54 lines
1.6 KiB
Elixir
54 lines
1.6 KiB
Elixir
defmodule Mse25Web.Breadcrumbs do
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use Mse25Web, :html
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def breadcrumbs_html(assigns) do
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~H"""
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<div class="breadcrumbs">
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<span class="sr-only">Du är här:</span>
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<span class="trail" itemscope itemtype="https://schema.org/BreadcrumbList">
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<span itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem">
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<a href="/" rel="home">
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<span itemprop="name">madr.se</span>
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</a>
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<meta itemprop="position" content="1" />
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</span>
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<%= for {index, {parent_slug, parent_name}} <- breadcrumbs(@trail) do %>
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<span class="sr-only">></span>
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<span itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem">
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<a href={parent_slug}>
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<span itemprop="name"><%= parent_name %></span>
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</a>
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<meta itemprop="position" content={index} />
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</span>
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<% end %>
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</span>
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</div>
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"""
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end
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defp breadcrumbs(nodes) do
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breadcrumbs([], "", 1, nodes)
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end
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defp breadcrumbs(seen, _path, _index, []) do
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Enum.reverse(seen)
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end
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defp breadcrumbs(seen, path, index, [{slug, name} | nodes]) do
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breadcrumbs(
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[{index + 1, {path <> "/" <> to_string(slug), name}} | seen],
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path <> "/" <> to_string(slug),
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index + 1,
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nodes
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)
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end
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defp breadcrumbs(seen, path, index, [{slug, name, custom_prefix} | nodes]) do
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breadcrumbs(
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[{index + 1, {custom_prefix <> "/" <> to_string(slug), name}} | seen],
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path <> "/" <> to_string(slug),
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index + 1,
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nodes
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)
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end
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end
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