react-native/Libraries/ReactIOS/ReactIOSGlobalInteractionHa...

34 lines
1017 B
JavaScript

/**
* Copyright (c) 2015-present, 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 ReactIOSGlobalInteractionHandler
* @flow
*/
'use strict';
var InteractionManager = require('InteractionManager');
// Interaction handle is created/cleared when responder is granted or
// released/terminated.
var interactionHandle = null;
var ReactIOSGlobalInteractionHandler = {
onChange: function(numberActiveTouches: number) {
if (numberActiveTouches === 0) {
if (interactionHandle) {
InteractionManager.clearInteractionHandle(interactionHandle);
interactionHandle = null;
}
} else if (!interactionHandle) {
interactionHandle = InteractionManager.createInteractionHandle();
}
}
};
module.exports = ReactIOSGlobalInteractionHandler;