Trait PropertyObserverContainer

pub trait PropertyObserverContainer {
    // Required methods
    fn observe_with_handle<F>(&self, name: &str, subscriber: F) -> u128
       where F: FnMut(&Value) + 'static + Send;
    fn propagate(&self, name: &str, target_property_name: &str);
    fn remove_observer(&self, name: &str, handle_id: u128);
    fn remove_observers(&self, name: &str);
    fn remove_all_observers(&self);
}

A PropertyObserverContainer manages the observers of a PropertyContainer.

Internally it stores the handle ids of created observers. This makes it possible to remove the observers for a single property by name or for all properties.

Required Methods

fn observe_with_handle<F>(&self, name: &str, subscriber: F) -> u128

where F: FnMut(&Value) + 'static + Send,

Observes the property with the given name. A handle will be automatically created and stored

fn propagate(&self, name: &str, target_property_name: &str)

Propagates the value from the property with the given name to the target property with the given name.

fn remove_observer(&self, name: &str, handle_id: u128)

Removes the observers of the property with the given name and the given observer handle.

fn remove_observers(&self, name: &str)

Removes all observers of the property with the given name that are managed by this PropertyObserverContainer.

fn remove_all_observers(&self)

Removes all observers that are managed by this PropertyObserverContainer.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors