livebook/lib/livebook_web/helpers.ex

71 lines
2.3 KiB
Elixir

defmodule LivebookWeb.Helpers do
import Phoenix.LiveView.Helpers
import Phoenix.HTML.Tag
@doc """
Renders a component inside the `Livebook.ModalComponent` component.
The rendered modal receives a `:return_to` option to properly update
the URL when the modal is closed.
"""
def live_modal(socket, component, opts) do
path = Keyword.fetch!(opts, :return_to)
modal_opts = [id: :modal, return_to: path, component: component, opts: opts]
live_component(socket, LivebookWeb.ModalComponent, modal_opts)
end
@doc """
Determines user platform based on the given *User-Agent* header.
"""
@spec platform_from_user_agent(String.t()) :: :linux | :mac | :windows | :other
def platform_from_user_agent(user_agent) when is_binary(user_agent) do
cond do
linux?(user_agent) -> :linux
mac?(user_agent) -> :mac
windows?(user_agent) -> :windows
true -> :other
end
end
defp linux?(user_agent), do: String.match?(user_agent, ~r/Linux/)
defp mac?(user_agent), do: String.match?(user_agent, ~r/Mac OS X/)
defp windows?(user_agent), do: String.match?(user_agent, ~r/Windows/)
@doc """
Returns [Remix](https://remixicon.com) icon tag.
"""
def remix_icon(name, attrs \\ []) do
icon_class = "ri-#{name}"
attrs = Keyword.update(attrs, :class, icon_class, fn class -> "#{icon_class} #{class}" end)
content_tag(:i, "", attrs)
end
defdelegate ansi_string_to_html(string, opts \\ []), to: LivebookWeb.ANSI
@doc """
Converts a string with ANSI escape codes into HTML lines.
This method is similar to `ansi_string_to_html/2`,
but makes sure each line is itself a valid HTML
(as opposed to just splitting HTML into lines).
"""
@spec ansi_to_html_lines(String.t()) :: list(Phoenix.HTML.safe())
def ansi_to_html_lines(string) do
string
|> ansi_string_to_html(
# Make sure every line is styled separately,
# so that later we can safely split the whole HTML
# into valid HTML lines.
renderer: fn style, content ->
content
|> IO.iodata_to_binary()
|> String.split("\n")
|> Enum.map(&LivebookWeb.ANSI.default_renderer(style, &1))
|> Enum.intersperse("\n")
end
)
|> Phoenix.HTML.safe_to_string()
|> String.split("\n")
|> Enum.map(&Phoenix.HTML.raw/1)
end
end