File Directory Tree View examples: modifier keys are not correctly handled

[mcking65]

Resolve the following bugs in the handleKeydown function in treeview/treeview-1/js/treeitem.js:

1. It incorrectly captures printable char keys that are pressed in combination with ctrl, alt, or meta modifiers. Such key events should be allowed to propagate.
2. It should allow any keydown event where alt or meta modifier is pressed to propagate.

[mcking65]

Thank you @jongund! This bug is almost fixed.

The one issue that remains is that if only shift is held when typing a printable char, the key press is ignored. This breaks typeahead for chars like !, @, #, $, ., etc.

[jongund]

Matt, It should be fixed now. Jon From: Matt King <notifications@github.com> Reply-To: w3c/aria-practices <reply@reply.github.com> Date: Monday, April 24, 2017 at 11:29 AM To: w3c/aria-practices <aria-practices@noreply.github.com> Cc: Jon Gunderson <jongund@illinois.edu>, Mention <mention@noreply.github.com> Subject: Re: [w3c/aria-practices] File Directory Tree View examples: modifier keys are not correctly handled (#367) Thank you @jongund<https://github.com/jongund>! This bug is almost fixed. The one issue that remains is that if only shift is held when typing a printable char, the key press is ignored. This breaks typeahead for chars like !, @, #, $, ., etc. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub<#367 (comment)>, or mute the thread<https://github.com/notifications/unsubscribe-auth/ABcE7Jm7Za0j00uEpzA-VX8zxuq8EC1gks5rzM3ZgaJpZM4NCpuq>.

[mcking65]

With pull 377, this issue is now fixed. Thank you @jongund!!