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Duskmoon UI component library for Phoenix LiveView
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lib/phoenix_duskmoon/component/navigation/bottom_nav.ex
defmodule PhoenixDuskmoon.Component.Navigation.BottomNav do
@moduledoc """
Bottom navigation component using `el-dm-bottom-navigation` custom element.
Displays a fixed (or static/sticky) navigation bar at the bottom of the screen,
typically for mobile interfaces.
## Examples
<.dm_bottom_nav
value="home"
items={[
%{value: "home", label: "Home", icon: "home"},
%{value: "search", label: "Search", icon: "magnify"},
%{value: "profile", label: "Profile", icon: "account"}
]}
/>
"""
use Phoenix.Component
@doc """
Renders a bottom navigation bar.
## Examples
<.dm_bottom_nav
value="home"
items={[
%{value: "home", label: "Home", icon: "home"},
%{value: "search", label: "Search", icon: "magnify"}
]}
/>
"""
@doc type: :component
attr(:id, :any, default: nil, doc: "HTML id attribute")
attr(:class, :any, default: nil, doc: "additional CSS classes")
attr(:value, :string, default: nil, doc: "currently selected item value")
attr(:color, :string,
default: "primary",
values: ["primary", "secondary", "success", "warning", "error"],
doc: "color for active item"
)
attr(:position, :string,
default: "fixed",
values: ["fixed", "static", "sticky"],
doc: "positioning of the navigation bar"
)
attr(:items, :list,
required: true,
doc: """
List of navigation item maps. Each item should have:
- `:value` (required) - unique identifier
- `:label` (required) - display text
- `:icon` (optional) - MDI icon name (e.g., "home", "magnify")
- `:disabled` (optional) - boolean to disable item
- `:href` (optional) - URL to navigate to (renders as link instead of button)
"""
)
attr(:rest, :global)
def dm_bottom_nav(assigns) do
items_json =
assigns.items
|> Enum.map(fn item ->
case item[:icon] do
nil -> item
name when is_binary(name) -> Map.put(item, :icon, icon_svg(name))
_ -> item
end
end)
|> Jason.encode!()
assigns = assign(assigns, :items_json, items_json)
~H"""
<el-dm-bottom-navigation
id={@id}
items={@items_json}
value={@value}
color={@color}
position={@position}
class={@class}
{@rest}
>
</el-dm-bottom-navigation>
"""
end
defp icon_svg(name) when is_binary(name) do
case PhoenixDuskmoon.Component.Icon.Icons.get_mdi_svg(name) do
nil ->
""
inner ->
~s(<svg xmlns="http://www.w3.org/2000/svg" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true">#{inner}</svg>)
end
end
end