js/speaker.js

37 lines
609 B
JavaScript

class Speaker {
#callbacks = new Set()
#immediate
#scheduled = []
constructor(immediate) {
this.#immediate = immediate
}
listen(callback) {
this.#callbacks.add(callback)
}
speak(...args) {
if (this.#immediate) {
for (let callback of this.#callbacks) {
callback(...args)
}
} else {
if (!this.#scheduled.length) {
queueMicrotask(() => {
for (let callback of this.#callbacks) {
callback(...args)
}
this.#scheduled = []
})
}
this.#scheduled.push(args)
}
}
silence(callback) {
this.#callbacks.delete(callbacks)
}
}
export default Speaker