Remove CLASSHASH defines in favour of an enum class.

xfa/fwl/core/ifwl_widget.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_WIDGET_H_
 #define XFA_FWL_CORE_IFWL_WIDGET_H_
 
 #include <memory>
 
 #include "core/fxcrt/include/fx_basic.h"
 #include "core/fxcrt/include/fx_coordinates.h"
 #include "core/fxcrt/include/fx_system.h"
 #include "xfa/fwl/core/fwl_error.h"
 #include "xfa/fwl/core/fwl_widgetimp.h"
 
 // FWL contains three parallel inheritance hierarchies, which reference each
 // other via pointers as follows:
 //
 //                   m_pIface                m_pImpl
 //      CFWL_Widget ----------> IFWL_Widget ----------> CFWL_WidgetImp
 //           |                       |                       |
 //           A                       A                       A
 //           |                       |                       |
 //      CFWL_...                IFWL_...                CFWL_...Imp
 //
 
+enum class FWL_Type {
+  Unknown = 0,
+
+  Barcode,
+  Caret,
+  CheckBox,
+  ComboBox,
+  DateTimePicker,
+  Edit,
+  Form,
+  FormProxy,
+  ListBox,
+  MonthCalendar,
+  PictureBox,
+  PushButton,
+  ScrollBar,
+  SpinButton,
+  ToolTip
+};
+
 class CFWL_WidgetImp;
 class CFX_Graphics;
 class IFWL_App;
 class IFWL_DataProvider;
 class IFWL_Form;
 class IFWL_ThemeProvider;
 class IFWL_WidgetDelegate;
 
 class IFWL_Widget {
  public:
@@ skipping 33 matching lines @@
   IFWL_ThemeProvider* GetThemeProvider();
   FWL_Error SetThemeProvider(IFWL_ThemeProvider* pThemeProvider);
   FWL_Error SetDataProvider(IFWL_DataProvider* pDataProvider);
   IFWL_WidgetDelegate* SetDelegate(IFWL_WidgetDelegate* pDelegate);
   IFWL_App* GetOwnerApp() const;
   CFX_SizeF GetOffsetFromParent(IFWL_Widget* pParent);
 
   // These call into equivalent polymorphic methods of m_pImpl. There
   // should be no need to override these in subclasses.
   FWL_Error GetClassName(CFX_WideString& wsClass) const;
-  uint32_t GetClassID() const;
+  FWL_Type GetClassID() const;
   FX_BOOL IsInstance(const CFX_WideStringC& wsClass) const;
   FWL_Error Initialize();
   FWL_Error Finalize();
 
   CFWL_WidgetImp* GetImpl() const { return m_pImpl.get(); }
 
  protected:
   // Takes ownership of |pImpl|.
   void SetImpl(CFWL_WidgetImp* pImpl) { m_pImpl.reset(pImpl); }
 
  private:
   std::unique_ptr<CFWL_WidgetImp> m_pImpl;
 };
 
 #endif  // XFA_FWL_CORE_IFWL_WIDGET_H_