Module custom_properties 

Support for custom properties for cascading variables.

Structs

ComputedCustomProperties

A pair of separate CustomPropertiesMaps, split between custom properties that have the inherit flag set and those with the flag unset.

ComputedSubstitutionFunctions

A wrapper map that encapsulates both the custom properties and attributes for a given element.

NonCustomReferenceMap

A map from NonCustomReferenceMap to a T.

VariableValue

A value for a custom property is just a set of tokens.

Enums

SingleNonCustomReference

A non-custom reference that participates in cycle resolution. TODO(emilio): This should probably eventually become just PrioritaryPropertyId.

Functions

compute_value

Computes css against the registration of a custom property.

compute_variable_value 🔒

Given a potentially registered variable value turn it into a computed custom property value.

handle_invalid_at_computed_value_time

See https://drafts.csswg.org/css-variables-2/#invalid-at-computed-value-time

parse_name

Parse a custom property name.

reify_variable_value 🔒

reify_variable_value_range 🔒

Reify a slice of the CSS string into UnparsedSegment entries.

remove_and_insert_initial_value 🔒

Removes the named registered custom property and inserts its uncomputed initial value.

substitute_references_if_needed_and_apply

Replace substitution functions in a pre-existing variable value.

Type Aliases

ComputedValue

Both specified and computed values are VariableValues, the difference is whether var() functions are expanded.

Name

A custom property name is just an Atom.

SpecifiedValue

Both specified and computed values are VariableValues, the difference is whether var() functions are expanded.