Move fpdfsdk/src up to fpdfsdk/.

This CL moves the files in fpdfsdk/src/ up one level to fpdfsdk/ and fixes
up the include paths, include guards and build files.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1799773002 .

1 files changed, 651 insertions, 0 deletions

diff --git a/fpdfsdk/pdfwindow/PWL_ComboBox.cpp b/fpdfsdk/pdfwindow/PWL_ComboBox.cpp
new file mode 100644
index 0000000000..6edd6bdd85
--- /dev/null
+++ b/fpdfsdk/pdfwindow/PWL_ComboBox.cpp
@@ -0,0 +1,651 @@
+// 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 "fpdfsdk/include/pdfwindow/PWL_ComboBox.h"
+
+#include "fpdfsdk/include/pdfwindow/PWL_Edit.h"
+#include "fpdfsdk/include/pdfwindow/PWL_EditCtrl.h"
+#include "fpdfsdk/include/pdfwindow/PWL_ListBox.h"
+#include "fpdfsdk/include/pdfwindow/PWL_Utils.h"
+#include "fpdfsdk/include/pdfwindow/PWL_Wnd.h"
+#include "public/fpdf_fwlevent.h"
+
+#define PWLCB_DEFAULTFONTSIZE 12.0f
+
+#define IsFloatZero(f) ((f) < 0.0001 && (f) > -0.0001)
+#define IsFloatBigger(fa, fb) ((fa) > (fb) && !IsFloatZero((fa) - (fb)))
+#define IsFloatSmaller(fa, fb) ((fa) < (fb) && !IsFloatZero((fa) - (fb)))
+#define IsFloatEqual(fa, fb) IsFloatZero((fa) - (fb))
+
+FX_BOOL CPWL_CBListBox::OnLButtonUp(const CFX_FloatPoint& point,
+                                    FX_DWORD nFlag) {
+  CPWL_Wnd::OnLButtonUp(point, nFlag);
+
+  if (m_bMouseDown) {
+    ReleaseCapture();
+    m_bMouseDown = FALSE;
+
+    if (ClientHitTest(point)) {
+      if (CPWL_Wnd* pParent = GetParentWindow()) {
+        pParent->OnNotify(this, PNM_LBUTTONUP, 0,
+                          PWL_MAKEDWORD(point.x, point.y));
+      }
+
+      FX_BOOL bExit = FALSE;
+      OnNotifySelChanged(FALSE, bExit, nFlag);
+      if (bExit)
+        return FALSE;
+    }
+  }
+
+  return TRUE;
+}
+
+FX_BOOL CPWL_CBListBox::OnKeyDownWithExit(FX_WORD nChar,
+                                          FX_BOOL& bExit,
+                                          FX_DWORD nFlag) {
+  if (!m_pList)
+    return FALSE;
+
+  switch (nChar) {
+    default:
+      return FALSE;
+    case FWL_VKEY_Up:
+    case FWL_VKEY_Down:
+    case FWL_VKEY_Home:
+    case FWL_VKEY_Left:
+    case FWL_VKEY_End:
+    case FWL_VKEY_Right:
+      break;
+  }
+
+  switch (nChar) {
+    case FWL_VKEY_Up:
+      m_pList->OnVK_UP(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
+      break;
+    case FWL_VKEY_Down:
+      m_pList->OnVK_DOWN(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
+      break;
+    case FWL_VKEY_Home:
+      m_pList->OnVK_HOME(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
+      break;
+    case FWL_VKEY_Left:
+      m_pList->OnVK_LEFT(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
+      break;
+    case FWL_VKEY_End:
+      m_pList->OnVK_END(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
+      break;
+    case FWL_VKEY_Right:
+      m_pList->OnVK_RIGHT(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
+      break;
+    case FWL_VKEY_Delete:
+      break;
+  }
+
+  OnNotifySelChanged(TRUE, bExit, nFlag);
+
+  return TRUE;
+}
+
+FX_BOOL CPWL_CBListBox::OnCharWithExit(FX_WORD nChar,
+                                       FX_BOOL& bExit,
+                                       FX_DWORD nFlag) {
+  if (!m_pList)
+    return FALSE;
+
+  if (!m_pList->OnChar(nChar, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)))
+    return FALSE;
+
+  if (CPWL_ComboBox* pComboBox = (CPWL_ComboBox*)GetParentWindow()) {
+    pComboBox->SetSelectText();
+  }
+
+  OnNotifySelChanged(TRUE, bExit, nFlag);
+
+  return TRUE;
+}
+
+void CPWL_CBButton::GetThisAppearanceStream(CFX_ByteTextBuf& sAppStream) {
+  CPWL_Wnd::GetThisAppearanceStream(sAppStream);
+
+  CFX_FloatRect rectWnd = CPWL_Wnd::GetWindowRect();
+
+  if (IsVisible() && !rectWnd.IsEmpty()) {
+    CFX_ByteTextBuf sButton;
+
+    CFX_FloatPoint ptCenter = GetCenterPoint();
+
+    CFX_FloatPoint pt1(ptCenter.x - PWL_CBBUTTON_TRIANGLE_HALFLEN,
+                       ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
+    CFX_FloatPoint pt2(ptCenter.x + PWL_CBBUTTON_TRIANGLE_HALFLEN,
+                       ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
+    CFX_FloatPoint pt3(ptCenter.x,
+                       ptCenter.y - PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
+
+    if (IsFloatBigger(rectWnd.right - rectWnd.left,
+                      PWL_CBBUTTON_TRIANGLE_HALFLEN * 2) &&
+        IsFloatBigger(rectWnd.top - rectWnd.bottom,
+                      PWL_CBBUTTON_TRIANGLE_HALFLEN)) {
+      sButton << "0 g\n";
+      sButton << pt1.x << " " << pt1.y << " m\n";
+      sButton << pt2.x << " " << pt2.y << " l\n";
+      sButton << pt3.x << " " << pt3.y << " l\n";
+      sButton << pt1.x << " " << pt1.y << " l f\n";
+
+      sAppStream << "q\n" << sButton << "Q\n";
+    }
+  }
+}
+
+void CPWL_CBButton::DrawThisAppearance(CFX_RenderDevice* pDevice,
+                                       CFX_Matrix* pUser2Device) {
+  CPWL_Wnd::DrawThisAppearance(pDevice, pUser2Device);
+
+  CFX_FloatRect rectWnd = CPWL_Wnd::GetWindowRect();
+
+  if (IsVisible() && !rectWnd.IsEmpty()) {
+    CFX_FloatPoint ptCenter = GetCenterPoint();
+
+    CFX_FloatPoint pt1(ptCenter.x - PWL_CBBUTTON_TRIANGLE_HALFLEN,
+                       ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
+    CFX_FloatPoint pt2(ptCenter.x + PWL_CBBUTTON_TRIANGLE_HALFLEN,
+                       ptCenter.y + PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
+    CFX_FloatPoint pt3(ptCenter.x,
+                       ptCenter.y - PWL_CBBUTTON_TRIANGLE_HALFLEN * 0.5f);
+
+    if (IsFloatBigger(rectWnd.right - rectWnd.left,
+                      PWL_CBBUTTON_TRIANGLE_HALFLEN * 2) &&
+        IsFloatBigger(rectWnd.top - rectWnd.bottom,
+                      PWL_CBBUTTON_TRIANGLE_HALFLEN)) {
+      CFX_PathData path;
+
+      path.SetPointCount(4);
+      path.SetPoint(0, pt1.x, pt1.y, FXPT_MOVETO);
+      path.SetPoint(1, pt2.x, pt2.y, FXPT_LINETO);
+      path.SetPoint(2, pt3.x, pt3.y, FXPT_LINETO);
+      path.SetPoint(3, pt1.x, pt1.y, FXPT_LINETO);
+
+      pDevice->DrawPath(&path, pUser2Device, NULL,
+                        CPWL_Utils::PWLColorToFXColor(PWL_DEFAULT_BLACKCOLOR,
+                                                      GetTransparency()),
+                        0, FXFILL_ALTERNATE);
+    }
+  }
+}
+
+FX_BOOL CPWL_CBButton::OnLButtonDown(const CFX_FloatPoint& point,
+                                     FX_DWORD nFlag) {
+  CPWL_Wnd::OnLButtonDown(point, nFlag);
+
+  SetCapture();
+
+  if (CPWL_Wnd* pParent = GetParentWindow()) {
+    pParent->OnNotify(this, PNM_LBUTTONDOWN, 0,
+                      PWL_MAKEDWORD(point.x, point.y));
+  }
+
+  return TRUE;
+}
+
+FX_BOOL CPWL_CBButton::OnLButtonUp(const CFX_FloatPoint& point,
+                                   FX_DWORD nFlag) {
+  CPWL_Wnd::OnLButtonUp(point, nFlag);
+
+  ReleaseCapture();
+
+  return TRUE;
+}
+
+CPWL_ComboBox::CPWL_ComboBox()
+    : m_pEdit(NULL),
+      m_pButton(NULL),
+      m_pList(NULL),
+      m_bPopup(FALSE),
+      m_nPopupWhere(0),
+      m_nSelectItem(-1),
+      m_pFillerNotify(NULL) {}
+
+CFX_ByteString CPWL_ComboBox::GetClassName() const {
+  return "CPWL_ComboBox";
+}
+
+void CPWL_ComboBox::OnCreate(PWL_CREATEPARAM& cp) {
+  cp.dwFlags &= ~PWS_HSCROLL;
+  cp.dwFlags &= ~PWS_VSCROLL;
+}
+
+void CPWL_ComboBox::SetFocus() {
+  if (m_pEdit)
+    m_pEdit->SetFocus();
+}
+
+void CPWL_ComboBox::KillFocus() {
+  SetPopup(FALSE);
+  CPWL_Wnd::KillFocus();
+}
+
+CFX_WideString CPWL_ComboBox::GetText() const {
+  if (m_pEdit) {
+    return m_pEdit->GetText();
+  }
+  return CFX_WideString();
+}
+
+void CPWL_ComboBox::SetText(const FX_WCHAR* text) {
+  if (m_pEdit)
+    m_pEdit->SetText(text);
+}
+
+void CPWL_ComboBox::AddString(const FX_WCHAR* str) {
+  if (m_pList)
+    m_pList->AddString(str);
+}
+
+int32_t CPWL_ComboBox::GetSelect() const {
+  return m_nSelectItem;
+}
+
+void CPWL_ComboBox::SetSelect(int32_t nItemIndex) {
+  if (m_pList)
+    m_pList->Select(nItemIndex);
+
+  m_pEdit->SetText(m_pList->GetText().c_str());
+
+  m_nSelectItem = nItemIndex;
+}
+
+void CPWL_ComboBox::SetEditSel(int32_t nStartChar, int32_t nEndChar) {
+  if (m_pEdit) {
+    m_pEdit->SetSel(nStartChar, nEndChar);
+  }
+}
+
+void CPWL_ComboBox::GetEditSel(int32_t& nStartChar, int32_t& nEndChar) const {
+  nStartChar = -1;
+  nEndChar = -1;
+
+  if (m_pEdit) {
+    m_pEdit->GetSel(nStartChar, nEndChar);
+  }
+}
+
+void CPWL_ComboBox::Clear() {
+  if (m_pEdit) {
+    m_pEdit->Clear();
+  }
+}
+
+void CPWL_ComboBox::CreateChildWnd(const PWL_CREATEPARAM& cp) {
+  CreateEdit(cp);
+  CreateButton(cp);
+  CreateListBox(cp);
+}
+
+void CPWL_ComboBox::CreateEdit(const PWL_CREATEPARAM& cp) {
+  if (!m_pEdit) {
+    m_pEdit = new CPWL_CBEdit;
+    m_pEdit->AttachFFLData(m_pFormFiller);
+
+    PWL_CREATEPARAM ecp = cp;
+    ecp.pParentWnd = this;
+    ecp.dwFlags = PWS_VISIBLE | PWS_CHILD | PWS_BORDER | PES_CENTER |
+                  PES_AUTOSCROLL | PES_UNDO;
+
+    if (HasFlag(PWS_AUTOFONTSIZE))
+      ecp.dwFlags |= PWS_AUTOFONTSIZE;
+
+    if (!HasFlag(PCBS_ALLOWCUSTOMTEXT))
+      ecp.dwFlags |= PWS_READONLY;
+
+    ecp.rcRectWnd = CFX_FloatRect(0, 0, 0, 0);
+    ecp.dwBorderWidth = 0;
+    ecp.nBorderStyle = PBS_SOLID;
+
+    m_pEdit->Create(ecp);
+  }
+}
+
+void CPWL_ComboBox::CreateButton(const PWL_CREATEPARAM& cp) {
+  if (!m_pButton) {
+    m_pButton = new CPWL_CBButton;
+
+    PWL_CREATEPARAM bcp = cp;
+    bcp.pParentWnd = this;
+    bcp.dwFlags = PWS_VISIBLE | PWS_CHILD | PWS_BORDER | PWS_BACKGROUND;
+    bcp.sBackgroundColor = PWL_SCROLLBAR_BKCOLOR;
+    bcp.sBorderColor = PWL_DEFAULT_BLACKCOLOR;
+    bcp.dwBorderWidth = 2;
+    bcp.nBorderStyle = PBS_BEVELED;
+    bcp.eCursorType = FXCT_ARROW;
+
+    m_pButton->Create(bcp);
+  }
+}
+
+void CPWL_ComboBox::CreateListBox(const PWL_CREATEPARAM& cp) {
+  if (!m_pList) {
+    m_pList = new CPWL_CBListBox;
+    m_pList->AttachFFLData(m_pFormFiller);
+    PWL_CREATEPARAM lcp = cp;
+    lcp.pParentWnd = this;
+    lcp.dwFlags =
+        PWS_CHILD | PWS_BORDER | PWS_BACKGROUND | PLBS_HOVERSEL | PWS_VSCROLL;
+    lcp.nBorderStyle = PBS_SOLID;
+    lcp.dwBorderWidth = 1;
+    lcp.eCursorType = FXCT_ARROW;
+    lcp.rcRectWnd = CFX_FloatRect(0, 0, 0, 0);
+
+    if (cp.dwFlags & PWS_AUTOFONTSIZE)
+      lcp.fFontSize = PWLCB_DEFAULTFONTSIZE;
+    else
+      lcp.fFontSize = cp.fFontSize;
+
+    if (cp.sBorderColor.nColorType == COLORTYPE_TRANSPARENT)
+      lcp.sBorderColor = PWL_DEFAULT_BLACKCOLOR;
+
+    if (cp.sBackgroundColor.nColorType == COLORTYPE_TRANSPARENT)
+      lcp.sBackgroundColor = PWL_DEFAULT_WHITECOLOR;
+
+    m_pList->Create(lcp);
+  }
+}
+
+void CPWL_ComboBox::RePosChildWnd() {
+  CFX_FloatRect rcClient = GetClientRect();
+
+  if (m_bPopup) {
+    CFX_FloatRect rclient = GetClientRect();
+    CFX_FloatRect rcButton = rclient;
+    CFX_FloatRect rcEdit = rcClient;
+    CFX_FloatRect rcList = CPWL_Wnd::GetWindowRect();
+
+    FX_FLOAT fOldWindowHeight = m_rcOldWindow.Height();
+    FX_FLOAT fOldClientHeight = fOldWindowHeight - GetBorderWidth() * 2;
+
+    switch (m_nPopupWhere) {
+      case 0:
+        rcButton.left = rcButton.right - PWL_COMBOBOX_BUTTON_WIDTH;
+
+        if (rcButton.left < rclient.left)
+          rcButton.left = rclient.left;
+
+        rcButton.bottom = rcButton.top - fOldClientHeight;
+
+        rcEdit.right = rcButton.left - 1.0f;
+
+        if (rcEdit.left < rclient.left)
+          rcEdit.left = rclient.left;
+
+        if (rcEdit.right < rcEdit.left)
+          rcEdit.right = rcEdit.left;
+
+        rcEdit.bottom = rcEdit.top - fOldClientHeight;
+
+        rcList.top -= fOldWindowHeight;
+
+        break;
+      case 1:
+        rcButton.left = rcButton.right - PWL_COMBOBOX_BUTTON_WIDTH;
+
+        if (rcButton.left < rclient.left)
+          rcButton.left = rclient.left;
+
+        rcButton.top = rcButton.bottom + fOldClientHeight;
+
+        rcEdit.right = rcButton.left - 1.0f;
+
+        if (rcEdit.left < rclient.left)
+          rcEdit.left = rclient.left;
+
+        if (rcEdit.right < rcEdit.left)
+          rcEdit.right = rcEdit.left;
+
+        rcEdit.top = rcEdit.bottom + fOldClientHeight;
+
+        rcList.bottom += fOldWindowHeight;
+
+        break;
+    }
+
+    if (m_pButton)
+      m_pButton->Move(rcButton, TRUE, FALSE);
+
+    if (m_pEdit)
+      m_pEdit->Move(rcEdit, TRUE, FALSE);
+
+    if (m_pList) {
+      m_pList->SetVisible(TRUE);
+      m_pList->Move(rcList, TRUE, FALSE);
+      m_pList->ScrollToListItem(m_nSelectItem);
+    }
+  } else {
+    CFX_FloatRect rcButton = rcClient;
+
+    rcButton.left = rcButton.right - PWL_COMBOBOX_BUTTON_WIDTH;
+
+    if (rcButton.left < rcClient.left)
+      rcButton.left = rcClient.left;
+
+    if (m_pButton)
+      m_pButton->Move(rcButton, TRUE, FALSE);
+
+    CFX_FloatRect rcEdit = rcClient;
+    rcEdit.right = rcButton.left - 1.0f;
+
+    if (rcEdit.left < rcClient.left)
+      rcEdit.left = rcClient.left;
+
+    if (rcEdit.right < rcEdit.left)
+      rcEdit.right = rcEdit.left;
+
+    if (m_pEdit)
+      m_pEdit->Move(rcEdit, TRUE, FALSE);
+
+    if (m_pList)
+      m_pList->SetVisible(FALSE);
+  }
+}
+
+void CPWL_ComboBox::SelectAll() {
+  if (m_pEdit && HasFlag(PCBS_ALLOWCUSTOMTEXT))
+    m_pEdit->SelectAll();
+}
+
+CFX_FloatRect CPWL_ComboBox::GetFocusRect() const {
+  return CFX_FloatRect();
+}
+
+void CPWL_ComboBox::SetPopup(FX_BOOL bPopup) {
+  if (!m_pList)
+    return;
+  if (bPopup == m_bPopup)
+    return;
+  FX_FLOAT fListHeight = m_pList->GetContentRect().Height();
+  if (!IsFloatBigger(fListHeight, 0.0f))
+    return;
+
+  if (bPopup) {
+    if (m_pFillerNotify) {
+#ifdef PDF_ENABLE_XFA
+      FX_BOOL bExit = FALSE;
+      m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), bExit, 0);
+      if (bExit)
+        return;
+#endif  // PDF_ENABLE_XFA
+      int32_t nWhere = 0;
+      FX_FLOAT fPopupRet = 0.0f;
+      FX_FLOAT fPopupMin = 0.0f;
+      if (m_pList->GetCount() > 3)
+        fPopupMin =
+            m_pList->GetFirstHeight() * 3 + m_pList->GetBorderWidth() * 2;
+      FX_FLOAT fPopupMax = fListHeight + m_pList->GetBorderWidth() * 2;
+      m_pFillerNotify->QueryWherePopup(GetAttachedData(), fPopupMin, fPopupMax,
+                                       nWhere, fPopupRet);
+
+      if (IsFloatBigger(fPopupRet, 0.0f)) {
+        m_bPopup = bPopup;
+
+        CFX_FloatRect rcWindow = CPWL_Wnd::GetWindowRect();
+        m_rcOldWindow = rcWindow;
+        switch (nWhere) {
+          default:
+          case 0:
+            rcWindow.bottom -= fPopupRet;
+            break;
+          case 1:
+            rcWindow.top += fPopupRet;
+            break;
+        }
+
+        m_nPopupWhere = nWhere;
+        Move(rcWindow, TRUE, TRUE);
+#ifdef PDF_ENABLE_XFA
+        bExit = FALSE;
+        m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), bExit, 0);
+        if (bExit)
+          return;
+#endif  // PDF_ENABLE_XFA
+      }
+    }
+  } else {
+    m_bPopup = bPopup;
+    Move(m_rcOldWindow, TRUE, TRUE);
+  }
+}
+
+FX_BOOL CPWL_ComboBox::OnKeyDown(FX_WORD nChar, FX_DWORD nFlag) {
+  if (!m_pList)
+    return FALSE;
+  if (!m_pEdit)
+    return FALSE;
+
+  m_nSelectItem = -1;
+
+  switch (nChar) {
+    case FWL_VKEY_Up:
+      if (m_pList->GetCurSel() > 0) {
+        FX_BOOL bExit = FALSE;
+#ifdef PDF_ENABLE_XFA
+        if (m_pFillerNotify) {
+          m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), bExit, nFlag);
+          if (bExit)
+            return FALSE;
+          bExit = FALSE;
+          m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), bExit, nFlag);
+          if (bExit)
+            return FALSE;
+        }
+#endif  // PDF_ENABLE_XFA
+        if (m_pList->OnKeyDownWithExit(nChar, bExit, nFlag)) {
+          if (bExit)
+            return FALSE;
+          SetSelectText();
+        }
+      }
+      return TRUE;
+    case FWL_VKEY_Down:
+      if (m_pList->GetCurSel() < m_pList->GetCount() - 1) {
+        FX_BOOL bExit = FALSE;
+#ifdef PDF_ENABLE_XFA
+        if (m_pFillerNotify) {
+          m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), bExit, nFlag);
+          if (bExit)
+            return FALSE;
+          bExit = FALSE;
+          m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), bExit, nFlag);
+          if (bExit)
+            return FALSE;
+        }
+#endif  // PDF_ENABLE_XFA
+        if (m_pList->OnKeyDownWithExit(nChar, bExit, nFlag)) {
+          if (bExit)
+            return FALSE;
+          SetSelectText();
+        }
+      }
+      return TRUE;
+  }
+
+  if (HasFlag(PCBS_ALLOWCUSTOMTEXT))
+    return m_pEdit->OnKeyDown(nChar, nFlag);
+
+  return FALSE;
+}
+
+FX_BOOL CPWL_ComboBox::OnChar(FX_WORD nChar, FX_DWORD nFlag) {
+  if (!m_pList)
+    return FALSE;
+
+  if (!m_pEdit)
+    return FALSE;
+
+  m_nSelectItem = -1;
+  if (HasFlag(PCBS_ALLOWCUSTOMTEXT))
+    return m_pEdit->OnChar(nChar, nFlag);
+
+  FX_BOOL bExit = FALSE;
+#ifdef PDF_ENABLE_XFA
+  if (m_pFillerNotify) {
+    m_pFillerNotify->OnPopupPreOpen(GetAttachedData(), bExit, nFlag);
+    if (bExit)
+      return FALSE;
+
+    m_pFillerNotify->OnPopupPostOpen(GetAttachedData(), bExit, nFlag);
+    if (bExit)
+      return FALSE;
+  }
+#endif  // PDF_ENABLE_XFA
+  return m_pList->OnCharWithExit(nChar, bExit, nFlag) ? bExit : FALSE;
+}
+
+void CPWL_ComboBox::OnNotify(CPWL_Wnd* pWnd,
+                             FX_DWORD msg,
+                             intptr_t wParam,
+                             intptr_t lParam) {
+  switch (msg) {
+    case PNM_LBUTTONDOWN:
+      if (pWnd == m_pButton) {
+        SetPopup(!m_bPopup);
+        return;
+      }
+      break;
+    case PNM_LBUTTONUP:
+      if (m_pEdit && m_pList) {
+        if (pWnd == m_pList) {
+          SetSelectText();
+          SelectAll();
+          m_pEdit->SetFocus();
+          SetPopup(FALSE);
+          return;
+        }
+      }
+  }
+
+  CPWL_Wnd::OnNotify(pWnd, msg, wParam, lParam);
+}
+
+FX_BOOL CPWL_ComboBox::IsPopup() const {
+  return m_bPopup;
+}
+
+void CPWL_ComboBox::SetSelectText() {
+  CFX_WideString swText = m_pList->GetText();
+  m_pEdit->SelectAll();
+  m_pEdit->ReplaceSel(m_pList->GetText().c_str());
+  m_pEdit->SelectAll();
+
+  m_nSelectItem = m_pList->GetCurSel();
+}
+
+void CPWL_ComboBox::SetFillerNotify(IPWL_Filler_Notify* pNotify) {
+  m_pFillerNotify = pNotify;
+
+  if (m_pEdit)
+    m_pEdit->SetFillerNotify(pNotify);
+
+  if (m_pList)
+    m_pList->SetFillerNotify(pNotify);
+}