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import * as _ from 'lodash';
import * as React from 'react';
import { ColorOption } from '../style/theme';
import { ERC20Asset } from '../types';
import { analytics } from '../util/analytics';
import { assetUtils } from '../util/asset';
import { SearchInput } from './search_input';
import { Circle } from './ui/circle';
import { Container } from './ui/container';
import { Flex } from './ui/flex';
import { Text } from './ui/text';
export interface ERC20TokenSelectorProps {
tokens: ERC20Asset[];
onTokenSelect: (token: ERC20Asset) => void;
}
export interface ERC20TokenSelectorState {
searchQuery: string;
}
export class ERC20TokenSelector extends React.PureComponent<ERC20TokenSelectorProps> {
public state: ERC20TokenSelectorState = {
searchQuery: '',
};
public render(): React.ReactNode {
const { tokens } = this.props;
return (
<Container height="100%">
<Container marginBottom="10px">
<Text fontColor={ColorOption.darkGrey} fontSize="18px" fontWeight="600" lineHeight="22px">
Select Token
</Text>
</Container>
<SearchInput
placeholder="Search tokens..."
width="100%"
value={this.state.searchQuery}
onChange={this._handleSearchInputChange}
tabIndex={-1}
/>
<Container overflow="scroll" height="calc(100% - 90px)" marginTop="10px">
<TokenRowFilter
tokens={tokens}
onClick={this._handleTokenClick}
searchQuery={this.state.searchQuery}
/>
</Container>
</Container>
);
}
private readonly _handleSearchInputChange = (event: React.ChangeEvent<HTMLInputElement>): void => {
const searchQuery = event.target.value;
this.setState({
searchQuery,
});
analytics.trackTokenSelectorSearched(searchQuery);
};
private readonly _handleTokenClick = (token: ERC20Asset): void => {
this.props.onTokenSelect(token);
};
}
interface TokenRowFilterProps {
tokens: ERC20Asset[];
onClick: (token: ERC20Asset) => void;
searchQuery: string;
}
class TokenRowFilter extends React.Component<TokenRowFilterProps> {
public render(): React.ReactNode {
return _.map(this.props.tokens, token => {
if (!this._isTokenQueryMatch(token)) {
return null;
}
return <TokenSelectorRow key={token.assetData} token={token} onClick={this.props.onClick} />;
});
}
public shouldComponentUpdate(nextProps: TokenRowFilterProps): boolean {
const arePropsDeeplyEqual = _.isEqual(nextProps, this.props);
return !arePropsDeeplyEqual;
}
private readonly _isTokenQueryMatch = (token: ERC20Asset): boolean => {
const { searchQuery } = this.props;
const searchQueryLowerCase = searchQuery.toLowerCase().trim();
if (searchQueryLowerCase === '') {
return true;
}
const tokenName = token.metaData.name.toLowerCase();
const tokenSymbol = token.metaData.symbol.toLowerCase();
return _.startsWith(tokenSymbol, searchQueryLowerCase) || _.startsWith(tokenName, searchQueryLowerCase);
};
}
interface TokenSelectorRowProps {
token: ERC20Asset;
onClick: (token: ERC20Asset) => void;
}
class TokenSelectorRow extends React.PureComponent<TokenSelectorRowProps> {
public render(): React.ReactNode {
const { token } = this.props;
const circleColor = token.metaData.primaryColor || 'black';
const displaySymbol = assetUtils.bestNameForAsset(token);
return (
<Container
padding="12px 0px"
borderBottom="1px solid"
borderColor={ColorOption.feintGrey}
backgroundColor={ColorOption.white}
width="100%"
onClick={this._handleClick}
darkenOnHover={true}
cursor="pointer"
>
<Container marginLeft="5px">
<Flex justify="flex-start">
<Container marginRight="10px">
<Circle diameter={26} rawColor={circleColor}>
<Flex height="100%" width="100%">
<TokenSelectorRowIcon token={token} />
</Flex>
</Circle>
</Container>
<Text fontSize="14px" fontWeight={700} fontColor={ColorOption.black}>
{displaySymbol}
</Text>
<Container margin="0px 5px">
<Text fontSize="14px"> - </Text>
</Container>
<Text fontSize="14px">{token.metaData.name}</Text>
</Flex>
</Container>
</Container>
);
}
private readonly _handleClick = (): void => {
this.props.onClick(this.props.token);
};
}
interface TokenSelectorRowIconProps {
token: ERC20Asset;
}
const getTokenIcon = (symbol: string): React.StatelessComponent | undefined => {
try {
return require(`../assets/icons/${symbol}.svg`) as React.StatelessComponent;
} catch (e) {
// Can't find icon
return undefined;
}
};
const TokenSelectorRowIcon: React.StatelessComponent<TokenSelectorRowIconProps> = props => {
const { token } = props;
const iconUrlIfExists = token.metaData.iconUrl;
const TokenIcon = getTokenIcon(token.metaData.symbol);
const displaySymbol = assetUtils.bestNameForAsset(token);
if (!_.isUndefined(iconUrlIfExists)) {
return <img src={iconUrlIfExists} />;
} else if (!_.isUndefined(TokenIcon)) {
return <TokenIcon />;
} else {
return (
<Text fontColor={ColorOption.white} fontSize="8px">
{displaySymbol}
</Text>
);
}
};
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