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