content_breadcrumbs_block.rb
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class BreadcrumbsPlugin::ContentBreadcrumbsBlock < Block
settings_items :show_cms_action, :type => :boolean, :default => true
settings_items :show_profile, :type => :boolean, :default => true
settings_items :show_section_name, :type => :boolean, :default => true
attr_accessible :show_cms_action, :show_profile, :show_section_name
def self.description
_('Content Breadcrumbs')
end
def help
_('This block displays breadcrumb trail.')
end
def page_trail(page, params={})
links = []
if page
links = page.ancestors.reverse.map { |p| { :name => p.title, :url => p.url } }
links << { :name => page.title, :url => page.url }
elsif params[:controller] == 'cms'
id = params[:id] || params[:parent_id]
links = page_trail(Article.find(id)) if id
links << { :name => cms_action(params[:action]), :url => params } if show_cms_action
end
links
end
def trail(page, profile=nil, params={})
links = page_trail(page, params)
if profile && !links.empty? && show_profile
[ {:name => profile.name, :url => profile.url} ] + links
else
links
end
end
def content(args={})
block = self
proc do
trail = block.trail(@page, @profile, params)
if !trail.empty?
separator = content_tag('span', ' > ', :class => 'separator')
breadcrumb = trail.map do |t|
link_to(t[:name], t[:url], :class => 'item')
end.join(separator)
if block.show_section_name
section_name = block.show_profile ? trail.second[:name] : trail.first[:name]
breadcrumb << content_tag('div', section_name, :class => 'section-name')
end
breadcrumb
else
''
end
end
end
def cacheable?
false
end
protected
CMS_ACTIONS = {:edit => c_('Edit'), :upload_files => _('Upload Files'), :new => c_('New')}
def cms_action(action)
CMS_ACTIONS[action.to_sym] || action
end
end