Enum style::stylesheets::container_rule::ContainerSizeQuery

pub enum ContainerSizeQuery<'a> {
    NotEvaluated(Box<dyn Fn() -> ContainerSizeQueryResult + 'a>),
    Evaluated(ContainerSizeQueryResult),
}

Unevaluated lazy container size query.

Variants

NotEvaluated(Box<dyn Fn() -> ContainerSizeQueryResult + 'a>)

Query prior to evaluation.

Evaluated(ContainerSizeQueryResult)

Cached evaluated result.

Implementations

impl<'a> ContainerSizeQuery<'a>

fn evaluate_potential_size_container<E>( e: E, originating_element_style: Option<&ComputedValues>, ) -> TraversalResult<ContainerSizeQueryResult>

where E: TElement,

fn lookup<E>( element: E, originating_element_style: Option<&ComputedValues>, ) -> ContainerSizeQueryResult

where E: TElement + 'a,

Find the query container size for a given element. Meant to be used as a callback for new().

pub fn for_element<E>( element: E, known_parent_style: Option<&'a ComputedValues>, is_pseudo: bool, ) -> Self

where E: TElement + 'a,

Create a new instance of the container size query for given element, with a deferred lookup callback.

pub fn for_option_element<E>( element: Option<E>, known_parent_style: Option<&'a ComputedValues>, is_pseudo: bool, ) -> Self

where E: TElement + 'a,

Create a new instance, but with optional element.

pub fn none() -> Self

Create a query that evaluates to empty, for cases where container size query is not required.

pub fn get(&mut self) -> ContainerSizeQueryResult

Get the result of the container size query, doing the lookup if called for the first time.