git.maemo.org Git - qtmeetings/blob - src/BusinessLogic/Engine.cpp

   1 #include "Engine.h"
   2 #include "Room.h"
   3 #include "Meeting.h"
   4 #include "ConnectionSettings.h"
   5 #include "Configuration.h"
   6 #include "DisplaySettings.h"
   7 #include "CommunicationManager.h"
   8 #include "DeviceManager.h"
   9 #include "Clock.h"
  10 #include "ErrorMapper.h"
  11 #include "WeeklyViewWidget.h"
  12
  13 #include <QApplication>
  14 #include <QTimer>
  15 #include <QList>
  16 #include <QtDebug>
  17
  18 QTime Engine::endOfTheDay = QTime( 23, 59, 0, 0); // end of the day is 11:59pm
  19 const int IDLE_TIME_MULTIPLIER = 60000; // Multiplies milliseconds to minutes
  20
  21 Engine::Engine() :
  22         iClock( 0), iConfiguration(Configuration::instance() ), iCommunication( 0)
  23 {
  24         qDebug() << "Engine::Engine()";
  25         // if reading of configuration fails, signal that initialization failed
  26         if (iConfiguration == 0)
  27         {
  28                 QTimer::singleShot( 0, this, SLOT( closeApplication() ));
  29                 return;
  30         }
  31
  32         //initialize window manager
  33         iWindowManager = new WindowManager( iConfiguration );
  34         connect(iWindowManager, SIGNAL( roomStatusInfoNeeded( Room * ) ), this, SLOT( roomStatusInfoNeeded( Room * ) ));
  35         connect(iWindowManager, SIGNAL( observedEventDetected() ), this, SLOT( observedEventDetected() ));
  36         connect(iWindowManager, SIGNAL( meetingActivated( Meeting * ) ), this, SLOT( fetchMeetingDetails( Meeting * ) ));
  37         connect(iWindowManager, SIGNAL( currentRoomChanged( Room * ) ), this, SLOT( currentRoomChanged( Room * ) ));
  38         connect(iWindowManager, SIGNAL( shownWeekChanged( QDate ) ), this, SLOT( shownWeekChanged( QDate ) ));
  39         connect(iWindowManager, SIGNAL( passwordEntered( PasswordDialog::PasswordStatus ) ), this, SLOT( passwordEntered( PasswordDialog::PasswordStatus ) ));
  40
  41         // initialize communication
  42         iCommunication = new CommunicationManager( *(iConfiguration->connectionSettings()) );
  43         connect(iCommunication, SIGNAL( error( int, CommunicationManager::CommunicationType ) ), this, SLOT( errorHandler( int ) ));
  44         connect(iCommunication, SIGNAL( meetingsFetched( const QList<Meeting*>& ) ), this, SLOT( meetingsFetched( const QList<Meeting*>& ) ));
  45         connect(iCommunication, SIGNAL( meetingDetailsFetched( Meeting& ) ), this, SLOT( meetingDetailsFetched( Meeting& ) ));
  46
  47         //initialize idle time counter
  48         iIdleTimeCounter = new QTimer();
  49         iIdleTimeCounter->setSingleShot( true);
  50         iIdleTimeCounter->setInterval(IDLE_TIME_MULTIPLIER
  51                         * iConfiguration->displaySettings()->screensaver() );
  52         iIdleTimeCounter->start();
  53         connect(iIdleTimeCounter, SIGNAL( timeout() ), iWindowManager, SLOT( showRoomStatus() ));
  54
  55         // create application clock
  56         iClock = new Clock;
  57         connect(iClock, SIGNAL( tick( QDateTime ) ), this, SLOT( checkStatusOfAllRooms() ));
  58         connect(iClock, SIGNAL( tick( QDateTime ) ), iWindowManager, SLOT( distributeDateTimeInfo( QDateTime ) ));
  59
  60         iAutoRefresh = new QTimer;
  61         iAutoRefresh->setInterval(iConfiguration->connectionSettings()->refreshInterval() * 1000);
  62         iAutoRefresh->start();
  63         connect(iAutoRefresh, SIGNAL( timeout() ), iAutoRefresh, SLOT( start() ));
  64         connect(iAutoRefresh, SIGNAL( timeout() ), this, SLOT( fetchMeetings() ));
  65
  66         // create device manager
  67         iDevice = new DeviceManager( iConfiguration->startupSettings() );
  68         connect(iDevice, SIGNAL( error( int, const QString& ) ), this, SLOT( errorHandler( int, const QString& ) ));
  69         connect(iDevice, SIGNAL( changeModeOrdered( DeviceManager::OperationMode ) ), this, SLOT( changeModeOrdered( DeviceManager::OperationMode ) ));
  70         iDevice->initDeviceManager();
  71
  72         if (iDevice->currentOperationMode() == DeviceManager::KioskMode)
  73                 iWindowManager->fullScreen();
  74
  75         QTimer::singleShot( 0, this, SLOT( fetchMeetings() ));
  76
  77         // TODO: continue implementation
  78 }
  79
  80 Engine::~Engine()
  81 {
  82         qDebug() << "Engine::~Engine()";
  83         while ( !iMeetings.isEmpty() )
  84                 delete iMeetings.takeFirst();
  85         iIdleTimeCounter->stop();
  86         delete iIdleTimeCounter;
  87         iIdleTimeCounter = 0;
  88         delete iWindowManager;
  89         iWindowManager = 0;
  90         delete iClock;
  91         iClock = 0;
  92         delete iDevice;
  93         iDevice = 0;
  94 }
  95
  96 void Engine::closeApplication()
  97 {
  98         qDebug() << "Engine::closeApplication()";
  99         // closes application after 1 second
 100         QTimer::singleShot( 1000, QApplication::instance(), SLOT( quit() ));
 101 }
 102
 103 void Engine::observedEventDetected()
 104 {
 105         qDebug() << "Engine::observedEventDetected()";
 106         if ( !iIdleTimeCounter->isActive() )
 107         {
 108                 iWindowManager->weeklyView()->showCurrentWeek();
 109         }
 110         iWindowManager->showWeeklyView();
 111         // prepare to restart idle counter
 112         if (iIdleTimeCounter->isActive() )
 113         {
 114                 iIdleTimeCounter->stop();
 115         }
 116         // (re)start idle counter
 117         iIdleTimeCounter->start();
 118 }
 119
 120 Room* Engine::defaultRoom()
 121 {
 122         qDebug() << "Engine::defaultRoom()";
 123         return iConfiguration->defaultRoom();
 124 }
 125
 126 void Engine::checkStatusOfAllRooms()
 127 {
 128         qDebug() << "Engine::checkStatusOfAllRooms()";
 129         // iterate trough on the rooms
 130         for (int i = 0; i < iConfiguration->rooms().count(); i++)
 131         {
 132                 // and check the status
 133                 roomStatusInfoNeeded(iConfiguration->rooms().at(i) );
 134         }
 135 }
 136
 137 int Engine::indexOfMeetingAt(Room *aRoom, QDateTime aAt)
 138 {
 139         qDebug() << "Engine::indexOfMeetingAt( Room *, QDateTime )";
 140         for (int i = 0; i < iMeetings.count(); i++)
 141         {
 142                 // exchange server ensures that there is only one meeting in a room at a specified time
 143                 if (aRoom->equals(iMeetings.at( i )->room() ) && iMeetings.at( i )->startsAt() <= aAt && iMeetings.at( i )->endsAt() >= aAt)
 144                 {
 145                         return i;
 146                 }
 147         }
 148         return -1;
 149 }
 150
 151 int Engine::indexOfMeetingAfter(Room *aRoom, QDateTime aAfter)
 152 {
 153         qDebug() << "Engine::indexOfMeetingAfter( Room *, QDateTime )";
 154         // seeks for the next meeting on the SAME DAY
 155         int min = -1;
 156         for (int i = 0; i < iMeetings.count(); i++)
 157         {
 158                 // if the meeting is in the same room, on the same day but after the specified time
 159                 if (aRoom->equals(iMeetings.at( i )->room() ) && iMeetings.at( i )->startsAt().date() == aAfter.date() && iMeetings.at( i )->startsAt() > aAfter)
 160                 {
 161                         // if there was not any meeting find yet or the previously found is a later one then the (i)th
 162                         if (min == -1 || iMeetings.at( min )->startsAt() > iMeetings.at( i )->startsAt() )
 163                         {
 164                                 min = i;
 165                         }
 166                 }
 167         }
 168         return min;
 169 }
 170
 171 void Engine::roomStatusInfoNeeded(Room *aRoom)
 172 {
 173         qDebug() << "Engine::roomStatusInfoNeeded( Room * )";
 174         if (aRoom == 0)
 175         {
 176                 return;
 177         }
 178
 179         int indexOfCurrentMeeting = indexOfMeetingAt(aRoom, iClock->datetime() );
 180         int indexOfNextMeeting = indexOfMeetingAfter(aRoom, iClock->datetime() );
 181
 182         // if there is no meeting, then status is Free; otherwise Busy
 183         Room::Status
 184                         status =
 185                                         (indexOfCurrentMeeting == -1 ) ? Room::FreeStatus : Room::BusyStatus;
 186         // if room is Busy, then check end time, otherwise...
 187         QTime until = (status == Room::BusyStatus ) ? iMeetings.at( indexOfCurrentMeeting )->endsAt().time() :
 188         // ...if there is meeting following on the same day then check end time, otherwise end is the of the working day
 189         ((indexOfNextMeeting != -1 ) ? iMeetings.at( indexOfNextMeeting )->startsAt().time() : Engine::endOfTheDay );
 190
 191         //currently works only for deafult room
 192         if (aRoom->equals( *(defaultRoom() )) )
 193                 iWindowManager->roomStatusChanged(aRoom, status, until);
 194 }
 195
 196 void Engine::fetchMeetings()
 197 {
 198         Room *room = defaultRoom();
 199         qDebug() << "Engine::fetchMeetings for " << room->name();
 200         fetchMeetings(iClock->datetime(), iClock->datetime().addDays( 7), room);
 201 }
 202
 203 void Engine::fetchMeetingDetails(Meeting *aMeeting)
 204 {
 205         qDebug() << "Engine::fetchMeetingDetails( Meeting* )";
 206         iWindowManager->showProgressBar(tr("Please Wait"), true);
 207         iWindowManager->updateProgressBar(tr("Fetching Meeting Details...") );
 208         connect(iWindowManager,
 209         SIGNAL( progressBarCancelled() ), this,
 210         SLOT( fetchMeetingDetailsCancelled() ));
 211         iCommunication->fetchMeetingDetails( *aMeeting);
 212 }
 213
 214 bool Engine::isMeetingInList(const QList<Meeting*> &aList, const Meeting *aMeeting)
 215 {
 216         qDebug()
 217                         << "Engine::isMeetingInList( const QList<Meeting*> &, const Meeting * )";
 218         for (int i = 0; i < aList.count(); i++)
 219         {
 220                 if (aMeeting->equals( *(aList.at(i))) )
 221                 {
 222                         return true;
 223                 }
 224         }
 225         return false;
 226 }
 227
 228 void Engine::meetingsFetched(const QList<Meeting*> &aMeetings)
 229 {
 230         qDebug() << "Engine::meetingsFetched( const QList<Meeting*> & )";
 231         // check if there is any new meeting in the list came from the server -> added
 232         for (int i = 0; i < aMeetings.count(); i++)
 233         {
 234                 // if the (i)th meeting is not in the local meeting list
 235                 if ( !isMeetingInList(iMeetings, aMeetings.at(i) ) )
 236                 {
 237                         // add to the local database =)
 238                         Meeting* m = new Meeting( *(aMeetings.at( i )) );
 239                         iMeetings.append(m);
 240                         // and signal the changes
 241                         iWindowManager->insertMeeting(m);
 242                 }
 243         }
 244
 245         // check if there is any meeting NOT in the list came from the server -> deleted
 246         for (int i = 0; i < iMeetings.count(); i++)
 247         {
 248                 // if the (i)th meeting is in the local but NOT in the server's meeting list
 249                 if ( !isMeetingInList(aMeetings, iMeetings.at(i) ) )
 250                 {
 251                         Meeting* m = iMeetings.takeAt(i);
 252                         // signal the changes
 253                         iWindowManager->deleteMeeting(m);
 254                         // delete the meeting from the local list
 255                         delete m;
 256                 }
 257         }
 258
 259         // refresh room status info
 260         roomStatusInfoNeeded(defaultRoom() );
 261 }
 262
 263 void Engine::meetingDetailsFetched(Meeting &aDetailedMeeting)
 264 {
 265         qDebug() << "Engine::meetingDetailsFetched( Meeting & )";
 266         iWindowManager->closeProgressBar();
 267         iWindowManager->showMeetingInfo( &aDetailedMeeting);
 268 }
 269
 270 void Engine::errorHandler(int aCode, const QString &aAddInfo)
 271 {
 272         qDebug() << "Engine::ErrorHandler, aCode: " << aCode;
 273         // inform UI about the problem
 274         if (aCode >= 100 && aCode <= 150)
 275                 qDebug() << "CommunicationManager signaled an error:" << aCode;
 276         iWindowManager->closeProgressBar();
 277         iWindowManager->error(ErrorMapper::codeToString(aCode, aAddInfo) );
 278 }
 279
 280 void Engine::currentRoomChanged(Room *aCurrentRoom)
 281 {
 282         qDebug() << "Engine::currentRoomChanged to " << aCurrentRoom->name();
 283         QDateTime from(iWindowManager->weeklyView()->beginnigOfShownWeek() );
 284         QDateTime to(from.addDays( 8) );
 285         fetchMeetings(from, to, aCurrentRoom);
 286 }
 287
 288 void Engine::fetchMeetings(const QDateTime &aFrom, const QDateTime &aUntil, const Room *aIn)
 289 {
 290         qDebug()
 291                         << "Engine::fetchMeetings( const QDateTime &, const QDateTime &, const Room * )";
 292         iCommunication->fetchMeetings(aFrom, aUntil, *aIn);
 293 }
 294
 295 void Engine::shownWeekChanged(QDate aFrom)
 296 {
 297         qDebug() << "Engine::shownWeekChanged( QDate )";
 298         QDateTime from(aFrom);
 299         QDateTime to(aFrom.addDays( 7), QTime( 23, 59) );
 300         qDebug() << "Engine::shownWeekChanged " << aFrom.toString("d.m. h:mm")
 301                         << " to " << to.toString("d.m. h:mm");
 302         fetchMeetings(from, to, iWindowManager->weeklyView()->currentRoom() );
 303 }
 304
 305 void Engine::changeModeOrdered(DeviceManager::OperationMode aMode)
 306 {
 307         qDebug() << "Engine::changeModeOrdered( DeviceManager::OperationMode )";
 308         QString message = tr( "You are about to change operation mode to %1." )
 309         .arg(iDevice->operationModeToString(aMode) );
 310
 311         iWindowManager->showPasswordDialog(iConfiguration->adminPassword(), message);
 312 }
 313
 314 void Engine::passwordEntered(PasswordDialog::PasswordStatus aPasswordStatus)
 315 {
 316         qDebug() << "Engine::passwordEntered( PasswordDialog::PasswordStatus )";
 317         iWindowManager->closePasswordDialog();
 318
 319         switch (aPasswordStatus)
 320         {
 321                 case PasswordDialog::Correct:
 322                 {
 323                         iWindowManager->showProgressBar("Changing current operation mode.", true);
 324                         connect(iWindowManager, SIGNAL( progressBarCancelled() ), this, SLOT( progressBarCancelled() ));
 325                         connect(iDevice, SIGNAL( changingMode( const QString & ) ), iWindowManager, SLOT( updateProgressBar( const QString & ) ));
 326                         connect(iDevice, SIGNAL( changingModeFailed() ), this, SLOT( progressBarCancelled() ));
 327                         iDevice->changeMode( true);
 328                         break;
 329                 }
 330                 case PasswordDialog::Incorrect:
 331                 {
 332                         iWindowManager->error(tr("Incorrect password.") );
 333                         iDevice->changeMode( false);
 334                         break;
 335                 }
 336                 default: //case PasswordDialog::Canceled
 337                 {
 338                         iDevice->changeMode( false);
 339                 }
 340         }
 341 }
 342
 343 void Engine::progressBarCancelled()
 344 {
 345         qDebug() << "Engine::progressBarCancelled()";
 346         //TODO: cancel the on-going event
 347         iWindowManager->closeProgressBar();
 348         iDevice->changeMode( false);
 349 }
 350
 351 void Engine::fetchMeetingDetailsCancelled()
 352 {
 353         iCommunication->cancelFetchMeetingDetails();
 354         iWindowManager->closeProgressBar();
 355 }