Class: SimpleNavigation::Configuration

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/simple_navigation/core/configuration.rb

Overview

Responsible for evaluating and handling the config/navigation.rb file.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Configuration

Sets the config’s default-settings



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# File 'lib/simple_navigation/core/configuration.rb', line 27

def initialize
  @renderer = SimpleNavigation.default_renderer || SimpleNavigation::Renderer::List
  @selected_class = 'selected'
  @autogenerate_item_ids = true
  @id_generator = Proc.new {|id| id.to_s }
  @auto_highlight = true
end

Instance Attribute Details

#auto_highlight ⇒ Object

Returns the value of attribute auto_highlight.



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# File 'lib/simple_navigation/core/configuration.rb', line 9

def auto_highlight
  @auto_highlight
end

#autogenerate_item_ids ⇒ Object

Returns the value of attribute autogenerate_item_ids.



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# File 'lib/simple_navigation/core/configuration.rb', line 9

def autogenerate_item_ids
  @autogenerate_item_ids
end

#id_generator ⇒ Object

Returns the value of attribute id_generator.



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# File 'lib/simple_navigation/core/configuration.rb', line 9

def id_generator
  @id_generator
end

#primary_navigation ⇒ Object (readonly)

Returns the value of attribute primary_navigation.



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# File 'lib/simple_navigation/core/configuration.rb', line 10

def primary_navigation
  @primary_navigation
end

#renderer ⇒ Object

Returns the value of attribute renderer.



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# File 'lib/simple_navigation/core/configuration.rb', line 9

def renderer
  @renderer
end

#selected_class ⇒ Object

Returns the value of attribute selected_class.



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# File 'lib/simple_navigation/core/configuration.rb', line 9

def selected_class
  @selected_class
end

Class Method Details

.eval_config(navigation_context = :default) ⇒ Object

Evals the config_file for the given navigation_context



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# File 'lib/simple_navigation/core/configuration.rb', line 15

def eval_config(navigation_context = :default)
  SimpleNavigation.context_for_eval.instance_eval(SimpleNavigation.config_files[navigation_context])
end

.run(&block) ⇒ Object

Starts processing the configuration



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# File 'lib/simple_navigation/core/configuration.rb', line 20

def run(&block)
  block.call Configuration.instance
end

Instance Method Details

#items(items_provider = nil, &block) ⇒ Object

This is the main method for specifying the navigation items. It can be used in two ways:

  1. Declaratively specify your items in the config/navigation.rb file using a block. It then yields an SimpleNavigation::ItemContainer for adding navigation items.

  2. Directly provide your items to the method (e.g. when loading your items from the database).

Example for block style (configuration file)

config.items do |primary|
  primary.item :my_item, 'My item', my_item_path
  ...
end

To consider when directly providing items

items_provider should be:

  • a methodname (as symbol) that returns your items. The method needs to be available in the view (i.e. a helper method)

  • an object that responds to :items

  • an enumerable containing your items

The items you specify have to fullfill certain requirements. See SimpleNavigation::ItemAdapter for more details.



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# File 'lib/simple_navigation/core/configuration.rb', line 53

def items(items_provider=nil, &block)
  raise 'please specify either items_provider or block, but not both' if (items_provider && block) || (items_provider.nil? && block.nil?)
  @primary_navigation = ItemContainer.new
  if block
    block.call @primary_navigation
  else
    @primary_navigation.items = SimpleNavigation::ItemsProvider.new(items_provider).items
  end
end

#loaded? ⇒ Boolean

Returns true if the config_file has already been evaluated.

Returns:

  • (Boolean) 


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# File 'lib/simple_navigation/core/configuration.rb', line 64

def loaded?
  !@primary_navigation.nil?
end