Undo/Redo does not work on iPad and iPhone

[garrytaulu]

Nature of issue?

• Found a bug

Details about the bug:

Unable to undo typing in the editor. CMD + Z does not work and neither do the software undo and redo buttons.

• Web browser and version: Safari
• Operating System: iOS 12.2
• Steps to reproduce this bug: Use editor on iPad with either software keyboard or hardware keyboard

[garrytaulu]

Did some quick research on this, it looks like CodeMirror 5.x has broken undo/redo on iOS as it works fine in CodeMirror 3. Probably not much you can do but I’ve raised the issue with CodeMirror as well codemirror/codemirror5#5850

[catarak]

thanks for reporting! i wonder if there's a work around...

[garrytaulu]

Looks like hardware keyboards work now but the software 'undo' and 'redo' buttons still do not work.

[catarak]

Okay, thanks for the update. Hopefully CodeMirror 6 will fix this issue (no idea when that will be released though!).

[catarak]

I'm having a hard time figuring out how to connect CodeMirror to the undo/redo buttons on iPad software keyboards. For mobile development, I think it makes sense to have Undo and Redo buttons that appear, but that still would't show up here.