Changeset View

Standalone View

				defmodule KolabChat.Locale do
				import Plug.Conn

				def init(opts), do: opts

				def call(conn, _opts) do
				case get_session(conn, :locale) \|\| client_locale(conn) do
				nil ->
				conn
				locale ->
				Gettext.put_locale(KolabChat.Gettext, locale)
				put_session(conn, :locale, locale)
				end
				end

				# Gets supported locale code from the client
				# Uses 'locale' parameter or Accept-Language header
				defp client_locale(conn) do
				supported = Gettext.known_locales(KolabChat.Gettext)
				locale = conn.params["locale"] \|\| get_req_header(conn, "accept-language")

				locale
				\|> to_string()
				\|> String.split(",")
				\|> Enum.map(&parse_locale/1)
				\|> Enum.filter(fn(x) -> Enum.member?(supported, x) end)
				\|> Enum.at(0)
				end

				# Extracts locale code from an element of Accept-Language header
				defp parse_locale(locale) do
				locale
				\|> String.split(";")
				\|> Enum.at(0)
				\|> String.trim()
				\|> String.replace("-", "_")
				end
				end