Calling BSP from report and return control back ?

Question

Hi All,
      My requirement is as follows :-
1. I am calling a BSP from report using CL_GUI_HTML_VIEWER->show_url. The BSP page is displayed successfully.
2. Then, I perform some operations and want to return some data back to the main program (from where it was called - Report) and continue execution from there
How do I accomplish the second requirement (Control doesnt come back once I close the BSP) ?
Regards,
Ashish

Answer 1

how to generate events from html code in the html control back to your ABAP check out this demo program
SAPHTML_EVENTS_DEMO
say for example, in your case you are showing the BSP in GUI HTML control and on clicking a link you want to pass some data from your link to ABAP program and the ABAP should receive the value and process it and may be comeback to same BSP or go some to some other screen/transaction.
steps to follow:
after creating the html control
register event for call back and call the BSP url.
create object hviewer
             exporting
               parent = mycont.
    myevent-eventid = hviewer->m_id_sapevent.
    myevent-appl_event = 'x'.
    append myevent to myevent_tab.
    call method hviewer->set_registered_events
      exporting
        events = myevent_tab.
    create object evt_receiver.
    set handler evt_receiver->on_sapevent
                for hviewer.
    hviewer->enable_sapsso(
      exporting
        enabled    = 'X'
      exceptions
        cntl_error = 1
        others     = 2
    if sy-subrc <> 0.
    endif.
    call method hviewer->show_url
      exporting
        url = wf_url.
in your BSP the link should look like below
A HREF=SAPEVENT:TAGS?value to be passed to your ABAP> link text </a
when you click this link in bsp then you can then capture the value "TAGS" to know which link was clicked and the value passed after the ?
link is just one option, you can also send whole form data.
this type of link and form will only work when your BSP is invoked within HTML contro. if its invoked from standalone browser these wont work. so you amy want to dynamically show/hide "sapevent" links based on where it runs.
Hope this is clear. if not do getback.
Regards
Raja
Edited by: Durairaj Athavan Raja on Sep 9, 2008 1:04 PM