[RNMobile] Add buttons slot to floating toolbar

[fluiddot]

Description

Add a slot in the floating toolbar to allow blocks to add their own buttons.

How has this been tested?

There's no block yet using it so for testing this it's required to add code manually.

1. Add the following code to the Group block:

Import FloatingToolbarButtons in this line:

import {
	InnerBlocks,
	FloatingToolbarButtons,
	store as blockEditorStore,
} from '@wordpress/block-editor';

Add the floating bar buttons after this line:

<FloatingToolbarButtons>
	<ToolbarButton
		title={ 'plus' }
		onClick={ () => console.log( 'plus' ) }
		icon={ require( '@wordpress/icons' ).plus }
	/>
	<ToolbarButton
		title={ 'minus' }
		onClick={ () => console.log( 'minus' ) }
		icon={ require( '@wordpress/icons' ).minus }
	/>
</FloatingToolbarButtons>

2. Open a post
3. Add the following HTML code:

<!-- wp:group -->
<div class="wp-block-group"><div class="wp-block-group__inner-container"><!-- wp:code -->
<pre class="wp-block-code"><code></code></pre>
<!-- /wp:code --></div></div>
<!-- /wp:group -->

4. Select the Group block
5. Observe that the plus and minus icon buttons are displayed in the floating toolbar
6. Tap on both of them
7. Check that each of them printed a log in the console
8. Tap on the inner Code block
9. Observe that the buttons are still displayed in the floating toolbar

Screenshots

floating-toolbar-buttons.mp4

Types of changes

New feature

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows the accessibility standards.
• I've tested my changes with keyboard and screen readers.
• My code has proper inline documentation.
• I've included developer documentation if appropriate.
• I've updated all React Native files affected by any refactorings/renamings in this PR (please manually search all *.native.js files for terms that need renaming or removal).

[github-actions]

Size Change: 0 B

Total Size: 1.42 MB

ℹ️ View Unchanged

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_{compressed-size-action}

[youknowriad]

Doing some cleanup to old PRs. This draft PR seem staled, is it still relevant, should we close it?