Add TypedText component and use it on landing page

7 files changed, 119 insertions, 1 deletions

diff --git a/packages/typescript-typings/types/react-typist/index.d.ts b/packages/typescript-typings/types/react-typist/index.d.ts
new file mode 100644
index 000000000..692c596a5
--- /dev/null
+++ b/packages/typescript-typings/types/react-typist/index.d.ts
@@ -0,0 +1 @@
+declare module 'react-typist';
diff --git a/packages/website/package.json b/packages/website/package.json
index 3b6754fb3..a7da19c9e 100644
--- a/packages/website/package.json
+++ b/packages/website/package.json
@@ -52,6 +52,7 @@
         "react-router-dom": "^4.1.1",
         "react-scroll": "0xproject/react-scroll#similar-to-pr-330",
         "react-tooltip": "^3.2.7",
+        "react-typist": "^2.0.4",
         "redux": "^3.6.0",
         "redux-devtools-extension": "^2.13.2",
         "semver-sort": "0.0.4",
diff --git a/packages/website/ts/components/ui/text.tsx b/packages/website/ts/components/ui/text.tsx
index 734483564..cd8f290e3 100644
--- a/packages/website/ts/components/ui/text.tsx
+++ b/packages/website/ts/components/ui/text.tsx
@@ -20,6 +20,7 @@ export interface TextProps {
     onClick?: (event: React.MouseEvent<HTMLElement>) => void;
     hoverColor?: string;
     noWrap?: boolean;
+    display?: string;
 }
 
 const PlainText: React.StatelessComponent<TextProps> = ({ children, className, onClick, Tag }) => (
@@ -41,6 +42,7 @@ export const Text = styled(PlainText)`
     ${props => (props.onClick ? 'cursor: pointer' : '')};
     transition: color 0.5s ease;
     ${props => (props.noWrap ? 'white-space: nowrap' : '')};
+    ${props => (props.display ? `display: ${props.display}` : '')};
     &:hover {
         ${props => (props.onClick ? `color: ${props.hoverColor || darken(0.3, props.fontColor)}` : '')};
     }
diff --git a/packages/website/ts/components/ui/typed_text.tsx b/packages/website/ts/components/ui/typed_text.tsx
new file mode 100644
index 000000000..a59309139
--- /dev/null
+++ b/packages/website/ts/components/ui/typed_text.tsx
@@ -0,0 +1,75 @@
+import * as _ from 'lodash';
+import { darken } from 'polished';
+import * as React from 'react';
+import Typist from 'react-typist';
+
+import { Text, TextProps } from 'ts/components/ui/text';
+
+import 'react-typist/dist/Typist.css';
+
+export interface TypedTextProps extends TextProps {
+    textList: string[];
+    shouldRepeat?: boolean;
+    wordDelayMs?: number;
+    avgKeystrokeDelayMs?: number;
+    stdKeystrokeDelay?: number;
+}
+
+export interface TypedTextState {
+    cycleCount: number;
+}
+
+export class TypedText extends React.Component<TypedTextProps, TypedTextState> {
+    public static defaultProps = {
+        shouldRepeat: false,
+        avgKeystrokeDelayMs: 90,
+        wordDelayMs: 1000,
+    };
+    public state = {
+        cycleCount: 0,
+    };
+    public render(): React.ReactNode {
+        const {
+            textList,
+            shouldRepeat,
+            wordDelayMs,
+            avgKeystrokeDelayMs,
+            stdKeystrokeDelay,
+            ...textProps
+        } = this.props;
+        const { cycleCount } = this.state;
+        if (_.isEmpty(textList)) {
+            return null;
+        }
+        const typistChildren: React.ReactNode[] = [];
+        _.forEach(textList, text => {
+            typistChildren.push(
+                <Text key={`text-${text}-${cycleCount}`} {...textProps}>
+                    {text}
+                </Text>,
+            );
+            if (wordDelayMs) {
+                typistChildren.push(<Typist.Delay key={`delay-${text}-${cycleCount}`} ms={wordDelayMs} />);
+            }
+            typistChildren.push(<Typist.Backspace key={`backspace-${text}-${cycleCount}`} count={text.length} />);
+        });
+        return (
+            <Typist
+                avgTypingDelay={avgKeystrokeDelayMs}
+                stdTypingDelay={stdKeystrokeDelay}
+                className="inline"
+                key={`typist-key-${cycleCount}`}
+                onTypingDone={this._onTypingDone.bind(this)}
+            >
+                {typistChildren}
+            </Typist>
+        );
+    }
+    private _onTypingDone(): void {
+        if (this.props.shouldRepeat) {
+            this.setState({
+                cycleCount: this.state.cycleCount + 1,
+            });
+        }
+    }
+}
diff --git a/packages/website/ts/index.tsx b/packages/website/ts/index.tsx
index 9e59b00ac..6b709df6a 100644
--- a/packages/website/ts/index.tsx
+++ b/packages/website/ts/index.tsx
@@ -23,6 +23,7 @@ trackedTokenStorage.clearIfRequired();
 
 import 'basscss/css/basscss.css';
 import 'less/all.less';
+import 'react-typist/dist/Typist.css';
 
 // We pass modulePromise returning lambda instead of module promise,
 // cause we only want to import the module when the user navigates to the page.
diff --git a/packages/website/ts/pages/landing/landing.tsx b/packages/website/ts/pages/landing/landing.tsx
index 72f6bdc9c..fc4194849 100644
--- a/packages/website/ts/pages/landing/landing.tsx
+++ b/packages/website/ts/pages/landing/landing.tsx
@@ -10,6 +10,7 @@ import { CallToAction } from 'ts/components/ui/button';
 import { Container } from 'ts/components/ui/container';
 import { Image } from 'ts/components/ui/image';
 import { Text } from 'ts/components/ui/text';
+import { TypedText } from 'ts/components/ui/typed_text';
 import { Dispatcher } from 'ts/redux/dispatcher';
 import { Deco, Key, Language, ScreenWidths, WebsitePaths } from 'ts/types';
 import { constants } from 'ts/utils/constants';
@@ -43,12 +44,26 @@ const THROTTLE_TIMEOUT = 100;
 const WHATS_NEW_TITLE = 'V2 of the 0x Protocol is now live!';
 // TODO: Update this url
 const WHATS_NEW_URL = 'https://blog.0xproject.com/18-ideas-for-0x-relayers-in-2018-80a1498b955f';
+<<<<<<< HEAD
 const TITLE_STYLE: React.CSSProperties = {
     fontFamily: 'Roboto Mono',
     color: colors.grey,
     fontWeight: 300,
     letterSpacing: 3,
 };
+=======
+const ROTATING_LIST = [
+    'tokens',
+    'game items',
+    'digital art',
+    'outcomes',
+    'stocks',
+    'derivatives',
+    'loans',
+    'cats',
+    'Everything.',
+];
+>>>>>>> Add TypedText component and use it on landing page
 
 const relayerProjects: Project[] = [
     {
@@ -176,12 +191,29 @@ export class Landing extends React.Component<LandingProps, LandingState> {
                                 <Text
                                     className="sm-pb2"
                                     fontFamily="Roboto"
+                                    display="inline-block"
                                     fontColor={colors.grey300}
                                     fontWeight={500}
                                     lineHeight="1.2em"
                                     fontSize={isSmallScreen ? '28px' : '36px'}
                                 >
                                     {this.props.translate.get(Key.TopHeader, Deco.Cap)}
+                                    {this.props.translate.getLanguage() === Language.English && (
+                                        <React.Fragment>
+                                            {' '}
+                                            for{' '}
+                                            <TypedText
+                                                fontFamily="Roboto"
+                                                display="inline-block"
+                                                fontColor={colors.white}
+                                                fontWeight={700}
+                                                lineHeight="1.2em"
+                                                fontSize={isSmallScreen ? '28px' : '36px'}
+                                                textList={ROTATING_LIST}
+                                                shouldRepeat={true}
+                                            />
+                                        </React.Fragment>
+                                    )}
                                 </Text>
                                 <Container className="pt3 clearfix sm-mx-auto" maxWidth="390px">
                                     <div className="lg-pr2 md-pr2 lg-col lg-col-6 sm-center sm-col sm-col-12 mb2">
diff --git a/yarn.lock b/yarn.lock
index fb79e4a15..c5adc7814 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10991,7 +10991,7 @@ promzard@^0.3.0:
   dependencies:
     read "1"
 
-prop-types@^15.5.0, prop-types@^15.6.2:
+prop-types@^15.5.0, prop-types@^15.5.10, prop-types@^15.6.2:
   version "15.6.2"
   resolved "https://registry.npmjs.org/prop-types/-/prop-types-15.6.2.tgz#05d5ca77b4453e985d60fc7ff8c859094a497102"
   dependencies:
@@ -11459,6 +11459,12 @@ react-transition-group@^2.2.1:
     prop-types "^15.6.2"
     react-lifecycles-compat "^3.0.4"
 
+react-typist@^2.0.4:
+  version "2.0.4"
+  resolved "https://registry.npmjs.org/react-typist/-/react-typist-2.0.4.tgz#e7ee4de53ead913d363d38f07b700c00ce271be0"
+  dependencies:
+    prop-types "^15.5.10"
+
 react@^16.3.2, react@^16.4.2:
   version "16.4.2"
   resolved "https://registry.npmjs.org/react/-/react-16.4.2.tgz#2cd90154e3a9d9dd8da2991149fdca3c260e129f"