Unify the three CFWL_EventType::SelectChange classes.

xfa/fwl/core/ifwl_combobox.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef XFA_FWL_CORE_IFWL_COMBOBOX_H_
 #define XFA_FWL_CORE_IFWL_COMBOBOX_H_
 
 #include "xfa/fwl/core/ifwl_comboboxproxy.h"
@@ skipping 27 matching lines @@
 #define FWL_STYLEEXT_CMB_EditVAlignMask (3L << 6)
 #define FWL_STYLEEXT_CMB_EditHAlignModeMask (3L << 8)
 #define FWL_STYLEEXT_CMB_ListItemLeftAlign (0L << 10)
 #define FWL_STYLEEXT_CMB_ListItemCenterAlign (1L << 10)
 #define FWL_STYLEEXT_CMB_ListItemRightAlign (2L << 10)
 #define FWL_STYLEEXT_CMB_ListItemAlignMask (3L << 10)
 #define FWL_STYLEEXT_CMB_ListItemText (0L << 12)
 #define FWL_STYLEEXT_CMB_ListItemIconText (1L << 12)
 #define FWL_STYLEEXT_CMB_ReadOnly (1L << 13)
 
-FWL_EVENT_DEF(CFWL_EvtCmbSelChanged,
-              CFWL_EventType::SelectChanged,
-              CFX_Int32Array iArraySels;
-              bool bLButtonUp;)
-
 class IFWL_ComboBoxDP : public IFWL_ListBoxDP {
  public:
   virtual FX_FLOAT GetListHeight(IFWL_Widget* pWidget) = 0;
 };
 
 class IFWL_ComboBox : public IFWL_Widget {
  public:
   explicit IFWL_ComboBox(const IFWL_App* app,
                          std::unique_ptr<CFWL_WidgetProperties> properties);
   ~IFWL_ComboBox() override;
@@ skipping 108 matching lines @@
   IFWL_ComboBoxProxy* m_pComboBoxProxy;  // Can this be a unique_ptr?
   bool m_bLButtonDown;
   bool m_bUpFormHandler;
   int32_t m_iCurSel;
   int32_t m_iBtnState;
   FX_FLOAT m_fComboFormHandler;
   FX_FLOAT m_fItemHeight;
 };
 
 #endif  // XFA_FWL_CORE_IFWL_COMBOBOX_H_