class UIAlertView # UIAlertView.alert("title", # message: "help!", # # The first button is considered the 'cancel' button, for the purposes of # # whether the cancel or success handler gets called # buttons: %w"Cancel OK No-way", # cancel: proc{ puts "nevermind" }, # success: proc{ |pressed| puts "pressed: #{pressed}" }, # ) # # If you choose def self.alert(title, options={}, more_options={}, &block) if options.is_a? String more_options[:message] = options options = more_options end # create the delegate delegate = SugarCube::AlertViewDelegate.new delegate.on_success = options[:success] delegate.on_cancel = options[:cancel] delegate.on_default = block delegate.send(:retain) args = [title] # initWithTitle: args << options[:message] # message: args << delegate # delegate: buttons = options[:buttons] || [] if buttons.empty? # cancelButtonTitle: is first, so check for cancel if options[:cancel] buttons << "Cancel" end # otherButtonTitles: if buttons.empty? args << nil # cancel button => nil buttons << "OK" # other buttons => "OK" elsif options[:success] buttons << "OK" end elsif buttons.length == 1 && options[:cancel] raise "If you only have one button, use a :success handler, not :cancel (and definitely not BOTH)" end # the button titles. These are passed to the success handler. delegate.buttons = buttons # uses localized buttons in the actual alert args.concat(buttons.map { |m| m && m.localized }) args << nil # otherButtonTitles:..., nil alert = self.alloc alert.send(:"initWithTitle:message:delegate:cancelButtonTitle:otherButtonTitles:", *args) if options.key?(:style) style = options[:style] style = style.uialertstyle if style.respond_to?(:uialertstyle) alert.alertViewStyle = style end if options.fetch(:show, true) alert.show end alert end def <<(title) addButtonWithTitle(title) end private def dummy self.initWithTitle(nil, message:nil, delegate:nil, cancelButtonTitle:nil, otherButtonTitles:nil) end end module SugarCube class AlertViewDelegate attr_accessor :buttons attr_accessor :on_cancel attr_accessor :on_success attr_accessor :on_default def alertView(alert, didDismissWithButtonIndex:index) handler = nil if index == alert.cancelButtonIndex handler = on_cancel else handler = on_success end handler ||= on_default args = nil if handler if handler.arity == 0 args = [] else # construct all the possible arguments you could send args = [buttons[index]] # add the first input if this is not the default if alert.alertViewStyle != UIAlertViewStyleDefault args << alert.textFieldAtIndex(0).text end # add the second one if this is a login+password input if alert.alertViewStyle == UIAlertViewStyleLoginAndPasswordInput args << alert.textFieldAtIndex(1).text end # and maybe you want the index, too args << index # but only send the ones they asked for args = args[0...handler.arity] end handler.call(*args) end self.send(:autorelease) end end end