Little improvements in guessing download file info + in websearchbar.

- guessing file type and icon should now be more accurate
- when changing search engine in web searchbar and text in it
  is not empty, it will automatically load search results.

src/downloads/downloadfilehelper.cpp

@@ -56,9 +56,10 @@ void DownloadFileHelper::handleUnsupportedContent(QNetworkReply* reply, bool ask
     m_h_fileName = getFileName(reply);
     m_reply = reply;
 
-    QFileInfo info(reply->url().toString());
+    QFileInfo info(m_h_fileName);
     QTemporaryFile tempFile("XXXXXX." + info.suffix());
     tempFile.open();
+    tempFile.write(m_reply->peek(1024 * 1024));
     QFileInfo tempInfo(tempFile.fileName());
     m_fileIcon = m_iconProvider->icon(tempInfo).pixmap(30, 30);
     QString mimeType = m_iconProvider->type(tempInfo);

src/navigation/websearchbar.cpp

@@ -139,6 +139,10 @@ void WebSearchBar::searchChanged(const ButtonWithMenu::Item &item)
     m_openSearchEngine->setSuggestionsParameters(m_activeEngine.suggestionsParameters);
 
     m_searchManager->setActiveEngine(m_activeEngine);
+
+    if (!text().isEmpty()) {
+        search();
+    }
 }
 
 void WebSearchBar::search()