Merge IFWL and CFWL classes.

xfa/fwl/core/ifwl_widget.cpp

Index: xfa/fwl/core/ifwl_widget.cpp
diff --git a/xfa/fwl/core/ifwl_widget.cpp b/xfa/fwl/core/ifwl_widget.cpp
deleted file mode 100644
index 9a37cc89cafeefb488b6beaa022c23b27c9d484d..0000000000000000000000000000000000000000
--- a/xfa/fwl/core/ifwl_widget.cpp
+++ /dev/null
@@ -1,803 +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_widget.h"
-
-#include <algorithm>
-#include <utility>
-
-#include "xfa/fde/tto/fde_textout.h"
-#include "xfa/fwl/core/cfwl_app.h"
-#include "xfa/fwl/core/cfwl_evtkey.h"
-#include "xfa/fwl/core/cfwl_evtkillfocus.h"
-#include "xfa/fwl/core/cfwl_evtmouse.h"
-#include "xfa/fwl/core/cfwl_evtmousewheel.h"
-#include "xfa/fwl/core/cfwl_evtsetfocus.h"
-#include "xfa/fwl/core/cfwl_evtsizechanged.h"
-#include "xfa/fwl/core/cfwl_form.h"
-#include "xfa/fwl/core/cfwl_msgkey.h"
-#include "xfa/fwl/core/cfwl_msgkillfocus.h"
-#include "xfa/fwl/core/cfwl_msgmouse.h"
-#include "xfa/fwl/core/cfwl_msgmousewheel.h"
-#include "xfa/fwl/core/cfwl_msgsetfocus.h"
-#include "xfa/fwl/core/cfwl_notedriver.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_combobox.h"
-#include "xfa/fwl/core/ifwl_themeprovider.h"
-#include "xfa/fxfa/xfa_ffapp.h"
-
-#define FWL_STYLEEXT_MNU_Vert (1L << 0)
-#define FWL_WGT_CalcHeight 2048
-#define FWL_WGT_CalcWidth 2048
-#define FWL_WGT_CalcMultiLineDefWidth 120.0f
-
-IFWL_Widget::IFWL_Widget(const CFWL_App* app,
-                         std::unique_ptr<CFWL_WidgetProperties> properties,
-                         IFWL_Widget* pOuter)
-    : m_pOwnerApp(app),
-      m_pWidgetMgr(app->GetWidgetMgr()),
-      m_pProperties(std::move(properties)),
-      m_pOuter(pOuter),
-      m_iLock(0),
-      m_pLayoutItem(nullptr),
-      m_pAssociate(nullptr),
-      m_nEventKey(0),
-      m_pDelegate(nullptr) {
-  ASSERT(m_pWidgetMgr);
-
-  IFWL_Widget* pParent = m_pProperties->m_pParent;
-  m_pWidgetMgr->InsertWidget(pParent, this);
-  if (IsChild())
-    return;
-
-  IFWL_Widget* pOwner = m_pProperties->m_pOwner;
-  if (pOwner)
-    m_pWidgetMgr->SetOwner(pOwner, this);
-}
-
-IFWL_Widget::~IFWL_Widget() {
-  NotifyDriver();
-  m_pWidgetMgr->RemoveWidget(this);
-}
-
-bool IFWL_Widget::IsInstance(const CFX_WideStringC& wsClass) const {
-  return false;
-}
-
-void IFWL_Widget::GetWidgetRect(CFX_RectF& rect, bool bAutoSize) {
-  if (!bAutoSize) {
-    rect = m_pProperties->m_rtWidget;
-    return;
-  }
-
-  if (HasEdge()) {
-    FX_FLOAT fEdge = GetEdgeWidth();
-    rect.Inflate(fEdge, fEdge);
-  }
-  if (HasBorder()) {
-    FX_FLOAT fBorder = GetBorderSize();
-    rect.Inflate(fBorder, fBorder);
-  }
-}
-
-void IFWL_Widget::SetWidgetRect(const CFX_RectF& rect) {
-  CFX_RectF rtOld = m_pProperties->m_rtWidget;
-  m_pProperties->m_rtWidget = rect;
-  if (IsChild()) {
-    if (FXSYS_fabs(rtOld.width - rect.width) > 0.5f ||
-        FXSYS_fabs(rtOld.height - rect.height) > 0.5f) {
-      CFWL_EvtSizeChanged ev;
-      ev.m_pSrcTarget = this;
-      ev.m_rtOld = rtOld;
-      ev.m_rtNew = rect;
-
-      if (IFWL_WidgetDelegate* pDelegate = GetDelegate())
-        pDelegate->OnProcessEvent(&ev);
-    }
-    return;
-  }
-  m_pWidgetMgr->SetWidgetRect_Native(this, rect);
-}
-
-void IFWL_Widget::GetClientRect(CFX_RectF& rect) {
-  GetEdgeRect(rect);
-  if (HasEdge()) {
-    FX_FLOAT fEdge = GetEdgeWidth();
-    rect.Deflate(fEdge, fEdge);
-  }
-}
-
-void IFWL_Widget::SetParent(IFWL_Widget* pParent) {
-  m_pProperties->m_pParent = pParent;
-  m_pWidgetMgr->SetParent(pParent, this);
-}
-
-uint32_t IFWL_Widget::GetStyles() const {
-  return m_pProperties->m_dwStyles;
-}
-
-void IFWL_Widget::ModifyStyles(uint32_t dwStylesAdded,
-                               uint32_t dwStylesRemoved) {
-  m_pProperties->m_dwStyles =
-      (m_pProperties->m_dwStyles & ~dwStylesRemoved) | dwStylesAdded;
-}
-
-uint32_t IFWL_Widget::GetStylesEx() const {
-  return m_pProperties->m_dwStyleExes;
-}
-uint32_t IFWL_Widget::GetStates() const {
-  return m_pProperties->m_dwStates;
-}
-
-void IFWL_Widget::ModifyStylesEx(uint32_t dwStylesExAdded,
-                                 uint32_t dwStylesExRemoved) {
-  m_pProperties->m_dwStyleExes =
-      (m_pProperties->m_dwStyleExes & ~dwStylesExRemoved) | dwStylesExAdded;
-}
-
-static void NotifyHideChildWidget(CFWL_WidgetMgr* widgetMgr,
-                                  IFWL_Widget* widget,
-                                  CFWL_NoteDriver* noteDriver) {
-  IFWL_Widget* child = widgetMgr->GetFirstChildWidget(widget);
-  while (child) {
-    noteDriver->NotifyTargetHide(child);
-    NotifyHideChildWidget(widgetMgr, child, noteDriver);
-    child = widgetMgr->GetNextSiblingWidget(child);
-  }
-}
-
-void IFWL_Widget::SetStates(uint32_t dwStates, bool bSet) {
-  bSet ? (m_pProperties->m_dwStates |= dwStates)
-       : (m_pProperties->m_dwStates &= ~dwStates);
-  if (!(dwStates & FWL_WGTSTATE_Invisible) || !bSet)
-    return;
-
-  CFWL_NoteDriver* noteDriver =
-      static_cast<CFWL_NoteDriver*>(GetOwnerApp()->GetNoteDriver());
-  CFWL_WidgetMgr* widgetMgr = GetOwnerApp()->GetWidgetMgr();
-  noteDriver->NotifyTargetHide(this);
-  IFWL_Widget* child = widgetMgr->GetFirstChildWidget(this);
-  while (child) {
-    noteDriver->NotifyTargetHide(child);
-    NotifyHideChildWidget(widgetMgr, child, noteDriver);
-    child = widgetMgr->GetNextSiblingWidget(child);
-  }
-  return;
-}
-
-FWL_WidgetHit IFWL_Widget::HitTest(FX_FLOAT fx, FX_FLOAT fy) {
-  CFX_RectF rtClient;
-  GetClientRect(rtClient);
-  if (rtClient.Contains(fx, fy))
-    return FWL_WidgetHit::Client;
-  if (HasEdge()) {
-    CFX_RectF rtEdge;
-    GetEdgeRect(rtEdge);
-    if (rtEdge.Contains(fx, fy))
-      return FWL_WidgetHit::Edge;
-  }
-  if (HasBorder()) {
-    CFX_RectF rtRelative;
-    GetRelativeRect(rtRelative);
-    if (rtRelative.Contains(fx, fy))
-      return FWL_WidgetHit::Border;
-  }
-  return FWL_WidgetHit::Unknown;
-}
-
-void IFWL_Widget::TransformTo(IFWL_Widget* pWidget,
-                              FX_FLOAT& fx,
-                              FX_FLOAT& fy) {
-  if (m_pWidgetMgr->IsFormDisabled()) {
-    CFX_SizeF szOffset;
-    if (IsParent(pWidget)) {
-      szOffset = GetOffsetFromParent(pWidget);
-    } else {
-      szOffset = pWidget->GetOffsetFromParent(this);
-      szOffset.x = -szOffset.x;
-      szOffset.y = -szOffset.y;
-    }
-    fx += szOffset.x;
-    fy += szOffset.y;
-    return;
-  }
-  CFX_RectF r;
-  CFX_Matrix m;
-  IFWL_Widget* parent = GetParent();
-  if (parent) {
-    GetWidgetRect(r);
-    fx += r.left;
-    fy += r.top;
-    GetMatrix(m, true);
-    m.TransformPoint(fx, fy);
-  }
-  IFWL_Widget* form1 = m_pWidgetMgr->GetSystemFormWidget(this);
-  if (!form1)
-    return;
-  if (!pWidget) {
-    form1->GetWidgetRect(r);
-    fx += r.left;
-    fy += r.top;
-    return;
-  }
-  IFWL_Widget* form2 = m_pWidgetMgr->GetSystemFormWidget(pWidget);
-  if (!form2)
-    return;
-  if (form1 != form2) {
-    form1->GetWidgetRect(r);
-    fx += r.left;
-    fy += r.top;
-    form2->GetWidgetRect(r);
-    fx -= r.left;
-    fy -= r.top;
-  }
-  parent = pWidget->GetParent();
-  if (parent) {
-    pWidget->GetMatrix(m, true);
-    CFX_Matrix m1;
-    m1.SetIdentity();
-    m1.SetReverse(m);
-    m1.TransformPoint(fx, fy);
-    pWidget->GetWidgetRect(r);
-    fx -= r.left;
-    fy -= r.top;
-  }
-}
-
-void IFWL_Widget::GetMatrix(CFX_Matrix& matrix, bool bGlobal) {
-  if (!m_pProperties)
-    return;
-  if (!bGlobal) {
-    matrix.SetIdentity();
-    return;
-  }
-
-  IFWL_Widget* parent = GetParent();
-  CFX_ArrayTemplate<IFWL_Widget*> parents;
-  while (parent) {
-    parents.Add(parent);
-    parent = parent->GetParent();
-  }
-  matrix.SetIdentity();
-  CFX_Matrix ctmOnParent;
-  CFX_RectF rect;
-  int32_t count = parents.GetSize();
-  for (int32_t i = count - 2; i >= 0; i--) {
-    parent = parents.GetAt(i);
-    parent->GetMatrix(ctmOnParent, false);
-    parent->GetWidgetRect(rect);
-    matrix.Concat(ctmOnParent, true);
-    matrix.Translate(rect.left, rect.top, true);
-  }
-  CFX_Matrix m;
-  m.SetIdentity();
-  matrix.Concat(m, true);
-  parents.RemoveAll();
-}
-
-IFWL_ThemeProvider* IFWL_Widget::GetThemeProvider() const {
-  return m_pProperties->m_pThemeProvider;
-}
-
-void IFWL_Widget::SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) {
-  m_pProperties->m_pThemeProvider = pThemeProvider;
-}
-
-bool IFWL_Widget::IsEnabled() const {
-  return (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled) == 0;
-}
-
-bool IFWL_Widget::IsActive() const {
-  return (m_pProperties->m_dwStates & FWL_WGTSTATE_Deactivated) == 0;
-}
-
-bool IFWL_Widget::HasBorder() const {
-  return !!(m_pProperties->m_dwStyles & FWL_WGTSTYLE_Border);
-}
-
-bool IFWL_Widget::HasEdge() const {
-  return !!(m_pProperties->m_dwStyles & FWL_WGTSTYLE_EdgeMask);
-}
-
-bool IFWL_Widget::IsVisible() const {
-  return (m_pProperties->m_dwStates & FWL_WGTSTATE_Invisible) == 0;
-}
-
-bool IFWL_Widget::IsOverLapper() const {
-  return (m_pProperties->m_dwStyles & FWL_WGTSTYLE_WindowTypeMask) ==
-         FWL_WGTSTYLE_OverLapper;
-}
-
-bool IFWL_Widget::IsPopup() const {
-  return !!(m_pProperties->m_dwStyles & FWL_WGTSTYLE_Popup);
-}
-
-bool IFWL_Widget::IsChild() const {
-  return !!(m_pProperties->m_dwStyles & FWL_WGTSTYLE_Child);
-}
-
-bool IFWL_Widget::IsOffscreen() const {
-  return !!(m_pProperties->m_dwStyles & FWL_WGTSTYLE_Offscreen);
-}
-
-void IFWL_Widget::GetEdgeRect(CFX_RectF& rtEdge) {
-  rtEdge = m_pProperties->m_rtWidget;
-  rtEdge.left = rtEdge.top = 0;
-  if (HasBorder()) {
-    FX_FLOAT fCX = GetBorderSize();
-    FX_FLOAT fCY = GetBorderSize(false);
-    rtEdge.Deflate(fCX, fCY);
-  }
-}
-
-FX_FLOAT IFWL_Widget::GetBorderSize(bool bCX) {
-  FX_FLOAT* pfBorder = static_cast<FX_FLOAT*>(GetThemeCapacity(
-      bCX ? CFWL_WidgetCapacity::CXBorder : CFWL_WidgetCapacity::CYBorder));
-  if (!pfBorder)
-    return 0;
-  return *pfBorder;
-}
-
-FX_FLOAT IFWL_Widget::GetEdgeWidth() {
-  CFWL_WidgetCapacity dwCapacity = CFWL_WidgetCapacity::None;
-  switch (m_pProperties->m_dwStyles & FWL_WGTSTYLE_EdgeMask) {
-    case FWL_WGTSTYLE_EdgeFlat: {
-      dwCapacity = CFWL_WidgetCapacity::EdgeFlat;
-      break;
-    }
-    case FWL_WGTSTYLE_EdgeRaised: {
-      dwCapacity = CFWL_WidgetCapacity::EdgeRaised;
-      break;
-    }
-    case FWL_WGTSTYLE_EdgeSunken: {
-      dwCapacity = CFWL_WidgetCapacity::EdgeSunken;
-      break;
-    }
-  }
-  if (dwCapacity != CFWL_WidgetCapacity::None) {
-    FX_FLOAT* fRet = static_cast<FX_FLOAT*>(GetThemeCapacity(dwCapacity));
-    return fRet ? *fRet : 0;
-  }
-  return 0;
-}
-
-void IFWL_Widget::GetRelativeRect(CFX_RectF& rect) {
-  rect = m_pProperties->m_rtWidget;
-  rect.left = rect.top = 0;
-}
-
-void* IFWL_Widget::GetThemeCapacity(CFWL_WidgetCapacity dwCapacity) {
-  IFWL_ThemeProvider* pTheme = GetAvailableTheme();
-  if (!pTheme)
-    return nullptr;
-
-  CFWL_ThemePart part;
-  part.m_pWidget = this;
-  return pTheme->GetCapacity(&part, dwCapacity);
-}
-
-IFWL_ThemeProvider* IFWL_Widget::GetAvailableTheme() {
-  if (m_pProperties->m_pThemeProvider)
-    return m_pProperties->m_pThemeProvider;
-
-  IFWL_Widget* pUp = this;
-  do {
-    pUp = (pUp->GetStyles() & FWL_WGTSTYLE_Popup)
-              ? m_pWidgetMgr->GetOwnerWidget(pUp)
-              : m_pWidgetMgr->GetParentWidget(pUp);
-    if (pUp) {
-      IFWL_ThemeProvider* pRet = pUp->GetThemeProvider();
-      if (pRet)
-        return pRet;
-    }
-  } while (pUp);
-  return nullptr;
-}
-
-IFWL_Widget* IFWL_Widget::GetRootOuter() {
-  IFWL_Widget* pRet = m_pOuter;
-  if (!pRet)
-    return nullptr;
-
-  while (IFWL_Widget* pOuter = pRet->GetOuter())
-    pRet = pOuter;
-  return pRet;
-}
-
-CFX_SizeF IFWL_Widget::CalcTextSize(const CFX_WideString& wsText,
-                                    IFWL_ThemeProvider* pTheme,
-                                    bool bMultiLine,
-                                    int32_t iLineWidth) {
-  if (!pTheme)
-    return CFX_SizeF();
-
-  CFWL_ThemeText calPart;
-  calPart.m_pWidget = this;
-  calPart.m_wsText = wsText;
-  calPart.m_dwTTOStyles =
-      bMultiLine ? FDE_TTOSTYLE_LineWrap : FDE_TTOSTYLE_SingleLine;
-  calPart.m_iTTOAlign = FDE_TTOALIGNMENT_TopLeft;
-  CFX_RectF rect;
-  FX_FLOAT fWidth = bMultiLine
-                        ? (iLineWidth > 0 ? (FX_FLOAT)iLineWidth
-                                          : FWL_WGT_CalcMultiLineDefWidth)
-                        : FWL_WGT_CalcWidth;
-  rect.Set(0, 0, fWidth, FWL_WGT_CalcHeight);
-  pTheme->CalcTextRect(&calPart, rect);
-  return CFX_SizeF(rect.width, rect.height);
-}
-
-void IFWL_Widget::CalcTextRect(const CFX_WideString& wsText,
-                               IFWL_ThemeProvider* pTheme,
-                               uint32_t dwTTOStyles,
-                               int32_t iTTOAlign,
-                               CFX_RectF& rect) {
-  CFWL_ThemeText calPart;
-  calPart.m_pWidget = this;
-  calPart.m_wsText = wsText;
-  calPart.m_dwTTOStyles = dwTTOStyles;
-  calPart.m_iTTOAlign = iTTOAlign;
-  pTheme->CalcTextRect(&calPart, rect);
-}
-
-void IFWL_Widget::SetFocus(bool bFocus) {
-  if (m_pWidgetMgr->IsFormDisabled())
-    return;
-
-  const CFWL_App* pApp = GetOwnerApp();
-  if (!pApp)
-    return;
-
-  CFWL_NoteDriver* pDriver =
-      static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver());
-  if (!pDriver)
-    return;
-
-  IFWL_Widget* curFocus = pDriver->GetFocus();
-  if (bFocus && curFocus != this)
-    pDriver->SetFocus(this);
-  else if (!bFocus && curFocus == this)
-    pDriver->SetFocus(nullptr);
-}
-
-void IFWL_Widget::SetGrab(bool bSet) {
-  const CFWL_App* pApp = GetOwnerApp();
-  if (!pApp)
-    return;
-
-  CFWL_NoteDriver* pDriver =
-      static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver());
-  pDriver->SetGrab(this, bSet);
-}
-
-void IFWL_Widget::GetPopupPos(FX_FLOAT fMinHeight,
-                              FX_FLOAT fMaxHeight,
-                              const CFX_RectF& rtAnchor,
-                              CFX_RectF& rtPopup) {
-  if (GetClassID() == FWL_Type::ComboBox) {
-    if (m_pWidgetMgr->IsFormDisabled()) {
-      m_pWidgetMgr->GetAdapterPopupPos(this, fMinHeight, fMaxHeight, rtAnchor,
-                                       rtPopup);
-      return;
-    }
-    GetPopupPosComboBox(fMinHeight, fMaxHeight, rtAnchor, rtPopup);
-    return;
-  }
-  if (GetClassID() == FWL_Type::DateTimePicker &&
-      m_pWidgetMgr->IsFormDisabled()) {
-    m_pWidgetMgr->GetAdapterPopupPos(this, fMinHeight, fMaxHeight, rtAnchor,
-                                     rtPopup);
-    return;
-  }
-  GetPopupPosGeneral(fMinHeight, fMaxHeight, rtAnchor, rtPopup);
-}
-
-bool IFWL_Widget::GetPopupPosMenu(FX_FLOAT fMinHeight,
-                                  FX_FLOAT fMaxHeight,
-                                  const CFX_RectF& rtAnchor,
-                                  CFX_RectF& rtPopup) {
-  FX_FLOAT fx = 0;
-  FX_FLOAT fy = 0;
-
-  if (GetStylesEx() & FWL_STYLEEXT_MNU_Vert) {
-    bool bLeft = m_pProperties->m_rtWidget.left < 0;
-    FX_FLOAT fRight = rtAnchor.right() + rtPopup.width;
-    TransformTo(nullptr, fx, fy);
-    if (fRight + fx > 0.0f || bLeft) {
-      rtPopup.Set(rtAnchor.left - rtPopup.width, rtAnchor.top, rtPopup.width,
-                  rtPopup.height);
-    } else {
-      rtPopup.Set(rtAnchor.right(), rtAnchor.top, rtPopup.width,
-                  rtPopup.height);
-    }
-  } else {
-    FX_FLOAT fBottom = rtAnchor.bottom() + rtPopup.height;
-    TransformTo(nullptr, fx, fy);
-    if (fBottom + fy > 0.0f) {
-      rtPopup.Set(rtAnchor.left, rtAnchor.top - rtPopup.height, rtPopup.width,
-                  rtPopup.height);
-    } else {
-      rtPopup.Set(rtAnchor.left, rtAnchor.bottom(), rtPopup.width,
-                  rtPopup.height);
-    }
-  }
-  rtPopup.Offset(fx, fy);
-  return true;
-}
-
-bool IFWL_Widget::GetPopupPosComboBox(FX_FLOAT fMinHeight,
-                                      FX_FLOAT fMaxHeight,
-                                      const CFX_RectF& rtAnchor,
-                                      CFX_RectF& rtPopup) {
-  FX_FLOAT fx = 0;
-  FX_FLOAT fy = 0;
-
-  FX_FLOAT fPopHeight = rtPopup.height;
-  if (rtPopup.height > fMaxHeight)
-    fPopHeight = fMaxHeight;
-  else if (rtPopup.height < fMinHeight)
-    fPopHeight = fMinHeight;
-
-  FX_FLOAT fWidth = std::max(rtAnchor.width, rtPopup.width);
-  FX_FLOAT fBottom = rtAnchor.bottom() + fPopHeight;
-  TransformTo(nullptr, fx, fy);
-  if (fBottom + fy > 0.0f)
-    rtPopup.Set(rtAnchor.left, rtAnchor.top - fPopHeight, fWidth, fPopHeight);
-  else
-    rtPopup.Set(rtAnchor.left, rtAnchor.bottom(), fWidth, fPopHeight);
-
-  rtPopup.Offset(fx, fy);
-  return true;
-}
-
-bool IFWL_Widget::GetPopupPosGeneral(FX_FLOAT fMinHeight,
-                                     FX_FLOAT fMaxHeight,
-                                     const CFX_RectF& rtAnchor,
-                                     CFX_RectF& rtPopup) {
-  FX_FLOAT fx = 0;
-  FX_FLOAT fy = 0;
-
-  TransformTo(nullptr, fx, fy);
-  if (rtAnchor.bottom() + fy > 0.0f) {
-    rtPopup.Set(rtAnchor.left, rtAnchor.top - rtPopup.height, rtPopup.width,
-                rtPopup.height);
-  } else {
-    rtPopup.Set(rtAnchor.left, rtAnchor.bottom(), rtPopup.width,
-                rtPopup.height);
-  }
-  rtPopup.Offset(fx, fy);
-  return true;
-}
-
-void IFWL_Widget::RegisterEventTarget(IFWL_Widget* pEventSource) {
-  const CFWL_App* pApp = GetOwnerApp();
-  if (!pApp)
-    return;
-
-  CFWL_NoteDriver* pNoteDriver = pApp->GetNoteDriver();
-  if (!pNoteDriver)
-    return;
-
-  pNoteDriver->RegisterEventTarget(this, pEventSource);
-}
-
-void IFWL_Widget::UnregisterEventTarget() {
-  const CFWL_App* pApp = GetOwnerApp();
-  if (!pApp)
-    return;
-
-  CFWL_NoteDriver* pNoteDriver = pApp->GetNoteDriver();
-  if (!pNoteDriver)
-    return;
-
-  pNoteDriver->UnregisterEventTarget(this);
-}
-
-void IFWL_Widget::DispatchKeyEvent(CFWL_MsgKey* pNote) {
-  if (!pNote)
-    return;
-
-  auto pEvent = pdfium::MakeUnique<CFWL_EvtKey>();
-  pEvent->m_pSrcTarget = this;
-  pEvent->m_dwCmd = pNote->m_dwCmd;
-  pEvent->m_dwKeyCode = pNote->m_dwKeyCode;
-  pEvent->m_dwFlags = pNote->m_dwFlags;
-  DispatchEvent(pEvent.get());
-}
-
-void IFWL_Widget::DispatchEvent(CFWL_Event* pEvent) {
-  if (m_pOuter) {
-    m_pOuter->GetDelegate()->OnProcessEvent(pEvent);
-    return;
-  }
-  const CFWL_App* pApp = GetOwnerApp();
-  if (!pApp)
-    return;
-
-  CFWL_NoteDriver* pNoteDriver = pApp->GetNoteDriver();
-  if (!pNoteDriver)
-    return;
-  pNoteDriver->SendEvent(pEvent);
-}
-
-void IFWL_Widget::Repaint(const CFX_RectF* pRect) {
-  if (pRect) {
-    m_pWidgetMgr->RepaintWidget(this, pRect);
-    return;
-  }
-  CFX_RectF rect;
-  rect = m_pProperties->m_rtWidget;
-  rect.left = rect.top = 0;
-  m_pWidgetMgr->RepaintWidget(this, &rect);
-}
-
-void IFWL_Widget::DrawBackground(CFX_Graphics* pGraphics,
-                                 CFWL_Part iPartBk,
-                                 IFWL_ThemeProvider* pTheme,
-                                 const CFX_Matrix* pMatrix) {
-  CFX_RectF rtRelative;
-  GetRelativeRect(rtRelative);
-  CFWL_ThemeBackground param;
-  param.m_pWidget = this;
-  param.m_iPart = iPartBk;
-  param.m_pGraphics = pGraphics;
-  if (pMatrix)
-    param.m_matrix.Concat(*pMatrix, true);
-  param.m_rtPart = rtRelative;
-  pTheme->DrawBackground(&param);
-}
-
-void IFWL_Widget::DrawBorder(CFX_Graphics* pGraphics,
-                             CFWL_Part iPartBorder,
-                             IFWL_ThemeProvider* pTheme,
-                             const CFX_Matrix* pMatrix) {
-  CFX_RectF rtRelative;
-  GetRelativeRect(rtRelative);
-  CFWL_ThemeBackground param;
-  param.m_pWidget = this;
-  param.m_iPart = iPartBorder;
-  param.m_pGraphics = pGraphics;
-  if (pMatrix)
-    param.m_matrix.Concat(*pMatrix, true);
-  param.m_rtPart = rtRelative;
-  pTheme->DrawBackground(&param);
-}
-
-void IFWL_Widget::DrawEdge(CFX_Graphics* pGraphics,
-                           CFWL_Part iPartEdge,
-                           IFWL_ThemeProvider* pTheme,
-                           const CFX_Matrix* pMatrix) {
-  CFX_RectF rtEdge;
-  GetEdgeRect(rtEdge);
-  CFWL_ThemeBackground param;
-  param.m_pWidget = this;
-  param.m_iPart = iPartEdge;
-  param.m_pGraphics = pGraphics;
-  if (pMatrix)
-    param.m_matrix.Concat(*pMatrix, true);
-  param.m_rtPart = rtEdge;
-  pTheme->DrawBackground(&param);
-}
-
-void IFWL_Widget::NotifyDriver() {
-  const CFWL_App* pApp = GetOwnerApp();
-  if (!pApp)
-    return;
-
-  CFWL_NoteDriver* pDriver =
-      static_cast<CFWL_NoteDriver*>(pApp->GetNoteDriver());
-  if (!pDriver)
-    return;
-
-  pDriver->NotifyTargetDestroy(this);
-}
-
-CFX_SizeF IFWL_Widget::GetOffsetFromParent(IFWL_Widget* pParent) {
-  if (pParent == this)
-    return CFX_SizeF();
-
-  CFWL_WidgetMgr* pWidgetMgr = GetOwnerApp()->GetWidgetMgr();
-  if (!pWidgetMgr)
-    return CFX_SizeF();
-
-  CFX_SizeF szRet(m_pProperties->m_rtWidget.left,
-                  m_pProperties->m_rtWidget.top);
-
-  IFWL_Widget* pDstWidget = GetParent();
-  while (pDstWidget && pDstWidget != pParent) {
-    CFX_RectF rtDst;
-    pDstWidget->GetWidgetRect(rtDst);
-    szRet += CFX_SizeF(rtDst.left, rtDst.top);
-    pDstWidget = pWidgetMgr->GetParentWidget(pDstWidget);
-  }
-  return szRet;
-}
-
-bool IFWL_Widget::IsParent(IFWL_Widget* pParent) {
-  IFWL_Widget* pUpWidget = GetParent();
-  while (pUpWidget) {
-    if (pUpWidget == pParent)
-      return true;
-    pUpWidget = pUpWidget->GetParent();
-  }
-  return false;
-}
-
-void IFWL_Widget::OnProcessMessage(CFWL_Message* pMessage) {
-  if (!pMessage->m_pDstTarget)
-    return;
-
-  IFWL_Widget* pWidget = pMessage->m_pDstTarget;
-  CFWL_MessageType dwMsgCode = pMessage->GetClassID();
-  switch (dwMsgCode) {
-    case CFWL_MessageType::Mouse: {
-      CFWL_MsgMouse* pMsgMouse = static_cast<CFWL_MsgMouse*>(pMessage);
-      CFWL_EvtMouse evt;
-      evt.m_pSrcTarget = pWidget;
-      evt.m_pDstTarget = pWidget;
-      evt.m_dwCmd = pMsgMouse->m_dwCmd;
-      evt.m_dwFlags = pMsgMouse->m_dwFlags;
-      evt.m_fx = pMsgMouse->m_fx;
-      evt.m_fy = pMsgMouse->m_fy;
-      pWidget->DispatchEvent(&evt);
-      break;
-    }
-    case CFWL_MessageType::MouseWheel: {
-      CFWL_MsgMouseWheel* pMsgMouseWheel =
-          static_cast<CFWL_MsgMouseWheel*>(pMessage);
-      CFWL_EvtMouseWheel evt;
-      evt.m_pSrcTarget = pWidget;
-      evt.m_pDstTarget = pWidget;
-      evt.m_dwFlags = pMsgMouseWheel->m_dwFlags;
-      evt.m_fDeltaX = pMsgMouseWheel->m_fDeltaX;
-      evt.m_fDeltaY = pMsgMouseWheel->m_fDeltaY;
-      evt.m_fx = pMsgMouseWheel->m_fx;
-      evt.m_fy = pMsgMouseWheel->m_fy;
-      pWidget->DispatchEvent(&evt);
-      break;
-    }
-    case CFWL_MessageType::Key: {
-      CFWL_MsgKey* pMsgKey = static_cast<CFWL_MsgKey*>(pMessage);
-      CFWL_EvtKey evt;
-      evt.m_pSrcTarget = pWidget;
-      evt.m_pDstTarget = pWidget;
-      evt.m_dwKeyCode = pMsgKey->m_dwKeyCode;
-      evt.m_dwFlags = pMsgKey->m_dwFlags;
-      evt.m_dwCmd = pMsgKey->m_dwCmd;
-      pWidget->DispatchEvent(&evt);
-      break;
-    }
-    case CFWL_MessageType::SetFocus: {
-      CFWL_MsgSetFocus* pMsgSetFocus = static_cast<CFWL_MsgSetFocus*>(pMessage);
-      CFWL_EvtSetFocus evt;
-      evt.m_pSrcTarget = pMsgSetFocus->m_pDstTarget;
-      evt.m_pDstTarget = pMsgSetFocus->m_pDstTarget;
-      evt.m_pSetFocus = pWidget;
-      pWidget->DispatchEvent(&evt);
-      break;
-    }
-    case CFWL_MessageType::KillFocus: {
-      CFWL_MsgKillFocus* pMsgKillFocus =
-          static_cast<CFWL_MsgKillFocus*>(pMessage);
-      CFWL_EvtKillFocus evt;
-      evt.m_pSrcTarget = pMsgKillFocus->m_pDstTarget;
-      evt.m_pDstTarget = pMsgKillFocus->m_pDstTarget;
-      evt.m_pKillFocus = pWidget;
-      pWidget->DispatchEvent(&evt);
-      break;
-    }
-    default:
-      break;
-  }
-}
-
-void IFWL_Widget::OnProcessEvent(CFWL_Event* pEvent) {}
-
-void IFWL_Widget::OnDrawWidget(CFX_Graphics* pGraphics,
-                               const CFX_Matrix* pMatrix) {}