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# -*- coding: utf-8 -*-
require 'userconfig'
require 'plugin'
module Skin
class SkinError < RuntimeError; end
class FileNotFoundError < SkinError; end
class ModelNotFoundError < SkinError; end
def self.extended(klass)
klass.class_eval{ @get_path = ::TimeLimitedStorage.new(Integer, String, 60) }
end
extend self
extend Gem::Deprecate
SKIN_ROOT = File.join(CHIConfig::CONFROOT, "skin")
USER_SKIN = if :vanilla == UserConfig[:skin_dir]
nil
else
UserConfig[:skin_dir] end
AVAILABLE_EXTENSIONS = %w[svg png jpg jpeg].map{|ext| [ext.downcase, ext.upcase] }.flatten.freeze
def default_dir
@default_dir ||= File.join(__dir__, "skin", "data").freeze
end
def default_image
@default_image ||= File.join(default_dir, "notfound.png").freeze
end
def user_dir
if USER_SKIN
File.join(SKIN_ROOT, USER_SKIN)
else
nil
end
end
def path
user_dir || default_dir
end
# 現在のSkinにおける、 _filename_ の画像を示すPhoto Modelを取得する
# ==== Args
# [filename] 画像ファイル名
# [fallback_dirs] スキンディレクトリのリスト
# ==== Return
# [Diva::Mixin::PhotoMixin] 画像
# ==== Raises
# [Skin::FileNotFoundError] 画像 _filename_ が見つからなかった時
def photo(filename, fallback_dirs=[])
result = Plugin::Skin::Image[get_path(filename, fallback_dirs)]
raise FileNotFoundError, "File `#{filename}' does not exists." unless result
result
end
alias :[] :photo
def get_path(filename, fallback_dirs = [])
@get_path[filename.hash ^ fallback_dirs.hash] ||= get_path_nocache(filename, fallback_dirs)
end
alias :get :get_path
deprecate :get, "get_path", 2018, 1 if Environment::VERSION >= [3, 6]
def get_path_nocache(filename, fallback_dirs)
ext = File.extname(filename.to_s)
if ext.empty?
get_path_without_extension(filename.to_s, fallback_dirs)
else
get_path_with_extension(filename.to_s, fallback_dirs)
end
end
def get_path_with_extension(filename, fallback_dirs)
filename, fallback_dirs = Plugin.filtering(:skin_get, filename, fallback_dirs)
[ user_dir, fallback_dirs, default_dir ].flatten.compact.flat_map { |dir|
File.join(dir, filename)
}.find { |path|
FileTest.exist?(path)
} || default_image
end
def get_path_without_extension(filename, fallback_dirs)
AVAILABLE_EXTENSIONS.lazy.map { |ext|
get_path_with_extension("#{filename}.#{ext}", fallback_dirs)
}.find{ |ext|
ext != default_image
} || default_image
end
end
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