@lightningjs/sdk/src/Router/utils/emit.js

The Lightning-SDK helps you build great Lightning-based TV apps!

/*
 * If not stated otherwise in this file or this component's LICENSE file the
 * following copyright and licenses apply:
 *
 * Copyright 2020 Metrological
 *
 * Licensed under the Apache License, Version 2.0 (the License);
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { isArray, isFunction, ucfirst } from './helpers'

export default (page, events = [], params = {}) => {
  if (!isArray(events)) {
    events = [events]
  }
  events.forEach(e => {
    const event = `_on${ucfirst(e)}`
    if (isFunction(page[event])) {
      page[event](params)
    }
  })
}