Struct style::servo::selector_parser::ServoElementSnapshot

pub struct ServoElementSnapshot {
    pub state: Option<ElementState>,
    pub attrs: Option<Vec<(AttrIdentifier, AttrValue)>>,
    pub is_html_element_in_html_document: bool,
    pub class_changed: bool,
    pub id_changed: bool,
    pub other_attributes_changed: bool,
}

Servo's version of an element snapshot.

Fields

state: Option<ElementState>

The stored state of the element.

attrs: Option<Vec<(AttrIdentifier, AttrValue)>>

The set of stored attributes and its values.

is_html_element_in_html_document: bool

Whether this element is an HTML element in an HTML document.

class_changed: bool

Whether the class attribute changed or not.

id_changed: bool

Whether the id attribute changed or not.

other_attributes_changed: bool

Whether other attributes other than id or class changed or not.

Methods

impl ServoElementSnapshot

pub fn new(is_html_element_in_html_document: bool) -> Self

Create an empty element snapshot.

pub fn id_changed(&self) -> bool

Returns whether the id attribute changed or not.

pub fn class_changed(&self) -> bool

Returns whether the class attribute changed or not.

pub fn other_attr_changed(&self) -> bool

Returns whether other attributes other than id or class changed or not.

impl ServoElementSnapshot

pub fn attr_matches(
    &self,
    ns: &NamespaceConstraint<&Namespace>,
    local_name: &LocalName,
    operation: &AttrSelectorOperation<&String>
) -> bool

selectors::Element::attr_matches

Trait Implementations

impl Debug for ServoElementSnapshot

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl MallocSizeOf for ServoElementSnapshot

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl ElementSnapshot for ServoElementSnapshot

fn state(&self) -> Option<ElementState>

The state of the snapshot, if any.

fn has_attrs(&self) -> bool

If this snapshot contains attribute information.

fn id_attr(&self) -> Option<Atom>

The ID attribute per this snapshot. Should only be called if has_attrs() returns true.

fn has_class(&self, name: &Atom, case_sensitivity: CaseSensitivity) -> bool

Whether this snapshot contains the class name. Should only be called if has_attrs() returns true.

fn each_class<F>(&self, callback: F) where
    F: FnMut(&Atom), 

A callback that should be called for each class of the snapshot. Should only be called if has_attrs() returns true.

fn lang_attr(&self) -> Option<SelectorAttrValue>

The xml:lang="" or lang="" attribute value per this snapshot.