module Lipsiadmin module Controller # 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. module RespondsToParent # Render an action to parent def render_to_parent(*options_for_render) responds_to_parent do # I don't use page.update for prevent dobule rendering # and so we can save rendering time! source = render_to_string(*options_for_render) render :update do |page| page.call "Backend.app.update", source end end end # Redirect parent to a new url def redirect_parent_to(location) responds_to_parent do render :update do |page| page.load location, true end end end private def responds_to_parent(&block) yield # 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 = location = erase_redirect_results ? "document.location.href = #{location.to_s.inspect}" : response.body # Escape quotes, linebreaks and slashes, maintaining previously escaped slashes # Suggestions for improvement? script = (script || ''). gsub('\\', '\\\\\\'). gsub(/\r\n|\r|\n/, '\\n'). gsub(/['"]/, '\\\\\&'). gsub('','') # 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 => "" end end end end