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Diffstat (limited to 'kresources/caldav/resource.h')
| -rw-r--r-- | kresources/caldav/resource.h | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/kresources/caldav/resource.h b/kresources/caldav/resource.h new file mode 100644 index 00000000..6b28c350 --- /dev/null +++ b/kresources/caldav/resource.h @@ -0,0 +1,220 @@ +/*========================================================================= +| KCalDAV +|-------------------------------------------------------------------------- +| (c) 2010 Timothy Pearson +| (c) 2009 Kumaran Santhanam (initial KDE4 version) +| +| This project is released under the GNU General Public License. +| Please see the file COPYING for more details. +|-------------------------------------------------------------------------- +| Main interface to the KResource system. + ========================================================================*/ + +/*========================================================================= +| INCLUDES + ========================================================================*/ + +#ifndef KCAL_RESOURCECALDAV_H +#define KCAL_RESOURCECALDAV_H + +#include "preferences.h" +#include <qthread.h> +#include <qptrqueue.h> + +#include <libkcal/resourcecached.h> + +#include <kabc/locknull.h> + +#include <kdepimmacros.h> +#include <kconfig.h> + +namespace KCal { + +class CalDavReader; +class CalDavWriter; + +/*========================================================================= +| CLASS + ========================================================================*/ + +/** + * This class provides a resource for accessing calendars via CalDAV protocol. + */ +class KDE_EXPORT ResourceCalDav : public ResourceCached +{ + Q_OBJECT + +public: + + explicit ResourceCalDav( const KConfig *config ); + virtual ~ResourceCalDav(); + + void readConfig( const KConfig *config ); + void writeConfig( KConfig *config ); + + /** + * @return This resource preferences. + */ + CalDavPrefs* prefs() { + return mPrefs; + } + + /** + * @return This resource preferences. + */ + const CalDavPrefs* prefs() const { + return mPrefs; + } + + virtual void setReadOnly(bool v); + +protected slots: + + void loadFinished(); + + void writingFinished(); + +protected: + + struct LoadingTask { + QString url; + }; + + struct WritingTask { + QString url; + QString added; + QString changed; + QString deleted; + }; + + +// virtual bool doLoad( bool syncCache ); +// virtual bool doSave( bool syncCache ); + + virtual bool doLoad(); + virtual bool doSave(); + + virtual bool doSave( bool syncCache, Incidence *incidence ); + + virtual KABC::Lock* lock(); + + /** + * Creates prefs and configures them. + * @return a newly created preferences object. It should be removed by the caller. + */ + CalDavPrefs* createPrefs() const; + + /** + * Initializes internal state. + * Particulary, sets save and reload policies to default values, + * creates writing and reading jobs and preferences objects. + */ + void init(); + + /** + * Initiates calendar loading process. + * @param url URL to load calendar data from. + */ + void startLoading(const QString& url); + + /** + * Checks if the data is correct and can be parsed. + * @param data ical string to check. + * @return true if the data is correct, false otherwise. + */ + bool checkData(const QString& data); + + /** + * Parses the data and adds events to the calendar. + * @param data calendar data. + * @return true on success, false on fail. + */ + bool parseData(const QString& data); + + /** + * Initiates calendar writing process. + * @param url URL to save calendar data to. + */ + void startWriting(const QString& url); + + /** + * Returns a list of incidences as a valid iCalendar string. + * @param inc list of incidences. + * @return a string in iCalendar format which describes the given incidences. + */ + QString getICalString(const Incidence::List& inc); + + /** + * Changes read-only status of incidences from a given list. + * @param inc list of incidences. + * @param readOnly read-only status that all the incidences should have after the method finishes. + */ + static void setIncidencesReadOnly(Incidence::List& inc, bool readOnly); + + /** + * Ensures incidences' read-only states are the same as the calendar's read-only state. + */ + void ensureReadOnlyFlagHonored(); + + /** + * If the loading queue is empty or the loader is not ready, does nothing. + * Otherwise, pops a head element and starts a loading process for it. + */ + void loadingQueuePop(); + + /** + * Pushes the given loading task to the loading queue. + * Then calls loadingQueuePop. + */ + void loadingQueuePush(const LoadingTask *task); + + /** + * If the writing queue is empty or the writer is not ready, does nothing. + * Otherwise, pops a head element and starts a writing process for it. + */ + void writingQueuePop(); + + /** + * Pushes the given writing task to the writing queue. + * Then calls writingQueuePop. + */ + void writingQueuePush(const WritingTask *task); + +private: + + // constants: ============================================================= + + /// Termination waiting time in milliseconds. Used to terminate job threads. + static const unsigned long TERMINATION_WAITING_TIME; + + /** + * Resource caches only events which are from the interval [-CACHE_DAYS, CACHE_DAYS]. + */ + static const int CACHE_DAYS; + + static const int DEFAULT_RELOAD_INTERVAL; + static const int DEFAULT_SAVE_INTERVAL; + static const int DEFAULT_RELOAD_POLICY; + static const int DEFAULT_SAVE_POLICY; + + // members: =============================================================== + + KABC::LockNull mLock; + CalDavPrefs* mPrefs; + CalDavReader* mLoader; + CalDavWriter* mWriter; + + bool mLoadingQueueReady; + QPtrQueue<LoadingTask> mLoadingQueue; + + bool mWritingQueueReady; + QPtrQueue<WritingTask> mWritingQueue; + +}; + + + +} // namespace KCal + +#endif // KCAL_RESOURCECALDAV_H + |