settings.cpp Example File

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  #include "settings.h"

  #include "browserapplication.h"
  #include "browsermainwindow.h"
  #if defined(QWEBENGINEPAGE_SETNETWORKACCESSMANAGER)
  #include "cookiejar.h"
  #endif
  #include "history.h"
  #include "webview.h"

  #include <QtCore/QLocale>
  #include <QtCore/QSettings>
  #include <QtWidgets/QtWidgets>
  #include <QtWebEngineWidgets/QtWebEngineWidgets>

  SettingsDialog::SettingsDialog(QWidget *parent)
      : QDialog(parent)
  {
      setupUi(this);
      connect(setHomeToCurrentPageButton, SIGNAL(clicked()), this, SLOT(setHomeToCurrentPage()));
      connect(standardFontButton, SIGNAL(clicked()), this, SLOT(chooseFont()));
      connect(fixedFontButton, SIGNAL(clicked()), this, SLOT(chooseFixedFont()));

      loadDefaults();
      loadFromSettings();
  }

  static QString defaultAcceptLanguage()
  {
      const QStringList langs = QLocale().uiLanguages();
      if (langs.isEmpty())
          return QString();
      QString str = langs.first();
      const float qstep = 1.0f / float(langs.count());
      float q = 1.0f - qstep;
      for (int i = 1; i < langs.count(); ++i) {
          str += QStringLiteral(", ") + langs.at(i) + QStringLiteral(";q=") + QString::number(q, 'f', 2);
          q -= qstep;
      }
      return str;
  }

  void SettingsDialog::loadDefaults()
  {
      QWebEngineSettings *defaultSettings = QWebEngineSettings::globalSettings();
      QString standardFontFamily = defaultSettings->fontFamily(QWebEngineSettings::StandardFont);
      int standardFontSize = defaultSettings->fontSize(QWebEngineSettings::DefaultFontSize);
      standardFont = QFont(standardFontFamily, standardFontSize);
      standardLabel->setText(QString(QLatin1String("%1 %2")).arg(standardFont.family()).arg(standardFont.pointSize()));

      QString fixedFontFamily = defaultSettings->fontFamily(QWebEngineSettings::FixedFont);
      int fixedFontSize = defaultSettings->fontSize(QWebEngineSettings::DefaultFixedFontSize);
      fixedFont = QFont(fixedFontFamily, fixedFontSize);
      fixedLabel->setText(QString(QLatin1String("%1 %2")).arg(fixedFont.family()).arg(fixedFont.pointSize()));

      downloadsLocation->setText(QStandardPaths::writableLocation(QStandardPaths::DesktopLocation));

      enableJavascript->setChecked(defaultSettings->testAttribute(QWebEngineSettings::JavascriptEnabled));
      enablePlugins->setChecked(defaultSettings->testAttribute(QWebEngineSettings::PluginsEnabled));

      enableScrollAnimator->setChecked(defaultSettings->testAttribute(QWebEngineSettings::ScrollAnimatorEnabled));

      persistentDataPath->setText(QWebEngineProfile::defaultProfile()->persistentStoragePath());
      sessionCookiesCombo->setCurrentIndex(QWebEngineProfile::defaultProfile()->persistentCookiesPolicy());
      httpUserAgent->setText(QWebEngineProfile::defaultProfile()->httpUserAgent());
      httpAcceptLanguage->setText(defaultAcceptLanguage());

      if (!defaultSettings->testAttribute(QWebEngineSettings::AutoLoadIconsForPage))
          faviconDownloadMode->setCurrentIndex(0);
      else if (!defaultSettings->testAttribute(QWebEngineSettings::TouchIconsEnabled))
          faviconDownloadMode->setCurrentIndex(1);
      else
          faviconDownloadMode->setCurrentIndex(2);
  }

  void SettingsDialog::loadFromSettings()
  {
      QSettings settings;
      settings.beginGroup(QLatin1String("MainWindow"));
      const QString defaultHome = QLatin1String(BrowserMainWindow::defaultHome);
      homeLineEdit->setText(settings.value(QLatin1String("home"), defaultHome).toString());
      settings.endGroup();

      settings.beginGroup(QLatin1String("history"));
      int historyExpire = settings.value(QLatin1String("historyExpire")).toInt();
      int idx = 0;
      switch (historyExpire) {
      case 1: idx = 0; break;
      case 7: idx = 1; break;
      case 14: idx = 2; break;
      case 30: idx = 3; break;
      case 365: idx = 4; break;
      case -1: idx = 5; break;
      default:
          idx = 5;
      }
      expireHistory->setCurrentIndex(idx);
      settings.endGroup();

      settings.beginGroup(QLatin1String("downloadmanager"));
      QString downloadDirectory = settings.value(QLatin1String("downloadDirectory"), downloadsLocation->text()).toString();
      downloadsLocation->setText(downloadDirectory);
      settings.endGroup();

      settings.beginGroup(QLatin1String("general"));
      openLinksIn->setCurrentIndex(settings.value(QLatin1String("openLinksIn"), openLinksIn->currentIndex()).toInt());

      settings.endGroup();

      // Appearance
      settings.beginGroup(QLatin1String("websettings"));
      fixedFont = qvariant_cast<QFont>(settings.value(QLatin1String("fixedFont"), fixedFont));
      standardFont = qvariant_cast<QFont>(settings.value(QLatin1String("standardFont"), standardFont));

      standardLabel->setText(QString(QLatin1String("%1 %2")).arg(standardFont.family()).arg(standardFont.pointSize()));
      fixedLabel->setText(QString(QLatin1String("%1 %2")).arg(fixedFont.family()).arg(fixedFont.pointSize()));

      enableJavascript->setChecked(settings.value(QLatin1String("enableJavascript"), enableJavascript->isChecked()).toBool());
      enablePlugins->setChecked(settings.value(QLatin1String("enablePlugins"), enablePlugins->isChecked()).toBool());
      userStyleSheet->setPlainText(settings.value(QLatin1String("userStyleSheet")).toString());
      enableScrollAnimator->setChecked(settings.value(QLatin1String("enableScrollAnimator"), enableScrollAnimator->isChecked()).toBool());
      httpUserAgent->setText(settings.value(QLatin1String("httpUserAgent"), httpUserAgent->text()).toString());
      httpAcceptLanguage->setText(settings.value(QLatin1String("httpAcceptLanguage"), httpAcceptLanguage->text()).toString());
      faviconDownloadMode->setCurrentIndex(settings.value(QLatin1String("faviconDownloadMode"), faviconDownloadMode->currentIndex()).toInt());
      settings.endGroup();

      // Privacy
      settings.beginGroup(QLatin1String("cookies"));

      int persistentCookiesPolicy = settings.value(QLatin1String("persistentCookiesPolicy"), sessionCookiesCombo->currentIndex()).toInt();
      sessionCookiesCombo->setCurrentIndex(persistentCookiesPolicy);

      QString pdataPath = settings.value(QLatin1String("persistentDataPath"), persistentDataPath->text()).toString();
      persistentDataPath->setText(pdataPath);

      settings.endGroup();

      // Proxy
      settings.beginGroup(QLatin1String("proxy"));
      proxySupport->setChecked(settings.value(QLatin1String("enabled"), false).toBool());
      proxyType->setCurrentIndex(settings.value(QLatin1String("type"), 0).toInt());
      proxyHostName->setText(settings.value(QLatin1String("hostName")).toString());
      proxyPort->setValue(settings.value(QLatin1String("port"), 1080).toInt());
      proxyUserName->setText(settings.value(QLatin1String("userName")).toString());
      proxyPassword->setText(settings.value(QLatin1String("password")).toString());
      settings.endGroup();
  }

  void SettingsDialog::saveToSettings()
  {
      QSettings settings;
      settings.beginGroup(QLatin1String("MainWindow"));
      settings.setValue(QLatin1String("home"), homeLineEdit->text());
      settings.endGroup();

      settings.beginGroup(QLatin1String("general"));
      settings.setValue(QLatin1String("openLinksIn"), openLinksIn->currentIndex());
      settings.endGroup();

      settings.beginGroup(QLatin1String("history"));
      int historyExpire = expireHistory->currentIndex();
      int idx = -1;
      switch (historyExpire) {
      case 0: idx = 1; break;
      case 1: idx = 7; break;
      case 2: idx = 14; break;
      case 3: idx = 30; break;
      case 4: idx = 365; break;
      case 5: idx = -1; break;
      }
      settings.setValue(QLatin1String("historyExpire"), idx);
      settings.endGroup();

      // Appearance
      settings.beginGroup(QLatin1String("websettings"));
      settings.setValue(QLatin1String("fixedFont"), fixedFont);
      settings.setValue(QLatin1String("standardFont"), standardFont);
      settings.setValue(QLatin1String("enableJavascript"), enableJavascript->isChecked());
      settings.setValue(QLatin1String("enablePlugins"), enablePlugins->isChecked());
      settings.setValue(QLatin1String("enableScrollAnimator"), enableScrollAnimator->isChecked());
      settings.setValue(QLatin1String("userStyleSheet"), userStyleSheet->toPlainText());
      settings.setValue(QLatin1String("httpUserAgent"), httpUserAgent->text());
      settings.setValue(QLatin1String("httpAcceptLanguage"), httpAcceptLanguage->text());
      settings.setValue(QLatin1String("faviconDownloadMode"), faviconDownloadMode->currentIndex());
      settings.endGroup();

      //Privacy
      settings.beginGroup(QLatin1String("cookies"));

      int persistentCookiesPolicy = sessionCookiesCombo->currentIndex();
      settings.setValue(QLatin1String("persistentCookiesPolicy"), persistentCookiesPolicy);

      QString pdataPath = persistentDataPath->text();
      settings.setValue(QLatin1String("persistentDataPath"), pdataPath);

      settings.endGroup();

      // proxy
      settings.beginGroup(QLatin1String("proxy"));
      settings.setValue(QLatin1String("enabled"), proxySupport->isChecked());
      settings.setValue(QLatin1String("type"), proxyType->currentIndex());
      settings.setValue(QLatin1String("hostName"), proxyHostName->text());
      settings.setValue(QLatin1String("port"), proxyPort->text());
      settings.setValue(QLatin1String("userName"), proxyUserName->text());
      settings.setValue(QLatin1String("password"), proxyPassword->text());
      settings.endGroup();

      BrowserApplication::instance()->loadSettings();
  #if defined(QWEBENGINEPAGE_SETNETWORKACCESSMANAGER)
      BrowserApplication::cookieJar()->loadSettings();
  #endif
      BrowserApplication::historyManager()->loadSettings();
  }

  void SettingsDialog::accept()
  {
      saveToSettings();
      QDialog::accept();
  }

  void SettingsDialog::showCookies()
  {
  #if defined(QWEBENGINEPAGE_SETNETWORKACCESSMANAGER)
      CookiesDialog *dialog = new CookiesDialog(BrowserApplication::cookieJar(), this);
      dialog->exec();
  #endif
  }

  void SettingsDialog::showExceptions()
  {
  #if defined(QWEBENGINEPAGE_SETNETWORKACCESSMANAGER)
      CookiesExceptionsDialog *dialog = new CookiesExceptionsDialog(BrowserApplication::cookieJar(), this);
      dialog->exec();
  #endif
  }

  void SettingsDialog::chooseFont()
  {
      bool ok;
      QFont font = QFontDialog::getFont(&ok, standardFont, this);
      if ( ok ) {
          standardFont = font;
          standardLabel->setText(QString(QLatin1String("%1 %2")).arg(font.family()).arg(font.pointSize()));
      }
  }

  void SettingsDialog::chooseFixedFont()
  {
      bool ok;
      QFont font = QFontDialog::getFont(&ok, fixedFont, this);
      if ( ok ) {
          fixedFont = font;
          fixedLabel->setText(QString(QLatin1String("%1 %2")).arg(font.family()).arg(font.pointSize()));
      }
  }

  void SettingsDialog::on_httpUserAgent_editingFinished()
  {
      QWebEngineProfile::defaultProfile()->setHttpUserAgent(httpUserAgent->text());
  }

  void SettingsDialog::on_httpAcceptLanguage_editingFinished()
  {
      QWebEngineProfile::defaultProfile()->setHttpAcceptLanguage(httpAcceptLanguage->text());
  }

  void SettingsDialog::setHomeToCurrentPage()
  {
      BrowserMainWindow *mw = static_cast<BrowserMainWindow*>(parent());
      WebView *webView = mw->currentTab();
      if (webView)
          homeLineEdit->setText(webView->url().toString());
  }