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 #include "SettingsView.h"
  13 #include "RoomStatusIndicatorWidget.h"
  14 #include "PasswordDialog.h"
  15 #include "MeetingInfoDialog.h"
  16
  17 #include <QApplication>
  18 #include <QTimer>
  19 #include <QList>
  20 #include <QtDebug>
  21
  22 QTime Engine::endOfTheDay = QTime( 23, 59, 0, 0 ); // end of the day is 11:59pm
  23 const int IDLE_TIME_MULTIPLIER = 60000; // Multiplies milliseconds to minutes
  24
  25 // Macro to help deleting objects. This could be global.
  26 #define QT_DELETE(X) \
  27         if ( X != 0 ) \
  28         { \
  29                 delete X; \
  30                 X = 0; \
  31         }
  32
  33
  34 Engine::Engine() :
  35                 iClock( 0 ), iConfiguration( 0 ), iCommunication( 0 )
  36 {
  37         qDebug() << "Engine::Engine()";
  38
  39         initConfiguration();
  40         initDevice();
  41         initCommunication();
  42         initUserInterface();
  43
  44         //initialize idle time counter
  45         iIdleTimeCounter = new QTimer();
  46         iIdleTimeCounter->setSingleShot( true );
  47         // iIdleTimeCounter->setInterval( IDLE_TIME_MULTIPLIER * iConfiguration->displaySettings()->screensaver() );
  48         iIdleTimeCounter->setInterval( 10000 );
  49         iIdleTimeCounter->start();
  50         // connect( iIdleTimeCounter, SIGNAL( timeout() ), iWindowManager, SLOT( showRoomStatus() ) );
  51         connect( iIdleTimeCounter, SIGNAL( timeout() ), this, SLOT( idleTimerTimeout() ) );
  52
  53         // create application clock
  54         iClock = new Clock;
  55         connect( iClock, SIGNAL( tick( QDateTime ) ), this, SLOT( checkStatusOfAllRooms() ) );
  56         // connect( iClock, SIGNAL( tick( QDateTime ) ), iWindowManager, SLOT( distributeDateTimeInfo( QDateTime ) ) );
  57
  58         iAutoRefresh = new QTimer;
  59         iAutoRefresh->setInterval( iConfiguration->connectionSettings()->refreshInterval() * 1000 );
  60         iAutoRefresh->start();
  61         connect( iAutoRefresh, SIGNAL( timeout() ), iAutoRefresh, SLOT( start() ) );
  62 //      connect( iAutoRefresh, SIGNAL( timeout() ), this, SLOT( fetchMeetings() ) );
  63
  64         if( iDevice->currentOperationMode() == DeviceManager::KioskMode )
  65         {
  66                 iWindowManager->setFullscreen();
  67         }
  68
  69         connectSignals();
  70
  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( iRoomStatusIndicator );
  92         QT_DELETE( iSettingsView );
  93         QT_DELETE( iWeeklyView );
  94         QT_DELETE( iPasswordDialog );
  95         QT_DELETE( iWindowManager );
  96 }
  97
  98 void Engine::closeApplication()
  99 {
 100         qDebug() << "Engine::closeApplication()";
 101         // closes application after 1 second
 102         QTimer::singleShot( 1000, QApplication::instance(), SLOT( quit() ) );
 103 }
 104
 105 Room* Engine::defaultRoom()
 106 {
 107         qDebug() << "Engine::defaultRoom()";
 108         return iConfiguration->defaultRoom();
 109 }
 110
 111 void Engine::checkStatusOfAllRooms()
 112 {
 113 //      qDebug() << "Engine::checkStatusOfAllRooms()";
 114         // iterate trough on the rooms
 115         for ( int i = 0; i < iConfiguration->rooms().count(); i++ )
 116         {
 117                 // and check the status
 118                 roomStatusInfoNeeded( iConfiguration->rooms().at( i ) );
 119         }
 120 }
 121
 122 int Engine::indexOfMeetingAt( Room *aRoom, QDateTime aAt )
 123 {
 124 //      qDebug() << "Engine::indexOfMeetingAt( Room *, QDateTime )";
 125         for ( int i = 0; i < iMeetings.count(); i++ )
 126         {
 127                 // exchange server ensures that there is only one meeting in a room at a specified time
 128                 if ( aRoom->equals( iMeetings.at( i )->room() )
 129                           && iMeetings.at( i )->startsAt() <= aAt
 130                           && iMeetings.at( i )->endsAt() >= aAt )
 131                 {
 132                         return i;
 133                 }
 134         }
 135         return -1;
 136 }
 137
 138 int Engine::indexOfMeetingAfter( Room *aRoom, QDateTime aAfter )
 139 {
 140 //      qDebug() << "Engine::indexOfMeetingAfter( Room *, QDateTime )";
 141         // seeks for the next meeting on the SAME DAY
 142         int min = -1;
 143         for ( int i = 0; i < iMeetings.count(); i++ )
 144         {
 145                 // if the meeting is in the same room, on the same day but after the specified time
 146                 if ( aRoom->equals( iMeetings.at( i )->room() )
 147                           && iMeetings.at( i )->startsAt().date() == aAfter.date()
 148                           && iMeetings.at( i )->startsAt() > aAfter )
 149                 {
 150                         // if there was not any meeting find yet or the previously found is a later one then the (i)th
 151                         if ( min == -1
 152                                   || iMeetings.at( min )->startsAt() > iMeetings.at( i )->startsAt() )
 153                         {
 154                                 min = i;
 155                         }
 156                 }
 157         }
 158         return min;
 159 }
 160
 161 void Engine::roomStatusInfoNeeded( Room *aRoom )
 162 {
 163 //      qDebug() << "Engine::roomStatusInfoNeeded( Room * )";
 164         if ( aRoom == 0 )
 165         {
 166                 return;
 167         }
 168
 169         int indexOfCurrentMeeting = indexOfMeetingAt( aRoom, iClock->datetime() );
 170         int indexOfNextMeeting = indexOfMeetingAfter( aRoom, iClock->datetime() );
 171
 172         // if there is no meeting, then status is Free; otherwise Busy
 173         Room::Status status = ( indexOfCurrentMeeting == -1 ) ? Room::FreeStatus : Room::BusyStatus;
 174         // if room is Busy, then check end time, otherwise...
 175         QTime until = ( status == Room::BusyStatus ) ? iMeetings.at( indexOfCurrentMeeting )->endsAt().time() :
 176                           // ...if there is meeting following on the same day then check end time, otherwise end is the of the working day
 177                           (( indexOfNextMeeting != -1 ) ? iMeetings.at( indexOfNextMeeting )->startsAt().time() : Engine::endOfTheDay );
 178
 179         //currently works only for deafult room
 180 //      if( aRoom->equals( *(defaultRoom() ) ) )
 181 //              iWindowManager->roomStatusChanged( aRoom, status, until );
 182 }
 183
 184 void Engine::fetchMeetings()
 185 {
 186         Room *room = defaultRoom();
 187         qDebug() << "Engine::fetchMeetings for " << room->name();
 188         fetchMeetings( iClock->datetime(), iClock->datetime().addDays( 7 ), room );
 189 }
 190
 191 void Engine::fetchMeetingDetails( Meeting *aMeeting )
 192 {
 193         qDebug() << "Engine::fetchMeetingDetails( Meeting* )";
 194         iWindowManager->showProgressBar( tr("Please Wait"), true );
 195         iWindowManager->updateProgressBar( tr("Fetching Meeting Details...") );
 196         connect( iWindowManager,
 197                          SIGNAL( progressBarCancelled() ),
 198                          this,
 199                          SLOT( fetchMeetingDetailsCancelled() )
 200                         );
 201         iCommunication->fetchMeetingDetails( *aMeeting );
 202 }
 203
 204 bool Engine::isMeetingInList( const QList<Meeting*> &aList, const Meeting *aMeeting )
 205 {
 206         qDebug() << "Engine::isMeetingInList( const QList<Meeting*> &, const Meeting * )";
 207         for ( int i = 0; i < aList.count(); i++ )
 208         {
 209                 if ( aMeeting->equals( *(aList.at( i )) ) )
 210                 {
 211                         return true;
 212                 }
 213         }
 214         return false;
 215 }
 216
 217 void Engine::meetingsFetched( const QList<Meeting*> &aMeetings )
 218 {
 219         qDebug() << "Engine::meetingsFetched( const QList<Meeting*> & )";
 220         // check if there is any new meeting in the list came from the server -> added
 221         for ( int i = 0; i < aMeetings.count(); i++ )
 222         {
 223                 // if the (i)th meeting is not in the local meeting list
 224                 if ( !isMeetingInList( iMeetings, aMeetings.at( i ) ) )
 225                 {
 226                         // add to the local database =)
 227                         Meeting* m = new Meeting( *(aMeetings.at( i )) );
 228                         iMeetings.append( m );
 229                         // and signal the changes
 230                         iWeeklyView->insertMeeting( m );
 231                 }
 232         }
 233
 234         // check if there is any meeting NOT in the list came from the server -> deleted
 235         for ( int i = 0; i < iMeetings.count(); i++ )
 236         {
 237                 // if the (i)th meeting is in the local but NOT in the server's meeting list
 238                 if ( !isMeetingInList( aMeetings, iMeetings.at( i ) ) )
 239                 {
 240                         Meeting* m = iMeetings.takeAt( i );
 241                         // signal the changes
 242                         iWeeklyView->deleteMeeting( m );
 243                         // delete the meeting from the local list
 244                         delete m;
 245                 }
 246         }
 247
 248         // refresh room status info
 249         roomStatusInfoNeeded( defaultRoom() );
 250 }
 251
 252 void Engine::meetingDetailsFetched( Meeting &aDetailedMeeting )
 253 {
 254         qDebug() << "Engine::meetingDetailsFetched( Meeting & )";
 255
 256         if ( iMeetingInfoDialog != 0 )
 257         {
 258                 iMeetingInfoDialog->setMeeting( &aDetailedMeeting );
 259                 iWindowManager->showDialog( iMeetingInfoDialog );
 260         }
 261
 262 }
 263
 264 void Engine::errorHandler( int aCode, const QString &aAddInfo )
 265 {
 266         qDebug() << "Engine::ErrorHandler, aCode: " << aCode;
 267         // inform UI about the problem
 268         if( aCode >= 100 && aCode <= 150 )
 269                 qDebug() << "CommunicationManager signaled an error:" << aCode;
 270         // iWindowManager->closeProgressBar();
 271         // iWindowManager->error( ErrorMapper::codeToString( aCode, aAddInfo ) );
 272 }
 273
 274 void Engine::currentRoomChanged( Room *aCurrentRoom )
 275 {
 276         qDebug() << "Engine::currentRoomChanged to " << aCurrentRoom->name();
 277 //      QDateTime from( iWindowManager->weeklyView()->beginnigOfShownWeek() );
 278 //      QDateTime to( from.addDays( 8 ) );
 279 //      fetchMeetings( from, to, aCurrentRoom );
 280 }
 281
 282 void Engine::fetchMeetings( const QDateTime &aFrom, const QDateTime &aUntil, const Room *aIn )
 283 {
 284         qDebug() << "Engine::fetchMeetings( const QDateTime &, const QDateTime &, const Room * )";
 285         iCommunication->fetchMeetings( aFrom, aUntil, *aIn );
 286 }
 287
 288 void Engine::shownWeekChanged( QDate aFrom )
 289 {
 290         qDebug() << "Engine::shownWeekChanged( QDate )";
 291         QDateTime from( aFrom );
 292         QDateTime to( aFrom.addDays( 7 ), QTime( 23, 59 ) );
 293         qDebug() << "Engine::shownWeekChanged " << aFrom.toString( "d.m. h:mm" ) << " to " << to.toString( "d.m. h:mm" );
 294 //      fetchMeetings( from, to, iWindowManager->weeklyView()->currentRoom() );
 295 }
 296
 297 void Engine::changeModeOrdered( DeviceManager::OperationMode aMode )
 298 {
 299         qDebug() << "Engine::changeModeOrdered( DeviceManager::OperationMode )";
 300         QString message = tr( "You are about to change operation mode to %1." )
 301                                 .arg( iDevice->operationModeToString( aMode ) );
 302
 303         // iPasswordDialog->update( message );
 304         iWindowManager->showDialog( static_cast<QDialog *>( iPasswordDialog ) );
 305 }
 306
 307 void Engine::passwordEntered( PasswordDialog::PasswordStatus aPasswordStatus )
 308 {
 309         qDebug() << "Engine::passwordEntered( PasswordDialog::PasswordStatus )";
 310 //      iWindowManager->closePasswordDialog();
 311
 312         switch ( aPasswordStatus )
 313         {
 314                 case PasswordDialog::Correct :
 315                 {
 316 //                      iWindowManager->showProgressBar( "Changing current operation mode." );
 317 //                      connect( iWindowManager, SIGNAL( progressBarCancelled() ), this, SLOT( progressBarCancelled() ) );
 318 //                      connect( iDevice, SIGNAL( changingMode( const QString & ) ),
 319 //                                      iWindowManager, SLOT( updateProgressBar( const QString & ) ) );
 320                         // TODO : Connect the signal directory to progress bar dialog which should be instance in engine
 321 //                      connect( iDevice, SIGNAL( changingMode( const QString & ) ),
 322 //                                      iWindowManager, SLOT( updateProgressBar( const QString & ) ) );
 323                         connect( iDevice, SIGNAL( changingModeFailed() ), this, SLOT( progressBarCancelled() ) );
 324                         iDevice->changeMode( true );
 325                         break;
 326                 }
 327                 case PasswordDialog::Incorrect :
 328                 {
 329 //                      iWindowManager->error( tr( "Incorrect password." ) );
 330                         iDevice->changeMode( false );
 331                         break;
 332                 }
 333                 default : //case PasswordDialog::Canceled
 334                 {
 335                         iDevice->changeMode( false );
 336                 }
 337         }
 338 }
 339
 340 void Engine::progressBarCancelled()
 341 {
 342         qDebug() << "Engine::progressBarCancelled()";
 343         //TODO: cancel the on-going event
 344 //      iWindowManager->closeProgressBar();
 345         iDevice->changeMode( false );
 346 }
 347
 348 void Engine::initUserInterface()
 349 {
 350         qDebug() << "[Engine::initUserInterface] <Invoked>";
 351         // Initialize the window manager and connect what ever signals can be connected
 352         iWindowManager = new WindowManager;
 353         connect( iWindowManager, SIGNAL( eventDetected() ), this, SLOT( handleViewEvent() ) );
 354         connect( iWindowManager, SIGNAL( previousViewRestored() ), this, SLOT( previousViewRestored() ) );
 355         connect( iWindowManager, SIGNAL( dialogActivated() ), this, SLOT( dialogActivated() ) );
 356         connect( iWindowManager, SIGNAL( dialogDeactivated() ), this, SLOT( dialogDeactivated() ) );
 357
 358         // Initialize the weekly view and connect what ever signals can be connected at this stage
 359         iWeeklyView = new WeeklyViewWidget(QDateTime::currentDateTime(), iConfiguration);
 360         connect( iWeeklyView, SIGNAL( settingsButtonClicked() ), this, SLOT( settingsViewRequested() ) );
 361         connect( iWeeklyView, SIGNAL( currentRoomChange( Room * ) ) , this, SLOT( currentRoomChange( Room * ) ) );
 362         connect( iWeeklyView, SIGNAL( meetingActivated( Meeting * ) ), this, SLOT( fetchMeetingDetails( Meeting * ) ) ) ;
 363         connect( iWeeklyView, SIGNAL( shownWeekChanged( QDate ) ) , this, SLOT( shownWeekChanged( QDate ) ) );
 364
 365         // Initialize the settings view
 366         iSettingsView = new SettingsView;
 367         connect( iSettingsView, SIGNAL( okClicked() ) , this, SLOT( settingsOkClicked() ) );
 368
 369         // Initialize the room status indicator
 370         iRoomStatusIndicator = new RoomStatusIndicatorWidget( defaultRoom(), Room::FreeStatus, QTime::currentTime(), iConfiguration->displaySettings()->dateFormat() );
 371
 372         // Create password dialog
 373         iPasswordDialog = new PasswordDialog( iConfiguration->adminPassword(), tr("No Text Set"), tr("Title") );
 374         connect( iPasswordDialog, SIGNAL( passwordEntered( PasswordDialog::PasswordStatus ) ), this, SLOT( passwordEntered( PasswordDialog::PasswordStatus ) ) );
 375
 376         // Show the UI
 377         iWindowManager->setWindowState( Qt::WindowMaximized );
 378         iWindowManager->show();
 379         iWindowManager->showView( iWeeklyView );
 380
 381         qDebug() << "[Engine::initUserInterface] <Finished>";
 382 }
 383
 384 void Engine::settingsViewRequested()
 385 {
 386         if ( iSettingsView != 0 )
 387         {
 388                 iWindowManager->showView( static_cast<ViewBase *>( iSettingsView ) );
 389                 // Room status indicator will not be shown when settings view is active
 390                 iIdleTimeCounter->stop();
 391         }
 392 }
 393
 394 void Engine::handleViewEvent()
 395 {
 396         qDebug() << "[Engine::handleViewEvent] <Invoked>";
 397         if ( iIdleTimeCounter != 0 )
 398         {
 399                 // Restart the idle time counter when view event is received
 400                 iIdleTimeCounter->stop();
 401                 iIdleTimeCounter->start();
 402         }
 403 }
 404
 405 void Engine::initConfiguration()
 406 {
 407         iConfiguration = Configuration::instance();
 408         if ( iConfiguration == 0 )
 409         {
 410                 QTimer::singleShot( 0, this, SLOT( closeApplication() ) );
 411         }
 412 }
 413
 414 void Engine::idleTimerTimeout()
 415 {
 416         if ( iRoomStatusIndicator != 0 )
 417         {
 418                 iWindowManager->showView( static_cast<ViewBase *>( iRoomStatusIndicator ) );
 419         }
 420 }
 421
 422 void Engine::settingsOkClicked()
 423 {
 424         if ( iWeeklyView != 0 )
 425         {
 426                 iWindowManager->showView( iWeeklyView );
 427                 // Start the idle time counter when we return to the main view
 428                 iIdleTimeCounter->start();
 429         }
 430 }
 431
 432 void Engine::connectSignals()
 433 {
 434         // Handle weekly view signal connections
 435         connect( iClock, SIGNAL( tick( QDateTime ) ), iWeeklyView, SLOT( setCurrentDateTime( QDateTime ) ) );
 436 }
 437
 438 void Engine::initCommunication()
 439 {
 440         // initialize communication
 441         iCommunication = new CommunicationManager( *(iConfiguration->connectionSettings()) );
 442         connect( iCommunication, SIGNAL( error( int, CommunicationManager::CommunicationType  ) ),
 443                         this, SLOT( errorHandler( int ) ) );
 444         connect( iCommunication, SIGNAL( meetingsFetched( const QList<Meeting*>& ) ),
 445                         this, SLOT( meetingsFetched( const QList<Meeting*>& ) ) );
 446         connect( iCommunication, SIGNAL( meetingDetailsFetched( Meeting& ) ),
 447                         this, SLOT( meetingDetailsFetched( Meeting& ) ) );
 448 }
 449
 450 void Engine::initDevice()
 451 {
 452         // create device manager
 453         iDevice = new DeviceManager( iConfiguration->startupSettings() );
 454         connect( iDevice, SIGNAL( error( int, const QString& ) ), this, SLOT( errorHandler( int, const QString& ) ) );
 455         connect( iDevice, SIGNAL( changeModeOrdered( DeviceManager::OperationMode ) ),
 456                         this, SLOT( changeModeOrdered( DeviceManager::OperationMode ) ) );
 457         iDevice->initDeviceManager();
 458 }
 459
 460 void Engine::dialogActivated()
 461 {
 462         if ( iIdleTimeCounter != 0 )
 463         {
 464                 iIdleTimeCounter->stop();
 465         }
 466 }
 467
 468 void Engine::dialogDeactivated()
 469 {
 470         if ( iIdleTimeCounter != 0 )
 471         {
 472                 iIdleTimeCounter->start();
 473         }
 474 }
 475
 476 void Engine::previousViewRestored()
 477 {
 478         if ( iIdleTimeCounter != 0 )
 479         {
 480                 iIdleTimeCounter->start();
 481         }
 482 }
 483
 484 void Engine::fetchMeetingDetailsCancelled()
 485 {
 486         iCommunication->cancelFetchMeetingDetails();
 487         iWindowManager->closeProgressBar();
 488 }