Trait components::elements::ComponentElement

pub trait ComponentElement: Element {
    fn build(&self) -> &dyn Widget;
    fn forget_child(&self, child: &dyn Element);
    fn mount(&self, parent: Option<&dyn Element>, new_slot: Option<Slot>);
    fn perform_rebuild();
    fn visit_children(&self, visitor: &dyn ElementVisitor);
}

Inherited from Element

Required Methods

fn build(&self) -> &dyn Widget

Subclasses should override this function to actually call the appropriate build function (e.g., StatelessWidget.build or State.build) for their widget.

fn forget_child(&self, child: &dyn Element)

Remove the given child from the element’s child list, in preparation for the child being reused elsewhere in the element tree.

fn mount(&self, parent: Option<&dyn Element>, new_slot: Option<Slot>)

Add this element to the tree in the given slot of the given parent.

fn perform_rebuild()

Calls the StatelessWidget.build method of the StatelessWidget object (for stateless widgets) or the State.build method of the State object (for stateful widgets) and then updates the widget tree.

fn visit_children(&self, visitor: &dyn ElementVisitor)

Calls the argument for each child. Must be overridden by subclasses that support having children.

Implementors