git.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 "ui/facebookloginbrowser.h"
  35 #include "facebookservice/facebookauthentication.h"
  36 #include "gps/gpsposition.h"
  37 #include "map/mapengine.h"
  38 #include "routing/geocodingservice.h"
  39 #include "routing/routingservice.h"
  40 #include "mce.h"
  41 #include "network/networkaccessmanager.h"
  42 #include "situareservice/situareservice.h"
  43 #include "ui/mainwindow.h"
  44
  45 #include "engine.h"
  46
  47 const QString SETTINGS_GPS_ENABLED = "GPS_ENABLED"; ///< GPS setting
  48 const QString SETTINGS_AUTO_CENTERING_ENABLED = "AUTO_CENTERING_ENABLED";///< Auto centering setting
  49 const int DEFAULT_ZOOM_LEVEL_WHEN_GPS_IS_AVAILABLE = 12;  ///< Default zoom level when GPS available
  50 const qreal USER_MOVEMENT_MINIMUM_LONGITUDE_DIFFERENCE = 0.003;///< Min value for user move latitude
  51 const qreal USER_MOVEMENT_MINIMUM_LATITUDE_DIFFERENCE = 0.001;///< Min value for user move longitude
  52 const int MIN_UPDATE_INTERVAL_MSECS = 5*60*1000;
  53
  54 SituareEngine::SituareEngine()
  55     : m_autoCenteringEnabled(false),
  56       m_automaticUpdateFirstStart(true),
  57       m_automaticUpdateRequest(false),
  58       m_userMoved(false),
  59       m_automaticUpdateIntervalTimer(0),
  60       m_lastUpdatedGPSPosition(GeoCoordinate())
  61 {
  62     qDebug() << __PRETTY_FUNCTION__;
  63
  64     m_ui = new MainWindow;
  65     m_ui->updateItemVisibility();
  66
  67     Application *application = static_cast<Application *>(qApp);
  68     application->registerWindow(m_ui->winId());
  69
  70     connect(application, SIGNAL(topmostWindowChanged(bool)),
  71             this, SLOT(topmostWindowChanged(bool)));
  72
  73     m_networkAccessManager = new NetworkAccessManager(this);
  74
  75     // build MapEngine
  76     m_mapEngine = new MapEngine(this);
  77     m_ui->setMapViewScene(m_mapEngine->scene());
  78
  79     // build GPS
  80     m_gps = new GPSPosition(this);
  81
  82     // build SituareService
  83     m_situareService = new SituareService(this);
  84
  85     // build FacebookAuthenticator
  86     m_facebookAuthenticator = new FacebookAuthentication(this);
  87
  88     // build routing service
  89     m_routingService = new RoutingService(this); // create this when needed, not in constructor!
  90
  91     // build geocoding service
  92     m_geocodingService = new GeocodingService(this);
  93
  94     // connect signals
  95     signalsFromMapEngine();
  96     signalsFromGeocodingService();
  97     signalsFromGPS();
  98     signalsFromRoutingService();
  99     signalsFromSituareService();
 100     signalsFromMainWindow();
 101     signalsFromFacebookAuthenticator();
 102
 103     connect(this, SIGNAL(userLocationReady(User*)),
 104             m_ui, SIGNAL(userLocationReady(User*)));
 105
 106     connect(this, SIGNAL(friendsLocationsReady(QList<User*>&)),
 107             m_ui, SIGNAL(friendsLocationsReady(QList<User*>&)));
 108
 109     connect(this, SIGNAL(userLocationReady(User*)),
 110             m_mapEngine, SLOT(receiveOwnLocation(User*)));
 111
 112     connect(this, SIGNAL(friendsLocationsReady(QList<User*>&)),
 113             m_mapEngine, SIGNAL(friendsLocationsReady(QList<User*>&)));
 114
 115     connect(this, SIGNAL(friendImageReady(User*)),
 116             m_ui, SIGNAL(friendImageReady(User*)));
 117
 118     connect(this, SIGNAL(friendImageReady(User*)),
 119             m_mapEngine, SIGNAL(friendImageReady(User*)));
 120
 121     m_automaticUpdateIntervalTimer = new QTimer(this);
 122     connect(m_automaticUpdateIntervalTimer, SIGNAL(timeout()),
 123             this, SLOT(startAutomaticUpdate()));
 124
 125     // signals connected, now it's time to show the main window
 126     // but init the MapEngine before so starting location is set
 127     m_mapEngine->init();
 128     m_ui->show();
 129
 130     m_facebookAuthenticator->start();
 131
 132     m_gps->setMode(GPSPosition::Default);
 133     initializeGpsAndAutocentering();
 134
 135     m_mce = new MCE(this);
 136     connect(m_mce, SIGNAL(displayOff(bool)), this, SLOT(setPowerSaving(bool)));
 137
 138     m_contactManager = new ContactManager(this);
 139     m_contactManager->requestContactGuids();
 140
 141     ///< @todo just for testing the login browser
 142     login();
 143 }
 144
 145 SituareEngine::~SituareEngine()
 146 {
 147     qDebug() << __PRETTY_FUNCTION__;
 148
 149     delete m_ui;
 150
 151     QSettings settings(DIRECTORY_NAME, FILE_NAME);
 152     settings.setValue(SETTINGS_GPS_ENABLED, m_gps->isRunning());
 153     settings.setValue(SETTINGS_AUTO_CENTERING_ENABLED, m_autoCenteringEnabled);
 154 }
 155
 156 void SituareEngine::changeAutoCenteringSetting(bool enabled)
 157 {
 158     qDebug() << __PRETTY_FUNCTION__ << enabled;
 159
 160     m_autoCenteringEnabled = enabled;
 161     setAutoCentering(enabled);
 162 }
 163
 164 void SituareEngine::disableAutoCentering()
 165 {
 166     qDebug() << __PRETTY_FUNCTION__;
 167
 168     changeAutoCenteringSetting(false);
 169 }
 170
 171 void SituareEngine::draggingModeTriggered()
 172 {
 173     qDebug() << __PRETTY_FUNCTION__;
 174
 175     if (m_mce)
 176         m_mce->vibrationFeedback();
 177 }
 178
 179 void SituareEngine::enableAutomaticLocationUpdate(bool enabled, int updateIntervalMsecs)
 180 {
 181     qDebug() << __PRETTY_FUNCTION__;
 182
 183     //Show automatic update confirmation dialog
 184     if (m_automaticUpdateFirstStart && m_gps->isRunning() && enabled) {
 185         m_ui->showEnableAutomaticUpdateLocationDialog(
 186                 tr("Do you want to enable automatic location update with %1 min update interval?")
 187                 .arg(updateIntervalMsecs/1000/60));
 188         m_automaticUpdateFirstStart = false;
 189     } else {
 190         if (enabled && m_gps->isRunning()) {
 191             m_ui->buildInformationBox(tr("Automatic location update enabled"));
 192             if (updateIntervalMsecs < MIN_UPDATE_INTERVAL_MSECS)
 193                 m_automaticUpdateIntervalTimer->setInterval(MIN_UPDATE_INTERVAL_MSECS);
 194             else
 195                 m_automaticUpdateIntervalTimer->setInterval(updateIntervalMsecs);
 196
 197             connect(m_gps, SIGNAL(position(GeoCoordinate, qreal)),
 198                     this, SLOT(requestAutomaticUpdateIfMoved(GeoCoordinate)));
 199
 200             m_automaticUpdateIntervalTimer->start();
 201
 202         } else {
 203             disconnect(m_gps, SIGNAL(position(GeoCoordinate, qreal)),
 204                     this, SLOT(requestAutomaticUpdateIfMoved(GeoCoordinate)));
 205
 206             m_automaticUpdateIntervalTimer->stop();
 207         }
 208     }
 209 }
 210
 211 void SituareEngine::error(const int context, const int error)
 212 {
 213     qDebug() << __PRETTY_FUNCTION__;
 214
 215     switch(error)
 216     {
 217     case SituareError::ERROR_GENERAL:
 218         if(context == ErrorContext::SITUARE) {
 219             m_ui->toggleProgressIndicator(false);
 220             m_ui->buildInformationBox(tr("Unknown server error"), true);
 221         }
 222         break;
 223     case 1: //errors: SituareError::ERROR_MISSING_ARGUMENT and QNetworkReply::ConnectionRefusedError
 224         m_ui->toggleProgressIndicator(false);
 225         if(context == ErrorContext::SITUARE) {
 226             m_ui->buildInformationBox(tr("Missing parameter from request"), true);
 227         } else if(context == ErrorContext::NETWORK) {
 228             m_ui->buildInformationBox(tr("Connection refused by the server"), true);
 229         }
 230         break;
 231     case QNetworkReply::RemoteHostClosedError:
 232         if(context == ErrorContext::NETWORK) {
 233             m_ui->toggleProgressIndicator(false);
 234             m_ui->buildInformationBox(tr("Connection closed by the server"), true);
 235         }
 236         break;
 237     case QNetworkReply::HostNotFoundError:
 238         if(context == ErrorContext::NETWORK) {
 239             m_ui->toggleProgressIndicator(false);
 240             m_ui->buildInformationBox(tr("Remote server not found"), true);
 241         }
 242         break;
 243     case QNetworkReply::TimeoutError:
 244         if(context == ErrorContext::NETWORK) {
 245             m_ui->toggleProgressIndicator(false);
 246             m_ui->buildInformationBox(tr("Connection timed out"), true);
 247         }
 248         break;
 249     case QNetworkReply::UnknownNetworkError:
 250         if(context == ErrorContext::NETWORK) {
 251             m_ui->toggleProgressIndicator(false);
 252             m_ui->buildInformationBox(tr("No network connection"), true);
 253         }
 254         break;
 255     case SituareError::SESSION_EXPIRED:
 256         m_ui->buildInformationBox(tr("Session expired. Please login again"), true);
 257         m_facebookAuthenticator->clearAccountInformation(true); // keep username = true
 258         m_situareService->clearUserData();
 259         m_ui->loggedIn(false);
 260         m_ui->loginFailed();
 261         break;
 262     case SituareError::LOGIN_FAILED:
 263         m_ui->toggleProgressIndicator(false);
 264         m_ui->buildInformationBox(tr("Invalid E-mail address or password"), true);
 265         m_ui->loginFailed();
 266         break;
 267     case SituareError::UPDATE_FAILED:
 268         m_ui->toggleProgressIndicator(false);
 269         m_ui->buildInformationBox(tr("Update failed, please try again"), true);
 270         break;
 271     case SituareError::DATA_RETRIEVAL_FAILED:
 272         m_ui->toggleProgressIndicator(false);
 273         m_ui->buildInformationBox(tr("Data retrieval failed, please try again"), true);
 274         break;
 275     case SituareError::ADDRESS_RETRIEVAL_FAILED:
 276         m_ui->toggleProgressIndicator(false);
 277         m_ui->buildInformationBox(tr("Address retrieval failed"), true);
 278         break;
 279     case SituareError::IMAGE_DOWNLOAD_FAILED:
 280         m_ui->buildInformationBox(tr("Image download failed"), true);
 281         break;
 282     case SituareError::MAP_IMAGE_DOWNLOAD_FAILED:
 283         m_ui->buildInformationBox(tr("Map image download failed"), true);
 284         break;
 285     case SituareError::GPS_INITIALIZATION_FAILED:
 286         setGPS(false);
 287         m_ui->buildInformationBox(tr("GPS initialization failed"), true);
 288         break;
 289     case SituareError::INVALID_JSON:
 290         m_ui->buildInformationBox(tr("Malformatted reply from server"), true);
 291         m_ui->loggedIn(false);
 292         m_facebookAuthenticator->clearAccountInformation(false); // clean all
 293         break;
 294     case SituareError::ERROR_ROUTING_FAILED:
 295         m_ui->toggleProgressIndicator(false);
 296         m_ui->buildInformationBox(tr("Routing failed"), true);
 297         break;
 298     case SituareError::ERROR_LOCATION_SEARCH_FAILED:
 299         m_ui->buildInformationBox(tr("No results found"), true);
 300         break;
 301     default:
 302         m_ui->toggleProgressIndicator(false);
 303         if(context == ErrorContext::NETWORK)
 304             qCritical() << __PRETTY_FUNCTION__ << "QNetworkReply::NetworkError: " << error;
 305         else
 306             qCritical() << __PRETTY_FUNCTION__ << "Unknown error: " << error;
 307         break;
 308     }
 309 }
 310
 311 void SituareEngine::fetchUsernameFromSettings()
 312 {
 313     qDebug() << __PRETTY_FUNCTION__;
 314
 315     m_ui->setUsername(m_facebookAuthenticator->loadUsername());
 316 }
 317
 318 void SituareEngine::imageReady(User *user)
 319 {
 320     qDebug() << __PRETTY_FUNCTION__;
 321
 322     if(user->type())
 323         emit userLocationReady(user);
 324     else
 325         emit friendImageReady(user);
 326 }
 327
 328 void SituareEngine::initializeGpsAndAutocentering()
 329 {
 330     qDebug() << __PRETTY_FUNCTION__;
 331
 332     QSettings settings(DIRECTORY_NAME, FILE_NAME);
 333     QVariant gpsEnabled = settings.value(SETTINGS_GPS_ENABLED);
 334     QVariant autoCenteringEnabled = settings.value(SETTINGS_AUTO_CENTERING_ENABLED);
 335
 336     if (m_gps->isInitialized()) {
 337
 338         if (gpsEnabled.toString().isEmpty()) { // First start. Situare.conf file does not exists
 339
 340             connect(m_gps, SIGNAL(position(GeoCoordinate, qreal)),
 341                     this, SLOT(setFirstStartZoomLevel()));
 342
 343             changeAutoCenteringSetting(true);
 344             setGPS(true);
 345
 346             m_ui->buildInformationBox(tr("GPS enabled"));
 347
 348         } else { // Normal start
 349             changeAutoCenteringSetting(autoCenteringEnabled.toBool());
 350             setGPS(gpsEnabled.toBool());
 351
 352             if (gpsEnabled.toBool())
 353                 m_ui->buildInformationBox(tr("GPS enabled"));
 354         }
 355     } else {
 356         setGPS(false);
 357     }
 358 }
 359
 360 void SituareEngine::locationSearch(QString location)
 361 {
 362     qDebug() << __PRETTY_FUNCTION__;
 363
 364     if(!location.isEmpty())
 365         m_geocodingService->requestLocation(location);
 366 }
 367
 368 void SituareEngine::login()
 369 {
 370     qWarning() << __PRETTY_FUNCTION__;
 371
 372     FacebookLoginBrowser *browser = m_ui->buildFacebookLoginBrowser();
 373
 374     connect(browser, SIGNAL(loadFinished(bool)),
 375             m_facebookAuthenticator, SLOT(loadFinished(bool)));
 376
 377     connect(browser, SIGNAL(urlChanged(QUrl)),
 378             m_facebookAuthenticator, SLOT(urlChanged(QUrl)));
 379
 380     browser->load(QUrl("https://graph.facebook.com/oauth/authorize?client_id=4197c64da2fb6b927236feaea32d7d81&redirect_uri=http://www.facebook.com/connect/login_success.html&display=touch&type=user_agent"));
 381 }
 382
 383 void SituareEngine::loggedIn()
 384 {
 385     qWarning() << __PRETTY_FUNCTION__;
 386
 387     m_ui->destroyFacebookLoginBrowser();
 388 }
 389
 390 void SituareEngine::loginActionPressed()
 391 {
 392     qDebug() << __PRETTY_FUNCTION__;
 393
 394     if (m_networkAccessManager->isConnected()) {
 395         if(m_ui->loginState()) {
 396             logout();
 397             m_situareService->clearUserData();
 398         } else {
 399             m_facebookAuthenticator->start();
 400         }
 401     }
 402     else {
 403         error(ErrorContext::NETWORK, QNetworkReply::UnknownNetworkError);
 404     }
 405 }
 406
 407 void SituareEngine::loginOk()
 408 {
 409     qDebug() << __PRETTY_FUNCTION__;
 410
 411     m_ui->loggedIn(true);
 412
 413     m_ui->show();
 414     m_situareService->fetchLocations(); // request user locations
 415
 416     if (m_gps->isRunning())
 417         m_ui->readAutomaticLocationUpdateSettings();
 418 }
 419
 420 void SituareEngine::loginProcessCancelled()
 421 {
 422     qDebug() << __PRETTY_FUNCTION__;
 423
 424     m_ui->toggleProgressIndicator(false);
 425     m_ui->updateItemVisibility();
 426 }
 427
 428 void SituareEngine::logout()
 429 {
 430     qDebug() << __PRETTY_FUNCTION__;
 431
 432     m_ui->loggedIn(false);
 433
 434     // signal to clear locationUpdateDialog's data
 435     connect(this, SIGNAL(clearUpdateLocationDialogData()),
 436             m_ui, SIGNAL(clearUpdateLocationDialogData()));
 437     emit clearUpdateLocationDialogData();
 438
 439     m_facebookAuthenticator->clearAccountInformation(); // clear all
 440     m_automaticUpdateFirstStart = true;
 441 }
 442
 443 void SituareEngine::refreshUserData()
 444 {
 445     qDebug() << __PRETTY_FUNCTION__;
 446
 447     if (m_networkAccessManager->isConnected()) {
 448         m_ui->toggleProgressIndicator(true);
 449         m_situareService->fetchLocations();
 450     }
 451     else {
 452         error(ErrorContext::NETWORK, QNetworkReply::UnknownNetworkError);
 453     }
 454 }
 455
 456 void SituareEngine::requestAddress()
 457 {
 458     qDebug() << __PRETTY_FUNCTION__;
 459
 460     if (m_networkAccessManager->isConnected()) {
 461         if (m_gps->isRunning())
 462             m_situareService->reverseGeo(m_gps->lastPosition());
 463         else
 464             m_situareService->reverseGeo(m_mapEngine->centerGeoCoordinate());
 465     }
 466     else {
 467         error(ErrorContext::NETWORK, QNetworkReply::UnknownNetworkError);
 468     }
 469 }
 470
 471 void SituareEngine::requestUpdateLocation(const QString &status, bool publish)
 472 {
 473     qDebug() << __PRETTY_FUNCTION__;
 474
 475     if (m_networkAccessManager->isConnected()) {
 476         m_ui->toggleProgressIndicator(true);
 477
 478         if (m_gps->isRunning())
 479             m_situareService->updateLocation(m_gps->lastPosition(), status, publish);
 480         else
 481             m_situareService->updateLocation(m_mapEngine->centerGeoCoordinate(), status, publish);
 482     }
 483     else {
 484         error(ErrorContext::NETWORK, QNetworkReply::UnknownNetworkError);
 485     }
 486 }
 487
 488 void SituareEngine::requestAutomaticUpdateIfMoved(GeoCoordinate position)
 489 {
 490     qDebug() << __PRETTY_FUNCTION__;
 491
 492     if ((fabs(m_lastUpdatedGPSPosition.longitude() - position.longitude()) >
 493          USER_MOVEMENT_MINIMUM_LONGITUDE_DIFFERENCE) ||
 494         (fabs(m_lastUpdatedGPSPosition.latitude() - position.latitude()) >
 495          USER_MOVEMENT_MINIMUM_LATITUDE_DIFFERENCE)) {
 496
 497         m_lastUpdatedGPSPosition = position;
 498         m_userMoved = true;
 499     }
 500
 501     if (m_automaticUpdateRequest && m_userMoved) {
 502         requestUpdateLocation(tr("Automatic location update"));
 503         m_automaticUpdateRequest = false;
 504         m_userMoved = false;
 505     }
 506 }
 507
 508 void SituareEngine::routeParsed(Route &route)
 509 {
 510     qDebug() << __PRETTY_FUNCTION__;
 511
 512     Q_UNUSED(route);
 513
 514     m_ui->toggleProgressIndicator(false);
 515 }
 516
 517 void SituareEngine::routeTo(const GeoCoordinate &endPointCoordinates)
 518 {
 519     qDebug() << __PRETTY_FUNCTION__;
 520
 521     m_ui->toggleProgressIndicator(true);
 522
 523     if (m_gps->isRunning())
 524         m_routingService->requestRoute(m_gps->lastPosition(), endPointCoordinates);
 525     else
 526         m_routingService->requestRoute(m_mapEngine->centerGeoCoordinate(), endPointCoordinates);
 527 }
 528
 529 void SituareEngine::routeToCursor()
 530 {
 531     qDebug() << __PRETTY_FUNCTION__;
 532
 533     routeTo(m_mapEngine->centerGeoCoordinate());
 534 }
 535
 536 void SituareEngine::setAutoCentering(bool enabled)
 537 {
 538     qDebug() << __PRETTY_FUNCTION__ << enabled;
 539
 540     m_ui->setIndicatorButtonEnabled(enabled);
 541     m_mapEngine->setAutoCentering(enabled);
 542     m_ui->setCrosshairVisibility(!enabled);
 543
 544     if (enabled) {
 545         setGPS(true);
 546         m_gps->requestLastPosition();
 547     }
 548 }
 549
 550 void SituareEngine::setFirstStartZoomLevel()
 551 {
 552     qDebug() << __PRETTY_FUNCTION__;
 553
 554     if (m_autoCenteringEnabled) // autocentering is disabled when map is scrolled
 555         m_mapEngine->setZoomLevel(DEFAULT_ZOOM_LEVEL_WHEN_GPS_IS_AVAILABLE);
 556
 557     disconnect(m_gps, SIGNAL(position(GeoCoordinate, qreal)),
 558                this, SLOT(setFirstStartZoomLevel()));
 559 }
 560
 561 void SituareEngine::setGPS(bool enabled)
 562 {
 563     qDebug() << __PRETTY_FUNCTION__ << enabled;
 564
 565     if (m_gps->isInitialized()) {
 566         m_ui->setGPSButtonEnabled(enabled);
 567         m_mapEngine->setGPSEnabled(enabled);
 568
 569         if (enabled && !m_gps->isRunning()) {
 570             m_gps->start();
 571             m_gps->requestLastPosition();
 572
 573             if(m_ui->loginState())
 574                 m_ui->readAutomaticLocationUpdateSettings();
 575         }
 576         else if (!enabled && m_gps->isRunning()) {
 577             m_gps->stop();
 578             changeAutoCenteringSetting(false);
 579             enableAutomaticLocationUpdate(false);
 580         }
 581     }
 582     else {
 583         if (enabled)
 584             m_ui->buildInformationBox(tr("Unable to start GPS"));
 585         m_ui->setGPSButtonEnabled(false);
 586         m_mapEngine->setGPSEnabled(false);
 587     }
 588 }
 589
 590 void SituareEngine::setPowerSaving(bool enabled)
 591 {
 592     qDebug() << __PRETTY_FUNCTION__ << enabled;
 593
 594     m_gps->enablePowerSave(enabled);
 595
 596     if(m_autoCenteringEnabled)
 597         m_mapEngine->setAutoCentering(!enabled);
 598 }
 599
 600 void SituareEngine::showContactDialog(const QString &facebookId)
 601 {
 602     qDebug() << __PRETTY_FUNCTION__;
 603
 604     QString guid = m_contactManager->contactGuid(facebookId);
 605
 606     if (!guid.isEmpty())
 607         m_ui->showContactDialog(guid);
 608     else
 609         m_ui->buildInformationBox(tr("Unable to find contact.\nAdd Facebook IM "
 610                                      "account from Conversations to use this feature."), true);
 611 }
 612
 613 void SituareEngine::signalsFromFacebookAuthenticator()
 614 {
 615     qDebug() << __PRETTY_FUNCTION__;
 616
 617     connect(m_facebookAuthenticator, SIGNAL(error(int, int)),
 618             this, SLOT(error(int, int)));
 619
 620     connect(m_facebookAuthenticator, SIGNAL(credentialsReady(FacebookCredentials)),
 621             m_situareService, SLOT(credentialsReady(FacebookCredentials)));
 622
 623     connect(m_facebookAuthenticator, SIGNAL(credentialsReady(FacebookCredentials)),
 624             this, SLOT(loginOk()));
 625
 626     connect(m_facebookAuthenticator, SIGNAL(newLoginRequest()),
 627             m_ui, SLOT(startLoginProcess()));
 628
 629     connect(m_facebookAuthenticator, SIGNAL(saveCookiesRequest()),
 630             m_ui, SLOT(saveCookies()));
 631
 632     connect(m_facebookAuthenticator, SIGNAL(loginUsingCookies()),
 633             m_ui, SLOT(loginUsingCookies()));
 634
 635     connect(m_facebookAuthenticator, SIGNAL(loggedIn(QString)),
 636             this, SLOT(loggedIn()));
 637 }
 638
 639 void SituareEngine::signalsFromGeocodingService()
 640 {
 641     qDebug() << __PRETTY_FUNCTION__;
 642
 643     connect(m_geocodingService, SIGNAL(locationDataParsed(const QList<Location>&)),
 644             m_ui, SIGNAL(locationDataParsed(const QList<Location>&)));
 645
 646     connect(m_geocodingService, SIGNAL(error(int, int)),
 647             this, SLOT(error(int, int)));
 648 }
 649
 650 void SituareEngine::signalsFromGPS()
 651 {
 652     qDebug() << __PRETTY_FUNCTION__;
 653
 654     connect(m_gps, SIGNAL(position(GeoCoordinate, qreal)),
 655             m_mapEngine, SLOT(gpsPositionUpdate(GeoCoordinate, qreal)));
 656
 657     connect(m_gps, SIGNAL(timeout()),
 658             m_ui, SLOT(gpsTimeout()));
 659
 660     connect(m_gps, SIGNAL(error(int, int)),
 661             this, SLOT(error(int, int)));
 662 }
 663
 664 void SituareEngine::signalsFromMainWindow()
 665 {
 666     qDebug() << __PRETTY_FUNCTION__;
 667
 668     connect(m_ui, SIGNAL(error(int, int)),
 669             this, SLOT(error(int, int)));
 670
 671     connect(m_ui, SIGNAL(fetchUsernameFromSettings()),
 672             this, SLOT(fetchUsernameFromSettings()));
 673
 674     connect(m_ui, SIGNAL(loginActionPressed()),
 675             this, SLOT(loginActionPressed()));
 676
 677     connect(m_ui, SIGNAL(saveUsername(QString)),
 678             m_facebookAuthenticator, SLOT(saveUsername(QString)));
 679
 680     connect(m_ui, SIGNAL(updateCredentials(QUrl)),
 681             m_facebookAuthenticator, SLOT(updateCredentials(QUrl)));
 682
 683     // signals from map view
 684     connect(m_ui, SIGNAL(mapViewScrolled(SceneCoordinate)),
 685             m_mapEngine, SLOT(setCenterPosition(SceneCoordinate)));
 686
 687     connect(m_ui, SIGNAL(mapViewResized(QSize)),
 688             m_mapEngine, SLOT(viewResized(QSize)));
 689
 690     connect(m_ui, SIGNAL(viewZoomFinished()),
 691             m_mapEngine, SLOT(viewZoomFinished()));
 692
 693     // signals from zoom buttons (zoom panel and volume buttons)
 694     connect(m_ui, SIGNAL(zoomIn()),
 695             m_mapEngine, SLOT(zoomIn()));
 696
 697     connect(m_ui, SIGNAL(zoomOut()),
 698             m_mapEngine, SLOT(zoomOut()));
 699
 700     // signals from menu buttons
 701     connect(m_ui, SIGNAL(gpsTriggered(bool)),
 702             this, SLOT(setGPS(bool)));
 703
 704     //signals from dialogs
 705     connect(m_ui, SIGNAL(cancelLoginProcess()),
 706             this, SLOT(loginProcessCancelled()));
 707
 708     connect(m_ui, SIGNAL(requestReverseGeo()),
 709             this, SLOT(requestAddress()));
 710
 711     connect(m_ui, SIGNAL(statusUpdate(QString,bool)),
 712             this, SLOT(requestUpdateLocation(QString,bool)));
 713
 714     connect(m_ui, SIGNAL(enableAutomaticLocationUpdate(bool, int)),
 715             this, SLOT(enableAutomaticLocationUpdate(bool, int)));
 716
 717     // signals from user info tab
 718     connect(m_ui, SIGNAL(refreshUserData()),
 719             this, SLOT(refreshUserData()));
 720
 721     connect(m_ui, SIGNAL(centerToCoordinates(GeoCoordinate)),
 722             m_mapEngine, SLOT(centerToCoordinates(GeoCoordinate)));
 723
 724     // routing signal from friend list tab & search location tab
 725     connect(m_ui, SIGNAL(routeTo(const GeoCoordinate&)),
 726             this, SLOT(routeTo(const GeoCoordinate&)));
 727
 728     // signals from location search panel
 729     connect(m_ui,
 730             SIGNAL(locationItemClicked(const GeoCoordinate&, const GeoCoordinate&)),
 731             m_mapEngine,
 732             SLOT(showMapArea(const GeoCoordinate&, const GeoCoordinate&)));
 733
 734     connect(m_ui, SIGNAL(searchHistoryItemClicked(QString)),
 735             this, SLOT(locationSearch(QString)));
 736
 737     // signals from routing tab
 738     connect(m_ui, SIGNAL(clearRoute()),
 739             m_mapEngine, SLOT(clearRoute()));
 740
 741     connect(m_ui, SIGNAL(routeToCursor()),
 742             this, SLOT(routeToCursor()));
 743
 744     // signals from distance indicator button
 745     connect(m_ui, SIGNAL(autoCenteringTriggered(bool)),
 746             this, SLOT(changeAutoCenteringSetting(bool)));
 747
 748     connect(m_ui, SIGNAL(draggingModeTriggered()),
 749             this, SLOT(draggingModeTriggered()));
 750
 751     // signal from search location dialog
 752     connect(m_ui, SIGNAL(searchForLocation(QString)),
 753             this, SLOT(locationSearch(QString)));
 754
 755     // signal from friend list panel
 756     connect(m_ui, SIGNAL(requestContactDialog(const QString &)),
 757             this, SLOT(showContactDialog(const QString &)));
 758 }
 759
 760 void SituareEngine::signalsFromMapEngine()
 761 {
 762     qDebug() << __PRETTY_FUNCTION__;
 763
 764     connect(m_mapEngine, SIGNAL(error(int, int)),
 765             this, SLOT(error(int, int)));
 766
 767     connect(m_mapEngine, SIGNAL(locationChanged(SceneCoordinate)),
 768             m_ui, SIGNAL(centerToSceneCoordinates(SceneCoordinate)));
 769
 770     connect(m_mapEngine, SIGNAL(zoomLevelChanged(int)),
 771             m_ui, SIGNAL(zoomLevelChanged(int)));
 772
 773     connect(m_mapEngine, SIGNAL(mapScrolledManually()),
 774             this, SLOT(disableAutoCentering()));
 775
 776     connect(m_mapEngine, SIGNAL(maxZoomLevelReached()),
 777             m_ui, SIGNAL(maxZoomLevelReached()));
 778
 779     connect(m_mapEngine, SIGNAL(minZoomLevelReached()),
 780             m_ui, SIGNAL(minZoomLevelReached()));
 781
 782     connect(m_mapEngine, SIGNAL(locationItemClicked(QList<QString>)),
 783             m_ui, SIGNAL(locationItemClicked(QList<QString>)));
 784
 785     connect(m_mapEngine, SIGNAL(newMapResolution(qreal)),
 786             m_ui, SIGNAL(newMapResolution(qreal)));
 787
 788     connect(m_mapEngine, SIGNAL(directionIndicatorValuesUpdate(qreal, qreal, bool)),
 789             m_ui, SIGNAL(directionIndicatorValuesUpdate(qreal, qreal, bool)));
 790 }
 791
 792 void SituareEngine::signalsFromRoutingService()
 793 {
 794     qDebug() << __PRETTY_FUNCTION__;
 795
 796     connect(m_routingService, SIGNAL(routeParsed(Route&)),
 797             this, SLOT(routeParsed(Route&)));
 798
 799     connect(m_routingService, SIGNAL(routeParsed(Route&)),
 800             m_mapEngine, SLOT(setRoute(Route&)));
 801
 802     connect(m_routingService, SIGNAL(routeParsed(Route&)),
 803             m_ui, SIGNAL(routeParsed(Route&)));
 804
 805     connect(m_routingService, SIGNAL(error(int, int)),
 806             this, SLOT(error(int, int)));
 807 }
 808
 809 void SituareEngine::signalsFromSituareService()
 810 {
 811     qDebug() << __PRETTY_FUNCTION__;
 812
 813     connect(m_situareService, SIGNAL(error(int, int)),
 814             this, SLOT(error(int, int)));
 815
 816     connect(m_situareService, SIGNAL(imageReady(User*)),
 817             this, SLOT(imageReady(User*)));
 818
 819     connect(m_situareService, SIGNAL(reverseGeoReady(QString)),
 820             m_ui, SIGNAL(reverseGeoReady(QString)));
 821
 822     connect(m_situareService, SIGNAL(userDataChanged(User*, QList<User*>&)),
 823             this, SLOT(userDataChanged(User*, QList<User*>&)));
 824
 825     connect(m_situareService, SIGNAL(updateWasSuccessful()),
 826             this, SLOT(updateWasSuccessful()));
 827
 828     connect(m_situareService, SIGNAL(updateWasSuccessful()),
 829             m_ui, SIGNAL(clearUpdateLocationDialogData()));
 830 }
 831
 832 void SituareEngine::startAutomaticUpdate()
 833 {
 834     qDebug() << __PRETTY_FUNCTION__;
 835
 836     m_gps->requestUpdate();
 837     m_automaticUpdateRequest = true;
 838 }
 839
 840 void SituareEngine::topmostWindowChanged(bool isMainWindow)
 841 {
 842     qDebug() << __PRETTY_FUNCTION__;
 843
 844     setPowerSaving(!isMainWindow);
 845 }
 846
 847 void SituareEngine::updateWasSuccessful()
 848 {
 849     qDebug() << __PRETTY_FUNCTION__;
 850
 851     if (m_networkAccessManager->isConnected())
 852         m_situareService->fetchLocations();
 853     else
 854         error(ErrorContext::NETWORK, QNetworkReply::UnknownNetworkError);
 855 }
 856
 857 void SituareEngine::userDataChanged(User *user, QList<User *> &friendsList)
 858 {
 859     qDebug() << __PRETTY_FUNCTION__;
 860
 861     m_ui->toggleProgressIndicator(false);
 862
 863     emit userLocationReady(user);
 864     emit friendsLocationsReady(friendsList);
 865 }