What problem does this address?

If we make the OffCanvasEditor the default experience for the navigation block remove the "experiment" wrapper from the Nav block offcanvas editor, we need to ensure that any accessibility concerns are addressed.

What is your proposed solution?

Address all the Todos below.

We have this issue which has one proposal, but it would be good to raise more issues so we can address them ASAP.

Todos

Update: additional issues have been identified as part of a follow up review.

The following Issues should be developed and tested using a screen reader:

• Improve accessible text of Open Navigation List View button #47007
• Nav block Offcanvas toggle button should toggle and transfer focus #47008
• Must be possible to close the Nav block offcanvas list view #47009
• Nav Offcanvas inserter/appender button should provide more context #47011
• Block inserter dialog has unexpected tab stop #47013 Outside project scope.
• Nav offcanvas remove "Browse All" from inserter block picker #47014
• Block inserter lacking a clear close button #47016 Outside project scope.
• Nav offcanvas - creating a menu from the block list view transfers focus back to canvas #47018 Outside project scope.
• Nav block moving between auto menu and newly created menu lacks context #47019 Outside project scope.
• Nav block lacks context about menu currently being edited within the block #47020 Outside project scope.
• Navigation: Add more explicit labels to the Navigation Menu Selector #47015
• Improve accessible Name of the Navigation Offcanvas List View #47022
• Nav offcanvas remove link affordance from list view nodes #47023
• Nav offcanvas set the correct aria-posinset for the appender #47024
• Nav offcanvas - retain key block options but make disabled with appropriate description  #47025

Context

The offcanvas editor repurposes the standard list view and displays it within the inspector controls sidebar for the Navigation block. Users are then able to create/edit nav menus using a customised list view tree interface.

The two calls for testing from Make Blog are available at:

• Prototype
• Experimental implementation

cc @alexstine @tellthemachines @ndiego @afercia