Module: Insightful::HeadHelper

Defined in:
lib/insightful/head_helper.rb

Instance Method Summary collapse

Instance Method Details

#classification(type) ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 190

def classification(type)
  tag(:meta, :name => "og:type", :content => type)
end

#content_type_tag(type = "text/html", charset = "UTF-8") ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 194

def content_type_tag(type = "text/html", charset = "UTF-8")
  meta_tag("Content-Type", "#{type}; charset=#{charset}")
end

#copyright(from) ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 125

def copyright(string)
  @content_for_copyright = string
end

#copyright_tag(default = '') ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 129

def copyright_tag(default='')
  content = @content_for_copyright || default
  tag(:meta, :name => :copyright, :content => content) unless content.blank?
end

#description(string) ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 107

def description(string)
  @content_for_description = string
end

#description_tag(default = '') ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 111

def description_tag(default='')
  content = normalize_description(@content_for_description || default)
  tag(:meta, :name => :description, :content => content) unless content.blank?
end

#favicon_link_tag(favicon = "/favicon.ico") ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 202

def favicon_link_tag(favicon = "/favicon.ico")
  link_tag({:rel => "shortcut icon", :href => favicon, :type => "image/x-icon"})
end

#keywords(string) ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 116

def keywords(string)
  @content_for_keywords = string
end

#keywords_tag(default = '') ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 120

def keywords_tag(default = '')
  content = normalize_keywords(@content_for_keywords || default)
  tag(:meta, :name => :keywords, :content => content) unless content.blank?
end

#link_tag(options = {}) ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 206

def link_tag(options = {})
  tag(:link, options)
end

#medium(type) ⇒ Object

wiki.developers.facebook.com/index.php/Facebook_Share/Specifying_Meta_Tags



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# File 'lib/insightful/head_helper.rb', line 186

def medium(type)
  tag(:meta, :name => :medium, :content => type)
end

#meta(options = {}) ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 21

def meta(options = {})
  title(options[:title]) if options.has_key?(:title)
  description(options[:description]) if options.has_key?(:description)
  keywords(options[:keywords]) if options.has_key?(:keywords)
  copyright(options[:copyright]) if options.has_key?(:copyright)
end

#meta_for(post) ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 4

def meta_for(post)
  result = ""
  unless post.title.blank?
    result << title(post.title)
    result << "\n"
  end
  unless post.tags.blank?
    result << keywords(post.tags.join(", "))
    result << "\n"
  end
  unless post.description.blank?
    result << description(post.description)
    result << "\n"
  end
  result
end

#meta_tag(name, content = '') ⇒ Object

country classification author apple-mobile-web-app-capable apple-touch-fullscreen google-analytics Revisit-After category



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# File 'lib/insightful/head_helper.rb', line 51

def meta_tag(name, content = '')
  tag(:meta, :name => name, :content => content)
end

#meta_tags(*args) ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 28

def meta_tags(*args)
  options = args.extract_options!
  site = options[:site] || args.first
  result = title_tag(site, options[:title])
  result << "\n"
  result << content_type_tag
  result << "\n"
  result << description_tag(options[:description])
  result << "\n"
  result << keywords_tag(options[:keywords])
  result << "\n"
  result << copyright_tag(options[:copyright])
  result
end

#robots(*args) ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 134

def robots(*args)
  content_for(:robots, args.join(", "))
end

#robots_tag(*args) ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 138

def robots_tag(*args)
  options = args.extract_options!

  noindex_name = tags[:noindex].is_a?(String) ? tags[:noindex] : 'robots'
  nofollow_name = tags[:nofollow].is_a?(String) ? tags[:nofollow] : 'robots'

  if noindex_name == nofollow_name
    content = [(tags[:noindex] ? 'noindex' : nil), (tags[:nofollow] ? 'nofollow' : nil)].compact.join(', ')
    unless content.blank?
      result << "\n"
      result << tag(:meta, :name => noindex_name, :content => content)
    end
  else
    if tags[:noindex]
      result << "\n"
      result << tag(:meta, :name => noindex_name, :content => 'noindex')
    end
    if tags[:nofollow]
      result << "\n"
      result << tag(:meta, :name => nofollow_name, :content => 'nofollow')
    end
  end
  # canonical
  unless tags[:canonical].blank?
    result << "\n"
    result << tag(:link, :rel => :canonical, :href => tags[:canonical]) 
  end

  return result
end

#search_link_tag(href, title) ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 198

def search_link_tag(href, title)
  link_tag({:rel => "search", :type => "application/opensearchdescription+xml", :href => href, :title => title})
end

#snapshot_tag(href) ⇒ Object

wiki.developers.facebook.com/index.php/Facebook_Share/Specifying_Meta_Tags



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# File 'lib/insightful/head_helper.rb', line 181

def snapshot_tag(href)
  tag(:link, :rel => "image_src", :href => href)
end

#title(string) ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 55

def title(string)
  @content_for_title = string
end

#title_tag(*args) ⇒ Object 



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# File 'lib/insightful/head_helper.rb', line 59

def title_tag(*args)
  options = args.extract_options!

  site = options[:site] || args.first
  # Prefix (leading space)
  if options[:prefix]
    prefix = options[:prefix]
  elsif options[:prefix] === false
    prefix = ''
  else
    prefix = ' '
  end

  # Separator
  unless options[:separator].blank?
    separator = options[:separator]
  else
    separator = '|'
  end
  
  # Suffix (trailing space)
  if options[:suffix]
    suffix = options[:suffix]
  elsif options[:suffix] === false
    suffix = ''
  else
    suffix = ' '
  end

  # Title
  title = @content_for_title
  if options[:lowercase] === true
    title = title.downcase unless title.blank?
  end

  # title
  if title.blank?
    result = content_tag :title, site
  else
    title = normalize_title(title)
    title = [site] + title
    title.reverse! unless options[:reverse] === false
    sep = prefix + separator + suffix
    result = content_tag(:title, title.join(sep))
  end
  result
end