Request: media query feature for device when a virtual keyboard is open/closed

[tantek]

For the group's consideration (per https://bugzilla.mozilla.org/show_bug.cgi?id=787444)

[frivoal]

This was briefly considered when we were starting with media queries 4, and postponed because I and others involved didn't feel we had a good grasp on this topic.

• What are the use cases people are trying to address
• Should we just detect open vs closed? Are there different types of open (overlaying the viewport vs reducing it, for instance)? We probably also want to distinguish between a closed virtual keyboard and no virtual keyboard at all, and between a full keyboard and a phone keypad and a TV remote...

Collecting use cases and requirements for these different things would probably help in figuring out how to slice that problem space, so thanks for bringing this one up.

[frivoal]

This old mail to www-style from @FremyCompany is relevant:
https://lists.w3.org/Archives/Public/www-style/2015Apr/0052.html

[RByers]

Related discussions:
https://discourse.wicg.io/t/onscreen-keyboard-api-to-obtain-dimensions-presence-of-the-keyboard/674
https://discourse.wicg.io/t/exposing-a-users-input-modality/1067

/cc @darktears