export class EventManager { 
    constructor() {
        this.listeners = [];
    }

    add(ele, type, handler, options) {
        ele.addEventListener(type, handler, options);
        this.listeners.push({ ele, type, handler, options });
    }

    remove(ele, type, handler, options) {
        ele.removeEventListener(type, handler, options);
        this.listeners = this.listeners.filter(
            (listener) =>
                listener.ele !== ele ||
                listener.type !== type ||
                listener.handler !== handler ||
                listener.options !== options
        );
    }

    removeAll() {
        this.listeners.forEach((listener) => {
            listener.ele.removeEventListener(
                listener.type,
                listener.handler,
                listener.options
            );
        });
        this.listeners = [];
    }
}