Merge branch 'development' into fix/instant/signature-denied

* development: (914 commits)
  Unfix compiler version except for top level contracts
  Move OrderValidator to extensions
  Update CHANGELOG
  Remove assembly version of matchOrders
  Add getOrderInfo check before calling fillOrder
  Update comments and hard code function selector constants
  Fix build after rebase
  update comments
  Fix build and add back tests
  Update dependency paths
  Add OrderMatcher tests
  feat: Add OrderMatcher contract that takes spread in multiple assets by calling `matchOrders` followed by `fillOrder`
  Update CHANGELOG
  Use more efficient equality checks
  Add note about input validation
  Use more efficient check for overflow
  Check if amount == 0 before doing division
  Reapply prettier
  New relayers
  feat(sra_client.py): Test deployed pkg via tox
  ...

1 files changed, 201 insertions, 0 deletions

diff --git a/packages/website/ts/@next/components/newsletter_form.tsx b/packages/website/ts/@next/components/newsletter_form.tsx
new file mode 100644
index 000000000..ce6b04993
--- /dev/null
+++ b/packages/website/ts/@next/components/newsletter_form.tsx
@@ -0,0 +1,201 @@
+import * as React from 'react';
+import styled, { withTheme } from 'styled-components';
+
+import { ThemeValuesInterface } from 'ts/@next/components/siteWrap';
+import { colors } from 'ts/style/colors';
+import { errorReporter } from 'ts/utils/error_reporter';
+
+interface FormProps {
+    theme: ThemeValuesInterface;
+}
+
+interface InputProps {
+    isSubmitted: boolean;
+    name: string;
+    type: string;
+    label: string;
+    textColor: string;
+}
+
+interface ArrowProps {
+    isSubmitted: boolean;
+}
+
+const Input = React.forwardRef((props: InputProps, ref: React.Ref<HTMLInputElement>) => {
+    const { name, label, type } = props;
+    const id = `input-${name}`;
+
+    return (
+        <InnerInputWrapper {...props}>
+            <label className="visuallyHidden" htmlFor={id}>
+                {label}
+            </label>
+            <StyledInput ref={ref} id={id} placeholder={label} type={type || 'text'} {...props} />
+        </InnerInputWrapper>
+    );
+});
+
+class Form extends React.Component<FormProps> {
+    public emailInput = React.createRef<HTMLInputElement>();
+    public state = {
+        isSubmitted: false,
+    };
+    public render(): React.ReactNode {
+        const { isSubmitted } = this.state;
+        const { theme } = this.props;
+
+        return (
+            <StyledForm onSubmit={this._onSubmitAsync.bind(this)}>
+                <InputWrapper>
+                    <Input
+                        isSubmitted={isSubmitted}
+                        name="email"
+                        type="email"
+                        label="Email Address"
+                        ref={this.emailInput}
+                        required={true}
+                        textColor={theme.textColor}
+                    />
+
+                    <SubmitButton>
+                        <Arrow
+                            isSubmitted={isSubmitted}
+                            width="22"
+                            height="17"
+                            fill="none"
+                            xmlns="http://www.w3.org/2000/svg"
+                        >
+                            <path
+                                d="M13.066 0l-1.068 1.147 6.232 6.557H0v1.592h18.23l-6.232 6.557L13.066 17l8.08-8.5-8.08-8.5z"
+                                fill="#CBCBCB"
+                            />
+                        </Arrow>
+                    </SubmitButton>
+                    <SuccessText isSubmitted={isSubmitted}>🎉 Thank you for signing up!</SuccessText>
+                </InputWrapper>
+                <Text>Subscribe to our newsletter for updates in the 0x ecosystem</Text>
+            </StyledForm>
+        );
+    }
+
+    private async _onSubmitAsync(e: Event): Promise<void> {
+        e.preventDefault();
+
+        const email = this.emailInput.current.value;
+        const referrer = 'https://0x.org/';
+
+        this.setState({ isSubmitted: true });
+
+        if (email === 'triggererror@0xproject.org') {
+            throw new Error('Manually triggered error');
+        }
+
+        try {
+            await fetch('https://website-api.0x.org/newsletter_subscriber/substack', {
+                method: 'post',
+                mode: 'cors',
+                headers: {
+                    'content-type': 'application/json; charset=utf-8',
+                },
+                body: JSON.stringify({ email, referrer }),
+            });
+        } catch (e) {
+            errorReporter.report(e);
+        }
+    }
+}
+
+export const NewsletterForm = withTheme(Form);
+
+const StyledForm = styled.form`
+    appearance: none;
+    border: 0;
+    color: ${colors.white};
+    padding: 13px 0 14px;
+    margin-top: 27px;
+`;
+
+const StyledInput =
+    styled.input <
+    InputProps >
+    `
+    appearance: none;
+    background-color: transparent;
+    border: 0;
+    border-bottom: 1px solid #393939;
+    color: ${props => props.textColor || '#fff'};
+    font-size: 1.294117647rem;
+    padding: 15px 0;
+    outline: none;
+    width: 100%;
+
+    &::placeholder {
+        color: #B1B1B1; // #9D9D9D on light theme
+    }
+`;
+
+const InputWrapper = styled.div`
+    position: relative;
+`;
+
+const InnerInputWrapper =
+    styled.div <
+    ArrowProps >
+    `
+    opacity: ${props => props.isSubmitted && 0};
+    visibility: ${props => props.isSubmitted && 'hidden'};
+    transition: opacity 0.25s ease-in-out, visibility 0.25s ease-in-out;
+    transition-delay: 0.30s;
+`;
+
+const SubmitButton = styled.button`
+    width: 44px;
+    height: 44px;
+    background-color: transparent;
+    border: 0;
+    position: absolute;
+    right: 0;
+    top: calc(50% - 22px);
+    overflow: hidden;
+    outline: 0;
+
+    &:focus-within {
+        //background-color: #eee;
+    }
+`;
+
+const Text = styled.p`
+    color: #656565;
+    font-size: 0.833333333rem;
+    font-weight: 300;
+    line-height: 1.2em;
+    margin-top: 15px;
+`;
+
+const SuccessText =
+    styled.p <
+    ArrowProps >
+    `
+    color: #B1B1B1;
+    font-size: 1rem;
+    font-weight: 300;
+    line-height: 1.2em;
+    padding-top: 25px;
+    position: absolute;
+    left: 0;
+    top: 0;
+    text-align: left;
+    right: 50px;
+    opacity: ${props => (props.isSubmitted ? 1 : 0)};
+    visibility: ${props => (props.isSubmitted ? 'visible' : 'hidden')};
+    transition: opacity 0.25s ease-in-out, visibility 0.25s ease-in-out;
+    transition-delay: 0.55s;
+`;
+
+const Arrow =
+    styled.svg <
+    ArrowProps >
+    `
+    transform: ${props => props.isSubmitted && `translateX(44px)`};
+    transition: transform 0.25s ease-in-out;
+`;