| Package | com.yworks.support |
| Class | public class DelegateUndoUnit |
| Inheritance | DelegateUndoUnit  AbstractUndoUnit Object |
IUndoUnit interface that uses simple delegate functions
for the actual undo and redo operations.
| Method | Defined By | ||
|---|---|---|---|
DelegateUndoUnit(undoName:String, undoHandler:Function, redoHandler:Function, undoParam:Object = null, redoParam:Object = null)
Creates a new instance using the provided name and a undo and redo handler function
as well as the parameters to pass to the handler functions. | DelegateUndoUnit | ||
 |
This implementation does nothing and returns false. | AbstractUndoUnit | |
| canRedo():Boolean
Determines whether this instance can currently redo its work. | AbstractUndoUnit | |
| canUndo():Boolean
Determines whether this instance can currently undo its work. | AbstractUndoUnit | |
| dispose():void
Frees all used resources. | AbstractUndoUnit | |
| redo():void
Redoes the change that is represented by this unit. | AbstractUndoUnit | |
| replaceUnit(unit:IUndoUnit):Boolean
This implementation does nothing and returns false. | AbstractUndoUnit | |
| undo():void
Undoes the change that is represented by this unit. | AbstractUndoUnit | |
| Method | Defined By | ||
|---|---|---|---|
redoImpl():void [override]
Calls the redo delegate using the redo parameter. | DelegateUndoUnit | ||
undoImpl():void [override]
Calls the undo delegate using the undo parameter. | DelegateUndoUnit | ||
| DelegateUndoUnit | () | Constructor |
Hide Inherited Public Properties
Show Inherited Public Propertiespublic function DelegateUndoUnit(undoName:String, undoHandler:Function, redoHandler:Function, undoParam:Object = null, redoParam:Object = null)Creates a new instance using the provided name and a undo and redo handler function as well as the parameters to pass to the handler functions.
ParametersundoName:String — The name of the undo unit.
| |
undoHandler:Function — The undo handler delegate.
| |
redoHandler:Function — The redo handler delegate.
| |
undoParam:Object (default = null) | |
redoParam:Object (default = null) |
| redoImpl | () | method |
override protected function redoImpl():voidCalls the redo delegate using the redo parameter.
| undoImpl | () | method |
override protected function undoImpl():voidCalls the undo delegate using the undo parameter.