Class UndoableEdit

Implements a composite undoable edit. Here is an example for a custom change which gets executed via the model:

function CustomChange(model, name)
{
  this.model = model;
  this.name = name;
  this.previous = name;
};

execute = ()=>
{
  let tmp = this.model.name;
  this.model.name = this.previous;
  this.previous = tmp;
};

let name = prompt('Enter name');
graph.model.execute(new CustomChange(graph.model, name));

Event: mxEvent.EXECUTED

Fires between START_EDIT and END_EDIT after an atomic change was executed. The change property contains the change that was executed.

Event: mxEvent.START_EDIT

Fires before a set of changes will be executed in or . This event contains no properties.

Event: mxEvent.END_EDIT

Fires after a set of changeswas executed in or . This event contains no properties.

Constructor: mxUndoableEdit

Constructs a new undoable edit for the given source.

Constructors

constructor

Properties

changes redone significant source undone

Methods

add die isEmpty isSignificant notify redo undo

Constructors

constructor

Properties

changes

changes: UndoableChange[] = []

Array that contains the changes that make up this edit. The changes are expected to either have an undo and redo function, or an execute function. Default is an empty array.

redone

redone: boolean = false

Specifies if this edit has been redone. Default is false.

significant

significant: boolean = true

Specifies if the undoable change is significant. Default is true.

source

source: EventSource

Specifies the source of the edit.

undone

undone: boolean = false

Specifies if this edit has been undone. Default is false.

Methods

add

die

isEmpty

isSignificant

notify

redo

undo

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Constructors
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Methods