Class: Heel::MimeMap

Inherits:
Object
  • Object
show all
Defined in:
lib/heel/mime_map.rb

Overview

MimeMap is a Heel specific mime mapping utility. It is based upon MIME::Type and adds some additional mime types. It can also say what the icon name for a particular mime type is.

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ MimeMap

Returns a new instance of MimeMap.



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# File 'lib/heel/mime_map.rb', line 46

def initialize
  MimeMap.additional_mime_types.each do |mt|
    existing_type = MIME::Types[mt]
    if existing_type.empty? then
      MIME::Types.add(mt)
    else
      type = existing_type.first
      type.add_extensions(mt.extensions)
    end
  end
end

Class Method Details

.additional_mime_types ⇒ Object

if any other mime types are needed, add them directly via the mime-types calls.



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# File 'lib/heel/mime_map.rb', line 39

def additional_mime_types
  [
    MIME::Type.new( 'text/plain' ) {  |t| t.extensions = %w[ rb rdoc rhtml md markdown ] },
  ]
end

.icons_by_mime_type ⇒ Object 



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# File 'lib/heel/mime_map.rb', line 16

def icons_by_mime_type
  @icons_by_mime_type ||= {
      "text/plain"                => "page_white_text.png",
      "image"                     => "picture.png",
      "pdf"                       => "page_white_acrobat.png",
      "xml"                       => "page_white_code.png",
      "compress"                  => "compress.png",
      "gzip"                      => "compress.png",
      "zip"                       => "compress.png",
      "application/xhtml+xml"     => "xhtml.png",
      "application/word"          => "page_word.png",
      "application/excel"         => "page_excel.png",
      "application/powerpoint"    => "page_white_powerpoint.png",
      "text/html"                 => "html.png",
      "application"               => "application.png",
      "text"                      => "page_white_text.png",
      :directory                  => "folder.png",
      :default                    => "page_white.png",
  }
end

Instance Method Details

#default_mime_type ⇒ Object 



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# File 'lib/heel/mime_map.rb', line 58

def default_mime_type
  @default_mime_type ||= MIME::Types["application/octet-stream"].first
end

#icon_for(mime_type) ⇒ Object

return the icon name for a particular mime type



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# File 'lib/heel/mime_map.rb', line 70

def icon_for(mime_type)
  icon = nil
  [:content_type, :sub_type, :media_type].each do |t| 
    icon = MimeMap.icons_by_mime_type[mime_type.send(t)]
    return icon if icon
  end
  icon = MimeMap.icons_by_mime_type[:default]
end

#mime_type_of(f) ⇒ Object

returns the mime type of the file at a given pathname



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# File 'lib/heel/mime_map.rb', line 64

def mime_type_of(f)
  MIME::Types.of(f).last || default_mime_type
end