CL_PHTMLB_POPUPMENU

[Former Member]

New one:

In my tableview (multiselect), I need to access the SELECTED_TEXT attribute of the CL_PHTMLB_POPUPMENU class. This is because the mentioned attribute contains "Select all" or "Deselect all" depending on whether the user does just that in the tableview. However, I can't seem to access this attribute... what's needed?

trond

[thomas_jung · Accepted solution]

Are you just wanting to get the selected items?

I am on 640 SP12 and I just let the TableView control itself select the items (I don't respond to the CL_PHTML_POPUPMENU at all). When I need to get the list of the selected items I use the following code:

 data: tv           type ref to cl_htmlb_tableview,
          table_event  type ref to cl_htmlb_event_tableview.

    tv ?= cl_htmlb_manager=>get_data( request = request
                                          name    = 'tableView'
                                          id      = 'dir_attach' ).
    if tv is not initial.
      table_event = tv->data.
    endif.

    model1->download_dir_event( sel_index  = table_event->prevselectedrowindextable
                                runtime    = runtime ).

But if you want to catch the Menu select directly you can. HTMLB_EVENT_EX throws the CL_PHTMLB_POPUPMENU class on the menu select event. You just need to cast it.

data: popup_event type ref to cl_phtmlb_popupmenu.
popup_event ?= htmlb_event_ex.

Both of these examples where model view controller. If you where in an old style page you would have to capture htmlb_event_Ex first:

data: htmlb_event_ex type ref to if_htmlb_data.
htmlb_event_ex  = cl_htmlb_manager=>get_event_ex( request ).

[Former Member · Accepted solution]

Well, basically I want to know whether the user has Selected or Deselected all. The problem is firstly that the Select All/Deselect all action does not trigger an event (at least nothing that can be caught using the get_event method of the CL_HTMLB_MANAGER). So, I use the get_event_ex, which as you state gives me the cl_htmlb_popupmenu. BUT; the SELECTED_TEXT, which contains either "Select all" or "Deselect all" depending on the user's action, is out of reach. I can see the contents in the debugger, but cannot reference it in my code...

[thomas_jung · Accepted solution]

What are you receiving the HTMLB_EX object into? If you cast it into cl_phtmlb_popupmenu, you should have access to selected_text.

data: popup_event type ref to cl_phtmlb_popupmenu.
popup_event ?= htmlb_event_ex.

I seem to be able to access it in an application in my system.

[Former Member · Accepted solution]

I've already tried to receive it into a type of CL_phtmlb_popupmenu, but it won't even compile:

popup_event type ref to cl_phtmlb_popupmenu.

popup_event = CL_HTMLB_MANAGER=>get_event_ex( request ).

gives

"The result type of the function method cannot be converted into the type of POPUP_EVENT"

However,

popup_event TYPE REF TO IF_HTMLB_DATA

works, but doesn't give anything but the IF_HTMLB_DATA interface attributes. The SELECTED_TEXT is still visible as an attribute of CL_PHTMLB_POPUPMENU in the debugger, but cannot be referenced in the code...

I'm on 620 SP 53... guess I'll have to check the OSS...

[thomas_jung · Accepted solution]

Nope it will work on your release. You are missing one very special little character:

Not:

popup_event = CL_HTMLB_MANAGER=>get_event_ex( request ).

Correct:

popup_event ?= CL_HTMLB_MANAGER=>get_event_ex( request ).

Notice the question mark. That isn't a typo. That is the casting operator. That allows you cast between similar objects (called Polymorphism). Since CL_PHTMLB_POPUPMENU contains the IF_HTMLB_DATA interface, you have able to cast into this more specific object instance.

[Former Member · Accepted solution]

Thanks; it works!! Guess we learned something new today...

[thomas_jung · Accepted solution]

I should note however that it probably isn't a good idea to cast from GET_EVENT_EX directly into CL_PHTMLB_POPUPMENU. If the event comes from a different element you could get a casting expection.

It is safer to cast into a general IF_HTMLB_DATA object, check the ID or TYPE of the event and then cast into the correct specific object instance.