clang-format all pdfium code.

fpdfsdk/src/formfiller/FFL_ComboBox.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 "../../include/formfiller/FormFiller.h"
 #include "../../include/formfiller/FFL_FormFiller.h"
 #include "../../include/formfiller/FFL_IFormFiller.h"
 #include "../../include/formfiller/FFL_CBA_Fontmap.h"
 #include "../../include/formfiller/FFL_ComboBox.h"
 
-
-/* ------------------------------- CFFL_ComboBox ------------------------------- */
-
-CFFL_ComboBox::CFFL_ComboBox(CPDFDoc_Environment* pApp, CPDFSDK_Annot* pAnnot) :
-    CFFL_FormFiller(pApp, pAnnot), m_pFontMap( NULL )
-{
-        m_State.nIndex = 0;
-        m_State.nStart = 0;
-        m_State.nEnd   = 0;
-}
-
-CFFL_ComboBox::~CFFL_ComboBox()
-{
-    delete m_pFontMap;
-}
-
-PWL_CREATEPARAM CFFL_ComboBox::GetCreateParam()
-{
-    PWL_CREATEPARAM cp = CFFL_FormFiller::GetCreateParam();
-
-    ASSERT(m_pWidget != NULL);
-
-    int nFlags = m_pWidget->GetFieldFlags();
-
-    if (nFlags & FIELDFLAG_EDIT)
-    {
-        cp.dwFlags |= PCBS_ALLOWCUSTOMTEXT;
-    }
-
-    if (!m_pFontMap)
-    {
-        m_pFontMap = new CBA_FontMap(m_pWidget, GetSystemHandler());
-        m_pFontMap->Initial();
-    }
-
-    cp.pFontMap = m_pFontMap;
-    cp.pFocusHandler = this;
-
-    return cp;
-}
-
-CPWL_Wnd* CFFL_ComboBox::NewPDFWindow(const PWL_CREATEPARAM& cp, CPDFSDK_PageView* pPageView)
-{
-    CPWL_ComboBox * pWnd = new CPWL_ComboBox();
-    pWnd->AttachFFLData(this);
-    pWnd->Create(cp);
-
-    CFFL_IFormFiller* pFormFiller = m_pApp->GetIFormFiller();
-    pWnd->SetFillerNotify(pFormFiller);
-
-    int32_t nCurSel = m_pWidget->GetSelectedIndex(0);
-    CFX_WideString swText;
-    if (nCurSel < 0)
-        swText = m_pWidget->GetValue();
-    else
-        swText = m_pWidget->GetOptionLabel(nCurSel);
-
-    for (int32_t i=0,sz=m_pWidget->CountOptions(); i<sz; i++)
-    {
-        pWnd->AddString(m_pWidget->GetOptionLabel(i).c_str());
-    }
-
-    pWnd->SetSelect(nCurSel);
-    pWnd->SetText(swText.c_str());
-    return pWnd;
-}
-
-
-FX_BOOL CFFL_ComboBox::OnChar(CPDFSDK_Annot* pAnnot, FX_UINT nChar, FX_UINT nFlags)
-{
-    return CFFL_FormFiller::OnChar(pAnnot, nChar, nFlags);
-}
-
-FX_BOOL CFFL_ComboBox::IsDataChanged(CPDFSDK_PageView* pPageView)
-{
-    CPWL_ComboBox* pWnd = (CPWL_ComboBox*)GetPDFWindow(pPageView, FALSE);
-    if (!pWnd)
-        return FALSE;
-
+/* ------------------------------- CFFL_ComboBox -------------------------------
+ */
+
+CFFL_ComboBox::CFFL_ComboBox(CPDFDoc_Environment* pApp, CPDFSDK_Annot* pAnnot)
+    : CFFL_FormFiller(pApp, pAnnot), m_pFontMap(NULL) {
+  m_State.nIndex = 0;
+  m_State.nStart = 0;
+  m_State.nEnd = 0;
+}
+
+CFFL_ComboBox::~CFFL_ComboBox() {
+  delete m_pFontMap;
+}
+
+PWL_CREATEPARAM CFFL_ComboBox::GetCreateParam() {
+  PWL_CREATEPARAM cp = CFFL_FormFiller::GetCreateParam();
+
+  ASSERT(m_pWidget != NULL);
+
+  int nFlags = m_pWidget->GetFieldFlags();
+
+  if (nFlags & FIELDFLAG_EDIT) {
+    cp.dwFlags |= PCBS_ALLOWCUSTOMTEXT;
+  }
+
+  if (!m_pFontMap) {
+    m_pFontMap = new CBA_FontMap(m_pWidget, GetSystemHandler());
+    m_pFontMap->Initial();
+  }
+
+  cp.pFontMap = m_pFontMap;
+  cp.pFocusHandler = this;
+
+  return cp;
+}
+
+CPWL_Wnd* CFFL_ComboBox::NewPDFWindow(const PWL_CREATEPARAM& cp,
+                                      CPDFSDK_PageView* pPageView) {
+  CPWL_ComboBox* pWnd = new CPWL_ComboBox();
+  pWnd->AttachFFLData(this);
+  pWnd->Create(cp);
+
+  CFFL_IFormFiller* pFormFiller = m_pApp->GetIFormFiller();
+  pWnd->SetFillerNotify(pFormFiller);
+
+  int32_t nCurSel = m_pWidget->GetSelectedIndex(0);
+  CFX_WideString swText;
+  if (nCurSel < 0)
+    swText = m_pWidget->GetValue();
+  else
+    swText = m_pWidget->GetOptionLabel(nCurSel);
+
+  for (int32_t i = 0, sz = m_pWidget->CountOptions(); i < sz; i++) {
+    pWnd->AddString(m_pWidget->GetOptionLabel(i).c_str());
+  }
+
+  pWnd->SetSelect(nCurSel);
+  pWnd->SetText(swText.c_str());
+  return pWnd;
+}
+
+FX_BOOL CFFL_ComboBox::OnChar(CPDFSDK_Annot* pAnnot,
+                              FX_UINT nChar,
+                              FX_UINT nFlags) {
+  return CFFL_FormFiller::OnChar(pAnnot, nChar, nFlags);
+}
+
+FX_BOOL CFFL_ComboBox::IsDataChanged(CPDFSDK_PageView* pPageView) {
+  CPWL_ComboBox* pWnd = (CPWL_ComboBox*)GetPDFWindow(pPageView, FALSE);
+  if (!pWnd)
+    return FALSE;
+
+  int32_t nCurSel = pWnd->GetSelect();
+  if (!(m_pWidget->GetFieldFlags() & FIELDFLAG_EDIT))
+    return nCurSel != m_pWidget->GetSelectedIndex(0);
+
+  if (nCurSel >= 0)
+    return nCurSel != m_pWidget->GetSelectedIndex(0);
+
+  return pWnd->GetText() != m_pWidget->GetValue();
+}
+
+void CFFL_ComboBox::SaveData(CPDFSDK_PageView* pPageView) {
+  ASSERT(m_pWidget != NULL);
+
+  if (CPWL_ComboBox* pWnd = (CPWL_ComboBox*)GetPDFWindow(pPageView, FALSE)) {
+    CFX_WideString swText = pWnd->GetText();
     int32_t nCurSel = pWnd->GetSelect();
-    if (!(m_pWidget->GetFieldFlags() & FIELDFLAG_EDIT))
-        return nCurSel != m_pWidget->GetSelectedIndex(0);
-
-    if (nCurSel >= 0)
-        return nCurSel != m_pWidget->GetSelectedIndex(0);
-
-    return pWnd->GetText() != m_pWidget->GetValue();
-}
-
-void CFFL_ComboBox::SaveData(CPDFSDK_PageView* pPageView)
-{
-    ASSERT(m_pWidget != NULL);
-
-    if (CPWL_ComboBox* pWnd = (CPWL_ComboBox*)GetPDFWindow(pPageView, FALSE))
-    {
-        CFX_WideString swText = pWnd->GetText();
-        int32_t nCurSel = pWnd->GetSelect();
-
-        //mantis:0004157
-        FX_BOOL bSetValue = TRUE;
-
-        if (m_pWidget->GetFieldFlags() & FIELDFLAG_EDIT)
-        {
-            if (nCurSel >= 0)
-            {
-                if (swText != m_pWidget->GetOptionLabel(nCurSel))
-                    bSetValue = TRUE;
-                else
-                    bSetValue = FALSE;
-            }
-            else
-                bSetValue = TRUE;
+
+    // mantis:0004157
+    FX_BOOL bSetValue = TRUE;
+
+    if (m_pWidget->GetFieldFlags() & FIELDFLAG_EDIT) {
+      if (nCurSel >= 0) {
+        if (swText != m_pWidget->GetOptionLabel(nCurSel))
+          bSetValue = TRUE;
+        else
+          bSetValue = FALSE;
+      } else
+        bSetValue = TRUE;
+    } else
+      bSetValue = FALSE;
+
+    CFX_WideString sOldValue;
+
+    if (bSetValue) {
+      sOldValue = m_pWidget->GetValue();
+      m_pWidget->SetValue(swText, FALSE);
+    } else {
+      m_pWidget->GetSelectedIndex(0);
+      m_pWidget->SetOptionSelection(nCurSel, TRUE, FALSE);
+    }
+
+    m_pWidget->ResetFieldAppearance(TRUE);
+    m_pWidget->UpdateField();
+    SetChangeMark();
+
+    m_pWidget->GetPDFPage();
+  }
+}
+
+void CFFL_ComboBox::GetActionData(CPDFSDK_PageView* pPageView,
+                                  CPDF_AAction::AActionType type,
+                                  PDFSDK_FieldAction& fa) {
+  switch (type) {
+    case CPDF_AAction::KeyStroke:
+      if (CPWL_ComboBox* pComboBox =
+              (CPWL_ComboBox*)GetPDFWindow(pPageView, FALSE)) {
+        if (CPWL_Edit* pEdit = (CPWL_Edit*)*pComboBox) {
+          fa.bFieldFull = pEdit->IsTextFull();
+          int nSelStart = 0;
+          int nSelEnd = 0;
+          pEdit->GetSel(nSelStart, nSelEnd);
+          fa.nSelEnd = nSelEnd;
+          fa.nSelStart = nSelStart;
+          fa.sValue = pEdit->GetText();
+          fa.sChangeEx = GetSelectExportText();
+
+          if (fa.bFieldFull) {
+            fa.sChange = L"";
+            fa.sChangeEx = L"";
+          }
         }
-        else
-            bSetValue = FALSE;
-
-        CFX_WideString sOldValue;
-
-
-        if (bSetValue)
-        {
-            sOldValue = m_pWidget->GetValue();
-            m_pWidget->SetValue(swText, FALSE);
+      }
+      break;
+    case CPDF_AAction::Validate:
+      if (CPWL_ComboBox* pComboBox =
+              (CPWL_ComboBox*)GetPDFWindow(pPageView, FALSE)) {
+        if (CPWL_Edit* pEdit = (CPWL_Edit*)*pComboBox) {
+          fa.sValue = pEdit->GetText();
         }
-        else
-        {
-            m_pWidget->GetSelectedIndex(0);
-            m_pWidget->SetOptionSelection(nCurSel, TRUE, FALSE);
-        }
-
-        m_pWidget->ResetFieldAppearance(TRUE);
-        m_pWidget->UpdateField();
-        SetChangeMark();
-
-        m_pWidget->GetPDFPage();
-
-
-    }
-}
-
- void CFFL_ComboBox::GetActionData( CPDFSDK_PageView* pPageView, CPDF_AAction::AActionType type, PDFSDK_FieldAction& fa)
-{
-    switch (type)
-    {
-    case CPDF_AAction::KeyStroke:
-        if (CPWL_ComboBox* pComboBox = (CPWL_ComboBox*)GetPDFWindow(pPageView, FALSE))
-        {
-            if (CPWL_Edit* pEdit = (CPWL_Edit*)*pComboBox)
-            {
-                fa.bFieldFull = pEdit->IsTextFull();
-                int nSelStart = 0;
-                int nSelEnd = 0;
-                pEdit->GetSel(nSelStart, nSelEnd);
-                fa.nSelEnd = nSelEnd;
-                fa.nSelStart = nSelStart;
-                fa.sValue = pEdit->GetText();
-                fa.sChangeEx = GetSelectExportText();
-
-                if (fa.bFieldFull)
-                {
-                    fa.sChange = L"";
-                    fa.sChangeEx = L"";
-                }
-            }
-        }
-        break;
-    case CPDF_AAction::Validate:
-        if (CPWL_ComboBox* pComboBox = (CPWL_ComboBox*)GetPDFWindow(pPageView, FALSE))
-        {
-            if (CPWL_Edit* pEdit = (CPWL_Edit*)*pComboBox)
-            {
-                fa.sValue = pEdit->GetText();
-            }
-        }
-        break;
+      }
+      break;
     case CPDF_AAction::LoseFocus:
     case CPDF_AAction::GetFocus:
-        ASSERT(m_pWidget != NULL);
-        fa.sValue = m_pWidget->GetValue();
-        break;
+      ASSERT(m_pWidget != NULL);
+      fa.sValue = m_pWidget->GetValue();
+      break;
     default:
-        break;
-    }
-}
-
-
-
-void CFFL_ComboBox::SetActionData(CPDFSDK_PageView* pPageView, CPDF_AAction::AActionType type,
-                                    const PDFSDK_FieldAction& fa)
-{
-    switch (type)
-    {
+      break;
+  }
+}
+
+void CFFL_ComboBox::SetActionData(CPDFSDK_PageView* pPageView,
+                                  CPDF_AAction::AActionType type,
+                                  const PDFSDK_FieldAction& fa) {
+  switch (type) {
     case CPDF_AAction::KeyStroke:
-        if (CPWL_ComboBox* pComboBox = (CPWL_ComboBox*)GetPDFWindow(pPageView, FALSE))
-        {
-            if (CPWL_Edit* pEdit = (CPWL_Edit*)*pComboBox)
-            {
-                pEdit->SetSel(fa.nSelStart, fa.nSelEnd);
-                pEdit->ReplaceSel(fa.sChange.c_str());
-            }
+      if (CPWL_ComboBox* pComboBox =
+              (CPWL_ComboBox*)GetPDFWindow(pPageView, FALSE)) {
+        if (CPWL_Edit* pEdit = (CPWL_Edit*)*pComboBox) {
+          pEdit->SetSel(fa.nSelStart, fa.nSelEnd);
+          pEdit->ReplaceSel(fa.sChange.c_str());
         }
-        break;
+      }
+      break;
     default:
-        break;
-    }
-}
-
-FX_BOOL CFFL_ComboBox::IsActionDataChanged(CPDF_AAction::AActionType type, const PDFSDK_FieldAction& faOld,
-                                    const PDFSDK_FieldAction& faNew)
-{
-    switch (type)
-    {
+      break;
+  }
+}
+
+FX_BOOL CFFL_ComboBox::IsActionDataChanged(CPDF_AAction::AActionType type,
+                                           const PDFSDK_FieldAction& faOld,
+                                           const PDFSDK_FieldAction& faNew) {
+  switch (type) {
     case CPDF_AAction::KeyStroke:
-        return (!faOld.bFieldFull && faOld.nSelEnd != faNew.nSelEnd) || faOld.nSelStart != faNew.nSelStart ||
-            faOld.sChange != faNew.sChange;
+      return (!faOld.bFieldFull && faOld.nSelEnd != faNew.nSelEnd) ||
+             faOld.nSelStart != faNew.nSelStart ||
+             faOld.sChange != faNew.sChange;
     default:
-        break;
-    }
-
-    return FALSE;
-}
-
-void CFFL_ComboBox::SaveState(CPDFSDK_PageView* pPageView)
-{
-    ASSERT(pPageView != NULL);
-
-    if (CPWL_ComboBox* pComboBox = (CPWL_ComboBox*)GetPDFWindow(pPageView, FALSE))
-    {
-        m_State.nIndex = pComboBox->GetSelect();
-
-        if (CPWL_Edit* pEdit = (CPWL_Edit*)*pComboBox)
-        {
-            pEdit->GetSel(m_State.nStart, m_State.nEnd);
-            m_State.sValue = pEdit->GetText();
-        }
-    }
-}
-
-void CFFL_ComboBox::RestoreState(CPDFSDK_PageView* pPageView)
-{
-    ASSERT(pPageView != NULL);
-
-    if (CPWL_ComboBox* pComboBox = (CPWL_ComboBox*)GetPDFWindow(pPageView, TRUE))
-    {
-        if (m_State.nIndex >= 0)
-            pComboBox->SetSelect(m_State.nIndex);
-        else
-        {
-            if (CPWL_Edit* pEdit = (CPWL_Edit*)*pComboBox)
-            {
-                pEdit->SetText(m_State.sValue.c_str());
-                pEdit->SetSel(m_State.nStart, m_State.nEnd);
-            }
-        }
-    }
-}
-
-CPWL_Wnd* CFFL_ComboBox::ResetPDFWindow(CPDFSDK_PageView* pPageView, FX_BOOL bRestoreValue)
-{
-    if (bRestoreValue)
-        SaveState(pPageView);
-
-    DestroyPDFWindow(pPageView);
-
-    CPWL_Wnd* pRet = NULL;
-
-    if (bRestoreValue)
-    {
-        RestoreState(pPageView);
-        pRet = GetPDFWindow(pPageView, FALSE);
-    }
-    else
-        pRet = GetPDFWindow(pPageView, TRUE);
-
-    m_pWidget->UpdateField();
-
-    return pRet;
-}
-
-void CFFL_ComboBox::OnKeyStroke(FX_BOOL bKeyDown, FX_UINT nFlag)
-{
-    ASSERT(m_pWidget != NULL);
-
-    int nFlags = m_pWidget->GetFieldFlags();
-
-    if (nFlags & FIELDFLAG_COMMITONSELCHANGE)
-    {
-        if (m_bValid)
-        {
-            CPDFSDK_PageView* pPageView = GetCurPageView();
-            ASSERT(pPageView != NULL);
-
-            if (CommitData(pPageView, nFlag))
-            {
-                DestroyPDFWindow(pPageView);
-                m_bValid = FALSE;
-            }
-        }
-    }
-}
-
-void CFFL_ComboBox::OnSetFocus(CPWL_Wnd* pWnd)
-{
-    ASSERT(m_pApp != NULL);
-
-    ASSERT(pWnd != NULL);
-
-    if (pWnd->GetClassName() == PWL_CLASSNAME_EDIT)
-    {
-        CPWL_Edit* pEdit = (CPWL_Edit*)pWnd;
-        pEdit->SetCharSet(134);
-        pEdit->SetCodePage(936);
-
-        pEdit->SetReadyToInput();
-        CFX_WideString wsText = pEdit->GetText();
-        int nCharacters = wsText.GetLength();
-        CFX_ByteString bsUTFText = wsText.UTF16LE_Encode();
-        unsigned short* pBuffer = (unsigned short*)bsUTFText.c_str();
-        m_pApp->FFI_OnSetFieldInputFocus(m_pWidget->GetFormField(), pBuffer, nCharacters, TRUE);
-
-        pEdit->SetEditNotify(this);
-    }
-}
-
-void CFFL_ComboBox::OnKillFocus(CPWL_Wnd* pWnd)
-{
-    ASSERT(m_pApp != NULL);
-}
-
-FX_BOOL CFFL_ComboBox::CanCopy(CPDFSDK_Document* pDocument)
-{
-    ASSERT(pDocument != NULL);
-
-    return FALSE;
-}
-
-FX_BOOL CFFL_ComboBox::CanCut(CPDFSDK_Document* pDocument)
-{
-    ASSERT(pDocument != NULL);
-
-    return FALSE;
-}
-
-FX_BOOL CFFL_ComboBox::CanPaste(CPDFSDK_Document* pDocument)
-{
-    ASSERT(pDocument != NULL);
-
-    return FALSE;
-}
-
-void CFFL_ComboBox::OnAddUndo(CPWL_Edit* pEdit)
-{
-    ASSERT(pEdit != NULL);
-}
-
-CFX_WideString CFFL_ComboBox::GetSelectExportText()
-{
-    CFX_WideString swRet;
-
-    int nExport = -1;
-    CPDFSDK_PageView *pPageView = GetCurPageView();
-    if (CPWL_ComboBox * pComboBox = (CPWL_ComboBox*)GetPDFWindow(pPageView, FALSE))
-    {
-        nExport = pComboBox->GetSelect();
-    }
-
-    if (nExport >= 0)
-    {
-        if (CPDF_FormField * pFormField = m_pWidget->GetFormField())
-        {
-            swRet = pFormField->GetOptionValue(nExport);
-            if (swRet.IsEmpty())
-                swRet = pFormField->GetOptionLabel(nExport);
-        }
-    }
-
-    return swRet;
-}
+      break;
+  }
+
+  return FALSE;
+}
+
+void CFFL_ComboBox::SaveState(CPDFSDK_PageView* pPageView) {
+  ASSERT(pPageView != NULL);
+
+  if (CPWL_ComboBox* pComboBox =
+          (CPWL_ComboBox*)GetPDFWindow(pPageView, FALSE)) {
+    m_State.nIndex = pComboBox->GetSelect();
+
+    if (CPWL_Edit* pEdit = (CPWL_Edit*)*pComboBox) {
+      pEdit->GetSel(m_State.nStart, m_State.nEnd);
+      m_State.sValue = pEdit->GetText();
+    }
+  }
+}
+
+void CFFL_ComboBox::RestoreState(CPDFSDK_PageView* pPageView) {
+  ASSERT(pPageView != NULL);
+
+  if (CPWL_ComboBox* pComboBox =
+          (CPWL_ComboBox*)GetPDFWindow(pPageView, TRUE)) {
+    if (m_State.nIndex >= 0)
+      pComboBox->SetSelect(m_State.nIndex);
+    else {
+      if (CPWL_Edit* pEdit = (CPWL_Edit*)*pComboBox) {
+        pEdit->SetText(m_State.sValue.c_str());
+        pEdit->SetSel(m_State.nStart, m_State.nEnd);
+      }
+    }
+  }
+}
+
+CPWL_Wnd* CFFL_ComboBox::ResetPDFWindow(CPDFSDK_PageView* pPageView,
+                                        FX_BOOL bRestoreValue) {
+  if (bRestoreValue)
+    SaveState(pPageView);
+
+  DestroyPDFWindow(pPageView);
+
+  CPWL_Wnd* pRet = NULL;
+
+  if (bRestoreValue) {
+    RestoreState(pPageView);
+    pRet = GetPDFWindow(pPageView, FALSE);
+  } else
+    pRet = GetPDFWindow(pPageView, TRUE);
+
+  m_pWidget->UpdateField();
+
+  return pRet;
+}
+
+void CFFL_ComboBox::OnKeyStroke(FX_BOOL bKeyDown, FX_UINT nFlag) {
+  ASSERT(m_pWidget != NULL);
+
+  int nFlags = m_pWidget->GetFieldFlags();
+
+  if (nFlags & FIELDFLAG_COMMITONSELCHANGE) {
+    if (m_bValid) {
+      CPDFSDK_PageView* pPageView = GetCurPageView();
+      ASSERT(pPageView != NULL);
+
+      if (CommitData(pPageView, nFlag)) {
+        DestroyPDFWindow(pPageView);
+        m_bValid = FALSE;
+      }
+    }
+  }
+}
+
+void CFFL_ComboBox::OnSetFocus(CPWL_Wnd* pWnd) {
+  ASSERT(m_pApp != NULL);
+
+  ASSERT(pWnd != NULL);
+
+  if (pWnd->GetClassName() == PWL_CLASSNAME_EDIT) {
+    CPWL_Edit* pEdit = (CPWL_Edit*)pWnd;
+    pEdit->SetCharSet(134);
+    pEdit->SetCodePage(936);
+
+    pEdit->SetReadyToInput();
+    CFX_WideString wsText = pEdit->GetText();
+    int nCharacters = wsText.GetLength();
+    CFX_ByteString bsUTFText = wsText.UTF16LE_Encode();
+    unsigned short* pBuffer = (unsigned short*)bsUTFText.c_str();
+    m_pApp->FFI_OnSetFieldInputFocus(m_pWidget->GetFormField(), pBuffer,
+                                     nCharacters, TRUE);
+
+    pEdit->SetEditNotify(this);
+  }
+}
+
+void CFFL_ComboBox::OnKillFocus(CPWL_Wnd* pWnd) {
+  ASSERT(m_pApp != NULL);
+}
+
+FX_BOOL CFFL_ComboBox::CanCopy(CPDFSDK_Document* pDocument) {
+  ASSERT(pDocument != NULL);
+
+  return FALSE;
+}
+
+FX_BOOL CFFL_ComboBox::CanCut(CPDFSDK_Document* pDocument) {
+  ASSERT(pDocument != NULL);
+
+  return FALSE;
+}
+
+FX_BOOL CFFL_ComboBox::CanPaste(CPDFSDK_Document* pDocument) {
+  ASSERT(pDocument != NULL);
+
+  return FALSE;
+}
+
+void CFFL_ComboBox::OnAddUndo(CPWL_Edit* pEdit) {
+  ASSERT(pEdit != NULL);
+}
+
+CFX_WideString CFFL_ComboBox::GetSelectExportText() {
+  CFX_WideString swRet;
+
+  int nExport = -1;
+  CPDFSDK_PageView* pPageView = GetCurPageView();
+  if (CPWL_ComboBox* pComboBox =
+          (CPWL_ComboBox*)GetPDFWindow(pPageView, FALSE)) {
+    nExport = pComboBox->GetSelect();
+  }
+
+  if (nExport >= 0) {
+    if (CPDF_FormField* pFormField = m_pWidget->GetFormField()) {
+      swRet = pFormField->GetOptionValue(nExport);
+      if (swRet.IsEmpty())
+        swRet = pFormField->GetOptionLabel(nExport);
+    }
+  }
+
+  return swRet;
+}