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* Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n * @flow\n */\n\nimport Container from 'components/Container';\nimport React, { Component } from 'react';\nimport Sidebar from 'templates/components/Sidebar';\nimport { colors, media } from 'theme';\nimport ChevronSvg from 'templates/components/ChevronSvg';\n\ntype State = {\n  open: boolean,\n};\n\nlet defaultScrollTop = 0;\ntype Props = {\n  enableScrollSync?: boolean,\n  createLink: Function, // TODO: Add better flow type once we Flow-type createLink\n  defaultActiveSection: string,\n  location: Location,\n  sectionList: Array<Object>, // TODO: Add better flow type once we have the Section component\n};\n\nclass StickyResponsiveSidebar extends Component<Props, State> {\n  constructor(props: Props) {\n    super(props);\n\n    this.state = {\n      open: false,\n    };\n  }\n  _openNavMenu = () => {\n    this.setState({ open: !this.state.open });\n  };\n\n  _closeNavMenu = () => {\n    this.setState({ open: false });\n  };\n\n  componentDidMount() {\n    // 组件挂载时将defaultScrollTop赋值滚动条的scrollTop,并记录当前页面\n    let latoutNode = document.getElementById(\"navbarclass\");\n    let currentClass = location.pathname.split(\"/\")[5];\n    let activeNode = document.getElementsByClassName(currentClass);\n    if (activeNode.length > 0) {\n      activeNode[0].parentElement.parentElement.parentElement.ariaExpanded = true;\n      activeNode[0].parentElement.parentElement.parentElement.parentElement.parentElement.parentElement.ariaExpanded = true;\n    }\n    if (latoutNode) {\n      latoutNode.addEventListener(\"scroll\", e => {\n        latoutNode.scrollTop = e.target.scrollTop;\n      });\n      latoutNode.scrollTop = defaultScrollTop;\n    }\n\n  }\n\n  componentWillUnmount() {\n    // 组件卸载时移除监听事件，同时拿到defaultScrollTop \n    let latoutNode = document.getElementById(\"navbarclass\");\n    if (latoutNode) {\n      latoutNode.removeEventListener(\"scroll\", e => {\n        latoutNode.scrollTop = e.target.scrollTop;\n      });\n      defaultScrollTop = latoutNode.scrollTop;\n    }\n  }\n\n  render() {\n    const { open } = this.state;\n    const smallScreenSidebarStyles = {\n      top: 0,\n      left: 0,\n      bottom: 0,\n      right: 0,\n      position: 'fixed',\n      backgroundColor: colors.white,\n      zIndex: 2,\n      height: '100vh',\n      overflowY: 'auto',\n      WebkitOverflowScrolling: 'touch',\n      pointerEvents: open ? 'auto' : 'none',\n    };\n\n    const smallScreenBottomBarStyles = {\n      display: 'inline-block',\n    };\n\n    const iconOffset = open ? 8 : -4;\n    const menuOpacity = open ? 1 : 0;\n    const menuOffset = open ? 0 : 40;\n\n    // TODO: role and aria props for 'close' button?\n    return (\n      <div style={{ height: '100%' }}>\n        <div id=\"navbarclass\"\n          style={{\n            opacity: menuOpacity,\n            transition: 'opacity 0.5s ease',\n          }}\n          css={{\n            [media.lessThan('small')]: smallScreenSidebarStyles,\n\n            [media.greaterThan('medium')]: {\n              marginLeft: -999,\n              paddingLeft: 999,\n              backgroundColor: '#f7f7f7',\n            },\n\n            [media.between('medium', 'sidebarFixed', true)]: {\n              // position: 'fixed',\n              // zIndex: 2,\n              height: '100%',\n            },\n\n            [media.greaterThan('small')]: {\n              // position: 'fixed',\n              // zIndex: 2,\n              // height: 'calc(100vh - 60px)',\n              height: '100%',\n              overflowY: 'auto',\n              WebkitOverflowScrolling: 'touch',\n              marginLeft: -999,\n              paddingLeft: 999,\n              backgroundColor: '#f7f7f7',\n              opacity: '1 !important',\n            },\n\n            [media.size('small')]: {\n              // height: 'calc(100vh - 40px)',\n              height: '100%',\n            },\n\n            [media.between('medium', 'large')]: {\n              // height: 'calc(100vh - 50px)',\n              height: '100%',\n            },\n\n            [media.greaterThan('sidebarFixed')]: {\n              // borderRight: '1px solid #ececec',\n              height: '100%',\n            },\n          }}>\n          <div\n            style={{\n              transform: `translate(0px, ${menuOffset}px)`,\n              transition: 'transform 0.5s ease',\n            }}\n            css={{\n              marginTop: 23,\n\n              [media.size('xsmall')]: {\n                marginTop: 23,\n              },\n\n              [media.between('small', 'medium')]: {\n                marginTop: 0,\n              },\n\n              [media.between('medium', 'large')]: {\n                marginTop: 23,\n              },\n\n              [media.greaterThan('small')]: {\n                transform: 'none !important',\n              },\n            }}>\n            <Sidebar closeParentMenu={this._closeNavMenu} {...this.props} />\n          </div>\n        </div>\n        <div\n          css={{\n            backgroundColor: colors.darker,\n            bottom: 44, // iOS Safari's inert \"bottom 44px\"\n            color: colors.brand,\n            display: 'none', // gets overriden at small screen sizes\n            cursor: 'pointer',\n            position: 'fixed',\n            right: 20,\n            zIndex: 3,\n            borderRadius: '50%',\n            border: '1px solid rgba(255, 255, 255, 0.1)',\n            boxShadow: '0 0 20px rgba(0, 0, 0, 0.3)',\n            [media.lessThan('small')]: smallScreenBottomBarStyles,\n          }}\n          onClick={this._openNavMenu}\n          role=\"button\"\n          tabIndex={0}>\n          <Container>\n            <div\n              css={{\n                display: 'flex',\n                flexDirection: 'row',\n                alignItems: 'center',\n                height: 60,\n                [media.between('medium', 'large')]: {\n                  height: 50,\n                },\n                [media.lessThan('small')]: {\n                  height: 60,\n                  overflow: 'hidden',\n                  alignItems: 'flex-start',\n                },\n              }}>\n              <div\n                css={{\n                  width: 20,\n                  height: 20,\n                  alignSelf: 'center',\n                  display: 'flex',\n                  flexDirection: 'column',\n                  color: colors.brand,\n                }}>\n                <ChevronSvg\n                  size={15}\n                  cssProps={{\n                    transform: `translate(2px, ${iconOffset}px) rotate(180deg)`,\n                    transition: 'transform 0.2s ease',\n                  }}\n                />\n                <ChevronSvg\n                  size={15}\n                  cssProps={{\n                    transform: `translate(2px, ${0 - iconOffset}px)`,\n                    transition: 'transform 0.2s ease',\n                  }}\n                />\n              </div>\n            </div>\n          </Container>\n        </div>\n      </div>\n    );\n  }\n}\n\nexport default StickyResponsiveSidebar;\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n * @flow\n */\n\nimport slugify from 'utils/slugify';\n\nconst toAnchor = (href: string = ''): string => {\n  const index = href.indexOf('#');\n  return index >= 0 ? href.substr(index) : '';\n};\n\n// TODO Account for redirect_from URLs somehow; they currently won't match.\n// This comment should not be true anymore since we're using 300 redirects\n\ntype Item = {\n  id: string,\n  href: string,\n};\n\nconst isItemActive = (location: Location, item: Item, directory): boolean => {\n  if (item.href) {\n    let pathname = location.pathname;\n    let startIndex = pathname.indexOf('/zh/');\n    let endIndex = pathname.lastIndexOf('/');\n    if (startIndex == -1) {\n      startIndex = pathname.indexOf('/en/');\n      if (startIndex == -1) {\n        startIndex = 0;\n      }\n    }\n    if (endIndex != pathname.length - 1) {\n      endIndex = pathname.length;\n    }\n    const currentPath = pathname.substring(startIndex, endIndex);\n    if (currentPath === (directory + '/' + item.href)) {\n      return true;\n    }\n  } else if (item.id.includes('html')) {\n    return location.pathname.includes(item.id);\n  }\n  const pathArray = location.pathname.split('/');\n  const slugId = pathArray.slice(pathArray.length - 2)[0];\n  return slugId === slugify(item.id);\n};\n\nexport default isItemActive;\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n * @flow\n */\n\nimport Flex from 'components/Flex';\nimport React from 'react';\nimport {colors, fonts, media} from 'theme';\n\nconst MarkdownHeader = ({title}: {title: string}) => (\n  <Flex type=\"header\" halign=\"space-between\" valign=\"baseline\">\n    <h1\n      css={{\n        color: colors.dark,\n        marginBottom: 0,\n        marginTop: 40,\n        ...fonts.header,\n\n        [media.size('medium')]: {\n          marginTop: 40,\n        },\n\n        [media.greaterThan('large')]: {\n          marginTop: 40,\n        },\n      }}>\n      {title}\n    </h1>\n  </Flex>\n);\n\nexport default MarkdownHeader;\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n */\n\nimport StickyResponsiveSidebar from './StickyResponsiveSidebar';\n\nexport default StickyResponsiveSidebar;\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n * @flow\n */\n\nimport React from 'react';\n\nimport type {Node} from 'react';\n\nconst addString = (list: Array<Node>, string: string) =>\n  list.push(<span key={`${list.length}-${string}`}>{string}</span>);\n\nconst toCommaSeparatedList = (\n  array: Array<any>,\n  renderCallback: Function,\n): Array<any> => {\n  if (array.length <= 1) {\n    return array.map(renderCallback);\n  }\n\n  const list = [];\n\n  array.forEach((item, index) => {\n    if (index === array.length - 1) {\n      addString(list, array.length === 2 ? ' and ' : ', and ');\n      list.push(renderCallback(item, index));\n    } else if (index > 0) {\n      addString(list, ', ');\n      list.push(renderCallback(item, index));\n    } else {\n      list.push(renderCallback(item, index));\n    }\n  });\n\n  return list;\n};\n\nexport default toCommaSeparatedList;\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n */\n\nimport Sidebar from './Sidebar';\n\nexport default Sidebar;\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n */\n\nimport Container from 'components/Container';\nimport Flex from 'components/Flex';\nimport {Link} from 'gatsby';\nimport PropTypes from 'prop-types';\nimport React from 'react';\nimport {colors, fonts, media} from 'theme';\n\nconst NavigationFooter = ({next, prev, location}) => {\n  return (\n    <div\n      css={{\n        background: colors.dark,\n        color: colors.white,\n        paddingTop: 50,\n        paddingBottom: 50,\n      }}>\n      <Container>\n        <Flex\n          type=\"ul\"\n          halign=\"space-between\"\n          css={{\n            [media.between('small', 'medium')]: {\n              paddingRight: 240,\n            },\n\n            [media.between('large', 'largerSidebar')]: {\n              paddingRight: 280,\n            },\n\n            [media.between('largerSidebar', 'sidebarFixed', true)]: {\n              paddingRight: 380,\n            },\n          }}>\n          <Flex basis=\"50%\" type=\"li\">\n            {prev && (\n              <div>\n                <SecondaryLabel>Previous article</SecondaryLabel>\n                <div\n                  css={{\n                    paddingTop: 10,\n                  }}>\n                  <PrimaryLink location={location} to={`${prev.id}.html`}>\n                    {prev.title}\n                  </PrimaryLink>\n                </div>\n              </div>\n            )}\n          </Flex>\n          {next && (\n            <Flex\n              halign=\"flex-end\"\n              basis=\"50%\"\n              type=\"li\"\n              css={{\n                textAlign: 'right',\n              }}>\n              <div>\n                <SecondaryLabel>Next article</SecondaryLabel>\n                <div\n                  css={{\n                    paddingTop: 10,\n                  }}>\n                  <PrimaryLink location={location} to={`${next.id}.html`}>\n                    {next.title}\n                  </PrimaryLink>\n                </div>\n              </div>\n            </Flex>\n          )}\n        </Flex>\n      </Container>\n    </div>\n  );\n};\n\nNavigationFooter.propTypes = {\n  next: PropTypes.shape({\n    id: PropTypes.string.isRequired,\n    title: PropTypes.string.isRequired,\n  }),\n  prev: PropTypes.shape({\n    id: PropTypes.string.isRequired,\n    title: PropTypes.string.isRequired,\n  }),\n};\n\nexport default NavigationFooter;\n\nconst PrimaryLink = ({children, to, location}) => {\n  // quick fix\n  // TODO: replace this with better method of getting correct full url\n  const updatedUrl =\n    (location && location.pathname.replace(/\\/[^/]+\\.html/, '/' + to)) || to;\n  return (\n    <Link\n      css={{\n        display: 'inline',\n        borderColor: colors.subtle,\n        transition: 'border-color 0.2s ease',\n        fontSize: 30,\n        borderBottomWidth: 1,\n        borderBottomStyle: 'solid',\n\n        [media.lessThan('large')]: {\n          fontSize: 24,\n        },\n        [media.size('xsmall')]: {\n          fontSize: 16,\n        },\n        ':hover': {\n          borderColor: colors.white,\n        },\n      }}\n      to={updatedUrl}>\n      {children}\n    </Link>\n  );\n};\n\nconst SecondaryLabel = ({children}) => (\n  <div\n    css={{\n      color: colors.brand,\n      ...fonts.small,\n    }}>\n    {children}\n  </div>\n);\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the CC-BY-4.0 license found\n * in the LICENSE file in the root directory of this source tree.\n *\n * @emails react-core\n */\n\nimport React, {Component} from 'react';\nimport Section from './Section';\n\nclass ScrollSyncSection extends Component {\n  constructor(props, context) {\n    super(props, context);\n\n    this.state = {\n      activeItemId: '',\n      itemTopOffsets: [],\n    };\n\n    this.calculateItemTopOffsets = this.calculateItemTopOffsets.bind(this);\n    this.handleResize = this.handleResize.bind(this);\n    this.handleScroll = this.handleScroll.bind(this);\n  }\n\n  componentDidMount() {\n    this.calculateItemTopOffsets();\n\n    window.addEventListener('resize', this.handleResize);\n    window.addEventListener('scroll', this.handleScroll);\n  }\n\n  componentWillUnmount() {\n    window.removeEventListener('resize', this.handleResize);\n    window.removeEventListener('scroll', this.handleScroll);\n  }\n\n  calculateItemTopOffsets() {\n    const {section} = this.props;\n\n    const itemIds = _getItemIds(section.items);\n    this.setState({\n      itemTopOffsets: _getElementTopOffsetsById(itemIds),\n    });\n  }\n\n  handleResize() {\n    this.calculateItemTopOffsets();\n    this.handleScroll();\n  }\n\n  handleScroll() {\n    const {itemTopOffsets} = this.state;\n    const item = itemTopOffsets.find((itemTopOffset, i) => {\n      const nextItemTopOffset = itemTopOffsets[i + 1];\n      if (nextItemTopOffset) {\n        return (\n          window.scrollY >= itemTopOffset.offsetTop &&\n          window.scrollY < nextItemTopOffset.offsetTop\n        );\n      }\n      return window.scrollY >= itemTopOffset.offsetTop;\n    });\n    this.setState({\n      activeItemId: item ? item.id : '',\n    });\n  }\n\n  render() {\n    const {activeItemId} = this.state;\n    return <Section isScrollSync activeItemId={activeItemId} {...this.props} />;\n  }\n}\n\nconst _getItemIds = items =>\n  items\n    .map(item => {\n      let subItemIds = [];\n      if (item.subitems) {\n        subItemIds = item.subitems.map(subitem => subitem.id);\n      }\n      return [item.id, ...subItemIds];\n    })\n    .reduce((prev, current) => prev.concat(current));\n\nconst _getElementTopOffsetsById = ids =>\n  ids\n    .map(id => {\n      const element = document.getElementById(id);\n      if (!element) {\n        return null;\n      }\n      return {\n        id,\n        offsetTop: element.offsetTop,\n      };\n    })\n    .filter(item => item);\n\nexport default ScrollSyncSection;\n","require(\"core-js/modules/es6.regexp.constructor\");\n\nrequire(\"core-js/modules/es6.regexp.split\");\n\nrequire(\"core-js/modules/es6.array.reduce\");\n\nrequire(\"core-js/modules/es6.string.trim\");\n\nrequire(\"core-js/modules/es6.regexp.replace\");\n\n;\n\n(function (name, root, factory) {\n  if (typeof exports === 'object') {\n    module.exports = factory();\n    module.exports['default'] = factory();\n  }\n  /* istanbul ignore next */\n  else if (typeof define === 'function' && define.amd) {\n      define(factory);\n    } else {\n      root[name] = factory();\n    }\n})('slugify', this, function () {\n  var charMap = JSON.parse('{\"$\":\"dollar\",\"%\":\"percent\",\"&\":\"and\",\"<\":\"less\",\">\":\"greater\",\"|\":\"or\",\"¢\":\"cent\",\"£\":\"pound\",\"¤\":\"currency\",\"¥\":\"yen\",\"©\":\"(c)\",\"ª\":\"a\",\"®\":\"(r)\",\"º\":\"o\",\"À\":\"A\",\"Á\":\"A\",\"Â\":\"A\",\"Ã\":\"A\",\"Ä\":\"A\",\"Å\":\"A\",\"Æ\":\"AE\",\"Ç\":\"C\",\"È\":\"E\",\"É\":\"E\",\"Ê\":\"E\",\"Ë\":\"E\",\"Ì\":\"I\",\"Í\":\"I\",\"Î\":\"I\",\"Ï\":\"I\",\"Ð\":\"D\",\"Ñ\":\"N\",\"Ò\":\"O\",\"Ó\":\"O\",\"Ô\":\"O\",\"Õ\":\"O\",\"Ö\":\"O\",\"Ø\":\"O\",\"Ù\":\"U\",\"Ú\":\"U\",\"Û\":\"U\",\"Ü\":\"U\",\"Ý\":\"Y\",\"Þ\":\"TH\",\"ß\":\"ss\",\"à\":\"a\",\"á\":\"a\",\"â\":\"a\",\"ã\":\"a\",\"ä\":\"a\",\"å\":\"a\",\"æ\":\"ae\",\"ç\":\"c\",\"è\":\"e\",\"é\":\"e\",\"ê\":\"e\",\"ë\":\"e\",\"ì\":\"i\",\"í\":\"i\",\"î\":\"i\",\"ï\":\"i\",\"ð\":\"d\",\"ñ\":\"n\",\"ò\":\"o\",\"ó\":\"o\",\"ô\":\"o\",\"õ\":\"o\",\"ö\":\"o\",\"ø\":\"o\",\"ù\":\"u\",\"ú\":\"u\",\"û\":\"u\",\"ü\":\"u\",\"ý\":\"y\",\"þ\":\"th\",\"ÿ\":\"y\",\"Ā\":\"A\",\"ā\":\"a\",\"Ă\":\"A\",\"ă\":\"a\",\"Ą\":\"A\",\"ą\":\"a\",\"Ć\":\"C\",\"ć\":\"c\",\"Č\":\"C\",\"č\":\"c\",\"Ď\":\"D\",\"ď\":\"d\",\"Đ\":\"DJ\",\"đ\":\"dj\",\"Ē\":\"E\",\"ē\":\"e\",\"Ė\":\"E\",\"ė\":\"e\",\"Ę\":\"e\",\"ę\":\"e\",\"Ě\":\"E\",\"ě\":\"e\",\"Ğ\":\"G\",\"ğ\":\"g\",\"Ģ\":\"G\",\"ģ\":\"g\",\"Ĩ\":\"I\",\"ĩ\":\"i\",\"Ī\":\"i\",\"ī\":\"i\",\"Į\":\"I\",\"į\":\"i\",\"İ\":\"I\",\"ı\":\"i\",\"Ķ\":\"k\",\"ķ\":\"k\",\"Ļ\":\"L\",\"ļ\":\"l\",\"Ľ\":\"L\",\"ľ\":\"l\",\"Ł\":\"L\",\"ł\":\"l\",\"Ń\":\"N\",\"ń\":\"n\",\"Ņ\":\"N\",\"ņ\":\"n\",\"Ň\":\"N\",\"ň\":\"n\",\"Ő\":\"O\",\"ő\":\"o\",\"Œ\":\"OE\",\"œ\":\"oe\",\"Ŕ\":\"R\",\"ŕ\":\"r\",\"Ř\":\"R\",\"ř\":\"r\",\"Ś\":\"S\",\"ś\":\"s\",\"Ş\":\"S\",\"ş\":\"s\",\"Š\":\"S\",\"š\":\"s\",\"Ţ\":\"T\",\"ţ\":\"t\",\"Ť\":\"T\",\"ť\":\"t\",\"Ũ\":\"U\",\"ũ\":\"u\",\"Ū\":\"u\",\"ū\":\"u\",\"Ů\":\"U\",\"ů\":\"u\",\"Ű\":\"U\",\"ű\":\"u\",\"Ų\":\"U\",\"ų\":\"u\",\"Ŵ\":\"W\",\"ŵ\":\"w\",\"Ŷ\":\"Y\",\"ŷ\":\"y\",\"Ÿ\":\"Y\",\"Ź\":\"Z\",\"ź\":\"z\",\"Ż\":\"Z\",\"ż\":\"z\",\"Ž\":\"Z\",\"ž\":\"z\",\"ƒ\":\"f\",\"Ơ\":\"O\",\"ơ\":\"o\",\"Ư\":\"U\",\"ư\":\"u\",\"Lj\":\"LJ\",\"lj\":\"lj\",\"Nj\":\"NJ\",\"nj\":\"nj\",\"Ș\":\"S\",\"ș\":\"s\",\"Ț\":\"T\",\"ț\":\"t\",\"˚\":\"o\",\"Ά\":\"A\",\"Έ\":\"E\",\"Ή\":\"H\",\"Ί\":\"I\",\"Ό\":\"O\",\"Ύ\":\"Y\",\"Ώ\":\"W\",\"ΐ\":\"i\",\"Α\":\"A\",\"Β\":\"B\",\"Γ\":\"G\",\"Δ\":\"D\",\"Ε\":\"E\",\"Ζ\":\"Z\",\"Η\":\"H\",\"Θ\":\"8\",\"Ι\":\"I\",\"Κ\":\"K\",\"Λ\":\"L\",\"Μ\":\"M\",\"Ν\":\"N\",\"Ξ\":\"3\",\"Ο\":\"O\",\"Π\":\"P\",\"Ρ\":\"R\",\"Σ\":\"S\",\"Τ\":\"T\",\"Υ\":\"Y\",\"Φ\":\"F\",\"Χ\":\"X\",\"Ψ\":\"PS\",\"Ω\":\"W\",\"Ϊ\":\"I\",\"Ϋ\":\"Y\",\"ά\":\"a\",\"έ\":\"e\",\"ή\":\"h\",\"ί\":\"i\",\"ΰ\":\"y\",\"α\":\"a\",\"β\":\"b\",\"γ\":\"g\",\"δ\":\"d\",\"ε\":\"e\",\"ζ\":\"z\",\"η\":\"h\",\"θ\":\"8\",\"ι\":\"i\",\"κ\":\"k\",\"λ\":\"l\",\"μ\":\"m\",\"ν\":\"n\",\"ξ\":\"3\",\"ο\":\"o\",\"π\":\"p\",\"ρ\":\"r\",\"ς\":\"s\",\"σ\":\"s\",\"τ\":\"t\",\"υ\":\"y\",\"φ\":\"f\",\"χ\":\"x\",\"ψ\":\"ps\",\"ω\":\"w\",\"ϊ\":\"i\",\"ϋ\":\"y\",\"ό\":\"o\",\"ύ\":\"y\",\"ώ\":\"w\",\"Ё\":\"Yo\",\"Ђ\":\"DJ\",\"Є\":\"Ye\",\"І\":\"I\",\"Ї\":\"Yi\",\"Ј\":\"J\",\"Љ\":\"LJ\",\"Њ\":\"NJ\",\"Ћ\":\"C\",\"Џ\":\"DZ\",\"А\":\"A\",\"Б\":\"B\",\"В\":\"V\",\"Г\":\"G\",\"Д\":\"D\",\"Е\":\"E\",\"Ж\":\"Zh\",\"З\":\"Z\",\"И\":\"I\",\"Й\":\"J\",\"К\":\"K\",\"Л\":\"L\",\"М\":\"M\",\"Н\":\"N\",\"О\":\"O\",\"П\":\"P\",\"Р\":\"R\",\"С\":\"S\",\"Т\":\"T\",\"У\":\"U\",\"Ф\":\"F\",\"Х\":\"H\",\"Ц\":\"C\",\"Ч\":\"Ch\",\"Ш\":\"Sh\",\"Щ\":\"Sh\",\"Ъ\":\"U\",\"Ы\":\"Y\",\"Ь\":\"\",\"Э\":\"E\",\"Ю\":\"Yu\",\"Я\":\"Ya\",\"а\":\"a\",\"б\":\"b\",\"в\":\"v\",\"г\":\"g\",\"д\":\"d\",\"е\":\"e\",\"ж\":\"zh\",\"з\":\"z\",\"и\":\"i\",\"й\":\"j\",\"к\":\"k\",\"л\":\"l\",\"м\":\"m\",\"н\":\"n\",\"о\":\"o\",\"п\":\"p\",\"р\":\"r\",\"с\":\"s\",\"т\":\"t\",\"у\":\"u\",\"ф\":\"f\",\"х\":\"h\",\"ц\":\"c\",\"ч\":\"ch\",\"ш\":\"sh\",\"щ\":\"sh\",\"ъ\":\"u\",\"ы\":\"y\",\"ь\":\"\",\"э\":\"e\",\"ю\":\"yu\",\"я\":\"ya\",\"ё\":\"yo\",\"ђ\":\"dj\",\"є\":\"ye\",\"і\":\"i\",\"ї\":\"yi\",\"ј\":\"j\",\"љ\":\"lj\",\"њ\":\"nj\",\"ћ\":\"c\",\"ѝ\":\"u\",\"џ\":\"dz\",\"Ґ\":\"G\",\"ґ\":\"g\",\"Ғ\":\"GH\",\"ғ\":\"gh\",\"Қ\":\"KH\",\"қ\":\"kh\",\"Ң\":\"NG\",\"ң\":\"ng\",\"Ү\":\"UE\",\"ү\":\"ue\",\"Ұ\":\"U\",\"ұ\":\"u\",\"Һ\":\"H\",\"һ\":\"h\",\"Ә\":\"AE\",\"ә\":\"ae\",\"Ө\":\"OE\",\"ө\":\"oe\",\"฿\":\"baht\",\"ა\":\"a\",\"ბ\":\"b\",\"გ\":\"g\",\"დ\":\"d\",\"ე\":\"e\",\"ვ\":\"v\",\"ზ\":\"z\",\"თ\":\"t\",\"ი\":\"i\",\"კ\":\"k\",\"ლ\":\"l\",\"მ\":\"m\",\"ნ\":\"n\",\"ო\":\"o\",\"პ\":\"p\",\"ჟ\":\"zh\",\"რ\":\"r\",\"ს\":\"s\",\"ტ\":\"t\",\"უ\":\"u\",\"ფ\":\"f\",\"ქ\":\"k\",\"ღ\":\"gh\",\"ყ\":\"q\",\"შ\":\"sh\",\"ჩ\":\"ch\",\"ც\":\"ts\",\"ძ\":\"dz\",\"წ\":\"ts\",\"ჭ\":\"ch\",\"ხ\":\"kh\",\"ჯ\":\"j\",\"ჰ\":\"h\",\"Ẁ\":\"W\",\"ẁ\":\"w\",\"Ẃ\":\"W\",\"ẃ\":\"w\",\"Ẅ\":\"W\",\"ẅ\":\"w\",\"ẞ\":\"SS\",\"Ạ\":\"A\",\"ạ\":\"a\",\"Ả\":\"A\",\"ả\":\"a\",\"Ấ\":\"A\",\"ấ\":\"a\",\"Ầ\":\"A\",\"ầ\":\"a\",\"Ẩ\":\"A\",\"ẩ\":\"a\",\"Ẫ\":\"A\",\"ẫ\":\"a\",\"Ậ\":\"A\",\"ậ\":\"a\",\"Ắ\":\"A\",\"ắ\":\"a\",\"Ằ\":\"A\",\"ằ\":\"a\",\"Ẳ\":\"A\",\"ẳ\":\"a\",\"Ẵ\":\"A\",\"ẵ\":\"a\",\"Ặ\":\"A\",\"ặ\":\"a\",\"Ẹ\":\"E\",\"ẹ\":\"e\",\"Ẻ\":\"E\",\"ẻ\":\"e\",\"Ẽ\":\"E\",\"ẽ\":\"e\",\"Ế\":\"E\",\"ế\":\"e\",\"Ề\":\"E\",\"ề\":\"e\",\"Ể\":\"E\",\"ể\":\"e\",\"Ễ\":\"E\",\"ễ\":\"e\",\"Ệ\":\"E\",\"ệ\":\"e\",\"Ỉ\":\"I\",\"ỉ\":\"i\",\"Ị\":\"I\",\"ị\":\"i\",\"Ọ\":\"O\",\"ọ\":\"o\",\"Ỏ\":\"O\",\"ỏ\":\"o\",\"Ố\":\"O\",\"ố\":\"o\",\"Ồ\":\"O\",\"ồ\":\"o\",\"Ổ\":\"O\",\"ổ\":\"o\",\"Ỗ\":\"O\",\"ỗ\":\"o\",\"Ộ\":\"O\",\"ộ\":\"o\",\"Ớ\":\"O\",\"ớ\":\"o\",\"Ờ\":\"O\",\"ờ\":\"o\",\"Ở\":\"O\",\"ở\":\"o\",\"Ỡ\":\"O\",\"ỡ\":\"o\",\"Ợ\":\"O\",\"ợ\":\"o\",\"Ụ\":\"U\",\"ụ\":\"u\",\"Ủ\":\"U\",\"ủ\":\"u\",\"Ứ\":\"U\",\"ứ\":\"u\",\"Ừ\":\"U\",\"ừ\":\"u\",\"Ử\":\"U\",\"ử\":\"u\",\"Ữ\":\"U\",\"ữ\":\"u\",\"Ự\":\"U\",\"ự\":\"u\",\"Ỳ\":\"Y\",\"ỳ\":\"y\",\"Ỵ\":\"Y\",\"ỵ\":\"y\",\"Ỷ\":\"Y\",\"ỷ\":\"y\",\"Ỹ\":\"Y\",\"ỹ\":\"y\",\"‘\":\"\\'\",\"’\":\"\\'\",\"“\":\"\\\\\\\"\",\"”\":\"\\\\\\\"\",\"†\":\"+\",\"•\":\"*\",\"…\":\"...\",\"₠\":\"ecu\",\"₢\":\"cruzeiro\",\"₣\":\"french franc\",\"₤\":\"lira\",\"₥\":\"mill\",\"₦\":\"naira\",\"₧\":\"peseta\",\"₨\":\"rupee\",\"₩\":\"won\",\"₪\":\"new shequel\",\"₫\":\"dong\",\"€\":\"euro\",\"₭\":\"kip\",\"₮\":\"tugrik\",\"₯\":\"drachma\",\"₰\":\"penny\",\"₱\":\"peso\",\"₲\":\"guarani\",\"₳\":\"austral\",\"₴\":\"hryvnia\",\"₵\":\"cedi\",\"₸\":\"kazakhstani tenge\",\"₹\":\"indian rupee\",\"₽\":\"russian ruble\",\"₿\":\"bitcoin\",\"℠\":\"sm\",\"™\":\"tm\",\"∂\":\"d\",\"∆\":\"delta\",\"∑\":\"sum\",\"∞\":\"infinity\",\"♥\":\"love\",\"元\":\"yuan\",\"円\":\"yen\",\"﷼\":\"rial\"}');\n  var locales = JSON.parse('{\"vi\":{\"Đ\":\"D\",\"đ\":\"d\"}}');\n\n  function replace(string, options) {\n    if (typeof string !== 'string') {\n      throw new Error('slugify: string argument expected');\n    }\n\n    options = typeof options === 'string' ? {\n      replacement: options\n    } : options || {};\n    var locale = locales[options.locale] || {};\n    var replacement = options.replacement || '-';\n    var slug = string.split('') // replace characters based on charMap\n    .reduce(function (result, ch) {\n      return result + (locale[ch] || charMap[ch] || ch);\n    }, '') // remove not allowed characters\n    .replace(options.remove || /[^\\w\\s$*_+~.()'\"!\\-:@]+/g, '') // trim leading/trailing spaces\n    .trim() // convert spaces to replacement character\n    // also remove duplicates of the replacement character\n    .replace(new RegExp('[\\\\s' + replacement + ']+', 'g'), replacement);\n\n    if (options.lower) {\n      slug = slug.toLowerCase();\n    }\n\n    if (options.strict) {\n      // remove anything besides letters, numbers, and the replacement char\n      slug = slug.replace(new RegExp('[^a-zA-Z0-9' + replacement + ']', 'g'), '');\n    }\n\n    return slug;\n  }\n\n  replace.extend = function (customMap) {\n    for (var key in customMap) {\n      charMap[key] = customMap[key];\n    }\n  };\n\n  return replace;\n});","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n * @flow\n */\n\nimport { Link } from 'gatsby';\nimport React from 'react';\nimport ExternalLinkSvg from 'templates/components/ExternalLinkSvg';\nimport slugify from 'utils/slugify';\nimport { colors, media } from 'theme';\n\nimport type { Node } from 'react';\n\ntype CreateLinkBaseProps = {\n  isActive: boolean,\n  item: Object,\n  section: Object,\n};\n\nconst createLinkBlog = ({\n  isActive,\n  item,\n  section,\n}: CreateLinkBaseProps): Node => {\n  if (item.href) {\n    return (\n      <a css={[linkCss]} href={item.href}>\n        {item.title}\n      </a>\n    );\n  }\n  return (\n    <Link css={[linkCss, isActive && activeLinkCss]} to={item.id}>\n      {isActive && <span css={activeLinkBefore} />}\n      {item.title}\n    </Link>\n  );\n};\n\nconst createLinkCommunity = ({\n  isActive,\n  item,\n  section,\n}: CreateLinkBaseProps): Node => {\n  if (item.href) {\n    return (\n      <a css={[linkCss]} href={item.href} target=\"_blank\" rel=\"noopener\">\n        {item.title}\n        <ExternalLinkSvg\n          cssProps={{\n            verticalAlign: -2,\n            display: 'inline-block',\n            marginLeft: 5,\n            color: colors.subtle,\n          }}\n        />\n      </a>\n    );\n  }\n  return createLinkDocs({\n    isActive,\n    item,\n    section,\n  });\n};\n\nconst createLinkDocs = ({\n  isActive,\n  item,\n  section,\n}: CreateLinkBaseProps): Node => {\n  let href = item.href ? section.directory + '/' + item.href : slugify(item.id, section.directory);\n  return (\n    <Link\n      css={[linkCss, isActive && activeLinkCss]}\n      to={href}>\n      {isActive && <span css={activeLinkBefore} />}\n      {item.title}\n    </Link>\n  );\n};\n\ntype CreateLinkTutorialProps = {\n  onLinkClick: Function,\n} & CreateLinkBaseProps;\n\nconst createLinkTutorial = ({\n  isActive,\n  item,\n  onLinkClick,\n  section,\n}: CreateLinkTutorialProps): Node => {\n  let href = item.href ? section.directory + '/' + item.href : slugify(item.id, section.directory);\n  return (\n    <Link\n      css={[linkCss, isActive && activeLinkCss]}\n      onClick={onLinkClick}\n      to={href}>\n      {isActive && <span css={activeLinkBefore} />}\n      {item.title}\n    </Link>\n  );\n};\n\nconst createLinkMicroservices = ({\n  isActive,\n  item,\n  section,\n}: CreateLinkBaseProps): Node => {\n  let href = item.href ? section.directory + '/' + item.href : slugify(item.id, section.directory);\n  return (\n    <Link\n      css={[linkCss, isActive && activeLinkCss]}\n      to={href}>\n      {isActive && <span css={activeLinkBefore} />}\n      {item.title}\n    </Link>\n  );\n};\n\nconst createLinkTerms = ({\n  isActive,\n  item,\n  section,\n}: CreateLinkBaseProps): Node => {\n  if (item.href) {\n    return (\n      <a css={[linkCss]} href={item.href}>\n        {item.title}\n      </a>\n    );\n  }\n  return createLinkDocs({\n    isActive,\n    item,\n    section,\n  });\n};\n\nconst createLinkapi = ({\n  isActive,\n  item,\n  section,\n}: CreateLinkBaseProps): Node => {\n  let href = item.href ? section.directory + '/' + item.href : slugify(item.id, section.directory);\n  return (\n    <Link\n      css={[linkCss, isActive && activeLinkCss]}\n      to={href}>\n      {isActive && <span css={activeLinkBefore} />}\n      {item.title}\n    </Link>\n  );\n};\n\nconst activeLinkCss = {\n  fontWeight: 700,\n  color: colors.linkblue,\n};\n\nconst activeLinkBefore = {\n  width: 4,\n  height: 25,\n  borderLeft: `4px solid ${colors.linkblue}`,\n  paddingLeft: 16,\n  position: 'absolute',\n  left: -15,\n};\n\nconst linkCss = {\n  color: colors.text,\n  display: 'inline-block',\n  borderBottom: '1px solid transparent',\n  transition: 'border 0.2s ease',\n  fontSize: '16px', //定义侧目录二级标题的字体\n  fontweight: 700,\n\n  '&:hover': {\n    color: colors.linkblue,\n  },\n};\n\nexport {\n  createLinkBlog,\n  createLinkCommunity,\n  createLinkDocs,\n  createLinkTutorial,\n  createLinkMicroservices,\n  createLinkTerms,\n  createLinkapi,\n};\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n */\n\nimport MarkdownPage from 'components/MarkdownPage';\nimport PropTypes from 'prop-types';\nimport React from 'react';\nimport {graphql} from 'gatsby';\nimport Layout from 'components/Layout';\nimport {createLinkDocs} from 'utils/createLink';\nimport {sectionListGuides_en, sectionListGuides_zh} from 'utils/sectionList';\n\nconst Guides = ({data, location}) => {\n  let sectionListDocs = sectionListGuides_en;\n  if (data.markdownRemark.fields.langKey === 'zh') {\n    sectionListDocs = sectionListGuides_zh;\n  }\n  console.log('guides data');\n  console.log(data.markdownRemark);\n  return (\n    <Layout location={location}>\n      <MarkdownPage\n        createLink={createLinkDocs}\n        location={location}\n        markdownRemark={data.markdownRemark}\n        sectionList={sectionListDocs}\n        //titlePostfix=\" &ndash; SuperMap\" //控制页面在浏览器中的标题\n      />\n    </Layout>\n  );\n};\n\nGuides.propTypes = {\n  data: PropTypes.object.isRequired,\n};\n\nexport const pageQuery = graphql`\n  query TemplateGuidesMarkdown($slug: String!) {\n    markdownRemark(fields: {slug: {eq: $slug}}) {\n      html\n      frontmatter {\n        title\n        next\n        prev\n      }\n      fields {\n        path\n        slug\n        langKey\n      }\n    }\n  }\n`;\n\nexport default Guides;\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n * @flow\n */\n\nimport React from 'react';\n\ntype Props = {\n  size: number,\n  cssProps: Object,\n};\n\nconst ChevronSvg = ({size = 10, cssProps = {}}: Props) => (\n  <svg\n    css={cssProps}\n    viewBox=\"0 0 926.23699 573.74994\"\n    version=\"1.1\"\n    x=\"0px\"\n    y=\"0px\"\n    width={size}\n    height={size}>\n    <g transform=\"translate(904.92214,-879.1482)\">\n      <path\n        d={`\n          m -673.67664,1221.6502 -231.2455,-231.24803 55.6165,\n          -55.627 c 30.5891,-30.59485 56.1806,-55.627 56.8701,-55.627 0.6894,\n          0 79.8637,78.60862 175.9427,174.68583 l 174.6892,174.6858 174.6892,\n          -174.6858 c 96.079,-96.07721 175.253196,-174.68583 175.942696,\n          -174.68583 0.6895,0 26.281,25.03215 56.8701,\n          55.627 l 55.6165,55.627 -231.245496,231.24803 c -127.185,127.1864\n          -231.5279,231.248 -231.873,231.248 -0.3451,0 -104.688,\n          -104.0616 -231.873,-231.248 z\n        `}\n        fill=\"currentColor\"\n      />\n    </g>\n  </svg>\n);\n\nexport default ChevronSvg;\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n * @flow\n */\n\nimport Container from 'components/Container';\nimport Flex from 'components/Flex';\nimport MarkdownHeader from 'components/MarkdownHeader';\nimport NavigationFooter from 'templates/components/NavigationFooter';\nimport React from 'react';\nimport StickyResponsiveSidebar from 'components/StickyResponsiveSidebar';\nimport TitleAndMetaTags from 'components/TitleAndMetaTags';\nimport findSectionForPath from 'utils/findSectionForPath';\nimport toCommaSeparatedList from 'utils/toCommaSeparatedList';\nimport {sharedStyles} from 'theme';\nimport createOgUrl from 'utils/createOgUrl';\nimport TOC from 'components/TOC.js';\n\nimport DownloadPDF from './DownloadPDF';\nimport type {Node} from 'types';\n\ntype Props = {\n  authors: Array<string>,\n  createLink: Function, // TODO: Add better flow type once we Flow-type createLink\n  date?: string,\n  enableScrollSync?: boolean,\n  ogDescription: string,\n  location: Location,\n  markdownRemark: Node,\n  sectionList: Array<Object>, // TODO: Add better flow type once we have the Section component\n  titlePostfix: string,\n  hasCurTOC: Boolean,\n};\n\n// const getPageById = (sectionList: Array<Object>, templateFile: ?string) => {\n//   if (!templateFile) {\n//     return null;\n//   }\n\n//   const sectionItems = sectionList.map(section => section.items);\n//   const flattenedSectionItems = [].concat.apply([], sectionItems);\n//   const linkId = templateFile.replace('.html', '');\n\n//   return flattenedSectionItems.find(item => item.id === linkId);\n// };\n\nconst MarkdownPage = ({\n  authors = [],\n  createLink,\n  date,\n  enableScrollSync,\n  ogDescription,\n  location,\n  markdownRemark,\n  sectionList,\n  titlePostfix = '-SuperMap',\n  hasCurTOC = true,\n}: Props) => {\n  const hasAuthors = authors.length > 0;\n  const titlePrefix = markdownRemark.frontmatter.title || '';\n\n  // const prev = getPageById(sectionList, markdownRemark.frontmatter.prev);\n  // const next = getPageById(sectionList, markdownRemark.frontmatter.next);\n  // console.log(markdownRemark.html);\n\n  return (\n    <Flex\n      direction=\"column\"\n      grow=\"1\"\n      shrink=\"0\"\n      halign=\"stretch\"\n      css={{\n        width: '100%',\n        flex: '1 0 auto',\n        position: 'relative',\n        zIndex: 0,\n      }}>\n      <TitleAndMetaTags\n        ogDescription={ogDescription}\n        ogUrl={createOgUrl(markdownRemark.fields.slug)}\n        //title={`${titlePrefix}${titlePostfix}`}  //浏览器标题中带有SuperMap后缀\n        title={`${titlePrefix}`}\n      />\n      <div css={{\n        flex: '1 0 auto',\n        backgroundColor: '#f7f7f7',\n      }}>\n        <Container>\n          <div css={sharedStyles.articleLayout.container}>\n          <div css={sharedStyles.articleLayout.sidebar}>\n              <StickyResponsiveSidebar\n                enableScrollSync={enableScrollSync}\n                createLink={createLink}\n                defaultActiveSection={findSectionForPath(\n                  location.pathname,\n                  sectionList,\n                )}\n                location={location}\n                sectionList={sectionList}\n              />\n            </div>\n            <Flex type=\"article\" direction=\"column\" grow=\"1\" halign=\"stretch\" css={sharedStyles.articleLayout.article}>\n              <MarkdownHeader title={titlePrefix} />\n\n              {(date || hasAuthors) && (\n                <div css={{marginTop: 15}}>\n                  {date}{' '}\n                  {hasAuthors && (\n                    <span>\n                      by{' '}\n                      {toCommaSeparatedList(authors, author => (\n                        <a\n                          css={sharedStyles.link}\n                          href={author.frontmatter.url}\n                          key={author.frontmatter.name}>\n                          {author.frontmatter.name}\n                        </a>\n                      ))}\n                    </span>\n                  )}\n                </div>\n              )}\n\n              <div css={sharedStyles.articleLayout.content}>\n              {/* <DownloadPDF title=\"Download\" markdownTitle={titlePrefix}/> */}\n                <div id=\"article_Content\"\n                  css={[sharedStyles.markdown]}\n                  dangerouslySetInnerHTML={{__html: markdownRemark.html}}\n                />\n\n                {markdownRemark.fields.path && (\n                  <div css={{marginTop: 80}}>\n                    <a\n                      css={sharedStyles.articleLayout.editLink}\n                      href={`https://github.com/reactjs/reactjs.org/tree/master/${\n                        markdownRemark.fields.path\n                      }`}>\n                      {/* Edit this page // 注释掉编辑此页的内容 */}\n                    </a>\n                  </div>\n                )}\n              </div>\n            </Flex>\n            {hasCurTOC? <div css={sharedStyles.articleLayout.curPageTOC}>\n              <TOC/>\n            </div>:null}\n            \n          </div>\n        </Container>\n      </div>\n\n      {/* {(next || prev) && (\n        <NavigationFooter location={location} next={next} prev={prev} />\n      )} */}\n    </Flex>\n  );\n};\n\nexport default MarkdownPage;\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n * @flow\n */\n\nimport slugify from './slugify';\n\n/**\n * Helper method to locate the section containing the current URL/path.\n * This method specifically works with the nav_*.yml format.\n */\n\ntype Item = {\n  id: string,\n  subitems: Array<Item>,\n};\n\ntype Section = {\n  items: Array<Item>,\n};\n\nconst findSectionForPath = (\n  pathname: string,\n  sections: Array<Section>,\n): Section | void => {\n  let activeSection;\n  const pathArray = pathname.split('/');\n  const index = pathArray.length - 2;\n  const slugId = pathArray.slice(index)[0];\n\n  let startIndex = pathname.indexOf('/zh/');\n  let endIndex = pathname.lastIndexOf('/');\n  if (startIndex == -1) {\n    startIndex = pathname.indexOf('/en/');\n    if (startIndex == -1) {\n      startIndex = 0;\n    }\n  }\n  if (endIndex != pathname.length - 1) {\n    endIndex = pathname.length;\n  }\n  const currentPath = pathname.substring(startIndex, endIndex);\n\n  function hasMatch(items, directory) {\n    return items.some(\n      item => (item.href && currentPath === (directory + '/' + item.href)) || slugId === slugify(item.id) ||\n        (item.subitems && hasMatch(item.subitems, directory))\n    );\n  };\n\n  sections.forEach(section => {\n    const match = hasMatch(section.items, section.directory);\n    if (match) {\n      activeSection = section;\n    }\n  });\n\n  return activeSection;\n};\n\nexport default findSectionForPath;\n","module.exports = {\n  // Where to render the table of contents.\n  tocSelector: '.js-toc',\n  // Where to grab the headings to build the table of contents.\n  contentSelector: '.js-toc-content',\n  // Which headings to grab inside of the contentSelector element.\n  headingSelector: 'h1, h2, h3',\n  // Headings that match the ignoreSelector will be skipped.\n  ignoreSelector: '.js-toc-ignore',\n  // For headings inside relative or absolute positioned containers within content\n  hasInnerContainers: false,\n  // Main class to add to links.\n  linkClass: 'toc-link',\n  // Extra classes to add to links.\n  extraLinkClasses: '',\n  // Class to add to active links,\n  // the link corresponding to the top most heading on the page.\n  activeLinkClass: 'is-active-link',\n  // Main class to add to lists.\n  listClass: 'toc-list',\n  // Extra classes to add to lists.\n  extraListClasses: '',\n  // Class that gets added when a list should be collapsed.\n  isCollapsedClass: 'is-collapsed',\n  // Class that gets added when a list should be able\n  // to be collapsed but isn't necessarily collapsed.\n  collapsibleClass: 'is-collapsible',\n  // Class to add to list items.\n  listItemClass: 'toc-list-item',\n  // Class to add to active list items.\n  activeListItemClass: 'is-active-li',\n  // How many heading levels should not be collapsed.\n  // For example, number 6 will show everything since\n  // there are only 6 heading levels and number 0 will collapse them all.\n  // The sections that are hidden will open\n  // and close as you scroll to headings within them.\n  collapseDepth: 0,\n  // Smooth scrolling enabled.\n  scrollSmooth: true,\n  // Smooth scroll duration.\n  scrollSmoothDuration: 420,\n  // Smooth scroll offset.\n  scrollSmoothOffset: 0,\n  // Callback for scroll end.\n  scrollEndCallback: function scrollEndCallback(e) {},\n  // Headings offset between the headings and the top of the document (this is meant for minor adjustments).\n  headingsOffset: 1,\n  // Timeout between events firing to make sure it's\n  // not too rapid (for performance reasons).\n  throttleTimeout: 50,\n  // Element to add the positionFixedClass to.\n  positionFixedSelector: null,\n  // Fixed position class to add to make sidebar fixed after scrolling\n  // down past the fixedSidebarOffset.\n  positionFixedClass: 'is-position-fixed',\n  // fixedSidebarOffset can be any number but by default is set\n  // to auto which sets the fixedSidebarOffset to the sidebar\n  // element's offsetTop from the top of the document on init.\n  fixedSidebarOffset: 'auto',\n  // includeHtml can be set to true to include the HTML markup from the\n  // heading node instead of just including the textContent.\n  includeHtml: false,\n  // onclick function to apply to all links in toc. will be called with\n  // the event as the first parameter, and this can be used to stop,\n  // propagation, prevent default or perform action\n  onClick: false,\n  // orderedList can be set to false to generate unordered lists (ul)\n  // instead of ordered lists (ol)\n  orderedList: true,\n  // If there is a fixed article scroll container, set to calculate titles' offset\n  scrollContainer: null,\n  // prevent ToC DOM rendering if it's already rendered by an external system\n  skipRendering: false,\n  // Optional callback to change heading labels.\n  // For example it can be used to cut down and put ellipses on multiline headings you deem too long.\n  // Called each time a heading is parsed. Expects a string in return, the modified label to display.\n  // function (string) => string\n  headingLabelCallback: false,\n  // ignore headings that are hidden in DOM\n  ignoreHiddenElements: false,\n  // Optional callback to modify properties of parsed headings.\n  // The heading element is passed in node parameter and information parsed by default parser is provided in obj parameter.\n  // Function has to return the same or modified obj.\n  // The heading will be excluded from TOC if nothing is returned.\n  // function (object, HTMLElement) => object | void\n  headingObjectCallback: null\n};","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n */\n\nimport MarkdownHeader from './MarkdownHeader';\n\nexport default MarkdownHeader;\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n * @flow\n */\n\nimport {urlRoot} from 'site-constants';\n\nexport default (slug: string): string | null =>\n  slug == null ? null : `${urlRoot}/${slug.replace(/^\\//, '')}`;\n","/**\n * Tocbot\n * Tocbot creates a toble of contents based on HTML headings on a page,\n * this allows users to easily jump to different sections of the document.\n * Tocbot was inspired by tocify (http://gregfranko.com/jquery.tocify.js/).\n * The main differences are that it works natively without any need for jquery or jquery UI).\n *\n * @author Tim Scanlin\n */\n\n/* globals define */\n(function (root, factory) {\n  if (typeof define === 'function' && define.amd) {\n    define([], factory(root));\n  } else if (typeof exports === 'object') {\n    module.exports = factory(root);\n  } else {\n    root.tocbot = factory(root);\n  }\n})(typeof global !== 'undefined' ? global : this.window || this.global, function (root) {\n  'use strict'; // Default options.\n\n  var defaultOptions = require('./default-options.js'); // Object to store current options.\n\n\n  var options = {}; // Object for public APIs.\n\n  var tocbot = {};\n\n  var BuildHtml = require('./build-html.js');\n\n  var ParseContent = require('./parse-content.js'); // Keep these variables at top scope once options are passed in.\n\n\n  var buildHtml;\n  var parseContent; // Just return if its not a browser.\n\n  var supports = !!root && !!root.document && !!root.document.querySelector && !!root.addEventListener; // Feature test\n\n  if (typeof window === 'undefined' && !supports) {\n    return;\n  }\n\n  var headingsArray; // From: https://github.com/Raynos/xtend\n\n  var hasOwnProperty = Object.prototype.hasOwnProperty;\n\n  function extend() {\n    var target = {};\n\n    for (var i = 0; i < arguments.length; i++) {\n      var source = arguments[i];\n\n      for (var key in source) {\n        if (hasOwnProperty.call(source, key)) {\n          target[key] = source[key];\n        }\n      }\n    }\n\n    return target;\n  } // From: https://remysharp.com/2010/07/21/throttling-function-calls\n\n\n  function throttle(fn, threshhold, scope) {\n    threshhold || (threshhold = 250);\n    var last;\n    var deferTimer;\n    return function () {\n      var context = scope || this;\n      var now = +new Date();\n      var args = arguments;\n\n      if (last && now < last + threshhold) {\n        // hold on to it\n        clearTimeout(deferTimer);\n        deferTimer = setTimeout(function () {\n          last = now;\n          fn.apply(context, args);\n        }, threshhold);\n      } else {\n        last = now;\n        fn.apply(context, args);\n      }\n    };\n  }\n  /**\n   * Destroy tocbot.\n   */\n\n\n  tocbot.destroy = function () {\n    if (!options.skipRendering) {\n      // Clear HTML.\n      try {\n        document.querySelector(options.tocSelector).innerHTML = '';\n      } catch (e) {\n        console.warn('Element not found: ' + options.tocSelector); // eslint-disable-line\n      }\n    } // Remove event listeners.\n\n\n    if (options.scrollContainer && document.querySelector(options.scrollContainer)) {\n      document.querySelector(options.scrollContainer).removeEventListener('scroll', this._scrollListener, false);\n      document.querySelector(options.scrollContainer).removeEventListener('resize', this._scrollListener, false);\n\n      if (buildHtml) {\n        document.querySelector(options.scrollContainer).removeEventListener('click', this._clickListener, false);\n      }\n    } else {\n      document.removeEventListener('scroll', this._scrollListener, false);\n      document.removeEventListener('resize', this._scrollListener, false);\n\n      if (buildHtml) {\n        document.removeEventListener('click', this._clickListener, false);\n      }\n    }\n  };\n  /**\n   * Initialize tocbot.\n   * @param {object} customOptions\n   */\n\n\n  tocbot.init = function (customOptions) {\n    // feature test\n    if (!supports) {\n      return;\n    } // Merge defaults with user options.\n    // Set to options variable at the top.\n\n\n    options = extend(defaultOptions, customOptions || {});\n    this.options = options;\n    this.state = {}; // Init smooth scroll if enabled (default).\n\n    if (options.scrollSmooth) {\n      options.duration = options.scrollSmoothDuration;\n      options.offset = options.scrollSmoothOffset;\n      tocbot.scrollSmooth = require('./scroll-smooth').initSmoothScrolling(options);\n    } // Pass options to these modules.\n\n\n    buildHtml = BuildHtml(options);\n    parseContent = ParseContent(options); // For testing purposes.\n\n    this._buildHtml = buildHtml;\n    this._parseContent = parseContent; // Destroy it if it exists first.\n\n    tocbot.destroy(); // Get headings array.\n\n    headingsArray = parseContent.selectHeadings(options.contentSelector, options.headingSelector); // Return if no headings are found.\n\n    if (headingsArray === null) {\n      return;\n    } // Build nested headings array.\n\n\n    var nestedHeadingsObj = parseContent.nestHeadingsArray(headingsArray);\n    var nestedHeadings = nestedHeadingsObj.nest; // Render.\n\n    if (!options.skipRendering) {\n      buildHtml.render(options.tocSelector, nestedHeadings);\n    } // Update Sidebar and bind listeners.\n\n\n    this._scrollListener = throttle(function (e) {\n      buildHtml.updateToc(headingsArray);\n      var isTop = e && e.target && e.target.scrollingElement && e.target.scrollingElement.scrollTop === 0;\n\n      if (e && (e.eventPhase === 0 || e.currentTarget === null) || isTop) {\n        buildHtml.updateToc(headingsArray);\n\n        if (options.scrollEndCallback) {\n          options.scrollEndCallback(e);\n        }\n      }\n    }, options.throttleTimeout);\n\n    this._scrollListener();\n\n    if (options.scrollContainer && document.querySelector(options.scrollContainer)) {\n      document.querySelector(options.scrollContainer).addEventListener('scroll', this._scrollListener, false);\n      document.querySelector(options.scrollContainer).addEventListener('resize', this._scrollListener, false);\n    } else {\n      document.addEventListener('scroll', this._scrollListener, false);\n      document.addEventListener('resize', this._scrollListener, false);\n    } // Bind click listeners to disable animation.\n\n\n    var timeout = null;\n    this._clickListener = throttle(function (event) {\n      if (options.scrollSmooth) {\n        buildHtml.disableTocAnimation(event);\n      }\n\n      buildHtml.updateToc(headingsArray); // Timeout to re-enable the animation.\n\n      timeout && clearTimeout(timeout);\n      timeout = setTimeout(function () {\n        buildHtml.enableTocAnimation();\n      }, options.scrollSmoothDuration);\n    }, options.throttleTimeout);\n\n    if (options.scrollContainer && document.querySelector(options.scrollContainer)) {\n      document.querySelector(options.scrollContainer).addEventListener('click', this._clickListener, false);\n    } else {\n      document.addEventListener('click', this._clickListener, false);\n    }\n\n    return this;\n  };\n  /**\n   * Refresh tocbot.\n   */\n\n\n  tocbot.refresh = function (customOptions) {\n    tocbot.destroy();\n    tocbot.init(customOptions || this.options);\n  }; // Make tocbot available globally.\n\n\n  root.tocbot = tocbot;\n  return tocbot;\n});","import React from 'react';\nimport PropTypes from 'prop-types';\nimport tocbot from 'tocbot';\nimport {FormattedMessage} from 'react-intl';\n\nclass TOC extends React.Component {\n    componentDidMount() {\n        tocbot.init({\n            // Where to render the table of contents.\n            tocSelector: `#artile_TocListContainer`,\n            // Where to grab the headings to build the table of contents.\n            contentSelector: `#article_Content`,\n            // Which headings to grab inside of the contentSelector element.\n            headingSelector: `h2, h3`,\n            headingsOffset: parseInt(this.props.headingsOffset),\n            \n        })\n    }\n\n    render() {\n        return (\n            <nav data-cy=\"toc\" css={{\n                position: 'fixed',\n                overflowY: 'auto',\n                top: '101px',\n                bottom: '0',\n                fontSize: '17px', // 添加右側目錄的字体大小\n              }}>\n                {(this.props.showHeading ? <FormattedMessage id=\"rightcontents_title\">\n              {txt => (\n                <h3 onDark={true}>{txt}</h3>\n              )} </FormattedMessage>: null)}\n                <div id =\"artile_TocListContainer\" className='toc-list-container'></div>\n            </nav>\n        )\n    }\n}\n\nTOC.defaultProps = {\n    headingsOffset: `5`,\n    showHeading: true,\n}\n\nTOC.propTypes = {\n    headingsOffset: PropTypes.string,\n    className: PropTypes.string,\n    listClasses: PropTypes.string,\n    showHeading: PropTypes.bool,\n}\n\nexport default TOC\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n */\n\nimport React from 'react';\nimport { colors, media } from 'theme';\nimport isItemActive from 'utils/isItemActive';\nimport MetaTitle from '../MetaTitle';\nimport ChevronSvg from '../ChevronSvg';\n\nclass Section extends React.Component {\n  state = {\n    uid: ('' + Math.random()).replace(/\\D/g, ''),\n    navHidden: true\n  };\n  onNavClick = (e) => {\n    if (e.target.parentElement.localName == \"li\") {\n      this.setState({ navHidden: !this.state.navHidden });\n      if (e.target.parentElement.ariaExpanded !== \"false\") {\n        e.target.parentElement.ariaExpanded = false;\n      } else {\n        e.target.parentElement.ariaExpanded = true;\n      }\n    }\n    if (e.target.parentElement.localName == \"div\") {\n      this.setState({ navHidden: !this.state.navHidden });\n      if (e.target.parentElement.parentElement.ariaExpanded !== \"false\") {\n        e.target.parentElement.parentElement.ariaExpanded = false;\n      } else {\n        e.target.parentElement.parentElement.ariaExpanded = true;\n      }\n    }\n    if (e.target.parentElement.localName == \"g\") {\n      this.setState({ navHidden: !this.state.navHidden });\n      if (e.target.parentElement.parentElement.parentElement.parentElement.ariaExpanded !== \"false\") {\n        e.target.parentElement.parentElement.parentElement.parentElement.ariaExpanded = false;\n      } else {\n        e.target.parentElement.parentElement.parentElement.parentElement.ariaExpanded = true;\n      }\n    }\n    e.stopPropagation();\n    e.preventDefault();\n  }\n\n  renderSectionItems(items) {\n    const {\n      activeItemId,\n      createLink,\n      isActive,\n      isScrollSync,\n      location,\n      onLinkClick,\n      onSectionTitleClick,\n      section,\n    } = this.props;\n    const uid = 'section_' + this.state.uid;\n    return (\n      <ul\n        id={uid}\n        css={{\n          fontFeatureSettings: \"'tnum'\",\n          marginBottom: 10,\n\n          [media.greaterThan('small')]: {\n            display: isActive ? 'block' : 'none',\n          },\n        }}>\n        {items.map((item, index) => (\n          <li\n            key={item.id === \"none\" ? item.title : item.id}\n            css={{\n              marginTop: 12,\n              marginLeft: 20,\n              userSelect: 'none',\n              fontSize: 16,\n            }}\n            className={item.id}\n            aria-expanded={false}\n            onClick={this.onNavClick}>\n            {item.id == \"none\" && <div className=\"css-zqkdcl\" css={{\n              display: \"contents\", cursor: 'pointer', [media.greaterThan('small')]: {\n                color: isActive ? colors.text : colors.subtle,\n                ':hover': {\n                  color: colors.linkblue,\n                },\n              },\n            }}>{item.title}\n              <ChevronSvg\n                cssProps={{\n                  marginLeft: 7,\n                  transition: 'transform 0.2s ease',\n                  [media.lessThan('small')]: {\n                    display: 'none',\n                  },\n                }}\n              />\n            </div>}\n            <div className={item.id} >\n              {item.id !== \"none\" && (createLink({\n                isActive: isScrollSync\n                  ? activeItemId === item.id\n                  : isItemActive(location, item, section.directory),\n                item: section.isOrdered\n                  ? { ...item, title: `${index + 1}. ${item.title}` }\n                  : item,\n                location,\n                onLinkClick,\n                section,\n              }))}\n              {item.subitems && (\n                this.renderSectionItems(item.subitems)\n              )}\n            </div>\n          </li>\n        ))}\n      </ul>\n    )\n  }\n\n  render() {\n    const {\n      activeItemId,\n      createLink,\n      isActive,\n      isScrollSync,\n      location,\n      onLinkClick,\n      onSectionTitleClick,\n      section,\n    } = this.props;\n    const uid = 'section_' + this.state.uid;\n    return (\n      <div>\n        <button\n          aria-expanded={isActive}\n          aria-controls={uid}\n          css={{\n            cursor: 'pointer',\n            backgroundColor: 'transparent',\n            border: 0,\n            marginTop: 12,\n            outline: 'none',\n          }}\n          onClick={onSectionTitleClick}>\n          <MetaTitle\n            cssProps={{\n              [media.greaterThan('small')]: {\n                color: isActive ? colors.text : colors.subtle,\n\n                ':hover': {\n                  color: colors.linkblue,\n                },\n              },\n            }}>\n            {section.title}\n            <ChevronSvg\n              cssProps={{\n                marginLeft: 7,\n                transform: isActive ? 'rotateX(180deg)' : 'rotateX(0deg)',\n                transition: 'transform 0.2s ease',\n\n                [media.lessThan('small')]: {\n                  display: 'none',\n                },\n              }}\n            />\n          </MetaTitle>\n        </button>\n        {\n          this.renderSectionItems(section.items)\n        }\n      </div>\n    );\n  }\n}\nexport default Section;\n","require(\"core-js/modules/es6.regexp.replace\");\n\nrequire(\"core-js/modules/es6.regexp.split\");\n\nrequire(\"core-js/modules/es6.array.index-of\");\n\nrequire(\"core-js/modules/es6.array.some\");\n\nrequire(\"core-js/modules/es6.array.for-each\");\n\n/**\n * This file is responsible for building the DOM and updating DOM state.\n *\n * @author Tim Scanlin\n */\nmodule.exports = function (options) {\n  var forEach = [].forEach;\n  var some = [].some;\n  var body = document.body;\n  var currentlyHighlighting = true;\n  var SPACE_CHAR = ' ';\n  /**\n   * Create link and list elements.\n   * @param {Object} d\n   * @param {HTMLElement} container\n   * @return {HTMLElement}\n   */\n\n  function createEl(d, container) {\n    var link = container.appendChild(createLink(d));\n\n    if (d.children.length) {\n      var list = createList(d.isCollapsed);\n      d.children.forEach(function (child) {\n        createEl(child, list);\n      });\n      link.appendChild(list);\n    }\n  }\n  /**\n   * Render nested heading array data into a given selector.\n   * @param {String} selector\n   * @param {Array} data\n   * @return {HTMLElement}\n   */\n\n\n  function render(selector, data) {\n    var collapsed = false;\n    var container = createList(collapsed);\n    data.forEach(function (d) {\n      createEl(d, container);\n    });\n    var parent = document.querySelector(selector); // Return if no parent is found.\n\n    if (parent === null) {\n      return;\n    } // Remove existing child if it exists.\n\n\n    if (parent.firstChild) {\n      parent.removeChild(parent.firstChild);\n    } // Just return the parent and don't append the list if no links are found.\n\n\n    if (data.length === 0) {\n      return parent;\n    } // Append the Elements that have been created\n\n\n    return parent.appendChild(container);\n  }\n  /**\n   * Create link element.\n   * @param {Object} data\n   * @return {HTMLElement}\n   */\n\n\n  function createLink(data) {\n    var item = document.createElement('li');\n    var a = document.createElement('a');\n\n    if (options.listItemClass) {\n      item.setAttribute('class', options.listItemClass);\n    }\n\n    if (options.onClick) {\n      a.onclick = options.onClick;\n    }\n\n    if (options.includeHtml && data.childNodes.length) {\n      forEach.call(data.childNodes, function (node) {\n        a.appendChild(node.cloneNode(true));\n      });\n    } else {\n      // Default behavior.\n      a.textContent = data.textContent;\n    }\n\n    a.setAttribute('href', '#' + data.id);\n    a.setAttribute('class', options.linkClass + SPACE_CHAR + 'node-name--' + data.nodeName + SPACE_CHAR + options.extraLinkClasses);\n    item.appendChild(a);\n    return item;\n  }\n  /**\n   * Create list element.\n   * @param {Boolean} isCollapsed\n   * @return {HTMLElement}\n   */\n\n\n  function createList(isCollapsed) {\n    var listElement = options.orderedList ? 'ol' : 'ul';\n    var list = document.createElement(listElement);\n    var classes = options.listClass + SPACE_CHAR + options.extraListClasses;\n\n    if (isCollapsed) {\n      classes += SPACE_CHAR + options.collapsibleClass;\n      classes += SPACE_CHAR + options.isCollapsedClass;\n    }\n\n    list.setAttribute('class', classes);\n    return list;\n  }\n  /**\n   * Update fixed sidebar class.\n   * @return {HTMLElement}\n   */\n\n\n  function updateFixedSidebarClass() {\n    if (options.scrollContainer && document.querySelector(options.scrollContainer)) {\n      var top;\n      top = document.querySelector(options.scrollContainer).scrollTop;\n    } else {\n      top = document.documentElement.scrollTop || body.scrollTop;\n    }\n\n    var posFixedEl = document.querySelector(options.positionFixedSelector);\n\n    if (options.fixedSidebarOffset === 'auto') {\n      options.fixedSidebarOffset = document.querySelector(options.tocSelector).offsetTop;\n    }\n\n    if (top > options.fixedSidebarOffset) {\n      if (posFixedEl.className.indexOf(options.positionFixedClass) === -1) {\n        posFixedEl.className += SPACE_CHAR + options.positionFixedClass;\n      }\n    } else {\n      posFixedEl.className = posFixedEl.className.split(SPACE_CHAR + options.positionFixedClass).join('');\n    }\n  }\n  /**\n   * Get top position of heading\n   * @param {HTMLElement}\n   * @return {integer} position\n   */\n\n\n  function getHeadingTopPos(obj) {\n    var position = 0;\n\n    if (obj !== document.querySelector(options.contentSelector && obj != null)) {\n      position = obj.offsetTop;\n\n      if (options.hasInnerContainers) {\n        position += getHeadingTopPos(obj.offsetParent);\n      }\n    }\n\n    return position;\n  }\n  /**\n   * Update TOC highlighting and collpased groupings.\n   */\n\n\n  function updateToc(headingsArray) {\n    // If a fixed content container was set\n    if (options.scrollContainer && document.querySelector(options.scrollContainer)) {\n      var top;\n      top = document.querySelector(options.scrollContainer).scrollTop;\n    } else {\n      top = document.documentElement.scrollTop || body.scrollTop;\n    } // Add fixed class at offset\n\n\n    if (options.positionFixedSelector) {\n      updateFixedSidebarClass();\n    } // Get the top most heading currently visible on the page so we know what to highlight.\n\n\n    var headings = headingsArray;\n    var topHeader; // Using some instead of each so that we can escape early.\n\n    if (currentlyHighlighting && document.querySelector(options.tocSelector) !== null && headings.length > 0) {\n      some.call(headings, function (heading, i) {\n        if (getHeadingTopPos(heading) > top + options.headingsOffset + 10) {\n          // Don't allow negative index value.\n          var index = i === 0 ? i : i - 1;\n          topHeader = headings[index];\n          return true;\n        } else if (i === headings.length - 1) {\n          // This allows scrolling for the last heading on the page.\n          topHeader = headings[headings.length - 1];\n          return true;\n        }\n      }); // Remove the active class from the other tocLinks.\n\n      var tocLinks = document.querySelector(options.tocSelector).querySelectorAll('.' + options.linkClass);\n      forEach.call(tocLinks, function (tocLink) {\n        tocLink.className = tocLink.className.split(SPACE_CHAR + options.activeLinkClass).join('');\n      });\n      var tocLis = document.querySelector(options.tocSelector).querySelectorAll('.' + options.listItemClass);\n      forEach.call(tocLis, function (tocLi) {\n        tocLi.className = tocLi.className.split(SPACE_CHAR + options.activeListItemClass).join('');\n      }); // Add the active class to the active tocLink.\n\n      var activeTocLink = document.querySelector(options.tocSelector).querySelector('.' + options.linkClass + '.node-name--' + topHeader.nodeName + '[href=\"#' + topHeader.id.replace(/([ #;&,.+*~':\"!^$[\\]()=>|/@])/g, '\\\\$1') + '\"]');\n\n      if (activeTocLink.className.indexOf(options.activeLinkClass) === -1) {\n        activeTocLink.className += SPACE_CHAR + options.activeLinkClass;\n      }\n\n      var li = activeTocLink.parentNode;\n\n      if (li && li.className.indexOf(options.activeListItemClass) === -1) {\n        li.className += SPACE_CHAR + options.activeListItemClass;\n      }\n\n      var tocLists = document.querySelector(options.tocSelector).querySelectorAll('.' + options.listClass + '.' + options.collapsibleClass); // Collapse the other collapsible lists.\n\n      forEach.call(tocLists, function (list) {\n        if (list.className.indexOf(options.isCollapsedClass) === -1) {\n          list.className += SPACE_CHAR + options.isCollapsedClass;\n        }\n      }); // Expand the active link's collapsible list and its sibling if applicable.\n\n      if (activeTocLink.nextSibling && activeTocLink.nextSibling.className.indexOf(options.isCollapsedClass) !== -1) {\n        activeTocLink.nextSibling.className = activeTocLink.nextSibling.className.split(SPACE_CHAR + options.isCollapsedClass).join('');\n      }\n\n      removeCollapsedFromParents(activeTocLink.parentNode.parentNode);\n    }\n  }\n  /**\n   * Remove collpased class from parent elements.\n   * @param {HTMLElement} element\n   * @return {HTMLElement}\n   */\n\n\n  function removeCollapsedFromParents(element) {\n    if (element.className.indexOf(options.collapsibleClass) !== -1 && element.className.indexOf(options.isCollapsedClass) !== -1) {\n      element.className = element.className.split(SPACE_CHAR + options.isCollapsedClass).join('');\n      return removeCollapsedFromParents(element.parentNode.parentNode);\n    }\n\n    return element;\n  }\n  /**\n   * Disable TOC Animation when a link is clicked.\n   * @param {Event} event\n   */\n\n\n  function disableTocAnimation(event) {\n    var target = event.target || event.srcElement;\n\n    if (typeof target.className !== 'string' || target.className.indexOf(options.linkClass) === -1) {\n      return;\n    } // Bind to tocLink clicks to temporarily disable highlighting\n    // while smoothScroll is animating.\n\n\n    currentlyHighlighting = false;\n  }\n  /**\n   * Enable TOC Animation.\n   */\n\n\n  function enableTocAnimation() {\n    currentlyHighlighting = true;\n  }\n\n  return {\n    enableTocAnimation: enableTocAnimation,\n    disableTocAnimation: disableTocAnimation,\n    render: render,\n    updateToc: updateToc\n  };\n};","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n */\n\nimport MarkdownPage from './MarkdownPage';\n\nexport default MarkdownPage;\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n * @flow\n */\n\nimport slugify from 'slugify';\n\nexport default (string: string, directory?: string): string => {\n  const filename = slugify(string);\n  const filenameWithSuffix = slugify(string);\n\n  return directory ? `/${directory}/${filename}/` : filenameWithSuffix;\n};\n","'use strict';\nvar $export = require('./_export');\nvar toIObject = require('./_to-iobject');\nvar toInteger = require('./_to-integer');\nvar toLength = require('./_to-length');\nvar $native = [].lastIndexOf;\nvar NEGATIVE_ZERO = !!$native && 1 / [1].lastIndexOf(1, -0) < 0;\n\n$export($export.P + $export.F * (NEGATIVE_ZERO || !require('./_strict-method')($native)), 'Array', {\n  // 22.1.3.14 / 15.4.4.15 Array.prototype.lastIndexOf(searchElement [, fromIndex])\n  lastIndexOf: function lastIndexOf(searchElement /* , fromIndex = @[*-1] */) {\n    // convert -0 to +0\n    if (NEGATIVE_ZERO) return $native.apply(this, arguments) || 0;\n    var O = toIObject(this);\n    var length = toLength(O.length);\n    var index = length - 1;\n    if (arguments.length > 1) index = Math.min(index, toInteger(arguments[1]));\n    if (index < 0) index = length + index;\n    for (;index >= 0; index--) if (index in O) if (O[index] === searchElement) return index || 0;\n    return -1;\n  }\n});\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n */\n\nimport React, {Component} from 'react';\nimport Flex from 'components/Flex';\nimport Section from './Section';\nimport ScrollSyncSection from './ScrollSyncSection';\nimport {media} from 'theme';\n\nclass Sidebar extends Component {\n  constructor(props, context) {\n    super(props, context);\n\n    this.state = {\n      activeSection: props.defaultActiveSection,\n    };\n  }\n\n  render() {\n    const {\n      closeParentMenu,\n      createLink,\n      enableScrollSync,\n      location,\n      sectionList,\n    } = this.props;\n    const {activeSection} = this.state;\n\n    const SectionComponent = enableScrollSync ? ScrollSyncSection : Section;\n\n    return (\n      <Flex\n        type=\"nav\"\n        direction=\"column\"\n        halign=\"stretch\"\n        css={{\n          // width: '270px',\n          // paddingLeft: 20,\n          position: 'relative',\n          maxHeight: 'calc(100vh - 70px - 1rem*2)',\n          [media.greaterThan('largerSidebar')]: {\n            // paddingLeft: 40,\n          },\n\n          [media.lessThan('small')]: {\n            paddingBottom: 100,\n          },\n        }}>\n        {sectionList.map((section, index) => (\n          <SectionComponent\n            createLink={createLink}\n            isActive={activeSection === section || sectionList.length === 1}\n            key={index}\n            location={location}\n            onLinkClick={closeParentMenu}\n            onSectionTitleClick={() => this._toggleSection(section)}\n            section={section}\n          />\n        ))}\n      </Flex>\n    );\n  }\n\n  _toggleSection(section) {\n    this.setState(state => ({\n      activeSection: state.activeSection === section ? null : section,\n    }));\n  }\n}\n\nexport default Sidebar;\n","require(\"core-js/modules/es6.array.map\");\n\nrequire(\"core-js/modules/es6.string.trim\");\n\nrequire(\"core-js/modules/es6.regexp.split\");\n\nrequire(\"core-js/modules/es6.array.reduce\");\n\n/**\n * This file is responsible for parsing the content from the DOM and making\n * sure data is nested properly.\n *\n * @author Tim Scanlin\n */\nmodule.exports = function parseContent(options) {\n  var reduce = [].reduce;\n  /**\n   * Get the last item in an array and return a reference to it.\n   * @param {Array} array\n   * @return {Object}\n   */\n\n  function getLastItem(array) {\n    return array[array.length - 1];\n  }\n  /**\n   * Get heading level for a heading dom node.\n   * @param {HTMLElement} heading\n   * @return {Number}\n   */\n\n\n  function getHeadingLevel(heading) {\n    return +heading.nodeName.split('H').join('');\n  }\n  /**\n   * Get important properties from a heading element and store in a plain object.\n   * @param {HTMLElement} heading\n   * @return {Object}\n   */\n\n\n  function getHeadingObject(heading) {\n    // each node is processed twice by this method because nestHeadingsArray() and addNode() calls it\n    // first time heading is real DOM node element, second time it is obj\n    // that is causing problem so I am processing only original DOM node\n    if (!(heading instanceof window.HTMLElement)) return heading;\n\n    if (options.ignoreHiddenElements && (!heading.offsetHeight || !heading.offsetParent)) {\n      return null;\n    }\n\n    var obj = {\n      id: heading.id,\n      children: [],\n      nodeName: heading.nodeName,\n      headingLevel: getHeadingLevel(heading),\n      textContent: options.headingLabelCallback ? String(options.headingLabelCallback(heading.textContent)) : heading.textContent.trim()\n    };\n\n    if (options.includeHtml) {\n      obj.childNodes = heading.childNodes;\n    }\n\n    if (options.headingObjectCallback) {\n      return options.headingObjectCallback(obj, heading);\n    }\n\n    return obj;\n  }\n  /**\n   * Add a node to the nested array.\n   * @param {Object} node\n   * @param {Array} nest\n   * @return {Array}\n   */\n\n\n  function addNode(node, nest) {\n    var obj = getHeadingObject(node);\n    var level = obj.headingLevel;\n    var array = nest;\n    var lastItem = getLastItem(array);\n    var lastItemLevel = lastItem ? lastItem.headingLevel : 0;\n    var counter = level - lastItemLevel;\n\n    while (counter > 0) {\n      lastItem = getLastItem(array);\n\n      if (lastItem && lastItem.children !== undefined) {\n        array = lastItem.children;\n      }\n\n      counter--;\n    }\n\n    if (level >= options.collapseDepth) {\n      obj.isCollapsed = true;\n    }\n\n    array.push(obj);\n    return array;\n  }\n  /**\n   * Select headings in content area, exclude any selector in options.ignoreSelector\n   * @param {String} contentSelector\n   * @param {Array} headingSelector\n   * @return {Array}\n   */\n\n\n  function selectHeadings(contentSelector, headingSelector) {\n    var selectors = headingSelector;\n\n    if (options.ignoreSelector) {\n      selectors = headingSelector.split(',').map(function mapSelectors(selector) {\n        return selector.trim() + ':not(' + options.ignoreSelector + ')';\n      });\n    }\n\n    try {\n      return document.querySelector(contentSelector).querySelectorAll(selectors);\n    } catch (e) {\n      console.warn('Element not found: ' + contentSelector); // eslint-disable-line\n\n      return null;\n    }\n  }\n  /**\n   * Nest headings array into nested arrays with 'children' property.\n   * @param {Array} headingsArray\n   * @return {Object}\n   */\n\n\n  function nestHeadingsArray(headingsArray) {\n    return reduce.call(headingsArray, function reducer(prev, curr) {\n      var currentHeading = getHeadingObject(curr);\n\n      if (currentHeading) {\n        addNode(currentHeading, prev.nest);\n      }\n\n      return prev;\n    }, {\n      nest: []\n    });\n  }\n\n  return {\n    nestHeadingsArray: nestHeadingsArray,\n    selectHeadings: selectHeadings\n  };\n};","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * @emails react-core\n */\n\nimport NavigationFooter from './NavigationFooter';\n\nexport default NavigationFooter;\n","require(\"core-js/modules/es6.regexp.split\");\n\nrequire(\"core-js/modules/es6.array.last-index-of\");\n\nrequire(\"core-js/modules/es6.array.index-of\");\n\n/* globals location, requestAnimationFrame */\nexports.initSmoothScrolling = initSmoothScrolling;\n\nfunction initSmoothScrolling(options) {\n  if (isCssSmoothSCrollSupported()) {}\n\n  var duration = options.duration;\n  var offset = options.offset;\n  var pageUrl = location.hash ? stripHash(location.href) : location.href;\n  delegatedLinkHijacking();\n\n  function delegatedLinkHijacking() {\n    document.body.addEventListener('click', onClick, false);\n\n    function onClick(e) {\n      if (!isInPageLink(e.target) || e.target.className.indexOf('no-smooth-scroll') > -1 || e.target.href.charAt(e.target.href.length - 2) === '#' && e.target.href.charAt(e.target.href.length - 1) === '!' || e.target.className.indexOf(options.linkClass) === -1) {\n        return;\n      } // Don't prevent default or hash doesn't change.\n      // e.preventDefault()\n\n\n      jump(e.target.hash, {\n        duration: duration,\n        offset: offset,\n        callback: function callback() {\n          setFocus(e.target.hash);\n        }\n      });\n    }\n  }\n\n  function isInPageLink(n) {\n    return n.tagName.toLowerCase() === 'a' && (n.hash.length > 0 || n.href.charAt(n.href.length - 1) === '#') && (stripHash(n.href) === pageUrl || stripHash(n.href) + '#' === pageUrl);\n  }\n\n  function stripHash(url) {\n    return url.slice(0, url.lastIndexOf('#'));\n  }\n\n  function isCssSmoothSCrollSupported() {\n    return 'scrollBehavior' in document.documentElement.style;\n  } // Adapted from:\n  // https://www.nczonline.net/blog/2013/01/15/fixing-skip-to-content-links/\n\n\n  function setFocus(hash) {\n    var element = document.getElementById(hash.substring(1));\n\n    if (element) {\n      if (!/^(?:a|select|input|button|textarea)$/i.test(element.tagName)) {\n        element.tabIndex = -1;\n      }\n\n      element.focus();\n    }\n  }\n}\n\nfunction jump(target, options) {\n  var start = window.pageYOffset;\n  var opt = {\n    duration: options.duration,\n    offset: options.offset || 0,\n    callback: options.callback,\n    easing: options.easing || easeInOutQuad\n  }; // This makes ids that start with a number work: ('[id=\"' + decodeURI(target).split('#').join('') + '\"]')\n  // DecodeURI for nonASCII hashes, they was encoded, but id was not encoded, it lead to not finding the tgt element by id.\n  // And this is for IE: document.body.scrollTop\n\n  var tgt = document.querySelector('[id=\"' + decodeURI(target).split('#').join('') + '\"]');\n  var distance = typeof target === 'string' ? opt.offset + (target ? tgt && tgt.getBoundingClientRect().top || 0 // handle non-existent links better.\n  : -(document.documentElement.scrollTop || document.body.scrollTop)) : target;\n  var duration = typeof opt.duration === 'function' ? opt.duration(distance) : opt.duration;\n  var timeStart;\n  var timeElapsed;\n  requestAnimationFrame(function (time) {\n    timeStart = time;\n    loop(time);\n  });\n\n  function loop(time) {\n    timeElapsed = time - timeStart;\n    window.scrollTo(0, opt.easing(timeElapsed, start, distance, duration));\n\n    if (timeElapsed < duration) {\n      requestAnimationFrame(loop);\n    } else {\n      end();\n    }\n  }\n\n  function end() {\n    window.scrollTo(0, start + distance);\n\n    if (typeof opt.callback === 'function') {\n      opt.callback();\n    }\n  } // Robert Penner's easeInOutQuad - http://robertpenner.com/easing/\n\n\n  function easeInOutQuad(t, b, c, d) {\n    t /= d / 2;\n    if (t < 1) return c / 2 * t * t + b;\n    t--;\n    return -c / 2 * (t * (t - 2) - 1) + b;\n  }\n}","import React from 'react';\nimport {colors, media} from 'theme';\n// import html2canvas from 'html2canvas';\n// import jsPdf from 'jspdf';\n\nclass DownloadPDF extends React.Component {\n\n  constructor(props){\n    super(props);\n    this.downloadPDF = this.downloadPDF.bind(this);\n  }\n\n  downloadPDF(event) {\n    // console.log(\"downloadPDF\");\n    // const domElement = document.getElementById('article_Content');\n    \n\n    // html2canvas(domElement).then((canvas)=>{\n\n    //   const img = canvas.toDataURL('image/jpeg');\n    //   console.log(canvas.width+\",\" +canvas.height);\n\n    //   var HTML_Width = canvas.width;\n    //   var HTML_Height = canvas.height;\n    //   var top_left_margin = 15;\n    //   var PDF_Width = HTML_Width+(top_left_margin*2);\n    //   var PDF_Height = (PDF_Width*1.5)+(top_left_margin*2);\n    //   console.log(\"PDF_Width: \"+PDF_Width);\n    //   console.log(\"PDF_Height: \"+PDF_Height);\n    //   var canvas_image_width = HTML_Width;\n    //   var canvas_image_height = HTML_Height;\n      \n    //   var totalPDFPages = Math.ceil(HTML_Height/PDF_Height)-1;\n    //   console.log(\"totalPDFPages: \"+totalPDFPages);\n\n    //   var pdf = new jsPdf('p', 'pt',  [PDF_Width, PDF_Height]);\n\n    //   pdf.addImage(img, 'JPG', top_left_margin, top_left_margin,canvas_image_width,canvas_image_height);\n    //   for (var i = 1; i <= totalPDFPages; i++) { \n    //     pdf.addPage(PDF_Width, PDF_Height);\n    //     pdf.addImage(img, 'JPG', top_left_margin, -(PDF_Height*i)+(top_left_margin*4),canvas_image_width,canvas_image_height);\n    //     }\n    //   pdf.save(this.props.markdownTitle+'.pdf'); \n    // })\n  }\n\n  render() {\n    return (\n      <div css={style} onClick={this.downloadPDF}>\n    {this.props.title}\n  </div>\n    )\n  }\n  \n}\n\nconst style = {\n  display: 'flex',\n  flexDirection: 'row',\n  alignItems: 'center',\n  color: colors.dark,\n  transition: 'color 0.2s ease-out',\n  paddingLeft: 15,\n  paddingRight: 15,\n  fontWeight: 300,\n\n  ':focus': {\n    outline: 0,\n    backgroundColor: colors.dark,\n    color: colors.white,\n  },\n\n  [media.size('xsmall')]: {\n    paddingLeft: 8,\n    paddingRight: 8,\n  },\n\n  [media.between('small', 'medium')]: {\n    paddingLeft: 10,\n    paddingRight: 10,\n  },\n\n  [media.greaterThan('xlarge')]: {\n    paddingLeft: 20,\n    paddingRight: 20,\n    fontSize: 18,\n\n    ':hover:not(:focus)': {\n      color: colors.brand,\n    },\n  },\n};\n\n\nexport default DownloadPDF;\n"],"sourceRoot":""}