Cleanup FWL Event and Message code.

xfa/fwl/core/cfwl_listbox.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_listbox.h"
 
 #include <algorithm>
 #include <memory>
@@ skipping 754 matching lines @@
            FWL_STYLEEXT_LTB_ShowScrollBarFocus) ||
          (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused);
 }
 
 void CFWL_ListBox::OnProcessMessage(CFWL_Message* pMessage) {
   if (!pMessage)
     return;
   if (!IsEnabled())
     return;
 
-  CFWL_MessageType dwMsgCode = pMessage->GetClassID();
-  switch (dwMsgCode) {
-    case CFWL_MessageType::SetFocus:
+  switch (pMessage->GetType()) {
+    case CFWL_Message::Type::SetFocus:
       OnFocusChanged(pMessage, true);
       break;
-    case CFWL_MessageType::KillFocus:
+    case CFWL_Message::Type::KillFocus:
       OnFocusChanged(pMessage, false);
       break;
-    case CFWL_MessageType::Mouse: {
+    case CFWL_Message::Type::Mouse: {
       CFWL_MsgMouse* pMsg = static_cast<CFWL_MsgMouse*>(pMessage);
       switch (pMsg->m_dwCmd) {
         case FWL_MouseCommand::LeftButtonDown:
           OnLButtonDown(pMsg);
           break;
         case FWL_MouseCommand::LeftButtonUp:
           OnLButtonUp(pMsg);
           break;
         default:
           break;
       }
       break;
     }
-    case CFWL_MessageType::MouseWheel:
+    case CFWL_Message::Type::MouseWheel:
       OnMouseWheel(static_cast<CFWL_MsgMouseWheel*>(pMessage));
       break;
-    case CFWL_MessageType::Key: {
+    case CFWL_Message::Type::Key: {
       CFWL_MsgKey* pMsg = static_cast<CFWL_MsgKey*>(pMessage);
       if (pMsg->m_dwCmd == FWL_KeyCommand::KeyDown)
         OnKeyDown(pMsg);
       break;
     }
     default:
       break;
   }
   CFWL_Widget::OnProcessMessage(pMessage);
 }
 
 void CFWL_ListBox::OnProcessEvent(CFWL_Event* pEvent) {
   if (!pEvent)
     return;
-  if (pEvent->GetClassID() != CFWL_EventType::Scroll)
+  if (pEvent->GetType() != CFWL_Event::Type::Scroll)
     return;
 
   CFWL_Widget* pSrcTarget = pEvent->m_pSrcTarget;
   if ((pSrcTarget == m_pVertScrollBar.get() && m_pVertScrollBar) ||
       (pSrcTarget == m_pHorzScrollBar.get() && m_pHorzScrollBar)) {
     CFWL_EvtScroll* pScrollEvent = static_cast<CFWL_EvtScroll*>(pEvent);
     OnScroll(static_cast<CFWL_ScrollBar*>(pSrcTarget),
              pScrollEvent->m_iScrollCode, pScrollEvent->m_fPos);
   }
 }
@@ skipping 116 matching lines @@
   SetFocusItem(pItem);
   ScrollToVisible(pItem);
 
   CFX_RectF rtInvalidate;
   rtInvalidate.Set(0, 0, m_pProperties->m_rtWidget.width,
                    m_pProperties->m_rtWidget.height);
   Repaint(&rtInvalidate);
 }
 
 bool CFWL_ListBox::OnScroll(CFWL_ScrollBar* pScrollBar,
-                            FWL_SCBCODE dwCode,
+                            CFWL_EvtScroll::Code dwCode,
                             FX_FLOAT fPos) {
   CFX_SizeF fs;
   pScrollBar->GetRange(&fs.x, &fs.y);
   FX_FLOAT iCurPos = pScrollBar->GetPos();
   FX_FLOAT fStep = pScrollBar->GetStepSize();
   switch (dwCode) {
-    case FWL_SCBCODE::Min: {
+    case CFWL_EvtScroll::Code::Min: {
       fPos = fs.x;
       break;
     }
-    case FWL_SCBCODE::Max: {
+    case CFWL_EvtScroll::Code::Max: {
       fPos = fs.y;
       break;
     }
-    case FWL_SCBCODE::StepBackward: {
+    case CFWL_EvtScroll::Code::StepBackward: {
       fPos -= fStep;
       if (fPos < fs.x + fStep / 2)
         fPos = fs.x;
       break;
     }
-    case FWL_SCBCODE::StepForward: {
+    case CFWL_EvtScroll::Code::StepForward: {
       fPos += fStep;
       if (fPos > fs.y - fStep / 2)
         fPos = fs.y;
       break;
     }
-    case FWL_SCBCODE::PageBackward: {
+    case CFWL_EvtScroll::Code::PageBackward: {
       fPos -= pScrollBar->GetPageSize();
       if (fPos < fs.x)
         fPos = fs.x;
       break;
     }
-    case FWL_SCBCODE::PageForward: {
+    case CFWL_EvtScroll::Code::PageForward: {
       fPos += pScrollBar->GetPageSize();
       if (fPos > fs.y)
         fPos = fs.y;
       break;
     }
-    case FWL_SCBCODE::Pos:
-    case FWL_SCBCODE::TrackPos:
-    case FWL_SCBCODE::None:
+    case CFWL_EvtScroll::Code::Pos:
+    case CFWL_EvtScroll::Code::TrackPos:
+    case CFWL_EvtScroll::Code::None:
       break;
-    case FWL_SCBCODE::EndScroll:
+    case CFWL_EvtScroll::Code::EndScroll:
       return false;
   }
   if (iCurPos != fPos) {
     pScrollBar->SetPos(fPos);
     pScrollBar->SetTrackPos(fPos);
     Repaint(&m_rtClient);
   }
   return true;
 }
 
@@ skipping 117 matching lines @@
 void CFWL_ListBox::DeleteAll() {
   m_ItemArray.clear();
 }
 
 uint32_t CFWL_ListBox::GetItemStates(CFWL_ListItem* pItem) {
   if (!pItem)
     return 0;
   return pItem->m_dwStates | pItem->m_dwCheckState;
 }