541 lines
15 KiB
Elixir
541 lines
15 KiB
Elixir
defmodule ComfycampWeb.CoreComponents do
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@moduledoc """
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Provides core UI components.
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At first glance, this module may seem daunting, but its goal is to provide
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core building blocks for your application, such as modals, tables, and
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forms. The components consist mostly of markup and are well-documented
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with doc strings and declarative assigns. You may customize and style
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them in any way you want, based on your application growth and needs.
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The default components use Tailwind CSS, a utility-first CSS framework.
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See the [Tailwind CSS documentation](https://tailwindcss.com) to learn
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how to customize them or feel free to swap in another framework altogether.
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Icons are provided by [heroicons](https://heroicons.com). See `icon/1` for usage.
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"""
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use Phoenix.Component
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alias Phoenix.LiveView.JS
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import ComfycampWeb.Gettext
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import ComfycampWeb.Icons
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@doc """
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Renders a modal.
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## Examples
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<.modal id="confirm-modal">
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This is a modal.
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</.modal>
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JS commands may be passed to the `:on_cancel` to configure
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the closing/cancel event, for example:
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<.modal id="confirm" on_cancel={JS.navigate(~p"/posts")}>
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This is another modal.
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</.modal>
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"""
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attr :id, :string, required: true
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attr :show, :boolean, default: false
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attr :on_cancel, JS, default: %JS{}
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slot :inner_block, required: true
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def modal(assigns) do
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~H"""
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<div
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id={@id}
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phx-mounted={@show && show_modal(@id)}
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phx-remove={hide_modal(@id)}
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data-cancel={JS.exec(@on_cancel, "phx-remove")}
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class="modal"
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>
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<div id={"#{@id}-bg"} class="modal-bg" aria-hidden="true" />
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<div
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class="modal-body"
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aria-labelledby={"#{@id}-title"}
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aria-describedby={"#{@id}-description"}
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role="dialog"
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aria-modal="true"
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tabindex="0"
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>
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<.focus_wrap
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id={"#{@id}-container"}
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phx-window-keydown={JS.exec("data-cancel", to: "##{@id}")}
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phx-key="escape"
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phx-click-away={JS.exec("data-cancel", to: "##{@id}")}
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class="modal-container"
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>
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<div class="modal-close-button-container">
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<button
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phx-click={JS.exec("data-cancel", to: "##{@id}")}
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type="button"
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class="modal-close-button"
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aria-label={gettext("close")}
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>
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<.icon name="hero-x-mark-solid" class="modal-close-button-icon" />
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</button>
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</div>
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<div id={"#{@id}-content"}>
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<%= render_slot(@inner_block) %>
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</div>
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</.focus_wrap>
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</div>
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</div>
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"""
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end
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@doc """
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Renders a simple form.
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## Examples
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<.simple_form for={@form} phx-change="validate" phx-submit="save">
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<.input field={@form[:email]} label="Email"/>
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<.input field={@form[:username]} label="Username" />
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<:actions>
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<.button>Save</.button>
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</:actions>
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</.simple_form>
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"""
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attr :for, :any, required: true, doc: "the datastructure for the form"
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attr :as, :any, default: nil, doc: "the server side parameter to collect all input under"
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attr :rest, :global,
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include: ~w(autocomplete name rel action enctype method novalidate target multipart),
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doc: "the arbitrary HTML attributes to apply to the form tag"
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slot :inner_block, required: true
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slot :actions, doc: "the slot for form actions, such as a submit button"
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def simple_form(assigns) do
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~H"""
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<.form :let={f} for={@for} as={@as} {@rest}>
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<div class="simple-form">
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<%= render_slot(@inner_block, f) %>
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<div :for={action <- @actions} class="simple-form-action">
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<%= render_slot(action, f) %>
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</div>
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</div>
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</.form>
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"""
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end
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@doc """
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Renders a button.
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## Examples
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<.button>Send!</.button>
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<.button phx-click="go" class="ml-2">Send!</.button>
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"""
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attr :type, :string, default: nil
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attr :class, :string, default: nil
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attr :rest, :global, include: ~w(disabled form name value)
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slot :inner_block, required: true
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def button(assigns) do
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~H"""
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<button
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type={@type}
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class={[
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"button",
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@class
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]}
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{@rest}
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>
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<%= render_slot(@inner_block) %>
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</button>
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"""
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end
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@doc """
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Renders an input with label and error messages.
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A `Phoenix.HTML.FormField` may be passed as argument,
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which is used to retrieve the input name, id, and values.
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Otherwise all attributes may be passed explicitly.
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## Types
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This function accepts all HTML input types, considering that:
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* You may also set `type="select"` to render a `<select>` tag
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* `type="checkbox"` is used exclusively to render boolean values
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* For live file uploads, see `Phoenix.Component.live_file_input/1`
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See https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input
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for more information. Unsupported types, such as hidden and radio,
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are best written directly in your templates.
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## Examples
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<.input field={@form[:email]} type="email" />
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<.input name="my-input" errors={["oh no!"]} />
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"""
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attr :id, :any, default: nil
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attr :name, :any
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attr :label, :string, default: nil
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attr :value, :any
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attr :type, :string,
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default: "text",
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values: ~w(checkbox color date datetime-local email file month number password
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range search select tel text textarea time url week)
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attr :field, Phoenix.HTML.FormField,
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doc: "a form field struct retrieved from the form, for example: @form[:email]"
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attr :errors, :list, default: []
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attr :checked, :boolean, doc: "the checked flag for checkbox inputs"
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attr :prompt, :string, default: nil, doc: "the prompt for select inputs"
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attr :options, :list, doc: "the options to pass to Phoenix.HTML.Form.options_for_select/2"
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attr :multiple, :boolean, default: false, doc: "the multiple flag for select inputs"
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attr :rest, :global,
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include: ~w(accept autocomplete capture cols disabled form list max maxlength min minlength
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multiple pattern placeholder readonly required rows size step)
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slot :inner_block
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def input(%{field: %Phoenix.HTML.FormField{} = field} = assigns) do
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assigns
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|> assign(field: nil, id: assigns.id || field.id)
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|> assign(:errors, Enum.map(field.errors, &translate_error(&1)))
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|> assign_new(:name, fn -> if assigns.multiple, do: field.name <> "[]", else: field.name end)
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|> assign_new(:value, fn -> field.value end)
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|> input()
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end
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def input(%{type: "checkbox"} = assigns) do
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assigns =
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assign_new(assigns, :checked, fn ->
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Phoenix.HTML.Form.normalize_value("checkbox", assigns[:value])
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end)
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~H"""
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<div phx-feedback-for={@name}>
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<label class="checkbox-label">
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<input type="hidden" name={@name} value="false" />
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<input
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type="checkbox"
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id={@id}
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name={@name}
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value="true"
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checked={@checked}
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class="checkbox-input"
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{@rest}
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/>
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<%= @label %>
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</label>
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<.error :for={msg <- @errors}><%= msg %></.error>
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</div>
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"""
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end
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def input(%{type: "select"} = assigns) do
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~H"""
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<div phx-feedback-for={@name}>
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<.label for={@id}><%= @label %></.label>
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<select id={@id} name={@name} class="select" multiple={@multiple} {@rest}>
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<option :if={@prompt} value=""><%= @prompt %></option>
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<%= Phoenix.HTML.Form.options_for_select(@options, @value) %>
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</select>
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<.error :for={msg <- @errors}><%= msg %></.error>
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</div>
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"""
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end
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def input(%{type: "textarea"} = assigns) do
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~H"""
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<div phx-feedback-for={@name}>
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<.label for={@id}><%= @label %></.label>
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<textarea
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id={@id}
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name={@name}
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class={[
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"textarea",
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@errors == [] && "",
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@errors != [] && ""
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]}
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{@rest}
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><%= Phoenix.HTML.Form.normalize_value("textarea", @value) %></textarea>
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<.error :for={msg <- @errors}><%= msg %></.error>
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</div>
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"""
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end
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# All other inputs text, datetime-local, url, password, etc. are handled here...
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def input(assigns) do
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~H"""
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<div phx-feedback-for={@name}>
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<.label for={@id}><%= @label %></.label>
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<input
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type={@type}
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name={@name}
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id={@id}
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value={Phoenix.HTML.Form.normalize_value(@type, @value)}
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class={[
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"input",
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@errors == [] && "",
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@errors != [] && ""
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]}
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{@rest}
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/>
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<.error :for={msg <- @errors}><%= msg %></.error>
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</div>
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"""
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end
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@doc """
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Renders a label.
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"""
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attr :for, :string, default: nil
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slot :inner_block, required: true
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def label(assigns) do
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~H"""
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<label for={@for} class="label">
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<%= render_slot(@inner_block) %>
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</label>
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"""
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end
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@doc """
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Generates a generic error message.
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"""
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slot :inner_block, required: true
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def error(assigns) do
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~H"""
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<p class="error">
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<.icon name="hero-exclamation-circle-mini" class="mt-0.5 h-5 w-5 flex-none" />
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<%= render_slot(@inner_block) %>
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</p>
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"""
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end
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@doc """
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Renders a header with title.
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"""
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attr :class, :string, default: nil
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slot :inner_block, required: true
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slot :subtitle
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slot :actions
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def header(assigns) do
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~H"""
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<header class={[@actions != [] && "flex items-center justify-between gap-6", @class]}>
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<div>
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<h1 class="text-lg font-semibold leading-8 text-zinc-800">
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<%= render_slot(@inner_block) %>
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</h1>
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<p :if={@subtitle != []} class="mt-2 text-sm leading-6 text-zinc-600">
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<%= render_slot(@subtitle) %>
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</p>
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</div>
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<div class="flex-none"><%= render_slot(@actions) %></div>
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</header>
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"""
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end
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@doc ~S"""
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Renders a table with generic styling.
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## Examples
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<.table id="users" rows={@users}>
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<:col :let={user} label="id"><%= user.id %></:col>
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<:col :let={user} label="username"><%= user.username %></:col>
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</.table>
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"""
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attr :id, :string, required: true
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attr :rows, :list, required: true
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attr :row_id, :any, default: nil, doc: "the function for generating the row id"
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attr :row_click, :any, default: nil, doc: "the function for handling phx-click on each row"
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attr :row_item, :any,
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default: &Function.identity/1,
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doc: "the function for mapping each row before calling the :col and :action slots"
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slot :col, required: true do
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attr :label, :string
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end
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slot :action, doc: "the slot for showing user actions in the last table column"
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def table(assigns) do
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assigns =
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with %{rows: %Phoenix.LiveView.LiveStream{}} <- assigns do
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assign(assigns, row_id: assigns.row_id || fn {id, _item} -> id end)
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end
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~H"""
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<div class="table-container">
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<table class="table">
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<thead class="thead">
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<tr>
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<th :for={col <- @col} class="th"><%= col[:label] %></th>
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<th :if={@action != []} class="th-actions">
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<span class="sr-only"><%= gettext("Actions") %></span>
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</th>
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</tr>
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</thead>
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<tbody
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id={@id}
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phx-update={match?(%Phoenix.LiveView.LiveStream{}, @rows) && "stream"}
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class="tbody"
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>
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<tr :for={row <- @rows} id={@row_id && @row_id.(row)} class="">
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<td
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:for={{col, i} <- Enum.with_index(@col)}
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phx-click={@row_click && @row_click.(row)}
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class={["td", @row_click && "hover:cursor-pointer"]}
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>
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<div class="block py-4 pr-6">
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<span class="absolute -inset-y-px right-0 -left-4 group-hover:bg-zinc-50 sm:rounded-l-xl" />
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<span class={["relative", i == 0 && "font-semibold text-zinc-900"]}>
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<%= render_slot(col, @row_item.(row)) %>
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</span>
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</div>
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</td>
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<td :if={@action != []} class="relative w-14 p-0">
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<div class="relative whitespace-nowrap py-4 text-right text-sm font-medium">
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<span class="absolute -inset-y-px -right-4 left-0 group-hover:bg-zinc-50 sm:rounded-r-xl" />
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<span
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:for={action <- @action}
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class="relative ml-4 font-semibold leading-6 text-zinc-900 hover:text-zinc-700"
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>
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<%= render_slot(action, @row_item.(row)) %>
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</span>
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</div>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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"""
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end
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@doc """
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Renders a data list.
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## Examples
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<.list>
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<:item title="Title"><%= @post.title %></:item>
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<:item title="Views"><%= @post.views %></:item>
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</.list>
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"""
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slot :item, required: true do
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attr :title, :string, required: true
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end
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def list(assigns) do
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~H"""
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<div class="list">
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<dl class="list-description">
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<div :for={item <- @item} class="list-item">
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<dt class="list-item-title"><%= item.title %></dt>
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<dd class="list-item-description"><%= render_slot(item) %></dd>
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</div>
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</dl>
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</div>
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"""
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end
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@doc """
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Renders a back navigation link.
|
|
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|
## Examples
|
|
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<.back navigate={~p"/posts"}>Back to posts</.back>
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"""
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attr :navigate, :any, required: true
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slot :inner_block, required: true
|
|
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def back(assigns) do
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~H"""
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<div class="mt-16">
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<.link navigate={@navigate} class="back-nav-link">
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<.icon name="hero-arrow-left-solid" class="h-3 w-3" />
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<%= render_slot(@inner_block) %>
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</.link>
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</div>
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"""
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end
|
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## JS Commands
|
|
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def show(js \\ %JS{}, selector) do
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JS.show(js,
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to: selector,
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transition: "show"
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)
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end
|
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def hide(js \\ %JS{}, selector) do
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JS.hide(js,
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to: selector,
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time: 200,
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transition: "hide"
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)
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end
|
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|
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def show_modal(js \\ %JS{}, id) when is_binary(id) do
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js
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|> JS.show(to: "##{id}")
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|> JS.show(
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to: "##{id}-bg",
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transition: "show-modal"
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)
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|> show("##{id}-container")
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|> JS.add_class("overflow-hidden", to: "body")
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|> JS.focus_first(to: "##{id}-content")
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end
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|
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def hide_modal(js \\ %JS{}, id) do
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js
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|> JS.hide(
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to: "##{id}-bg",
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transition: "hide-modal"
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)
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|> hide("##{id}-container")
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|> JS.hide(to: "##{id}", transition: {"block", "block", "hidden"})
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|> JS.remove_class("overflow-hidden", to: "body")
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|> JS.pop_focus()
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end
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|
|
@doc """
|
|
Translates an error message using gettext.
|
|
"""
|
|
def translate_error({msg, opts}) do
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# When using gettext, we typically pass the strings we want
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# to translate as a static argument:
|
|
#
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# # Translate the number of files with plural rules
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# dngettext("errors", "1 file", "%{count} files", count)
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#
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# However the error messages in our forms and APIs are generated
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# dynamically, so we need to translate them by calling Gettext
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# with our gettext backend as first argument. Translations are
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# available in the errors.po file (as we use the "errors" domain).
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if count = opts[:count] do
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Gettext.dngettext(ComfycampWeb.Gettext, "errors", msg, msg, count, opts)
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else
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Gettext.dgettext(ComfycampWeb.Gettext, "errors", msg, opts)
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end
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end
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@doc """
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Translates the errors for a field from a keyword list of errors.
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"""
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def translate_errors(errors, field) when is_list(errors) do
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for {^field, {msg, opts}} <- errors, do: translate_error({msg, opts})
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end
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end
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