Module: MapLayers::ViewHelpers

Defined in:
lib/map_layers/view_helpers.rb

Overview

Provides methods to generate HTML tags and JavaScript code

Instance Method Summary collapse

Instance Method Details

#map_layers_includes(options = {}) ⇒ Object

Insert javascript include tags

  • options with GMAPS Key: Include Google Maps

  • options with MultiMap Key: Include MultiMap

  • options: Include VirtualEarth

  • options with Yahoo appid: Include Yahoo! Maps

  • options with name of controller with proxy action. Defaults to current controller.


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# File 'lib/map_layers/view_helpers.rb', line 11

def map_layers_includes(options = {})
  options.assert_valid_keys(:google, :multimap, :openstreetmap, :virtualearth, :yahoo, :proxy,:img_path)
  html = ''
  if options.has_key?(:google)
    html << "<script type=\"text/javascript\" src=\"http://maps.google.com/maps?file=api&amp;v=2&amp;key=#{options[:google]}\"></script>"
  end
  if options.has_key?(:multimap)
    html << "<script type=\"text/javascript\" src=\"http://clients.multimap.com/API/maps/1.1/#{options[:multimap]}\"></script>"
  end
  if options.has_key?(:virtualearth)
    html << "<script type=\"text/javascript\" src=\"http://dev.virtualearth.net/mapcontrol/v3/mapcontrol.js\"></script>"
  end
  if options.has_key?(:yahoo)
    html << "<script type=\"text/javascript\" src=\"http://api.maps.yahoo.com/ajaxymap?v=3.0&appid=#{options[:yahoo]}\"></script>"
  end
  img_path = '/images/OpenLayers/'
  if options.has_key?(:img_path)
    img_path = options[:img_path]
  end
  if defined?( RAILS_ROOT)
    rails_env = RAILS_ENV
    rails_root = RAILS_ROOT
    rails_relative_url_root = ENV['RAILS_RELATIVE_URL_ROOT']
  else
    rails_env = Rails.env
    rails_root = Rails.root
    rails_relative_url_root = controller.config.relative_url_root
  end
  if rails_env == "development" && File.exist?(File.join( rails_root, 'public/javascripts/lib/OpenLayers.js'))
    html << '<script src="/javascripts/lib/Firebug/firebug.js"></script>'
    html << '<script src="/javascripts/lib/OpenLayers.js"></script>'
  else
    html << javascript_include_tag('OpenLayers')
  end


  html << stylesheet_link_tag("map")
  img_path=(Pathname(rails_relative_url_root||"") +img_path).cleanpath.to_s
  html << javascript_tag("OpenLayers.ImgPath='"+ img_path  + "/';")
  proxy = options.has_key?(:proxy) ? options[:proxy] : controller.controller_name
  html << javascript_tag("OpenLayers.ProxyHost='/#{proxy}/proxy?url=';")

  html
end