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