Enum style::matching::ChildRestyleRequirement

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pub enum ChildRestyleRequirement {
    CanSkipCascade = 0,
    MustCascadeChildrenIfInheritResetStyle = 1,
    MustCascadeChildren = 2,
    MustCascadeDescendants = 3,
    MustMatchDescendants = 4,
}
Expand description

Whether or not newly computed values for an element need to be cascaded to children (or children might need to be re-matched, e.g., for container queries).

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CanSkipCascade = 0

Old and new computed values were the same, or we otherwise know that we won’t bother recomputing style for children, so we can skip cascading the new values into child elements.

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MustCascadeChildrenIfInheritResetStyle = 1

The same as MustCascadeChildren, but we only need to actually recascade if the child inherits any explicit reset style.

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MustCascadeChildren = 2

Old and new computed values were different, so we must cascade the new values to children.

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MustCascadeDescendants = 3

The same as MustCascadeChildren, but for the entire subtree. This is used to handle root font-size updates needing to recascade the whole document.

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MustMatchDescendants = 4

We need to re-match the whole subttree. This is used to handle container query relative unit changes for example. Container query size changes also trigger re-match, but after layout.

Trait Implementations§

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impl Clone for ChildRestyleRequirement

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fn clone(&self) -> ChildRestyleRequirement

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ChildRestyleRequirement

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Ord for ChildRestyleRequirement

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fn cmp(&self, other: &ChildRestyleRequirement) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl PartialEq for ChildRestyleRequirement

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fn eq(&self, other: &ChildRestyleRequirement) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for ChildRestyleRequirement

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fn partial_cmp(&self, other: &ChildRestyleRequirement) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Copy for ChildRestyleRequirement

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impl Eq for ChildRestyleRequirement

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impl StructuralPartialEq for ChildRestyleRequirement

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impl<T> Any for T
where T: 'static + ?Sized,

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impl<Q, K> Comparable<K> for Q
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fn compare(&self, key: &K) -> Ordering

Compare self to key and return their ordering.
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fn equivalent(&self, key: &K) -> bool

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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