class QPushButton;
class QLineEdit;
class QWebView;
+class QNetworkReply;
class DownloadManager;
class QDir;
void on_searchButton_clicked();
void on_searchResult(QWidget* resultWidget);
void on_loadFinished(bool ok);
+ void on_networkReplyFinished(QNetworkReply* reply);
void on_linkClicked(const QUrl& url);
void on_downloadFinished(QString filepath);