public class WeightedController extends java.lang.Object implements Controller
Modifier and Type | Field and Description |
---|---|
static Controller |
NOOP_CONTROLLER
A generic controller that disables the action and does nothing to handle it.
|
static Controller |
USE_ACTIVE_VIEW_CONTROLLER
A generic controller that redirects to the active view.
|
UPDATE_FROM_ACTION_PERFORMED, UPDATE_FROM_ACTIVE_VIEW_CHANGED, UPDATE_FROM_UNDO, UPDATE_FROM_USER_EXTENSION, UPDATE_FROM_VIEW_SELECTION_CHANGED
Constructor and Description |
---|
WeightedController() |
WeightedController(Controller firstController,
Controller lastController) |
Modifier and Type | Method and Description |
---|---|
void |
addController(Controller controller,
double weight)
Adds a controller to the list.
|
boolean |
handleEvent(IdeAction action,
Context context)
This method is called when a user interaction with a
View
triggers the execution of a command. |
void |
removeController(Controller controller) |
boolean |
update(IdeAction action,
Context context)
This method updates the enabled status of the specified action within the
specified context.
|
public static final Controller USE_ACTIVE_VIEW_CONTROLLER
public static final Controller NOOP_CONTROLLER
public WeightedController()
public WeightedController(Controller firstController, Controller lastController)
firstController
- This is guaranteed to be the first controller. Can be null.lastController
- This is guaranteed to be the last controller. Can be null.public void addController(Controller controller, double weight)
weight
- Small value means higher priority: The controllers with the lower values are invoked before the others.public void removeController(Controller controller)
public boolean update(IdeAction action, Context context)
Controller
update
in interface Controller
action
- action whose command is to be executed.context
- the current contextpublic boolean handleEvent(IdeAction action, Context context)
Controller
View
triggers the execution of a command.handleEvent
in interface Controller
action
- action whose command is to be executed.