcons) { mUseCustomIcons = useCustomIcons; } + QString normalIconPath() const { return mNormalIconPath; } + QString unreadIconPath() const { return mUnreadIconPath; } + void setIconPaths(const QString &normalPath, const QString &unreadPath); + + void removeJobs(); + + void daysToExpire( int& unreadDays, int& readDays ); + + /** + * If this folder has a special trash folder set, return it. Otherwise + * return 0. + */ + KMFolder* trashFolder() const; + + /** + * Returns true if the replies to mails from this folder should be + * put in the same folder. + */ + bool putRepliesInSameFolder() const { return mPutRepliesInSameFolder; } + void setPutRepliesInSameFolder( bool b ) { mPutRepliesInSameFolder = b; } + + /** + * Returns true if the user doesn't want to get notified about new mail + * in this folder. + */ + bool ignoreNewMail() const { return mIgnoreNewMail; } + void setIgnoreNewMail( bool b ) { mIgnoreNewMail = b; } + + const KShortcut &shortcut() const { return mShortcut; } + void setShortcut( const KShortcut& ); + + /** Returns true if this folder can be moved */ + bool isMoveable() const; + + /** Returns true if there is currently a move or copy operation going + on with this folder as target. + */ + bool moveInProgress() const { return mMoveInProgress; } + + /** Sets the move-in-progress flag. */ + void setMoveInProgress( bool b ) { mMoveInProgress = b; } + +signals: + /** Emitted when the status, name, or associated accounts of this + folder changed. */ + void changed(); + + /** Emitted when the folder is closed for real - ticket holders should + * discard any messages */ + void closed(); + + /** Emitted when the contents of a folder have been cleared + (new search in a search folder, for example) */ + void cleared(); + + /** Emitted after an expunge. If not quiet, changed() will be + emmitted first. */ + void expunged( KMFolder* ); + + /** Emitted when the icon paths are set. */ + void iconsChanged(); + + /** Emitted when the name of the folder changes. */ + void nameChanged(); + + /** Emitted when the shortcut associated with this folder changes. */ + void shortcutChanged( KMFolder * ); + + /** Emitted before a message is removed from the folder. */ + void msgRemoved(KMFolder*, Q_UINT32 sernum); + + /** Emitted after a message is removed from the folder. */ + void msgRemoved( int idx, QString msgIdMD5 ); + void msgRemoved(KMFolder*); + + /** Emitted when a message is added from the folder. */ + void msgAdded(int idx); + void msgAdded(KMFolder*, Q_UINT32 sernum); + + /** Emitted, when the status of a message is changed */ + void msgChanged(KMFolder*, Q_UINT32 sernum, int delta); + + /** Emitted when a field of the header of a specific message changed. */ + void msgHeaderChanged(KMFolder*, int); + + /** Emmited to display a message somewhere in a status line. */ + void statusMsg(const QString&); + + /** Emitted when number of unread messages has changed. */ + void numUnreadMsgsChanged( KMFolder* ); + + /** Emitted when a folder was removed */ + void removed(KMFolder*, bool); + + /** Emitted when the variables for the config of the view have changed */ + void viewConfigChanged(); + + /** Emitted when the folder's size changes. */ + void folderSizeChanged( KMFolder * ); + +public slots: + /** Incrementally update the index if possible else call writeIndex */ + int updateIndex(); + + /** Add the message to the folder after it has been retrieved from an IMAP + server */ + void reallyAddMsg(KMMessage* aMsg); + + /** Add a copy of the message to the folder after it has been retrieved + from an IMAP server */ + void reallyAddCopyOfMsg(KMMessage* aMsg); + +private slots: + /** The type of contents of this folder changed. Do what is needed. */ + void slotContentsTypeChanged( KMail::FolderContentsType type ); + /** Triggered by the storage when its size changed. */ + void slotFolderSizeChanged(); + +private: + FolderStorage* mStorage; + KMFolderDir* mChild; + bool mIsSystemFolder; + bool mHasIndex :1; + bool mExportsSernums :1; + bool mMoveInProgress :1; + + /** nationalized label or QString::null (then name() should be used) */ + QString mLabel; + QString mSystemLabel; + + /** Support for automatic expiry of old messages */ + bool mExpireMessages; // true if old messages are expired + int mUnreadExpireAge; // Given in unreadExpireUnits + int mReadExpireAge; // Given in readExpireUnits + ExpireUnits mUnreadExpireUnits; + ExpireUnits mReadExpireUnits; + ExpireAction mExpireAction; + QString mExpireToFolderId; + + /** Icon related variables */ + bool mUseCustomIcons; + QString mNormalIconPath; + QString mUnreadIconPath; + + /** Mailing list attributes */ + bool mMailingListEnabled; + MailingList mMailingList; + + AccountList* mAcctList; + + uint mIdentity; + + /** name of the field that is used for "From" in listbox */ + QString mWhoField, mUserWhoField; + + /** Should replies to messages in this folder be put in here? */ + bool mPutRepliesInSameFolder; + + /** Should new mail in this folder be ignored? */ + bool mIgnoreNewMail; + + /** shortcut associated with this folder or null, if none is configured. */ + KShortcut mShortcut; +}; + + +/** + RAII for KMFolder::open() / close(). + + Usage: const KMFolderOpener opener( folder ); +*/ +class KMFolderOpener { + KMFolder* mFolder; + const char* const mOwner; + int mOpenRc; + +public: + KMFolderOpener( KMFolder* folder, const char* const owner ) + : mFolder( folder ) + , mOwner( owner ) + { + assert( folder ); //change if that's not what you want + mOpenRc = folder->open( owner ); + } + + ~KMFolderOpener() + { + if ( !mOpenRc ) + mFolder->close( mOwner ); + } + + KMFolder* folder() const { return mFolder; } + + int openResult() const { return mOpenRc; } + +private: + //we forbid construction on the heap as good as we can + void* operator new( size_t size ); +}; + + +#endif /*kmfolder_h*/ |