67 lines
1.9 KiB
Elixir
67 lines
1.9 KiB
Elixir
defmodule Heroicons do
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@moduledoc """
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This library provides functions for every [Heroicon](https://github.com/tailwindlabs/heroicons).
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See `Heroicons.Outline` and `Heroicons.Solid` for the two styles of icon.
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Heroicons are designed by [Steve Schoger](https://twitter.com/steveschoger)
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"""
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@doc false
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defmacro __before_compile__(%Macro.Env{module: module}) do
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unless Module.has_attribute?(module, :icon_dir) do
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raise CompileError, description: "@icon_dir attrubute is required"
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end
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icon_dir = Module.get_attribute(module, :icon_dir)
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default_attrs = Module.get_attribute(module, :default_attrs)
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icon_paths =
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Path.absname(icon_dir, :code.priv_dir(:heroicons))
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|> Path.join("*.svg")
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|> Path.wildcard()
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for path <- icon_paths do
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generate_function(path, default_attrs)
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end
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end
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@doc false
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def generate_function(path, default_attrs) do
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name =
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Path.basename(path, ".svg")
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|> String.replace("-", "_")
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|> String.to_atom()
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icon = File.read!(path)
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{i, _} = :binary.match(icon, ">")
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{_, body} = String.split_at(icon, i)
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doc = """
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)}) {: width=24px}
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## Examples
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iex> #{name}()
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iex> #{name}(class: "h-6 w-6 text-gray-500")
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"""
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quote do
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@doc unquote(doc)
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@spec unquote(name)(keyword(binary)) :: binary
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def unquote(name)(opts \\ []) do
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opts = Keyword.merge(unquote(default_attrs), opts)
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attrs =
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for {k, v} <- opts do
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safe_k =
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k |> Atom.to_string() |> String.replace("_", "-") |> Phoenix.HTML.Safe.to_iodata()
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safe_v = v |> Phoenix.HTML.Safe.to_iodata()
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{:safe, [?\s, safe_k, ?=, ?", safe_v, ?"]}
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end
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{:safe, ["<svg", Phoenix.HTML.Safe.to_iodata(attrs), unquote(body)]}
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end
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end
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end
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end
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