b/426553069

Help us understand the severity of this issue

• causing severe production issues e.g. malfunctions or data loss
• blocking next binary release
• blocking a client feature launch within a quarter
• nice-to-have but does not block a launch within the next quarter

Steps to reproduce

Google Earth uses MenuItemButton which calls private member _MenuItemLabel, however when the menu item is disabled the voice over semantics doesn’t announce that it’s disabled.
https://source.corp.google.com/piper///depot/google3/third_party/dart/flutter/lib/src/material/menu_anchor.dart;l=2766

what I see happening is if
a) there’s no semantic label provided, on line 2875, it labels it using _LocalizedShortcutLabel which doesn’t take in account the enabled state, or
b) on line 2889 it creates a Semantics(…) object if we provide a label, but again doesn’t have “enabled” field used.

this is where we use MenuItemButton: https://source.corp.google.com/piper///depot/google3/geo/earth/app/flutter/components/menu_items/lib/menu_items.dart;l=111

Expected results

voice over pronounces that the menu item is disabled when that menu item is disabled

Actual results

voice over calls a disabled menu item button as its regular semantic name

Code sample

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Screenshots or Video

Logs

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Flutter Doctor output

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