使用混合导航最多呈现页面层次结构的三个级别
备注
从 2022 年 10 月 12 日起，Power Apps 门户更名为 Power Pages。 详细信息请参阅：Microsoft Power Pages 现已正式发布（博客）
不久后我们将迁移 Power Apps 门户文档并将其与 Power Pages 文档合并在一起。
此示例基于门户站点地图呈现最多呈现页面层次结构三个级别的混合导航类型。 此组件的规则是：
- 当前页面的上级页面将显示，返回主页（或返回可选 depth_offset 参数指定的最大深度）。
- 如果当前页具有子页，这些子页将显示。
- 如果当前页没有子页，当前页的同级页将显示。
{% assign depth_offset = depth_offset | default: 0 %}
{% assign current_page = current_page | default: page %}
{% assign current_depth = 0 %}
{% if current_page.children.size > 0 %}
{% assign leaf_page = false %}
{% else %}
{% assign leaf_page = true %}
{% endif %}
{% capture page_item %}
<li class=active>
<a href={{ current_page.url | h }} title={{ current_page.title | h }}>
{% if leaf_page %}
<span class=fa fa-fw aria-hidden=true></span>
{% else %}
<span class=fa fa-fw fa-caret-down aria-hidden=true></span>
{% endif %}
{{ current_page.title | h }}
</a>
{% unless leaf_page %}
<ul>
{% for child in current_page.children %}
<li>
<a href={{ child.url | h }} title={{ child.title | h }}>
{% if child.children.size > 0 %}
<span class=fa fa-fw fa-caret-right aria-hidden=true></span>
{% else %}
<span class=fa fa-fw aria-hidden=true></span>
{% endif %}
{{ child.title | h }}
{% if child.entity.logical_name == 'adx_shortcut' %}
<span class=fa fa-fw fa-external-link aria-hidden=true></span>
{% elsif child.entity.logical_name == 'adx_webfile' %}
<span class=fa fa-fw fa-file-o aria-hidden=true><span class=sr-only>(File)</span></span>
{% endif %}
</a>
</li>
{% endfor %}
</ul>
{% endunless %}
</li>
{% endcapture %}
<ul class=side-nav role=navigation>
{% assign crumb_count = 0 %}
{% assign leaf_mode = false %}
{% for crumb in current_page.breadcrumbs %}
{% unless current_depth < depth_offset %}
{% if forloop.last and leaf_page %}
{% assign leaf_mode = true %}
{% else %}
<li>
<a href={{ crumb.url | h }} title={{ crumb.title | h }}>
<span class=fa fa-fw fa-caret-right aria-hidden=true></span>
{{ crumb.title | h }}
</a>
</li>
{% endif %}
{% assign crumb_count = crumb_count | plus: 1 %}
{% endunless %}
{% assign current_depth = current_depth | plus: 1 %}
{% endfor %}
{% if crumb_count < 1 %}
{{ page_item }}
{% elsif crumb_count < 2 and leaf_mode %}
{% for parent_sibling in current_page.parent.parent.children %}
{% if parent_sibling.url == current_page.parent.url %}
<li>
<a href={{ current_page.parent.url | h }} title={{ current_page.parent.title | h }}>
<span class=fa fa-fw fa-caret-down aria-hidden=true></span>
{{ current_page.parent.title | h }}
</a>
<ul>
{% for sibling in current_page.parent.children %}
<li {% if sibling.url == current_page.url %}class=active{% endif %}>
<a href={{ sibling.url | h }} title={{ sibling.title | h }}>
{% if sibling.children.size > 0 %}
<span class=fa fa-fw fa-caret-right aria-hidden=true></span>
{% else %}
<span class=fa fa-fw aria-hidden=true></span>
{% endif %}
{{ sibling.title | h }}
{% if sibling.entity.logical_name == 'adx_shortcut' %}
<span class=fa fa-fw fa-external-link aria-hidden=true></span>
{% elsif sibling.entity.logical_name == 'adx_webfile' %}
<span class=fa fa-fw fa-file-o aria-hidden=true><span class=sr-only>(File)</span></span>
{% endif %}
</a>
</li>
{% endfor %}
</ul>
</li>
{% else %}
<li>
<a href={{ parent_sibling.url | h }} title={{ parent_sibling.title | h }}>
{% if parent_sibling.children.size > 0 %}
<span class=fa fa-fw fa-caret-right aria-hidden=true></span>
{% else %}
<span class=fa fa-fw aria-hidden=true></span>
{% endif %}
{{ parent_sibling.title | h }}
{% if parent_sibling.entity.logical_name == 'adx_shortcut' %}
<span class=fa fa-fw fa-external-link aria-hidden=true></span>
{% elsif parent_sibling.entity.logical_name == 'adx_webfile' %}
<span class=fa fa-fw fa-file-o aria-hidden=true><span class=sr-only>(File)</span></span>
{% endif %}
</a>
</li>
{% endif %}
{% endfor %}
{% else %}
<li>
<ul>
{% if leaf_mode %}
{% for parent_sibling in current_page.parent.parent.children %}
{% if parent_sibling.url == current_page.parent.url %}
<li>
<a href={{ current_page.parent.url | h }} title={{ current_page.parent.title | h }}>
<span class=fa fa-fw fa-caret-down aria-hidden=true></span>
{{ current_page.parent.title | h }}
</a>
<ul>
{% for sibling in current_page.parent.children %}
<li {% if sibling.url == current_page.url %}class=active{% endif %}>
<a href={{ sibling.url | h }} title={{ sibling.title | h }}>
{% if sibling.children.size > 0 %}
<span class=fa fa-fw fa-caret-right aria-hidden=true></span>
{% else %}
<span class=fa fa-fw aria-hidden=true></span>
{% endif %}
{{ sibling.title | h }}
{% if sibling.entity.logical_name == 'adx_shortcut' %}
<span class=fa fa-fw fa-external-link aria-hidden=true></span>
{% elsif sibling.entity.logical_name == 'adx_webfile' %}
<span class=fa fa-fw fa-file-o aria-hidden=true><span class=sr-only>(File)</span></span>
{% endif %}
</a>
</li>
{% endfor %}
</ul>
</li>
{% else %}
<li>
<a href={{ parent_sibling.url | h }} title={{ parent_sibling.title | h }}>
{% if parent_sibling.children.size > 0 %}
<span class=fa fa-fw fa-caret-right aria-hidden=true></span>
{% else %}
<span class=fa fa-fw aria-hidden=true></span>
{% endif %}
{{ parent_sibling.title | h }}
{% if parent_sibling.entity.logical_name == 'adx_shortcut' %}
<span class=fa fa-fw fa-external-link aria-hidden=true></span>
{% elsif parent_sibling.entity.logical_name == 'adx_webfile' %}
<span class=fa fa-fw fa-file-o aria-hidden=true><span class=sr-only>(File)</span></span>
{% endif %}
</a>
</li>
{% endif %}
{% endfor %}
{% else %}
{% for sibling in current_page.parent.children %}
{% if sibling.url == current_page.url %}
{{ page_item }}
{% else %}
<li>
<a href={{ sibling.url | h }} title={{ sibling.title | h }}>
{% if sibling.children.size > 0 %}
<span class=fa fa-fw fa-caret-right aria-hidden=true></span>
{% else %}
<span class=fa fa-fw aria-hidden=true></span>
{% endif %}
{{ sibling.title | h }}
{% if sibling.entity.logical_name == 'adx_shortcut' %}
<span class=fa fa-fw fa-external-link aria-hidden=true></span>
{% elsif sibling.entity.logical_name == 'adx_webfile' %}
<span class=fa fa-fw fa-file-o aria-hidden=true><span class=sr-only>(File)</span></span>
{% endif %}
</a>
</li>
{% endif %}
{% endfor %}
{% endif %}
</ul>
</li>
{% endif %}
</ul>
<style type=text/css>
.side-nav {
border-right: solid 1px #eee;
}
.side-nav,
.side-nav ul {
list-style: none;
margin: 0;
padding: 0;
}
.side-nav ul {
margin-left: 20px;
}
.side-nav a {
display: block;
line-height: 30px;
overflow: hidden;
text-decoration: none;
white-space: nowrap;
}
.side-nav li > a:hover {
border-right: solid 1px #23527c;
}
.side-nav li.active > a,
.side-nav li.active > a:hover {
border-right: solid 1px #333;
color: #333;
font-weight: bold;
}
</style>
另请参阅
使用 Liquid 和 Web 模板页面模板创建自定义页面模板
创建用于呈现 RSS 源的自定义页面模板
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