Add Ref class to follow reactive elements

This commit is contained in:
Talia 2024-02-29 15:29:36 +01:00
parent d53e6c7fd5
commit 6d4e398336

View file

@ -152,6 +152,25 @@ export const reactiveElement = observable => {
return element return element
} }
/** A reference to a reactive element that follows it around through changes */
export class Ref {
#current
/** @param {Element|Text} target A reactive element to follow */
constructor(target) {
this.#current = target
this.follow(target)
}
follow(target) {
target.addEventListener("replaced", ({next}) => {
this.#current = next
this.follow(next)
})
}
deref() { return this.#current }
}
/** Set an attribute on an element /** Set an attribute on an element
* @param {Element} element * @param {Element} element
* @param {string} attribute * @param {string} attribute