Struct BaseInstance

pub struct BaseInstance {
    pub handler_registry: Option<Rc<RefCell<HandlerRegistry>>>,
    pub instance_prototypical_properties_factory: Box<dyn Fn(Rc<RuntimePropertiesStackFrame>, Option<Rc<ExpandedNode>>) -> Option<Rc<RefCell<PaxAny>>>>,
    pub instance_prototypical_common_properties_factory: Box<dyn Fn(Rc<RuntimePropertiesStackFrame>, Option<Rc<ExpandedNode>>) -> Option<Rc<RefCell<CommonProperties>>>>,
    pub template_node_identifier: Option<UniqueTemplateNodeIdentifier>,
    pub properties_scope_factory: Option<Box<dyn Fn(Rc<RefCell<PaxAny>>) -> HashMap<String, Variable>>>,
    /* private fields */
}

Fields

handler_registry: Option<Rc<RefCell<HandlerRegistry>>>

instance_prototypical_properties_factory: Box<dyn Fn(Rc<RuntimePropertiesStackFrame>, Option<Rc<ExpandedNode>>) -> Option<Rc<RefCell<PaxAny>>>>

instance_prototypical_common_properties_factory: Box<dyn Fn(Rc<RuntimePropertiesStackFrame>, Option<Rc<ExpandedNode>>) -> Option<Rc<RefCell<CommonProperties>>>>

template_node_identifier: Option<UniqueTemplateNodeIdentifier>

properties_scope_factory: Option<Box<dyn Fn(Rc<RefCell<PaxAny>>) -> HashMap<String, Variable>>>

Implementations

impl BaseInstance

pub fn new(args: InstantiationArgs, flags: InstanceFlags) -> Self

pub fn get_handler_registry(&self) -> Option<Rc<RefCell<HandlerRegistry>>>

Returns a handle to a node-managed HandlerRegistry, a mapping between event types and handlers. Each node that can handle events is responsible for implementing this; Component instances generate the necessary code to wire up userland events like <SomeNode @click=self.handler>. Primitives must handle this explicitly, see e.g. [pax_std::drawing::rectangle::RectangleInstance#get_handler_registry].

pub fn get_instance_children(&self) -> &InstanceNodePtrList

Return the list of instance nodes that are children of this one. Intuitively, this will return instance nodes mapping exactly to the template node definitions. For Components, get_instance_children returns the root(s) of its template, not its slot_children. (see [get_slot_children] for the way to retrieve the latter.)

pub fn flags(&self) -> &InstanceFlags