Is there an existing issue for this?

• I have searched the existing issues
• I have read the guide to filing a bug

Use case

Sometimes, a user interface element is inappropriate/not applicable for the current program conditions and it would be confusing to entire hide this element. The best alternative is being able to disable the element. Flutter provides this capability for some widgets by passing null to the onPressed.

SearchBar is a widget utilized by some third party plugins such as simple_search_dropdown. I can find no way to disable its widget. However, since it utilizes searchbar, it would be good if searchbar could provide an "enabled" parameter. Passing false to this widget would cause it to ignore mouse clicks, tabbing into it and have it display with a grayed out look to let the user know it's disabled.

Proposal

Explained above.