Struct AccessibilityNode 

struct AccessibilityNode {
    id: NodeId,
    accesskit_node: Node,
    opaque_node: Option<OpaqueNode>,
    updated: bool,
}

Fields

id: NodeId

The unique ID for the node. This is used both as a key in AccessibilityTree’s cache of nodes, and as an identifier in accesskit datastructures: accesskit::Nodes, accesskit::TreeUpdates and accesskit::ActionRequests.

accesskit_node: Node

The computed accesskit::Node data. This will be copied and serialized into a accesskit::TreeUpdate whenever it is changed during an update.

opaque_node: Option<OpaqueNode>

The OpaqueNode for the DOM node which corresponds to this accessibility node, if any. An accessibility node may not correspond to a DOM node if it corresponds to a pseudo-element, or in a test.

updated: bool

Whether this node has been updated in the current tree update. This is reset to false when the node is added to the AccessibilityUpdate - see AccessibilityUpdate::add().

Implementations

impl AccessibilityNode

fn new(id: NodeId) -> Self

fn new_with_role(id: NodeId, role: Role) -> Self

fn update_descendants<'dom>( &mut self, dom_node: &ServoLayoutNode<'dom>, tree: &mut AccessibilityTree, update: &mut AccessibilityUpdate, ) -> bool

fn set_subtree_state_change( &self, change: TreeChange, tree: &mut AccessibilityTree, update: &mut AccessibilityUpdate, )

Recursively mark this subtree as having the given TreeChange .

This is used when a node is Moved or Removed, since its entire subtree will also need to be marked accordingly. When a node is New, it’s marked as such when it is created. We shouldn’t call this method in that case, since it may have descendants which are not being created in this update and shouldn’t have a New state. Any descendants which are new will already have their New state set when they are created.

Note: if a node is moved, the requested change must always be Moved(Pending): the logic in this method will determine whether the move is Complete and set the stored value accordingly.

fn update_node( &mut self, dom_node: &ServoLayoutNode<'_>, tree: &mut AccessibilityTree, any_descendant_updated: bool, )

fn label_from_descendants(&self, tree: &AccessibilityTree) -> Option<String>

fn print(&self, tree: &AccessibilityTree, print_tree: &mut PrintTree)

fn children(&self) -> &[NodeId]

fn set_children(&mut self, children: Vec<NodeId>)

fn role(&self) -> Role

fn set_role(&mut self, role: Role)

fn label(&self) -> Option<&str>

fn set_label(&mut self, label: &str)

fn html_tag(&self) -> Option<&str>

fn set_html_tag(&mut self, html_tag: &str)

fn value(&self) -> Option<&str>

fn set_value(&mut self, value: &str)

Trait Implementations

impl Debug for AccessibilityNode

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

Formats the value using the given formatter.