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Re: [csswg-drafts] [css-media-queries] Foldables support and enablement (#4141)

From: Amelia Bellamy-Royds via GitHub <sysbot+gh@w3.org>
Date: Mon, 22 Jul 2019 19:15:22 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-513916885-1563822921-sysbot+gh@w3.org>
I agree that this needs to go beyond media queries. You need to be able to target the different parts of the screen for layout in some way. At the very least, there would need to be environment variables defining the areas and their dimensions, so that you could create a CSS grid on your root element that defines the different screen panels as different grid areas.

And it makes sense to approach this in a more general way, and consider the ability to have a single website control two screens for working with dual monitors or a projector. Another device with a secondary screen is the mac "touch bar" screen. I think apps have a way to draw content here, I'm not sure if there is any interest in exposing that screen to websites (or if it is better to let it be used for browser controls).

But, we need to distinguish between second screens/panels that should only be used for sidebar/controls, versus those where it makes sense for the main body context to fragment across & fill up the extra screen.  With a folding screen, this could be the difference between a bent screen (like a book, you might want a column of text on each side, paginated to fit the screen) and one completely folded over (you could put the nav on the back, but might want to have the main text on the front screen in a scroller).

It's also worth thinking about how much user-control there should be. I assume there would be a user setting of the form "if my screen is folded, only use the front screen" vs "use both screens". Are there other relevant user preferences? If so, how should these variations be exposed?

Just from this discussion, I think there are two incomplete areas of CSS layout that need to be resolved to make these layouts really useful: CSS regions (fragmented text across grid regions representing panels of different sizes), and for screens.

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Received on Monday, 22 July 2019 19:15:25 UTC

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