metamask-extension/ui/components/app/asset-list/asset-list.js

import React, { useContext, useState } from 'react';
import PropTypes from 'prop-types';
import { useSelector } from 'react-redux';
import ImportTokenLink from '../import-token-link';
import TokenList from '../token-list';
import AssetListItem from '../asset-list-item';
import { PRIMARY, SECONDARY } from '../../../helpers/constants/common';
import { useUserPreferencedCurrency } from '../../../hooks/useUserPreferencedCurrency';
import {
  getSelectedAccountCachedBalance,
  getShouldShowFiat,
  getNativeCurrencyImage,
  getDetectedTokensInCurrentNetwork,
  getDisplayDetectedTokensLink,
} from '../../../selectors';
import { getNativeCurrency } from '../../../ducks/metamask/metamask';
import { useCurrencyDisplay } from '../../../hooks/useCurrencyDisplay';
import Typography from '../../ui/typography/typography';
import Box from '../../ui/box/box';
import {
  COLORS,
  TYPOGRAPHY,
  FONT_WEIGHT,
  JUSTIFY_CONTENT,
} from '../../../helpers/constants/design-system';
import { useI18nContext } from '../../../hooks/useI18nContext';
import { MetaMetricsContext } from '../../../contexts/metametrics';
import { EVENT, EVENT_NAMES } from '../../../../shared/constants/metametrics';
import DetectedToken from '../detected-token/detected-token';
import DetectedTokensLink from './detetcted-tokens-link/detected-tokens-link';

const AssetList = ({ onClickAsset }) => {
  const t = useI18nContext();

  const [showDetectedTokens, setShowDetectedTokens] = useState(false);

  const selectedAccountBalance = useSelector(getSelectedAccountCachedBalance);
  const nativeCurrency = useSelector(getNativeCurrency);
  const showFiat = useSelector(getShouldShowFiat);
  const trackEvent = useContext(MetaMetricsContext);
  const balance = useSelector(getSelectedAccountCachedBalance);
  const balanceIsLoading = !balance;

  const {
    currency: primaryCurrency,
    numberOfDecimals: primaryNumberOfDecimals,
  } = useUserPreferencedCurrency(PRIMARY, { ethNumberOfDecimals: 4 });
  const {
    currency: secondaryCurrency,
    numberOfDecimals: secondaryNumberOfDecimals,
  } = useUserPreferencedCurrency(SECONDARY, { ethNumberOfDecimals: 4 });

  const [, primaryCurrencyProperties] = useCurrencyDisplay(
    selectedAccountBalance,
    {
      numberOfDecimals: primaryNumberOfDecimals,
      currency: primaryCurrency,
    },
  );

  const [secondaryCurrencyDisplay, secondaryCurrencyProperties] =
    useCurrencyDisplay(selectedAccountBalance, {
      numberOfDecimals: secondaryNumberOfDecimals,
      currency: secondaryCurrency,
    });

  const primaryTokenImage = useSelector(getNativeCurrencyImage);
  const detectedTokens = useSelector(getDetectedTokensInCurrentNetwork) || [];
  const displayDetectedTokensLink = useSelector(getDisplayDetectedTokensLink);

  return (
    <>
      <AssetListItem
        onClick={() => onClickAsset(nativeCurrency)}
        data-testid="wallet-balance"
        primary={
          primaryCurrencyProperties.value ?? secondaryCurrencyProperties.value
        }
        tokenSymbol={primaryCurrencyProperties.suffix}
        secondary={showFiat ? secondaryCurrencyDisplay : undefined}
        tokenImage={balanceIsLoading ? null : primaryTokenImage}
        identiconBorder
      />
      <TokenList
        onTokenClick={(tokenAddress) => {
          onClickAsset(tokenAddress);
          trackEvent({
            event: EVENT_NAMES.TOKEN_SCREEN_OPENED,
            category: EVENT.CATEGORIES.NAVIGATION,
            properties: {
              token_symbol: primaryCurrencyProperties.suffix,
              location: 'Home',
            },
          });
        }}
      />
      {detectedTokens.length > 0 && displayDetectedTokensLink && (
        <DetectedTokensLink setShowDetectedTokens={setShowDetectedTokens} />
      )}
      <Box marginTop={detectedTokens.length > 0 ? 0 : 4}>
        <Box justifyContent={JUSTIFY_CONTENT.CENTER}>
          <Typography
            color={COLORS.TEXT_ALTERNATIVE}
            variant={TYPOGRAPHY.H6}
            fontWeight={FONT_WEIGHT.NORMAL}
          >
            {t('missingToken')}
          </Typography>
        </Box>
        <ImportTokenLink />
      </Box>
      {showDetectedTokens && (
        <DetectedToken setShowDetectedTokens={setShowDetectedTokens} />
      )}
    </>
  );
};

AssetList.propTypes = {
  onClickAsset: PropTypes.func.isRequired,
};

export default AssetList;