public interface ISystemAddFileListener
This is an interface used by the actions SystemSelectRemoteFileAction and SystemSelectRemoteFolderAction
actions classes (and the dialog and form used by these) and enable the dialog's OK button to
be replaced with an Add button. When the user selects and object or presses Add, the caller
is informed and able to display a resulting message in the dialog's message line,and affect
the enabled state of the Add button.
If you call the enableAddButton method you must pass an object that implements this interface.
The dialog will call you back when the user presses the Add button, so you can take
- The user has pressed the Add button.
Do something appropriate with the request.
If this action fails for some reason, or you wish to display a completion
message, return message text that will be displayed in the dialog's message
line. Else, return null.
- The user has selected a file or folder. Is this valid to be added?
If so, return null. If not, return a string to display on the
message line indicating why it is not valid, such as it already has
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