Cleanup FWL Event and Message code.

xfa/fwl/core/cfwl_edit.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_edit.h"
 
 #include <algorithm>
 #include <memory>
 #include <utility>
 #include <vector>
 
 #include "third_party/base/ptr_util.h"
 #include "third_party/base/stl_util.h"
 #include "xfa/fde/cfde_txtedtengine.h"
 #include "xfa/fde/fde_gedevice.h"
 #include "xfa/fde/fde_render.h"
 #include "xfa/fde/ifde_txtedtpage.h"
 #include "xfa/fgas/font/cfgas_gefont.h"
 #include "xfa/fwl/core/cfwl_app.h"
 #include "xfa/fwl/core/cfwl_caret.h"
+#include "xfa/fwl/core/cfwl_event.h"
 #include "xfa/fwl/core/cfwl_evtcheckword.h"
 #include "xfa/fwl/core/cfwl_evttextchanged.h"
-#include "xfa/fwl/core/cfwl_evttextfull.h"
 #include "xfa/fwl/core/cfwl_evtvalidate.h"
 #include "xfa/fwl/core/cfwl_msgkey.h"
 #include "xfa/fwl/core/cfwl_msgmouse.h"
 #include "xfa/fwl/core/cfwl_themebackground.h"
 #include "xfa/fwl/core/cfwl_themepart.h"
 #include "xfa/fwl/core/cfwl_widgetmgr.h"
 #include "xfa/fwl/core/ifwl_themeprovider.h"
 #include "xfa/fxfa/xfa_ffdoc.h"
 #include "xfa/fxfa/xfa_ffwidget.h"
 #include "xfa/fxgraphics/cfx_path.h"
@@ skipping 157 matching lines @@
   }
 }
 
 void CFWL_Edit::DrawSpellCheck(CFX_Graphics* pGraphics,
                                const CFX_Matrix* pMatrix) {
   pGraphics->SaveGraphState();
   if (pMatrix)
     pGraphics->ConcatMatrix(const_cast<CFX_Matrix*>(pMatrix));
 
   CFX_Color crLine(0xFFFF0000);
-  CFWL_EvtCheckWord checkWordEvent;
-  checkWordEvent.m_pSrcTarget = this;
+  CFWL_EvtCheckWord checkWordEvent(this);
 
   CFX_ByteString sLatinWord;
   CFX_Path pathSpell;
   pathSpell.Create();
 
   int32_t nStart = 0;
   FX_FLOAT fOffSetX = m_rtEngine.left - m_fScrollOffsetX;
   FX_FLOAT fOffSetY = m_rtEngine.top - m_fScrollOffsetY + m_fVAlignOffset;
 
   CFX_WideString wsSpell = GetText();
@@ skipping 230 matching lines @@
 }
 
 void CFWL_Edit::On_TextChanged(CFDE_TxtEdtEngine* pEdit,
                                FDE_TXTEDT_TEXTCHANGE_INFO& ChangeInfo) {
   if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_VAlignMask)
     UpdateVAlignment();
 
   CFX_RectF rtTemp;
   GetClientRect(rtTemp);
 
-  CFWL_EvtTextChanged event;
-  event.m_pSrcTarget = this;
-  event.nChangeType = ChangeInfo.nChangeType;
-  event.wsInsert = ChangeInfo.wsInsert;
-  event.wsDelete = ChangeInfo.wsDelete;
+  CFWL_EvtTextChanged event(this);
   event.wsPrevText = ChangeInfo.wsPrevText;
   DispatchEvent(&event);
 
   LayoutScrollBar();
   Repaint(&rtTemp);
 }
 
 void CFWL_Edit::On_SelChanged(CFDE_TxtEdtEngine* pEdit) {
   CFX_RectF rtTemp;
   GetClientRect(rtTemp);
@@ skipping 25 matching lines @@
 void CFWL_Edit::On_AddDoRecord(CFDE_TxtEdtEngine* pEdit,
                                IFDE_TxtEdtDoRecord* pRecord) {
   AddDoRecord(pRecord);
 }
 
 bool CFWL_Edit::On_Validate(CFDE_TxtEdtEngine* pEdit, CFX_WideString& wsText) {
   CFWL_Widget* pDst = GetOuter();
   if (!pDst)
     pDst = this;
 
-  CFWL_EvtValidate event;
-  event.pDstWidget = pDst;
-  event.m_pSrcTarget = this;
+  CFWL_EvtValidate event(this);
   event.wsInsert = wsText;
   event.bValidate = true;
   DispatchEvent(&event);
   return event.bValidate;
 }
 
 void CFWL_Edit::SetScrollOffset(FX_FLOAT fScrollOffset) {
   m_fScrollOffsetY = fScrollOffset;
 }
 
@@ skipping 752 matching lines @@
 
 void CFWL_Edit::ClearRecord() {
   m_iCurRecord = -1;
   m_DoRecords.clear();
 }
 
 void CFWL_Edit::ProcessInsertError(int32_t iError) {
   if (iError != -2)
     return;
 
-  CFWL_EvtTextFull textFullEvent;
-  textFullEvent.m_pSrcTarget = this;
+  CFWL_Event textFullEvent(CFWL_Event::Type::TextFull, this);
   DispatchEvent(&textFullEvent);
 }
 
 void CFWL_Edit::OnProcessMessage(CFWL_Message* pMessage) {
   if (!pMessage)
     return;
 
-  CFWL_MessageType dwMsgCode = pMessage->GetClassID();
-  switch (dwMsgCode) {
-    case CFWL_MessageType::SetFocus:
-    case CFWL_MessageType::KillFocus:
-      OnFocusChanged(pMessage, dwMsgCode == CFWL_MessageType::SetFocus);
+  switch (pMessage->GetType()) {
+    case CFWL_Message::Type::SetFocus:
+      OnFocusChanged(pMessage, true);
       break;
-    case CFWL_MessageType::Mouse: {
+    case CFWL_Message::Type::KillFocus:
+      OnFocusChanged(pMessage, false);
+      break;
+    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;
         case FWL_MouseCommand::LeftButtonDblClk:
           OnButtonDblClk(pMsg);
           break;
         case FWL_MouseCommand::Move:
           OnMouseMove(pMsg);
           break;
         case FWL_MouseCommand::RightButtonDown:
           DoButtonDown(pMsg);
           break;
         default:
           break;
       }
       break;
     }
-    case CFWL_MessageType::Key: {
+    case CFWL_Message::Type::Key: {
       CFWL_MsgKey* pKey = static_cast<CFWL_MsgKey*>(pMessage);
       if (pKey->m_dwCmd == FWL_KeyCommand::KeyDown)
         OnKeyDown(pKey);
       else if (pKey->m_dwCmd == FWL_KeyCommand::Char)
         OnChar(pKey);
       break;
     }
     default:
       break;
   }
   CFWL_Widget::OnProcessMessage(pMessage);
 }
 
 void CFWL_Edit::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 169 matching lines @@
       }
       int32_t nCaret = m_EdtEngine.GetCaretPos();
 #if (_FX_OS_ == _FX_MACOSX_)
       m_EdtEngine.Delete(nCaret, true);
 #else
       m_EdtEngine.Delete(nCaret);
 #endif
       break;
     }
     case FWL_VKEY_F2:
-      break;
-    case FWL_VKEY_Tab: {
-      DispatchKeyEvent(pMsg);
-      break;
-    }
+    case FWL_VKEY_Tab:
     default:
       break;
   }
   if (MoveCaret != MC_MoveNone)
     m_EdtEngine.MoveCaretPos(MoveCaret, bShift, bCtrl);
 }
 
 void CFWL_Edit::OnChar(CFWL_MsgKey* pMsg) {
   if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_EDT_ReadOnly) ||
       (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)) {
@@ skipping 42 matching lines @@
       }
       iError = m_EdtEngine.Insert(nCaret, &c, 1);
       break;
     }
   }
   if (iError < 0)
     ProcessInsertError(iError);
 }
 
 bool CFWL_Edit::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)
     return true;
 
   pScrollBar->SetPos(fPos);
   pScrollBar->SetTrackPos(fPos);
   UpdateOffset(pScrollBar, fPos - iCurPos);
   UpdateCaret();
 
   CFX_RectF rect;
   GetWidgetRect(rect);
   CFX_RectF rtInvalidate;
   rtInvalidate.Set(0, 0, rect.width + 2, rect.height + 2);
   Repaint(&rtInvalidate);
   return true;
 }