Initializes this service. Must be called on the UI thread, and may only
be called once. The given viewer's control must not be disposed.
The given listener will be notified of changes to the result of
INavigatorSaveablesService.getSaveables() and to the dirty state of those saveables. The
given source will be used as the event source for these event
notifications.
The given viewer's selection will be used by
INavigatorSaveablesService.getActiveSaveables() to determine the active saveables. The
active saveables are determined by iterating over the current selection,
and for each element, walking up its parent chain until an element
representing a saveable is found, or a root element is reached.
Parameters: source - Parameters: viewer - Parameters: listener - |