public class DefaultFocusHistory extends Object implements FocusHistory
FocusHistory
adds listeners to a
DockController
to keep the history up to date. Only Dockable
s that
are actually registered at the controller are reported in the historyConstructor and Description |
---|
DefaultFocusHistory() |
Modifier and Type | Method and Description |
---|---|
Dockable |
getFirst(Filter<Dockable> filter)
|
Dockable[] |
getHistory()
Gets an array containing all known
Dockable s which may have had the focus. |
Dockable |
getNewestOn(DockStation... parents)
Searches the one
Dockable that had the focus lately, and that is a child of one
of parent . |
void |
setController(DockController controller) |
public void setController(DockController controller)
public Dockable[] getHistory()
FocusHistory
Dockable
s which may have had the focus. The first element in the array
did not have the focus for the longest time, while the last element in the array is the element that
may have the focus right now.Dockable
s that were never focused, these items will always be at the beginning of
the array.getHistory
in interface FocusHistory
public Dockable getNewestOn(DockStation... parents)
FocusHistory
Dockable
that had the focus lately, and that is a child of one
of parent
.getNewestOn
in interface FocusHistory
parents
- the stations whose child is searchedDockable
that had the focus and which is a child of one of the parents, or
null
if no such Dockable
can be foundpublic Dockable getFirst(Filter<Dockable> filter)
FocusHistory
getFirst
in interface FocusHistory
filter
- the filter to apply, not null
Dockable
having focus and matching filter
, or null