Re-add the "accessibility instructions" modal

[Kataract]

Is this a bug report or feature request? (choose one)

🆕 Feature request

💻 Version of CKEditor

CKEditor 5 builds

📋 Steps to reproduce

1. Press alt+0 while in the text area (which used to bring up the accessibility instructions modal in CKE4)

✅ Expected result

Accessibility instructions modal pops up

❎ Actual result

I get a degrees symbol on my Mac inserted in the text area 😅

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[Reinmar]

Thanks for the report. Indeed, CKEditor 4 has such a modal:

We may need a similar one for CKEditor 5.

I wonder, though, how many apps handle Alt+0? I checked a couple of places (GH, Slack, Google Docs) and none of them showed anything. Does that mean that they don't implement some important accessibility feature? Or is such a modal something specific for CKEditor 4?

cc @Comandeer @oleq @dkonopka

[oleq]

Both Gmail and GitHub implement this feature, but it's under ⇧ Shift+/ (or simply ?) which only makes sense when there's no focus in the text input field, which, again, does not make any sense in a text editor ;-) Also kepp in mind that, as complete ecosystems, these applications have more freedom when it comes to selecting keystrokes.

That's most likely why we used Alt+0 in v4.

P.S. In Slack it is under ⌘+/.

[mlewand]

There are many variations, but most commonly apps use / key today (as opposed to F1 back in a day 🙂).

As @oleq mentioned there are apps using shift+/, I know it's also used in Chrome devtools. alt+/ is also true for GitHub, Bitbucket. ctrl+/ or cmd+/ is used in Slack, Gdocs.

IMO the best option for us is ctrl+/ or cmd+/. Actually this is also happens to be a hotkey that we were planning to use in CKE4 keystrokes dialog.

[Comandeer]

It'd be also good to make it discoverable also for non-screen-reader users, especially:

• mouse/touch users – in this case, a toolbar button should be enough,
• keyboard-only users – I don't have a good idea for that one… Maybe display the info for screen readers also in form of some popup info in the editor when it's keyboard-focused for the first time?

[s-at-dq]

Regarding the shortcut for the modal help dialog:

• The screen reader Orca uses the 0 key for opening context menus (right click menus).
• Depending on the keyboard layout, the key for slash ("/") is only available using the shift key or another modifier.
  • On the standard german layout, you need to press Shift + 7 to get it.
  • On neo2, you need to press Mod3 + I.

[raq007]

+1 to the feature request.