react-pivot/node_modules2/react/lib/LocalEventTrapMixin.js

React-Pivot is a data-grid component with pivot-table-like functionality for data display, filtering, and exploration.

/**
 * Copyright 2014, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule LocalEventTrapMixin
 */

"use strict";

var ReactBrowserEventEmitter = require("./ReactBrowserEventEmitter");

var accumulateInto = require("./accumulateInto");
var forEachAccumulated = require("./forEachAccumulated");
var invariant = require("./invariant");

function remove(event) {
  event.remove();
}

var LocalEventTrapMixin = {
  trapBubbledEvent:function(topLevelType, handlerBaseName) {
    ("production" !== process.env.NODE_ENV ? invariant(this.isMounted(), 'Must be mounted to trap events') : invariant(this.isMounted()));
    var listener = ReactBrowserEventEmitter.trapBubbledEvent(
      topLevelType,
      handlerBaseName,
      this.getDOMNode()
    );
    this._localEventListeners =
      accumulateInto(this._localEventListeners, listener);
  },

  // trapCapturedEvent would look nearly identical. We don't implement that
  // method because it isn't currently needed.

  componentWillUnmount:function() {
    if (this._localEventListeners) {
      forEachAccumulated(this._localEventListeners, remove);
    }
  }
};

module.exports = LocalEventTrapMixin;