cpwl_cblistbox.cpp

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// Copyright 2020 The PDFium Authors
// 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/pwl/cpwl_cblistbox.h"
 
#include <utility>
 
#include "fpdfsdk/pwl/cpwl_combo_box.h"
#include "fpdfsdk/pwl/cpwl_list_ctrl.h"
#include "public/fpdf_fwlevent.h"
#include "third_party/base/notreached.h"
 
CPWL_CBListBox::CPWL_CBListBox(
    const CreateParams& cp,
    std::unique_ptr<IPWL_FillerNotify::PerWindowData> pAttachedData)
    : CPWL_ListBox(cp, std::move(pAttachedData)) {}
 
CPWL_CBListBox::~CPWL_CBListBox() = default;
 
bool CPWL_CBListBox::OnLButtonUp(Mask<FWL_EVENTFLAG> nFlag,
                                 const CFX_PointF& point) {
  CPWL_Wnd::OnLButtonUp(nFlag, point);
 
  if (!m_bMouseDown)
    return true;
 
  ReleaseCapture();
  m_bMouseDown = false;
 
  if (!ClientHitTest(point))
    return true;
  if (CPWL_Wnd* pParent = GetParentWindow())
    pParent->NotifyLButtonUp(this, point);
 
  return !OnNotifySelectionChanged(false, nFlag);
}
 
bool CPWL_CBListBox::IsMovementKey(FWL_VKEYCODE nKeyCode) const {
  switch (nKeyCode) {
    case FWL_VKEY_Up:
    case FWL_VKEY_Down:
    case FWL_VKEY_Home:
    case FWL_VKEY_Left:
    case FWL_VKEY_End:
    case FWL_VKEY_Right:
      return true;
    default:
      return false;
  }
}
 
bool CPWL_CBListBox::OnMovementKeyDown(FWL_VKEYCODE nKeyCode,
                                       Mask<FWL_EVENTFLAG> nFlag) {
  switch (nKeyCode) {
    case FWL_VKEY_Up:
      m_pListCtrl->OnVK_UP(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
      break;
    case FWL_VKEY_Down:
      m_pListCtrl->OnVK_DOWN(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
      break;
    case FWL_VKEY_Home:
      m_pListCtrl->OnVK_HOME(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
      break;
    case FWL_VKEY_Left:
      m_pListCtrl->OnVK_LEFT(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
      break;
    case FWL_VKEY_End:
      m_pListCtrl->OnVK_END(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
      break;
    case FWL_VKEY_Right:
      m_pListCtrl->OnVK_RIGHT(IsSHIFTKeyDown(nFlag), IsCTRLKeyDown(nFlag));
      break;
    default:
      NOTREACHED_NORETURN();
  }
  return OnNotifySelectionChanged(true, nFlag);
}
 
bool CPWL_CBListBox::IsChar(uint16_t nChar, Mask<FWL_EVENTFLAG> nFlag) const {
  return m_pListCtrl->OnChar(nChar, IsSHIFTKeyDown(nFlag),
                             IsCTRLKeyDown(nFlag));
}
 
bool CPWL_CBListBox::OnCharNotify(uint16_t nChar, Mask<FWL_EVENTFLAG> nFlag) {
  if (auto* pComboBox = static_cast<CPWL_ComboBox*>(GetParentWindow()))
    pComboBox->SetSelectText();
 
  return OnNotifySelectionChanged(true, nFlag);
}