kalarmapp.h 12.2 KB
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/*
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 *  kalarmapp.h  -  the KAlarm application object
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 *  Program:  kalarm
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 *  Copyright © 2001-2016 by David Jarvie <djarvie@kde.org>
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 *
 *  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.
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 *
 *  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.
 *
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 *  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.,
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 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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 */

#ifndef KALARMAPP_H
#define KALARMAPP_H

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/** @file kalarmapp.h - the KAlarm application object */

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#include "eventid.h"
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#include "kamail.h"
#include "preferences.h"

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#include <kalarmcal/kaevent.h>
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#include <QApplication>
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#include <QPointer>
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#include <QQueue>
#include <QList>
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class KDateTime;
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namespace KCal { class Event; }
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namespace Akonadi { class Collection; }
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class DBusHandler;
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class MainWindow;
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class TrayWindow;
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class ShellProcess;
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using namespace KAlarmCal;
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class KAlarmApp : public QApplication
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{
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        Q_OBJECT
    public:
        ~KAlarmApp();
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        static KAlarmApp*  create(int& argc, char** argv);
        static KAlarmApp*  instance()                      { return mInstance; }
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        bool               checkCalendar()                 { return initCheck(); }
        bool               wantShowInSystemTray() const;
        bool               alarmsEnabled() const           { return mAlarmsEnabled; }
        bool               korganizerEnabled() const       { return mKOrganizerEnabled; }
        bool               restoreSession();
        bool               quitIf()                        { return quitIf(0); }
        void               doQuit(QWidget* parent);
        static void        displayFatalError(const QString& message);
        void               addWindow(TrayWindow* w)        { mTrayWindow = w; }
        void               removeWindow(TrayWindow*);
        TrayWindow*        trayWindow() const              { return mTrayWindow; }
        MainWindow*        trayMainWindow() const;
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        bool               displayTrayIcon(bool show, MainWindow* = Q_NULLPTR);
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        bool               trayIconDisplayed() const       { return mTrayWindow; }
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        bool               editNewAlarm(MainWindow* = Q_NULLPTR);
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        void*              execAlarm(KAEvent&, const KAAlarm&, bool reschedule, bool allowDefer = true, bool noPreAction = false);
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        ShellProcess*      execCommandAlarm(const KAEvent&, const KAAlarm&, const QObject* receiver = Q_NULLPTR, const char* slot = Q_NULLPTR);
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        void               alarmCompleted(const KAEvent&);
        void               rescheduleAlarm(KAEvent& e, const KAAlarm& a)   { rescheduleAlarm(e, a, true); }
        void               purgeAll()             { purge(0); }
        void               commandMessage(ShellProcess*, QWidget* parent);
        void               notifyAudioPlaying(bool playing);
        void               setSpreadWindowsState(bool spread);
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        bool               windowFocusBroken() const;
        bool               needWindowFocusFix() const;
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        // Methods called indirectly by the DCOP interface
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        bool               scheduleEvent(KAEvent::SubAction, const QString& text, const KDateTime&,
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                                         int lateCancel, KAEvent::Flags flags, const QColor& bg, const QColor& fg,
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                                         const QFont&, const QString& audioFile, float audioVolume,
                                         int reminderMinutes, const KARecurrence& recurrence,
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                                         KCalCore::Duration repeatInterval, int repeatCount,
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                                         uint mailFromID = 0, const KCalCore::Person::List& mailAddresses = KCalCore::Person::List(),
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                                         const QString& mailSubject = QString(),
                                         const QStringList& mailAttachments = QStringList());
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        bool               dbusTriggerEvent(const EventId& eventID)   { return dbusHandleEvent(eventID, EVENT_TRIGGER); }
        bool               dbusDeleteEvent(const EventId& eventID)    { return dbusHandleEvent(eventID, EVENT_CANCEL); }
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        QString            dbusList();
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    public Q_SLOTS:
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        void               activate(const QStringList& args, const QString& workingDirectory);
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        void               processQueue();
        void               setAlarmsEnabled(bool);
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        void               purgeNewArchivedDefault(const Akonadi::Collection&);
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        void               atLoginEventAdded(const KAEvent&);
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        void               notifyAudioStopped()  { notifyAudioPlaying(false); }
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        void               stopAudio();
        void               spreadWindows(bool);
        void               emailSent(KAMail::JobData&, const QStringList& errmsgs, bool copyerr = false);

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    Q_SIGNALS:
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        void               trayIconToggled();
        void               alarmEnabledToggled(bool);
        void               audioPlaying(bool);
        void               spreadWindowsToggled(bool);
        void               execAlarmSuccess();

    private:
        typedef Preferences::Feb29Type Feb29Type;   // allow it to be used in SIGNAL mechanism

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    private Q_SLOTS:
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        void               quitFatal();
        void               checkNextDueAlarm();
        void               checkKtimezoned();
        void               slotShowInSystemTrayChanged();
        void               changeStartOfDay();
        void               slotWorkTimeChanged(const QTime& start, const QTime& end, const QBitArray& days);
        void               slotHolidaysChanged(const KHolidays::HolidayRegion&);
        void               slotFeb29TypeChanged(Feb29Type);
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        void               checkWritableCalendar();
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        void               slotMessageFontChanged(const QFont&);
        void               setArchivePurgeDays();
        void               slotPurge()                     { purge(mArchivedPurgeDays); }
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        void               purgeAfterDelay();
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        void               slotCommandExited(ShellProcess*);

    private:
        enum EventFunc
        {
            EVENT_HANDLE,    // if the alarm is due, execute it and then reschedule it
            EVENT_TRIGGER,   // execute the alarm regardless, and then reschedule it if it already due
            EVENT_CANCEL     // delete the alarm
        };
        struct ProcData
        {
            ProcData(ShellProcess*, KAEvent*, KAAlarm*, int flags = 0);
            ~ProcData();
            enum { PRE_ACTION = 0x01, POST_ACTION = 0x02, RESCHEDULE = 0x04, ALLOW_DEFER = 0x08,
                   TEMP_FILE = 0x10, EXEC_IN_XTERM = 0x20, DISP_OUTPUT = 0x40 };
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            bool  preAction() const   { return flags & PRE_ACTION; }
            bool  postAction() const  { return flags & POST_ACTION; }
            bool  reschedule() const  { return flags & RESCHEDULE; }
            bool  allowDefer() const  { return flags & ALLOW_DEFER; }
            bool  tempFile() const    { return flags & TEMP_FILE; }
            bool  execInXterm() const { return flags & EXEC_IN_XTERM; }
            bool  dispOutput() const  { return flags & DISP_OUTPUT; }
            ShellProcess*     process;
            KAEvent*          event;
            KAAlarm*          alarm;
            QPointer<QWidget> messageBoxParent;
            QStringList       tempFiles;
            int               flags;
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        };
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        struct ActionQEntry
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        {
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            ActionQEntry(EventFunc f, const EventId& id) : function(f), eventId(id) { }
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            ActionQEntry(const KAEvent& e, EventFunc f = EVENT_HANDLE) : function(f), event(e) { }
            ActionQEntry() { }
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            EventFunc  function;
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            EventId    eventId;
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            KAEvent    event;
        };

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        KAlarmApp(int& argc, char** argv);
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        bool               initialise();
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        bool               initCheck(bool calendarOnly = false, bool waitForCollection = false, Akonadi::Collection::Id = -1);
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        bool               quitIf(int exitCode, bool force = false);
        bool               checkSystemTray();
        void               startProcessQueue();
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        void               queueAlarmId(const KAEvent&);
        bool               dbusHandleEvent(const EventId&, EventFunc);
        bool               handleEvent(const EventId&, EventFunc, bool checkDuplicates = false);
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        int                rescheduleAlarm(KAEvent&, const KAAlarm&, bool updateCalAndDisplay,
                                           const KDateTime& nextDt = KDateTime());
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        bool               cancelAlarm(KAEvent&, KAAlarm::Type, bool updateCalAndDisplay);
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        bool               cancelReminderAndDeferral(KAEvent&);
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        ShellProcess*      doShellCommand(const QString& command, const KAEvent&, const KAAlarm*,
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                                          int flags = 0, const QObject* receiver = Q_NULLPTR, const char* slot = Q_NULLPTR);
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        QString            composeXTermCommand(const QString& command, const KAEvent&, const KAAlarm*,
                                               int flags, QString& tempScriptFile) const;
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        QString            createTempScriptFile(const QString& command, bool insertShell, const KAEvent&, const KAAlarm&) const;
        void               commandErrorMsg(const ShellProcess*, const KAEvent&, const KAAlarm*, int flags = 0);
        void               purge(int daysToKeep);
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        QStringList        scheduledAlarmList();
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        static KAlarmApp*  mInstance;            // the one and only KAlarmApp instance
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        static int         mActiveCount;         // number of active instances without main windows
        static int         mFatalError;          // a fatal error has occurred - just wait to exit
        static QString     mFatalMessage;        // fatal error message to output
        bool               mInitialised;         // initialisation complete: ready to process execution queue
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        bool               mRedisplayAlarms;     // need to redisplay alarms when collection tree fetched
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        bool               mQuitting;            // a forced quit is in progress
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        bool               mReadOnly;            // only read-only access to calendars is needed
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        bool               mLoginAlarmsDone;     // alarms repeated at login have been processed
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        QString            mActivateArg0;        // activate()'s first arg the first time it was called
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        DBusHandler*       mDBusHandler;         // the parent of the main DCOP receiver object
        TrayWindow*        mTrayWindow;          // active system tray icon
        QTimer*            mAlarmTimer;          // activates KAlarm when next alarm is due
        QColor             mPrefsArchivedColour; // archived alarms text colour
        int                mArchivedPurgeDays;   // how long to keep archived alarms, 0 = don't keep, -1 = keep indefinitely
        int                mPurgeDaysQueued;     // >= 0 to purge the archive calendar from KAlarmApp::processLoop()
        QList<ProcData*>   mCommandProcesses;    // currently active command alarm processes
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        QQueue<ActionQEntry> mActionQueue;       // queued commands and actions
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        int                mPendingQuitCode;     // exit code for a pending quit
        bool               mPendingQuit;         // quit once the DCOP command and shell command queues have been processed
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        bool               mCancelRtcWake;       // cancel RTC wake on quitting
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        bool               mProcessingQueue;     // a mActionQueue entry is currently being processed
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        bool               mNoSystemTray;        // no system tray exists
        bool               mOldShowInSystemTray; // showing in system tray was selected
        bool               mAlarmsEnabled;       // alarms are enabled
        bool               mKOrganizerEnabled;   // KOrganizer options are enabled (korganizer exists)
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        bool               mWindowFocusBroken;   // keyboard focus transfer between windows doesn't work
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};

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inline KAlarmApp* theApp()  { return KAlarmApp::instance(); }
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#endif // KALARMAPP_H
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