vcs.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 "UIManager.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 // Macro to help deleting objects. This could be global.
  22 #define QT_DELETE(X) \
  23         if ( X != 0 ) \
  24         { \
  25                 delete X; \
  26                 X = 0; \
  27         }
  28
  29
  30 Engine::Engine() :
  31                 iClock( 0 ), iConfiguration( 0 ), iCommunication( 0 ),
  32                 iWindowManager( 0 ), iUIManager( 0 )
  33 {
  34         qDebug() << "Engine::Engine()";
  35         iCommunicationFailed = false;
  36         iCurrentWeekFetched = false;
  37
  38         initConfiguration();
  39         initDevice();
  40         initCommunication();
  41         initUserInterface();
  42
  43         //initialize idle time counter
  44         iIdleTimeCounter = new QTimer();
  45         iIdleTimeCounter->setSingleShot( true);
  46         iIdleTimeCounter->setInterval(IDLE_TIME_MULTIPLIER * iConfiguration->displaySettings()->screensaver() );
  47         iIdleTimeCounter->start();
  48
  49         // create application clock
  50         iClock = new Clock;
  51         connect( iClock, SIGNAL( tick( QDateTime ) ), this, SLOT( checkStatusOfAllRooms() ) );
  52         // connect( iClock, SIGNAL( tick( QDateTime ) ), iWindowManager, SLOT( distributeDateTimeInfo( QDateTime ) ) );
  53
  54         // Create auto refresh timer
  55         iAutoRefresh = new QTimer;
  56         iAutoRefresh->setInterval(iConfiguration->connectionSettings()->refreshInterval() * 1000);
  57         iAutoRefresh->start();
  58         connect( iAutoRefresh, SIGNAL( timeout() ), iAutoRefresh, SLOT( start() ) );
  59         // connect( iAutoRefresh, SIGNAL( timeout() ), this, SLOT( fetchMeetings() ) );
  60
  61         if( iDevice->currentOperationMode() == DeviceManager::KioskMode )
  62         {
  63                 iWindowManager->setFullscreen();
  64         }
  65
  66         connectSignals();
  67
  68         // QTimer::singleShot( 0, this, SLOT( fetchMeetings() ) );
  69
  70         // TODO: continue implementation
  71 }
  72
  73 Engine::~Engine()
  74 {
  75         qDebug() << "Engine::~Engine()";
  76         while ( !iMeetings.isEmpty() )
  77                 delete iMeetings.takeFirst();
  78
  79         if ( iIdleTimeCounter != 0 )
  80         {
  81                 iIdleTimeCounter->stop();
  82                 delete iIdleTimeCounter;
  83                 iIdleTimeCounter = 0;
  84         }
  85         QT_DELETE( iClock );
  86         QT_DELETE( iDevice );
  87
  88         QT_DELETE( iUIManager );
  89         QT_DELETE( iWindowManager );
  90 }
  91
  92 void Engine::closeApplication()
  93 {
  94         qDebug() << "Engine::closeApplication()";
  95         // closes application after 1 second
  96         QTimer::singleShot( 1000, QApplication::instance(), SLOT( quit() ));
  97 }
  98
  99 Room* Engine::defaultRoom()
 100 {
 101         qDebug() << "Engine::defaultRoom()";
 102         return iConfiguration->defaultRoom();
 103 }
 104
 105 void Engine::checkStatusOfAllRooms()
 106 {
 107 //      qDebug() << "Engine::checkStatusOfAllRooms()";
 108         // iterate trough on the rooms
 109         for (int i = 0; i < iConfiguration->rooms().count(); i++)
 110         {
 111                 // and check the status
 112                 roomStatusInfoNeeded(iConfiguration->rooms().at(i) );
 113         }
 114 }
 115
 116 int Engine::indexOfMeetingAt(Room *aRoom, QDateTime aAt)
 117 {
 118 //      qDebug() << "Engine::indexOfMeetingAt( Room *, QDateTime )";
 119         for ( int i = 0; i < iMeetings.count(); i++ )
 120         {
 121                 // exchange server ensures that there is only one meeting in a room at a specified time
 122                 if (aRoom->equals(iMeetings.at( i )->room() ) && iMeetings.at( i )->startsAt() <= aAt && iMeetings.at( i )->endsAt() >= aAt)
 123                 {
 124                         return i;
 125                 }
 126         }
 127         return -1;
 128 }
 129
 130 int Engine::indexOfMeetingAfter(Room *aRoom, QDateTime aAfter)
 131 {
 132 //      qDebug() << "Engine::indexOfMeetingAfter( Room *, QDateTime )";
 133         // seeks for the next meeting on the SAME DAY
 134         int min = -1;
 135         for (int i = 0; i < iMeetings.count(); i++)
 136         {
 137                 // if the meeting is in the same room, on the same day but after the specified time
 138                 if (aRoom->equals(iMeetings.at( i )->room() ) && iMeetings.at( i )->startsAt().date() == aAfter.date() && iMeetings.at( i )->startsAt() > aAfter)
 139                 {
 140                         // if there was not any meeting find yet or the previously found is a later one then the (i)th
 141                         if (min == -1 || iMeetings.at( min )->startsAt() > iMeetings.at( i )->startsAt() )
 142                         {
 143                                 min = i;
 144                         }
 145                 }
 146         }
 147         return min;
 148 }
 149
 150 void Engine::roomStatusInfoNeeded(Room *aRoom)
 151 {
 152 //      qDebug() << "Engine::roomStatusInfoNeeded( Room * )";
 153         if ( aRoom == 0 )
 154         {
 155                 return;
 156         }
 157
 158         int indexOfCurrentMeeting = indexOfMeetingAt(aRoom, iClock->datetime() );
 159         int indexOfNextMeeting = indexOfMeetingAfter(aRoom, iClock->datetime() );
 160
 161         // if there is no meeting, then status is Free; otherwise Busy
 162         Room::Status status = (indexOfCurrentMeeting == -1 ) ? Room::FreeStatus : Room::BusyStatus;
 163         // if room is Busy, then check end time, otherwise...
 164         QTime until = (status == Room::BusyStatus ) ? iMeetings.at( indexOfCurrentMeeting )->endsAt().time() :
 165         // ...if there is meeting following on the same day then check end time, otherwise end is the of the working day
 166         ( ( indexOfNextMeeting != -1 ) ? iMeetings.at( indexOfNextMeeting )->startsAt().time() : Engine::endOfTheDay );
 167
 168         //currently works only for deafult room
 169 //      if( aRoom->equals( *(defaultRoom() ) ) )
 170 //              iWindowManager->roomStatusChanged( aRoom, status, until );
 171 }
 172
 173 /*
 174 void Engine::fetchMeetings()
 175 {
 176         qDebug() << "Engine::fetchMeetings for " << iCurrentRoom;
 177         QDateTime from( iWindowManager->weeklyView()->beginnigOfShownWeek() );
 178         QDateTime to( from.addDays( 7 ) );
 179         // fetchMeetings( from, to, iWindowManager->weeklyView()->currentRoom() );
 180         // Signal is connected to the currentRoomChanged slot which keeps the iCurrentRoom up to date
 181         fetchMeetings( from, to, iCurrentRoom );
 182 }
 183 */
 184
 185 void Engine::fetchMeetingDetails( Meeting *aMeeting )
 186 {
 187         qDebug() << "Engine::fetchMeetingDetails( Meeting* )";
 188 /*      iWindowManager->showProgressBar(tr("Please Wait"), true);
 189         iWindowManager->updateProgressBar(tr("Fetching Meeting Details...") );
 190         connect(iWindowManager,
 191         SIGNAL( progressBarCancelled() ), this,
 192         SLOT( fetchMeetingDetailsCancelled() ));
 193         iCommunication->fetchMeetingDetails( *aMeeting); */
 194         iCommunication->fetchMeetingDetails( *aMeeting );
 195 }
 196
 197 void Engine::meetingsFetched( const QList<Meeting*> &aMeetings )
 198 {
 199         qDebug() << "Engine::meetingsFetched( const QList<Meeting*> & )";
 200         // TODO: should check if this week's meetings were fetched
 201         if( iCommunicationFailed || !iCurrentWeekFetched )
 202         {
 203                 iCurrentWeekFetched = true;
 204                 iCommunicationFailed = false;
 205                 iUIManager->connectionEstablished();
 206         }
 207
 208         for ( int i = 0; i < iMeetings.count(); ++i )
 209         {
 210                 Meeting* m = iMeetings.takeAt( i );
 211                 delete m;
 212         }
 213         iMeetings.clear();
 214         for ( int i = 0; i < aMeetings.count(); ++i ) {
 215                 Meeting* m = new Meeting( *( aMeetings.at( i ) ) );
 216                 iMeetings.append( m );
 217         }
 218
 219         // refresh room status info
 220         roomStatusInfoNeeded( defaultRoom() );
 221 }
 222
 223 void Engine::errorHandler( int aCode, const QString &aAddInfo )
 224 {
 225         if( aCode >= 100 && aCode < 150 )
 226         {
 227                 iCommunicationFailed = true;
 228                 if ( iUIManager != 0 ) iUIManager->connectionLost();
 229         }
 230         if ( iWindowManager != 0 )
 231         {
 232                 iWindowManager->error( ErrorMapper::codeToString( aCode, aAddInfo ) );
 233         }
 234 }
 235
 236 void Engine::fetchMeetings( const QDateTime &aFrom, const QDateTime &aUntil, const Room *aIn )
 237 {
 238         qDebug()
 239                         << "Engine::fetchMeetings( const QDateTime &, const QDateTime &, const Room * )";
 240         iCommunication->fetchMeetings(aFrom, aUntil, *aIn);
 241 }
 242
 243 void Engine::cancelFetchMeetingDetails()
 244 {
 245         iCommunication->cancelFetchMeetingDetails();
 246 }
 247
 248 void Engine::shownWeekChanged( QDate aFrom )
 249 {
 250         qDebug() << "[Engine::shownWeekChanged] <Invoked>";
 251         QDateTime from( aFrom );
 252         QDateTime to( aFrom.addDays( 7 ), QTime( 23, 59 ) );
 253         qDebug() << "[Engine::shownWeekChanged] <From " << aFrom.toString( "d.m. h:mm" ) << " to " << to.toString( "d.m. h:mm" ) << ">";
 254         iCommunication->fetchMeetings( from, to, *defaultRoom() );
 255 //      fetchMeetings( from, to, iWindowManager->weeklyView()->currentRoom() );
 256 }
 257
 258 void Engine::changeDeviceMode( bool aChange )
 259 {
 260         if ( aChange )
 261         {
 262                 connect( iDevice, SIGNAL( changingModeFailed() ), this, SLOT( changeModeFailed() ) );
 263                 iAutoRefresh->stop(); // Stop the meeting update
 264         }
 265         iDevice->changeMode( aChange );
 266 }
 267
 268 void Engine::changeModeFailed()
 269 {
 270         qDebug() << "Engine::progressBarCancelled()";
 271         iDevice->changeMode( false );
 272         iAutoRefresh->start(); //we start the metting updating
 273 }
 274
 275 void Engine::initUserInterface()
 276 {
 277         qDebug() << "[Engine::initUserInterface] <Invoked>";
 278
 279         // Initialize the window manager and connect what ever signals can be connected
 280         iWindowManager = new WindowManager;
 281         // Create the UIManager which internally handles most of the UI actions
 282         iUIManager = new UIManager( this, iWindowManager );
 283
 284         connect( iWindowManager, SIGNAL( eventDetected() ), this, SLOT( handleViewEvent() ) );
 285         connect( iWindowManager, SIGNAL( previousViewRestored() ), iUIManager, SLOT( previousViewRestored() ) );
 286         connect( iWindowManager, SIGNAL( dialogActivated() ), this, SLOT( dialogActivated() ) );
 287         connect( iWindowManager, SIGNAL( dialogDeactivated() ), this, SLOT( dialogDeactivated() ) );
 288
 289         // Show the UI
 290         iWindowManager->setWindowState( Qt::WindowMaximized );
 291         iWindowManager->show();
 292         iUIManager->showMainView();
 293
 294         qDebug() << "[Engine::initUserInterface] <Finished>";
 295 }
 296
 297 void Engine::handleViewEvent()
 298 {
 299         if ( iIdleTimeCounter != 0 )
 300         {
 301                 // Restart the idle time counter when view event is received
 302                 iIdleTimeCounter->stop();
 303                 iIdleTimeCounter->start();
 304         }
 305 }
 306
 307 void Engine::initConfiguration()
 308 {
 309         iConfiguration = Configuration::instance();
 310         if ( iConfiguration == 0 )
 311         {
 312                 QTimer::singleShot( 0, this, SLOT( closeApplication() ) );
 313         }
 314         iCurrentRoom = iConfiguration->defaultRoom();
 315 }
 316
 317 void Engine::connectSignals()
 318 {
 319         // Connect engine objects signals to UIManager
 320         connect( iClock, SIGNAL( tick( QDateTime ) ), iUIManager, SLOT( updateTime( QDateTime ) ) );
 321         connect( iIdleTimeCounter, SIGNAL( timeout() ) , iUIManager, SLOT( roomStatusIndicatorRequested() ) );
 322
 323         iUIManager->connectDeviceManager( iDevice );
 324         iUIManager->connectCommunicationManager( iCommunication );
 325 }
 326
 327 void Engine::initCommunication()
 328 {
 329         // initialize communication
 330         iCommunication = new CommunicationManager( *(iConfiguration->connectionSettings()) );
 331         connect( iCommunication, SIGNAL( error( int, CommunicationManager::CommunicationType  ) ),
 332                         this, SLOT( errorHandler( int ) ) );
 333         connect( iCommunication, SIGNAL( meetingsFetched( const QList<Meeting*>& ) ),
 334                         this, SLOT( meetingsFetched( const QList<Meeting*>& ) ) );
 335 }
 336
 337 void Engine::initDevice()
 338 {
 339         // create device manager
 340         iDevice = new DeviceManager( iConfiguration->startupSettings() );
 341         connect( iDevice, SIGNAL( error( int, const QString& ) ), this, SLOT( errorHandler( int, const QString& ) ) );
 342         iDevice->initDeviceManager();
 343 }
 344
 345 void Engine::dialogActivated()
 346 {
 347         if ( iIdleTimeCounter != 0 )
 348         {
 349                 iIdleTimeCounter->stop();
 350         }
 351 }
 352
 353 void Engine::dialogDeactivated()
 354 {
 355         if ( iIdleTimeCounter != 0 )
 356         {
 357                 iIdleTimeCounter->start();
 358         }
 359 }
 360
 361 void Engine::previousViewRestored()
 362 {
 363         if ( iIdleTimeCounter != 0 )
 364         {
 365                 iIdleTimeCounter->start();
 366         }
 367 }
 368
 369 void Engine::stopIdleTimeCounter()
 370 {
 371         if ( iIdleTimeCounter != 0 )
 372         {
 373                 iIdleTimeCounter->stop();
 374         }
 375 }
 376
 377 void Engine::startIdleTimeCounter()
 378 {
 379         if ( iIdleTimeCounter != 0 )
 380         {
 381                 iIdleTimeCounter->start();
 382         }
 383 }
 384
 385 void Engine::currentRoomChanged(Room *aRoom)
 386 {
 387         iCurrentRoom = aRoom;
 388 }