Current section

Files

Jump to
mbta_metro lib mbta_metro components modal.ex
Raw

lib/mbta_metro/components/modal.ex

defmodule MbtaMetro.Components.Modal do
@moduledoc false
use Phoenix.Component
import MbtaMetro.Components.{Button, JS}
alias Phoenix.LiveView.JS
attr :id, :string, required: true
attr :show, :boolean, default: false
attr :on_cancel, JS, default: %JS{}
slot :inner_block, required: true
@doc """
Renders a modal.
## Examples
<.modal id="confirm-modal">
This is a modal.
</.modal>
JS commands may be passed to the `:on_cancel` to configure
the closing/cancel event, for example:
<.modal id="confirm" on_cancel={JS.navigate(~p"/posts")}>
This is another modal.
</.modal>
"""
def modal(assigns) do
~H"""
<div
id={@id}
phx-mounted={@show && show_modal(@id)}
phx-remove={hide_modal(@id)}
data-cancel={JS.exec(@on_cancel, "phx-remove")}
class="relative z-50 hidden"
>
<div
id={"#{@id}-bg"}
class="bg-charcoal-50/30 fixed inset-0 transition-opacity"
aria-hidden="true"
/>
<div
class="fixed inset-0 overflow-y-auto"
aria-labelledby={"#{@id}-title"}
aria-describedby={"#{@id}-description"}
role="dialog"
aria-modal="true"
tabindex="0"
>
<div class="flex min-h-full items-center justify-center">
<div class="w-full max-w-3xl p-4 sm:p-6 lg:py-8">
<.focus_wrap
id={"#{@id}-container"}
phx-window-keydown={JS.exec("data-cancel", to: "##{@id}")}
phx-key="escape"
phx-click-away={JS.exec("data-cancel", to: "##{@id}")}
class="shadow-charcoal-30/5 ring-charcoal-30/5 relative hidden rounded bg-white p-14 shadow-lg ring-1 transition"
>
<div class="absolute top-3 right-3">
<.button phx-click={JS.exec("data-cancel", to: "##{@id}")} type="button" class="m-0">
Close
</.button>
</div>
<div id={"#{@id}-content"}>
<%= render_slot(@inner_block) %>
</div>
</.focus_wrap>
</div>
</div>
</div>
</div>
"""
end
def show_modal(js \\ %JS{}, id) when is_binary(id) do
js
|> JS.show(to: "##{id}")
|> JS.show(
to: "##{id}-bg",
transition: {"transition-all transform ease-out duration-300", "opacity-0", "opacity-100"}
)
|> show("##{id}-container")
|> JS.add_class("overflow-hidden", to: "body")
|> JS.focus_first(to: "##{id}-content")
end
def hide_modal(js \\ %JS{}, id) do
js
|> JS.hide(
to: "##{id}-bg",
transition: {"transition-all transform ease-in duration-200", "opacity-100", "opacity-0"}
)
|> hide("##{id}-container")
|> JS.hide(to: "##{id}", transition: {"block", "block", "hidden"})
|> JS.remove_class("overflow-hidden", to: "body")
|> JS.pop_focus()
end
end