@solid-primitives/event-bus/dist/eventStack.js

A collection of SolidJS primitives providing various features of a pubsub/event-emitter/event-bus.

import { drop, filterOut, push } from "@solid-primitives/utils/immutable";
import { createSignal } from "solid-js";
import { createEventBus } from "./eventBus.js";
export function createEventStack(config = {}) {
    const { toValue = (e) => e, length = 0 } = config;
    const [stack, setValue] = /*#__PURE__*/ createSignal([]);
    const eventEventBus = createEventBus();
    const valueEventBus = createEventBus();
    eventEventBus.listen(event => {
        const value = toValue(event, stack());
        setValue(prev => {
            const list = push(prev, value);
            return length && list.length > length ? drop(list) : list;
        });
        valueEventBus.emit({
            event: value,
            stack: stack(),
            remove: () => remove(value),
        });
    });
    const remove = value => !!setValue(p => filterOut(p, value)).removed;
    return {
        clear: valueEventBus.clear,
        listen: valueEventBus.listen,
        emit: eventEventBus.emit,
        value: stack,
        setValue,
        remove,
    };
}