Trait BindDescriptor

pub trait BindDescriptor {
    type Event: EventDescriptor;
    type ValueTy: Into<JsValue> + Clone;

    const TARGET_PROPERTY: &'static str;
    const CONVERT_FROM_JS: for<'a> fn(&'a JsValue) -> Option<Self::ValueTy>;
}

Description for a bind-able attribute/property.

Required Associated Constants

const TARGET_PROPERTY: &'static str

The name of the property to which we are binding.

const CONVERT_FROM_JS: for<'a> fn(&'a JsValue) -> Option<Self::ValueTy>

Function for converting from JS to Rust type.

Required Associated Types

type Event: EventDescriptor

The event which we listen to to update the value.

type ValueTy: Into<JsValue> + Clone

The value of the signal that drives the attribute/property.

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

impl BindDescriptor for checked

const TARGET_PROPERTY: &'static str = "checked"

const CONVERT_FROM_JS: for<'a> fn(&'a JsValue) -> Option<Self::ValueTy> = {wasm_bindgen::JsValue::as_bool as for<'a> fn(&'a wasm_bindgen::JsValue) -> std::option::Option<<bind::checked as bind::BindDescriptor>::ValueTy>}

type Event = change

type ValueTy = bool

impl BindDescriptor for value

const TARGET_PROPERTY: &'static str = "value"

const CONVERT_FROM_JS: for<'a> fn(&'a JsValue) -> Option<Self::ValueTy> = {wasm_bindgen::JsValue::as_string as for<'a> fn(&'a wasm_bindgen::JsValue) -> std::option::Option<<bind::value as bind::BindDescriptor>::ValueTy>}

type Event = input

type ValueTy = String

impl BindDescriptor for valueAsNumber

const TARGET_PROPERTY: &'static str = "valueAsNumber"

const CONVERT_FROM_JS: for<'a> fn(&'a JsValue) -> Option<Self::ValueTy> = {wasm_bindgen::JsValue::as_f64 as for<'a> fn(&'a wasm_bindgen::JsValue) -> std::option::Option<<bind::valueAsNumber as bind::BindDescriptor>::ValueTy>}

type Event = input

type ValueTy = f64