Module: Rabbit::Theme::Searcher

Included in:
Applier
Defined in:
lib/rabbit/theme/searcher.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

._collect_theme(path, entry_classes, converter = nil, &block) ⇒ Object 



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# File 'lib/rabbit/theme/searcher.rb', line 129

def _collect_theme(path, entry_classes, converter=nil, &block)
  converter ||= "theme_dir"
  themes = []
  theme_names = {}
  path.each do |dir|
    base_name = __send__(converter, dir)
    if File.directory?(base_name)
      Dir.foreach(base_name) do |theme|
        next if /\A..?\z/ =~ theme
        next if theme_names.has_key?(theme)
        theme_dir = File.join(File.expand_path(base_name), theme)
        entry_classes.each do |entry_class|
          entry = entry_class.new(@logger, theme_dir, theme)
          if entry.available?
            block.call(entry) if block
            themes << entry
            theme_names[theme] = true
            break
          end
        end
      end
    end
  end
  themes.sort
end

.collect_all_theme(&block) ⇒ Object 



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# File 'lib/rabbit/theme/searcher.rb', line 97

def collect_all_theme(&block)
  theme_names = {}
  themes = []
  callback = Proc.new do |entry|
    unless theme_names.has_key?(entry.name)
      theme_names[entry.name] = true
      themes << entry
      block.call(entry) if block
    end
  end
  collect_image_theme(&callback)
  collect_theme(&callback)
  themes.sort
end

.collect_image_theme(&block) ⇒ Object 



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# File 'lib/rabbit/theme/searcher.rb', line 116

def collect_image_theme(&block)
  _collect_theme(image_load_path, [ImageFileEntry, ImageDirectoryEntry],
                 "image_dir", &block)
end

.collect_theme(&block) ⇒ Object 



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# File 'lib/rabbit/theme/searcher.rb', line 112

def collect_theme(&block)
  _collect_theme(theme_load_path, [FileEntry, DirectoryEntry], &block)
end

.find_file(target, themes = nil) ⇒ Object 



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# File 'lib/rabbit/theme/searcher.rb', line 84

def find_file(target, themes=nil)
  themes ||= @theme_stack + @image_entries
  found_entry = themes.find do |entry|
    entry.have_file?(target)
  end
  if found_entry.nil?
    names = themes.collect {|entry| entry.name}
    raise LoadError,
          "can't find file in themes #{names.inspect}: #{target}."
  end
  found_entry.full_path(target)
end

.find_theme(theme_name = name, only_image = false) ⇒ Object 



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# File 'lib/rabbit/theme/searcher.rb', line 43

def find_theme(theme_name=name, only_image=false)
  if theme_name == "."
    if only_image
      entry = ImageDirectoryEntry.new(@logger, ".", ".")
    else
      entry = DirectoryEntry.new(@logger, ".", ".")
    end
    return entry if entry.available?
  end

  unless only_image
    entry = FileEntry.new(@logger, base_directory, theme_name)
    return entry if entry.available?
  end

  if only_image
    collector = "collect_image_theme"
  else
    collector = "collect_all_theme"
  end
  found_entry = nil
  __send__(collector) do |entry|
    if theme_name == entry.name
      found_entry = entry
      break
    end
  end

  if found_entry.nil?
    if only_image
      entry = ImageGemEntry.new(@logger, theme_name)
    else
      entry = GemEntry.new(@logger, theme_name)
    end
    return entry if entry.available?
    raise LoadError, "can't find theme: #{theme_name}."
  end

  found_entry
end

.image_dir(base_dir) ⇒ Object 



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# File 'lib/rabbit/theme/searcher.rb', line 39

def image_dir(base_dir)
  File.join(base_dir, 'rabbit', 'image')
end

.image_load_path ⇒ Object 



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# File 'lib/rabbit/theme/searcher.rb', line 125

def image_load_path
  Config::IMAGE_PATH + $LOAD_PATH
end

.theme_dir(base_dir) ⇒ Object 



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# File 'lib/rabbit/theme/searcher.rb', line 35

def theme_dir(base_dir)
  File.join(base_dir, 'rabbit', 'theme')
end

.theme_load_path ⇒ Object 



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# File 'lib/rabbit/theme/searcher.rb', line 121

def theme_load_path
  $LOAD_PATH
end

Instance Method Details

#add_image_path(name) ⇒ Object Also known as: add_theme_path 



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# File 'lib/rabbit/theme/searcher.rb', line 27

def add_image_path(name)
  @image_entries << find_theme(name, true)
end

#in_theme(entry) ⇒ Object 



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# File 'lib/rabbit/theme/searcher.rb', line 20

def in_theme(entry)
  push_theme(entry)
  yield(entry)
ensure
  pop_theme
end

#initialize(*args, &blocks) ⇒ Object 



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# File 'lib/rabbit/theme/searcher.rb', line 6

def initialize(*args, &blocks)
  @theme_stack = []
  @image_entries = []
  super
end

#pop_theme ⇒ Object 



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# File 'lib/rabbit/theme/searcher.rb', line 16

def pop_theme
  @theme_stack.pop
end

#push_theme(entry) ⇒ Object 



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# File 'lib/rabbit/theme/searcher.rb', line 12

def push_theme(entry)
  @theme_stack.push(entry)
end