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