phx update

lib/homepage_web/components/helper_components.ex

@@ -0,0 +1,63 @@
+defmodule HomepageWeb.HelperComponents do
+  use HomepageWeb, :html
+
+  slot :label, required: true
+  slot :entry, default: []
+  def dropdown(assigns) do
+    ~H"""
+    <div class="dropdown dropdown-end">
+      <label tabindex="0" class="btn btn-ghost m-1">
+        <%= render_slot(@label) %>
+      </label>
+      <ul tabindex="0" 
+        class="dropdown-content menu p-2 shadow rounded-box">
+        <li :for={ent <- @entry}>
+          <%= render_slot(ent) %>
+        </li>
+      </ul>
+    </div>
+    """ 
+  end
+
+  slot :inner_block, required: true
+  def markdown(assigns) do
+    ~H"""
+    <%= render_slot(@inner_block)
+        |> slot_markdown_as_html()
+        |> raw()
+    %>
+    """
+  end
+
+  defp slot_markdown_as_html(%{dynamic: dynamic_slot, static: ["", ""]}) do
+    [slot] = dynamic_slot.(false)
+    slot |> slot_markdown_as_html()
+  end
+  
+  defp slot_markdown_as_html(rendered_slot) do
+    %{static: [markdown]} = rendered_slot 
+
+    trim_leading_space(markdown)
+    |> String.replace(~S("\""), ~S("""), global: true)    
+    |> Earmark.as_html!(compact_output: true)
+  end
+
+  defp trim_leading_space(markdown) do
+    lines =
+      markdown
+      |> String.split("\n")
+      |> Enum.drop_while(fn str -> String.trim(str) == "" end)
+
+    case lines do
+      [first | _] ->
+        [space] = Regex.run(~r/^\s*/, first)
+
+        lines
+        |> Enum.map(fn line -> String.replace_prefix(line, space, "") end)
+        |> Enum.join("\n")
+
+      _ ->
+        ""
+    end
+  end
+end