docs/theme/components/shared/Logo/index.js

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import * as React from "react";
import { SFC } from "react";
import { useConfig } from "../../../../docz-lib/docz/dist";
import styled from "styled-components";

import { breakpoints } from "../../../styles/responsive";
import { get } from "../../../utils/theme";

const WrapperProps = {
  showBg: true,
  theme: null
};

const sidebarPrimary = get("colors.sidebarPrimary");
const primaryColor = get("colors.primary");

const Wrapper = styled.div`
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 24px;

  a,
  a:hover,
  a:visited {
    text-decoration: none;
  }

  &:before {
    position: absolute;
    content: "";
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: ${p => sidebarPrimary(p) || primaryColor(p)};
  }

  @media screen and (max-width: ${breakpoints.desktop}px) {
    &:before {
      height: ${p => (p.showBg ? "3px" : 0)};
    }
  }

  ${get("styles.logo")};
`;
Wrapper.defaultProps = WrapperProps;

const LogoImg = styled("img")`
  padding: 0;
  height: 50px;
  margin: 2px 0;
`;

const LogoText = styled("h1")`
  margin: 5px 0;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: ${get("colors.sidebarText")};
`;

const LogoProps = {
  showBg: true
};

export const Logo = ({ showBg }) => {
  const { base, title, linkComponent: Link, baseUrl } = useConfig();
  if (!Link) return null;
  return (
    <Wrapper showBg={showBg}>
      <Link to={typeof base === "string" ? base : "/"}>
        <LogoImg src={`${baseUrl}/images/atlas_logo.svg`} alt={title} />
      </Link>
    </Wrapper>
  );
};