An Ext.Panel with some defaults that better lend themselves toward use as a quick query to get a service URL from a user.
Configuration properties in addition to those listed for Ext.Panel.
String Text for add server button (i18n).
A callback function to be called when the user submits the form in the NewSourceDialog.
TODO this can probably be extracted to an event handler
The default bodyStyle sets the padding to 0px
String Text for cancel button (i18n).
String Text for server contact (i18n).
String Message to display when an invalid URL is entered (i18n).
String Dialog title (i18n).
Public properties in addition to those listed for Ext.Panel.
String The error message set (for example, when adding the source failed)