Writing flow: Select all doesn't work when focused on a non-text input

[mirka]

Description

"Select all" doesn't select all blocks when focused on an input element type that doesn't support selection ranges, such as checkbox.

Step-by-step reproduction instructions

1. Add a <input type="checkbox" /> to the edit component of a Core block, such as Code.
2. Move keyboard focus to the checkbox.
3. Do a "Select all" (e.g. ⌘A).

Expected behaviour

All blocks are selected, as if I were focused on any other non-text tabbable element like <button>.

Actual behaviour

All the text in the window is selected.

Screenshots or screen recording (optional)

WordPress information

Latest trunk in wp-env container.

Device information

• Device: Desktop
• Operating system: macOS 11.3
• Browser: Chrome 91.0.4472.77

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Intelligent support for this behavior would require a more advanced system to classify input elements, because some types do have built-in Select All behavior (e.g. number) but don't support selection range attributes.

[jordesign]

It seems this should have been closed by the issues mentioned above - and I can no longer recreate this so i'll close it for now.