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priv/popover-reference/app.exs
#!/usr/bin/env elixir
# Popover reference conformance fixture.
# Dogfoods the SHIPPED component (lib/.../components/popover.ex) and the SHIPPED hook
# (priv/static/lic_hooks.js) — the conformance suite tests the real artifacts, not a
# re-implementation.
# Run: elixir app.exs (http://127.0.0.1:4129)
Mix.install([
{:phoenix, "~> 1.8"},
{:phoenix_live_view, "~> 1.1"},
{:bandit, "~> 1.7"},
{:jason, "~> 1.4"}
])
Application.put_env(:phoenix, :json_library, Jason)
# Load the real shipped component. Compiling it extracts its colocated hook
# (the shipped client JS) into this fixture's own build path; ColocatedAssets.compile()
# then writes the index.js manifest — the same artifact-producing pipeline a consumer's
# `mix compile` runs. The fixture serves that output at /colocated and imports it as a
# real ES module, so the conformance suite tests the true shipped artifact under the
# exact LiveView version being swept (no cross-version reuse of repo _build output).
Code.require_file(Path.join(__DIR__, "../../lib/live_interaction_contracts/components/popover.ex"))
Phoenix.LiveView.ColocatedAssets.compile()
colocated_dir =
Path.join([Mix.Project.build_path(), "phoenix-colocated", to_string(Mix.Project.config()[:app] || "")])
Application.put_env(:pr, :colocated_dir, colocated_dir)
Application.put_env(:pr, PRWeb.Endpoint,
http: [ip: {127, 0, 0, 1}, port: 4129],
server: true,
adapter: Bandit.PhoenixAdapter,
live_view: [signing_salt: "popover-ref-salt"],
secret_key_base: String.duplicate("popover-reference-secret!", 4),
pubsub_server: PR.PubSub,
check_origin: false,
debug_errors: true
)
defmodule PRWeb.Layout do
use Phoenix.Component
@phoenix_js File.read!(Application.app_dir(:phoenix, "priv/static/phoenix.min.js"))
@lv_js File.read!(Application.app_dir(:phoenix_live_view, "priv/static/phoenix_live_view.min.js"))
def render("root.html", assigns) do
assigns = assign(assigns, phoenix_js: @phoenix_js, lv_js: @lv_js)
~H"""
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="csrf-token" content={Phoenix.Controller.get_csrf_token()} />
<title>Popover reference</title>
<script><%= Phoenix.HTML.raw(@phoenix_js) %></script>
<script><%= Phoenix.HTML.raw(@lv_js) %></script>
<script type="module">
import { hooks } from "/colocated/index.js";
const csrf = document.querySelector("meta[name='csrf-token']").getAttribute("content");
const ls = new LiveView.LiveSocket("/live", Phoenix.Socket, { hooks, params: {_csrf_token: csrf} });
ls.connect();
window.liveSocket = ls;
</script>
</head>
<body><%= @inner_content %></body>
</html>
"""
end
end
defmodule PRWeb.MainLive do
use Phoenix.LiveView
import LiveInteractionContracts.Components.Popover
def mount(_p, _s, socket),
do: {:ok, assign(socket, content: 0, attr: 0, sib: 0, trig: 0, spacer: 40, observed: [])}
def render(assigns) do
~H"""
<main>
<div id="spacer" style={"height: #{@spacer}px"}></div>
<.popover id="pop" role="menu" mode="auto" on_open_change="toggled" placement="bottom" data-rev={@attr}>
<:trigger>Open ({@trig})</:trigger>
<:content>
<p id="pop-body" style="height: 96px; margin: 0">item {@content}</p>
</:content>
</.popover>
<%!-- 260px of room above so placement="top" genuinely fits (otherwise
flip-block correctly flips it below and the test would measure the
fallback, not the preset — WebKit's taller text rendering caught this) --%>
<div style="height: 260px"></div>
<.popover id="pop2" role="menu" mode="manual" placement="top">
<:trigger>top-anchored</:trigger>
<:content><p style="height: 48px; margin: 0">two</p></:content>
</.popover>
<div id="sib">sib {@sib}</div>
<div id="observed-json">{Jason.encode!(@observed)}</div>
<button id="btn-content" phx-click="content">patch content</button>
<button id="btn-attr" phx-click="attr">patch attr</button>
<button id="btn-sib" phx-click="sib">patch sibling</button>
<button id="btn-trig" phx-click="trig">patch trigger label</button>
<button id="btn-move" phx-click="move">move anchor (+150)</button>
<button id="btn-bottom" phx-click="bottom">anchor to viewport bottom</button>
<button id="btn-reset" phx-click="reset">reset spacer</button>
<div style="height: 1200px"></div>
</main>
"""
end
def handle_event("content", _, s), do: {:noreply, assign(s, content: s.assigns.content + 1)}
def handle_event("attr", _, s), do: {:noreply, assign(s, attr: s.assigns.attr + 1)}
def handle_event("sib", _, s), do: {:noreply, assign(s, sib: s.assigns.sib + 1)}
def handle_event("trig", _, s), do: {:noreply, assign(s, trig: s.assigns.trig + 1)}
def handle_event("move", _, s), do: {:noreply, assign(s, spacer: s.assigns.spacer + 150)}
def handle_event("bottom", _, s), do: {:noreply, assign(s, spacer: 638)}
def handle_event("reset", _, s), do: {:noreply, assign(s, spacer: 40)}
# Lossy observation: append only, never authoritative.
def handle_event("toggled", %{"open" => open}, s),
do: {:noreply, update(s, :observed, &(&1 ++ [open]))}
end
defmodule PRWeb.Router do
use Phoenix.Router
import Phoenix.LiveView.Router
pipeline :browser do
plug :accepts, ["html"]
plug :fetch_session
plug :protect_from_forgery
plug :put_root_layout, html: {PRWeb.Layout, :root}
end
scope "/" do
pipe_through :browser
live "/", PRWeb.MainLive
end
end
defmodule PRWeb.Endpoint do
use Phoenix.Endpoint, otp_app: :pr
@session_options [store: :cookie, key: "_pr_key", signing_salt: "popoverref", same_site: "Lax"]
socket "/live", Phoenix.LiveView.Socket, websocket: [connect_info: [session: @session_options]]
plug Plug.Static,
at: "/colocated",
from: Application.compile_env!(:pr, :colocated_dir),
gzip: false
plug Plug.Session, @session_options
plug PRWeb.Router
end
{:ok, _} = Supervisor.start_link([{Phoenix.PubSub, name: PR.PubSub}, PRWeb.Endpoint], strategy: :one_for_one)
IO.puts("VERSIONS phoenix=#{Application.spec(:phoenix, :vsn)} live_view=#{Application.spec(:phoenix_live_view, :vsn)} elixir=#{System.version()} otp=#{System.otp_release()}")
IO.puts("READY http://127.0.0.1:4129")
Process.sleep(:infinity)