livebook/lib/livebook_web/live/js_view_component.ex

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Elixir
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defmodule LivebookWeb.JSViewComponent do
use LivebookWeb, :live_component
@impl true
def render(assigns) do
~H"""
<div id={"js-output-#{@id}-#{@js_view.ref}"}
phx-hook="JSView"
phx-update="ignore"
data-ref={@js_view.ref}
data-assets-base-path={Routes.session_path(@socket, :show_asset, @session_id, @js_view.assets.hash, [])}
data-js-path={@js_view.assets.js_path}
data-session-token={session_token(@js_view.pid)}
data-session-id={@session_id}
data-iframe-local-port={LivebookWeb.IframeEndpoint.port()}>
</div>
"""
end
defp session_token(pid) do
Phoenix.Token.sign(LivebookWeb.Endpoint, "js view", %{pid: pid})
end
end