vcs.maemo.org Git - situare/blob - src/engine/engine.cpp

   1  /*
   2     Situare - A location system for Facebook
   3     Copyright (C) 2010  Ixonos Plc. Authors:
   4
   5         Kaj Wallin - kaj.wallin@ixonos.com
   6         Henri Lampela - henri.lampela@ixonos.com
   7         Jussi Laitinen - jussi.laitinen@ixonos.com
   8         Sami Rämö - sami.ramo@ixonos.com
   9
  10     Situare is free software; you can redistribute it and/or
  11     modify it under the terms of the GNU General Public License
  12     version 2 as published by the Free Software Foundation.
  13
  14     Situare is distributed in the hope that it will be useful,
  15     but WITHOUT ANY WARRANTY; without even the implied warranty of
  16     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17     GNU General Public License for more details.
  18
  19     You should have received a copy of the GNU General Public License
  20     along with Situare; if not, write to the Free Software
  21     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
  22     USA.
  23  */
  24
  25 #include <cmath>
  26
  27 #include <QMessageBox>
  28 #include <QNetworkReply>
  29
  30 #include "application.h"
  31 #include "common.h"
  32 #include "contactmanager.h"
  33 #include "../error.h"
  34 #include "facebookservice/facebookauthentication.h"
  35 #include "gps/gpsposition.h"
  36 #include "map/mapengine.h"
  37 #include "routing/geocodingservice.h"
  38 #include "routing/routingservice.h"
  39 #include "mce.h"
  40 #include "network/networkaccessmanager.h"
  41 #include "situareservice/situareservice.h"
  42 #include "ui/mainwindow.h"
  43 #include "qmlui/geomap.h"
  44 #include "qmlui/rotation.h"
  45 #include "qmlui/loginlogic.h"
  46 #include <qdeclarative.h>
  47 #include <QDeclarativeView>
  48 #include <QDeclarativeContext>
  49 #include <QApplication>
  50 #include <QDesktopWidget>
  51 #include <QDeclarativeEngine>
  52 #include "engine.h"
  53 #include "routing/routemodel.h"
  54 #include "user/friendmodel.h"
  55
  56 const QString SETTINGS_GPS_ENABLED = "GPS_ENABLED"; ///< GPS setting
  57 const QString SETTINGS_AUTO_CENTERING_ENABLED = "AUTO_CENTERING_ENABLED";///< Auto centering setting
  58 const int DEFAULT_ZOOM_LEVEL_WHEN_GPS_IS_AVAILABLE = 12;  ///< Default zoom level when GPS available
  59 const qreal USER_MOVEMENT_MINIMUM_LONGITUDE_DIFFERENCE = 0.003;///< Min value for user move latitude
  60 const qreal USER_MOVEMENT_MINIMUM_LATITUDE_DIFFERENCE = 0.001;///< Min value for user move longitude
  61 const int MIN_UPDATE_INTERVAL_MSECS = 5*60*1000;
  62
  63 class SituareEnginePrivate
  64 {
  65     Q_DECLARE_PUBLIC(SituareEngine)
  66     SituareEngine* q_ptr;
  67
  68 public:
  69     FriendModel friendModel;
  70     RouteModel routeModel;
  71
  72     QDeclarativeView* ui;
  73
  74     int progressIndicatorCount;
  75
  76     SituareEnginePrivate(SituareEngine* parent)
  77         : q_ptr(parent), routeModel(0), ui(0), progressIndicatorCount(0)
  78     {}
  79
  80     void toggleProgressIndicator(bool value)
  81     {
  82 #ifdef QML_UI
  83         qDebug() << __PRETTY_FUNCTION__;
  84
  85     #ifdef Q_WS_MAEMO_5
  86         if(value) {
  87             progressIndicatorCount++;
  88             ui->setAttribute(Qt::WA_Maemo5ShowProgressIndicator, true);
  89         } else {
  90             if(progressIndicatorCount > 0)
  91                 progressIndicatorCount--;
  92
  93             if(progressIndicatorCount == 0)
  94                 ui->setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
  95         }
  96     #else
  97         Q_UNUSED(value);
  98     #endif // Q_WS_MAEMO_5
  99 #else
 100         Q_Q(SituareEngine);
 101         q->m_ui->toggleProgressIndicator(value);
 102 #endif
 103     }
 104 };
 105
 106 SituareEngine::SituareEngine()
 107     : d_ptr(new SituareEnginePrivate(this)),
 108       m_autoCenteringEnabled(false),
 109       m_automaticUpdateFirstStart(true),
 110       m_automaticUpdateRequest(false),
 111       m_userMoved(false),
 112       m_automaticUpdateIntervalTimer(0),
 113       m_lastUpdatedGPSPosition(GeoCoordinate())
 114 {
 115     qDebug() << __PRETTY_FUNCTION__;
 116
 117     m_ui = new MainWindow;
 118     m_ui->updateItemVisibility(false);
 119
 120     Application *application = static_cast<Application *>(qApp);
 121     application->registerWindow(m_ui->winId());
 122
 123     connect(application, SIGNAL(topmostWindowChanged(bool)),
 124             this, SLOT(topmostWindowChanged(bool)));
 125
 126     m_networkAccessManager = new NetworkAccessManager(this);
 127
 128     // build MapEngine
 129     m_mapEngine = new MapEngine(this);
 130     m_ui->setMapViewScene(m_mapEngine->scene());
 131
 132     // build GPS
 133     m_gps = new GPSPosition(this);
 134
 135     // build SituareService
 136     m_situareService = new SituareService(this);
 137
 138     // build FacebookAuthenticator
 139     m_facebookAuthenticator = new FacebookAuthentication(m_ui, this);
 140
 141     // build routing service
 142     m_routingService = new RoutingService(this); // create this when needed, not in constructor!
 143
 144     // build geocoding service
 145     m_geocodingService = new GeocodingService(this);
 146
 147     // connect signals
 148     signalsFromMapEngine();
 149     signalsFromGeocodingService();
 150     signalsFromGPS();
 151     signalsFromRoutingService();
 152     signalsFromSituareService();
 153     signalsFromMainWindow();
 154     signalsFromFacebookAuthenticator();
 155
 156     connect(this, SIGNAL(userLocationReady(User*)),
 157             m_ui, SIGNAL(userLocationReady(User*)));
 158
 159     connect(this, SIGNAL(friendsLocationsReady(QList<User*>&)),
 160             m_ui, SIGNAL(friendsLocationsReady(QList<User*>&)));
 161
 162     connect(this, SIGNAL(userLocationReady(User*)),
 163             m_mapEngine, SLOT(receiveOwnLocation(User*)));
 164
 165     connect(this, SIGNAL(friendsLocationsReady(QList<User*>&)),
 166             m_mapEngine, SIGNAL(friendsLocationsReady(QList<User*>&)));
 167
 168     connect(this, SIGNAL(friendImageReady(User*)),
 169             m_ui, SIGNAL(friendImageReady(User*)));
 170
 171     connect(this, SIGNAL(friendImageReady(User*)),
 172             m_mapEngine, SIGNAL(friendImageReady(User*)));
 173
 174     m_automaticUpdateIntervalTimer = new QTimer(this);
 175     connect(m_automaticUpdateIntervalTimer, SIGNAL(timeout()),
 176             this, SLOT(startAutomaticUpdate()));
 177
 178     // signals connected, now it's time to show the main window
 179     // but init the MapEngine before so starting location is set
 180     m_mapEngine->init();
 181
 182 #ifdef QML_UI
 183     qmlRegisterType<GeoMap>("MapPlugin", 1, 0, "GeoMap");
 184
 185     Q_D(SituareEngine);
 186
 187     d->ui = new QDeclarativeView(QApplication::desktop());
 188 #ifdef Q_WS_MAEMO_5
 189 //    d->ui->setAttribute(Qt::WA_Maemo5AutoOrientation, true);
 190 #endif
 191     Rotation *rotation = new Rotation();
 192     d->ui->rootContext()->setContextProperty("deviceRotation", static_cast<QObject *>(rotation));
 193     d->ui->rootContext()->setContextProperty("facebookAuthenticator", m_facebookAuthenticator);
 194     d->ui->rootContext()->setContextProperty("routingModel", &d->routeModel);
 195     d->ui->rootContext()->setContextProperty("friendModel", &d->friendModel);
 196     d->ui->rootContext()->setContextProperty("engine", this);
 197
 198     d->ui->rootContext()->setContextProperty("routingModel", &d->routeModel);
 199     d->ui->rootContext()->setContextProperty("engine", this);
 200
 201     d->ui->setSource(QUrl("qrc:/Main.qml"));
 202     d->ui->setResizeMode(QDeclarativeView::SizeRootObjectToView);
 203     d->ui->show();
 204
 205     connect(d->ui->engine()->networkAccessManager(),
 206             SIGNAL(sslErrors(QNetworkReply*, QList<QSslError>)),
 207             m_facebookAuthenticator, SLOT(sslErrors(QNetworkReply*, QList<QSslError>)));
 208 #else
 209     m_ui->show();
 210 #endif
 211
 212     m_gps->setMode(GPSPosition::Default);
 213     initializeGpsAndAutocentering();
 214
 215     m_mce = new MCE(this);
 216     connect(m_mce, SIGNAL(displayOff(bool)), this, SLOT(setPowerSaving(bool)));
 217
 218     m_contactManager = new ContactManager(this);
 219     m_contactManager->requestContactGuids();
 220
 221     m_facebookAuthenticator->login();
 222 }
 223
 224 SituareEngine::~SituareEngine()
 225 {
 226     qDebug() << __PRETTY_FUNCTION__;
 227
 228     delete m_ui;
 229
 230     QSettings settings(SETTINGS_ORGANIZATION_NAME, SETTINGS_APPLICATION_NAME);
 231     settings.setValue(SETTINGS_GPS_ENABLED, m_gps->isRunning());
 232     settings.setValue(SETTINGS_AUTO_CENTERING_ENABLED, m_autoCenteringEnabled);
 233 }
 234
 235 void SituareEngine::changeAutoCenteringSetting(bool enabled)
 236 {
 237     qDebug() << __PRETTY_FUNCTION__ << enabled;
 238
 239     m_autoCenteringEnabled = enabled;
 240     setAutoCentering(enabled);
 241 }
 242
 243 void SituareEngine::disableAutoCentering()
 244 {
 245     qDebug() << __PRETTY_FUNCTION__;
 246
 247     changeAutoCenteringSetting(false);
 248 }
 249
 250 void SituareEngine::draggingModeTriggered()
 251 {
 252     qDebug() << __PRETTY_FUNCTION__;
 253
 254     if (m_mce)
 255         m_mce->vibrationFeedback();
 256 }
 257
 258 void SituareEngine::enableAutomaticLocationUpdate(bool enabled, int updateIntervalMsecs)
 259 {
 260     qDebug() << __PRETTY_FUNCTION__;
 261
 262     //Show automatic update confirmation dialog
 263     if (m_automaticUpdateFirstStart && m_gps->isRunning() && enabled) {
 264         m_ui->showEnableAutomaticUpdateLocationDialog(
 265                 tr("Do you want to enable automatic location update with %1 min update interval?")
 266                 .arg(updateIntervalMsecs/1000/60));
 267         m_automaticUpdateFirstStart = false;
 268     } else {
 269         if (enabled && m_gps->isRunning()) {
 270             m_ui->buildInformationBox(tr("Automatic location update enabled"));
 271             if (updateIntervalMsecs < MIN_UPDATE_INTERVAL_MSECS)
 272                 m_automaticUpdateIntervalTimer->setInterval(MIN_UPDATE_INTERVAL_MSECS);
 273             else
 274                 m_automaticUpdateIntervalTimer->setInterval(updateIntervalMsecs);
 275
 276             connect(m_gps, SIGNAL(position(GeoCoordinate, qreal)),
 277                     this, SLOT(requestAutomaticUpdateIfMoved(GeoCoordinate)));
 278
 279             m_automaticUpdateIntervalTimer->start();
 280
 281         } else {
 282             disconnect(m_gps, SIGNAL(position(GeoCoordinate, qreal)),
 283                     this, SLOT(requestAutomaticUpdateIfMoved(GeoCoordinate)));
 284
 285             m_automaticUpdateIntervalTimer->stop();
 286         }
 287     }
 288 }
 289
 290 void SituareEngine::error(const int context, const int error)
 291 {
 292     Q_D(SituareEngine);
 293     qDebug() << __PRETTY_FUNCTION__;
 294     switch(error)
 295     {
 296     case SituareError::ERROR_GENERAL:
 297         if(context == ErrorContext::SITUARE) {
 298             d->toggleProgressIndicator(false);
 299             m_ui->buildInformationBox(tr("Unknown server error"), true);
 300         }
 301         break;
 302     case 1: //errors: SituareError::ERROR_MISSING_ARGUMENT and QNetworkReply::ConnectionRefusedError
 303         d->toggleProgressIndicator(false);
 304         if(context == ErrorContext::SITUARE) {
 305             m_ui->buildInformationBox(tr("Missing parameter from request"), true);
 306         } else if(context == ErrorContext::NETWORK) {
 307             m_ui->buildInformationBox(tr("Connection refused by the server"), true);
 308         }
 309         break;
 310     case QNetworkReply::RemoteHostClosedError:
 311         if(context == ErrorContext::NETWORK) {
 312             d->toggleProgressIndicator(false);
 313             m_ui->buildInformationBox(tr("Connection closed by the server"), true);
 314         }
 315         break;
 316     case QNetworkReply::HostNotFoundError:
 317         if(context == ErrorContext::NETWORK) {
 318             d->toggleProgressIndicator(false);
 319             m_ui->buildInformationBox(tr("Remote server not found"), true);
 320         }
 321         break;
 322     case QNetworkReply::TimeoutError:
 323         if(context == ErrorContext::NETWORK) {
 324             d->toggleProgressIndicator(false);
 325             m_ui->buildInformationBox(tr("Connection timed out"), true);
 326         }
 327         break;
 328     case QNetworkReply::UnknownNetworkError:
 329         if(context == ErrorContext::NETWORK) {
 330             d->toggleProgressIndicator(false);
 331             m_ui->buildInformationBox(tr("No network connection"), true);
 332         }
 333         break;
 334     case SituareError::SESSION_EXPIRED:
 335         m_ui->buildInformationBox(tr("Session expired. Please login again"), true);
 336         m_facebookAuthenticator->logOut();
 337         m_facebookAuthenticator->login();
 338         break;
 339     case SituareError::UPDATE_FAILED:
 340         d->toggleProgressIndicator(false);
 341         m_ui->buildInformationBox(tr("Update failed, please try again"), true);
 342         break;
 343     case SituareError::DATA_RETRIEVAL_FAILED:
 344         d->toggleProgressIndicator(false);
 345         m_ui->buildInformationBox(tr("Data retrieval failed, please try again"), true);
 346         break;
 347     case SituareError::ADDRESS_RETRIEVAL_FAILED:
 348         d->toggleProgressIndicator(false);
 349         m_ui->buildInformationBox(tr("Address retrieval failed"), true);
 350         break;
 351     case SituareError::IMAGE_DOWNLOAD_FAILED:
 352         m_ui->buildInformationBox(tr("Image download failed"), true);
 353         break;
 354     case SituareError::MAP_IMAGE_DOWNLOAD_FAILED:
 355         m_ui->buildInformationBox(tr("Map image download failed"), true);
 356         break;
 357     case SituareError::GPS_INITIALIZATION_FAILED:
 358         setGPS(false);
 359         m_ui->buildInformationBox(tr("GPS initialization failed"), true);
 360         break;
 361     case SituareError::INVALID_JSON:
 362         m_ui->buildInformationBox(tr("Malformatted reply from server"), true);
 363         m_ui->loggedIn(false);
 364         m_facebookAuthenticator->clearAccountInformation(false); // clean all
 365         break;
 366     case SituareError::ERROR_ROUTING_FAILED:
 367         d->toggleProgressIndicator(false);
 368         m_ui->buildInformationBox(tr("Routing failed"), true);
 369         break;
 370     case SituareError::ERROR_LOCATION_SEARCH_FAILED:
 371         m_ui->buildInformationBox(tr("No results found"), true);
 372         break;
 373     default:
 374         d->toggleProgressIndicator(false);
 375         if(context == ErrorContext::NETWORK)
 376             qCritical() << __PRETTY_FUNCTION__ << "QNetworkReply::NetworkError: " << error;
 377         else
 378             qCritical() << __PRETTY_FUNCTION__ << "Unknown error: " << error;
 379         break;
 380     }
 381 }
 382
 383 void SituareEngine::imageReady(User *user)
 384 {
 385     qDebug() << __PRETTY_FUNCTION__;
 386
 387     if(user->type())
 388         emit userLocationReady(user);
 389     else
 390         emit friendImageReady(user);
 391 }
 392
 393 void SituareEngine::initializeGpsAndAutocentering()
 394 {
 395     qDebug() << __PRETTY_FUNCTION__;
 396
 397     QSettings settings(SETTINGS_ORGANIZATION_NAME, SETTINGS_APPLICATION_NAME);
 398     QVariant gpsEnabled = settings.value(SETTINGS_GPS_ENABLED);
 399     QVariant autoCenteringEnabled = settings.value(SETTINGS_AUTO_CENTERING_ENABLED);
 400
 401     if (m_gps->isInitialized()) {
 402
 403         if (gpsEnabled.toString().isEmpty()) { // First start. Situare.conf file does not exists
 404
 405             connect(m_gps, SIGNAL(position(GeoCoordinate, qreal)),
 406                     this, SLOT(setFirstStartZoomLevel()));
 407
 408             changeAutoCenteringSetting(true);
 409             setGPS(true);
 410
 411             m_ui->buildInformationBox(tr("GPS enabled"));
 412
 413         } else { // Normal start
 414             changeAutoCenteringSetting(autoCenteringEnabled.toBool());
 415             setGPS(gpsEnabled.toBool());
 416
 417             if (gpsEnabled.toBool())
 418                 m_ui->buildInformationBox(tr("GPS enabled"));
 419         }
 420     } else {
 421         setGPS(false);
 422     }
 423 }
 424
 425 void SituareEngine::locationSearch(QString location)
 426 {
 427     qDebug() << __PRETTY_FUNCTION__;
 428
 429     if(!location.isEmpty())
 430         m_geocodingService->requestLocation(location);
 431 }
 432
 433 void SituareEngine::loginActionPressed()
 434 {
 435     qDebug() << __PRETTY_FUNCTION__;
 436
 437     if (m_facebookAuthenticator->isLoggedIn())
 438         m_facebookAuthenticator->logOut(true);
 439     else if (m_networkAccessManager->isConnected())
 440         m_facebookAuthenticator->login();
 441     else
 442         error(ErrorContext::NETWORK, QNetworkReply::UnknownNetworkError);
 443 }
 444
 445 void SituareEngine::onLogin()
 446 {
 447     qDebug() << __PRETTY_FUNCTION__;
 448
 449     m_ui->loggedIn(true);
 450
 451     m_situareService->fetchLocations();
 452
 453     if (m_gps->isRunning())
 454         m_ui->readAutomaticLocationUpdateSettings();
 455 }
 456
 457 void SituareEngine::onLogout()
 458 {
 459     qDebug() << __PRETTY_FUNCTION__;
 460
 461     m_ui->loggedIn(false);
 462     m_situareService->updateSession(""); // empty session string means logged out
 463     m_automaticUpdateFirstStart = true;
 464 }
 465
 466 void SituareEngine::refreshUserData()
 467 {
 468     Q_D(SituareEngine);
 469
 470     qDebug() << __PRETTY_FUNCTION__;
 471
 472     if (m_networkAccessManager->isConnected()) {
 473         d->toggleProgressIndicator(true);
 474         m_situareService->fetchLocations();
 475     }
 476     else {
 477         error(ErrorContext::NETWORK, QNetworkReply::UnknownNetworkError);
 478     }
 479 }
 480
 481 void SituareEngine::requestAddress()
 482 {
 483     qDebug() << __PRETTY_FUNCTION__;
 484
 485     if (m_networkAccessManager->isConnected()) {
 486         if (m_gps->isRunning())
 487             m_situareService->reverseGeo(m_gps->lastPosition());
 488         else
 489             m_situareService->reverseGeo(m_mapEngine->centerGeoCoordinate());
 490     }
 491     else {
 492         error(ErrorContext::NETWORK, QNetworkReply::UnknownNetworkError);
 493     }
 494 }
 495
 496 void SituareEngine::requestUpdateLocation(const QString &status, bool publish)
 497 {
 498     qDebug() << __PRETTY_FUNCTION__;
 499     Q_D(SituareEngine);
 500
 501     if (m_networkAccessManager->isConnected()) {
 502         d->toggleProgressIndicator(true);
 503
 504         if (m_gps->isRunning())
 505             m_situareService->updateLocation(m_gps->lastPosition(), status, publish);
 506         else
 507             m_situareService->updateLocation(m_mapEngine->centerGeoCoordinate(), status, publish);
 508     }
 509     else {
 510         error(ErrorContext::NETWORK, QNetworkReply::UnknownNetworkError);
 511     }
 512 }
 513
 514 void SituareEngine::requestAutomaticUpdateIfMoved(GeoCoordinate position)
 515 {
 516     qDebug() << __PRETTY_FUNCTION__;
 517
 518     if ((fabs(m_lastUpdatedGPSPosition.longitude() - position.longitude()) >
 519          USER_MOVEMENT_MINIMUM_LONGITUDE_DIFFERENCE) ||
 520         (fabs(m_lastUpdatedGPSPosition.latitude() - position.latitude()) >
 521          USER_MOVEMENT_MINIMUM_LATITUDE_DIFFERENCE)) {
 522
 523         m_lastUpdatedGPSPosition = position;
 524         m_userMoved = true;
 525     }
 526
 527     if (m_automaticUpdateRequest && m_userMoved) {
 528         requestUpdateLocation(tr("Automatic location update"));
 529         m_automaticUpdateRequest = false;
 530         m_userMoved = false;
 531     }
 532 }
 533
 534 void SituareEngine::routeParsed(Route &route)
 535 {
 536     qDebug() << __PRETTY_FUNCTION__;
 537
 538     Q_D(SituareEngine);
 539
 540     d->routeModel.setSegments(route.segments());
 541
 542     d->toggleProgressIndicator(false);
 543 }
 544
 545 void SituareEngine::routeTo(const GeoCoordinate &endPointCoordinates)
 546 {
 547     Q_D(SituareEngine);
 548     qDebug() << __PRETTY_FUNCTION__;
 549
 550     d->toggleProgressIndicator(true);
 551
 552     if (m_gps->isRunning())
 553         m_routingService->requestRoute(m_gps->lastPosition(), endPointCoordinates);
 554     else
 555         m_routingService->requestRoute(m_mapEngine->centerGeoCoordinate(), endPointCoordinates);
 556 }
 557
 558 void SituareEngine::routeToCursor()
 559 {
 560     qDebug() << __PRETTY_FUNCTION__;
 561
 562     routeTo(m_mapEngine->centerGeoCoordinate());
 563 }
 564
 565 void SituareEngine::setAutoCentering(bool enabled)
 566 {
 567     qDebug() << __PRETTY_FUNCTION__ << enabled;
 568
 569     m_ui->setIndicatorButtonEnabled(enabled);
 570     m_mapEngine->setAutoCentering(enabled);
 571     m_ui->setCrosshairVisibility(!enabled);
 572
 573     if (enabled) {
 574         setGPS(true);
 575         m_gps->requestLastPosition();
 576     }
 577 }
 578
 579 void SituareEngine::setFirstStartZoomLevel()
 580 {
 581     qDebug() << __PRETTY_FUNCTION__;
 582
 583     if (m_autoCenteringEnabled) // autocentering is disabled when map is scrolled
 584         m_mapEngine->setZoomLevel(DEFAULT_ZOOM_LEVEL_WHEN_GPS_IS_AVAILABLE);
 585
 586     disconnect(m_gps, SIGNAL(position(GeoCoordinate, qreal)),
 587                this, SLOT(setFirstStartZoomLevel()));
 588 }
 589
 590 void SituareEngine::setGPS(bool enabled)
 591 {
 592     qDebug() << __PRETTY_FUNCTION__ << enabled;
 593
 594     if (m_gps->isInitialized()) {
 595         m_ui->setGPSButtonEnabled(enabled);
 596         m_mapEngine->setGPSEnabled(enabled);
 597
 598         if (enabled && !m_gps->isRunning()) {
 599             m_gps->start();
 600             m_gps->requestLastPosition();
 601
 602             if(m_facebookAuthenticator->isLoggedIn())
 603                 m_ui->readAutomaticLocationUpdateSettings();
 604         }
 605         else if (!enabled && m_gps->isRunning()) {
 606             m_gps->stop();
 607             changeAutoCenteringSetting(false);
 608             enableAutomaticLocationUpdate(false);
 609         }
 610     }
 611     else {
 612         if (enabled)
 613             m_ui->buildInformationBox(tr("Unable to start GPS"));
 614         m_ui->setGPSButtonEnabled(false);
 615         m_mapEngine->setGPSEnabled(false);
 616     }
 617 }
 618
 619 void SituareEngine::setPowerSaving(bool enabled)
 620 {
 621     qDebug() << __PRETTY_FUNCTION__ << enabled;
 622
 623     m_gps->enablePowerSave(enabled);
 624
 625     if(m_autoCenteringEnabled)
 626         m_mapEngine->setAutoCentering(!enabled);
 627 }
 628
 629 void SituareEngine::showContactDialog(const QString &facebookId)
 630 {
 631     qDebug() << __PRETTY_FUNCTION__;
 632
 633     QString guid = m_contactManager->contactGuid(facebookId);
 634
 635     if (!guid.isEmpty())
 636         m_ui->showContactDialog(guid);
 637     else
 638         m_ui->buildInformationBox(tr("Unable to find contact.\nAdd Facebook IM "
 639                                      "account from Conversations to use this feature."), true);
 640 }
 641
 642 void SituareEngine::signalsFromFacebookAuthenticator()
 643 {
 644     qDebug() << __PRETTY_FUNCTION__;
 645
 646     connect(m_facebookAuthenticator, SIGNAL(error(int, int)),
 647             this, SLOT(error(int, int)));
 648
 649     connect(m_facebookAuthenticator, SIGNAL(loggedIn(QString, bool)),
 650             m_situareService, SLOT(updateSession(QString)));
 651
 652     connect(m_facebookAuthenticator, SIGNAL(loggedIn(QString, bool)),
 653             this, SLOT(onLogin()));
 654
 655     connect(m_facebookAuthenticator, SIGNAL(loggedOut()), this, SLOT(onLogout()));
 656 }
 657
 658 void SituareEngine::signalsFromGeocodingService()
 659 {
 660     qDebug() << __PRETTY_FUNCTION__;
 661
 662     connect(m_geocodingService, SIGNAL(locationDataParsed(const QList<Location>&)),
 663             m_ui, SIGNAL(locationDataParsed(const QList<Location>&)));
 664
 665     connect(m_geocodingService, SIGNAL(error(int, int)),
 666             this, SLOT(error(int, int)));
 667 }
 668
 669 void SituareEngine::signalsFromGPS()
 670 {
 671     qDebug() << __PRETTY_FUNCTION__;
 672
 673     connect(m_gps, SIGNAL(position(GeoCoordinate, qreal)),
 674             m_mapEngine, SLOT(gpsPositionUpdate(GeoCoordinate, qreal)));
 675
 676     connect(m_gps, SIGNAL(timeout()),
 677             m_ui, SLOT(gpsTimeout()));
 678
 679     connect(m_gps, SIGNAL(error(int, int)),
 680             this, SLOT(error(int, int)));
 681 }
 682
 683 void SituareEngine::signalsFromMainWindow()
 684 {
 685     qDebug() << __PRETTY_FUNCTION__;
 686
 687     connect(m_ui, SIGNAL(error(int, int)),
 688             this, SLOT(error(int, int)));
 689
 690     connect(m_ui, SIGNAL(loginActionPressed()),
 691             this, SLOT(loginActionPressed()));
 692
 693     // signals from map view
 694     connect(m_ui, SIGNAL(mapViewScrolled(SceneCoordinate)),
 695             m_mapEngine, SLOT(setCenterPosition(SceneCoordinate)));
 696
 697     connect(m_ui, SIGNAL(mapViewResized(QSize)),
 698             m_mapEngine, SLOT(viewResized(QSize)));
 699
 700     connect(m_ui, SIGNAL(viewZoomFinished()),
 701             m_mapEngine, SLOT(viewZoomFinished()));
 702
 703     // signals from zoom buttons (zoom panel and volume buttons)
 704     connect(m_ui, SIGNAL(zoomIn()),
 705             m_mapEngine, SLOT(zoomIn()));
 706
 707     connect(m_ui, SIGNAL(zoomOut()),
 708             m_mapEngine, SLOT(zoomOut()));
 709
 710     // signals from menu buttons
 711     connect(m_ui, SIGNAL(gpsTriggered(bool)),
 712             this, SLOT(setGPS(bool)));
 713
 714     connect(m_ui, SIGNAL(requestReverseGeo()),
 715             this, SLOT(requestAddress()));
 716
 717     connect(m_ui, SIGNAL(locationUpdate(QString,bool)),
 718             this, SLOT(requestUpdateLocation(QString,bool)));
 719
 720     connect(m_ui, SIGNAL(enableAutomaticLocationUpdate(bool, int)),
 721             this, SLOT(enableAutomaticLocationUpdate(bool, int)));
 722
 723     // signals from user info tab
 724     connect(m_ui, SIGNAL(refreshUserData()),
 725             this, SLOT(refreshUserData()));
 726
 727     connect(m_ui, SIGNAL(centerToCoordinates(GeoCoordinate)),
 728             m_mapEngine, SLOT(centerToCoordinates(GeoCoordinate)));
 729
 730     // routing signal from friend list tab & search location tab
 731     connect(m_ui, SIGNAL(routeTo(const GeoCoordinate&)),
 732             this, SLOT(routeTo(const GeoCoordinate&)));
 733
 734     // signals from location search panel
 735     connect(m_ui,
 736             SIGNAL(locationItemClicked(const GeoCoordinate&, const GeoCoordinate&)),
 737             m_mapEngine,
 738             SLOT(showMapArea(const GeoCoordinate&, const GeoCoordinate&)));
 739
 740     connect(m_ui, SIGNAL(searchHistoryItemClicked(QString)),
 741             this, SLOT(locationSearch(QString)));
 742
 743     // signals from routing tab
 744     connect(m_ui, SIGNAL(clearRoute()),
 745             m_mapEngine, SLOT(clearRoute()));
 746
 747     connect(m_ui, SIGNAL(routeToCursor()),
 748             this, SLOT(routeToCursor()));
 749
 750     // signals from distance indicator button
 751     connect(m_ui, SIGNAL(autoCenteringTriggered(bool)),
 752             this, SLOT(changeAutoCenteringSetting(bool)));
 753
 754     connect(m_ui, SIGNAL(draggingModeTriggered()),
 755             this, SLOT(draggingModeTriggered()));
 756
 757     // signal from search location dialog
 758     connect(m_ui, SIGNAL(searchForLocation(QString)),
 759             this, SLOT(locationSearch(QString)));
 760
 761     // signal from friend list panel
 762     connect(m_ui, SIGNAL(requestContactDialog(const QString &)),
 763             this, SLOT(showContactDialog(const QString &)));
 764 }
 765
 766 void SituareEngine::signalsFromMapEngine()
 767 {
 768     qDebug() << __PRETTY_FUNCTION__;
 769
 770     connect(m_mapEngine, SIGNAL(error(int, int)),
 771             this, SLOT(error(int, int)));
 772
 773     connect(m_mapEngine, SIGNAL(locationChanged(SceneCoordinate)),
 774             m_ui, SIGNAL(centerToSceneCoordinates(SceneCoordinate)));
 775
 776     connect(m_mapEngine, SIGNAL(zoomLevelChanged(int)),
 777             m_ui, SIGNAL(zoomLevelChanged(int)));
 778
 779     connect(m_mapEngine, SIGNAL(mapScrolledManually()),
 780             this, SLOT(disableAutoCentering()));
 781
 782     connect(m_mapEngine, SIGNAL(maxZoomLevelReached()),
 783             m_ui, SIGNAL(maxZoomLevelReached()));
 784
 785     connect(m_mapEngine, SIGNAL(minZoomLevelReached()),
 786             m_ui, SIGNAL(minZoomLevelReached()));
 787
 788     connect(m_mapEngine, SIGNAL(locationItemClicked(QList<QString>)),
 789             m_ui, SIGNAL(locationItemClicked(QList<QString>)));
 790
 791     connect(m_mapEngine, SIGNAL(newMapResolution(qreal)),
 792             m_ui, SIGNAL(newMapResolution(qreal)));
 793
 794     connect(m_mapEngine, SIGNAL(directionIndicatorValuesUpdate(qreal, qreal, bool)),
 795             m_ui, SIGNAL(directionIndicatorValuesUpdate(qreal, qreal, bool)));
 796 }
 797
 798 void SituareEngine::signalsFromRoutingService()
 799 {
 800     qDebug() << __PRETTY_FUNCTION__;
 801
 802     connect(m_routingService, SIGNAL(routeParsed(Route&)),
 803             this, SLOT(routeParsed(Route&)));
 804
 805     connect(m_routingService, SIGNAL(routeParsed(Route&)),
 806             m_mapEngine, SLOT(setRoute(Route&)));
 807
 808     connect(m_routingService, SIGNAL(routeParsed(Route&)),
 809             m_ui, SIGNAL(routeParsed(Route&)));
 810
 811     connect(m_routingService, SIGNAL(error(int, int)),
 812             this, SLOT(error(int, int)));
 813 }
 814
 815 void SituareEngine::signalsFromSituareService()
 816 {
 817     qDebug() << __PRETTY_FUNCTION__;
 818
 819     connect(m_situareService, SIGNAL(error(int, int)),
 820             this, SLOT(error(int, int)));
 821
 822     connect(m_situareService, SIGNAL(imageReady(User*)),
 823             this, SLOT(imageReady(User*)));
 824
 825     connect(m_situareService, SIGNAL(reverseGeoReady(QString)),
 826             m_ui, SIGNAL(reverseGeoReady(QString)));
 827
 828     connect(m_situareService, SIGNAL(userDataChanged(User*, QList<User*>&)),
 829             this, SLOT(userDataChanged(User*, QList<User*>&)));
 830
 831     connect(m_situareService, SIGNAL(updateWasSuccessful()),
 832             this, SLOT(updateWasSuccessful()));
 833
 834     connect(m_situareService, SIGNAL(updateWasSuccessful()),
 835             m_ui, SIGNAL(updateWasSuccessful()));
 836 }
 837
 838 void SituareEngine::startAutomaticUpdate()
 839 {
 840     qDebug() << __PRETTY_FUNCTION__;
 841
 842     m_gps->requestUpdate();
 843     m_automaticUpdateRequest = true;
 844 }
 845
 846 void SituareEngine::topmostWindowChanged(bool isMainWindow)
 847 {
 848     qDebug() << __PRETTY_FUNCTION__;
 849
 850     setPowerSaving(!isMainWindow);
 851 }
 852
 853 void SituareEngine::updateWasSuccessful()
 854 {
 855     qDebug() << __PRETTY_FUNCTION__;
 856
 857     if (m_networkAccessManager->isConnected())
 858         m_situareService->fetchLocations();
 859     else
 860         error(ErrorContext::NETWORK, QNetworkReply::UnknownNetworkError);
 861 }
 862
 863 void SituareEngine::userDataChanged(User *user, QList<User *> &friendsList)
 864 {
 865     qDebug() << __PRETTY_FUNCTION__;
 866     Q_D(SituareEngine);
 867     d->toggleProgressIndicator(false);
 868
 869     emit userLocationReady(user);
 870     emit friendsLocationsReady(friendsList);
 871     d->friendModel.setFriends(friendsList);
 872 }
 873
 874 void SituareEngine::routeFromTo(double fromLatitude, double fromLongitude, double toLatitude, double toLongitude)
 875 {
 876     qDebug() << __PRETTY_FUNCTION__;
 877
 878     Q_D(SituareEngine);
 879     d->toggleProgressIndicator(true);
 880
 881     m_routingService->requestRoute(GeoCoordinate(fromLatitude, fromLongitude), GeoCoordinate(toLatitude, toLongitude));
 882 }