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import {
colors,
constants as sharedConstants,
EtherscanLinkSuffixes,
Styles,
utils as sharedUtils,
} from '@0xproject/react-shared';
import * as _ from 'lodash';
import * as React from 'react';
import { analytics } from 'ts/utils/analytics';
import { WebsiteBackendTokenInfo } from 'ts/types';
export interface TopTokensProps {
tokens: WebsiteBackendTokenInfo[];
networkId: number;
}
const styles: Styles = {
tokenLabel: {
textDecoration: 'none',
color: colors.mediumBlue,
fontSize: 14,
},
followingTokenLabel: {
paddingLeft: 16,
},
};
export const TopTokens: React.StatelessComponent<TopTokensProps> = (props: TopTokensProps) => {
return (
<div className="flex">
{_.map(props.tokens, (tokenInfo: WebsiteBackendTokenInfo, index: number) => {
const firstItemStyle = { ...styles.tokenLabel, ...styles.followingTokenLabel };
const style = index !== 0 ? firstItemStyle : styles.tokenLabel;
return (
<TokenLink
key={tokenInfo.address}
tokenInfo={tokenInfo}
style={style}
networkId={props.networkId}
/>
);
})}
</div>
);
};
interface TokenLinkProps {
tokenInfo: WebsiteBackendTokenInfo;
style: React.CSSProperties;
networkId: number;
}
interface TokenLinkState {
isHovering: boolean;
}
class TokenLink extends React.Component<TokenLinkProps, TokenLinkState> {
constructor(props: TokenLinkProps) {
super(props);
this.state = {
isHovering: false,
};
}
public render(): React.ReactNode {
const style = {
...this.props.style,
cursor: 'pointer',
opacity: this.state.isHovering ? 0.5 : 1,
};
const networkName = sharedConstants.NETWORK_NAME_BY_ID[this.props.networkId];
const eventLabel = `${this.props.tokenInfo.symbol}-${networkName}`;
const onClick = (event: React.MouseEvent<HTMLElement>) => {
event.stopPropagation();
analytics.logEvent('Portal', 'Token Click', eventLabel);
};
return (
<a
href={tokenLinkFromToken(this.props.tokenInfo, this.props.networkId)}
target="_blank"
style={style}
onMouseEnter={this._onToggleHover.bind(this, true)}
onMouseLeave={this._onToggleHover.bind(this, false)}
onClick={onClick}
>
{this.props.tokenInfo.symbol}
</a>
);
}
private _onToggleHover(isHovering: boolean): void {
this.setState({
isHovering,
});
}
}
function tokenLinkFromToken(tokenInfo: WebsiteBackendTokenInfo, networkId: number): string {
return sharedUtils.getEtherScanLinkIfExists(tokenInfo.address, networkId, EtherscanLinkSuffixes.Address);
}
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