Minutes Seattle F2F Wednesday 2017-01-11 Part I: Transforms, Whitespace in a custom property in a variable reference, Geometry interfaces
Transforms
- The references to 4×4 matrices will stay in L1.
- There was agreement that transforms should apply to flex and grid.
- The spec will clarify that transform-origin’s resolved value is used.
- Resolved: add transform-origin-x/y/z to transforms levels 1 and (for z) 2, to address issue 29
- Chrome just committed a patch which resolves the issue titled ‘transform-origin: 0% not equivalent to 0px is confusing’
- Resolved: Add identity transform function to transforms level 2, interpolates with anything, to address this issue
- shane to add use counter to Chrome to collect frequency data on compatibility of change for issue 37
- The group had three proposed resolution to the transforms interpolation issue (issue 38)
- Run the transitions
- Define canonicalization and use the general available transform list and determine if to trigger a transition
- Similar to 2 but moves it to transitions
- There was originally a leaning to get author feedback to decide between a and c, but it was discovered that browsers are interoperable on a.
- Author feedback will still be sought in case there’s overwhelming consensus that c would be the expected behavior.
- Resolved: Resolve issue 38 on option A (run the transitions) from above.
- Resolved:
matrix()
and matrix3d()
should be the same primitive in <a href="https://drafts.csswg.org/css-transforms-1/#transform-primitives"this list
- Resolved: Perspective will interpolate to perspective, rather than to matrix, interpolated by the reciprocals of the lengths.
- Resolved: Follow the spec and match FF which means perspective with a value of 0 is invalid.
- Resolved: UAs must introduce near 0 clamping for perspective.
Full Minutes || Spec Referenced
Whitespace in a custom property in a variable reference
- TabAtkins will create an example in the custom props specification so that everyone is parsing out the whitespace in a custom property as defined by the syntax specification.
Full Minutes || Spec Referenced
Geometry Interfaces
- DomPointReadOnly will stay as-is for now.
- smfr brought up a few questions/ideas around DOM Quads, but there wasn’t time for a real discussion.
Full Minutes || Spec Referenced
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