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.



11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
 
# 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