freedive/lib/liliform/input.ex

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Elixir
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2024-05-14 21:58:42 +02:00
defmodule Liliform.Input do
use Liliform.Component
import Liliform.Label
@doc """
Renders an input with label and error messages.
A `Phoenix.HTML.FormField` may be passed as argument,
which is used to retrieve the input name, id, and values.
Otherwise all attributes may be passed explicitly.
## Types
This function accepts all HTML input types, considering that:
* You may also set `type="select"` to render a `<select>` tag
* `type="checkbox"` is used exclusively to render boolean values
* For live file uploads, see `Phoenix.Component.live_file_input/1`
See https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input
for more information.
## Examples
<.input field={@form[:email]} type="email" />
<.input name="my-input" errors={["oh no!"]} />
"""
attr :id, :any, default: nil
attr :name, :any
attr :label, :string, default: nil
attr :value, :any
attr :type, :string,
default: "text",
values: ~w(checkbox color date datetime-local email file hidden month number password
range radio search select tel text textarea time url week)
attr :field, Phoenix.HTML.FormField,
doc: "a form field struct retrieved from the form, for example: @form[:email]"
attr :errors, :list, default: []
attr :checked, :boolean, doc: "the checked flag for checkbox inputs"
attr :prompt, :string, default: nil, doc: "the prompt for select inputs"
attr :options, :list, doc: "the options to pass to Phoenix.HTML.Form.options_for_select/2"
attr :multiple, :boolean, default: false, doc: "the multiple flag for select inputs"
attr :rest, :global,
include: ~w(accept autocomplete capture cols disabled form list max maxlength min minlength
multiple pattern placeholder readonly required rows size step)
slot :inner_block
def input(%{field: %Phoenix.HTML.FormField{} = field} = assigns) do
assigns
|> assign(field: nil, id: assigns.id || field.id)
|> assign(:errors, Enum.map(field.errors, &translate_error(&1)))
|> assign_new(:name, fn -> if assigns.multiple, do: field.name <> "[]", else: field.name end)
|> assign_new(:value, fn -> field.value end)
|> input()
end
def input(%{type: "checkbox"} = assigns) do
assigns =
assign_new(assigns, :checked, fn ->
Phoenix.HTML.Form.normalize_value("checkbox", assigns[:value])
end)
~H"""
<div class="field" phx-feedback-for={@name}>
<label class="label">
<input type="hidden" name={@name} value="false" />
<input
type="checkbox"
id={@id}
name={@name}
value="true"
checked={@checked}
class="checkbox"
{@rest}
/>
<%= @label %>
</label>
<.error :for={msg <- @errors}><%= msg %></.error>
</div>
"""
end
def input(%{type: "select"} = assigns) do
~H"""
<div class="field" phx-feedback-for={@name}>
<.label for={@id}><%= @label %></.label>
<select id={@id} name={@name} class="select" multiple={@multiple} {@rest}>
<option :if={@prompt} value=""><%= @prompt %></option>
<%= Phoenix.HTML.Form.options_for_select(@options, @value) %>
</select>
<.error :for={msg <- @errors}><%= msg %></.error>
</div>
"""
end
def input(%{type: "textarea"} = assigns) do
~H"""
<div class="field" phx-feedback-for={@name}>
<.label for={@id}><%= @label %></.label>
<textarea
id={@id}
name={@name}
class={[
"textarea",
@errors == [] && "",
@errors != [] && "is-danger"
]}
{@rest}
><%= Phoenix.HTML.Form.normalize_value("textarea", @value) %></textarea>
<.error :for={msg <- @errors}><%= msg %></.error>
</div>
"""
end
# All other inputs text, datetime-local, url, password, etc. are handled here...
def input(assigns) do
~H"""
<div class="field" phx-feedback-for={@name}>
<.label for={@id}><%= @label %></.label>
<input
type={@type}
name={@name}
id={@id}
value={Phoenix.HTML.Form.normalize_value(@type, @value)}
class={[
"input",
@errors == [] && "",
@errors != [] && "is-danger"
]}
{@rest}
/>
<.error :for={msg <- @errors}><%= msg %></.error>
</div>
"""
end
@doc """
Generates a generic error message.
"""
slot :inner_block, required: true
def error(assigns) do
~H"""
<p class="mt-3 phx-no-feedback:hidden">
<Lucideicons.circle_alert aria-hidden />
<%= render_slot(@inner_block) %>
</p>
"""
end
end