Module: RespondsToParent
- Defined in:
- lib/rails_ext/action_controller/responds_to_parent.rb
Overview
Module containing the methods useful for child IFRAME to parent window communication
Instance Method Summary collapse
-
#responds_to_parent(&block) ⇒ Object
(also: #respond_to_parent)
Executes the response body as JavaScript in the context of the parent window.
Instance Method Details
#responds_to_parent(&block) ⇒ Object Also known as: respond_to_parent
Executes the response body as JavaScript in the context of the parent window. Use this method of you are posting a form to a hidden IFRAME or if you would like to use IFRAME base RPC.
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# File 'lib/rails_ext/action_controller/responds_to_parent.rb', line 6 def responds_to_parent(&block) yield if performed? # We're returning HTML instead of JS or XML now response.headers['Content-Type'] = 'text/html; charset=UTF-8' # Either pull out a redirect or the request body script = if location = erase_redirect_results "document.location.href = #{location.to_s.inspect}" else response.body end # Escape quotes, linebreaks and slashes, maintaining previously escaped slashes # Suggestions for improvement? script = (script || ''). gsub('\\', '\\\\\\'). gsub(/\r\n|\r|\n/, '\\n'). gsub(/['"]/, '\\\\\&'). gsub('</script>','</scr"+"ipt>') # Clear out the previous render to prevent double render erase_results # Eval in parent scope and replace document location of this frame # so back button doesn't replay action on targeted forms # loc = document.location to be set after parent is updated for IE # with(window.parent) - pull in variables from parent window # setTimeout - scope the execution in the windows parent for safari # window.eval - legal eval for Opera render :text => "<html><body><script type='text/javascript' charset='utf-8'> var loc = document.location; with(window.parent) { setTimeout(function() { window.eval('#{script}'); loc.replace('about:blank'); }, 1) } </script></body></html>" end end |