92 lines
2.4 KiB
Elixir
92 lines
2.4 KiB
Elixir
defmodule Heroicons.Generator do
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alias Heroicons.SvgProcessor
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defmacro __using__(icon_dir: icon_dir, svg_opts: svg_opts) do
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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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require Phoenix.Component
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if function_exported?(Phoenix.Component, :assigns_to_attributes, 2) do
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Module.put_attribute(__CALLER__.module, :assign_mod, Phoenix.Component)
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Module.put_attribute(__CALLER__.module, :assigns_to_attrs_mod, Phoenix.Component)
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else
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Module.put_attribute(__CALLER__.module, :assign_mod, Phoenix.LiveView)
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Module.put_attribute(__CALLER__.module, :assigns_to_attrs_mod, Phoenix.LiveView.Helpers)
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end
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for path <- icon_paths do
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generate(path, svg_opts)
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end
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end
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@doc false
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def generate(path, svg_opts) 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 =
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File.read!(path)
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|> SvgProcessor.process(svg_opts)
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<<"<svg", body::binary>> = icon
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head = "<svg "
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doc = """
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)}) {: width=24px}
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## Examples
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Use as a `Phoenix.Component`
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<.#{name} />
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<.#{name} class="h-6 w-6 text-gray-500" />
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or as a function
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<%= #{name}() %>
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<%= #{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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def unquote(name)(assigns_or_opts \\ [])
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def unquote(name)(var!(assigns)) when is_map(var!(assigns)) do
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var!(attrs) = @assigns_to_attrs_mod.assigns_to_attributes(var!(assigns))
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var!(assigns) = @assign_mod.assign(var!(assigns), :attrs, var!(attrs))
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unquote(
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EEx.compile_string(head <> "{@attrs}" <> body,
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engine: Phoenix.LiveView.HTMLEngine,
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file: __ENV__.file,
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line: __ENV__.line + 1,
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module: __ENV__.module,
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indentation: 0
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)
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)
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end
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def unquote(name)(opts) when is_list(opts) do
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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, [unquote(head), 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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