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