Module custom_properties

Support for custom properties for cascading variables.

Macros

• lnf_int 🔒
• lnf_int_variable 🔒
• make_variable 🔒

Structs

• ComputedCustomProperties
  A pair of separate CustomPropertiesMaps, split between custom properties that have the inherit flag set and those with the flag unset.
• CssEnvironment
  The environment from which to get env function values.
• CustomPropertiesBuilder
  A struct that takes care of encapsulating the cascade process for custom properties.
• EnvironmentVariable 🔒
• NonCustomReferenceMap 🔒
• NonCustomReferences 🔒
  Set of flags to non-custom references this custom property makes.
• References 🔒
  A struct holding information about the external references to that a custom property value may have.
• Substitution 🔒
• VarOrEnvReference 🔒
• VariableFallback 🔒
• VariableValue
  A value for a custom property is just a set of tokens.

Enums

• DeferFontRelativeCustomPropertyResolution
  Whether to defer resolving custom properties referencing font relative units.
• SingleNonCustomReference 🔒

Statics

• CHROME_ENVIRONMENT_VARIABLES 🔒
• ENVIRONMENT_VARIABLES 🔒

Functions

• compute_value 🔒
• compute_variable_value
  Given a potentially registered variable value turn it into a computed custom property value.
• do_substitute_chunk 🔒
• find_non_custom_references 🔒
• get_content_preferred_color_scheme 🔒
• get_safearea_inset_bottom 🔒
• get_safearea_inset_left 🔒
• get_safearea_inset_right 🔒
• get_safearea_inset_top 🔒
• get_scrollbar_inline_size 🔒
• handle_invalid_at_computed_value_time 🔒
• parse_declaration_value 🔒
  https://drafts.csswg.org/css-syntax-3/#typedef-declaration-value
• parse_declaration_value_block 🔒
  Like parse_declaration_value, but accept ! and ; since they are only invalid at the top level.
• parse_name
  Parse a custom property name.
• remove_and_insert_initial_value 🔒
  Removes the named registered custom property and inserts its uncomputed initial value.
• substitute
  Replace var() and env() functions, returning the resulting CSS string.
• substitute_all 🔒
  Resolve all custom properties to either substituted, invalid, or unset (meaning we should use the inherited value).
• substitute_internal 🔒
  Replace var() and env() functions. Return Err(..) for invalid at computed time.
• substitute_one_reference 🔒
• substitute_references_if_needed_and_apply 🔒
  Replace var() and env() 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.
• EnvironmentEvaluator 🔒
• 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.