webview.cpp Example File | Qt WebEngine 5.9

Qt 5.9 | Qt WebEngine | WebEngine Widgets Spellchecker Example | webview.cpp Example File

Qt 5.9.9 Reference Documentation

# webview.cpp Example File

webenginewidgets/spellchecker/webview.cpp

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      #include "webview.h"
      #include <QContextMenuEvent>
      #include <QMenu>
      #include <QWebEngineProfile>
      #include <QWebEngineContextMenuData>

      WebView::WebView(QWidget *parent)
          : QWebEngineView(parent)
      {
          m_spellCheckLanguages["English"] = "en-US";
          m_spellCheckLanguages["German"] = "de-DE";
          QWebEngineProfile *profile = page()->profile();
          profile->setSpellCheckEnabled(true);
          profile->setSpellCheckLanguages({"en-US"});
      }

      void WebView::contextMenuEvent(QContextMenuEvent *event)
      {
          const QWebEngineContextMenuData &data = page()->contextMenuData();
          Q_ASSERT(data.isValid());

          if (!data.isContentEditable()) {
              QWebEngineView::contextMenuEvent(event);
              return;
          }

          QWebEngineProfile *profile = page()->profile();
          const QStringList &languages = profile->spellCheckLanguages();
          QMenu *menu = page()->createStandardContextMenu();
          menu->addSeparator();

          QAction *spellcheckAction = new QAction(tr("Check Spelling"), nullptr);
          spellcheckAction->setCheckable(true);
          spellcheckAction->setChecked(profile->isSpellCheckEnabled());
          connect(spellcheckAction, &QAction::toggled, this, [profile](bool toogled) {
              profile->setSpellCheckEnabled(toogled);
          });
          menu->addAction(spellcheckAction);

          if (profile->isSpellCheckEnabled()) {
              QMenu *subMenu = menu->addMenu(tr("Select Language"));
              foreach (const QString &str, m_spellCheckLanguages.keys()) {
                  QAction *action = subMenu->addAction(str);
                  action->setCheckable(true);
                  QString lang = m_spellCheckLanguages[str];
                  action->setChecked(languages.contains(lang));
                  connect(action, &QAction::triggered, this, [profile, lang](){
                     profile->setSpellCheckLanguages(QStringList()<<lang);
                  });
              }
          }
          connect(menu, &QMenu::aboutToHide, menu, &QObject::deleteLater);
          menu->popup(event->globalPos());
      }