Move the message definitions to their own files.

xfa/fwl/core/cfwl_message.h

Index: xfa/fwl/core/cfwl_message.h
diff --git a/xfa/fwl/core/cfwl_message.h b/xfa/fwl/core/cfwl_message.h
index 56e8185c2958adcc5ed7a70dd05fc3b4cb108d68..1ad43a6d89332f0786e70192c50266fe48918516 100644
--- a/xfa/fwl/core/cfwl_message.h
+++ b/xfa/fwl/core/cfwl_message.h
@@ -7,6 +7,8 @@
 #ifndef XFA_FWL_CORE_CFWL_MESSAGE_H_
 #define XFA_FWL_CORE_CFWL_MESSAGE_H_
 
+#include <memory>
+
 #include "core/fxcrt/fx_basic.h"
 #include "core/fxcrt/fx_string.h"
 #include "core/fxcrt/fx_system.h"
@@ -21,21 +23,6 @@ enum class CFWL_MessageType {
   SetFocus
 };
 
-enum class FWL_MouseCommand {
-  LeftButtonDown,
-  LeftButtonUp,
-  LeftButtonDblClk,
-  RightButtonDown,
-  RightButtonUp,
-  RightButtonDblClk,
-  Move,
-  Enter,
-  Leave,
-  Hover
-};
-
-enum class FWL_KeyCommand { KeyDown, KeyUp, Char };
-
 class IFWL_Widget;
 
 class CFWL_Message {
@@ -43,84 +30,13 @@ class CFWL_Message {
   CFWL_Message();
   virtual ~CFWL_Message();
 
-  virtual CFWL_Message* Clone();
+  virtual std::unique_ptr<CFWL_Message> Clone();
   virtual CFWL_MessageType GetClassID() const;
 
-  uint32_t Release();
-  CFWL_Message* Retain();
-
   IFWL_Widget* m_pSrcTarget;
   IFWL_Widget* m_pDstTarget;
   uint32_t m_dwExtend;
-
- private:
-  uint32_t m_dwRefCount;
 };
 
-inline CFWL_Message::CFWL_Message()
-    : m_pSrcTarget(nullptr),
-      m_pDstTarget(nullptr),
-      m_dwExtend(0),
-      m_dwRefCount(1) {}
-
-inline CFWL_Message::~CFWL_Message() {}
-
-inline CFWL_Message* CFWL_Message::Clone() {
-  return nullptr;
-}
-
-inline CFWL_MessageType CFWL_Message::GetClassID() const {
-  return CFWL_MessageType::None;
-}
-
-inline uint32_t CFWL_Message::Release() {
-  m_dwRefCount--;
-  uint32_t dwRefCount = m_dwRefCount;
-  if (!m_dwRefCount)
-    delete this;
-  return dwRefCount;
-}
-
-inline CFWL_Message* CFWL_Message::Retain() {
-  m_dwRefCount++;
-  return this;
-}
-
-#define FWL_MESSAGE_DEF(classname, msgType, ...)                           \
-  class classname : public CFWL_Message {                                  \
-   public:                                                                 \
-    classname();                                                           \
-    ~classname() override;                                                 \
-    CFWL_Message* Clone() override;                                        \
-    CFWL_MessageType GetClassID() const override;                          \
-    __VA_ARGS__                                                            \
-  };                                                                       \
-  inline classname::classname() {}                                         \
-  inline classname::~classname() {}                                        \
-  inline CFWL_Message* classname::Clone() { return new classname(*this); } \
-  inline CFWL_MessageType classname::GetClassID() const { return msgType; }
-
-FWL_MESSAGE_DEF(CFWL_MsgMouse, CFWL_MessageType::Mouse, FX_FLOAT m_fx;
-                FX_FLOAT m_fy;
-                uint32_t m_dwFlags;
-                FWL_MouseCommand m_dwCmd;)
-
-FWL_MESSAGE_DEF(CFWL_MsgMouseWheel, CFWL_MessageType::MouseWheel, FX_FLOAT m_fx;
-                FX_FLOAT m_fy;
-                FX_FLOAT m_fDeltaX;
-                FX_FLOAT m_fDeltaY;
-                uint32_t m_dwFlags;)
-
-FWL_MESSAGE_DEF(CFWL_MsgSetFocus,
-                CFWL_MessageType::SetFocus,
-                IFWL_Widget* m_pKillFocus;)
-
-FWL_MESSAGE_DEF(CFWL_MsgKillFocus,
-                CFWL_MessageType::KillFocus,
-                IFWL_Widget* m_pSetFocus;)
-
-FWL_MESSAGE_DEF(CFWL_MsgKey, CFWL_MessageType::Key, uint32_t m_dwKeyCode;
-                uint32_t m_dwFlags;
-                FWL_KeyCommand m_dwCmd;)
 
 #endif  // XFA_FWL_CORE_CFWL_MESSAGE_H_