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lib/phoenix_duskmoon/component/form/radio.ex

defmodule PhoenixDuskmoon.Component.Form.Radio do
@moduledoc """
Radio button component for single selection.
## Examples
<.dm_form for={@form} phx-submit="save">
<.dm_radio field={@form[:theme]} value="light" label="Light theme" />
<.dm_radio field={@form[:theme]} value="dark" label="Dark theme" color="secondary" />
<.dm_radio field={@form[:theme]} value="auto" label="Auto theme" size="lg" />
</.dm_form>
## Attributes
* `field` - Phoenix form field
* `value` - Radio button value
* `label` - Radio button label text
* `size` - Radio size: xs, sm, md, lg (default: md)
* `color` - Radio color: primary, secondary, accent, info, success, warning, error (default: primary)
* `disabled` - Disable the radio button
* `class` - Additional CSS classes
* `label_class` - Additional CSS classes for label
* `radio_class` - Additional CSS classes for radio element
"""
use Phoenix.Component
@doc type: :component
attr(:id, :any, default: nil)
attr(:name, :any)
attr(:value, :any)
attr(:field, Phoenix.HTML.FormField, doc: "a form field struct retrieved from the form")
attr(:checked, :boolean, default: false)
attr(:label, :string, default: nil)
attr(:size, :string, default: "md", values: ["xs", "sm", "md", "lg"])
attr(:color, :string,
default: "primary",
values: ["primary", "secondary", "accent", "info", "success", "warning", "error"]
)
attr(:disabled, :boolean, default: false)
attr(:class, :string, default: nil)
attr(:label_class, :string, default: nil)
attr(:radio_class, :string, default: nil)
attr(:rest, :global)
def dm_radio(%{field: %Phoenix.HTML.FormField{} = field} = assigns) do
assigns
|> assign(field: nil, id: assigns.id || field.id)
|> assign_new(:name, fn -> field.name end)
|> assign_new(:checked, fn -> field.value == assigns.value end)
|> dm_radio()
end
def dm_radio(assigns) do
~H"""
<div class={@class}>
<label class="flex items-center gap-2 cursor-pointer">
<input
type="radio"
name={@name}
id={@id}
value={@value}
checked={@checked}
disabled={@disabled}
class={[
"radio",
size_classes(@size),
color_classes(@color),
@disabled && "opacity-50 cursor-not-allowed",
@radio_class
]}
{@rest}
/>
<span :if={@label} class={["label-text", @label_class]}>
{@label}
</span>
</label>
</div>
"""
end
defp size_classes("xs"), do: "radio-xs"
defp size_classes("sm"), do: "radio-sm"
defp size_classes("md"), do: "radio-md"
defp size_classes("lg"), do: "radio-lg"
defp color_classes("primary"), do: "radio-primary"
defp color_classes("secondary"), do: "radio-secondary"
defp color_classes("accent"), do: "radio-accent"
defp color_classes("info"), do: "radio-info"
defp color_classes("success"), do: "radio-success"
defp color_classes("warning"), do: "radio-warning"
defp color_classes("error"), do: "radio-error"
end