Cleanup FWL Event and Message code.

xfa/fwl/core/cfwl_checkbox.cpp

 // 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
 
 #include "xfa/fwl/core/cfwl_checkbox.h"
 
 #include <algorithm>
 #include <memory>
 #include <utility>
 
 #include "third_party/base/ptr_util.h"
 #include "xfa/fde/tto/fde_textout.h"
 #include "xfa/fwl/core/cfwl_app.h"
-#include "xfa/fwl/core/cfwl_evtcheckstatechanged.h"
+#include "xfa/fwl/core/cfwl_event.h"
 #include "xfa/fwl/core/cfwl_msgkey.h"
 #include "xfa/fwl/core/cfwl_msgmouse.h"
 #include "xfa/fwl/core/cfwl_notedriver.h"
 #include "xfa/fwl/core/cfwl_themebackground.h"
 #include "xfa/fwl/core/cfwl_themetext.h"
 #include "xfa/fwl/core/cfwl_widgetmgr.h"
 #include "xfa/fwl/core/ifwl_themeprovider.h"
 
 namespace {
 
@@ skipping 305 matching lines @@
         m_pProperties->m_dwStates |= FWL_STATE_CKB_Neutral;
       else
         m_pProperties->m_dwStates |= FWL_STATE_CKB_Checked;
     }
   }
 
   Repaint(&m_rtClient);
   if (dwFirststate == m_pProperties->m_dwStates)
     return;
 
-  CFWL_EvtCheckStateChanged wmCheckBoxState;
+  CFWL_Event wmCheckBoxState(CFWL_EventType::CheckStateChanged);
   wmCheckBoxState.m_pSrcTarget = this;
   DispatchEvent(&wmCheckBoxState);
 }
 
 void CFWL_CheckBox::OnProcessMessage(CFWL_Message* pMessage) {
   if (!pMessage)
     return;
 
   switch (pMessage->GetClassID()) {
     case CFWL_MessageType::SetFocus:
@@ skipping 114 matching lines @@
 void CFWL_CheckBox::OnMouseLeave() {
   if (m_bBtnDown)
     m_pProperties->m_dwStates |= FWL_STATE_CKB_Hovered;
   else
     m_pProperties->m_dwStates &= ~FWL_STATE_CKB_Hovered;
 
   Repaint(&m_rtBox);
 }
 
 void CFWL_CheckBox::OnKeyDown(CFWL_MsgKey* pMsg) {
-  if (pMsg->m_dwKeyCode == FWL_VKEY_Tab) {
-    DispatchKeyEvent(pMsg);
+  if (pMsg->m_dwKeyCode == FWL_VKEY_Tab)
     return;
-  }
   if (pMsg->m_dwKeyCode == FWL_VKEY_Return ||
       pMsg->m_dwKeyCode == FWL_VKEY_Space) {
     NextStates();
   }
 }