From a845e7230b409a5612ba600d115b3568194ba2ec Mon Sep 17 00:00:00 2001
From: Jonathan Bauer
Date: Mon, 24 Jan 2011 14:33:43 +0100
Subject: Made a slot to listen to readyRead() from our QNetworkReply object,
 to see if the URL actually has data...

---
 fbbrowser/fbbrowser     | Bin 524912 -> 529673 bytes
 fbbrowser/fbbrowser.cpp |  22 ++++++++++++++--------
 fbbrowser/fbbrowser.h   |   1 +
 3 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/fbbrowser/fbbrowser b/fbbrowser/fbbrowser
index a0710ed..4a622f9 100755
Binary files a/fbbrowser/fbbrowser and b/fbbrowser/fbbrowser differ
diff --git a/fbbrowser/fbbrowser.cpp b/fbbrowser/fbbrowser.cpp
index 3844f66..bef6aca 100644
--- a/fbbrowser/fbbrowser.cpp
+++ b/fbbrowser/fbbrowser.cpp
@@ -3,37 +3,43 @@
 #include <QtWebKit>
 #include <QApplication>
 
+void fbbrowser::httpReadyRead()
+{
+	// This slot listens to readyRead() signal from our QNetworkReply.
+	qDebug() << "readyRead() signal emmited!" << endl;
+}
 
 fbbrowser::fbbrowser(const QUrl & url)
 {
-
-
 	view = new QWebView(this);
 
-	// Check Internet connection
 	// Create QNetworkAccessManager which is needed to send/receive requests.
 	manager = new QNetworkAccessManager(this);
 	// Create a QNetworkRequest object and set its URL.
 	QNetworkRequest request;
 	request.setUrl(url);
 
+	// Check Internet connection
 	// Let the manager send the request and receive the reply.
 	QNetworkReply *reply = manager->get(request);
-	//connect(reply, SIGNAL(error()), this, SLOT());
+	connect(reply, SIGNAL(readyRead()), this, SLOT(httpReadyRead()));
 	//connect(reply, SIGNAL(finished()), this, SLOT());
 
 	// Check if the reply is an error message.
-	qDebug() << reply->error();
+	qDebug() << "QNetworkReply error code: " << reply->error();
 
-	//TODO: error differentiation
+	// TODO: error differentiation
+        // reply->error() returns 0 even for invalid URL.
+        // A possibility to check for validity, is to listen to readyRead()
+        // signal, haven't found a better way yet ...
 	if(reply->error() == QNetworkReply::NoError)
 	{
-		qDebug() << "show Page";
+		qDebug() << "No error, loading given URL...";
 		view->load(url);
 	}
 	else 
 	{
-		qDebug() << "show errorPage";
+		qDebug() << "Error occured, loading error page...";
 		view->load(QUrl("qrc:/html/errorPage.html"));
 	}
 
diff --git a/fbbrowser/fbbrowser.h b/fbbrowser/fbbrowser.h
index 5e5dd23..9e06512 100644
--- a/fbbrowser/fbbrowser.h
+++ b/fbbrowser/fbbrowser.h
@@ -27,6 +27,7 @@ private:
     //QApplication * app(int & argc, char ** argv);
 
 private slots:
+        void httpReadyRead();
 	void addJSObject();
 
 signals:
-- 
cgit v1.2.3-55-g7522