• ABAPREUSE_ALV_GRID_DISPLAY的i_callback_user_command的调用跟踪摘抄


    1、跟踪调用关系列表

      主程序 类型 处理过程名 代码单元
    1 ZHRR0005 EVENT END-OF-SELECTION    
    2 SAPLSLVC_FULLSCREEN FUNCTION REUSE_ALV_GRID_DISPLAY   LSLVC_FULLSCREENU01
    3 SAPLSLVC_FULLSCREEN MODULE (PAI) PAI   LSLVC_FULLSCREENI01
    4 SAPLSLVC_FULLSCREEN Form PAI   LSLVC_FULLSCREENF01
    5 CL_GUI_CFW METHOD DISPATH CL_GUI_CFW CL_GUI_CFW====================CM001
    6 CL_GUI_ALV_GRID METHOD DISPATH CL_GUI_ALV_GRID  
    7 SAPLSLVC_FULLSCREEN METHOD HANDLE_DOUBLE_CLICK LCL_EVENT_RECEIVER LSLVC_FULLSCREENTOP
    8 SAPLSLVC_FULLSCREEN FORM METHOD_DOUBLE_CLICK   LSLVC_FULLSCREENF02
    9 SAPLSLVC_FULLSCREEN FORM USER_COMMAND   LSLVC_FULLSCREENF01
    10 ZHRR0005 FORM USER_COMMAND    

     2、各个函数代码摘抄(红色为断点处)
    第2步代码摘抄
    function reuse_alv_grid_display.                            "#EC *
    .....
      if i_screen_start_column is initial and
         i_screen_start_line   is initial and
         i_screen_start_column   is initial and
         i_screen_end_line     is initial.
        gt_grid-flg_popup = space.
        call screen 500.
      else.
        gt_grid-flg_popup = 'X'.
        call screen 700
                  starting at i_screen_start_column i_screen_start_line
                  ending   at i_screen_end_column i_screen_end_line.
      endif.
    .....
    endfunction.

    第3步代码摘抄
    屏幕500
    process after input.
      module pai.
    module pai input.
     
    perform pai.
    endmodule.                             " PAI  INPUT

    第4步代码摘抄
    form pai.
    .....
          when '&IC1'.
            if not gt_grid-s_layout-f2code is initial.
              perform method_double_click using l_okcode.
            endif.
          when others.
            if l_okcode(4) eq '%_GC'.
              call method cl_gui_cfw=>dispatch.
              l_okcode = g_temp_ok_code.    "via double_click
            else.
              perform user_command using l_okcode lflg_refresh lflg_exit
                                         ls_stable.
              if lflg_exit = 'X'.
                e_exit_caused_by_caller = 'X'.
                perform exit.
              else.
    *           IF LFLG_REFRESH = 'X'.
                if not lflg_refresh is initial.
                  if lflg_refresh = 'X'.
                    call method gt_grid-grid->refresh_table_display
                      exporting
                        is_stable = ls_stable.
                  elseif lflg_refresh = 'S'.
                    call method gt_grid-grid->refresh_table_display
                      exporting
                        is_stable      = ls_stable
                        i_soft_refresh = 'X'.
                  endif.
                  if not gt_grid-i_callback_top_of_page is initial.
                    call method gt_grid-grid->list_processing_events
                      exporting
                        i_event_name = 'TOP_OF_PAGE'
                        i_dyndoc_id  = gt_grid-top.
                  endif.
                  if not gt_grid-i_callback_end_of_list is initial.
                    call method gt_grid-grid->list_processing_events
                      exporting
                        i_event_name = 'END_OF_LIST'
                        i_dyndoc_id  = gt_grid-bottom.
                  endif.
                endif.
              endif.
            endif.
    ....
    endform.

    第5步代码摘抄(CL_GUI_CFW)
    METHOD DISPATCH .
       if  IS_SHELLEVENT = 'X' and eventid = 15.
          call method handle_dragdrop_event
            exporting
               SHELLID           = MY_SHELL
               CARGO             = CARGO.
       else.
    *   Notify object
        CALL METHOD CFW_SUBSCRIBER-REF->DISPATCH
          EXPORTING
            EVENTID           = EVENTID
            IS_SHELLEVENT     = IS_SHELLEVENT
            CARGO             = CARGO
            IS_SYSTEMDISPATCH = SPACE.
       endif.
       call method pop_event
             exporting current_event = l_event.
    ...
    ENDMETHOD.

    第6步代码摘抄(CL_GUI_ALV_GRID)
    METHOD DISPATCH .
          call method cl_gui_cfw=>flush.
          append ls_row to lt_row.
            call method me->map_row_to_roid
              exporting
                it_index_rows = lt_row
              importing
                et_row_no     = lt_roid.
            read table lt_roid into ls_row_no index 1.

          read table m_cl_variant->mt_fieldcatalog into ls_fieldcat
                     with key fieldname = ls_col-fieldname.

          if sy-subrc eq 0.
            if not mr_trace is initial.
              call method mr_trace->add_trace_item
                exporting
                  i_trace_item = 'EVENT: DOUBLE_CLICK'
                  ir_variant   = m_cl_variant
                  it_data      = mt_data
                  it_info      = mt_info.
            endif.
            raise event double_click exporting e_row     = ls_row
                                               e_column  = ls_col
                                               es_row_no = ls_row_no.
    ...
    ENDMETHOD.


    第7步代码摘抄
      method handle_after_user_command.
        g_after = 'A'.
        perform event_exit_check using e_ucomm
                                       g_after.
        if g_after = 'X'.
          perform method_user_command using e_ucomm.
        endif.

        if not gt_grid-i_callback_top_of_page is initial.
          call method gt_grid-grid->list_processing_events
            EXPORTING
              i_event_name = 'TOP_OF_PAGE'
              i_dyndoc_id  = gt_grid-top.
        endif.
        if not gt_grid-i_callback_end_of_list is initial.
          call method gt_grid-grid->list_processing_events
            EXPORTING
              i_event_name = 'END_OF_LIST'
              i_dyndoc_id  = gt_grid-bottom.
        endif.

        clear g_after.
      endmethod.                    "handle_after_user_command
    *
      method handle_data_changed.
        perform method_data_changed using er_data_changed.
      endmethod.                    "handle_data_changed
    *
      method handle_top_of_page.
        perform method_top_of_page using e_dyndoc_id.
      endmethod.                    "handle_top_of_page

      method handle_end_of_page.
        perform method_end_of_page.
      endmethod.                    "handle_end_of_page

      method handle_double_click.
        perform method_double_click using g_temp_ok_code.
      endmethod.                    "handle_double_click

    第8步代码摘抄
    form method_double_click using r_ucomm type sy-ucomm.
      data: l_ucomm type sy-ucomm.
      data: l_save_ucomm   type sy-ucomm.
      data: lflg_refresh(1) type c.
      data: lflg_exit(1) type c.
      data: ls_stable type lvc_s_stbl.
    *
      l_ucomm = gt_grid-s_layout-f2code.
      if l_ucomm(1) = '&'.
        call method gt_grid-grid->set_function_code
          changing
            c_ucomm = l_ucomm.
      else.
        if l_ucomm = space.
          l_ucomm = '&IC1'.
        endif.
        l_save_ucomm = l_ucomm.
        perform user_command using l_ucomm
                                   lflg_refresh lflg_exit ls_stable.
        if l_ucomm ne l_save_ucomm.
          r_ucomm = l_ucomm.
        else.
          r_ucomm = space.
        endif.
        if lflg_exit = 'X'.
          e_exit_caused_by_caller = 'X'.
          perform exit.
        else.
          if lflg_refresh = 'X'.
            call method gt_grid-grid->refresh_table_display
              exporting
                is_stable = ls_stable.
          elseif lflg_refresh = 'S'.
            call method gt_grid-grid->refresh_table_display
              exporting
                is_stable      = ls_stable
                i_soft_refresh = 'X'.
          endif.
        endif.
      endif.
    endform.                               " METHOD_DOUBLE_CLICK

    第9步代码摘抄
    form user_command using r_ucomm type sy-ucomm
                            r_refresh
                            r_exit
                            rs_stable type lvc_s_stbl.
      data: ls_selfield type slis_selfield.
    *
      check not gt_grid-i_callback_user_command is initial.
      check not i_callback_program is initial.

      perform selfield_get using ls_selfield.
      if r_ucomm is initial.
        r_ucomm = '&IC1'.
      endif.

      perform (gt_grid-i_callback_user_command)
                                        in program (i_callback_program)
                                        using r_ucomm
                                              ls_selfield.

      rs_stable-row = ls_selfield-row_stable.
      rs_stable-col = ls_selfield-col_stable.

      r_refresh = ls_selfield-refresh.
      r_exit    = ls_selfield-exit.
    endform.                    "user_command

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  • 原文地址:https://www.cnblogs.com/xiaomaohai/p/6157162.html
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