Enum style::rule_tree::StyleSource

pub enum StyleSource {
    Style(Arc<Locked<StyleRule>>),
    Declarations(Arc<Locked<PropertyDeclarationBlock>>),
    None,
}

A style source for the rule node. It can either be a CSS style rule or a declaration block.

Note that, even though the declaration block from inside the style rule could be enough to implement the rule tree, keeping the whole rule provides more debuggability, and also the ability of show those selectors to devtools.

Variants

Style(Arc<Locked<StyleRule>>)

A style rule stable pointer.

Declarations(Arc<Locked<PropertyDeclarationBlock>>)

A declaration block stable pointer.

None

Indicates no style source. Used to save an Option wrapper around the stylesource in RuleNode

Methods

impl StyleSource

pub fn read<'a>(
    &'a self,
    guard: &'a SharedRwLockReadGuard
) -> &'a PropertyDeclarationBlock

Read the style source guard, and obtain thus read access to the underlying property declaration block.

pub fn is_some(&self) -> bool

Indicates if this StyleSource has a value

Trait Implementations

impl Clone for StyleSource

fn clone(&self) -> StyleSource

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for StyleSource

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

Formats the value using the given formatter.

impl PartialEq for StyleSource

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

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.