hexo-theme-stellar/layout/_partial/main/navbar/article_banner.ejs

<%

var banner = {}

if (page.banner) {
  banner.url = page.banner
} else if (theme.topic.tree[page.topic]?.banner != null) {
  banner.url = theme.topic.tree[page.topic]?.banner
} else if (theme.wiki.tree[page.wiki]?.banner != null) {
  banner.url = theme.wiki.tree[page.wiki]?.banner
}
banner = Object.assign(banner, page.banner_info)
// 标题
if (banner.title == null) {
  banner.title = page.h1 != null ? page.h1 : page.title
}
// 副标题
if (banner.subtitle == null) {
  banner.subtitle = page.subtitle
}

function layoutBreadcrumb() {
  if (page.breadcrumb === false) {
    return `<div class="top"></div>`
  }
  var el = ''
  // 1.main
  el += `<div class="top bread-nav footnote">`
  // 2.left
  el += `<div class="left">`
  // 3.left.top: 面包屑导航
  el += `<div class="flex-row" id="breadcrumb">`
    // 首页
    el += `<a class="cap breadcrumb" href="${url_for(config.root)}">${__("btn.home")}</a>`
    if (theme.wiki.tree[page.wiki]) {
      el += partial('breadcrumb/wiki')
    } else if (page.notebook) {
      el += partial('breadcrumb/note')
    } else if (page.layout == 'post') {
      el += partial('breadcrumb/blog')
    } else {
      el += partial('breadcrumb/page')
    }
  // end 3.left.top
  el += `</div>`
  // 3.left.bottom
  el += partial('dateinfo')
  // end 2.left
  el += `</div>`
  // end 1.main
  el += `</div>`
  return el
}

function layoutTitle() {
  if (banner.title?.length > 0) {
    return `<h1 class="text title"><span>${banner.title}</span></h1>`
  } else {
    return ''
  }
}

function layoutSubtitle() {
  if (banner.subtitle?.length > 0) {
    return `<div class="text subtitle">${banner.subtitle}</div>`
  } else {
    return ''
  }
}

function layoutIcon() {
  if (banner.avatar?.length > 0 || banner.icon?.length > 0) {
    return `<img class="avatar" src="${banner.avatar || banner.icon}">`
  } else {
    return ''
  }
}

function layoutBottom() {
  const el_icon = layoutIcon()
  const el_title = layoutTitle()
  const el_subtitle = layoutSubtitle()
  var cls = ''
  if (el_title.length > 0 && el_subtitle.length == 0) {
    cls += ' only-title'
  }
  if (el_title.length > 0) {
    return `
    <div class="bottom${cls}">
      ${el_icon}
      <div class="text-area">
        ${el_title}
        ${el_subtitle}
      </div>
    </div>
    `
  } else {
    return ``
  }
}

function layoutDiv() {
  const bottom = layoutBottom()
  if (page.breadcrumb === false && bottom.length == 0) {
    return ``
  }
  const top = layoutBreadcrumb()
  var style = ``
  var el = ``
  el += `<div class="article banner top">`
  if (banner.url?.length > 0) {
    el += `<img class="bg" src="${banner.url}">`
    if (banner.color) {
      style += ' style="--text-banner:' + banner.color + '"'
    }
  }
  el += `
  <div class="content"${style}>
    ${top}
    ${bottom}
  </div>
  `
  el += `</div>`
  return el
}
%>
<%- layoutDiv() %>