Packages
phoenix_live_view
0.6.0-dev
1.2.7
1.2.6
1.2.5
1.2.4
1.2.3
1.2.2
1.2.1
1.2.0
1.2.0-rc.3
1.2.0-rc.2
1.2.0-rc.1
1.2.0-rc.0
1.1.32
1.1.31
1.1.30
1.1.29
1.1.28
1.1.27
1.1.26
1.1.25
1.1.24
1.1.23
1.1.22
1.1.21
1.1.20
1.1.19
1.1.18
1.1.17
1.1.16
1.1.15
1.1.14
1.1.13
1.1.12
1.1.11
1.1.10
1.1.9
1.1.8
1.1.7
1.1.6
retired
1.1.5
1.1.4
1.1.3
1.1.2
1.1.1
1.1.0
1.1.0-rc.4
1.1.0-rc.3
1.1.0-rc.2
1.1.0-rc.1
1.1.0-rc.0
1.0.18
1.0.17
1.0.16
1.0.15
1.0.14
1.0.13
1.0.12
1.0.11
1.0.10
1.0.9
1.0.8
retired
1.0.7
1.0.6
retired
1.0.5
1.0.4
1.0.3
1.0.2
1.0.1
1.0.0
1.0.0-rc.9
1.0.0-rc.8
1.0.0-rc.7
1.0.0-rc.6
1.0.0-rc.5
1.0.0-rc.4
1.0.0-rc.3
1.0.0-rc.2
1.0.0-rc.1
1.0.0-rc.0
0.20.17
0.20.16
0.20.15
0.20.14
0.20.13
0.20.12
0.20.11
0.20.10
0.20.9
0.20.8
0.20.7
0.20.6
0.20.5
0.20.4
0.20.3
0.20.2
0.20.1
0.20.0
0.19.5
0.19.4
0.19.3
0.19.2
0.19.1
0.19.0
0.18.18
0.18.17
0.18.16
0.18.15
0.18.14
0.18.13
0.18.12
0.18.11
0.18.10
0.18.9
0.18.8
0.18.7
0.18.6
0.18.5
0.18.4
0.18.3
0.18.2
0.18.1
0.18.0
0.17.14
0.17.13
0.17.12
0.17.11
0.17.10
0.17.9
0.17.8
0.17.7
0.17.6
0.17.5
0.17.4
0.17.3
0.17.2
0.17.1
0.17.0
0.16.4
0.16.3
0.16.2
0.16.1
0.16.0
0.15.7
0.15.6
0.15.5
0.15.4
0.15.3
0.15.2
0.15.1
0.15.0
0.14.8
0.14.7
0.14.6
0.14.5
0.14.4
0.14.3
0.14.2
0.14.1
0.14.0
0.13.3
0.13.2
0.13.1
0.13.0
0.12.1
0.12.0
0.11.1
0.11.0
0.10.0
0.9.0
0.8.1
0.8.0
0.7.1
0.7.0
0.6.0
0.6.0-dev
0.5.2
0.5.1
0.5.0
0.4.1
0.4.0
0.3.1
0.3.0
0.2.1
0.2.0
0.1.1
0.1.0
Rich, real-time user experiences with server-rendered HTML
Current section
Files
Jump to
Current section
Files
lib/phoenix_live_view/plug.ex
defmodule Phoenix.LiveView.Plug do
@moduledoc false
alias Phoenix.LiveView.Controller
@behaviour Plug
@link_header "x-requested-with"
def link_header, do: @link_header
@impl Plug
def init(view) when is_atom(view), do: view
def init({view, opts}) when is_atom(view) and is_list(opts) do
{view, __live_opts__(opts)}
end
@impl Plug
def call(%Plug.Conn{private: %{phoenix_live_view: opts}} = conn, view) when is_atom(view) do
do_call(conn, view, opts)
end
def call(%Plug.Conn{} = conn, {view, opts}) when is_atom(view) and is_list(opts) do
do_call(conn, view, opts)
end
defp do_call(conn, view, opts) do
render_opts = Keyword.take(opts, [:container, :router, :session])
if live_link?(conn) do
html = Phoenix.LiveView.Static.container_render(conn, view, render_opts)
conn
|> put_cache_headers()
|> Plug.Conn.put_resp_header(@link_header, "live-link")
|> Phoenix.Controller.html(html)
else
conn
|> put_new_layout_from_router(opts)
|> Controller.live_render(view, render_opts)
end
end
@doc false
def put_cache_headers(conn) do
conn
|> Plug.Conn.put_resp_header("vary", @link_header)
|> Plug.Conn.put_resp_header(
"cache-control",
"max-age=0, no-cache, no-store, must-revalidate, post-check=0, pre-check=0"
)
end
defp put_new_layout_from_router(conn, opts) do
cond do
live_link?(conn) -> Phoenix.Controller.put_layout(conn, false)
layout = opts[:layout] -> Phoenix.Controller.put_new_layout(conn, layout)
true -> conn
end
end
defp live_link?(%Plug.Conn{} = conn) do
Plug.Conn.get_req_header(conn, @link_header) == ["live-link"]
end
def __live_opts__(opts) do
router = Keyword.fetch!(opts, :router)
new_opts =
opts
|> Keyword.put_new_lazy(:layout, fn ->
layout_view =
router
|> Atom.to_string()
|> String.split(".")
|> Enum.drop(-1)
|> Kernel.++(["LayoutView"])
|> Module.concat()
{layout_view, :app}
end)
new_opts
end
end