683 lines
18 KiB
JavaScript
683 lines
18 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow
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* @format
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* @providesModule RTLExample
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*/
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'use strict';
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const React = require('react');
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const ReactNative = require('react-native');
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const {
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Alert,
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Animated,
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I18nManager,
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Image,
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PanResponder,
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PixelRatio,
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ScrollView,
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StyleSheet,
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Text,
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TouchableWithoutFeedback,
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Switch,
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View,
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Button,
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} = ReactNative;
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const Platform = require('Platform');
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const RNTesterPage = require('./RNTesterPage');
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const RNTesterBlock = require('./RNTesterBlock');
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type State = {
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toggleStatus: any,
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pan: Object,
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linear: Object,
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isRTL: boolean,
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windowWidth: number,
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};
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const SCALE = PixelRatio.get();
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const IMAGE_DIMENSION = 100 * SCALE;
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const IMAGE_SIZE = [IMAGE_DIMENSION, IMAGE_DIMENSION];
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const IS_RTL = I18nManager.isRTL;
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function ListItem(props) {
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return (
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<View style={styles.row}>
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<View style={styles.column1}>
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<Image source={props.imageSource} style={styles.icon} />
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</View>
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<View style={styles.column2}>
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<View style={styles.textBox}>
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<Text>Text Text Text</Text>
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</View>
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</View>
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<View style={styles.column3}>
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<View style={styles.smallButton}>
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<Text style={styles.fontSizeSmall}>Button</Text>
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</View>
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</View>
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</View>
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);
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}
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function TextAlignmentExample(props) {
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return (
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<RNTesterBlock title={props.title} description={props.description}>
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<View>
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<Text style={props.style}>
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Left-to-Right language without text alignment.
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</Text>
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<Text style={props.style}>
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{'\u0645\u0646 \u0627\u0644\u064A\u0645\u064A\u0646 ' +
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'\u0625\u0644\u0649 \u0627\u0644\u064A\u0633\u0627\u0631 ' +
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'\u0627\u0644\u0644\u063A\u0629 \u062F\u0648\u0646 ' +
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'\u0645\u062D\u0627\u0630\u0627\u0629 \u0627\u0644\u0646\u0635'}
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</Text>
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<Text style={props.style}>
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{'\u05DE\u05D9\u05DE\u05D9\u05DF \u05DC\u05E9\u05DE\u05D0\u05DC ' +
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'\u05D4\u05E9\u05E4\u05D4 \u05D1\u05DC\u05D9 ' +
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'\u05D9\u05D9\u05E9\u05D5\u05E8 \u05D8\u05E7\u05E1\u05D8'}
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</Text>
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</View>
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</RNTesterBlock>
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);
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}
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function AnimationBlock(props) {
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return (
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<View style={styles.block}>
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<TouchableWithoutFeedback onPress={props.onPress}>
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<Animated.Image
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style={[styles.img, props.imgStyle]}
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source={require('./Thumbnails/poke.png')}
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/>
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</TouchableWithoutFeedback>
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</View>
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);
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}
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type RTLSwitcherComponentState = {|
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isRTL: boolean,
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|};
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function withRTLState(Component) {
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return class extends React.Component<*, RTLSwitcherComponentState> {
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constructor(...args) {
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super(...args);
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this.state = {
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isRTL: IS_RTL,
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};
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}
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render() {
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const setRTL = isRTL => this.setState({isRTL: isRTL});
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return <Component isRTL={this.state.isRTL} setRTL={setRTL} />;
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}
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};
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}
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const RTLToggler = ({isRTL, setRTL}) => {
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if (Platform.OS === 'android') {
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return <Text style={styles.rtlToggler}>{isRTL ? 'RTL' : 'LTR'}</Text>;
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}
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const toggleRTL = () => setRTL(!isRTL);
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return (
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<Button
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onPress={toggleRTL}
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title={isRTL ? 'RTL' : 'LTR'}
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color="gray"
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accessibilityLabel="Change layout direction"
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/>
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);
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};
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const PaddingExample = withRTLState(({isRTL, setRTL}) => {
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const color = 'teal';
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return (
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<RNTesterBlock title={'Padding Start/End'}>
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<Text style={styles.bold}>Styles</Text>
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<Text>paddingStart: 50,</Text>
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<Text>paddingEnd: 10</Text>
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<Text />
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<Text style={styles.bold}>Demo: </Text>
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<Text>The {color} is padding.</Text>
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<View
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style={{
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backgroundColor: color,
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paddingStart: 50,
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paddingEnd: 10,
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borderWidth: 1,
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borderColor: color,
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direction: isRTL ? 'rtl' : 'ltr',
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}}>
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<View
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style={{
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backgroundColor: 'white',
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paddingTop: 5,
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paddingBottom: 5,
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borderLeftWidth: 1,
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borderRightWidth: 1,
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borderColor: 'gray',
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}}>
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<RTLToggler setRTL={setRTL} isRTL={isRTL} />
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</View>
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</View>
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</RNTesterBlock>
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);
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});
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const MarginExample = withRTLState(({isRTL, setRTL}) => {
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return (
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<RNTesterBlock title={'Margin Start/End'}>
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<Text style={styles.bold}>Styles</Text>
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<Text>marginStart: 50,</Text>
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<Text>marginEnd: 10</Text>
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<Text />
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<Text style={styles.bold}>Demo: </Text>
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<Text>The green is margin.</Text>
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<View
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style={{
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backgroundColor: 'green',
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borderWidth: 1,
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borderColor: 'green',
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direction: isRTL ? 'rtl' : 'ltr',
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}}>
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<View
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style={{
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backgroundColor: 'white',
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paddingTop: 5,
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paddingBottom: 5,
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marginStart: 50,
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marginEnd: 10,
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borderLeftWidth: 1,
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borderRightWidth: 1,
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borderColor: 'gray',
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}}>
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<RTLToggler setRTL={setRTL} isRTL={isRTL} />
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</View>
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</View>
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</RNTesterBlock>
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);
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});
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const PositionExample = withRTLState(({isRTL, setRTL}) => {
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return (
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<RNTesterBlock title={'Position Start/End'}>
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<Text style={styles.bold}>Styles</Text>
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<Text>start: 50</Text>
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<Text />
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<Text style={styles.bold}>Demo: </Text>
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<Text>The orange is position.</Text>
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<View
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style={{
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backgroundColor: 'orange',
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borderWidth: 1,
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borderColor: 'orange',
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direction: isRTL ? 'rtl' : 'ltr',
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}}>
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<View
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style={{
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backgroundColor: 'white',
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start: 50,
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borderColor: 'gray',
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}}>
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<RTLToggler setRTL={setRTL} isRTL={isRTL} />
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</View>
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</View>
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<Text />
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<Text style={styles.bold}>Styles</Text>
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<Text>end: 50</Text>
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<Text />
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<Text style={styles.bold}>Demo: </Text>
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<Text>The orange is position.</Text>
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<View
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style={{
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backgroundColor: 'orange',
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borderWidth: 1,
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borderColor: 'orange',
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direction: isRTL ? 'rtl' : 'ltr',
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}}>
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<View
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style={{
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backgroundColor: 'white',
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end: 50,
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borderColor: 'gray',
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}}>
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<RTLToggler setRTL={setRTL} isRTL={isRTL} />
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</View>
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</View>
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</RNTesterBlock>
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);
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});
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const BorderWidthExample = withRTLState(({isRTL, setRTL}) => {
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return (
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<RNTesterBlock title={'Border Width Start/End'}>
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<Text style={styles.bold}>Styles</Text>
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<Text>borderStartWidth: 10,</Text>
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<Text>borderEndWidth: 50</Text>
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<Text />
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<Text style={styles.bold}>Demo: </Text>
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<View style={{direction: isRTL ? 'rtl' : 'ltr'}}>
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<View
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style={{
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borderStartWidth: 10,
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borderEndWidth: 50,
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}}>
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<View>
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<RTLToggler setRTL={setRTL} isRTL={isRTL} />
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</View>
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</View>
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</View>
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</RNTesterBlock>
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);
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});
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const BorderColorExample = withRTLState(({isRTL, setRTL}) => {
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return (
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<RNTesterBlock title={'Border Color Start/End'}>
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<Text style={styles.bold}>Styles</Text>
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<Text>borderStartColor: 'red',</Text>
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<Text>borderEndColor: 'green',</Text>
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<Text />
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<Text style={styles.bold}>Demo: </Text>
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<View style={{direction: isRTL ? 'rtl' : 'ltr'}}>
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<View
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style={{
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borderStartColor: 'red',
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borderEndColor: 'green',
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borderLeftWidth: 20,
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borderRightWidth: 20,
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padding: 10,
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}}>
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<View>
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<RTLToggler setRTL={setRTL} isRTL={isRTL} />
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</View>
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</View>
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</View>
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</RNTesterBlock>
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);
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});
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const BorderRadiiExample = withRTLState(({isRTL, setRTL}) => {
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return (
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<RNTesterBlock title={'Border Radii Start/End'}>
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<Text style={styles.bold}>Styles</Text>
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<Text>borderTopStartRadius: 10,</Text>
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<Text>borderTopEndRadius: 20,</Text>
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<Text>borderBottomStartRadius: 30,</Text>
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<Text>borderBottomEndRadius: 40</Text>
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<Text />
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<Text style={styles.bold}>Demo: </Text>
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<View style={{direction: isRTL ? 'rtl' : 'ltr'}}>
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<View
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style={{
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borderWidth: 10,
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borderTopStartRadius: 10,
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borderTopEndRadius: 20,
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borderBottomStartRadius: 30,
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borderBottomEndRadius: 40,
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padding: 10,
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}}>
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<View>
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<RTLToggler setRTL={setRTL} isRTL={isRTL} />
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</View>
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</View>
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</View>
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</RNTesterBlock>
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);
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});
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const BorderExample = withRTLState(({isRTL, setRTL}) => {
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return (
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<RNTesterBlock title={'Border '}>
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<Text style={styles.bold}>Styles</Text>
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<Text>borderStartColor: 'red',</Text>
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<Text>borderEndColor: 'green',</Text>
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<Text>borderStartWidth: 10,</Text>
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<Text>borderEndWidth: 50,</Text>
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<Text>borderTopStartRadius: 10,</Text>
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<Text>borderTopEndRadius: 20,</Text>
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<Text>borderBottomStartRadius: 30,</Text>
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<Text>borderBottomEndRadius: 40</Text>
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<Text />
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<Text style={styles.bold}>Demo: </Text>
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<View style={{direction: isRTL ? 'rtl' : 'ltr'}}>
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<View
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style={{
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borderStartColor: 'red',
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borderEndColor: 'green',
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borderStartWidth: 10,
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borderEndWidth: 50,
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borderTopStartRadius: 10,
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borderTopEndRadius: 20,
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borderBottomStartRadius: 30,
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borderBottomEndRadius: 40,
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padding: 10,
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}}>
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<View>
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<RTLToggler setRTL={setRTL} isRTL={isRTL} />
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</View>
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</View>
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</View>
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</RNTesterBlock>
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);
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});
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class RTLExample extends React.Component<any, State> {
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static title = 'RTLExample';
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static description = 'Examples to show how to apply components to RTL layout.';
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_panResponder: Object;
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constructor(props: Object) {
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super(props);
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const pan = new Animated.ValueXY();
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this._panResponder = PanResponder.create({
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onStartShouldSetPanResponder: () => true,
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onPanResponderGrant: this._onPanResponderGrant,
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onPanResponderMove: Animated.event([null, {dx: pan.x, dy: pan.y}]),
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onPanResponderRelease: this._onPanResponderEnd,
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onPanResponderTerminate: this._onPanResponderEnd,
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});
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this.state = {
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toggleStatus: {},
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pan,
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linear: new Animated.Value(0),
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isRTL: IS_RTL,
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windowWidth: 0,
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};
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}
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render() {
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return (
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<ScrollView
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style={[
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styles.container,
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// `direction` property is supported only on iOS now.
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Platform.OS === 'ios'
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? {direction: this.state.isRTL ? 'rtl' : 'ltr'}
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: null,
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]}
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onLayout={this._onLayout}>
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<RNTesterPage title={'Right-to-Left (RTL) UI Layout'}>
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<RNTesterBlock title={'Current Layout Direction'}>
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<View style={styles.directionBox}>
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<Text style={styles.directionText}>
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{this.state.isRTL ? 'Right-to-Left' : 'Left-to-Right'}
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</Text>
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</View>
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</RNTesterBlock>
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<RNTesterBlock title={'Quickly Test RTL Layout'}>
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<View style={styles.flexDirectionRow}>
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<Text style={styles.switchRowTextView}>forceRTL</Text>
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<View style={styles.switchRowSwitchView}>
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<Switch
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onValueChange={this._onDirectionChange}
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style={styles.rightAlignStyle}
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value={this.state.isRTL}
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/>
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</View>
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</View>
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</RNTesterBlock>
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<RNTesterBlock title={'A Simple List Item Layout'}>
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<View style={styles.list}>
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<ListItem imageSource={require('./Thumbnails/like.png')} />
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<ListItem imageSource={require('./Thumbnails/poke.png')} />
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</View>
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</RNTesterBlock>
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<TextAlignmentExample
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title={'Default Text Alignment'}
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description={
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'In iOS, it depends on active language. ' +
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'In Android, it depends on the text content.'
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}
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style={styles.fontSizeSmall}
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/>
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<TextAlignmentExample
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title={"Using textAlign: 'left'"}
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description={
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'In iOS/Android, text alignment flips regardless of ' +
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'languages or text content.'
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}
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style={[styles.fontSizeSmall, styles.textAlignLeft]}
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/>
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<TextAlignmentExample
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title={"Using textAlign: 'right'"}
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description={
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'In iOS/Android, text alignment flips regardless of ' +
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'languages or text content.'
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}
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style={[styles.fontSizeSmall, styles.textAlignRight]}
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/>
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<RNTesterBlock title={'Working With Icons'}>
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<View style={styles.flexDirectionRow}>
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<View>
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<Image
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source={require('./Thumbnails/like.png')}
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style={styles.image}
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/>
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<Text style={styles.fontSizeExtraSmall}>
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Without directional meaning
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</Text>
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</View>
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<View style={styles.rightAlignStyle}>
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<Image
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source={require('./Thumbnails/poke.png')}
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style={[styles.image, styles.withRTLStyle]}
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/>
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<Text style={styles.fontSizeExtraSmall}>
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With directional meaning
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</Text>
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</View>
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</View>
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</RNTesterBlock>
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<RNTesterBlock
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title={'Controlling Animation'}
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description={'Animation direction according to layout'}>
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<View Style={styles.view}>
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<AnimationBlock
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onPress={this._linearTap}
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imgStyle={{
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transform: [
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{translateX: this.state.linear},
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{scaleX: IS_RTL ? -1 : 1},
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],
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}}
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/>
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</View>
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</RNTesterBlock>
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<PaddingExample />
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<MarginExample />
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<PositionExample />
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<BorderWidthExample />
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<BorderColorExample />
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<BorderRadiiExample />
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<BorderExample />
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</RNTesterPage>
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</ScrollView>
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);
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}
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_onLayout = (e: Object) => {
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this.setState({
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windowWidth: e.nativeEvent.layout.width,
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});
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};
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_onDirectionChange = () => {
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I18nManager.forceRTL(!this.state.isRTL);
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this.setState({isRTL: !this.state.isRTL});
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Alert.alert(
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'Reload this page',
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'Please reload this page to change the UI direction! ' +
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'All examples in this app will be affected. ' +
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'Check them out to see what they look like in RTL layout.',
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);
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};
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_linearTap = (refName: string, e: Object) => {
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this.setState({
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toggleStatus: {
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...this.state.toggleStatus,
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[refName]: !this.state.toggleStatus[refName],
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},
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});
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const offset = IMAGE_SIZE[0] / SCALE / 2 + 10;
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const toMaxDistance =
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(IS_RTL ? -1 : 1) * (this.state.windowWidth / 2 - offset);
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Animated.timing(this.state.linear, {
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toValue: this.state.toggleStatus[refName] ? toMaxDistance : 0,
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duration: 2000,
|
|
useNativeDriver: true,
|
|
}).start();
|
|
};
|
|
|
|
_onPanResponderGrant = (e: Object, gestureState: Object) => {
|
|
this.state.pan.stopAnimation(value => {
|
|
this.state.pan.setOffset(value);
|
|
});
|
|
};
|
|
|
|
_onPanResponderEnd = (e: Object, gestureState: Object) => {
|
|
this.state.pan.flattenOffset();
|
|
Animated.sequence([
|
|
Animated.decay(this.state.pan, {
|
|
velocity: {x: gestureState.vx, y: gestureState.vy},
|
|
deceleration: 0.995,
|
|
}),
|
|
Animated.spring(this.state.pan, {toValue: {x: 0, y: 0}}),
|
|
]).start();
|
|
};
|
|
}
|
|
|
|
const styles = StyleSheet.create({
|
|
container: {
|
|
backgroundColor: '#e9eaed',
|
|
paddingTop: 15,
|
|
},
|
|
directionBox: {
|
|
flex: 1,
|
|
backgroundColor: '#f8f8f8',
|
|
borderWidth: 0.5,
|
|
borderColor: 'black',
|
|
},
|
|
directionText: {
|
|
padding: 10,
|
|
fontSize: 16,
|
|
textAlign: 'center',
|
|
fontWeight: 'bold',
|
|
},
|
|
switchRowTextView: {
|
|
flex: 1,
|
|
marginBottom: 5,
|
|
marginTop: 5,
|
|
textAlign: 'center',
|
|
},
|
|
switchRowSwitchView: {
|
|
flex: 3,
|
|
},
|
|
rightAlignStyle: {
|
|
right: 10,
|
|
position: 'absolute',
|
|
},
|
|
list: {
|
|
height: 120,
|
|
marginBottom: 5,
|
|
borderTopWidth: 0.5,
|
|
borderLeftWidth: 0.5,
|
|
borderRightWidth: 0.5,
|
|
borderColor: '#e5e5e5',
|
|
},
|
|
row: {
|
|
height: 60,
|
|
flexDirection: 'row',
|
|
borderBottomWidth: 0.5,
|
|
borderColor: '#e5e5e5',
|
|
},
|
|
column1: {
|
|
width: 60,
|
|
},
|
|
column2: {
|
|
flex: 2.5,
|
|
padding: 6,
|
|
},
|
|
column3: {
|
|
flex: 1.5,
|
|
},
|
|
icon: {
|
|
width: 48,
|
|
height: 48,
|
|
margin: 6,
|
|
borderWidth: 0.5,
|
|
borderColor: '#e5e5e5',
|
|
},
|
|
withRTLStyle: {
|
|
transform: [{scaleX: IS_RTL ? -1 : 1}],
|
|
},
|
|
image: {
|
|
left: 30,
|
|
width: 48,
|
|
height: 48,
|
|
},
|
|
img: {
|
|
width: IMAGE_SIZE[0] / SCALE,
|
|
height: IMAGE_SIZE[1] / SCALE,
|
|
},
|
|
view: {
|
|
flex: 1,
|
|
},
|
|
block: {
|
|
padding: 10,
|
|
alignItems: 'center',
|
|
},
|
|
smallButton: {
|
|
top: 18,
|
|
borderRadius: 5,
|
|
height: 24,
|
|
width: 64,
|
|
backgroundColor: '#e5e5e5',
|
|
justifyContent: 'center',
|
|
alignItems: 'center',
|
|
},
|
|
fontSizeSmall: {
|
|
fontSize: 10,
|
|
},
|
|
fontSizeExtraSmall: {
|
|
fontSize: 8,
|
|
},
|
|
textAlignLeft: {
|
|
textAlign: 'left',
|
|
},
|
|
textAlignRight: {
|
|
textAlign: 'right',
|
|
},
|
|
textBox: {
|
|
width: 28,
|
|
},
|
|
flexDirectionRow: {
|
|
flexDirection: 'row',
|
|
},
|
|
bold: {
|
|
fontWeight: 'bold',
|
|
},
|
|
rtlToggler: {
|
|
color: 'gray',
|
|
padding: 8,
|
|
textAlign: 'center',
|
|
fontWeight: '500',
|
|
},
|
|
});
|
|
|
|
module.exports = RTLExample;
|