CSS WG Blog Minutes Tokyo F2F June 2013 Part I: Animat…

Minutes Tokyo F2F June 2013 Part I: Animations, SVG Text, Compositing and Blending

Web Animations

Brian Birtles presented the Web Animations editor’s draft with an overview of its contents. (See also diagram.)

Dean Jackson of Apple expressed some concern at adding so much API to
the Web platform at once:

[We’re] concerned about the massive amount of new API to add in one step. Generally Web improvements are more successful when iterative rather than massive new feature.

And also expressed that

Apple’s main interest in this type of work is very much in the form of declarative approaches to animation backed by a strong API.

and so there was some concern over leaving out features needed for declarative control.

However, everyone agreed that the spec was in good shape for FPWD, so

• Resolved: Publish Web Animations as First Public Working Draft (resolved by both CSS and SVG WGs).

P.S. There is an experimental JS shim for the draft available.

Full minutes

Reusing Stroke and Fill in CSS

The CSS and SVG WGs discussed the possibility of reusing the SVG stroke and fill properties to stroke and fill text in CSS. Some concerns raised:

• controlling pattern fill boundaries when an inline breaks across lines
• figuring out appropriate initial values and interaction with color
• inheriting a pattern fill doesn’t work in CSS; need to know which element specified the pattern, otherwise adding unstyled inline around part of the text will reset the pattern
• SVG properties don’t follow the CSS shorthanding patterns; need to check back-compat wrt whether this can be fixed
• need some control over where the stroke sits on the glyph outline

fantasai and Tab volunteered to draw up a proposal for how this should work

Full minutes

SVG Text Wrapping

Discussed SVGWG’s proposals ([1], [2]) for adding soft-wrapping to SVG. The goal is to re-use CSS functionality (and layout engines) for SVG text layout. No objections so far to proposal to add a width attribute to <text> for wrapping; however it was felt by some that for formatting multi-block content, HTML markup should be reused. In general, people want CSS text formatting to Just Work in SVG, not require special rules for SVG text content.

Full minutes

Compositing and Blending

Reviewed Compositing and Blending draft, which now contains only 3 CSS properties: mix-blend-mode, isolation, background-blend-mode. Discussed use cases, design, interaction with stacking contexts, forwards-compatibility, etc. The draft needs more review. Meanwhile,

• Resolved: Publish updated WD of Compositing and Blending Level 1

Full minutes

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