added dialog to add urls

lib/xcollection.cpp

@@ -17,6 +17,7 @@
 
 #include <QHash>
 #include <QString>
+#include <QUrl>
 
 XCollection::XCollection (XClient * client) : QObject ( client)
 {
@@ -162,3 +163,21 @@ XCollection::addIdlist (QString name) {
 
 	return true;
 }
+
+bool
+XCollection::playlistAddUrl (QUrl url, QString plsname)
+{
+	//TODO: more tests if file is valid
+	if (!url.isValid ()) {
+		return false;
+	}
+
+	if (plsname == "") {
+		plsname = m_activePlaylist;
+	}
+
+	m_client->playlist ()->addUrl (url.toString ().toStdString (),
+	                               plsname.toStdString ());
+
+	return true;
+}