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 "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( tick( QDateTime )/*checkStatusOfAllRooms()*/ ) );
  52         // connect( iClock, SIGNAL( tick( QDateTime ) ), iWindowManager, SLOT( distributeDateTimeInfo( QDateTime ) ) );
  53
  54         // Create auto refresh timer
  55         iAutoRefresh = new QTimer;
  56
  57         iAutoRefresh->setInterval(Configuration::instance()->getRefreshinterval() * 1000);
  58
  59         iAutoRefresh->start();
  60         connect( iAutoRefresh, SIGNAL( timeout() ), iAutoRefresh, SLOT( start() ) );
  61         connect( iAutoRefresh, SIGNAL( timeout() ), this, SLOT( updateRoomInfo() ) );
  62         // connect( iAutoRefresh, SIGNAL( timeout() ), this, SLOT( fetchMeetings() ) );
  63
  64         if( iDevice->currentOperationMode() == DeviceManager::KioskMode )
  65         {
  66                 iWindowManager->setFullscreen();
  67         }
  68
  69         connectSignals();
  70         connect( Configuration::instance(), SIGNAL( configurationChanged() ), this, SLOT( configurationChanged() ) );
  71         // QTimer::singleShot( 0, this, SLOT( fetchMeetings() ) );
  72
  73         // TODO: continue implementation
  74 }
  75
  76 Engine::~Engine()
  77 {
  78         qDebug() << "Engine::~Engine()";
  79         while ( !iMeetings.isEmpty() )
  80                 delete iMeetings.takeFirst();
  81
  82         if ( iIdleTimeCounter != 0 )
  83         {
  84                 iIdleTimeCounter->stop();
  85                 delete iIdleTimeCounter;
  86                 iIdleTimeCounter = 0;
  87         }
  88         QT_DELETE( iClock );
  89         QT_DELETE( iDevice );
  90
  91         QT_DELETE( iUIManager );
  92         QT_DELETE( iWindowManager );
  93 }
  94
  95 void Engine::closeApplication()
  96 {
  97         qDebug() << "Engine::closeApplication()";
  98         // closes application after 1 second
  99         QTimer::singleShot( 1000, QApplication::instance(), SLOT( quit() ));
 100 }
 101
 102 Room* Engine::defaultRoom()
 103 {
 104         qDebug() << "Engine::defaultRoom()";
 105         return iConfiguration->defaultRoom();
 106 }
 107
 108 void Engine::checkStatusOfAllRooms()
 109 {
 110         // TODO: Check if date has changed
 111         // iterate trough on the rooms
 112         for (int i = 0; i < iConfiguration->rooms().count(); i++)
 113         {
 114                 // and check the status
 115                 roomStatusInfoNeeded( iConfiguration->rooms().at(i) );
 116         }
 117 }
 118
 119 int Engine::indexOfMeetingAt(Room *aRoom, QDateTime aAt)
 120 {
 121 //      qDebug() << "Engine::indexOfMeetingAt( Room *, QDateTime )";
 122         for ( int i = 0; i < iMeetings.count(); i++ )
 123         {
 124                 // exchange server ensures that there is only one meeting in a room at a specified time
 125                 if (aRoom->equals(iMeetings.at( i )->room() ) && iMeetings.at( i )->startsAt() <= aAt && iMeetings.at( i )->endsAt() >= aAt)
 126                 {
 127                         return i;
 128                 }
 129         }
 130         return -1;
 131 }
 132
 133 int Engine::indexOfMeetingAfter(Room *aRoom, QDateTime aAfter)
 134 {
 135 //      qDebug() << "Engine::indexOfMeetingAfter( Room *, QDateTime )";
 136         // seeks for the next meeting on the SAME DAY
 137         int min = -1;
 138         for (int i = 0; i < iMeetings.count(); i++)
 139         {
 140                 // if the meeting is in the same room, on the same day but after the specified time
 141                 if (aRoom->equals(iMeetings.at( i )->room() ) && iMeetings.at( i )->startsAt().date() == aAfter.date() && iMeetings.at( i )->startsAt() > aAfter)
 142                 {
 143                         // if there was not any meeting find yet or the previously found is a later one then the (i)th
 144                         if (min == -1 || iMeetings.at( min )->startsAt() > iMeetings.at( i )->startsAt() )
 145                         {
 146                                 min = i;
 147                         }
 148                 }
 149         }
 150         return min;
 151 }
 152
 153 void Engine::roomStatusInfoNeeded(Room *aRoom)
 154 {
 155 //      qDebug() << "Engine::roomStatusInfoNeeded( Room * )";
 156         if ( aRoom == 0 )
 157         {
 158                 return;
 159         }
 160
 161         int indexOfCurrentMeeting = indexOfMeetingAt(aRoom, iClock->datetime() );
 162         int indexOfNextMeeting = indexOfMeetingAfter(aRoom, iClock->datetime() );
 163
 164         // if there is no meeting, then status is Free; otherwise Busy
 165         Room::Status status = (indexOfCurrentMeeting == -1 ) ? Room::FreeStatus : Room::BusyStatus;
 166         // if room is Busy, then check end time, otherwise...
 167         QTime until = (status == Room::BusyStatus ) ? iMeetings.at( indexOfCurrentMeeting )->endsAt().time() :
 168         // ...if there is meeting following on the same day then check end time, otherwise end is the of the working day
 169         ( ( indexOfNextMeeting != -1 ) ? iMeetings.at( indexOfNextMeeting )->startsAt().time() : Engine::endOfTheDay );
 170
 171         //currently works only for default room
 172         if ( aRoom->equals( *(iCurrentRoom) ) )
 173         {
 174                 emit roomStatusChanged( status, until );
 175         }
 176 }
 177
 178 void Engine::fetchMeetingDetails( Meeting *aMeeting )
 179 {
 180         qDebug() << "Engine::fetchMeetingDetails( Meeting* )";
 181         iCommunication->fetchMeetingDetails( *aMeeting );
 182 }
 183
 184 void Engine::meetingsFetched( const QList<Meeting*> &aMeetings )
 185 {
 186         qDebug() << "Engine::meetingsFetched( const QList<Meeting*> & )";
 187         // TODO: should check if this week's meetings were fetched
 188         if( iCommunicationFailed || !iCurrentWeekFetched )
 189         {
 190                 iCurrentWeekFetched = true;
 191                 iCommunicationFailed = false;
 192                 iUIManager->connectionEstablished();
 193         }
 194
 195         for ( int i = 0; i < iMeetings.count(); ++i )
 196         {
 197                 // TODO: Check if these are current week's meetings and do not overwrite those
 198                 Meeting* m = iMeetings.takeAt( i );
 199                 delete m;
 200         }
 201         iMeetings.clear();
 202         for ( int i = 0; i < aMeetings.count(); ++i ) {
 203                 Meeting* m = new Meeting( *( aMeetings.at( i ) ) );
 204                 iMeetings.append( m );
 205         }
 206
 207         // refresh room status info
 208         roomStatusInfoNeeded( iCurrentRoom /*defaultRoom()*/ );
 209 }
 210
 211 void Engine::errorHandler( int aCode, const QString &aAddInfo )
 212 {
 213         if( aCode >= 100 && aCode < 150 )
 214         {
 215                 iCommunicationFailed = true;
 216
 217                 if ( iUIManager != 0 )
 218                         {
 219                                 iUIManager->connectionLost();
 220                         }
 221         }
 222         if ( iWindowManager != 0 )
 223         {
 224                 iWindowManager->error( ErrorMapper::codeToString( aCode, aAddInfo ) );
 225         }
 226 }
 227
 228 void Engine::fetchMeetings( const int aWeek, const int aYear, const Room *aIn )
 229 {
 230         qDebug()
 231                         << "Engine::fetchMeetings( const int aWeek, const int aYear, const Room * )";
 232         iCommunication->fetchMeetings(aWeek, aYear, *aIn);
 233 }
 234
 235 void Engine::cancelFetchMeetingDetails()
 236 {
 237         iCommunication->cancelFetchMeetingDetails();
 238 }
 239
 240 void Engine::shownWeekChanged( QDate aFrom )
 241 {
 242         qDebug() << "[Engine::shownWeekChanged] <Invoked>";
 243         iCommunication->fetchMeetings( aFrom.weekNumber(), aFrom.year(), *iCurrentRoom/*defaultRoom()*/ );
 244 }
 245
 246 void Engine::changeDeviceMode()
 247 {
 248         connect( iDevice, SIGNAL( changeModeFailed() ), this, SLOT( changeModeFailed() ) );
 249         iAutoRefresh->stop(); // Stop the meeting update
 250         iDevice->changeMode();
 251 }
 252
 253 void Engine::changeModeFailed()
 254 {
 255         qDebug() << "Engine::progressBarCancelled()";
 256         iAutoRefresh->start(); //we start the metting updating
 257 }
 258
 259 void Engine::initUserInterface()
 260 {
 261         qDebug() << "[Engine::initUserInterface] <Invoked>";
 262
 263         // Initialize the window manager and connect what ever signals can be connected
 264         iWindowManager = new WindowManager;
 265         // Create the UIManager which internally handles most of the UI actions
 266         iUIManager = new UIManager( this, iWindowManager );
 267
 268         connect( iWindowManager, SIGNAL( eventDetected() ), this, SLOT( handleViewEvent() ) );
 269         connect( iWindowManager, SIGNAL( previousViewRestored() ), iUIManager, SLOT( previousViewRestored() ) );
 270         connect( iWindowManager, SIGNAL( dialogActivated() ), this, SLOT( dialogActivated() ) );
 271         connect( iWindowManager, SIGNAL( dialogDeactivated() ), this, SLOT( dialogDeactivated() ) );
 272
 273         // Show the UI
 274         iWindowManager->setWindowState( Qt::WindowMaximized );
 275         iWindowManager->show();
 276         iUIManager->showMainView();
 277
 278         // This triggers the meeting fetching
 279         iUIManager->currentRoomChanged( this->iCurrentRoom );
 280
 281         qDebug() << "[Engine::initUserInterface] <Finished>";
 282 }
 283
 284 void Engine::handleViewEvent()
 285 {
 286         if ( iIdleTimeCounter != 0 && iIdleTimeCounter->isActive())
 287         {
 288                 // Restart the idle time counter when view event is received
 289                 iIdleTimeCounter->stop();
 290                 iIdleTimeCounter->start();
 291         }
 292 }
 293
 294 void Engine::initConfiguration()
 295 {
 296         iConfiguration = Configuration::instance();
 297         if ( iConfiguration == 0 )
 298         {
 299                 QTimer::singleShot( 0, this, SLOT( closeApplication() ) );
 300         }
 301         iCurrentRoom = iConfiguration->defaultRoom();
 302 }
 303
 304 void Engine::connectSignals()
 305 {
 306         // Connect engine objects signals to UIManager
 307         connect( iClock, SIGNAL( tick( QDateTime ) ), iUIManager, SLOT( updateTime( QDateTime ) ) );
 308         connect( iIdleTimeCounter, SIGNAL( timeout() ) , iUIManager, SLOT( roomStatusIndicatorRequested() ) );
 309
 310         iUIManager->connectDeviceManager( iDevice );
 311         iUIManager->connectCommunicationManager( iCommunication );
 312 }
 313
 314 void Engine::initCommunication()
 315 {
 316         // initialize communication
 317         iCommunication = new CommunicationManager(/* *(iConfiguration->connectionSettings()) */);
 318         connect( iCommunication, SIGNAL( error( int, CommunicationManager::CommunicationType  ) ),
 319                         this, SLOT( errorHandler( int ) ) );
 320         connect( iCommunication, SIGNAL( meetingsFetched( const QList<Meeting*>& ) ),
 321                         this, SLOT( meetingsFetched( const QList<Meeting*>& ) ) );
 322 }
 323
 324 void Engine::initDevice()
 325 {
 326         // create device manager
 327         iDevice = new DeviceManager( iConfiguration->startupSettings() );
 328         connect( iDevice, SIGNAL( error( int, const QString& ) ), this, SLOT( errorHandler( int, const QString& ) ) );
 329         iDevice->initDeviceManager();
 330 }
 331
 332 void Engine::dialogActivated()
 333 {
 334         if ( iIdleTimeCounter != 0 )
 335         {
 336                 iIdleTimeCounter->stop();
 337         }
 338 }
 339
 340 void Engine::dialogDeactivated()
 341 {
 342         if ( iIdleTimeCounter != 0 )
 343         {
 344                 iIdleTimeCounter->start();
 345         }
 346 }
 347
 348 void Engine::previousViewRestored()
 349 {
 350         if ( iIdleTimeCounter != 0 )
 351         {
 352                 iIdleTimeCounter->start();
 353         }
 354 }
 355
 356 void Engine::stopIdleTimeCounter()
 357 {
 358         if ( iIdleTimeCounter != 0 )
 359         {
 360                 iIdleTimeCounter->stop();
 361         }
 362 }
 363
 364 void Engine::startIdleTimeCounter()
 365 {
 366         if ( iIdleTimeCounter != 0 )
 367         {
 368                 iIdleTimeCounter->start();
 369         }
 370 }
 371
 372 void Engine::currentRoomChanged(Room *aRoom)
 373 {
 374         qDebug() << "[Engine::currentRoomChanged] <invoked>";
 375         iCurrentRoom = aRoom;
 376         roomStatusInfoNeeded( iCurrentRoom );
 377 }
 378
 379 void Engine::tick( QDateTime aCurrentDateTime )
 380 {
 381         // Called once every second
 382         checkStatusOfAllRooms();
 383         if( aCurrentDateTime.date() !=  iCurrentDate)
 384         {
 385                 // Check if week has changed and fetch meetings for this week
 386                 if( aCurrentDateTime.date().weekNumber() != iCurrentDate.weekNumber()
 387                         || aCurrentDateTime.date().year() != iCurrentDate.year() )
 388                 {
 389                         qDebug() << "[Engine::tick] detected week change, fetching meetings";
 390                         fetchMeetings( aCurrentDateTime.date().weekNumber(), aCurrentDateTime.date().year(), iCurrentRoom );
 391                 }
 392         }
 393         iCurrentDate = aCurrentDateTime.date();
 394 }
 395
 396
 397 void Engine::updateRoomInfo()
 398 {
 399         qDebug() << "ENGINE::: updateMeetings";
 400         roomStatusInfoNeeded(iCurrentRoom);
 401 }
 402
 403 void Engine::configurationChanged()
 404 {
 405         iAutoRefresh->setInterval(Configuration::instance()->getRefreshinterval() * 1000);
 406 }