Breadcrumbs

{% comment %}
	Outputs a single page AND it's parent pages in the breadcrumbs.
	This template is recursive so that each link can have a parent and the top-most parent is output first.

	Inputs:
		link - The page to display
		max_depth - The maximum number of links to be output. Defaults to 5
		is_current - True if link is the current page

	Note: Each link is expected to have a parent_page property unless it is the root page for the breadcrumbs
{% endcomment -%}
{%- if link.is_valid -%}
	{%- var max_depth = max_depth | to_int | default: 5 | at_most: 10 -%}
	{%- if max_depth > 0 and link.parent_page is_valid -%}
		{%- var next_depth = max_depth | minus: 1 -%}
		{%- include '_breadcrumb_link.liquid' link:link.parent_page max_depth:next_depth is_current:false -%}
	{%- endif -%}
	<li class="breadcrumb-item{% if is_current %} active" aria-current="page{% endif %}">
		{%- if is_current -%}
			{{link.title}}
		{%- else -%}
			<a href="{{link.full_url}}">{{link.title}}</a>
		{%- endif -%}
	</li>
{%- endif -%}

{% comment %}
	Renders a breadcrumb trail (home > parent > current), but requires that every page on the site define it's parent page.

	Inputs:
		max_depth - The maximum number of links to be output. Defaults to 5

	Custom Fields:
		show_breadcrumbs
		parent_page (recommended even if show_breadcrumbs is off so that the breadcrumb trail still works for child pages)
{% endcomment -%}
{%- if entity.show_breadcrumbs.on and entity.parent_page.is_valid -%}
	<nav aria-label="Breadcrumb">
		<ol class="breadcrumb">
			{%- include "_breadcrumb_link.liquid" link:entity is_current:true -%}
		</ol>
	</nav>
{%- endif -%}

[
  {
    "Type": "group",
    "Fields": [
      {
        "Type": "toggle",
        "DefaultValue": true,
        "FieldID": "show_breadcrumbs",
        "Label": "Show Breadcrumbs",
        "OnValue": "show",
        "OffValue": "hide",
        "OnColor": "green",
        "OffColor": "red",
        "OnLabel": "Show",
        "OffLabel": "Hide"
      },
      {
        "Type": "entity",
        "HasUrl": true,
        "FieldID": "parent_page",
        "Label": "Parent Page (for breadcrumb link)"
      }
    ],
    "Label": "Breadcrumbs"
  }
]