CSS WG Blog Minutes San Diego F2F August 2012: @suppor…

Minutes San Diego F2F August 2012: @supports, Selectors 4, Syntax

CSS Conditional Rules Level 3

Discussed OM for @supports:

• Resolved: Have intermediary condition rule interface called CSSConditionRule
• Resolved: .conditionText on the common interface; for @media it is equivalent to .media.mediaText
• Resolved: .conditionText returns either the token stream or source text from the style rule, with no logical simplifications, just tokenization ones
• Resolved: CSS.supports() with one (conditionText-compatible) or two (property, value) arguments. Fall back to window.supportsCSS() if not possible.
• Resolved: property name must be the name, no escapes, no spaces, it’s not parsed it’s just a name. value can be anything taken as a value

Selectors Level 4

• Section added to define selector scoping. Better terminology suggestions welcome.
• Discussed drag-and-drop selectors, see resulting summary.
• Resolved: Add :user-error pseudo to represent :-moz-ui-invalid. Issue raised about potential :user-interacted.
• Resolved: Publish next draft with subject indicator as a ! before the subject; issue open on whether before or after.
• Resolved: Publish Selectors Level 4 as WD

CSS Syntax Level 3

Tab presented his draft of CSS Syntax Level 3, which is defines CSS parsing as a state machine, and asked for feedback. Some work still necessary before it’s ready to publish officially as WD.

Full minutes: @supports and Selectors 4, Syntax

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