Struct DelayedBinding 

pub struct DelayedBinding;

Provides delayed bindings for elements.

The markup engine applies its bindings in a delayed manner: bindings are only applied when an element has finished initializing. Applying bindings as soon as elements are created would mean that long-form bindings (binding objects whose properties are set one by one after creation) don’t work, as the binding would be applied to the property before the properties of the binding object are set.

Implementations

impl DelayedBinding

pub fn add( target: &StyledElement, property: &'static FerroProperty, binding: Rc<dyn BindingBase>, )

Adds a delayed binding to an element: the binding is applied to property when the element has finished initializing, or immediately if it already has.

pub fn add_value( target: &StyledElement, property: Rc<dyn IPropertyInfo>, value: impl Fn(&StyledElement) -> Option<BoxedValue> + 'static, ) -> Result<(), BindingError>

Adds a delayed value to an element: value is evaluated and written to property when the element has finished initializing, or immediately if it already has.

When the value is written immediately, an error from the property setter is returned (the equivalent of the setter throwing to the caller); when it is written later, the error is logged.

pub fn apply_bindings(control: &StyledElement)

Applies any delayed bindings to an element.