Class: DcBigMenuRenderer

Inherits:
Object
  • Object
show all
Includes:
DcApplicationHelper
Defined in:
app/helpers/dc_big_menu_renderer.rb

Overview

dc_big_menu is experimental menu system which can be used as alternative to dc_menu when sub menu menu level is larger than two levels. Idea is to have top two levels of menu displayed on standard top of page position with other sub levels displayed vertically on left or right part of page. Renderer also provides path method, which can be used to show menu path of currently displayed page.

Instance Attribute Summary

Attributes included from DcApplicationHelper

#design, #form, #ids, #menu, #menu_item, #options, #page, #page_title, #part, #parts, #record_footer, #site, #tables

Instance Method Summary collapse

Methods included from DcApplicationHelper

#_origin, #dc_add2_record_cookie, #dc_big_table, #dc_choices4, #dc_choices4_all_collections, #dc_choices4_cmsmenu, #dc_choices4_field, #dc_choices4_folders_list, #dc_choices4_menu, #dc_choices4_site_policies, #dc_date_time, #dc_deprecate, #dc_dont?, #dc_edit_mode?, #dc_edit_title, #dc_error_messages_for, #dc_flash_messages, #dc_format_date_time, #dc_get_site, #dc_icon4_boolean, #dc_iframe_edit, #dc_internal_var, #dc_label_for, #dc_limit_string, #dc_link_for_create, #dc_link_for_edit, #dc_link_for_edit1, #dc_link_menu_tag, #dc_link_to, #dc_menu_class, #dc_name4_id, #dc_name4_value, #dc_new_title, #dc_page_bottom, #dc_page_class, #dc_page_edit_menu, #dc_page_top, #dc_render, #dc_render_design, #dc_render_design_part, #dc_render_from_site, #dc_render_partial, #dc_replace_in_design, #dc_submit_tag, #dc_table_title, #dc_user_can_view, #dc_user_has_role, #decamelize_type, #forms_merge, #t, #t_name, #t_tablename

Constructor Details

#initialize(parent, opts) ⇒ DcBigMenuRenderer

Object initialization.



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# File 'app/helpers/dc_big_menu_renderer.rb', line 38

def initialize( parent, opts ) #:nodoc:
  @parent = parent
  @site = parent.dc_get_site
  @opts = opts
  self
end

Instance Method Details

#default ⇒ Object

Default methods renders top two levels of menu on top of page.



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# File 'app/helpers/dc_big_menu_renderer.rb', line 141

def default
  html = '<div class="menu0-div"><ul>'
  @selected = find_selected
  level_0 = DcBigMenu.where(dc_site_id: @site._id, parent: nil, active: true).sort(order: 1).to_a
  level_0.each do |item|
# menu can be hidden from user    
    can_view, msg = dc_user_can_view(@parent, item)
    next unless can_view
    klas = item.id == @selected.id ? "menu0-selected" : "menu0-item"
    html << "<li class='#{klas}'>#{ link_4menu(item) }</li>\n"
  end
  html << "</ul></div>"
# submenu
  level_1 = DcBigMenu.where(dc_site_id: @site._id, parent: @selected.id, active: true).sort(order: 1).to_a
  html << "<div class='menu1-div'><ul>\n"
  level_1.each do |item1|
# menu can be hidden from user    
    can_view, msg = dc_user_can_view(@parent, item1)
    next unless can_view
    html << "  <li class='menu1-item'>#{link_4menu(item1)}</li>\n"
  end
  html << '</ul></div>'
end

#find_selected ⇒ Object

Find out which top level menu currently displayed page belongs to. Subroutine of default method.



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# File 'app/helpers/dc_big_menu_renderer.rb', line 48

def find_selected #:nodoc:
  ret = DcBigMenu.find( @parent.page.menu_id ) if @parent.page.menu_id
  while ret and ret.parent != nil
    ret = DcBigMenu.find( ret.parent )
  end
# return first if not found (something is wrong)
#  p ret
  ret ||= DcBigMenu.where(dc_site_id: @site._id, parent: nil, active: true).limit(1).first
end

#left_menu ⇒ Object

Renderer for menu part displayed on left position of page.



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# File 'app/helpers/dc_big_menu_renderer.rb', line 91

def left_menu
  html = ''
  m = DcBigMenu.find( @parent.page.menu_id )
# Show menu on same level if selected has no children
  if DcBigMenu.where( parent: @parent.page.menu_id ).limit(1).to_a.size == 0
    m = DcBigMenu.find( m.parent )
  end    
#     
  html << "<div class='menu-left-item-top'>#{m.caption}</div>"
  DcBigMenu.where( parent: m._id ).sort(order: 1).each do |item|
    html << (item._id == @parent.page.menu_id ? '<div class="menu-left-item-selected">' : '<div class="menu-left-item">')
    html << link_4menu(item) 
    html << '</div>'
  end
#  
  html << "<div class='menu-left-item-bottom'>"
  if m.parent
    p = DcBigMenu.find( m.parent )
    html << "&#9650; #{link_4menu(p)}"
  end
  html << '&nbsp;</div>' 
end

#link_4edit ⇒ Object

Creates edit link if in edit mode.



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# File 'app/helpers/dc_big_menu_renderer.rb', line 61

def link_4edit #:nodoc:
  html = ''
  return html unless @opts[:edit_mode] > 1
  
  @opts[:editparams].merge!( { table: 'dc_big_menu', controller: 'cmsedit', action: 'edit' } )
  title = "#{t('drgcms.edit')}: "
  @opts[:editparams].merge!( { id: @menu.id, title: "#{title}#{@menu.name}" } ) if @menu
  title << t('helpers.label.dc_big_menu.tabletitle')
  @opts[:editparams].merge!( { action: 'index', title: title }) if @menu.nil?
  html << dc_link_for_edit( @opts[:editparams] )
end

#link_4menu(item) ⇒ Object

Returns html code for single link on a menu.



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# File 'app/helpers/dc_big_menu_renderer.rb', line 76

def link_4menu(item) #:nodoc:
  html = ''
  link = item.link
  link = "/#{@site.route_name}/#{item.page_id}" #if link.blank?
#  
  html << @parent.link_to(item.picture, link) unless item.picture.blank?
  html << if !item.caption.blank?
    # TODO Translation
    @parent.link_to(item.caption, link)
  end
end

#path ⇒ Object

Renders menu path for currently selected page.



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# File 'app/helpers/dc_big_menu_renderer.rb', line 117

def path
  html = ''
  a = []
  m = DcBigMenu.find( @parent.page.menu_id )
  a << m
  while m.parent 
    m = DcBigMenu.find( m.parent )
    a << m
  end
#  
  (a.size - 1).downto(0) do |i| 
    html << "<span id=menu-path-#{a.size - 1 - i}>"
    html << link_4menu(a[i]) 
    html << (i > 0 ? ' &raquo; ' : '') #&rsaquo;&#10132;
    html << '</span>'
  end
# Save level to parents params object
  @parent.params[:menu_level] = a.size
  html
end

#render_css ⇒ Object

Return CSS part of code.



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# File 'app/helpers/dc_big_menu_renderer.rb', line 176

def render_css
  @menu ? "#{@menu.css}\n #{@selected ? @selected.css : ''}\n" : ''
end

#render_html ⇒ Object

Renderer dispatcher. Method returns HTML part of code.



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# File 'app/helpers/dc_big_menu_renderer.rb', line 168

def render_html
  method = @opts[:method] || 'default'
  respond_to?(method) ? send(method) : "Error DcBigMenu: Method #{method} doesn't exist!"
end