fabriziobertoglio1987 759056b499 Override default Talkback automatic content grouping and generate a custom contentDescription (#33690)
Summary:
The Implementation of the functionality consists of:

1) Checking that an element has no contentDescription and no text and has other content to announce (role, state, etc.) which causes this issue (for ex. the accessibilityRole is announced before the contentDescription for ex. "Button, My text children component")
2) If Talkback finds no content to announce on the current node, a custom contentDescription is generated from the child elements that respect the following conditions:

>If an AccessibilityNodeInfo is considered "actionable" (which Talkback defines as having clickable=true, longClickable=true, or focusable=true, or having AccessibilityActions for any of those), AND it has some content to read like a contentDescription or text, it will be considered focusable.
>If an AccessibilityNodeInfo is considered "actionable" AND it does not have content to read like a contentDescription or text Talkback will parse descendant elements looking for non-focusable descendants to use as content.

3) implementation of a method getTalkbackDescription to generate the above contentDescription from child elements
4) over-ride parent contentDescription (accessibilityLabel) with the value returned from getTalkbackDescription

Related [notes on Android: Role description is announced before the components text, rather than after https://github.com/facebook/react-native/issues/31042][51]. This issue fixes [https://github.com/facebook/react-native/issues/31042][50].

## Changelog

[Android] [Added] - Override default Talkback automatic content grouping and generate a custom contentDescription

Pull Request resolved: https://github.com/facebook/react-native/pull/33690

Test Plan:
**PR Branch**
[1]. Screenreader correctly announcing accessible/non-accessible items ([link][1])
[2]. Screenreader announces Pressability items ([link][2])
[3]. Button role is announced after child contentDescription with TouchableNativeFeedback ([link][3])
[4]. Testing for regressions in Accessibility Actions ([link][4])
[5]. Screenreader focuses on ScrollView Items ([link][5])
[6]. Recordings of complete test cases in rn-tester app main and pr branch ([link][6])
[9]. TouchableOpacity with TextInput child announces contentDescription before the Role ([link][9])
[10]. One of the child has accessibilityState (hasStateDescription triggers the announcement) ([link][10])
[11]. One of the child has accessibilityHint (hasText triggers the announcement) ([link][11])

**Main**
[15]. The View does not announce the child component Text when accessibilityLabel is missing (automatic content grouping) ([link][15])
[8]. TouchableOpacity with child EditText annouces placeholder text before and after the role ([link][8])

[1]: https://github.com/fabriziobertoglio1987/react-native-notes/issues/14#issuecomment-1106375974 "Screenreader correctly announcing accessible/non-accessible items"
[2]: https://github.com/fabriziobertoglio1987/react-native-notes/issues/14#issuecomment-1106213313 "Screenreader announces Pressability items"
[3]: https://github.com/fabriziobertoglio1987/react-native-notes/issues/14#issuecomment-1109935139 "Button role is announced after child contentDescription"
[4]: https://github.com/fabriziobertoglio1987/react-native-notes/issues/14#issuecomment-1110541392 "Testing for regressions in Accessibility Actions"
[5]: https://github.com/fabriziobertoglio1987/react-native-notes/issues/14#issuecomment-1106012823 "Screenreader focuses on ScrollView Items"
[6]: https://github.com/fabriziobertoglio1987/react-native-notes/issues/14#issuecomment-1111942775 "Recordings of complete test cases in rn-tester app main and pr branch"
[7]: https://github.com/fabriziobertoglio1987/react-native-notes/issues/14#issuecomment-1139511589 "TouchableOpacity with child EditText annouces Button role before the child contentDescription"
[8]: https://github.com/fabriziobertoglio1987/react-native-notes/issues/14#issuecomment-1140967225 "TouchableOpacity with child EditText annouces placholder text before and after the role"
[9]: https://github.com/fabriziobertoglio1987/react-native-notes/issues/14#issuecomment-1140999648 "TouchableOpacity with TextInput child announces contentDescription before the Role"
[10]: https://github.com/fabriziobertoglio1987/react-native-notes/issues/14#issuecomment-1149479950 "One of the child has accessibilityState (hasStateDescription triggers the announcement)"
[11]: https://github.com/fabriziobertoglio1987/react-native-notes/issues/14#issuecomment-1149535215 "One of the child has accessibilityHint (hasText triggers the announcement)"

[15]: https://github.com/fabriziobertoglio1987/react-native-notes/issues/14#issuecomment-1088680339 "The View does not announce the child component Text when accessibilityLabel is missing (automatic content grouping)"

[50]: https://github.com/facebook/react-native/issues/31042 "Android: Role description is announced before the components text, rather than after https://github.com/facebook/react-native/issues/31042"
[51]: https://github.com/fabriziobertoglio1987/react-native-notes/issues/14 "notes on Android: Role description is announced before the components text, rather than after https://github.com/facebook/react-native/issues/31042"

Reviewed By: cipolleschi

Differential Revision: D39177512

Pulled By: blavalla

fbshipit-source-id: 6bd0fba9c347bc14b3839e903184c86d2bcab3d2
2022-12-01 21:32:04 -08:00
2019-09-19 18:36:25 -07:00
2022-11-28 02:14:35 -08:00
2022-11-29 18:59:06 -08:00
2022-11-29 18:59:06 -08:00
2022-11-15 11:27:14 -08:00
2022-11-28 02:14:35 -08:00
2022-11-28 02:14:35 -08:00

React Native

Learn once, write anywhere:
Build mobile apps with React.

React Native is released under the MIT license. Current CircleCI build status. Current npm package version. PRs welcome! Follow @reactnative

Getting Started · Learn the Basics · Showcase · Contribute · Community · Support

React Native brings React's declarative UI framework to iOS and Android. With React Native, you use native UI controls and have full access to the native platform.

  • Declarative. React makes it painless to create interactive UIs. Declarative views make your code more predictable and easier to debug.
  • Component-Based. Build encapsulated components that manage their state, then compose them to make complex UIs.
  • Developer Velocity. See local changes in seconds. Changes to JavaScript code can be live reloaded without rebuilding the native app.
  • Portability. Reuse code across iOS, Android, and other platforms.

React Native is developed and supported by many companies and individual core contributors. Find out more in our ecosystem overview.

Contents

📋 Requirements

React Native apps may target iOS 12.4 and Android 5.0 (API 21) or newer. You may use Windows, macOS, or Linux as your development operating system, though building and running iOS apps is limited to macOS. Tools like Expo can be used to work around this.

🎉 Building your first React Native app

Follow the Getting Started guide. The recommended way to install React Native depends on your project. Here you can find short guides for the most common scenarios:

📖 Documentation

The full documentation for React Native can be found on our website.

The React Native documentation discusses components, APIs, and topics that are specific to React Native. For further documentation on the React API that is shared between React Native and React DOM, refer to the React documentation.

The source for the React Native documentation and website is hosted on a separate repo, @facebook/react-native-website.

🚀 Upgrading

Upgrading to new versions of React Native may give you access to more APIs, views, developer tools, and other goodies. See the Upgrading Guide for instructions.

React Native releases are discussed in this discussion repo.

👏 How to Contribute

The main purpose of this repository is to continue evolving React Native core. We want to make contributing to this project as easy and transparent as possible, and we are grateful to the community for contributing bug fixes and improvements. Read below to learn how you can take part in improving React Native.

Code of Conduct

Facebook has adopted a Code of Conduct that we expect project participants to adhere to. Please read the full text so that you can understand what actions will and will not be tolerated.

Contributing Guide

Read our Contributing Guide to learn about our development process, how to propose bugfixes and improvements, and how to build and test your changes to React Native.

Open Source Roadmap

You can learn more about our vision for React Native in the Roadmap.

Good First Issues

We have a list of good first issues that contain bugs which have a relatively limited scope. This is a great place to get started, gain experience, and get familiar with our contribution process.

Discussions

Larger discussions and proposals are discussed in @react-native-community/discussions-and-proposals.

📄 License

React Native is MIT licensed, as found in the LICENSE file.

React Native documentation is Creative Commons licensed, as found in the LICENSE-docs file.

Languages
C++ 33%
Kotlin 20%
JavaScript 18.6%
Objective-C++ 11.5%
Objective-C 7.1%
Other 9.7%