- From: Daniel Holbert via GitHub <sysbot+gh@w3.org>
- Date: Fri, 20 Jan 2023 22:39:14 +0000
- To: public-css-archive@w3.org
Yeah, infinite-loop-avoidance isn't my concern here. I agree that it's ~fine to just make a little forward progress on each page, shrug about content being clipped if necessary (e.g. a 16px-tall character on a 0.1px height page), and move on. The open questions that motivated this, at least for `size:0`, were: * If a browser were to faithfully honor `size:0`, how would print-preview even work for that "page"? Browsers typically scale the 'virtual sheet of paper' to fit the print-preview viewport, so even extremely small sheets of paper can be usefully previewed. But you can't scale a 0-sized sheet of paper. So the user will just see: `Here's your print preview: [nothingness], page 1 of 60`, which is not-great and arguably pretty broken. * Even if we disregard that UX concern -- suppose the user actually proceed to print to PDF or to postscript. Does a valid file get produced, and can that file be usefully viewed in any viewer? i.e. is it even valid a .ps or .pdf file with zero width and/or height? (I'm actually legitimately not sure, but I suspect it'd be bogus.) I tested a little bit with `gs` (ghostscript) locally and got an error when I tried to render some trivial existing PDF (`orig.pdf`) onto a zero-size page: ``` gs -sDEVICE=pdfwrite -g0x0 -dPDFFitPage -o out.pdf orig.pdf gs -sDEVICE=pdfwrite -g1x0 -dPDFFitPage -o out.pdf orig.pdf gs -sDEVICE=pdfwrite -g0x1 -dPDFFitPage -o out.pdf orig.pdf ``` All of these^ command variants produce `Unrecoverable error: rangecheck in .putdeviceprops`. If I use `1x1` as the size in that command, though, then it completes just fine and produces a valid PDF. -- GitHub Notification of comment by dholbert Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/8335#issuecomment-1399035914 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Friday, 20 January 2023 22:39:16 UTC