Disable spell check in Firefox

[alexeyinkin]

[alexeyinkin]

See also:

• Spellcheck on Flutter Web flutter/flutter#40682
• Flutter web spellcheck (Firefox grammar check) flutter/flutter#103342

Workarounds:

1. spellCheckConfiguration: const SpellCheckConfiguration.disabled(), does not work.
2. keyboardType: TextInputType.visiblePassword works but it requires platform check.

TODO:

1. Investigate what exactly triggers spellcheck in Firefox because the minimal app does not. Describe it here.
2. File a bug in Flutter.
3. Make a workaround, likely with TextInputType.visiblePassword.

[yescorp]

As I checked, the reason behind spell check trigger is TextField.maxLines property.
If it is set to something, even null, the FireFox will activate the spell check.
As I see, there is no solution of removing some set property of the TextField.

I am going to implement the workaround first, and then send the defect to the flutter team.

[yescorp]

Setting keyboardType: TextInputType.visiblePassword breaks the TextField -> it becomes a single line.

I am investigating to find another workaround.

[alexeyinkin]

The dummiest thing to do is to set autocomplete="false" with JavaScript on all textareas. This should be done in a timer every few seconds during the whole life of the app to guarantee it will not be cleared on rebuilds.

[yescorp]

I created the corresponding issue in Flutter repo

• Can not disable spellcheck for TextField in FireFox flutter/flutter#122092