fair-web/views/page.ejs

<% if (paginate.pageCnt > 1) { %>
<div style="text-align: center; ">
  <div class="ui pagination menu" style="box-shadow: none; ">
    <a class="<% if (paginate.currPage === 1) { %> disabled<% } %> icon item" <% if (paginate.currPage !== 1) { %>href="<%= syzoj.utils.makeUrl(req, Object.assign({}, req.query, { page: paginate.currPage - 1 })) %>" <% } %>id="page_prev">
      <i class="left chevron icon"></i>
    </a>
    <%
    let leftCnt = paginate.currPage - 2, rightCnt = paginate.pageCnt - paginate.currPage, omitLeft, omitRight;
    if (leftCnt + rightCnt > 15) {
      if (leftCnt <= 7) {
        rightCnt = 14 - leftCnt;
        omitRight = true;
      } else if (rightCnt <= 7) {
        leftCnt = 14 - rightCnt;
        omitLeft = true;
      } else {
        rightCnt = leftCnt = 7;
        omitLeft = omitRight = true;
      }
    } %>

    <% if (paginate.currPage !== 1) { %>
    <a class="item" href="<%= syzoj.utils.makeUrl(req, Object.assign({}, req.query, { page: 1 })) %>"><%= 1 %></a>
    <% } %>

    <% if (omitLeft) { %>
      <div class="disabled item">...</div>
    <% } %>

    <% for (let i = paginate.currPage - leftCnt; i < paginate.currPage; i++) { %>
      <a class="item" href="<%= syzoj.utils.makeUrl(req, Object.assign({}, req.query, { page: i })) %>"><%= i %></a>
    <% } %>

    <a class="active item" href="<%= syzoj.utils.makeUrl(req, Object.assign({}, req.query, { page: paginate.currPage })) %>"><%= paginate.currPage %></a>

    <% for (let i = paginate.currPage + 1; i <= paginate.currPage + rightCnt - 1; i++) { %>
      <a class="item" href="<%= syzoj.utils.makeUrl(req, Object.assign({}, req.query, { page: i })) %>"><%= i %></a>
    <% } %>

    <% if (omitRight) { %>
      <div class="disabled item">...</div>
    <% } %>

    <% if (paginate.currPage !== paginate.pageCnt) { %>
    <a class="item" href="<%= syzoj.utils.makeUrl(req, Object.assign({}, req.query, { page: paginate.pageCnt })) %>"><%= paginate.pageCnt %></a>
    <% } %>

    <a class="<% if (paginate.currPage === paginate.pageCnt) { %> disabled<% } %> icon item" <% if (paginate.currPage !== paginate.pageCnt) { %>href="<%= syzoj.utils.makeUrl(req, Object.assign({}, req.query, { page: paginate.currPage + 1 })) %>" <% } %>id="page_next">
      <i class="right chevron icon"></i>
    </a>
  </div>
</div>
<% } %>