ChangedEvent$Typings extension

on

Properties

change ↔ EnumValue

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

Gets or sets the nature of change that occurred. The default is ChangedEvent.Property. Other values are ChangedEvent.Insert, ChangedEvent.Remove, and ChangedEvent.Transaction.
getter/setter pair
diagram ↔ Diagram?

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

Gets or sets the Diagram that was modified. When this property is non-null, the #model property will be null. However this property and the #model property may both be null simultaneously, when no particular model or diagram applies.
getter/setter pair
isTransactionFinished ↔ bool

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

This read-only property is true when this ChangedEvent is of type ChangedEvent.Transaction and represents the end of a transactional change. It is implemented as:
getter/setter pair
model ↔ Model?

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

Gets or sets the Model or TreeModel or GraphLinksModel that was modified. When this property is non-null, the #diagram property will be null. However this property and the #diagram property may both be null simultaneously, when no particular model or diagram applies.
getter/setter pair
modelChange ↔ String

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

Gets or sets the name of the model change, reflecting a change to model data in addition to a change to the model itself.
getter/setter pair
newParam ↔ dynamic

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

Gets or sets an optional value associated with the new value. Most properties do not require any parameter to describe the change. This is typically a value that helps distinguish the new value, such as an index into an array. It is null if it is not used. The default is null.
getter/setter pair
newValue ↔ dynamic

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

Gets or sets the next or current value that the property has. The default is null.
getter/setter pair
object ↔ Object?

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

Gets or sets the Object that was modified. The default is null.
getter/setter pair
oldParam ↔ dynamic

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

Gets or sets an optional value associated with the old value. Most properties do not require any parameter to describe the change. This is typically a value that helps distinguish the old value, such as an index into an array. It is null if it is not used. The default is null.
getter/setter pair
oldValue ↔ dynamic

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

Gets or sets the previous or old value that the property had. The default is null.
getter/setter pair
propertyName ↔ Object

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

Gets or sets the name of the property change. The default is an empty string, which is not a valid property name. This property can be useful even when the type of change is not ChangedEvent.Property, because it can help identify the collection in the #object that was modified (for ChangedEvent.Insert or ChangedEvent.Remove) or the stage of the current transaction (for ChangedEvent.Transaction).
getter/setter pair

Methods

canRedo() → bool

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

This predicate returns true if you can call redo(). @return {boolean} True if ready for redo() to be called.
canUndo() → bool

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

This predicate returns true if you can call undo(). @return {boolean} True if ready for undo() to be called.
clear() → void

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

Forget any object references that this ChangedEvent may have.
copy() → ChangedEvent

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

Make a copy of this ChangedEvent. ChangedEvents are copied when the UndoManager adds to a Transaction. @return {ChangedEvent}
getParam(bool undo) → dynamic

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

This is a convenient method to get the right parameter value, depending on the value of undo, when implementing a state change as part of an undo or a redo. @param {boolean} undo If true, returns the oldParam, otherwise returns the newParam. @return {*} Either the oldParam or the newParam.
getValue(bool undo) → dynamic

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

This is a convenient method to get the right value, depending on the value of undo, when implementing a state change as part of an undo or a redo. @param {boolean} undo If true, returns the oldValue, otherwise returns the newValue. @return {*} Either the oldValue or the newValue.
redo() → void

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

Re-perform this object change after an undo(). canRedo() must be true for this method to have any effect.
undo() → void

Available on ChangedEvent, provided by the ChangedEvent$Typings extension

Reverse the effects of this object change. canUndo() must be true for this method to have any effect.