Fix imageprovider.

matrix/imageproviderconnection.h

@@ -0,0 +1,29 @@
+#ifndef IMAGEPROVIDERCONNECTION_H
+#define IMAGEPROVIDERCONNECTION_H
+
+#include <QObject>
+
+#include "libqmatrixclient/connection.h"
+
+class ImageProviderConnection : public QObject
+{
+    Q_OBJECT
+
+    Q_PROPERTY(QMatrixClient::Connection* connection READ getConnection WRITE setConnection NOTIFY connectionChanged)
+
+    public:
+        explicit ImageProviderConnection(QObject* parent = nullptr);
+        ~ImageProviderConnection();
+
+        QMatrixClient::Connection* getConnection() { return m_connection; }
+        void setConnection(QMatrixClient::Connection* connection) {
+            emit connectionChanged();
+            m_connection = connection;
+        }
+    private:
+        QMatrixClient::Connection* m_connection;
+    signals:
+        void connectionChanged();
+};
+
+#endif // IMAGEPROVIDERCONNECTION_H