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Monday, August 17, 2015

Updates since last meeting (on Monday, August 10th):

Scrolling (skobes, szager) []
- Moved scrolled-by-user flag out of FrameView. (skobes)
- Custom scrollbars are now working with root layer scrolling. (skobes)

CSS Flexbox (cbiesinger) []
- Got go-ahead to unprefix intrinsic sizing keywords (min-content,
  max-content, fill and, fit-content). Will go ahead and unprefix all
  but fill (currently -webkit-fill-available) as there is still some
  open questions around it and the CSS working group doesn't quite think
  it's ready for prime time yet.
- Added use counter for prefixed intrinsic size keywords.

CSS Grid Layout (svillar) []
- Working on refactoring min/max ContentForChild calls to share more
  code and logic.

Region-based multi-column support (mstensho) []
- Landed initial support for nested multicol layout. Column balancing
  still needs work but the most common use cases work.
- Plan to hook up printing code once I'm more confident about the
  implementation. Will finally enable multicol for printing for the
  first time ever in Blink. :) (mstensho)

Add API for layout (leviw, pilgrim, ojan) []
- Landed several API patches and finishing up API conversion for box
  model object. Estimate about a weeks worth of work remains. (pilgrim)

Text (eae, drott, kojii)
- Debugging font matching issue on windows, looks like Skia is not
  returning the full font name. (drott)
- Implemented tab characters for complex path, one of the blockers to
  unify simple path to complex path. (kojii)
- Landed font fallback cleanup to fix a crash bug with support from the
  memory team. (kojii)
- Enabled Unicode Variation Selector for Chrome OS. (kojii)
- Eliminated the last remaining direct caller to HarfBuzzShaper for
  better layering. (kojii)
- Fixed handling of invalid and unmatched UTF-16 surrogate pairs, we now
  replace invalid pairs with a replacement glyph and keep processing the
  rest of the text node while before we would abort after the first
  invalid character and not paint the remaining text. (eae)
- Fixed handling of tabs in complex path in cases where tabs are not
  supported. (eae)

- Cleaned up PageBoundaryRule and nextPageLogicalTop. (mstensho)
- Fixed issue with auto-height table cells and percentage heights that
  broke a couple of popular legacy websites. (mstensho)
- Issue with win10 bots where hundreds of tests where failing and tools
  not yet updated to support win8 or win10 specific results, since
  resolved. (cbiesinger)
- Got go-ahead to upstream layout tests to W3C. (cbiesinger)
- Discussion around layout test standards and guidelines, jsbell gave
  update on plan to support web platform tests and will send out further
  information when ready.
- Wrapping up custom properties. (leviw)

- cbiesinger gardening last week (Thu-Fri).
- leviw gardening this week (Mon-Tue).
- Pre-CSS F2F meeting in SF on Tuesday.