[Issue-11] Make dimmer a Close button in VO mode.

[devyml]

Introduction

In Voice Over mode we should make the transparent area above the sheet a button to enable it to be explicitly tapped.

Purpose

• Fix Make dimmer a Close button in VO mode #11
• Make dimmer a Close button in VO mode

Scope

• dimmerTapView introduced above the sheet view and accessibility label added for the view.

📈 Coverage

Code

Documentation

[mpospese]

Please put back some of the changes you made that were unrelated to the current functionality. If you're still struggling to keep the file small enough, we can find other functionality to extract to separate files.

[mpospese]

dimmer tap view does not disable (become invisible to VO) when appearance.isDismissAllowed == false

[mpospese]

Also dimmer view is not accessible via VO yet because it's not an accessibility element. I think you need this in updateViewAppearance:

dimmerTapView.isAccessibilityElement = appearance.isDismissAllowed

That solves the problem of it not being accessible normally, but also it not being disabled where appropriate.