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 "WeeklyViewWidget.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 Engine::Engine() :
  22                 iClock( 0 ), iConfiguration( Configuration::instance() ), iCommunication( 0 )
  23 {
  24         qDebug() << "Engine::Engine()";
  25         iCommunicationFailed = false;
  26         // if reading of configuration fails, signal that initialization failed
  27         if ( iConfiguration == 0 )
  28         {
  29                 QTimer::singleShot( 0, this, SLOT( closeApplication() ) );
  30                 return;
  31         }
  32
  33         //initialize window manager
  34         iWindowManager = new WindowManager( iConfiguration );
  35         connect( iWindowManager, SIGNAL( roomStatusInfoNeeded( Room * ) ), this, SLOT( roomStatusInfoNeeded( Room * ) ) );
  36         connect( iWindowManager, SIGNAL( observedEventDetected() ), this, SLOT( observedEventDetected() ) );
  37         connect( iWindowManager, SIGNAL( meetingActivated( Meeting * ) ), this, SLOT( fetchMeetingDetails( Meeting * ) ) );
  38         connect( iWindowManager, SIGNAL( currentRoomChanged( Room * ) ), this, SLOT( currentRoomChanged( Room * ) ) );
  39         connect( iWindowManager, SIGNAL( shownWeekChanged( QDate ) ), this, SLOT( shownWeekChanged( QDate ) ) );
  40         connect( iWindowManager, SIGNAL( passwordEntered( PasswordDialog::PasswordStatus ) ),
  41                         this, SLOT( passwordEntered( PasswordDialog::PasswordStatus ) ) );
  42
  43
  44         // initialize communication
  45         iCommunication = new CommunicationManager( *(iConfiguration->connectionSettings()) );
  46         connect( iCommunication, SIGNAL( error( int, CommunicationManager::CommunicationType  ) ),
  47                         this, SLOT( errorHandler( int ) ) );
  48         connect( iCommunication, SIGNAL( meetingsFetched( const QList<Meeting*>& ) ),
  49                         this, SLOT( meetingsFetched( const QList<Meeting*>& ) ) );
  50         connect( iCommunication, SIGNAL( meetingDetailsFetched( Meeting& ) ),
  51                         this, SLOT( meetingDetailsFetched( Meeting& ) ) );
  52
  53         //initialize idle time counter
  54         iIdleTimeCounter = new QTimer();
  55         iIdleTimeCounter->setSingleShot( true );
  56         iIdleTimeCounter->setInterval( IDLE_TIME_MULTIPLIER * iConfiguration->displaySettings()->screensaver() );
  57         iIdleTimeCounter->start();
  58         connect( iIdleTimeCounter, SIGNAL( timeout() ), iWindowManager, SLOT( showRoomStatus() ) );
  59
  60         // create application clock
  61         iClock = new Clock;
  62         connect( iClock, SIGNAL( tick( QDateTime ) ), this, SLOT( checkStatusOfAllRooms() ) );
  63         connect( iClock, SIGNAL( tick( QDateTime ) ), iWindowManager, SLOT( distributeDateTimeInfo( QDateTime ) ) );
  64
  65         iAutoRefresh = new QTimer;
  66         iAutoRefresh->setInterval( iConfiguration->connectionSettings()->refreshInterval() * 1000 );
  67         iAutoRefresh->start();
  68         connect( iAutoRefresh, SIGNAL( timeout() ), iAutoRefresh, SLOT( start() ) );
  69         connect( iAutoRefresh, SIGNAL( timeout() ), this, SLOT( fetchMeetings() ) );
  70
  71         // create device manager
  72         iDevice = new DeviceManager( iConfiguration->startupSettings() );
  73         connect( iDevice, SIGNAL( error( int, const QString& ) ), this, SLOT( errorHandler( int, const QString& ) ) );
  74         connect( iDevice, SIGNAL( changeModeOrdered( DeviceManager::OperationMode ) ),
  75                         this, SLOT( changeModeOrdered( DeviceManager::OperationMode ) ) );
  76         iDevice->initDeviceManager();
  77
  78         if( iDevice->currentOperationMode() == DeviceManager::KioskMode )
  79                 iWindowManager->fullScreen();
  80
  81         QTimer::singleShot( 0, this, SLOT( fetchMeetings() ) );
  82
  83         // TODO: continue implementation
  84 }
  85
  86 Engine::~Engine()
  87 {
  88         qDebug() << "Engine::~Engine()";
  89         while ( !iMeetings.isEmpty() )
  90                 delete iMeetings.takeFirst();
  91         iIdleTimeCounter->stop();
  92         delete iIdleTimeCounter;
  93         iIdleTimeCounter = 0;
  94         delete iWindowManager;
  95         iWindowManager = 0;
  96         delete iClock;
  97         iClock = 0;
  98         delete iDevice;
  99         iDevice = 0;
 100 }
 101
 102 void Engine::closeApplication()
 103 {
 104         qDebug() << "Engine::closeApplication()";
 105         // closes application after 1 second
 106         QTimer::singleShot( 1000, QApplication::instance(), SLOT( quit() ) );
 107 }
 108
 109 void Engine::observedEventDetected()
 110 {
 111         qDebug() << "Engine::observedEventDetected()";
 112         iWindowManager->showWeeklyView();
 113         // prepare to restart idle counter
 114         if ( iIdleTimeCounter->isActive() )
 115         {
 116                 iIdleTimeCounter->stop();
 117         }
 118         // (re)start idle counter
 119         iIdleTimeCounter->start();
 120 }
 121
 122 Room* Engine::defaultRoom()
 123 {
 124         qDebug() << "Engine::defaultRoom()";
 125         return iConfiguration->defaultRoom();
 126 }
 127
 128 void Engine::checkStatusOfAllRooms()
 129 {
 130         qDebug() << "Engine::checkStatusOfAllRooms()";
 131         // iterate trough on the rooms
 132         for ( int i = 0; i < iConfiguration->rooms().count(); i++ )
 133         {
 134                 // and check the status
 135                 roomStatusInfoNeeded( iConfiguration->rooms().at( i ) );
 136         }
 137 }
 138
 139 int Engine::indexOfMeetingAt( Room *aRoom, QDateTime aAt )
 140 {
 141         qDebug() << "Engine::indexOfMeetingAt( Room *, QDateTime )";
 142         for ( int i = 0; i < iMeetings.count(); i++ )
 143         {
 144                 // exchange server ensures that there is only one meeting in a room at a specified time
 145                 if ( aRoom->equals( iMeetings.at( i )->room() )
 146                           && iMeetings.at( i )->startsAt() <= aAt
 147                           && iMeetings.at( i )->endsAt() >= aAt )
 148                 {
 149                         return i;
 150                 }
 151         }
 152         return -1;
 153 }
 154
 155 int Engine::indexOfMeetingAfter( Room *aRoom, QDateTime aAfter )
 156 {
 157         qDebug() << "Engine::indexOfMeetingAfter( Room *, QDateTime )";
 158         // seeks for the next meeting on the SAME DAY
 159         int min = -1;
 160         for ( int i = 0; i < iMeetings.count(); i++ )
 161         {
 162                 // if the meeting is in the same room, on the same day but after the specified time
 163                 if ( aRoom->equals( iMeetings.at( i )->room() )
 164                           && iMeetings.at( i )->startsAt().date() == aAfter.date()
 165                           && iMeetings.at( i )->startsAt() > aAfter )
 166                 {
 167                         // if there was not any meeting find yet or the previously found is a later one then the (i)th
 168                         if ( min == -1
 169                                   || iMeetings.at( min )->startsAt() > iMeetings.at( i )->startsAt() )
 170                         {
 171                                 min = i;
 172                         }
 173                 }
 174         }
 175         return min;
 176 }
 177
 178 void Engine::roomStatusInfoNeeded( Room *aRoom )
 179 {
 180         qDebug() << "Engine::roomStatusInfoNeeded( Room * )";
 181         if ( aRoom == 0 )
 182         {
 183                 return;
 184         }
 185
 186         int indexOfCurrentMeeting = indexOfMeetingAt( aRoom, iClock->datetime() );
 187         int indexOfNextMeeting = indexOfMeetingAfter( aRoom, iClock->datetime() );
 188
 189         // if there is no meeting, then status is Free; otherwise Busy
 190         Room::Status status = ( indexOfCurrentMeeting == -1 ) ? Room::FreeStatus : Room::BusyStatus;
 191         // if room is Busy, then check end time, otherwise...
 192         QTime until = ( status == Room::BusyStatus ) ? iMeetings.at( indexOfCurrentMeeting )->endsAt().time() :
 193                           // ...if there is meeting following on the same day then check end time, otherwise end is the of the working day
 194                           (( indexOfNextMeeting != -1 ) ? iMeetings.at( indexOfNextMeeting )->startsAt().time() : Engine::endOfTheDay );
 195
 196         //currently works only for deafult room
 197         if( aRoom->equals( *(defaultRoom() ) ) )
 198                 iWindowManager->roomStatusChanged( aRoom, status, until );
 199 }
 200
 201 void Engine::fetchMeetings()
 202 {
 203         Room *room = defaultRoom();
 204         qDebug() << "Engine::fetchMeetings for " << room->name();
 205         fetchMeetings( iClock->datetime(), iClock->datetime().addDays( 7 ), room );
 206 }
 207
 208 void Engine::fetchMeetingDetails( Meeting *aMeeting )
 209 {
 210         qDebug() << "Engine::fetchMeetingDetails( Meeting* )";
 211         iWindowManager->showProgressBar( tr("Please Wait"), true );
 212         iWindowManager->updateProgressBar( tr("Fetching Meeting Details...") );
 213         connect( iWindowManager,
 214                          SIGNAL( progressBarCancelled() ),
 215                          this,
 216                          SLOT( fetchMeetingDetailsCancelled() )
 217                         );
 218         iCommunication->fetchMeetingDetails( *aMeeting );
 219 }
 220
 221 bool Engine::isMeetingInList( const QList<Meeting*> &aList, const Meeting *aMeeting )
 222 {
 223         qDebug() << "Engine::isMeetingInList( const QList<Meeting*> &, const Meeting * )";
 224         for ( int i = 0; i < aList.count(); i++ )
 225         {
 226                 if ( aMeeting->equals( *(aList.at( i )) ) )
 227                 {
 228                         return true;
 229                 }
 230         }
 231         return false;
 232 }
 233
 234 void Engine::meetingsFetched( const QList<Meeting*> &aMeetings )
 235 {
 236         qDebug() << "Engine::meetingsFetched( const QList<Meeting*> & )";
 237         if( iCommunicationFailed )
 238         {
 239                 iCommunicationFailed = false;
 240                 //iWindowManager->connectionEstablished();
 241         }
 242
 243         // check if there is any new meeting in the list came from the server -> added
 244         for ( int i = 0; i < aMeetings.count(); i++ )
 245         {
 246                 // if the (i)th meeting is not in the local meeting list
 247                 if ( !isMeetingInList( iMeetings, aMeetings.at( i ) ) )
 248                 {
 249                         // add to the local database =)
 250                         Meeting* m = new Meeting( *(aMeetings.at( i )) );
 251                         iMeetings.append( m );
 252                         // and signal the changes
 253                         iWindowManager->insertMeeting( m );
 254                 }
 255         }
 256
 257         // check if there is any meeting NOT in the list came from the server -> deleted
 258         for ( int i = 0; i < iMeetings.count(); i++ )
 259         {
 260                 // if the (i)th meeting is in the local but NOT in the server's meeting list
 261                 if ( !isMeetingInList( aMeetings, iMeetings.at( i ) ) )
 262                 {
 263                         Meeting* m = iMeetings.takeAt( i );
 264                         // signal the changes
 265                         iWindowManager->deleteMeeting( m );
 266                         // delete the meeting from the local list
 267                         delete m;
 268                 }
 269         }
 270
 271         // refresh room status info
 272         roomStatusInfoNeeded( defaultRoom() );
 273 }
 274
 275 void Engine::meetingDetailsFetched( Meeting &aDetailedMeeting )
 276 {
 277         qDebug() << "Engine::meetingDetailsFetched( Meeting & )";
 278         iWindowManager->closeProgressBar();
 279         if( iCommunicationFailed )
 280         {
 281                 iCommunicationFailed = false;
 282                 iWindowManager->connectionEstablished();
 283         }
 284         iWindowManager->showMeetingInfo( &aDetailedMeeting );
 285 }
 286
 287 void Engine::errorHandler( int aCode, const QString &aAddInfo )
 288 {
 289         qDebug() << "Engine::ErrorHandler, aCode: " << aCode;
 290         // inform UI about the problem
 291         if( aCode >= 100 && aCode <= 150 )
 292         {
 293                 qDebug() << "CommunicationManager signaled an error:" << aCode;
 294                 if( !iCommunicationFailed )
 295                 {
 296                         // Only inform window manager when first error appears
 297                         iCommunicationFailed = true;
 298                         //iWindowManager->connectionLost();
 299                 }
 300         }
 301         iWindowManager->closeProgressBar();
 302         iWindowManager->error( ErrorMapper::codeToString( aCode, aAddInfo ) );
 303 }
 304
 305 void Engine::currentRoomChanged( Room *aCurrentRoom )
 306 {
 307         qDebug() << "Engine::currentRoomChanged to " << aCurrentRoom->name();
 308         QDateTime from( iWindowManager->weeklyView()->beginnigOfShownWeek() );
 309         QDateTime to( from.addDays( 8 ) );
 310         fetchMeetings( from, to, aCurrentRoom );
 311 }
 312
 313 void Engine::fetchMeetings( const QDateTime &aFrom, const QDateTime &aUntil, const Room *aIn )
 314 {
 315         qDebug() << "Engine::fetchMeetings( const QDateTime &, const QDateTime &, const Room * )";
 316         iCommunication->fetchMeetings( aFrom, aUntil, *aIn );
 317 }
 318
 319 void Engine::shownWeekChanged( QDate aFrom )
 320 {
 321         qDebug() << "Engine::shownWeekChanged( QDate )";
 322         QDateTime from( aFrom );
 323         QDateTime to( aFrom.addDays( 7 ), QTime( 23, 59 ) );
 324         qDebug() << "Engine::shownWeekChanged " << aFrom.toString( "d.m. h:mm" ) << " to " << to.toString( "d.m. h:mm" );
 325         fetchMeetings( from, to, iWindowManager->weeklyView()->currentRoom() );
 326 }
 327
 328 void Engine::changeModeOrdered( DeviceManager::OperationMode aMode )
 329 {
 330         qDebug() << "Engine::changeModeOrdered( DeviceManager::OperationMode )";
 331         QString message = tr( "You are about to change operation mode to %1." )
 332                                 .arg( iDevice->operationModeToString( aMode ) );
 333
 334         iWindowManager->showPasswordDialog( iConfiguration->adminPassword(), message );
 335 }
 336
 337 void Engine::passwordEntered( PasswordDialog::PasswordStatus aPasswordStatus )
 338 {
 339         qDebug() << "Engine::passwordEntered( PasswordDialog::PasswordStatus )";
 340         iWindowManager->closePasswordDialog();
 341
 342         switch ( aPasswordStatus )
 343         {
 344                 case PasswordDialog::Correct :
 345                 {
 346                         iWindowManager->showProgressBar( "Changing current operation mode." );
 347                         connect( iWindowManager, SIGNAL( progressBarCancelled() ), this, SLOT( progressBarCancelled() ) );
 348                         connect( iDevice, SIGNAL( changingMode( const QString & ) ),
 349                                         iWindowManager, SLOT( updateProgressBar( const QString & ) ) );
 350                         iDevice->changeMode( true );
 351                         break;
 352                 }
 353                 case PasswordDialog::Incorrect :
 354                 {
 355                         iWindowManager->error( tr( "Incorrect password." ) );
 356                         iDevice->changeMode( false );
 357                         break;
 358                 }
 359                 default : //case PasswordDialog::Canceled
 360                 {
 361                         iDevice->changeMode( false );
 362                 }
 363         }
 364 }
 365
 366 void Engine::progressBarCancelled()
 367 {
 368         qDebug() << "Engine::progressBarCancelled()";
 369         //TODO: cancel the on-going event
 370         iWindowManager->closeProgressBar();
 371         iDevice->changeMode( false );
 372 }
 373
 374 void Engine::fetchMeetingDetailsCancelled()
 375 {
 376         iCommunication->cancelFetchMeetingDetails();
 377         iWindowManager->closeProgressBar();
 378 }