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"));
         const QStringList keys = m_spellCheckLanguages.keys();
         for (const QString &str : 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());
 }