From bc5083ac40b269169522fa4e4acca17e26c17213 Mon Sep 17 00:00:00 2001
From: Ramanpreet Nara <ramanpreet@fb.com>
Date: Wed, 18 Oct 2017 19:30:02 -0700
Subject: [PATCH] Add examples to RTLExample

Reviewed By: sahrens

Differential Revision: D5929933

fbshipit-source-id: 16ef86c4ab444f740b2568ddb3af0ffd5ff0d02b
---
 RNTester/js/RTLExample.js | 410 +++++++++++++++++++++++++++++++-------
 1 file changed, 342 insertions(+), 68 deletions(-)

diff --git a/RNTester/js/RTLExample.js b/RNTester/js/RTLExample.js
index cde83d090..c7cf4930b 100644
--- a/RNTester/js/RTLExample.js
+++ b/RNTester/js/RTLExample.js
@@ -7,6 +7,7 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @flow
+ * @format
  * @providesModule RTLExample
  */
 'use strict';
@@ -26,10 +27,10 @@ const {
   TouchableWithoutFeedback,
   Switch,
   View,
+  Button,
 } = ReactNative;
 const Platform = require('Platform');
 
-
 const RNTesterPage = require('./RNTesterPage');
 const RNTesterBlock = require('./RNTesterBlock');
 
@@ -48,57 +49,46 @@ const IMAGE_SIZE = [IMAGE_DIMENSION, IMAGE_DIMENSION];
 const IS_RTL = I18nManager.isRTL;
 
 function ListItem(props) {
- return (
+  return (
     <View style={styles.row}>
-     <View style={styles.column1}>
-       <Image
-         source={props.imageSource}
-         style={styles.icon}
-       />
-     </View>
-     <View style={styles.column2}>
-       <View style={styles.textBox}>
-         <Text>
-           Text
-           Text
-           Text
-         </Text>
-       </View>
-     </View>
-     <View style={styles.column3}>
-       <View style={styles.smallButton}>
-         <Text style={styles.fontSizeSmall}>
-           Button
-         </Text>
-       </View>
-     </View>
-   </View>
- );
+      <View style={styles.column1}>
+        <Image source={props.imageSource} style={styles.icon} />
+      </View>
+      <View style={styles.column2}>
+        <View style={styles.textBox}>
+          <Text>Text Text Text</Text>
+        </View>
+      </View>
+      <View style={styles.column3}>
+        <View style={styles.smallButton}>
+          <Text style={styles.fontSizeSmall}>Button</Text>
+        </View>
+      </View>
+    </View>
+  );
 }
 
 function TextAlignmentExample(props) {
   return (
-    <RNTesterBlock
-     title={props.title}
-     description={props.description}>
-     <View>
-       <Text style={props.style}>
-         Left-to-Right language without text alignment.
-       </Text>
-       <Text style={props.style}>
-        {'\u0645\u0646 \u0627\u0644\u064A\u0645\u064A\u0646 ' +
-          '\u0625\u0644\u0649 \u0627\u0644\u064A\u0633\u0627\u0631 ' +
-          '\u0627\u0644\u0644\u063A\u0629 \u062F\u0648\u0646 ' +
-          '\u0645\u062D\u0627\u0630\u0627\u0629 \u0627\u0644\u0646\u0635'}
-       </Text>
-       <Text style={props.style}>
-        {'\u05DE\u05D9\u05DE\u05D9\u05DF \u05DC\u05E9\u05DE\u05D0\u05DC ' +
-          '\u05D4\u05E9\u05E4\u05D4 \u05D1\u05DC\u05D9 ' +
-          '\u05D9\u05D9\u05E9\u05D5\u05E8 \u05D8\u05E7\u05E1\u05D8'}
-       </Text>
-     </View>
-   </RNTesterBlock>
- );
+    <RNTesterBlock title={props.title} description={props.description}>
+      <View>
+        <Text style={props.style}>
+          Left-to-Right language without text alignment.
+        </Text>
+        <Text style={props.style}>
+          {'\u0645\u0646 \u0627\u0644\u064A\u0645\u064A\u0646 ' +
+            '\u0625\u0644\u0649 \u0627\u0644\u064A\u0633\u0627\u0631 ' +
+            '\u0627\u0644\u0644\u063A\u0629 \u062F\u0648\u0646 ' +
+            '\u0645\u062D\u0627\u0630\u0627\u0629 \u0627\u0644\u0646\u0635'}
+        </Text>
+        <Text style={props.style}>
+          {'\u05DE\u05D9\u05DE\u05D9\u05DF \u05DC\u05E9\u05DE\u05D0\u05DC ' +
+            '\u05D4\u05E9\u05E4\u05D4 \u05D1\u05DC\u05D9 ' +
+            '\u05D9\u05D9\u05E9\u05D5\u05E8 \u05D8\u05E7\u05E1\u05D8'}
+        </Text>
+      </View>
+    </RNTesterBlock>
+  );
 }
 
 function AnimationBlock(props) {
@@ -114,6 +104,276 @@ function AnimationBlock(props) {
   );
 }
 
+type RTLSwitcherComponentState = {|
+  isRTL: boolean,
+|};
+
+function withRTLState(Component) {
+  return class extends React.Component<*, RTLSwitcherComponentState> {
+    constructor(...args) {
+      super(...args);
+      this.state = {
+        isRTL: IS_RTL,
+      };
+    }
+
+    render() {
+      const setRTL = isRTL => this.setState({isRTL: isRTL});
+      return <Component isRTL={this.state.isRTL} setRTL={setRTL} />;
+    }
+  };
+}
+
+const RTLToggler = ({isRTL, setRTL}) => {
+  if (Platform.OS === 'android') {
+    return <Text style={styles.rtlToggler}>{isRTL ? 'RTL' : 'LTR'}</Text>;
+  }
+
+  const toggleRTL = () => setRTL(!isRTL);
+  return (
+    <Button
+      onPress={toggleRTL}
+      title={isRTL ? 'RTL' : 'LTR'}
+      color="gray"
+      accessibilityLabel="Change layout direction"
+    />
+  );
+};
+
+const PaddingExample = withRTLState(({isRTL, setRTL}) => {
+  const color = 'teal';
+
+  return (
+    <RNTesterBlock title={'Padding Start/End'}>
+      <Text style={styles.bold}>Styles</Text>
+      <Text>paddingStart: 50,</Text>
+      <Text>paddingEnd: 10</Text>
+      <Text />
+      <Text style={styles.bold}>Demo: </Text>
+      <Text>The {color} is padding.</Text>
+      <View
+        style={{
+          backgroundColor: color,
+          paddingStart: 50,
+          paddingEnd: 10,
+          borderWidth: 1,
+          borderColor: color,
+          direction: isRTL ? 'rtl' : 'ltr',
+        }}>
+        <View
+          style={{
+            backgroundColor: 'white',
+            paddingTop: 5,
+            paddingBottom: 5,
+            borderLeftWidth: 1,
+            borderRightWidth: 1,
+            borderColor: 'gray',
+          }}>
+          <RTLToggler setRTL={setRTL} isRTL={isRTL} />
+        </View>
+      </View>
+    </RNTesterBlock>
+  );
+});
+
+const MarginExample = withRTLState(({isRTL, setRTL}) => {
+  return (
+    <RNTesterBlock title={'Margin Start/End'}>
+      <Text style={styles.bold}>Styles</Text>
+      <Text>marginStart: 50,</Text>
+      <Text>marginEnd: 10</Text>
+      <Text />
+      <Text style={styles.bold}>Demo: </Text>
+      <Text>The green is margin.</Text>
+      <View
+        style={{
+          backgroundColor: 'green',
+          borderWidth: 1,
+          borderColor: 'green',
+          direction: isRTL ? 'rtl' : 'ltr',
+        }}>
+        <View
+          style={{
+            backgroundColor: 'white',
+            paddingTop: 5,
+            paddingBottom: 5,
+            marginStart: 50,
+            marginEnd: 10,
+            borderLeftWidth: 1,
+            borderRightWidth: 1,
+            borderColor: 'gray',
+          }}>
+          <RTLToggler setRTL={setRTL} isRTL={isRTL} />
+        </View>
+      </View>
+    </RNTesterBlock>
+  );
+});
+
+const PositionExample = withRTLState(({isRTL, setRTL}) => {
+  return (
+    <RNTesterBlock title={'Position Start/End'}>
+      <Text style={styles.bold}>Styles</Text>
+      <Text>start: 50</Text>
+      <Text />
+      <Text style={styles.bold}>Demo: </Text>
+      <Text>The orange is position.</Text>
+      <View
+        style={{
+          backgroundColor: 'orange',
+          borderWidth: 1,
+          borderColor: 'orange',
+          direction: isRTL ? 'rtl' : 'ltr',
+        }}>
+        <View
+          style={{
+            backgroundColor: 'white',
+            start: 50,
+            borderColor: 'gray',
+          }}>
+          <RTLToggler setRTL={setRTL} isRTL={isRTL} />
+        </View>
+      </View>
+      <Text />
+      <Text style={styles.bold}>Styles</Text>
+      <Text>end: 50</Text>
+      <Text />
+      <Text style={styles.bold}>Demo: </Text>
+      <Text>The orange is position.</Text>
+      <View
+        style={{
+          backgroundColor: 'orange',
+          borderWidth: 1,
+          borderColor: 'orange',
+          direction: isRTL ? 'rtl' : 'ltr',
+        }}>
+        <View
+          style={{
+            backgroundColor: 'white',
+            end: 50,
+            borderColor: 'gray',
+          }}>
+          <RTLToggler setRTL={setRTL} isRTL={isRTL} />
+        </View>
+      </View>
+    </RNTesterBlock>
+  );
+});
+
+const BorderWidthExample = withRTLState(({isRTL, setRTL}) => {
+  return (
+    <RNTesterBlock title={'Border Width Start/End'}>
+      <Text style={styles.bold}>Styles</Text>
+      <Text>borderStartWidth: 10,</Text>
+      <Text>borderEndWidth: 50</Text>
+      <Text />
+      <Text style={styles.bold}>Demo: </Text>
+      <View style={{direction: isRTL ? 'rtl' : 'ltr'}}>
+        <View
+          style={{
+            borderStartWidth: 10,
+            borderEndWidth: 50,
+          }}>
+          <View>
+            <RTLToggler setRTL={setRTL} isRTL={isRTL} />
+          </View>
+        </View>
+      </View>
+    </RNTesterBlock>
+  );
+});
+
+const BorderColorExample = withRTLState(({isRTL, setRTL}) => {
+  return (
+    <RNTesterBlock title={'Border Color Start/End'}>
+      <Text style={styles.bold}>Styles</Text>
+      <Text>borderStartColor: 'red',</Text>
+      <Text>borderEndColor: 'green',</Text>
+      <Text />
+      <Text style={styles.bold}>Demo: </Text>
+      <View style={{direction: isRTL ? 'rtl' : 'ltr'}}>
+        <View
+          style={{
+            borderStartColor: 'red',
+            borderEndColor: 'green',
+            borderLeftWidth: 20,
+            borderRightWidth: 20,
+            padding: 10,
+          }}>
+          <View>
+            <RTLToggler setRTL={setRTL} isRTL={isRTL} />
+          </View>
+        </View>
+      </View>
+    </RNTesterBlock>
+  );
+});
+
+const BorderRadiiExample = withRTLState(({isRTL, setRTL}) => {
+  return (
+    <RNTesterBlock title={'Border Radii Start/End'}>
+      <Text style={styles.bold}>Styles</Text>
+      <Text>borderTopStartRadius: 10,</Text>
+      <Text>borderTopEndRadius: 20,</Text>
+      <Text>borderBottomStartRadius: 30,</Text>
+      <Text>borderBottomEndRadius: 40</Text>
+      <Text />
+      <Text style={styles.bold}>Demo: </Text>
+      <View style={{direction: isRTL ? 'rtl' : 'ltr'}}>
+        <View
+          style={{
+            borderWidth: 10,
+            borderTopStartRadius: 10,
+            borderTopEndRadius: 20,
+            borderBottomStartRadius: 30,
+            borderBottomEndRadius: 40,
+            padding: 10,
+          }}>
+          <View>
+            <RTLToggler setRTL={setRTL} isRTL={isRTL} />
+          </View>
+        </View>
+      </View>
+    </RNTesterBlock>
+  );
+});
+
+const BorderExample = withRTLState(({isRTL, setRTL}) => {
+  return (
+    <RNTesterBlock title={'Border '}>
+      <Text style={styles.bold}>Styles</Text>
+      <Text>borderStartColor: 'red',</Text>
+      <Text>borderEndColor: 'green',</Text>
+      <Text>borderStartWidth: 10,</Text>
+      <Text>borderEndWidth: 50,</Text>
+      <Text>borderTopStartRadius: 10,</Text>
+      <Text>borderTopEndRadius: 20,</Text>
+      <Text>borderBottomStartRadius: 30,</Text>
+      <Text>borderBottomEndRadius: 40</Text>
+      <Text />
+      <Text style={styles.bold}>Demo: </Text>
+      <View style={{direction: isRTL ? 'rtl' : 'ltr'}}>
+        <View
+          style={{
+            borderStartColor: 'red',
+            borderEndColor: 'green',
+            borderStartWidth: 10,
+            borderEndWidth: 50,
+            borderTopStartRadius: 10,
+            borderTopEndRadius: 20,
+            borderBottomStartRadius: 30,
+            borderBottomEndRadius: 40,
+            padding: 10,
+          }}>
+          <View>
+            <RTLToggler setRTL={setRTL} isRTL={isRTL} />
+          </View>
+        </View>
+      </View>
+    </RNTesterBlock>
+  );
+});
+
 class RTLExample extends React.Component<any, State> {
   static title = 'RTLExample';
   static description = 'Examples to show how to apply components to RTL layout.';
@@ -127,9 +387,7 @@ class RTLExample extends React.Component<any, State> {
     this._panResponder = PanResponder.create({
       onStartShouldSetPanResponder: () => true,
       onPanResponderGrant: this._onPanResponderGrant,
-      onPanResponderMove: Animated.event([
-        null, {dx: pan.x, dy: pan.y},
-      ]),
+      onPanResponderMove: Animated.event([null, {dx: pan.x, dy: pan.y}]),
       onPanResponderRelease: this._onPanResponderEnd,
       onPanResponderTerminate: this._onPanResponderEnd,
     });
@@ -149,9 +407,9 @@ class RTLExample extends React.Component<any, State> {
         style={[
           styles.container,
           // `direction` property is supported only on iOS now.
-          Platform.OS === 'ios' ?
-            {direction: this.state.isRTL ? 'rtl' : 'ltr'} :
-            null
+          Platform.OS === 'ios'
+            ? {direction: this.state.isRTL ? 'rtl' : 'ltr'}
+            : null,
         ]}
         onLayout={this._onLayout}>
         <RNTesterPage title={'Right-to-Left (RTL) UI Layout'}>
@@ -164,21 +422,20 @@ class RTLExample extends React.Component<any, State> {
           </RNTesterBlock>
           <RNTesterBlock title={'Quickly Test RTL Layout'}>
             <View style={styles.flexDirectionRow}>
-              <Text style={styles.switchRowTextView}>
-                forceRTL
-              </Text>
+              <Text style={styles.switchRowTextView}>forceRTL</Text>
               <View style={styles.switchRowSwitchView}>
                 <Switch
                   onValueChange={this._onDirectionChange}
                   style={styles.rightAlignStyle}
-                  value={this.state.isRTL} />
+                  value={this.state.isRTL}
+                />
               </View>
             </View>
           </RNTesterBlock>
           <RNTesterBlock title={'A Simple List Item Layout'}>
             <View style={styles.list}>
-              <ListItem imageSource={require('./Thumbnails/like.png')}/>
-              <ListItem imageSource={require('./Thumbnails/poke.png')}/>
+              <ListItem imageSource={require('./Thumbnails/like.png')} />
+              <ListItem imageSource={require('./Thumbnails/poke.png')} />
             </View>
           </RNTesterBlock>
           <TextAlignmentExample
@@ -236,12 +493,19 @@ class RTLExample extends React.Component<any, State> {
                 imgStyle={{
                   transform: [
                     {translateX: this.state.linear},
-                    {scaleX: IS_RTL ? -1 : 1}
-                  ]
+                    {scaleX: IS_RTL ? -1 : 1},
+                  ],
                 }}
               />
             </View>
           </RNTesterBlock>
+          <PaddingExample />
+          <MarginExample />
+          <PositionExample />
+          <BorderWidthExample />
+          <BorderColorExample />
+          <BorderRadiiExample />
+          <BorderExample />
         </RNTesterPage>
       </ScrollView>
     );
@@ -256,10 +520,11 @@ class RTLExample extends React.Component<any, State> {
   _onDirectionChange = () => {
     I18nManager.forceRTL(!this.state.isRTL);
     this.setState({isRTL: !this.state.isRTL});
-    Alert.alert('Reload this page',
-     'Please reload this page to change the UI direction! ' +
-     'All examples in this app will be affected. ' +
-     'Check them out to see what they look like in RTL layout.'
+    Alert.alert(
+      'Reload this page',
+      'Please reload this page to change the UI direction! ' +
+        'All examples in this app will be affected. ' +
+        'Check them out to see what they look like in RTL layout.',
     );
   };
 
@@ -272,7 +537,7 @@ class RTLExample extends React.Component<any, State> {
     });
     const offset = IMAGE_SIZE[0] / SCALE / 2 + 10;
     const toMaxDistance =
-     (IS_RTL ? -1 : 1) * (this.state.windowWidth / 2 - offset);
+      (IS_RTL ? -1 : 1) * (this.state.windowWidth / 2 - offset);
     Animated.timing(this.state.linear, {
       toValue: this.state.toggleStatus[refName] ? toMaxDistance : 0,
       duration: 2000,
@@ -387,10 +652,10 @@ const styles = StyleSheet.create({
     justifyContent: 'center',
     alignItems: 'center',
   },
-  fontSizeSmall:{
+  fontSizeSmall: {
     fontSize: 10,
   },
-  fontSizeExtraSmall:{
+  fontSizeExtraSmall: {
     fontSize: 8,
   },
   textAlignLeft: {
@@ -405,6 +670,15 @@ const styles = StyleSheet.create({
   flexDirectionRow: {
     flexDirection: 'row',
   },
+  bold: {
+    fontWeight: 'bold',
+  },
+  rtlToggler: {
+    color: 'gray',
+    padding: 8,
+    textAlign: 'center',
+    fontWeight: '500',
+  },
 });
 
 module.exports = RTLExample;