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