Struct EventDispatcher 

pub struct EventDispatcher { /* private fields */ }

Dispatches DOM events with capture/bubble propagation

Implementations

impl EventDispatcher

pub fn new() -> Self

pub fn node_tree(&self) -> &NodeTree

Access the node tree

pub fn node_tree_mut(&mut self) -> &mut NodeTree

Access the node tree mutably

pub fn add_event_listener( &mut self, node: NodeId, event_type: EventType, callback_id: usize, use_capture: bool, )

Add an event listener to a node

pub fn remove_event_listener( &mut self, node: NodeId, event_type: EventType, callback_id: usize, use_capture: bool, ) -> bool

Remove an event listener from a node

pub fn listeners_for(&self, node: NodeId) -> &[EventListener]

Get listeners for a node

pub fn clear_listeners(&mut self, node: NodeId)

Clear all listeners for a node

pub fn set_hit_boxes(&mut self, boxes: Vec<HitRect>)

Set the hit-test boxes (rebuilt after layout)

pub fn add_hit_box(&mut self, rect: HitRect)

Add a single hit-test box

pub fn clear_hit_boxes(&mut self)

Clear hit-test boxes

pub fn hit_test(&self, x: i32, y: i32) -> Option<NodeId>

Hit test: find the frontmost (last-drawn) node at pixel coordinates. Returns None if no node at that position.

pub fn take_invoked(&mut self) -> Vec<(usize, EventType)>

Get the list of invoked callbacks (callback_id, event_type) from last dispatch

pub fn dispatch(&mut self, event: &mut Event) -> bool

Dispatch an event through the capture → target → bubble phases. Returns true if the default action should be prevented.

pub fn dispatch_click( &mut self, x: i32, y: i32, button: u8, ) -> Option<(NodeId, bool)>

Convenience: dispatch a mouse click at pixel coordinates. Performs hit-test, then dispatches Click event. Returns (target_node, default_prevented) or None if miss.

pub fn dispatch_mouse_move(&mut self, x: i32, y: i32) -> Option<(NodeId, bool)>

Convenience: dispatch a mouse move event

pub fn dispatch_key( &mut self, target: NodeId, event_type: EventType, key_code: u32, char_code: u32, modifiers: u8, ) -> bool

Convenience: dispatch a keyboard event to a focused node

Trait Implementations

impl Default for EventDispatcher

fn default() -> Self

Returns the “default value” for a type.