react-native/Libraries/CustomComponents/NavigationExperimental/NavigationAnimatedValueSubs...

49 lines
1.9 KiB
JavaScript

/**
* Copyright (c) 2015, Facebook, Inc. All rights reserved.
*
* Facebook, Inc. ("Facebook") owns all right, title and interest, including
* all intellectual property and other proprietary rights, in and to the React
* Native CustomComponents software (the "Software"). Subject to your
* compliance with these terms, you are hereby granted a non-exclusive,
* worldwide, royalty-free copyright license to (1) use and copy the Software;
* and (2) reproduce and distribute the Software as part of your own software
* ("Your Software"). Facebook reserves all rights not expressly granted to
* you in this license agreement.
*
* THE SOFTWARE AND DOCUMENTATION, IF ANY, ARE PROVIDED "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES (INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE) ARE DISCLAIMED.
* IN NO EVENT SHALL FACEBOOK OR ITS AFFILIATES, OFFICERS, DIRECTORS OR
* EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THE SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @providesModule NavigationAnimatedValueSubscription
* @flow
*/
'use strict';
import type {
NavigationAnimatedValue
} from 'NavigationTypeDefinition';
class NavigationAnimatedValueSubscription {
_value: NavigationAnimatedValue;
_token: string;
constructor(value: NavigationAnimatedValue, callback: Function) {
this._value = value;
this._token = value.addListener(callback);
}
remove(): void {
this._value.removeListener(this._token);
}
}
module.exports = NavigationAnimatedValueSubscription;