[ABAP] GOS-Container (Generic Object Services) für Anzeige von beliebigen Objekten in der Titlebar nutzen

Variante 1 (cl_gui_toolbar)

* https://www.tricktresor.de/blog/hacking-sapgui/
DATA: o_cnt_gos TYPE REF TO cl_gui_gos_container.
DATA: o_toolbar TYPE REF TO cl_gui_toolbar.

* Eventhandler für Toolbar-Buttons
CLASS lcl_events DEFINITION.
  PUBLIC SECTION.

    TYPES: ty_it_events TYPE STANDARD TABLE OF cntl_simple_event WITH DEFAULT KEY.

    CLASS-METHODS:
      on_function_selected FOR EVENT function_selected OF cl_gui_toolbar
        IMPORTING
            fcode.
ENDCLASS.

CLASS lcl_events IMPLEMENTATION.
  METHOD on_function_selected.
    MESSAGE fcode TYPE 'S'.
  ENDMETHOD.
ENDCLASS.

* Checkbox zum anzeigen / verstecken des GOS-Containers
PARAMETERS: p_chk1 AS CHECKBOX USER-COMMAND cmd1.

INITIALIZATION.
* GOS-Container mit Breite = 300
  o_cnt_gos = NEW #( width = 300 ).

* Toolbar horizontal mit Buttons
  o_toolbar = NEW #( parent       = o_cnt_gos
                     display_mode = cl_gui_toolbar=>m_mode_horizontal ).

  o_toolbar->add_button( fcode     = 'BTN1'
                         icon      = icon_open
                         butn_type = cntb_btype_button ).

  o_toolbar->add_button( fcode     = ''
                         icon      = ''
                         butn_type = cntb_btype_sep ).

  o_toolbar->add_button( fcode     = 'BTN2'
                         icon      = icon_system_save
                         butn_type = cntb_btype_button ).

  DATA(it_events) = VALUE lcl_events=>ty_it_events( ( eventid    = cl_gui_toolbar=>m_id_function_selected
                                                      appl_event = abap_true ) ).

  o_toolbar->set_registered_events( events = it_events ).

  SET HANDLER lcl_events=>on_function_selected FOR o_toolbar.

AT SELECTION-SCREEN.
  CASE sy-ucomm.
* Checkbox geklickt -> GOS-Container ein-/ausblenden
    WHEN 'CMD1'.
      o_cnt_gos->set_visible( COND abap_bool( WHEN p_chk1 = abap_true THEN abap_false ELSE abap_true ) ).
  ENDCASE.

START-OF-SELECTION.
  WRITE: / p_chk1.

Variante 2 (cl_gui_textedit)

DATA: o_cnt_gos TYPE REF TO cl_gui_gos_container.
DATA: o_edit TYPE REF TO cl_gui_textedit.

PARAMETERS: p_matnr type matnr.

INITIALIZATION.

* Fensterbreite des SAP-Fensters
  DATA(lv_x_metric) = cl_gui_cfw=>compute_metric_from_dynp( metric = cl_gui_control=>metric_pixel
                                                            x_or_y = 'X'
                                                            in = sy-scols ).

* GOS-Container mit akt. Fensterbreite
  o_cnt_gos = NEW #( width = lv_x_metric ).

* Editorzeile im Titel
  o_edit = NEW #( wordwrap_mode              = cl_gui_textedit=>wordwrap_at_windowborder
                  wordwrap_to_linebreak_mode = cl_gui_textedit=>true
                  parent                     = o_cnt_gos ).

* feste Zeichenbreite
  o_edit->set_font_fixed( mode = cl_gui_textedit=>true ).
* Anzeige von Toolbar und Statusbar des Texteditors unterdrücken
  o_edit->set_toolbar_mode( toolbar_mode = cl_gui_textedit=>false ).
  o_edit->set_statusbar_mode( statusbar_mode = cl_gui_textedit=>false ).
  o_edit->set_textstream( 'Testtext' ).

START-OF-SELECTION.
  IF o_edit IS BOUND.
* Text aus Editorzeile holen
    DATA(lv_text) = ||.

    o_edit->get_textstream( IMPORTING text = lv_text ).
    cl_gui_cfw=>flush( ).

    WRITE: / lv_text.
  ENDIF.

Variante 3 (cl_gui_html_viewer)

DATA: o_cnt_gos TYPE REF TO cl_gui_gos_container.
DATA: o_html TYPE REF TO cl_gui_html_viewer.

PARAMETERS: p_matnr TYPE matnr.

INITIALIZATION.

* Zeilen und Spalten in Pixel umrechnen
  DATA(lv_x_metric) = cl_gui_cfw=>compute_metric_from_dynp( metric = cl_gui_control=>metric_pixel
                                                            x_or_y = 'X'
                                                            in = sy-scols ).

* GOS-Container mit akt. Fensterbreite
  o_cnt_gos = NEW #( width = lv_x_metric ).

* HTML im Titlebar anzeigen
  o_html = NEW cl_gui_html_viewer( parent = o_cnt_gos ).

  DATA(it_html) = VALUE w3_htmltab( ( '<html><head><style>body { margin: 0; background-color: #00BBCC; color: #001122; font: 18px "Courier" }</style></head>' )
                                    ( '<body>Test</body></html>' ) ).
  DATA: lv_url TYPE swk_url.

  o_html->load_data( IMPORTING
                      assigned_url = lv_url
                    CHANGING
                      data_table   = it_html ).

  o_html->show_url( lv_url ).

START-OF-SELECTION.
  WRITE: / p_matnr.