An SAP Consultant: Web Dynpro ABAP - Popup window creation

Steps involved.

Create two windows and create view for each window. Embed the views in the corresponding windows.
In the view of first window, when we click on button, second window should be displayed as popup.
Need to generate code to create popup window for the button OnAction event of the first window.

Example

Create Web Dynpro Component and save it as local object.

When you specify Window and View names when you create Web dynpro component. View START_V would be embedded automatically in the window START_W.
Go to view START_V -> Layout tab
-->Create one button UI element-->OnAction event for that button

Go to ONACTIONGOTO_POPUP event handler method -> Generate code code for popup window as shown below.

METHOD onactiongoto_popup .
  DATA lo_window_manager TYPE REF TO if_wd_window_manager.
  DATA lo_api_component  TYPE REF TO if_wd_component.
  DATA lo_window         TYPE REF TO if_wd_window.

  lo_api_component  = wd_comp_controller->wd_get_api( ).
  lo_window_manager = lo_api_component->get_window_manager( ).
  lo_window         = lo_window_manager->create_window(
                     window_name            = 'POPUP_W'
*                    title                  =
*                    close_in_any_case      = abap_true
                     message_display_mode   = if_wd_window=>co_msg_display_mode_selected
*                    close_button           = abap_true
                     button_kind            = if_wd_window=>co_buttons_ok
                     message_type           = if_wd_window=>co_msg_type_none
                     default_button         = if_wd_window=>co_button_ok
                     ).

  lo_window->open( ).

ENDMETHOD.