Class: Volt::ComponentTemplates

Inherits:
Object
  • Object
show all
Extended by:
Preprocessors
Defined in:
lib/volt/server/component_templates.rb,
lib/volt/server/template_handlers/preprocessors.rb

Defined Under Namespace

Modules: Preprocessors

Instance Method Summary collapse

Methods included from Preprocessors

extended, extensions, handler_for_extension, register_template_handler, registered_template_handler

Constructor Details

#initialize(component_path, component_name, client = true) ⇒ ComponentTemplates

client is if we are generating for the client or backend



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# File 'lib/volt/server/component_templates.rb', line 19

def initialize(component_path, component_name, client = true)
  @component_path = component_path
  @component_name = component_name
  @client         = client
end

Instance Method Details

#app_reference ⇒ Object 



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# File 'lib/volt/server/component_templates.rb', line 46

def app_reference
  if @client
    'Volt.current_app'
  else
    'volt_app'
  end
end

#component_code ⇒ Object 



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# File 'lib/volt/server/component_templates.rb', line 33

def component_code
  code = ''

  code << generate_routes_code + generate_view_code
  if @client
    # On the backend, we just need the views
    code << generate_controller_code + generate_model_code +
            generate_tasks_code
  end

  code
end

#generate_controller_code ⇒ Object 



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# File 'lib/volt/server/component_templates.rb', line 94

def generate_controller_code
  code             = ''
  controllers_path = "#{@component_path}/controllers/"
  views_path = "#{@component_path}/views/"

  # Controllers are optional, specifying a view folder is enough to auto
  # generate the controller.

  implicit_controllers = Dir["#{views_path}*"].sort.map do |path|
    # remove the /views/ folder and add _controller.rb
    path.split('/').tap {|v| v[-2] = 'controllers' }.join('/') + '_controller.rb'
  end
  explicit_controllers = Dir["#{controllers_path}*_controller.rb"].sort

  controllers = (implicit_controllers + explicit_controllers).uniq

  controllers.each do |path|
    if File.exists?(path)
      code << "\nrequire '#{localize_path(path)}'\n"
    else
      # parts = path.scan(/([^\/]+)\/controllers\/([^\/]+)_controller[.]rb$/)
      # component, controller = parts[0]

      # # Generate a blank controller.  (We need to actually generate one so
      # # the Template can be attached to it for template inheritance)
      # code << "\nmodule #{component.camelize}\n  class #{controller.camelize} < Volt::ModelController\n  end\nend\n"
    end
  end

  code
end

#generate_initializers_code ⇒ Object 



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# File 'lib/volt/server/component_templates.rb', line 174

def generate_initializers_code
  paths = Dir["#{@component_path}/config/initializers/*.rb"]
  paths += Dir["#{@component_path}/config/initializers/client/*.rb"]

  code = "\n" + paths.map { |path| "require '#{localize_path(path)}'" }.join("\n")

  code + "\n\n"
end

#generate_model_code ⇒ Object 



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# File 'lib/volt/server/component_templates.rb', line 126

def generate_model_code
  code        = ''
  models_path = "#{@component_path}/models/"

  Dir["#{models_path}*.rb"].sort.each do |model_path|
    # code << File.read(model_path) + "\n\n"

    # model_name = model_path.match(/([^\/]+)[.]rb$/)[1]
    if File.exists?(model_path)
      code << "require '#{localize_path(model_path)}'\n"
    end
  end

  code
end

#generate_routes_code ⇒ Object 



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# File 'lib/volt/server/component_templates.rb', line 142

def generate_routes_code
  code        = ''
  routes_path = "#{@component_path}/config/routes.rb"

  if File.exist?(routes_path)
    code << "#{app_reference}.add_routes do\n"
    code << "\n" + File.read(routes_path) + "\n"
    code << "end\n\n"
  end

  code
end

#generate_tasks_code ⇒ Object 



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# File 'lib/volt/server/component_templates.rb', line 155

def generate_tasks_code
  Task.known_handlers.map do |handler|
    # Split into modules and class
    klass_parts = handler.name.split('::')

    # Start with the inner class
    parts = ["class #{klass_parts.pop} < Volt::Task; end"]

    # Work backwards on the modules
    klass_parts.reverse_each do |kpart|
      parts.unshift("module #{kpart}")
      parts.push('end')
    end

    # Combine the parts
    parts.join("\n")
  end.join "\n" # combine all into one string
end

#generate_view_code ⇒ Object 



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# File 'lib/volt/server/component_templates.rb', line 54

def generate_view_code
  code = ''
  views_path = "#{@component_path}/views/"

  exts = Preprocessors.extensions

  # Load all templates in the folder
  Dir["#{views_path}*/*.{#{exts.join(',')}}"].sort.each do |view_path|
    if @client
      require_path = view_path.split('/')[-4..-1].join('/').gsub(/[.][^.]*$/, '')

      # On the client side, we can just require the file and let sprockets
      # handle things.
      code << "\nrequire '#{require_path}'\n"
    else
      valid_exts_re = exts.join('|')
      # On the sever side, we eval the compiled code
      path_parts = view_path.scan(/([^\/]+)\/([^\/]+)\/[^\/]+\/([^\/]+)[.](#{valid_exts_re})$/)
      component_name, controller_name, view, _ = path_parts[0]

      # file extension
      format = File.extname(view_path).downcase.delete('.').to_sym

      # Get the path for the template, supports templates in folders
      template_path = view_path[views_path.size..-1].gsub(/[.](#{valid_exts_re})$/, '')
      template_path = "#{@component_name}/#{template_path}"

      html = File.read(view_path)

      if handler = ComponentTemplates.handler_for_extension(format)
        html = handler.call(html)

        code << ViewParser.new(html, template_path).code(app_reference)
      end
    end
  end

  code
end

#initializer_code ⇒ Object 



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# File 'lib/volt/server/component_templates.rb', line 25

def initializer_code
  if @client
    generate_initializers_code
  else
    ''
  end
end