@aappddeevv/dynamics-client-ui/lib/Dynamics/EventBus.js

## What is it? A library to help you create great dynamics applications.

"use strict";
/**
 * Simple Dynamics event bus. Designed to be used for simple needs
 * and attached to a window that sub-iframes can access easily so their
 * WebResources can listen for events from across a Dynamics form
 * e.g. a grid select needs.
 */
Object.defineProperty(exports, "__esModule", { value: true });
/** Small pubsub, synchronous dispatch. */
class EventBus {
    constructor() {
        this.subscribers = [];
    }
    unsubscribe(key) {
        this.subscribers = this.subscribers.filter(s => s !== key);
    }
    /** Subscriber is just a thunk. Thunk returned unsubscribes. */
    subscribe(subscriber) {
        if (subscriber)
            this.subscribers.push(subscriber);
        return (() => this.unsubscribe(subscriber));
    }
    /** Dispatch an event. All subscribers get all events like redux. */
    dispatch(event) {
        this.subscribers.forEach(sub => {
            if (sub)
                sub(event);
        });
    }
}
exports.EventBus = EventBus;
exports.default = EventBus;
// where are we getting loaded? it's a subframe I know that...
//console.log("frameElement", window.frameElement)
//# sourceMappingURL=EventBus.js.map