Trait selectors::tree::Element

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pub trait Element: Sized + Clone + Debug {
    type Impl: SelectorImpl;

Show 28 methods // Required methods fn opaque(&self) -> OpaqueElement; fn parent_element(&self) -> Option<Self>; fn parent_node_is_shadow_root(&self) -> bool; fn containing_shadow_host(&self) -> Option<Self>; fn is_pseudo_element(&self) -> bool; fn prev_sibling_element(&self) -> Option<Self>; fn next_sibling_element(&self) -> Option<Self>; fn first_element_child(&self) -> Option<Self>; fn is_html_element_in_html_document(&self) -> bool; fn has_local_name( &self, local_name: &<Self::Impl as SelectorImpl>::BorrowedLocalName ) -> bool; fn has_namespace( &self, ns: &<Self::Impl as SelectorImpl>::BorrowedNamespaceUrl ) -> bool; fn is_same_type(&self, other: &Self) -> bool; fn attr_matches( &self, ns: &NamespaceConstraint<&<Self::Impl as SelectorImpl>::NamespaceUrl>, local_name: &<Self::Impl as SelectorImpl>::LocalName, operation: &AttrSelectorOperation<&<Self::Impl as SelectorImpl>::AttrValue> ) -> bool; fn match_non_ts_pseudo_class( &self, pc: &<Self::Impl as SelectorImpl>::NonTSPseudoClass, context: &mut MatchingContext<'_, Self::Impl> ) -> bool; fn match_pseudo_element( &self, pe: &<Self::Impl as SelectorImpl>::PseudoElement, context: &mut MatchingContext<'_, Self::Impl> ) -> bool; fn apply_selector_flags(&self, flags: ElementSelectorFlags); fn is_link(&self) -> bool; fn is_html_slot_element(&self) -> bool; fn has_id( &self, id: &<Self::Impl as SelectorImpl>::Identifier, case_sensitivity: CaseSensitivity ) -> bool; fn has_class( &self, name: &<Self::Impl as SelectorImpl>::Identifier, case_sensitivity: CaseSensitivity ) -> bool; fn imported_part( &self, name: &<Self::Impl as SelectorImpl>::Identifier ) -> Option<<Self::Impl as SelectorImpl>::Identifier>; fn is_part(&self, name: &<Self::Impl as SelectorImpl>::Identifier) -> bool; fn is_empty(&self) -> bool; fn is_root(&self) -> bool; // Provided methods fn pseudo_element_originating_element(&self) -> Option<Self> { ... } fn has_attr_in_no_namespace( &self, local_name: &<Self::Impl as SelectorImpl>::LocalName ) -> bool { ... } fn assigned_slot(&self) -> Option<Self> { ... } fn ignores_nth_child_selectors(&self) -> bool { ... }
}

Required Associated Types§

Required Methods§

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fn opaque(&self) -> OpaqueElement

Converts self into an opaque representation.

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fn parent_element(&self) -> Option<Self>

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fn parent_node_is_shadow_root(&self) -> bool

Whether the parent node of this element is a shadow root.

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fn containing_shadow_host(&self) -> Option<Self>

The host of the containing shadow root, if any.

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fn is_pseudo_element(&self) -> bool

Whether we’re matching on a pseudo-element.

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fn prev_sibling_element(&self) -> Option<Self>

Skips non-element nodes

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fn next_sibling_element(&self) -> Option<Self>

Skips non-element nodes

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fn first_element_child(&self) -> Option<Self>

Skips non-element nodes

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fn is_html_element_in_html_document(&self) -> bool

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fn has_local_name( &self, local_name: &<Self::Impl as SelectorImpl>::BorrowedLocalName ) -> bool

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fn has_namespace( &self, ns: &<Self::Impl as SelectorImpl>::BorrowedNamespaceUrl ) -> bool

Empty string for no namespace

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fn is_same_type(&self, other: &Self) -> bool

Whether this element and the other element have the same local name and namespace.

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fn attr_matches( &self, ns: &NamespaceConstraint<&<Self::Impl as SelectorImpl>::NamespaceUrl>, local_name: &<Self::Impl as SelectorImpl>::LocalName, operation: &AttrSelectorOperation<&<Self::Impl as SelectorImpl>::AttrValue> ) -> bool

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fn match_non_ts_pseudo_class( &self, pc: &<Self::Impl as SelectorImpl>::NonTSPseudoClass, context: &mut MatchingContext<'_, Self::Impl> ) -> bool

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fn match_pseudo_element( &self, pe: &<Self::Impl as SelectorImpl>::PseudoElement, context: &mut MatchingContext<'_, Self::Impl> ) -> bool

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fn apply_selector_flags(&self, flags: ElementSelectorFlags)

Sets selector flags on the elemnt itself or the parent, depending on the flags, which indicate what kind of work may need to be performed when DOM state changes.

Whether this element is a link.

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fn is_html_slot_element(&self) -> bool

Returns whether the element is an HTML element.

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fn has_id( &self, id: &<Self::Impl as SelectorImpl>::Identifier, case_sensitivity: CaseSensitivity ) -> bool

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fn has_class( &self, name: &<Self::Impl as SelectorImpl>::Identifier, case_sensitivity: CaseSensitivity ) -> bool

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fn imported_part( &self, name: &<Self::Impl as SelectorImpl>::Identifier ) -> Option<<Self::Impl as SelectorImpl>::Identifier>

Returns the mapping from the exportparts attribute in the reverse direction, that is, in an outer-tree -> inner-tree direction.

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fn is_part(&self, name: &<Self::Impl as SelectorImpl>::Identifier) -> bool

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fn is_empty(&self) -> bool

Returns whether this element matches :empty.

That is, whether it does not contain any child element or any non-zero-length text node. See http://dev.w3.org/csswg/selectors-3/#empty-pseudo

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fn is_root(&self) -> bool

Returns whether this element matches :root, i.e. whether it is the root element of a document.

Note: this can be false even if .parent_element() is None if the parent node is a DocumentFragment.

Provided Methods§

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fn pseudo_element_originating_element(&self) -> Option<Self>

The parent of a given pseudo-element, after matching a pseudo-element selector.

This is guaranteed to be called in a pseudo-element.

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fn has_attr_in_no_namespace( &self, local_name: &<Self::Impl as SelectorImpl>::LocalName ) -> bool

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fn assigned_slot(&self) -> Option<Self>

Returns the assigned element this element is assigned to.

Necessary for the ::slotted pseudo-class.

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fn ignores_nth_child_selectors(&self) -> bool

Returns whether this element should ignore matching nth child selector.

Implementors§