Add 'Tweet' to performance benchmarks

performance/components/AppText/index.js

@@ -0,0 +1,115 @@
+import theme from '../theme';
+import React, { PropTypes, PureComponent } from 'react';
+import { StyleSheet, Text } from 'react-native';
+
+class AppText extends PureComponent {
+  static displayName = 'AppText';
+
+  static propTypes = {
+    align: PropTypes.oneOf(['center', 'left', 'right']),
+    color: PropTypes.oneOf(['blue', 'deepGray', 'normal', 'red', 'white']),
+    fontStyle: PropTypes.oneOf(['normal', 'italic']),
+    size: PropTypes.oneOf(['small', 'normal', 'large']),
+    uppercase: PropTypes.bool,
+    weight: PropTypes.oneOf(['normal', 'bold'])
+  };
+
+  render() {
+    const {
+      align,
+      color,
+      fontStyle,
+      size,
+      uppercase,
+      weight,
+      ...other
+    } = this.props;
+
+    const style = [
+      styles.root,
+      align && alignStyles[align],
+      color && colorStyles[color],
+      fontStyle && fontStyles[fontStyle],
+      size && sizeStyles[size],
+      weight && weightStyles[weight],
+      uppercase === true && styles.uppercase
+    ];
+
+    return <Text {...other} style={style} />;
+  }
+}
+
+const styles = StyleSheet.create({
+  root: {
+    fontFamily: theme.fontFamily,
+    fontSize: theme.fontSize.normal,
+    fontWeight: 'normal',
+    lineHeight: theme.createLength(theme.lineHeight),
+    wordWrap: 'break-word'
+  },
+  uppercase: {
+    textTransform: 'uppercase'
+  }
+});
+
+const alignStyles = StyleSheet.create({
+  center: {
+    textAlign: 'center'
+  },
+  left: {
+    textAlign: 'left'
+  },
+  right: {
+    textAlign: 'right'
+  }
+});
+
+const colorStyles = StyleSheet.create({
+  blue: {
+    color: theme.colors.blue
+  },
+  deepGray: {
+    color: theme.colors.deepGray
+  },
+  normal: {
+    color: theme.colors.textBlack
+  },
+  red: {
+    color: theme.colors.red
+  },
+  white: {
+    color: theme.colors.white
+  }
+});
+
+const fontStyles = StyleSheet.create({
+  normal: {
+    fontStyle: 'normal'
+  },
+  italic: {
+    fontStyle: 'italic'
+  }
+});
+
+const sizeStyles = StyleSheet.create({
+  small: {
+    fontSize: theme.fontSize.small
+  },
+  normal: {
+    fontSize: theme.fontSize.normal
+  },
+  large: {
+    fontSize: theme.fontSize.large
+  }
+});
+
+const weightStyles = StyleSheet.create({
+  normal: {
+    fontWeight: '400'
+  },
+  bold: {
+    fontWeight: 'bold'
+  }
+});
+
+export default AppText;

performance/components/AspectRatio/index.js

@@ -0,0 +1,40 @@
+import React, { PureComponent, PropTypes } from 'react';
+import { StyleSheet, View } from 'react-native';
+
+class AspectRatio extends PureComponent {
+  static displayName = 'AspectRatio';
+
+  static propTypes = {
+    children: PropTypes.any,
+    ratio: PropTypes.number,
+    style: PropTypes.object
+  };
+
+  static defaultProps = {
+    ratio: 1
+  };
+
+  render() {
+    const { children, ratio, style } = this.props;
+    const percentage = 100 / ratio;
+
+    return (
+      <View style={[styles.root, style]}>
+        <View style={[styles.shim, { paddingBottom: `${percentage}%` }]} />
+        <View style={StyleSheet.absoluteFill}>{children}</View>
+      </View>
+    );
+  }
+}
+
+const styles = StyleSheet.create({
+  root: {
+    overflow: 'hidden'
+  },
+  shim: {
+    display: 'block',
+    width: '100%'
+  }
+});
+
+export default AspectRatio;

performance/components/Box/index.css-modules.js

@@ -1,7 +1,7 @@
 /* eslint-disable react/prop-types */
 import classnames from 'classnames';
 import React from 'react';
-import View from '../View';
+import View from '../View/index.css-modules';
 import styles from './styles.css';
 
 const Box = ({ color, fixed = false, layout = 'column', outer = false, ...other }) => (

performance/components/Box/index.glamor.js

@@ -1,7 +1,7 @@
 /* eslint-disable react/prop-types */
 import { css } from 'glamor';
 import React from 'react';
-import View from '../View';
+import View from '../View/index.glamor';
 
 const Box = ({ color, fixed = false, layout = 'column', outer = false, ...other }) => (
   <View

performance/components/Box/index.js

@@ -1,7 +1,6 @@
 /* eslint-disable react/prop-types */
 import React from 'react';
-import StyleSheet from 'react-native/apis/StyleSheet';
-import View from '../View';
+import { StyleSheet, View } from 'react-native';
 
 const Box = ({ color, fixed = false, layout = 'column', outer = false, ...other }) => (
   <View

performance/components/Box/index.platform.js

@@ -1,7 +1,7 @@
 /* eslint-disable react/prop-types */
 import classnames from 'classnames';
 import React from 'react';
-import View from '../View';
+import View from '../View/index.platform';
 
 const Box = ({ color, fixed = false, layout = 'column', outer = false, ...other }) => (
   <View

performance/components/Box/index.styled.js

@@ -1,5 +1,5 @@
 import styled from 'styled-components';
-import View from '../View';
+import View from '../View/index.styled';
 
 const getColor = color => {
   switch (color) {

performance/components/GridView/index.js

@@ -0,0 +1,50 @@
+import { StyleSheet, View } from 'react-native';
+import React, { Component, PropTypes } from 'react';
+import theme from '../theme';
+
+class GridView extends Component {
+  static displayName = 'GridView';
+
+  static propTypes = {
+    children: PropTypes.node,
+    hasGap: PropTypes.bool,
+    style: PropTypes.object
+  };
+
+  render() {
+    const { children, hasGap, style, ...other } = this.props;
+
+    return (
+      <View {...other} style={[style, styles.root, hasGap && styles.hasGap]}>
+        {React.Children.map(children, child => {
+          return child &&
+            React.cloneElement(child, {
+              style: [child.props.style, styles.column, hasGap && styles.hasGapColumn]
+            });
+        })}
+      </View>
+    );
+  }
+}
+
+const styles = StyleSheet.create({
+  root: {
+    flexDirection: 'row'
+  },
+  /**
+   * 1. Distribute all space (rather than extra space)
+   * 2. Prevent wide content from forcing wider flex columns
+   */
+  column: {
+    flexBasis: 0, // 1
+    minWidth: 0 // 2
+  },
+  hasGap: {
+    marginHorizontal: theme.createLength(theme.spaceX * (-0.5), 'rem')
+  },
+  hasGapColumn: {
+    marginHorizontal: theme.createLength(theme.spaceX * 0.5, 'rem')
+  }
+});
+
+export default GridView;

performance/components/Icons/DirectMessage.js

@@ -0,0 +1,20 @@
+import { createDOMElement } from 'react-native';
+import React from 'react';
+import styles from './styles';
+
+const IconDirectMessage = props => createDOMElement('svg', {
+  children: (
+    <g>
+      <path d="M43.34 14H12.66L28 27.946z" />
+      <path
+        d="M51.392 14.789L30.018 34.22c-.009.008-.028.006-.039.012-.563.5-1.266.768-1.98.768-.72 0-1.442-.258-2.017-.78L4.609 14.79A3.957 3.957 0 0 0 3 18v37a1.998 1.998 0 0 0 2 2c.464 0 .924-.162 1.292-.473L19 46h30c2.243 0 4-1.757 4-4V18a3.96 3.96 0 0 0-1.608-3.211z"
+      />
+    </g>
+  ),
+  style: [styles.icon, props.style],
+  viewBox: '0 0 56 72'
+});
+
+IconDirectMessage.metadata = { height: 72, width: 56 };
+
+export default IconDirectMessage;

performance/components/Icons/Heart.js

@@ -0,0 +1,19 @@
+import { createDOMElement } from 'react-native';
+import React from 'react';
+import styles from './styles';
+
+const IconHeart = props => createDOMElement('svg', {
+  children: (
+    <g>
+      <path
+        d="M38.723 12c-7.187 0-11.16 7.306-11.723 8.131C26.437 19.306 22.504 12 15.277 12 8.791 12 3.533 18.163 3.533 24.647 3.533 39.964 21.891 55.907 27 56c5.109-.093 23.467-16.036 23.467-31.353C50.467 18.163 45.209 12 38.723 12z"
+      />
+    </g>
+  ),
+  style: [styles.icon, props.style],
+  viewBox: '0 0 54 72'
+});
+
+IconHeart.metadata = { height: 72, width: 54 };
+
+export default IconHeart;

performance/components/Icons/Reply.js

@@ -0,0 +1,19 @@
+import { createDOMElement } from 'react-native';
+import React from 'react';
+import styles from './styles';
+
+const IconReply = props => createDOMElement('svg', {
+  children: (
+    <g>
+      <path
+        d="M41 31h-9V19a2.999 2.999 0 0 0-4.817-2.386l-21 16a3 3 0 0 0-.001 4.773l21 16a3.006 3.006 0 0 0 3.15.301A2.997 2.997 0 0 0 32 51V39h9c5.514 0 10 4.486 10 10a4 4 0 0 0 8 0c0-9.925-8.075-18-18-18z"
+      />
+    </g>
+  ),
+  style: [styles.icon, props.style],
+  viewBox: '0 0 62 72'
+});
+
+IconReply.metadata = { height: 72, width: 62 };
+
+export default IconReply;

performance/components/Icons/Retweet.js

@@ -0,0 +1,19 @@
+import { createDOMElement } from 'react-native';
+import React from 'react';
+import styles from './styles';
+
+const IconRetweet = props => createDOMElement('svg', {
+  children: (
+    <g>
+      <path
+        d="M70.676 36.644A3 3 0 0 0 68 35h-7V19a4 4 0 0 0-4-4H34a4 4 0 0 0 0 8h18a1 1 0 0 1 1 .998V35h-7a3.001 3.001 0 0 0-2.419 4.775l11 15a3.003 3.003 0 0 0 4.839-.001l11-15a3.001 3.001 0 0 0 .256-3.13zM40.001 48H22a.995.995 0 0 1-.992-.96L21.001 36h7a3.001 3.001 0 0 0 2.419-4.775l-11-15a3.003 3.003 0 0 0-4.839.001l-11 15A3 3 0 0 0 6.001 36h7l.011 16.003a4 4 0 0 0 4 3.997h22.989a4 4 0 0 0 0-8z"
+      />
+    </g>
+  ),
+  style: [styles.icon, props.style],
+  viewBox: '0 0 74 72'
+});
+
+IconRetweet.metadata = { height: 72, width: 74 };
+
+export default IconRetweet;

performance/components/Icons/styles.js

@@ -0,0 +1,15 @@
+import { StyleSheet } from 'react-native';
+
+const styles = StyleSheet.create({
+  icon: {
+    display: 'inline-block',
+    fill: 'currentcolor',
+    height: '1.25em',
+    maxWidth: '100%',
+    position: 'relative',
+    userSelect: 'none',
+    verticalAlign: 'text-bottom'
+  }
+});
+
+export default styles;

performance/components/Tweet/index.js

@@ -0,0 +1,144 @@
+import AspectRatio from '../AspectRatio';
+import GridView from '../GridView';
+import TweetActionsBar from '../TweetActionsBar';
+import TweetText from '../TweetText';
+import UserAvatar from '../UserAvatar';
+import UserNames from '../UserNames';
+import { Image, StyleSheet, Text, View } from 'react-native';
+import React, { Component, PropTypes } from 'react';
+import theme from '../theme';
+
+export class Tweet extends Component {
+  static displayName = 'Tweet';
+
+  static propTypes = {
+    tweet: PropTypes.object.isRequired
+  };
+
+  render() {
+    const { tweet } = this.props;
+    const { id, lang, media, textParts, timestamp, user } = tweet;
+    const { fullName, profileImageUrl, screenName } = user;
+
+    return (
+      <View accessibilityRole="article" accessible style={styles.root}>
+        <GridView hasGap>
+          <View style={styles.avatarColumn}>
+            <View
+              accessibilityRole="link"
+              accessible
+              href={`/${screenName}`}
+              style={styles.avatarLink}
+            >
+              <UserAvatar style={styles.avatar} uri={profileImageUrl} />
+            </View>
+          </View>
+
+          <View style={styles.bodyColumn}>
+            <View style={styles.body}>
+              <View style={styles.row}>
+                <Text
+                  accessibilityRole="link"
+                  children={timestamp}
+                  href={`/${screenName}/status/${id}`}
+                  style={styles.timestamp}
+                />
+                <UserNames fullName={fullName} screenName={screenName} />
+              </View>
+
+              <View accessibilityRole="heading" aria-level="4">
+                <TweetText displayMode={'links'} lang={lang} textParts={textParts} />
+              </View>
+
+              {media
+                ? <View style={styles.richContent}>
+                    <AspectRatio ratio={16 / 9}>
+                      <Image
+                        resizeMode={Image.resizeMode.cover}
+                        source={media.source}
+                        style={styles.media}
+                      />
+                    </AspectRatio>
+                  </View>
+                : null}
+
+            </View>
+
+            <TweetActionsBar
+              actions={[
+                { name: 'reply', label: 'Reply' },
+                {
+                  name: 'retweet',
+                  label: 'Retweet',
+                  count: tweet.retweet_count,
+                  highlighted: tweet.retweeted
+                },
+                {
+                  name: 'like',
+                  label: 'Like',
+                  count: tweet.favorite_count,
+                  highlighted: tweet.favorited
+                },
+                { name: 'directMessage', label: 'Direct Message' }
+              ]}
+              style={styles.actionBar}
+            />
+          </View>
+        </GridView>
+      </View>
+    );
+  }
+}
+
+const styles = StyleSheet.create({
+  root: {
+    paddingVertical: theme.createLength(theme.spaceY * 0.75, 'rem'),
+    paddingHorizontal: theme.createLength(theme.spaceX, 'rem')
+  },
+  avatarColumn: {
+    flexGrow: 1,
+    minWidth: 32
+  },
+  bodyColumn: {
+    flexGrow: 7
+  },
+  row: {
+    flexDirection: 'row',
+    justifyContent: 'space-between'
+  },
+  avatarLink: {
+    display: 'block',
+    flexShrink: 1,
+    flexGrow: 0,
+    width: '100%'
+  },
+  avatar: {
+    width: '100%'
+  },
+  body: {
+    marginTop: '-0.15rem'
+  },
+  timestamp: {
+    color: theme.colors.deepGray,
+    marginLeft: theme.createLength(theme.spaceX, 'rem'),
+    order: 1,
+    textDecorationLine: 'none',
+    whiteSpace: 'nowrap'
+  },
+  actionBar: {
+    marginTop: theme.createLength(theme.spaceY * 0.5, 'rem')
+  },
+  richContent: {
+    borderRadius: '0.35rem',
+    marginTop: theme.createLength(theme.spaceY * 0.5, 'rem'),
+    overflow: 'hidden'
+  },
+  media: {
+    ...StyleSheet.absoluteFillObject,
+    margin: 'auto',
+    width: 'auto',
+    height: 'auto'
+  }
+});
+
+export default Tweet;

performance/components/TweetAction/index.js

@@ -0,0 +1,77 @@
+import IconReply from '../Icons/Reply';
+import IconHeart from '../Icons/Heart';
+import IconRetweet from '../Icons/Retweet';
+import IconDirectMessage from '../Icons/DirectMessage';
+import { Text, View, StyleSheet } from 'react-native';
+import React, { PropTypes } from 'react';
+import theme from '../theme';
+
+const getIcon = (icon, highlighted) => {
+  switch (icon) {
+    case 'like':
+      return <IconHeart />;
+    case 'reply':
+      return <IconReply />;
+    case 'retweet':
+      return <IconRetweet />;
+    case 'directMessage':
+      return <IconDirectMessage />;
+    default:
+      return null;
+  }
+};
+
+export default class TweetAction extends React.Component {
+  static displayName = 'TweetAction';
+
+  static propTypes = {
+    count: PropTypes.number,
+    displayMode: PropTypes.oneOf(['like', 'reply', 'retweet', 'directMessage']),
+    highlighted: PropTypes.bool,
+    onPress: PropTypes.func,
+    style: PropTypes.object
+  };
+
+  render() {
+    const { count, displayMode, highlighted, onPress, style } = this.props;
+
+    return (
+      <View accessibilityRole="button" onPress={onPress} style={[styles.root, style]}>
+        <Text
+          style={[
+            styles.inner,
+            displayMode === 'like' && highlighted && styles.likedColor,
+            displayMode === 'retweet' && highlighted && styles.retweetedColor
+          ]}
+        >
+          {getIcon(displayMode, highlighted)}
+          {count > 0 ? <Text style={styles.count}>{count}</Text> : null}
+        </Text>
+      </View>
+    );
+  }
+}
+
+const styles = StyleSheet.create({
+  root: {
+    minHeight: theme.createLength(theme.lineHeight, 'rem'),
+    overflow: 'visible',
+    userSelect: 'none',
+    whiteSpace: 'nowrap'
+  },
+  inner: {
+    alignItems: 'center',
+    color: theme.colors.deepGray,
+    display: 'flex',
+    flexDirection: 'row'
+  },
+  count: {
+    marginLeft: '0.25em'
+  },
+  retweetedColor: {
+    color: theme.colors.green
+  },
+  likedColor: {
+    color: theme.colors.red
+  }
+});

performance/components/TweetActionsBar/index.js

@@ -0,0 +1,51 @@
+import TweetAction from '../TweetAction';
+import { View, StyleSheet } from 'react-native';
+import React, { PropTypes, PureComponent } from 'react';
+
+const actionNames = ['reply', 'retweet', 'like', 'directMessage'];
+
+export default class TweetActionsBar extends PureComponent {
+  static propTypes = {
+    actions: PropTypes.arrayOf(
+      PropTypes.shape({
+        count: PropTypes.number,
+        label: PropTypes.string,
+        highlighted: PropTypes.bool,
+        name: PropTypes.oneOf(actionNames).isRequired,
+        onPress: PropTypes.func
+      })
+    ),
+    style: PropTypes.object
+  };
+
+  render() {
+    const { actions, style } = this.props;
+
+    /* eslint-disable react/jsx-handler-names */
+    return (
+      <View style={[styles.root, style]}>
+        {actions.map((action, i) => (
+          <TweetAction
+            accessibilityLabel={actions.label}
+            count={action.count}
+            displayMode={action.name}
+            highlighted={action.highlighted}
+            key={i}
+            onPress={action.onPress}
+            style={styles.action}
+          />
+        ))}
+      </View>
+    );
+  }
+}
+
+const styles = StyleSheet.create({
+  root: {
+    flexDirection: 'row'
+  },
+  action: {
+    display: 'block',
+    marginRight: '10%'
+  }
+});

performance/components/TweetText/index.js

@@ -0,0 +1,28 @@
+import AppText from '../AppText';
+import TweetTextPart from '../TweetTextPart';
+import React, { PropTypes } from 'react';
+
+class TweetText extends React.Component {
+  static displayName = 'TweetText';
+
+  static propTypes = {
+    displayMode: TweetTextPart.propTypes.displayMode,
+    lang: PropTypes.string,
+    numberOfLines: PropTypes.number,
+    textParts: PropTypes.array.isRequired
+  };
+
+  render() {
+    const { displayMode, lang, numberOfLines, textParts, ...other } = this.props;
+
+    return (
+      <AppText {...other} lang={lang} numberOfLines={numberOfLines}>
+        {textParts.map((part, i) => (
+          <TweetTextPart displayMode={displayMode} key={i} part={part} />
+        ))}
+      </AppText>
+    );
+  }
+}
+
+export default TweetText;

performance/components/TweetTextPart/index.js

@@ -0,0 +1,112 @@
+/* eslint-disable react/prop-types */
+import { Image, StyleSheet, Text } from 'react-native';
+import React, { PropTypes } from 'react';
+import theme from '../theme';
+
+const createTextEntity = ({ part }) => <Text>{`${part.prefix}${part.text}`}</Text>;
+
+const createTwemojiEntity = ({ part }) => (
+  <Image
+    accessibilityLabel={part.text}
+    draggable={false}
+    source={{ uri: part.emoji }}
+    style={styles.twemoji}
+  />
+);
+
+// @mention, #hashtag, $cashtag
+const createSymbolEntity = ({ displayMode, part }) => {
+  const links = displayMode === 'links';
+  return (
+    <Text accessibilityRole={links ? 'link' : null} href={part.url} style={[links && styles.link]}>
+      {`${part.prefix}${part.text}`}
+    </Text>
+  );
+};
+
+// internal links
+const createLinkEntity = ({ displayMode, part }) => {
+  const { displayUrl, linkRelation, url } = part;
+  const links = displayMode === 'links';
+
+  return (
+    <Text
+      accessibilityRole={links ? 'link' : null}
+      href={url}
+      rel={links ? linkRelation : null}
+      style={[links && styles.link]}
+    >
+      {displayUrl}
+    </Text>
+  );
+};
+
+// external links
+const createExternalLinkEntity = ({ displayMode, part }) => {
+  const { displayUrl, linkRelation, url } = part;
+  const links = displayMode === 'links';
+
+  return (
+    <Text
+      accessibilityRole={links ? 'link' : null}
+      href={url}
+      rel={links ? linkRelation : null}
+      style={[links && styles.link]}
+      target="_blank"
+    >
+      {displayUrl}
+    </Text>
+  );
+};
+
+class TweetTextPart extends React.Component {
+  static displayName = 'TweetTextPart';
+
+  static propTypes = {
+    displayMode: PropTypes.oneOf(['links', 'no-links']),
+    part: PropTypes.object
+  };
+
+  static defaultProps = {
+    displayMode: 'links'
+  };
+
+  render() {
+    let renderer;
+    const { isEmoji, isEntity, isHashtag, isMention, isMedia, isUrl } = this.props.part;
+
+    if (isEmoji || isEntity || isUrl || isMedia) {
+      if (isUrl) {
+        renderer = createExternalLinkEntity;
+      } else if (isHashtag || isMention) {
+        renderer = createSymbolEntity;
+      } else if (isEmoji) {
+        renderer = createTwemojiEntity;
+      } else {
+        renderer = createLinkEntity;
+      }
+    } else {
+      renderer = createTextEntity;
+    }
+
+    return renderer(this.props);
+  }
+}
+
+const styles = StyleSheet.create({
+  link: {
+    color: theme.colors.blue,
+    textDecorationLine: 'none',
+    unicodeBidi: 'embed'
+  },
+  twemoji: {
+    display: 'inline-block',
+    height: '1.25em',
+    width: '1.25em',
+    paddingRight: '0.05em',
+    paddingLeft: '0.1em',
+    verticalAlign: '-0.2em'
+  }
+});
+
+export default TweetTextPart;

performance/components/UserAvatar/index.js

@@ -0,0 +1,64 @@
+import AspectRatio from '../AspectRatio';
+import { Image, StyleSheet } from 'react-native';
+import React, { PropTypes, PureComponent } from 'react';
+import theme from '../theme';
+
+class UserAvatar extends PureComponent {
+  static displayName = 'UserAvatar';
+
+  static propTypes = {
+    accessibilityLabel: PropTypes.string,
+    circle: PropTypes.bool,
+    style: PropTypes.object,
+    uri: PropTypes.string
+  };
+
+  static defaultProps = {
+    circle: false
+  };
+
+  render() {
+    const { accessibilityLabel, circle, style, uri } = this.props;
+
+    return (
+      <AspectRatio ratio={1} style={[styles.root, style]}>
+        {uri
+          ? <Image
+              accessibilityLabel={accessibilityLabel}
+              onLoad={this._handleLoad}
+              ref={this._setImageRef}
+              source={{ uri }}
+              style={[styles.image, circle && styles.circle]}
+            />
+          : null}
+      </AspectRatio>
+    );
+  }
+
+  _handleLoad = () => {
+    this._imageRef && this._imageRef.setNativeProps(nativeProps);
+  };
+
+  _setImageRef = component => {
+    this._imageRef = component;
+  };
+}
+
+const nativeProps = { style: { backgroundColor: '#fff' } };
+
+const styles = StyleSheet.create({
+  root: {
+    borderRadius: '0.35rem'
+  },
+  circle: {
+    borderRadius: '9999px'
+  },
+  image: {
+    backgroundColor: theme.colors.fadedGray,
+    display: 'block',
+    height: '100%',
+    width: '100%'
+  }
+});
+
+export default UserAvatar;

performance/components/UserNames/index.js

@@ -0,0 +1,56 @@
+import AppText from '../AppText';
+import { StyleSheet } from 'react-native';
+import React, { PropTypes, PureComponent } from 'react';
+
+class UserNames extends PureComponent {
+  static displayName = 'UserNames';
+
+  static propTypes = {
+    fullName: PropTypes.string,
+    layout: PropTypes.oneOf(['nowrap', 'stack']),
+    onPress: PropTypes.func,
+    screenName: PropTypes.string,
+    style: PropTypes.object
+  };
+
+  static defaultProps = {
+    layout: 'nowrap'
+  };
+
+  render() {
+    const {
+      fullName,
+      layout,
+      onPress,
+      screenName,
+      style,
+      ...other
+    } = this.props;
+
+    return (
+      <AppText
+        {...other}
+        color="deepGray"
+        numberOfLines={layout === 'nowrap' ? 1 : null}
+        onPress={onPress}
+        style={[styles.root, style]}
+      >
+        <AppText color="normal" weight="bold">{fullName}</AppText>
+        {layout === 'stack' ? ' \u000A' : ' '}
+        <AppText color="deepGray" style={styles.screenName}>{`@${screenName}`}</AppText>
+      </AppText>
+    );
+  }
+}
+
+const styles = StyleSheet.create({
+  root: {
+    display: 'inline-block'
+  },
+  screenName: {
+    unicodeBidi: 'embed',
+    writingDirection: 'ltr'
+  }
+});
+
+export default UserNames;

performance/components/css-modules.js

@@ -0,0 +1,7 @@
+import Box from './Box/index.css-modules';
+import View from './View/index.css-modules';
+
+export default {
+  Box,
+  View
+};

performance/components/glamor.js

@@ -0,0 +1,7 @@
+import Box from './Box/index.glamor';
+import View from './View/index.glamor';
+
+export default {
+  Box,
+  View
+};

performance/components/platform.js

@@ -0,0 +1,7 @@
+import Box from './Box/index.platform';
+import View from './View/index.platform';
+
+export default {
+  Box,
+  View
+};

performance/components/react-native-web.js

@@ -0,0 +1,9 @@
+import Box from './Box';
+import Tweet from './Tweet';
+import { View } from 'react-native';
+
+export default {
+  Box,
+  Tweet,
+  View
+};

performance/components/styled-components.js

@@ -0,0 +1,7 @@
+import Box from './Box/index.styled';
+import View from './View/index.styled';
+
+export default {
+  Box,
+  View
+};

performance/components/theme.js

@@ -0,0 +1,37 @@
+const colors = {
+  blue: '#1B95E0',
+  lightBlue: '#71C9F8',
+  green: '#17BF63',
+  orange: '#F45D22',
+  purple: '#794BC4',
+  red: '#E0245E',
+  white: '#FFFFFF',
+  yellow: '#FFAD1F',
+  deepGray: '#657786',
+  fadedGray: '#E6ECF0',
+  faintGray: '#F5F8FA',
+  gray: '#AAB8C2',
+  lightGray: '#CCD6DD',
+  textBlack: '#14171A'
+};
+
+const fontSize = {
+  root: '14px',
+  // font scale
+  small: '0.85rem',
+  normal: '1rem',
+  large: '1.25rem'
+};
+
+module.exports = {
+  colors,
+  fontFamily: '-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", sans-serif, ' +
+    '"Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol"', // emoji fonts
+  fontSize,
+  lineHeight: 1.3125,
+  spaceX: 0.6,
+  spaceY: 1.3125,
+  createLength(num, unit) {
+    return `${num}${unit}`;
+  }
+};

performance/implementations/css-modules/index.js

@@ -1,7 +0,0 @@
-import Box from './Box';
-import View from './View';
-
-export default {
-  Box,
-  View
-};

performance/implementations/glamor/index.js

@@ -1,7 +0,0 @@
-import Box from './Box';
-import View from './View';
-
-export default {
-  Box,
-  View
-};

performance/implementations/platform/index.js

@@ -1,7 +0,0 @@
-import Box from './Box';
-import View from './View';
-
-export default {
-  Box,
-  View
-};

performance/implementations/react-native-web/View/index.js

@@ -1,2 +0,0 @@
-import View from 'react-native/components/View';
-export default View;

performance/implementations/react-native-web/index.js

@@ -1,7 +0,0 @@
-import Box from './Box';
-import View from './View';
-
-export default {
-  Box,
-  View
-};

performance/implementations/styled-components/index.js

@@ -1,7 +0,0 @@
-import Box from './Box';
-import View from './View';
-
-export default {
-  Box,
-  View
-};

performance/index.js

@@ -1,13 +1,16 @@
-import cssModules from './implementations/css-modules';
-import glamor from './implementations/glamor';
-import platform from './implementations/platform';
-import reactNative from './implementations/react-native-web';
-import styledComponents from './implementations/styled-components';
+import cssModules from './components/css-modules';
+import glamor from './components/glamor';
+import platform from './components/platform';
+import reactNative from './components/react-native-web';
+import styledComponents from './components/styled-components';
 
 import renderDeepTree from './tests/renderDeepTree';
+import renderTweet from './tests/renderTweet';
 import renderWideTree from './tests/renderWideTree';
 
 const tests = [
+  // tweet
+  () => renderTweet('react-native-web', reactNative),
   // deep tree
   () => renderDeepTree('platform', platform),
   () => renderDeepTree('css-modules', cssModules),

performance/tests/renderDeepTree.js

@@ -1,5 +1,5 @@
-import createRenderBenchmark from '../modules/createRenderBenchmark';
-import NestedTree from '../modules/NestedTree';
+import createRenderBenchmark from '../createRenderBenchmark';
+import NestedTree from '../components/NestedTree';
 import React from 'react';
 
 const renderDeepTree = (label, components) => createRenderBenchmark({

performance/tests/renderTweet.js

@@ -0,0 +1,112 @@
+import createRenderBenchmark from '../createRenderBenchmark';
+import Tweet from '../components/Tweet';
+import React from 'react';
+
+const tweet1 = {
+  favorite_count: 30,
+  favorited: true,
+  id: '834889712556875776',
+  lang: 'en',
+  retweet_count: 6,
+  retweeted: false,
+  textParts: [
+    {
+      prefix: '',
+      text: 'Living burrito to burrito '
+    },
+    {
+      emoji: 'https://abs-0.twimg.com/emoji/v2/svg/1f32f.svg',
+      isEmoji: true,
+      prefix: '',
+      text: '🌯'
+    },
+    {
+      emoji: 'https://abs-0.twimg.com/emoji/v2/svg/1f32f.svg',
+      isEmoji: true,
+      prefix: '',
+      text: '🌯'
+    },
+    {
+      emoji: 'https://abs-0.twimg.com/emoji/v2/svg/1f32f.svg',
+      isEmoji: true,
+      prefix: '',
+      text: '🌯'
+    }
+  ],
+  timestamp: 'Feb 23',
+  user: {
+    fullName: 'Nicolas',
+    screenName: 'necolas',
+    profileImageUrl: 'https://pbs.twimg.com/profile_images/804365942360719360/dQnPejph_normal.jpg'
+  }
+};
+
+const tweet2 = {
+  favorite_count: 84,
+  favorited: false,
+  id: '730896800060579840',
+  lang: 'en',
+  media: {
+    source: {
+      uri: 'https://pbs.twimg.com/media/CiSqvsJVEAAtLZ1.jpg',
+      width: 600,
+      height: 338
+    }
+  },
+  retweet_count: 4,
+  retweeted: true,
+  textParts: [
+    {
+      prefix: '',
+      text: 'Presenting '
+    },
+    {
+      displayUrl: 'mobile.twitter.com',
+      expandedUrl: 'https://mobile.twitter.com',
+      isEntity: true,
+      isUrl: true,
+      linkRelation: 'nofollow',
+      prefix: '',
+      text: '',
+      textDirection: 'ltr',
+      url: 'https://t.co/4hRCAxiUUG'
+    },
+    {
+      prefix: '',
+      text: ' with '
+    },
+    {
+      isEntity: true,
+      isMention: true,
+      prefix: '@',
+      text: 'davidbellona',
+      textDirection: 'ltr',
+      url: '/davidbellona'
+    },
+    {
+      prefix: '',
+      text: " at Twitter's all hands meeting "
+    }
+  ],
+  timestamp: 'May 12',
+  user: {
+    fullName: 'Nicolas',
+    screenName: 'necolas',
+    profileImageUrl: 'https://pbs.twimg.com/profile_images/804365942360719360/dQnPejph_normal.jpg'
+  }
+};
+
+const renderTweet = (label, components) => createRenderBenchmark({
+  name: `Tweet [${label}]`,
+  runs: 10,
+  getElement() {
+    return (
+      <div style={{ width: 500 }}>
+        <Tweet tweet={tweet1} />
+        <Tweet tweet={tweet2} />
+      </div>
+    );
+  }
+});
+
+export default renderTweet;

performance/tests/renderWideTree.js

@@ -1,5 +1,5 @@
-import createRenderBenchmark from '../modules/createRenderBenchmark';
-import NestedTree from '../modules/NestedTree';
+import createRenderBenchmark from '../createRenderBenchmark';
+import NestedTree from '../components/NestedTree';
 import React from 'react';
 
 const renderWideTree = (label, components) => createRenderBenchmark({