Class: IsolateAssets::Assets

Inherits:
Object
  • Object
show all
Defined in:
lib/isolate_assets/assets.rb

Constant Summary collapse

ASSET_DIRECTORIES = 
{
  "js" => "javascripts",
  "javascript" => "javascripts",
  "css" => "stylesheets",
  "stylesheet" => "stylesheets",
  "png" => "images",
  "jpg" => "images",
  "jpeg" => "images",
  "gif" => "images",
  "svg" => "images",
  "webp" => "images",
  "ico" => "images",
  "woff" => "fonts",
  "woff2" => "fonts",
  "ttf" => "fonts",
  "otf" => "fonts",
  "eot" => "fonts",
  "mp3" => "audio",
  "ogg" => "audio",
  "wav" => "audio",
  "mp4" => "video",
  "webm" => "video",
  "ogv" => "video"
}.freeze
CONTENT_TYPES = 
{
  "js" => "application/javascript",
  "javascript" => "application/javascript",
  "css" => "text/css",
  "stylesheet" => "text/css",
  "png" => "image/png",
  "jpg" => "image/jpeg",
  "jpeg" => "image/jpeg",
  "gif" => "image/gif",
  "svg" => "image/svg+xml",
  "webp" => "image/webp",
  "ico" => "image/x-icon",
  "woff" => "font/woff",
  "woff2" => "font/woff2",
  "ttf" => "font/ttf",
  "otf" => "font/otf",
  "eot" => "application/vnd.ms-fontobject",
  "mp3" => "audio/mpeg",
  "ogg" => "audio/ogg",
  "wav" => "audio/wav",
  "mp4" => "video/mp4",
  "webm" => "video/webm",
  "ogv" => "video/ogg"
}.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(engine:, assets_subdir: "assets", route_name: :isolated_asset, url_helpers: nil) ⇒ Assets

Returns a new instance of Assets.



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# File 'lib/isolate_assets/assets.rb', line 58

def initialize(engine:, assets_subdir: "assets", route_name: :isolated_asset, url_helpers: nil)
  @engine = engine
  @assets_subdir = assets_subdir
  @route_name = route_name
  @url_helpers = url_helpers || -> { engine.routes.url_helpers }
  @fingerprints = {}
end

Instance Attribute Details

#assets_subdir ⇒ Object (readonly)

Returns the value of attribute assets_subdir.



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# File 'lib/isolate_assets/assets.rb', line 5

def assets_subdir
  @assets_subdir
end

#controller ⇒ Object

Returns the value of attribute controller.



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# File 'lib/isolate_assets/assets.rb', line 6

def controller
  @controller
end

#engine ⇒ Object (readonly)

Returns the value of attribute engine.



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# File 'lib/isolate_assets/assets.rb', line 5

def engine
  @engine
end

#route_name ⇒ Object (readonly)

Returns the value of attribute route_name.



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# File 'lib/isolate_assets/assets.rb', line 5

def route_name
  @route_name
end

Instance Method Details

#asset_path(source, type) ⇒ Object 



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# File 'lib/isolate_assets/assets.rb', line 72

def asset_path(source, type)
  directory = ASSET_DIRECTORIES[type.to_s]
  return nil unless directory

  normalized = normalize_type(type)
  engine.root.join("app/#{assets_subdir}/#{directory}", "#{source}.#{normalized}")
end

#asset_url(source, type) ⇒ Object 



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# File 'lib/isolate_assets/assets.rb', line 80

def asset_url(source, type)
  fingerprint_value = fingerprint(source, type)
  @url_helpers.call.public_send(
    "#{route_name}_path",
    "#{source}.#{normalize_type(type)}",
    v: fingerprint_value,
  )
end

#content_type(type) ⇒ Object 



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# File 'lib/isolate_assets/assets.rb', line 99

def content_type(type)
  CONTENT_TYPES[type.to_s] || "application/octet-stream"
end

#draw(mapper, path) ⇒ Object

Draws the catch-all asset route into the given router (the application router for non-isolated engines, the engine’s own for isolated ones).



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# File 'lib/isolate_assets/assets.rb', line 68

def draw(mapper, path)
  mapper.get "#{path}/*file", to: controller.action(:show), as: route_name
end

#fingerprint(source, type) ⇒ Object 



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# File 'lib/isolate_assets/assets.rb', line 89

def fingerprint(source, type)
  cache_key = "#{source}.#{type}"

  if ::Rails.env.production?
    @fingerprints[cache_key] ||= calculate_fingerprint(source, type)
  else
    calculate_fingerprint(source, type)
  end
end

#javascript_files ⇒ Object 



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# File 'lib/isolate_assets/assets.rb', line 103

def javascript_files
  engine.root.glob("app/#{assets_subdir}/javascripts/**/*.js")
end