Class: UnderOs::Page::Builder

Inherits:
Object
  • Object
show all
Defined in:
lib/under_os/page/builder.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.views_from(source) ⇒ Object 



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# File 'lib/under_os/page/builder.rb', line 3

def self.views_from(source)
  @inst ||= new
  if source.is_a?(String)
    @inst.from_html(source)
  else
    @inst.from_nodes(source)
  end
end

Instance Method Details

#build_children_for(view, nodes) ⇒ Object 



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# File 'lib/under_os/page/builder.rb', line 54

def build_children_for(view, nodes)
  if view.is_a?(UnderOs::UI::Select)
    view.optgroups = select_optgroups_from(nodes)
  elsif view.is_a?(UnderOs::UI::Collection)
    find_collection_items_for(view, nodes)
  else
    from_nodes(nodes).each do |child|
      view.insert child
    end
  end
end

#build_view_from(node) ⇒ Object 



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# File 'lib/under_os/page/builder.rb', line 23

def build_view_from(node)
  klass   = class_for(node)
  options = options_from_attrs(node[:attrs] || {})

  if klass.instance_methods.include?(:text) && node[:text]
    options[:text] = node[:text]
  end

  klass.new(options).tap do |view|
    if node[:children] && node[:children].any?
      build_children_for(view, node[:children])
    end
  end
end

#class_for(node) ⇒ Object 



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# File 'lib/under_os/page/builder.rb', line 38

def class_for(node)
  if node[:attrs] && node[:attrs][:wrapper].is_a?(String)
    node[:attrs].delete(:wrapper).constantize
  else
    UnderOs::UI::Wrap::WRAPS_TAGS_MAP[node[:tag]] || UnderOs::UI::View
  end
end

#find_collection_items_for(collection, nodes) ⇒ Object 



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# File 'lib/under_os/page/builder.rb', line 83

def find_collection_items_for(collection, nodes)
  nodes.each do |node|
    klass = class_for(node)

    if klass <= UnderOs::UI::Collection::Item
      klass.build(collection) { from_nodes(node[:children]) }
    end

    # header
    # footer
  end
end

#from_html(source) ⇒ Object 



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# File 'lib/under_os/page/builder.rb', line 12

def from_html(source)
  @html ||= UnderOs::Parser::HTML.new
  from_nodes @html.parse(source)
end

#from_nodes(list) ⇒ Object 



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# File 'lib/under_os/page/builder.rb', line 17

def from_nodes(list)
  list.map do |node|
    build_view_from(node)
  end
end

#options_from_attrs(hash) ⇒ Object 



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# File 'lib/under_os/page/builder.rb', line 46

def options_from_attrs(hash)
  {}.tap do |options|
    hash.each do |key, value|
      options[key] = value
    end
  end
end

#select_optgroups_from(nodes) ⇒ Object 



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# File 'lib/under_os/page/builder.rb', line 66

def select_optgroups_from(nodes)
  nodes = [{tag: 'optgroup', children: nodes}] if nodes[0][:tag] == 'option'

  nodes.map do |group|
    {}.tap do |options|
      group[:children].each do |option|
        if option[:tag] == 'option'
          label = option[:text]
          value = option[:attrs][:value] || label

          options[value] = label if value && label
        end
      end
    end
  end
end