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