Module: Amber::Render::NavigationHelper

Included in:
View
Defined in:
lib/amber/render/helpers/navigation_helper.rb

Instance Method Summary collapse

Instance Method Details

#child_summaries(options = {}) ⇒ Object

inserts an directory index built from the page’s children

options:

:levels         -- the max levels to descend (default 1)
:page           -- StaticPage instance or nil
:include_toc    -- true or false (default false)
:order_by       -- arguments to PageArray#order_by
:heading        -- heading level to use (default 2)
:summary        -- to show summaries or not (default true)



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# File 'lib/amber/render/helpers/navigation_helper.rb', line 101

def child_summaries(options={})
  page = options.delete(:page) || @page
  unless page.is_a?(StaticPage)
    page = @site.find_pages(page)
  end
  return "" if page.nil? or page.children.empty?

  levels_max = options[:levels] || 1
  level      = options.delete(:level) || 1
  heading    = options.delete(:heading) || 2
  #locale     = @locals[:locale]
  menu       = submenu_for_page(page)
  if menu && menu.children.any?
    children = menu.children
  elsif options[:order_by]
    children = page.children.order_by(*options[:order_by])
  else
    children = page.children
  end

  haml do
    children.each do |child|
      child_page = child.is_a?(Amber::Menu) ? page.child(child.name) : child
      next unless child_page
      render_page_summary(child_page, heading, options)
      if level < levels_max
        haml(child_summaries({
          :page => child_page,
          :levels => levels_max,
          :level => level+1,
          :include_toc => options[:include_toc],
          :order_by => options[:order_by],
          :heading => heading+1,
          :summary => options[:summary]
        }))
      end
    end
  end
rescue Exception => exc
  Amber.log_exception(exc)
end

#current_page_path ⇒ Object 



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# File 'lib/amber/render/helpers/navigation_helper.rb', line 69

def current_page_path
  @current_page_path ||= begin
    if @page
      @page.path
    #elsif params[:page].is_a? String
    #  params[:page].split('/')
    else
      []
    end
  end
end

#has_navigation? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/amber/render/helpers/navigation_helper.rb', line 5

def has_navigation?
  if current_page_path.empty? || @site.menu.nil?
    false
  else
    submenu = @site.menu.submenu(current_page_path.first)
    if submenu
      second_level_children_count = submenu.size
      if second_level_children_count.nil?
        false
      else
        second_level_children_count >= 1
      end
    else
      false
    end
  end
end

#menu_item_title(item) ⇒ Object 



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# File 'lib/amber/render/helpers/navigation_helper.rb', line 81

def menu_item_title(item)
  page = @site.find_page_by_path(item.path_str) || @site.find_page_by_name(item.name)
  if page
    page.nav_title(I18n.locale)
  else
    nil
  end
end

#navigation_items(menu = nil, level = 1, &block) ⇒ Object

yields each item



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# File 'lib/amber/render/helpers/navigation_helper.rb', line 47

def navigation_items(menu=nil, level=1, &block)
  if menu.nil?
    menu = site.menu.submenu(current_page_path.first)
  end
  if menu
    menu.each do |item|
      title = menu_item_title(item)
      if title
        yield({
          :href => amber_path(item.path),
          :level => level,
          :active => path_active_class(current_page_path, item),
          :label => title
        })
      end
      if path_open?(current_page_path, item)
        navigation_items(item.submenu, level+1, &block)
      end
    end
  end
end

#render_page_summary(page, heading = 2, options = {}) ⇒ Object 



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# File 'lib/amber/render/helpers/navigation_helper.rb', line 143

def render_page_summary(page, heading=2, options={})
  locale = @locals[:locale]
  klass = options[:class] || '.page-summary'
  haml ".#{klass}" do
    haml "h#{heading}" do
      haml :a, page.nav_title(locale), :href => amber_path(page)
    end
    if options[:summary] != false
      if summary = page.prop(locale, 'summary')
        haml '.summary', summary
      elsif preview = page.prop(locale, 'preview')
        haml '.preview', preview
      end
    end
    if options[:include_toc]
      toc_html = render_toc(page, :locale => locale)
      haml toc_html
    end
  end
end

#top_navigation_items(options = {}) ⇒ Object

yields each item



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# File 'lib/amber/render/helpers/navigation_helper.rb', line 26

def top_navigation_items(options={})
  if !@site.menu
    yield({})
  else
    first = 'first'
    if options[:include_home]
      active = current_page_path.empty? ? 'active' : ''
      yield({:class => [first, active].compact.join(' '), :href => amber_path(@site.menu.path), :label => menu_item_title(@site.menu)})
      first = nil
    end
    @site.menu.each do |item|
      active = current_page_path.first == item.name ? 'active' : ''
      yield({:class => [first, active].compact.join(' '), :href => amber_path(item.path), :label => menu_item_title(item)})
      first = nil
    end
  end
end