WebView: Prevent handling input events twice

This fixes site info being opened twice when pressing Ctrl+I while
having focus in webview.

This makes the input events handling code very fragile, so let's hope
this won't break anything .. and QtWebEngine won't change the behavior
in following releases.

src/lib/app/mainmenu.cpp

@@ -29,7 +29,6 @@
 #include "adblockmanager.h"
 #include "downloadmanager.h"
 #include "mainapplication.h"
-#include "browsinglibrary.h"
 #include "clearprivatedata.h"
 #include "qzsettings.h"
 

src/lib/network/schemehandlers/qupzillaschemehandler.cpp

@@ -269,7 +269,6 @@ QString QupZillaSchemeReply::speeddialPage()
 
     if (dPage.isEmpty()) {
         dPage.append(QzTools::readAllFileContents(":html/speeddial.html"));
-        dPage.replace(QLatin1String("%FAVICON%"), QLatin1String("qrc:icons/qupzilla.png"));
         dPage.replace(QLatin1String("%IMG_PLUS%"), QLatin1String("qrc:html/plus.png"));
         dPage.replace(QLatin1String("%IMG_CLOSE%"), QLatin1String("qrc:html/close.png"));
         dPage.replace(QLatin1String("%IMG_EDIT%"), QLatin1String("qrc:html/edit.png"));

src/lib/webengine/webview.cpp

@@ -1054,9 +1054,7 @@ void WebView::_keyPressEvent(QKeyEvent *event)
         return;
     }
 
-    int eventKey = event->key();
-
-    switch (eventKey) {
+    switch (event->key()) {
     case Qt::Key_ZoomIn:
         zoomIn();
         event->accept();
@@ -1183,5 +1181,21 @@ bool WebView::eventFilter(QObject *obj, QEvent *event)
         }
     }
 
+    // Block already handled events
+    if (obj == this) {
+        switch (event->type()) {
+        case QEvent::KeyPress:
+        case QEvent::KeyRelease:
+        case QEvent::MouseButtonPress:
+        case QEvent::MouseButtonRelease:
+        case QEvent::MouseMove:
+        case QEvent::Wheel:
+            return true;
+
+        default:
+            break;
+        }
+    }
+
     return QWebEngineView::eventFilter(obj, event);
 }