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<FlutterUndoManagerDelegate> Protocol Reference

`#import <FlutterUndoManagerDelegate.h>`

Inheritance diagram for <FlutterUndoManagerDelegate>:

## Instance Methods
(void) | - handleUndoWithDirection:

## Properties
NSUndoManager * | undoManager
UIView< UITextInput > * | activeTextInputView

## Detailed Description

Protocol for undo manager changes from the `FlutterUndoManagerPlugin`, typically a `FlutterEngine`.

Definition at line 23 of file FlutterUndoManagerDelegate.h.

## Method Documentation

## ◆ handleUndoWithDirection:

- (void) handleUndoWithDirection: |  | (FlutterUndoRedoDirection) | direction |

Pass changes to the framework through the undo manager channel.

## Property Documentation

## ◆ activeTextInputView

- (UIView<UITextInput>*) activeTextInputView
| read nonatomic assign

Used to notify the active view when undo manager state (can redo/can undo) changes, in order to force keyboards to update undo/redo buttons.

Definition at line 35 of file FlutterUndoManagerDelegate.h.

## ◆ undoManager

- (NSUndoManager*) undoManager
| read nonatomic assign

The `NSUndoManager` that should be managed by the `FlutterUndoManagerPlugin`. When the delegate is `FlutterEngine` this will be the `FlutterViewController`'s undo manager.

Definition at line 29 of file FlutterUndoManagerDelegate.h.

The documentation for this protocol was generated from the following file:

- shell/platform/darwin/ios/framework/Source/FlutterUndoManagerDelegate.h