Files
react-native/Libraries/Text/TextInput/RCTBackedTextInputDelegate.h
T
Tony Du 1e3cb91707 Allow multiline TextInputs be submittable without blurring (#33653)
Summary:
For multiline TextInputs, it's possible to send the submit event when pressing the return key only with `blurOnSubmit`. However, there's currently no way to do so without blurring the input and dismissing the keyboard. This problem is apparent when we want to use a TextInput to span multiple lines but still have it be submittable (but not blurrable), like one might want for a TODO list.

![multiline-momentary-blur](https://user-images.githubusercontent.com/22553678/163596940-aae779f5-4d2a-4425-8ed0-e4aa77b90699.gif)

## Changelog

<!-- Help reviewers and the release process by writing your own changelog entry. For an example, see:
https://github.com/facebook/react-native/wiki/Changelog
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[General] [Added] - Add `returnKeyAction` prop to `TextInput` component
[General] [Deprecated] - Remove usages of `blurOnSubmit` in native code and convert `blurOnSubmit` to `returnKeyAction` in the JavaScript conversion layer

Pull Request resolved: https://github.com/facebook/react-native/pull/33653

Test Plan:
Verified old usages of combinations of `blurOnSubmit` and `multiline` matched previous behavior and that the new `returnKeyAction` prop behaves as expected.

| Android | iOS |
| --- | -- |
| ![android-returnkeyaction-test](https://user-images.githubusercontent.com/22553678/163597864-2e306f98-7b6e-4ddf-8a35-625d397d3dce.gif) | ![ios-returnkeyaction-test](https://user-images.githubusercontent.com/22553678/163598407-9e059f74-3549-4b46-8e03-c19bfaa6dd3d.gif)  |

With the changes, the TODO list example from before now looks like this:

![multiline-no-momentary-blur](https://user-images.githubusercontent.com/22553678/163598810-f3a71d62-5514-486e-bf6a-79169fe86378.gif)

Reviewed By: yungsters

Differential Revision: D35735249

Pulled By: makovkastar

fbshipit-source-id: 1f2237a2a5e11dd141165d7568c91c9824bd6f25
2022-07-22 13:08:45 -07:00

45 lines
1.6 KiB
Objective-C

/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#import <UIKit/UIKit.h>
@protocol RCTBackedTextInputViewProtocol;
NS_ASSUME_NONNULL_BEGIN
@protocol RCTBackedTextInputDelegate <NSObject>
- (BOOL)textInputShouldBeginEditing; // Return `NO` to disallow editing.
- (void)textInputDidBeginEditing;
- (BOOL)textInputShouldEndEditing; // Return `YES` to allow editing to stop and to resign first responder status. `NO` to disallow the editing session to end.
- (void)textInputDidEndEditing; // May be called if forced even if `textInputShouldEndEditing` returns `NO` (e.g. view removed from window) or `[textInput endEditing:YES]` called.
- (BOOL)textInputShouldReturn; // May be called right before `textInputShouldEndEditing` if "Return" button was pressed. Dismisses keyboard if true
- (void)textInputDidReturn;
- (BOOL)textInputShouldSubmitOnReturn; // Checks whether to submit when return is pressed and emits an event if true.
/*
* Called before any change in the TextInput. The delegate has the opportunity to change the replacement string or reject the change completely.
* To change the replacement, return the changed version of the `text`.
* To accept the change, return `text` argument as-is.
* To reject the change, return `nil`.
*/
- (NSString *)textInputShouldChangeText:(NSString *)text inRange:(NSRange)range;
- (void)textInputDidChange;
- (void)textInputDidChangeSelection;
@optional
- (void)scrollViewDidScroll:(UIScrollView *)scrollView;
@end
NS_ASSUME_NONNULL_END