Struct script::layout_dom::node::ServoThreadSafeLayoutNode

pub struct ServoThreadSafeLayoutNode<'dom> {
    pub(super) node: ServoLayoutNode<'dom>,
    pub(super) pseudo: PseudoElementType,
}

A wrapper around a ServoLayoutNode that can be used safely on different threads. It’s very important that this never mutate anything except this wrapped node and never access any other node apart from its parent.

Fields

node: ServoLayoutNode<'dom>

The wrapped ServoLayoutNode.

pseudo: PseudoElementType

The pseudo-element type, with (optionally) a specified display value to override the stylesheet.

Implementations

impl<'dom> ServoThreadSafeLayoutNode<'dom>

pub fn new(node: ServoLayoutNode<'dom>) -> Self

Creates a new ServoThreadSafeLayoutNode from the given ServoLayoutNode.

unsafe fn get_jsmanaged(&self) -> LayoutDom<'dom, Node>

Returns the interior of this node as a LayoutDom. This is highly unsafe for layout to call and as such is marked unsafe.

unsafe fn dangerous_first_child(&self) -> Option<Self>

Get the first child of this node. Important: this is not safe for layout to call, so it should never be made public.

unsafe fn dangerous_next_sibling(&self) -> Option<Self>

Get the next sibling of this node. Important: this is not safe for layout to call, so it should never be made public.

Trait Implementations

impl<'dom> Clone for ServoThreadSafeLayoutNode<'dom>

fn clone(&self) -> ServoThreadSafeLayoutNode<'dom>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'dom> Debug for ServoThreadSafeLayoutNode<'dom>

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

Formats the value using the given formatter.

impl<'dom> NodeInfo for ServoThreadSafeLayoutNode<'dom>

fn is_element(&self) -> bool

Whether this node is an element.

fn is_text_node(&self) -> bool

Whether this node is a text node.

impl<'dom> PartialEq for ServoThreadSafeLayoutNode<'dom>

fn eq(&self, other: &ServoThreadSafeLayoutNode<'dom>) -> 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 !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'dom> ThreadSafeLayoutNode<'dom> for ServoThreadSafeLayoutNode<'dom>

type ConcreteNode = ServoLayoutNode<'dom>

type ConcreteThreadSafeLayoutElement = ServoThreadSafeLayoutElement<'dom>

type ConcreteElement = ServoLayoutElement<'dom>

type ChildrenIterator = ServoThreadSafeLayoutNodeChildrenIterator<'dom>

fn opaque(&self) -> OpaqueNode

Converts self into an OpaqueNode.

fn type_id(&self) -> Option<LayoutNodeType>

Returns the type ID of this node. Returns None if this is a pseudo-element; otherwise, returns Some.

fn parent_style(&self) -> Arc<ComputedValues>

Returns the style for a text node. This is computed on the fly from the parent style to avoid traversing text nodes in the style system.

fn debug_id(self) -> usize

fn children(&self) -> LayoutIterator<Self::ChildrenIterator>

Returns an iterator over this node’s children.

fn as_element(&self) -> Option<ServoThreadSafeLayoutElement<'dom>>

Returns a ThreadSafeLayoutElement if this is an element, None otherwise.

fn as_html_element(&self) -> Option<ServoThreadSafeLayoutElement<'dom>>

Returns a ThreadSafeLayoutElement if this is an element in an HTML namespace, None otherwise.

fn style_data(&self) -> Option<&'dom StyleData>

Get the StyleData for this node. Returns None if the node is unstyled.

fn layout_data(&self) -> Option<&'dom GenericLayoutData>

Get the layout data of this node, attempting to downcast it to the desired type. Returns None if there is no layout data or it isn’t of the desired type.

fn is_ignorable_whitespace(&self, context: &SharedStyleContext<'_>) -> bool

fn unsafe_get(self) -> Self::ConcreteNode

Returns access to the underlying LayoutNode. This is breaks the abstraction barrier of ThreadSafeLayout wrapper layer, and can lead to races if not used carefully.

fn node_text_content(self) -> Cow<'dom, str>

fn selection(&self) -> Option<Range<ByteIndex>>

If the insertion point is within this node, returns it. Otherwise, returns None.

fn image_url(&self) -> Option<ServoUrl>

If this is an image element, returns its URL. If this is not an image element, fails.

fn image_density(&self) -> Option<f64>

If this is an image element, returns its current-pixel-density. If this is not an image element, fails.

fn image_data(&self) -> Option<(Option<StdArc<Image>>, Option<ImageMetadata>)>

If this is an image element, returns its image data. Otherwise, returns None.

fn canvas_data(&self) -> Option<HTMLCanvasData>

fn media_data(&self) -> Option<HTMLMediaData>

fn svg_data(&self) -> Option<SVGSVGData>

fn iframe_browsing_context_id(&self) -> Option<BrowsingContextId>

If this node is an iframe element, returns its browsing context ID. If this node is not an iframe element, fails. Returns None if there is no nested browsing context.

fn iframe_pipeline_id(&self) -> Option<PipelineId>

If this node is an iframe element, returns its pipeline ID. If this node is not an iframe element, fails. Returns None if there is no nested browsing context.

fn get_span(&self) -> Option<u32>

fn get_colspan(&self) -> Option<u32>

fn get_rowspan(&self) -> Option<u32>

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

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

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

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

fn get_pseudo_element_type(&self) -> PseudoElementType

fn style(&self, context: &SharedStyleContext<'_>) -> Arc<ComputedValues>

fn selected_style(&self) -> Arc<ComputedValues>

fn is_content(&self) -> bool

Returns true if this node contributes content. This is used in the implementation of empty_cells per CSS 2.1 § 17.6.1.1.

fn fragment_type(&self) -> FragmentType

impl<'dom> Copy for ServoThreadSafeLayoutNode<'dom>

impl<'dom> StructuralPartialEq for ServoThreadSafeLayoutNode<'dom>