User interface update
[qtmeetings] / src / BusinessLogic / Engine.cpp
index 6e677c4..e46ddc9 100644 (file)
 #include "Configuration.h"
 #include "DisplaySettings.h"
 #include "CommunicationManager.h"
-#include "DeviceManager.h"
+// #include "DeviceManager.h"
 #include "Clock.h"
 #include "ErrorMapper.h"
-#include "WeeklyViewWidget.h"
+#include "UIManager.h"
 
 #include <QApplication>
 #include <QTimer>
 #include <QList>
 #include <QtDebug>
 
-QTime Engine::endOfTheDay = QTime( 23, 59, 0, 0 ); // end of the day is 11:59pm
+QTime Engine::endOfTheDay = QTime( 23, 59, 0, 0); // end of the day is 11:59pm
 const int IDLE_TIME_MULTIPLIER = 60000; // Multiplies milliseconds to minutes
 
+// Macro to help deleting objects. This could be global.
+#define QT_DELETE(X) \
+       if ( X != 0 ) \
+       { \
+               delete X; \
+               X = 0; \
+       }
+
+
 Engine::Engine() :
-               iClock( 0 ), iConfiguration( Configuration::instance() ), iCommunication( 0 )
+               iClock( 0 ), iConfiguration( 0 ), iCommunication( 0 ),
+               iWindowManager( 0 ), iUIManager( 0 )
 {
-       // if reading of configuration fails, signal that initialization failed
-       if ( iConfiguration == 0 )
-       {
-               QTimer::singleShot( 0, this, SLOT( closeApplication() ) );
-               return;
-       }
-               
-       //initialize window manager
-       iWindowManager = new WindowManager( iConfiguration );
-       connect( iWindowManager, SIGNAL( roomStatusInfoNeeded( Room * ) ), this, SLOT( roomStatusInfoNeeded( Room * ) ) );
-       connect( iWindowManager, SIGNAL( observedEventDetected() ), this, SLOT( observedEventDetected() ) );
-       connect( iWindowManager, SIGNAL( meetingActivated( Meeting * ) ), this, SLOT( fetchMeetingDetails( Meeting * ) ) );
-       connect( iWindowManager, SIGNAL( currentRoomChanged( Room * ) ), this, SLOT( currentRoomChanged( Room * ) ) );
-       connect( iWindowManager, SIGNAL( shownWeekChanged( QDate ) ), this, SLOT( shownWeekChanged( QDate ) ) );
+       qDebug() << "Engine::Engine()";
+       iCommunicationFailed = false;
+       iCurrentWeekFetched = false;
+       
+       initConfiguration();
+       initDevice();
+       initCommunication();
+       initUserInterface();
        
-       // initialize communication
-       iCommunication = new CommunicationManager( *(iConfiguration->connectionSettings()) );
-       connect( iCommunication, SIGNAL( error( int, CommunicationManager::CommunicationType  ) ),
-                       this, SLOT( errorHandler( int ) ) );
-       connect( iCommunication, SIGNAL( meetingsFetched( const QList<Meeting*>& ) ),
-                       this, SLOT( meetingsFetched( const QList<Meeting*>& ) ) );
-       connect( iCommunication, SIGNAL( meetingDetailsFetched( Meeting& ) ),
-                       this, SLOT( meetingDetailsFetched( Meeting& ) ) );
-
        //initialize idle time counter
        iIdleTimeCounter = new QTimer();
-       iIdleTimeCounter->setSingleShot( true );
-       iIdleTimeCounter->setInterval( IDLE_TIME_MULTIPLIER * iConfiguration->displaySettings()->screensaver() );
+       iIdleTimeCounter->setSingleShot( true);
+       iIdleTimeCounter->setInterval(IDLE_TIME_MULTIPLIER * iConfiguration->displaySettings()->screensaver() );
        iIdleTimeCounter->start();
-       connect( iIdleTimeCounter, SIGNAL( timeout() ), iWindowManager, SLOT( showRoomStatus() ) );
 
        // create application clock
        iClock = new Clock;
-       connect( iClock, SIGNAL( tick( QDateTime ) ), this, SLOT( checkStatusOfAllRooms() ) );
-       connect( iClock, SIGNAL( tick( QDateTime ) ), iWindowManager, SLOT( distributeDateTimeInfo( QDateTime ) ) );
+       connect( iClock, SIGNAL( tick( QDateTime ) ), this, SLOT( tick( QDateTime )/*checkStatusOfAllRooms()*/ ) );
+       // connect( iClock, SIGNAL( tick( QDateTime ) ), iWindowManager, SLOT( distributeDateTimeInfo( QDateTime ) ) );
 
+       // Create auto refresh timer
        iAutoRefresh = new QTimer;
-       iAutoRefresh->setInterval( iConfiguration->connectionSettings()->refreshInterval() * 1000 );
+
+       iAutoRefresh->setInterval(Configuration::instance()->getRefreshinterval() * 1000);
+
        iAutoRefresh->start();
        connect( iAutoRefresh, SIGNAL( timeout() ), iAutoRefresh, SLOT( start() ) );
-       connect( iAutoRefresh, SIGNAL( timeout() ), this, SLOT( fetchMeetings() ) );
-
-       // create device manager
-       iDevice = new DeviceManager( iConfiguration->startupSettings() );
-       connect( iDevice, SIGNAL( error( int, const QString& ) ), this, SLOT( errorHandler( int, const QString& ) ) );  
-       connect( iDevice, SIGNAL( changeModeOrdered( DeviceManager::OperationMode ) ), 
-                       this, SLOT( changeModeOrdered( DeviceManager::OperationMode ) ) );
-       iDevice->initDeviceManager();
+       connect( iAutoRefresh, SIGNAL( timeout() ), this, SLOT( updateRoomInfo() ) );
+       // connect( iAutoRefresh, SIGNAL( timeout() ), this, SLOT( fetchMeetings() ) );
        
        if( iDevice->currentOperationMode() == DeviceManager::KioskMode )
-               iWindowManager->fullScreen();
+       {
+               iWindowManager->setFullscreen();
+       }
 
-       QTimer::singleShot( 0, this, SLOT( fetchMeetings() ) );
+       connectSignals();
+       connect( Configuration::instance(), SIGNAL( configurationChanged() ), this, SLOT( configurationChanged() ) );
+       // QTimer::singleShot( 0, this, SLOT( fetchMeetings() ) );
 
        // TODO: continue implementation
 }
 
 Engine::~Engine()
 {
+       qDebug() << "Engine::~Engine()";
        while ( !iMeetings.isEmpty() )
                delete iMeetings.takeFirst();
-       iIdleTimeCounter->stop();
-       delete iIdleTimeCounter;
-       iIdleTimeCounter = 0;
-       delete iWindowManager;
-       iWindowManager = 0;
-       delete iClock;
-       iClock = 0;
-       delete iDevice;
-       iDevice = 0;
+       
+       if ( iIdleTimeCounter != 0 )
+       {
+               iIdleTimeCounter->stop();
+               delete iIdleTimeCounter;
+               iIdleTimeCounter = 0;
+       }
+       QT_DELETE( iClock );
+       QT_DELETE( iDevice );
+
+       QT_DELETE( iUIManager );
+       QT_DELETE( iWindowManager );
 }
 
 void Engine::closeApplication()
 {
        qDebug() << "Engine::closeApplication()";
        // closes application after 1 second
-       QTimer::singleShot( 1000, QApplication::instance(), SLOT( quit() ) );
-}
-
-void Engine::observedEventDetected()
-{
-       iWindowManager->showWeeklyView();
-       // prepare to restart idle counter
-       if ( iIdleTimeCounter->isActive() )
-       {
-               iIdleTimeCounter->stop();
-       }
-       // (re)start idle counter
-       iIdleTimeCounter->start();
+       QTimer::singleShot( 1000, QApplication::instance(), SLOT( quit() ));
 }
 
 Room* Engine::defaultRoom()
 {
+       qDebug() << "Engine::defaultRoom()";
        return iConfiguration->defaultRoom();
 }
 
 void Engine::checkStatusOfAllRooms()
 {
+       // TODO: Check if date has changed
        // iterate trough on the rooms
-       for ( int i = 0; i < iConfiguration->rooms().count(); i++ )
+       for (int i = 0; i < iConfiguration->rooms().count(); i++)
        {
                // and check the status
-               roomStatusInfoNeeded( iConfiguration->rooms().at( i ) );
+               roomStatusInfoNeeded( iConfiguration->rooms().at(i) );
        }
 }
 
-int Engine::indexOfMeetingAt( Room *aRoom, QDateTime aAt )
+int Engine::indexOfMeetingAt(Room *aRoom, QDateTime aAt)
 {
+//     qDebug() << "Engine::indexOfMeetingAt( Room *, QDateTime )";
        for ( int i = 0; i < iMeetings.count(); i++ )
        {
                // exchange server ensures that there is only one meeting in a room at a specified time
-               if ( aRoom->equals( iMeetings.at( i )->room() )
-                         && iMeetings.at( i )->startsAt() <= aAt
-                         && iMeetings.at( i )->endsAt() >= aAt )
+               if (aRoom->equals(iMeetings.at( i )->room() ) && iMeetings.at( i )->startsAt() <= aAt && iMeetings.at( i )->endsAt() >= aAt)
                {
                        return i;
                }
@@ -142,20 +130,18 @@ int Engine::indexOfMeetingAt( Room *aRoom, QDateTime aAt )
        return -1;
 }
 
-int Engine::indexOfMeetingAfter( Room *aRoom, QDateTime aAfter )
+int Engine::indexOfMeetingAfter(Room *aRoom, QDateTime aAfter)
 {
+//     qDebug() << "Engine::indexOfMeetingAfter( Room *, QDateTime )";
        // seeks for the next meeting on the SAME DAY
        int min = -1;
-       for ( int i = 0; i < iMeetings.count(); i++ )
+       for (int i = 0; i < iMeetings.count(); i++)
        {
                // if the meeting is in the same room, on the same day but after the specified time
-               if ( aRoom->equals( iMeetings.at( i )->room() )
-                         && iMeetings.at( i )->startsAt().date() == aAfter.date()
-                         && iMeetings.at( i )->startsAt() > aAfter )
+               if (aRoom->equals(iMeetings.at( i )->room() ) && iMeetings.at( i )->startsAt().date() == aAfter.date() && iMeetings.at( i )->startsAt() > aAfter)
                {
                        // if there was not any meeting find yet or the previously found is a later one then the (i)th
-                       if ( min == -1
-                                 || iMeetings.at( min )->startsAt() > iMeetings.at( i )->startsAt() )
+                       if (min == -1 || iMeetings.at( min )->startsAt() > iMeetings.at( i )->startsAt() )
                        {
                                min = i;
                        }
@@ -164,126 +150,257 @@ int Engine::indexOfMeetingAfter( Room *aRoom, QDateTime aAfter )
        return min;
 }
 
-void Engine::roomStatusInfoNeeded( Room *aRoom )
+void Engine::roomStatusInfoNeeded(Room *aRoom)
 {
+//     qDebug() << "Engine::roomStatusInfoNeeded( Room * )";
        if ( aRoom == 0 )
        {
                return;
        }
 
-       int indexOfCurrentMeeting = indexOfMeetingAt( aRoom, iClock->datetime() );
-       int indexOfNextMeeting = indexOfMeetingAfter( aRoom, iClock->datetime() );
+       int indexOfCurrentMeeting = indexOfMeetingAt(aRoom, iClock->datetime() );
+       int indexOfNextMeeting = indexOfMeetingAfter(aRoom, iClock->datetime() );
 
        // if there is no meeting, then status is Free; otherwise Busy
-       Room::Status status = ( indexOfCurrentMeeting == -1 ) ? Room::FreeStatus : Room::BusyStatus;
+       Room::Status status = (indexOfCurrentMeeting == -1 ) ? Room::FreeStatus : Room::BusyStatus;
        // if room is Busy, then check end time, otherwise...
-       QTime until = ( status == Room::BusyStatus ) ? iMeetings.at( indexOfCurrentMeeting )->endsAt().time() :
-                         // ...if there is meeting following on the same day then check end time, otherwise end is the of the working day
-                         (( indexOfNextMeeting != -1 ) ? iMeetings.at( indexOfNextMeeting )->startsAt().time() : Engine::endOfTheDay );
+       QTime until = (status == Room::BusyStatus ) ? iMeetings.at( indexOfCurrentMeeting )->endsAt().time() :
+       // ...if there is meeting following on the same day then check end time, otherwise end is the of the working day
+       ( ( indexOfNextMeeting != -1 ) ? iMeetings.at( indexOfNextMeeting )->startsAt().time() : Engine::endOfTheDay );
 
-       //currently works only for deafult room
-       if( aRoom->equals( *(defaultRoom() ) ) )
-               iWindowManager->roomStatusChanged( aRoom, status, until );
+       //currently works only for default room
+       if ( aRoom->equals( *(iCurrentRoom) ) )
+       {
+               emit roomStatusChanged( status, until );
+       }
 }
 
-void Engine::fetchMeetings()
+void Engine::fetchMeetingDetails( Meeting *aMeeting )
 {
-       Room *room = defaultRoom();
-       qDebug() << "Engine::fetchMeetings for " << room->name();
-       fetchMeetings( iClock->datetime(), iClock->datetime().addDays( 7 ), room );
+       qDebug() << "Engine::fetchMeetingDetails( Meeting* )";
+       iCommunication->fetchMeetingDetails( *aMeeting );
 }
 
-void Engine::fetchMeetingDetails( Meeting *aMeeting )
+void Engine::meetingsFetched( const QList<Meeting*> &aMeetings )
 {
-       iCommunication->fetchMeetingDetails( *aMeeting );
+       qDebug() << "Engine::meetingsFetched( const QList<Meeting*> & )";
+       // TODO: should check if this week's meetings were fetched
+       if( iCommunicationFailed || !iCurrentWeekFetched )
+       {
+               iCurrentWeekFetched = true;
+               iCommunicationFailed = false;
+               iUIManager->connectionEstablished();
+       }
+
+       for ( int i = 0; i < iMeetings.count(); ++i ) 
+       {
+               // TODO: Check if these are current week's meetings and do not overwrite those
+               Meeting* m = iMeetings.takeAt( i );
+               delete m;
+       }
+       iMeetings.clear();
+       for ( int i = 0; i < aMeetings.count(); ++i ) {
+               Meeting* m = new Meeting( *( aMeetings.at( i ) ) );
+               iMeetings.append( m );
+       }
+
+       // refresh room status info
+       roomStatusInfoNeeded( iCurrentRoom /*defaultRoom()*/ );
+}
+
+void Engine::errorHandler( int aCode, const QString &aAddInfo )
+{      
+       if( aCode >= 100 && aCode < 150 )
+       {
+               iCommunicationFailed = true;
+
+               if ( iUIManager != 0 )
+                       {
+                               iUIManager->connectionLost();
+                       }
+       }
+       if ( iWindowManager != 0 )
+       {
+               iWindowManager->error( ErrorMapper::codeToString( aCode, aAddInfo ) );
+       }
+}
+
+void Engine::fetchMeetings( const int aWeek, const int aYear, const Room *aIn )
+{
+       qDebug()
+                       << "Engine::fetchMeetings( const int aWeek, const int aYear, const Room * )";
+       iCommunication->fetchMeetings(aWeek, aYear, *aIn);
+}
+
+void Engine::cancelFetchMeetingDetails()
+{
+       iCommunication->cancelFetchMeetingDetails();
+}
+
+void Engine::shownWeekChanged( QDate aFrom )
+{
+       qDebug() << "[Engine::shownWeekChanged] <Invoked>";
+       iCommunication->fetchMeetings( aFrom.weekNumber(), aFrom.year(), *iCurrentRoom/*defaultRoom()*/ );
+}
+
+void Engine::changeDeviceMode()
+{
+       connect( iDevice, SIGNAL( changeModeFailed() ), this, SLOT( changeModeFailed() ) );
+       iAutoRefresh->stop(); // Stop the meeting update
+       iDevice->changeMode();
+}
+
+void Engine::changeModeFailed()
+{
+       qDebug() << "Engine::progressBarCancelled()";
+       iAutoRefresh->start(); //we start the metting updating
+}
+
+void Engine::initUserInterface()
+{
+       qDebug() << "[Engine::initUserInterface] <Invoked>";
+       
+       // Initialize the window manager and connect what ever signals can be connected
+       iWindowManager = new WindowManager;
+       // Create the UIManager which internally handles most of the UI actions
+       iUIManager = new UIManager( this, iWindowManager );
+       
+       connect( iWindowManager, SIGNAL( eventDetected() ), this, SLOT( handleViewEvent() ) );
+       connect( iWindowManager, SIGNAL( previousViewRestored() ), iUIManager, SLOT( previousViewRestored() ) );
+       connect( iWindowManager, SIGNAL( dialogActivated() ), this, SLOT( dialogActivated() ) );
+       connect( iWindowManager, SIGNAL( dialogDeactivated() ), this, SLOT( dialogDeactivated() ) );
+       
+       // Show the UI
+       iWindowManager->setWindowState( Qt::WindowMaximized );
+       iWindowManager->show();
+       iUIManager->showMainView();
+       
+       // This triggers the meeting fetching
+       iUIManager->currentRoomChanged( this->iCurrentRoom );
+       
+       qDebug() << "[Engine::initUserInterface] <Finished>";
 }
 
-bool Engine::isMeetingInList( const QList<Meeting*> &aList, const Meeting *aMeeting )
+void Engine::handleViewEvent()
 {
-       for ( int i = 0; i < aList.count(); i++ )
+       if ( iIdleTimeCounter != 0 && iIdleTimeCounter->isActive())
        {
-               if ( aMeeting->equals( *(aList.at( i )) ) )
-               {
-                       return true;
-               }
+               // Restart the idle time counter when view event is received
+               iIdleTimeCounter->stop();
+               iIdleTimeCounter->start();
        }
-       return false;
 }
 
-void Engine::meetingsFetched( const QList<Meeting*> &aMeetings )
+void Engine::initConfiguration()
 {
-       // check if there is any new meeting in the list came from the server -> added
-       for ( int i = 0; i < aMeetings.count(); i++ )
+       iConfiguration = Configuration::instance();
+       if ( iConfiguration == 0 )
        {
-               // if the (i)th meeting is not in the local meeting list
-               if ( !isMeetingInList( iMeetings, aMeetings.at( i ) ) )
-               {
-                       // add to the local database =)
-                       Meeting* m = new Meeting( *(aMeetings.at( i )) );
-                       iMeetings.append( m );
-                       // and signal the changes
-                       iWindowManager->insertMeeting( m );
-               }
+               QTimer::singleShot( 0, this, SLOT( closeApplication() ) );
        }
+       iCurrentRoom = iConfiguration->defaultRoom();
+}
 
-       // check if there is any meeting NOT in the list came from the server -> deleted
-       for ( int i = 0; i < iMeetings.count(); i++ )
+void Engine::connectSignals()
+{
+       // Connect engine objects signals to UIManager
+       connect( iClock, SIGNAL( tick( QDateTime ) ), iUIManager, SLOT( updateTime( QDateTime ) ) );
+       connect( iIdleTimeCounter, SIGNAL( timeout() ) , iUIManager, SLOT( roomStatusIndicatorRequested() ) );
+       
+       iUIManager->connectDeviceManager( iDevice );
+       iUIManager->connectCommunicationManager( iCommunication );
+}
+
+void Engine::initCommunication()
+{
+       // initialize communication
+       iCommunication = new CommunicationManager(/* *(iConfiguration->connectionSettings()) */);
+       connect( iCommunication, SIGNAL( error( int, CommunicationManager::CommunicationType  ) ),
+                       this, SLOT( errorHandler( int ) ) );
+       connect( iCommunication, SIGNAL( meetingsFetched( const QList<Meeting*>& ) ),
+                       this, SLOT( meetingsFetched( const QList<Meeting*>& ) ) );
+}
+
+void Engine::initDevice()
+{
+       // create device manager
+       iDevice = new DeviceManager( iConfiguration->startupSettings() );
+       connect( iDevice, SIGNAL( error( int, const QString& ) ), this, SLOT( errorHandler( int, const QString& ) ) );  
+       iDevice->initDeviceManager();
+}
+
+void Engine::dialogActivated()
+{
+       if ( iIdleTimeCounter != 0 )
        {
-               // if the (i)th meeting is in the local but NOT in the server's meeting list
-               if ( !isMeetingInList( aMeetings, iMeetings.at( i ) ) )
-               {
-                       Meeting* m = iMeetings.takeAt( i );
-                       // signal the changes
-                       iWindowManager->deleteMeeting( m );
-                       // delete the meeting from the local list
-                       delete m;
-               }
+               iIdleTimeCounter->stop();
        }
+}
 
-       // refresh room status info
-       roomStatusInfoNeeded( defaultRoom() );
+void Engine::dialogDeactivated()
+{
+       if ( iIdleTimeCounter != 0 )
+       {
+               iIdleTimeCounter->start();
+       }
 }
 
-void Engine::meetingDetailsFetched( Meeting &aDetailedMeeting )
+void Engine::previousViewRestored()
 {
-       iWindowManager->showMeetingInfo( &aDetailedMeeting );
+       if ( iIdleTimeCounter != 0 )
+       {
+               iIdleTimeCounter->start();
+       }
 }
 
-void Engine::errorHandler( int aCode, const QString &aAddInfo )
+void Engine::stopIdleTimeCounter()
 {
-       qDebug() << "Engine::ErrorHandler, aCode: " << aCode;
-       // inform UI about the problem
-       if( aCode >= 100 && aCode <= 110 )
-               qDebug() << "CommunicationManager signaled an error:" << aCode;
-       iWindowManager->error( ErrorMapper::codeToString( aCode, aAddInfo ) );
+       if ( iIdleTimeCounter != 0 )
+       {
+               iIdleTimeCounter->stop();
+       }
 }
 
-void Engine::currentRoomChanged( Room *aCurrentRoom )
+void Engine::startIdleTimeCounter()
 {
-       qDebug() << "Engine::currentRoomChanged to " << aCurrentRoom->name();
-       QDateTime from( iWindowManager->weeklyView()->beginnigOfShownWeek() );
-       QDateTime to( from.addDays( 8 ) );
-       fetchMeetings( from, to, aCurrentRoom );
+       if ( iIdleTimeCounter != 0 )
+       {
+               iIdleTimeCounter->start();
+       }
 }
 
-void Engine::fetchMeetings( const QDateTime &aFrom, const QDateTime &aUntil, const Room *aIn )
+void Engine::currentRoomChanged(Room *aRoom)
 {
-       qDebug() << "Engine::fetchMeetings";
-       iCommunication->fetchMeetings( aFrom, aUntil, *aIn );
+       qDebug() << "[Engine::currentRoomChanged] <invoked>";
+       iCurrentRoom = aRoom;
+       roomStatusInfoNeeded( iCurrentRoom );
 }
 
-void Engine::shownWeekChanged( QDate aFrom )
+void Engine::tick( QDateTime aCurrentDateTime )
 {
-       QDateTime from( aFrom );
-       QDateTime to( aFrom.addDays( 7 ), QTime( 23, 59 ) );
-       qDebug() << "Engine::shownWeekChanged " << aFrom.toString( "d.m. h:mm" ) << " to " << to.toString( "d.m. h:mm" );
-       fetchMeetings( from, to, iWindowManager->weeklyView()->currentRoom() );
+       // Called once every second
+       checkStatusOfAllRooms();
+       if( aCurrentDateTime.date() !=  iCurrentDate)
+       {
+               // Check if week has changed and fetch meetings for this week
+               if( aCurrentDateTime.date().weekNumber() != iCurrentDate.weekNumber()
+                       || aCurrentDateTime.date().year() != iCurrentDate.year() )
+               {
+                       qDebug() << "[Engine::tick] detected week change, fetching meetings";
+                       fetchMeetings( aCurrentDateTime.date().weekNumber(), aCurrentDateTime.date().year(), iCurrentRoom );
+               }
+       }
+       iCurrentDate = aCurrentDateTime.date();
+}
+
+
+void Engine::updateRoomInfo()
+{
+       qDebug() << "ENGINE::: updateMeetings";
+       roomStatusInfoNeeded(iCurrentRoom);
 }
 
-void Engine::changeModeOrdered( DeviceManager::OperationMode aMode )
+void Engine::configurationChanged()
 {
-       QString message = tr( "You are about to change operation mode to %1." )
-                               .arg( iDevice->operationModeToString( aMode ) );
-       
-       iWindowManager->showPasswordDialog( iConfiguration->adminPassword(), message );
+       iAutoRefresh->setInterval(Configuration::instance()->getRefreshinterval() * 1000);
 }