Struct Component

pub struct Component {

    pub node: Option<SyntaxNode>,
    pub id: SmolStr,
    pub root_element: ElementRc,
    pub parent_element: Weak<RefCell<Element>>,
    pub optimized_elements: RefCell<Vec<ElementRc>>,
    pub root_constraints: RefCell<LayoutConstraints>,
    pub child_insertion_point: RefCell<Option<ChildrenInsertionPoint>>,
    pub init_code: RefCell<InitCode>,
    pub popup_windows: RefCell<Vec<PopupWindow>>,
    pub timers: RefCell<Vec<Timer>>,
    pub menu_item_tree: RefCell<Vec<Rc<Component>>>,
    pub inherits_popup_window: Cell<bool>,
    pub exported_global_names: RefCell<Vec<ExportedName>>,
    pub used: Cell<bool>,
    pub private_properties: RefCell<Vec<(SmolStr, Type)>>,
}

A component is a type in the language which can be instantiated, Or is materialized for repeated expression.

Fields

node: Option<SyntaxNode>

id: SmolStr

root_element: ElementRc

parent_element: Weak<RefCell<Element>>

The parent element within the parent component if this component represents a repeated element

optimized_elements: RefCell<Vec<ElementRc>>

List of elements that are not attached to the root anymore because they have been optimized away, but their properties may still be in use

root_constraints: RefCell<LayoutConstraints>

The layout constraints of the root item

child_insertion_point: RefCell<Option<ChildrenInsertionPoint>>

When creating this component and inserting “children”, append them to the children of the element pointer to by this field.

init_code: RefCell<InitCode>

popup_windows: RefCell<Vec<PopupWindow>>

timers: RefCell<Vec<Timer>>

menu_item_tree: RefCell<Vec<Rc<Component>>>

inherits_popup_window: Cell<bool>

This component actually inherits PopupWindow (although that has been changed to a Window by the lower_popups pass)

exported_global_names: RefCell<Vec<ExportedName>>

The names under which this component should be accessible if it is a global singleton and exported.

used: Cell<bool>

True if this component is used as a sub-component by at least one other component.

private_properties: RefCell<Vec<(SmolStr, Type)>>

The list of properties (name and type) declared as private in the component. This is used to issue better error in the generated code if the property is used.

Implementations

impl Component

pub fn from_node( node: Component, diag: &mut BuildDiagnostics, tr: &TypeRegister, ) -> Rc<Self>

pub fn is_global(&self) -> bool

This component is a global component introduced with the “global” keyword

pub fn global_aliases(&self) -> Vec<SmolStr>

Returns the names of aliases to global singletons, exactly as specified in the .slint markup (not normalized).

pub fn repeater_count(&self) -> u32

Trait Implementations

impl Debug for Component

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

Formats the value using the given formatter.

impl Default for Component

fn default() -> Component

Returns the “default value” for a type.