emit signals before and after QgsNetworkAccessManager creates requests

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@13453 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: jef

python/core/qgsnetworkaccessmanager.sip

@@ -50,6 +50,13 @@ class QgsNetworkAccessManager : QNetworkAccessManager
 
     //! set fallback proxy and URL that shouldn't use it.
     void setFallbackProxyAndExcludes( const QNetworkProxy &proxy, const QStringList &excludes );
+
+  signals:
+    void requestAboutToBeCreated( Operation, const QNetworkRequest &, QIODevice * );
+    void requestCreated( QNetworkReply * );
+
+  protected:
+    virtual QNetworkReply *createRequest( Operation op, const QNetworkRequest & req, QIODevice * outgoingData = 0 );
 
   private:
     QgsNetworkAccessManager( QObject * );

src/core/qgsnetworkaccessmanager.cpp

@@ -121,3 +121,11 @@ void QgsNetworkAccessManager::setFallbackProxyAndExcludes( const QNetworkProxy &
   mFallbackProxy = proxy;
   mExcludedURLs = excludes;
 }
+
+QNetworkReply *QgsNetworkAccessManager::createRequest( QgsNetworkAccessManager::Operation op, const QNetworkRequest &req, QIODevice *outgoingData )
+{
+  emit requestAboutToBeCreated( op, req, outgoingData );
+  QNetworkReply *reply = QNetworkAccessManager::createRequest( op, req, outgoingData );
+  emit requestCreated( reply );
+  return reply;
+}

src/core/qgsnetworkaccessmanager.h

@@ -73,6 +73,13 @@ class CORE_EXPORT QgsNetworkAccessManager : public QNetworkAccessManager
     //! set fallback proxy and URL that shouldn't use it.
     void setFallbackProxyAndExcludes( const QNetworkProxy &proxy, const QStringList &excludes );
 
+  signals:
+    void requestAboutToBeCreated( Operation, const QNetworkRequest &, QIODevice * );
+    void requestCreated( QNetworkReply * );
+
+  protected:
+    virtual QNetworkReply *createRequest( Operation op, const QNetworkRequest & req, QIODevice * outgoingData = 0 );
+
   private:
     QgsNetworkAccessManager( QObject *parent = 0 );
 #if QT_VERSION >= 0x40500