Rename IFWL classes which do not have CFWL equivalents

xfa/fwl/core/ifwl_form.cpp

Index: xfa/fwl/core/ifwl_form.cpp
diff --git a/xfa/fwl/core/ifwl_form.cpp b/xfa/fwl/core/ifwl_form.cpp
deleted file mode 100644
index 535205d81ae67a4e7030548d601ac34c1d8b27ab..0000000000000000000000000000000000000000
--- a/xfa/fwl/core/ifwl_form.cpp
+++ /dev/null
@@ -1,639 +0,0 @@
-// 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/ifwl_form.h"
-
-#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_evtclose.h"
-#include "xfa/fwl/core/cfwl_msgmouse.h"
-#include "xfa/fwl/core/cfwl_notedriver.h"
-#include "xfa/fwl/core/cfwl_noteloop.h"
-#include "xfa/fwl/core/cfwl_sysbtn.h"
-#include "xfa/fwl/core/cfwl_themebackground.h"
-#include "xfa/fwl/core/cfwl_themepart.h"
-#include "xfa/fwl/core/cfwl_themetext.h"
-#include "xfa/fwl/core/cfwl_widgetmgr.h"
-#include "xfa/fwl/core/ifwl_formproxy.h"
-#include "xfa/fwl/core/ifwl_themeprovider.h"
-#include "xfa/fwl/theme/cfwl_widgettp.h"
-
-namespace {
-
-const int kSystemButtonSize = 21;
-const int kSystemButtonMargin = 5;
-const int kSystemButtonSpan = 2;
-
-}  // namespace
-
-namespace {
-
-const uint8_t kCornerEnlarge = 10;
-
-}  // namespace
-
-IFWL_Form::IFWL_Form(const CFWL_App* app,
-                     std::unique_ptr<CFWL_WidgetProperties> properties,
-                     IFWL_Widget* pOuter)
-    : IFWL_Widget(app, std::move(properties), pOuter),
-#if (_FX_OS_ == _FX_MACOSX_)
-      m_bMouseIn(false),
-#endif
-      m_pCloseBox(nullptr),
-      m_pMinBox(nullptr),
-      m_pMaxBox(nullptr),
-      m_pSubFocus(nullptr),
-      m_fCXBorder(0),
-      m_fCYBorder(0),
-      m_iCaptureBtn(-1),
-      m_iSysBox(0),
-      m_bLButtonDown(false),
-      m_bMaximized(false),
-      m_bSetMaximize(false),
-      m_bDoModalFlag(false) {
-  m_rtRelative.Reset();
-  m_rtRestore.Reset();
-
-  RegisterForm();
-  RegisterEventTarget(nullptr);
-}
-
-IFWL_Form::~IFWL_Form() {
-  UnregisterEventTarget();
-  UnRegisterForm();
-  RemoveSysButtons();
-}
-
-FWL_Type IFWL_Form::GetClassID() const {
-  return FWL_Type::Form;
-}
-
-bool IFWL_Form::IsInstance(const CFX_WideStringC& wsClass) const {
-  if (wsClass == CFX_WideStringC(FWL_CLASS_Form))
-    return true;
-  return IFWL_Widget::IsInstance(wsClass);
-}
-
-void IFWL_Form::GetWidgetRect(CFX_RectF& rect, bool bAutoSize) {
-  if (!bAutoSize) {
-    rect = m_pProperties->m_rtWidget;
-    return;
-  }
-
-  rect.Reset();
-  FX_FLOAT fCXBorder = GetBorderSize(true);
-  FX_FLOAT fCYBorder = GetBorderSize(false);
-  FX_FLOAT fEdge = GetEdgeWidth();
-  rect.height += fCYBorder + fEdge + fEdge;
-  rect.width += fCXBorder + fCXBorder + fEdge + fEdge;
-}
-
-void IFWL_Form::GetClientRect(CFX_RectF& rect) {
-  rect = m_pProperties->m_rtWidget;
-  rect.Offset(-rect.left, -rect.top);
-}
-
-void IFWL_Form::Update() {
-  if (m_iLock > 0)
-    return;
-  if (!m_pProperties->m_pThemeProvider)
-    m_pProperties->m_pThemeProvider = GetAvailableTheme();
-
-  Layout();
-}
-
-FWL_WidgetHit IFWL_Form::HitTest(FX_FLOAT fx, FX_FLOAT fy) {
-  GetAvailableTheme();
-
-  if (m_pCloseBox && m_pCloseBox->m_rtBtn.Contains(fx, fy))
-    return FWL_WidgetHit::CloseBox;
-  if (m_pMaxBox && m_pMaxBox->m_rtBtn.Contains(fx, fy))
-    return FWL_WidgetHit::MaxBox;
-  if (m_pMinBox && m_pMinBox->m_rtBtn.Contains(fx, fy))
-    return FWL_WidgetHit::MinBox;
-
-  CFX_RectF rtCap;
-  rtCap.Set(m_fCYBorder, m_fCXBorder,
-            0 - kSystemButtonSize * m_iSysBox - 2 * m_fCYBorder,
-            0 - m_fCXBorder);
-  if (rtCap.Contains(fx, fy))
-    return FWL_WidgetHit::Titlebar;
-  if ((m_pProperties->m_dwStyles & FWL_WGTSTYLE_Border) &&
-      (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_FRM_Resize)) {
-    FX_FLOAT fWidth = m_rtRelative.width - 2 * (m_fCYBorder + kCornerEnlarge);
-    FX_FLOAT fHeight = m_rtRelative.height - 2 * (m_fCXBorder + kCornerEnlarge);
-
-    CFX_RectF rt;
-    rt.Set(0, m_fCXBorder + kCornerEnlarge, m_fCYBorder, fHeight);
-    if (rt.Contains(fx, fy))
-      return FWL_WidgetHit::Left;
-
-    rt.Set(m_rtRelative.width - m_fCYBorder, m_fCXBorder + kCornerEnlarge,
-           m_fCYBorder, fHeight);
-    if (rt.Contains(fx, fy))
-      return FWL_WidgetHit::Right;
-
-    rt.Set(m_fCYBorder + kCornerEnlarge, 0, fWidth, m_fCXBorder);
-    if (rt.Contains(fx, fy))
-      return FWL_WidgetHit::Top;
-
-    rt.Set(m_fCYBorder + kCornerEnlarge, m_rtRelative.height - m_fCXBorder,
-           fWidth, m_fCXBorder);
-    if (rt.Contains(fx, fy))
-      return FWL_WidgetHit::Bottom;
-
-    rt.Set(0, 0, m_fCYBorder + kCornerEnlarge, m_fCXBorder + kCornerEnlarge);
-    if (rt.Contains(fx, fy))
-      return FWL_WidgetHit::LeftTop;
-
-    rt.Set(0, m_rtRelative.height - m_fCXBorder - kCornerEnlarge,
-           m_fCYBorder + kCornerEnlarge, m_fCXBorder + kCornerEnlarge);
-    if (rt.Contains(fx, fy))
-      return FWL_WidgetHit::LeftBottom;
-
-    rt.Set(m_rtRelative.width - m_fCYBorder - kCornerEnlarge, 0,
-           m_fCYBorder + kCornerEnlarge, m_fCXBorder + kCornerEnlarge);
-    if (rt.Contains(fx, fy))
-      return FWL_WidgetHit::RightTop;
-
-    rt.Set(m_rtRelative.width - m_fCYBorder - kCornerEnlarge,
-           m_rtRelative.height - m_fCXBorder - kCornerEnlarge,
-           m_fCYBorder + kCornerEnlarge, m_fCXBorder + kCornerEnlarge);
-    if (rt.Contains(fx, fy))
-      return FWL_WidgetHit::RightBottom;
-  }
-  return FWL_WidgetHit::Client;
-}
-
-void IFWL_Form::DrawWidget(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix) {
-  if (!pGraphics)
-    return;
-  if (!m_pProperties->m_pThemeProvider)
-    return;
-
-  IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider;
-  bool bInactive = !IsActive();
-  int32_t iState = bInactive ? CFWL_PartState_Inactive : CFWL_PartState_Normal;
-  if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_FRM_NoDrawClient) == 0)
-    DrawBackground(pGraphics, pTheme);
-
-#ifdef FWL_UseMacSystemBorder
-  return;
-#endif
-  CFWL_ThemeBackground param;
-  param.m_pWidget = this;
-  param.m_dwStates = iState;
-  param.m_pGraphics = pGraphics;
-  param.m_rtPart = m_rtRelative;
-  if (pMatrix)
-    param.m_matrix.Concat(*pMatrix);
-  if (m_pProperties->m_dwStyles & FWL_WGTSTYLE_Border) {
-    param.m_iPart = CFWL_Part::Border;
-    pTheme->DrawBackground(&param);
-  }
-  if ((m_pProperties->m_dwStyleExes & FWL_WGTSTYLE_EdgeMask) !=
-      FWL_WGTSTYLE_EdgeNone) {
-    CFX_RectF rtEdge;
-    GetEdgeRect(rtEdge);
-    param.m_iPart = CFWL_Part::Edge;
-    param.m_rtPart = rtEdge;
-    param.m_dwStates = iState;
-    pTheme->DrawBackground(&param);
-  }
-
-#if (_FX_OS_ == _FX_MACOSX_)
-  {
-    if (m_pCloseBox) {
-      param.m_iPart = CFWL_Part::CloseBox;
-      param.m_dwStates = m_pCloseBox->GetPartState();
-      if (m_pProperties->m_dwStates & FWL_WGTSTATE_Deactivated)
-        param.m_dwStates = CFWL_PartState_Disabled;
-      else if (CFWL_PartState_Normal == param.m_dwStates && m_bMouseIn)
-        param.m_dwStates = CFWL_PartState_Hovered;
-      param.m_rtPart = m_pCloseBox->m_rtBtn;
-      pTheme->DrawBackground(&param);
-    }
-    if (m_pMaxBox) {
-      param.m_iPart = CFWL_Part::MaximizeBox;
-      param.m_dwStates = m_pMaxBox->GetPartState();
-      if (m_pProperties->m_dwStates & FWL_WGTSTATE_Deactivated)
-        param.m_dwStates = CFWL_PartState_Disabled;
-      else if (CFWL_PartState_Normal == param.m_dwStates && m_bMouseIn)
-        param.m_dwStates = CFWL_PartState_Hovered;
-      param.m_rtPart = m_pMaxBox->m_rtBtn;
-      param.m_bMaximize = m_bMaximized;
-      pTheme->DrawBackground(&param);
-    }
-    if (m_pMinBox) {
-      param.m_iPart = CFWL_Part::MinimizeBox;
-      param.m_dwStates = m_pMinBox->GetPartState();
-      if (m_pProperties->m_dwStates & FWL_WGTSTATE_Deactivated)
-        param.m_dwStates = CFWL_PartState_Disabled;
-      else if (CFWL_PartState_Normal == param.m_dwStates && m_bMouseIn)
-        param.m_dwStates = CFWL_PartState_Hovered;
-      param.m_rtPart = m_pMinBox->m_rtBtn;
-      pTheme->DrawBackground(&param);
-    }
-    m_bMouseIn = false;
-  }
-#else
-  {
-    if (m_pCloseBox) {
-      param.m_iPart = CFWL_Part::CloseBox;
-      param.m_dwStates = m_pCloseBox->GetPartState();
-      param.m_rtPart = m_pCloseBox->m_rtBtn;
-      pTheme->DrawBackground(&param);
-    }
-    if (m_pMaxBox) {
-      param.m_iPart = CFWL_Part::MaximizeBox;
-      param.m_dwStates = m_pMaxBox->GetPartState();
-      param.m_rtPart = m_pMaxBox->m_rtBtn;
-      param.m_bMaximize = m_bMaximized;
-      pTheme->DrawBackground(&param);
-    }
-    if (m_pMinBox) {
-      param.m_iPart = CFWL_Part::MinimizeBox;
-      param.m_dwStates = m_pMinBox->GetPartState();
-      param.m_rtPart = m_pMinBox->m_rtBtn;
-      pTheme->DrawBackground(&param);
-    }
-  }
-#endif
-}
-
-IFWL_Widget* IFWL_Form::DoModal() {
-  const CFWL_App* pApp = GetOwnerApp();
-  if (!pApp)
-    return nullptr;
-
-  CFWL_NoteDriver* pDriver = pApp->GetNoteDriver();
-  if (!pDriver)
-    return nullptr;
-
-  m_pNoteLoop = pdfium::MakeUnique<CFWL_NoteLoop>();
-  m_pNoteLoop->SetMainForm(this);
-
-  pDriver->PushNoteLoop(m_pNoteLoop.get());
-  m_bDoModalFlag = true;
-  SetStates(FWL_WGTSTATE_Invisible, false);
-  pDriver->Run();
-
-#if _FX_OS_ != _FX_MACOSX_
-  pDriver->PopNoteLoop();
-#endif
-
-  m_pNoteLoop.reset();
-  return nullptr;
-}
-
-void IFWL_Form::EndDoModal() {
-  if (!m_pNoteLoop)
-    return;
-
-  m_bDoModalFlag = false;
-
-#if (_FX_OS_ == _FX_MACOSX_)
-  m_pNoteLoop->EndModalLoop();
-  const CFWL_App* pApp = GetOwnerApp();
-  if (!pApp)
-    return;
-
-  CFWL_NoteDriver* pDriver =
-      static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver());
-  if (!pDriver)
-    return;
-
-  pDriver->PopNoteLoop();
-  SetStates(FWL_WGTSTATE_Invisible, true);
-#else
-  SetStates(FWL_WGTSTATE_Invisible, true);
-  m_pNoteLoop->EndModalLoop();
-#endif
-}
-
-void IFWL_Form::DrawBackground(CFX_Graphics* pGraphics,
-                               IFWL_ThemeProvider* pTheme) {
-  CFWL_ThemeBackground param;
-  param.m_pWidget = this;
-  param.m_iPart = CFWL_Part::Background;
-  param.m_pGraphics = pGraphics;
-  param.m_rtPart = m_rtRelative;
-  param.m_rtPart.Deflate(m_fCYBorder, m_fCXBorder, m_fCYBorder, m_fCXBorder);
-  pTheme->DrawBackground(&param);
-}
-
-void IFWL_Form::RemoveSysButtons() {
-  delete m_pCloseBox;
-  m_pCloseBox = nullptr;
-  delete m_pMinBox;
-  m_pMinBox = nullptr;
-  delete m_pMaxBox;
-  m_pMaxBox = nullptr;
-}
-
-CFWL_SysBtn* IFWL_Form::GetSysBtnAtPoint(FX_FLOAT fx, FX_FLOAT fy) {
-  if (m_pCloseBox && m_pCloseBox->m_rtBtn.Contains(fx, fy))
-    return m_pCloseBox;
-  if (m_pMaxBox && m_pMaxBox->m_rtBtn.Contains(fx, fy))
-    return m_pMaxBox;
-  if (m_pMinBox && m_pMinBox->m_rtBtn.Contains(fx, fy))
-    return m_pMinBox;
-  return nullptr;
-}
-
-CFWL_SysBtn* IFWL_Form::GetSysBtnByState(uint32_t dwState) {
-  if (m_pCloseBox && (m_pCloseBox->m_dwState & dwState))
-    return m_pCloseBox;
-  if (m_pMaxBox && (m_pMaxBox->m_dwState & dwState))
-    return m_pMaxBox;
-  if (m_pMinBox && (m_pMinBox->m_dwState & dwState))
-    return m_pMinBox;
-  return nullptr;
-}
-
-CFWL_SysBtn* IFWL_Form::GetSysBtnByIndex(int32_t nIndex) {
-  if (nIndex < 0)
-    return nullptr;
-
-  CFX_ArrayTemplate<CFWL_SysBtn*> arrBtn;
-  if (m_pMinBox)
-    arrBtn.Add(m_pMinBox);
-  if (m_pMaxBox)
-    arrBtn.Add(m_pMaxBox);
-  if (m_pCloseBox)
-    arrBtn.Add(m_pCloseBox);
-  return arrBtn[nIndex];
-}
-
-int32_t IFWL_Form::GetSysBtnIndex(CFWL_SysBtn* pBtn) {
-  CFX_ArrayTemplate<CFWL_SysBtn*> arrBtn;
-  if (m_pMinBox)
-    arrBtn.Add(m_pMinBox);
-  if (m_pMaxBox)
-    arrBtn.Add(m_pMaxBox);
-  if (m_pCloseBox)
-    arrBtn.Add(m_pCloseBox);
-  return arrBtn.Find(pBtn);
-}
-
-void IFWL_Form::GetEdgeRect(CFX_RectF& rtEdge) {
-  rtEdge = m_rtRelative;
-  if (m_pProperties->m_dwStyles & FWL_WGTSTYLE_Border) {
-    FX_FLOAT fCX = GetBorderSize();
-    FX_FLOAT fCY = GetBorderSize(false);
-    rtEdge.Deflate(fCX, fCY, fCX, fCY);
-  }
-}
-
-void IFWL_Form::SetWorkAreaRect() {
-  m_rtRestore = m_pProperties->m_rtWidget;
-  CFWL_WidgetMgr* pWidgetMgr = GetOwnerApp()->GetWidgetMgr();
-  if (!pWidgetMgr)
-    return;
-
-  m_bSetMaximize = true;
-  Repaint(&m_rtRelative);
-}
-
-void IFWL_Form::Layout() {
-  GetRelativeRect(m_rtRelative);
-
-#ifndef FWL_UseMacSystemBorder
-  ResetSysBtn();
-#endif
-}
-
-void IFWL_Form::ResetSysBtn() {
-  m_fCXBorder =
-      *static_cast<FX_FLOAT*>(GetThemeCapacity(CFWL_WidgetCapacity::CXBorder));
-  m_fCYBorder =
-      *static_cast<FX_FLOAT*>(GetThemeCapacity(CFWL_WidgetCapacity::CYBorder));
-  RemoveSysButtons();
-
-  m_iSysBox = 0;
-  if (m_pProperties->m_dwStyles & FWL_WGTSTYLE_CloseBox) {
-    m_pCloseBox = new CFWL_SysBtn;
-    m_pCloseBox->m_rtBtn.Set(
-        m_rtRelative.right() - kSystemButtonMargin - kSystemButtonSize,
-        kSystemButtonMargin, kSystemButtonSize, kSystemButtonSize);
-    m_iSysBox++;
-  }
-  if (m_pProperties->m_dwStyles & FWL_WGTSTYLE_MaximizeBox) {
-    m_pMaxBox = new CFWL_SysBtn;
-    if (m_pCloseBox) {
-      m_pMaxBox->m_rtBtn.Set(
-          m_pCloseBox->m_rtBtn.left - kSystemButtonSpan - kSystemButtonSize,
-          m_pCloseBox->m_rtBtn.top, kSystemButtonSize, kSystemButtonSize);
-    } else {
-      m_pMaxBox->m_rtBtn.Set(
-          m_rtRelative.right() - kSystemButtonMargin - kSystemButtonSize,
-          kSystemButtonMargin, kSystemButtonSize, kSystemButtonSize);
-    }
-    m_iSysBox++;
-  }
-  if (m_pProperties->m_dwStyles & FWL_WGTSTYLE_MinimizeBox) {
-    m_pMinBox = new CFWL_SysBtn;
-    if (m_pMaxBox) {
-      m_pMinBox->m_rtBtn.Set(
-          m_pMaxBox->m_rtBtn.left - kSystemButtonSpan - kSystemButtonSize,
-          m_pMaxBox->m_rtBtn.top, kSystemButtonSize, kSystemButtonSize);
-    } else if (m_pCloseBox) {
-      m_pMinBox->m_rtBtn.Set(
-          m_pCloseBox->m_rtBtn.left - kSystemButtonSpan - kSystemButtonSize,
-          m_pCloseBox->m_rtBtn.top, kSystemButtonSize, kSystemButtonSize);
-    } else {
-      m_pMinBox->m_rtBtn.Set(
-          m_rtRelative.right() - kSystemButtonMargin - kSystemButtonSize,
-          kSystemButtonMargin, kSystemButtonSize, kSystemButtonSize);
-    }
-    m_iSysBox++;
-  }
-}
-
-void IFWL_Form::RegisterForm() {
-  const CFWL_App* pApp = GetOwnerApp();
-  if (!pApp)
-    return;
-
-  CFWL_NoteDriver* pDriver =
-      static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver());
-  if (!pDriver)
-    return;
-
-  pDriver->RegisterForm(this);
-}
-
-void IFWL_Form::UnRegisterForm() {
-  const CFWL_App* pApp = GetOwnerApp();
-  if (!pApp)
-    return;
-
-  CFWL_NoteDriver* pDriver =
-      static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver());
-  if (!pDriver)
-    return;
-
-  pDriver->UnRegisterForm(this);
-}
-
-void IFWL_Form::OnProcessMessage(CFWL_Message* pMessage) {
-#ifndef FWL_UseMacSystemBorder
-  if (!pMessage)
-    return;
-
-  switch (pMessage->GetClassID()) {
-    case CFWL_MessageType::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::Move:
-          OnMouseMove(pMsg);
-          break;
-        case FWL_MouseCommand::Leave:
-          OnMouseLeave(pMsg);
-          break;
-        case FWL_MouseCommand::LeftButtonDblClk:
-          OnLButtonDblClk(pMsg);
-          break;
-        default:
-          break;
-      }
-      break;
-    }
-    default:
-      break;
-  }
-#endif  // FWL_UseMacSystemBorder
-}
-
-void IFWL_Form::OnDrawWidget(CFX_Graphics* pGraphics,
-                             const CFX_Matrix* pMatrix) {
-  DrawWidget(pGraphics, pMatrix);
-}
-
-void IFWL_Form::OnLButtonDown(CFWL_MsgMouse* pMsg) {
-  SetGrab(true);
-  m_bLButtonDown = true;
-
-  CFWL_SysBtn* pPressBtn = GetSysBtnAtPoint(pMsg->m_fx, pMsg->m_fy);
-  m_iCaptureBtn = GetSysBtnIndex(pPressBtn);
-
-  if (!pPressBtn)
-    return;
-
-  pPressBtn->SetPressed();
-  Repaint(&pPressBtn->m_rtBtn);
-}
-
-void IFWL_Form::OnLButtonUp(CFWL_MsgMouse* pMsg) {
-  SetGrab(false);
-  m_bLButtonDown = false;
-  CFWL_SysBtn* pPointBtn = GetSysBtnAtPoint(pMsg->m_fx, pMsg->m_fy);
-  CFWL_SysBtn* pPressedBtn = GetSysBtnByIndex(m_iCaptureBtn);
-  if (!pPressedBtn || pPointBtn != pPressedBtn)
-    return;
-  if (pPressedBtn == GetSysBtnByState(FWL_SYSBUTTONSTATE_Pressed))
-    pPressedBtn->SetNormal();
-  if (pPressedBtn == m_pMaxBox) {
-    if (m_bMaximized) {
-      SetWidgetRect(m_rtRestore);
-      Update();
-      Repaint();
-    } else {
-      SetWorkAreaRect();
-      Update();
-    }
-    m_bMaximized = !m_bMaximized;
-  } else if (pPressedBtn != m_pMinBox) {
-    CFWL_EvtClose eClose;
-    eClose.m_pSrcTarget = this;
-    DispatchEvent(&eClose);
-  }
-}
-
-void IFWL_Form::OnMouseMove(CFWL_MsgMouse* pMsg) {
-  if (m_bLButtonDown)
-    return;
-
-  CFX_RectF rtInvalidate;
-  rtInvalidate.Reset();
-  CFWL_SysBtn* pPointBtn = GetSysBtnAtPoint(pMsg->m_fx, pMsg->m_fy);
-  CFWL_SysBtn* pOldHover = GetSysBtnByState(FWL_SYSBUTTONSTATE_Hover);
-
-#if _FX_OS_ == _FX_MACOSX_
-  {
-    if (pOldHover && pPointBtn != pOldHover)
-      pOldHover->SetNormal();
-    if (pPointBtn && pPointBtn != pOldHover)
-      pPointBtn->SetHover();
-    if (m_pCloseBox)
-      rtInvalidate = m_pCloseBox->m_rtBtn;
-    if (m_pMaxBox) {
-      if (rtInvalidate.IsEmpty())
-        rtInvalidate = m_pMaxBox->m_rtBtn;
-      else
-        rtInvalidate.Union(m_pMaxBox->m_rtBtn);
-    }
-    if (m_pMinBox) {
-      if (rtInvalidate.IsEmpty())
-        rtInvalidate = m_pMinBox->m_rtBtn;
-      else
-        rtInvalidate.Union(m_pMinBox->m_rtBtn);
-    }
-    if (!rtInvalidate.IsEmpty() &&
-        rtInvalidate.Contains(pMsg->m_fx, pMsg->m_fy)) {
-      m_bMouseIn = true;
-    }
-  }
-#else
-  {
-    if (pOldHover && pPointBtn != pOldHover) {
-      pOldHover->SetNormal();
-      rtInvalidate = pOldHover->m_rtBtn;
-    }
-    if (pPointBtn && pPointBtn != pOldHover) {
-      pPointBtn->SetHover();
-      if (rtInvalidate.IsEmpty())
-        rtInvalidate = pPointBtn->m_rtBtn;
-      else
-        rtInvalidate.Union(pPointBtn->m_rtBtn);
-    }
-  }
-#endif
-
-  if (!rtInvalidate.IsEmpty())
-    Repaint(&rtInvalidate);
-}
-
-void IFWL_Form::OnMouseLeave(CFWL_MsgMouse* pMsg) {
-  CFWL_SysBtn* pHover = GetSysBtnByState(FWL_SYSBUTTONSTATE_Hover);
-  if (!pHover)
-    return;
-
-  pHover->SetNormal();
-  Repaint(&pHover->m_rtBtn);
-}
-
-void IFWL_Form::OnLButtonDblClk(CFWL_MsgMouse* pMsg) {
-  if ((m_pProperties->m_dwStyleExes & FWL_STYLEEXT_FRM_Resize) &&
-      HitTest(pMsg->m_fx, pMsg->m_fy) == FWL_WidgetHit::Titlebar) {
-    if (m_bMaximized)
-      SetWidgetRect(m_rtRestore);
-    else
-      SetWorkAreaRect();
-
-    Update();
-    m_bMaximized = !m_bMaximized;
-  }
-}