Add method to cleanup link markers

This is mostly for testing purposes; we need to clear them on scroll,
move, and other things that cause trouble

src/lib/webengine/webpage.cpp

@@ -707,6 +707,11 @@ void WebPage::getLinkMarkers() {
     runJavaScript("Marker.generateMarker('a, input, button, [class*=\"btn\"], [aria-haspopup], [role=\"button\"], textarea, select, summary, [class=\"gap\"], [ng-click]')");
 }
 
+void WebPage::clearLinkMarkers() {
+    runJavaScript("document.querySelector('.eaf-marker-container').remove();");
+    runJavaScript("document.querySelector('.eaf-style').remove();");
+}
+
 QWebEnginePage* WebPage::createWindow(QWebEnginePage::WebWindowType type)
 {
     TabbedWebView *tView = qobject_cast<TabbedWebView*>(view());

src/lib/webengine/webpage.h

@@ -77,6 +77,7 @@ public:
     static void removeSupportedScheme(const QString &scheme);
 
     void getLinkMarkers();
+    void clearLinkMarkers();
 
 Q_SIGNALS:
     void privacyChanged(bool status);

src/lib/webengine/webview.cpp

@@ -60,6 +60,7 @@ WebView::WebView(QWidget* parent)
     , m_backgroundActivity(false)
     , m_page(0)
     , m_firstLoad(false)
+    , m_followLink(false)
 {
     connect(this, &QWebEngineView::loadStarted, this, &WebView::slotLoadStarted);
     connect(this, &QWebEngineView::loadProgress, this, &WebView::slotLoadProgress);
@@ -1208,7 +1209,13 @@ void WebView::_keyReleaseEvent(QKeyEvent *event)
         }
         break;
     case Qt::Key_F:
-        page()->getLinkMarkers();
+        if (!m_followLink) {
+            page()->getLinkMarkers();
+            m_followLink = true;
+        } else {
+            page()->clearLinkMarkers();
+            m_followLink = false;
+        }
         event->accept();
     default:
         break;

src/lib/webengine/webview.h

@@ -188,6 +188,7 @@ private:
 
     WebPage* m_page;
     bool m_firstLoad;
+    bool m_followLink;
 
     QPointer<QWidget> m_rwhvqt;
     WheelHelper m_wheelHelper;