Class: GMaps::JS

Inherits:
Object
  • Object
show all
Defined in:
lib/gmaps/js.rb

Constant Summary collapse

JS_ESCAPE_MAP =

escape_javascript Copied from ActionView::Helpers::JavaScriptHelper

{
  '\\'    => '\\\\',
  '</'    => '<\/',
  "\r\n"  => '\n',
  "\n"    => '\n',
  "\r"    => '\n',
  '"'     => '\\"',
  "'"     => "\\'"
}

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(str, *args) ⇒ JS

Returns a new instance of JS.



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# File 'lib/gmaps/js.rb', line 11

def initialize(str, *args)
  @str = if args.empty?
           str
         elsif args.length == 1 && args.first.is_a?(Hash)
           escaped_args = {}
           args.first.each { |k, v| escaped_args[k] = v.is_a?(String) ? escape_javascript(v) : v}
           str % (escaped_args)
         else
           args.map!{ |arg| arg.is_a?(String) ? escape_javascript(arg) : arg}
           str % args
         end
end

Class Method Details

.[](*args) ⇒ Object 



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# File 'lib/gmaps/js.rb', line 6

def [](*args)
  self.new(*args)
end

Instance Method Details

#escape_javascript(javascript) ⇒ Object

Escapes carriage returns and single and double quotes for JavaScript segments.

Also available through the alias j(). This is particularly helpful in JavaScript responses, like:

$('some_element').replaceWith('<%=j render 'some/element_template' %>');



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# File 'lib/gmaps/js.rb', line 52

def escape_javascript(javascript)
  if javascript
    result = javascript.gsub(/(\\|<\/|\r\n|\342\200\250|\342\200\251|[\n\r"'])/u) {|match| JS_ESCAPE_MAP[match] }
    javascript.html_safe? ? result.html_safe : result
  else
    ''
  end
end

#inspect ⇒ Object Also known as: to_s 



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# File 'lib/gmaps/js.rb', line 24

def inspect
  @str
end