Qt Documentation (Technology Preview) | Qt Network Authorization | Twitter Timeline Example | main.cpp Example File

Qt 5.9.3 Reference Documentation

# main.cpp Example File

twittertimeline/main.cpp

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      #include "ui_twitterdialog.h"
      #include "twittertimelinemodel.h"

      #include <functional>

      #include <QUrl>
      #include <QApplication>
      #include <QNetworkReply>
      #include <QNetworkRequest>
      #include <QCommandLineParser>
      #include <QCommandLineOption>

      int main(int argc, char **argv)
      {
          QApplication app(argc, argv);

          app.setApplicationName("Twitter Timeline");
          app.setApplicationDisplayName("Twitter Timeline");
          app.setOrganizationDomain("qt.io");
          app.setOrganizationName("The Qt Company");

          QCommandLineParser parser;
          QCommandLineOption token(QStringList() << "k" << "consumer-key",
                                   "Application consumer key", "key");
          QCommandLineOption secret(QStringList() << "s" << "consumer-secret",
                                    "Application consumer secret", "secret");
          QCommandLineOption connect(QStringList() << "c" << "connect",
                                     "Connects to twitter. Requires consumer-key and consumer-secret");

          parser.addOptions({ token, secret, connect });
          parser.process(app);

          struct TwitterDialog : QDialog, Ui::TwitterDialog {
              TwitterTimelineModel model;

              TwitterDialog()
                  : QDialog()
              {
                  setupUi(this);
                  view->setModel(&model);
                  view->horizontalHeader()->hideSection(0);
                  view->horizontalHeader()->hideSection(1);
              }
          } twitterDialog;

          const auto authenticate = [&]() {
              const auto clientIdentifier = twitterDialog.clientIdLineEdit->text();
              const auto clientSharedSecret = twitterDialog.clientSecretLineEdit->text();
              twitterDialog.model.authenticate(qMakePair(clientIdentifier, clientSharedSecret));
          };
          const auto buttonSlot = [&]() {
              if (twitterDialog.model.status() == Twitter::Status::Granted)
                  twitterDialog.model.updateTimeline();
              else
                  authenticate();
          };

          twitterDialog.clientIdLineEdit->setText(parser.value(token));
          twitterDialog.clientSecretLineEdit->setText(parser.value(secret));
          if (parser.isSet(connect)) {
              if (parser.value(token).isEmpty() || parser.value(secret).isEmpty()) {
                  parser.showHelp();
              } else {
                  authenticate();
                  twitterDialog.view->setFocus();
              }
          }

          QObject::connect(twitterDialog.pushButton, &QPushButton::clicked, buttonSlot);
          QObject::connect(&twitterDialog.model, &TwitterTimelineModel::authenticated,
                           std::bind(&QPushButton::setText, twitterDialog.pushButton, "&Update"));

          twitterDialog.show();
          return app.exec();
      }