Emit url blocked (we will used it in remote-content support)

messageviewer/src/viewer/webengine/loadexternalreferencesurlinterceptor/loadexternalreferencesurlinterceptor.cpp

@@ -29,6 +29,7 @@ bool LoadExternalReferencesUrlInterceptor::interceptRequest(QWebEngineUrlRequest
         return false;
     } else {
         if (info.resourceType() == QWebEngineUrlRequestInfo::ResourceTypeImage && !info.requestUrl().isLocalFile() && (scheme != QLatin1String("cid"))) {
+            Q_EMIT urlBlocked(info.requestUrl());
             return true;
         } else if (info.resourceType() == QWebEngineUrlRequestInfo::ResourceTypeFontResource) {
             return true;

messageviewer/src/viewer/webengine/loadexternalreferencesurlinterceptor/loadexternalreferencesurlinterceptor.h

@@ -21,6 +21,9 @@ public:
     void setAllowExternalContent(bool b);
     Q_REQUIRED_RESULT bool allowExternalContent() const;
 
+Q_SIGNALS:
+    void urlBlocked(const QUrl &url);
+
 private:
     bool mAllowLoadExternalReference = false;
 };