root/platform/tdiary/plugin/apple_webclip.rb

#
# apple_webclip.rb - Add icon information for Apple WebClip.
#
# Copyright (C) 2008, TADA Tadashi <sho@spc.gr.jp>
# You can redistribute it and/or modify it under GPL.
#

add_header_proc do
        if @conf['apple_webclip.url'] and @conf['apple_webclip.url'].size > 0
                %Q|     <link rel="apple-touch-icon" href="#{h @conf['apple_webclip.url']}"/>\n|
        else
                ''
        end
end

add_conf_proc( 'apple_webclip', 'Apple WebClip' ) do
        if @mode == 'saveconf' then
      @conf['apple_webclip.url'] = @cgi.params['apple_webclip.url'][0]
        end

        <<-HTML
   <h3 class="subtitle">Icon URL</h3>
   <p><input name="apple_webclip.url" value="#{h @conf['apple_webclip.url']}" size="70"></p>
        <p>Create and cpecify PNG file 60x60 pixels.</p>
   HTML
end