react-native/Libraries/CustomComponents/NavigationExperimental/NavigationHeaderBackButton.js

68 lines
1.9 KiB
JavaScript

/**
* Copyright (c) 2013-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.
*
* The examples provided by Facebook are for non-commercial testing and
* evaluation purposes only.
*
* Facebook reserves all rights not expressly granted.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL
* FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* @providesModule NavigationHeaderBackButton
* @flow
*/
'use strict';
const React = require('react');
const ReactNative = require('react-native');
const {
I18nManager,
Image,
Platform,
StyleSheet,
TouchableOpacity,
} = ReactNative;
type Props = {
onPress: Function,
};
const NavigationHeaderBackButton = (props: Props) => (
<TouchableOpacity style={styles.buttonContainer} onPress={props.onPress}>
<Image style={styles.button} source={require('./assets/back-icon.png')} />
</TouchableOpacity>
);
NavigationHeaderBackButton.propTypes = {
onPress: React.PropTypes.func.isRequired
};
const styles = StyleSheet.create({
buttonContainer: {
flex: 1,
flexDirection: 'row',
alignItems: 'center',
justifyContent: 'center',
},
button: {
height: 24,
width: 24,
margin: Platform.OS === 'ios' ? 10 : 16,
resizeMode: 'contain',
transform: [{scaleX: I18nManager.isRTL ? -1 : 1}],
}
});
module.exports = NavigationHeaderBackButton;