@deephaven/golden-layout/dist/utils/EventEmitter.d.ts

A multi-screen javascript Layout manager

/**
 * A generic and very fast EventEmitter
 * implementation. On top of emitting the
 * actual event it emits an
 *
 * EventEmitter.ALL_EVENT
 *
 * event for every event triggered. This allows
 * to hook into it and proxy events forwards
 *
 * @constructor
 */
declare class EventEmitter {
    /**
     * The name of the event that's triggered for every other event
     *
     * usage
     *
     * myEmitter.on( EventEmitter.ALL_EVENT, function( eventName, argsArray ){
     * 	//do stuff
     * });
     */
    static ALL_EVENT: string;
    private _mSubscriptions;
    constructor();
    /**
     * Listen for events
     *
     * @param eventName The name of the event to listen to
     * @param callback The callback to execute when the event occurs
     * @param context The value of the this pointer within the callback function
     */
    on(eventName: string, callback: Function, context?: unknown): void;
    /**
     * Emit an event and notify listeners
     *
     * @param eventName The name of the event
     * @param args additional arguments that will be passed to the listener
     */
    emit(eventName: string, ...args: unknown[]): void;
    /**
     * Removes a listener for an event, or all listeners if no callback and context is provided.
     *
     * @param eventName The name of the event
     * @param callback The previously registered callback method (optional)
     * @param context  The previously registered context (optional)
     */
    unbind(eventName: string, callback?: Function, context?: unknown): void;
    /**
     * Alias for unbind
     */
    off: (eventName: string, callback?: Function, context?: unknown) => void;
    /**
     * Alias for emit
     */
    trigger: (eventName: string, ...args: unknown[]) => void;
}
export default EventEmitter;
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