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path: root/fpdfsdk/formfiller/cffl_radiobutton.cpp
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// 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/formfiller/cffl_radiobutton.h"

#include "fpdfsdk/cpdfsdk_formfillenvironment.h"
#include "fpdfsdk/cpdfsdk_widget.h"
#include "fpdfsdk/formfiller/cffl_formfiller.h"
#include "fpdfsdk/pwl/cpwl_special_button.h"
#include "public/fpdf_fwlevent.h"

CFFL_RadioButton::CFFL_RadioButton(CPDFSDK_FormFillEnvironment* pApp,
                                   CPDFSDK_Widget* pWidget)
    : CFFL_Button(pApp, pWidget) {}

CFFL_RadioButton::~CFFL_RadioButton() {}

CPWL_Wnd* CFFL_RadioButton::NewPDFWindow(const CPWL_Wnd::CreateParams& cp) {
  auto* pWnd = new CPWL_RadioButton();
  pWnd->Create(cp);
  pWnd->SetCheck(m_pWidget->IsChecked());
  return pWnd;
}

bool CFFL_RadioButton::OnKeyDown(CPDFSDK_Annot* pAnnot,
                                 uint32_t nKeyCode,
                                 uint32_t nFlags) {
  switch (nKeyCode) {
    case FWL_VKEY_Return:
    case FWL_VKEY_Space:
      return true;
    default:
      return CFFL_FormFiller::OnKeyDown(pAnnot, nKeyCode, nFlags);
  }
}

bool CFFL_RadioButton::OnChar(CPDFSDK_Annot* pAnnot,
                              uint32_t nChar,
                              uint32_t nFlags) {
  switch (nChar) {
    case FWL_VKEY_Return:
    case FWL_VKEY_Space: {
      CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
      ASSERT(pPageView);

      CPDFSDK_Annot::ObservedPtr pObserved(m_pWidget.Get());
      if (m_pFormFillEnv->GetInteractiveFormFiller()->OnButtonUp(
              &pObserved, pPageView, nFlags) ||
          !pObserved) {
        return true;
      }

      CFFL_FormFiller::OnChar(pAnnot, nChar, nFlags);
      CPWL_RadioButton* pWnd = GetRadioButton(pPageView, true);
      if (pWnd)
        pWnd->SetCheck(true);
      return CommitData(pPageView, nFlags);
    }
    default:
      return CFFL_FormFiller::OnChar(pAnnot, nChar, nFlags);
  }
}

bool CFFL_RadioButton::OnLButtonUp(CPDFSDK_PageView* pPageView,
                                   CPDFSDK_Annot* pAnnot,
                                   uint32_t nFlags,
                                   const CFX_PointF& point) {
  CFFL_Button::OnLButtonUp(pPageView, pAnnot, nFlags, point);

  if (!IsValid())
    return true;

  CPWL_RadioButton* pWnd = GetRadioButton(pPageView, true);
  if (pWnd)
    pWnd->SetCheck(true);

  return CommitData(pPageView, nFlags);
}

bool CFFL_RadioButton::IsDataChanged(CPDFSDK_PageView* pPageView) {
  CPWL_RadioButton* pWnd = GetRadioButton(pPageView, false);
  return pWnd && pWnd->IsChecked() != m_pWidget->IsChecked();
}

void CFFL_RadioButton::SaveData(CPDFSDK_PageView* pPageView) {
  CPWL_RadioButton* pWnd = GetRadioButton(pPageView, false);
  if (!pWnd)
    return;

  bool bNewChecked = pWnd->IsChecked();

  if (bNewChecked) {
    CPDF_FormField* pField = m_pWidget->GetFormField();
    for (int32_t i = 0, sz = pField->CountControls(); i < sz; i++) {
      if (CPDF_FormControl* pCtrl = pField->GetControl(i)) {
        if (pCtrl->IsChecked()) {
          break;
        }
      }
    }
  }

  m_pWidget->SetCheck(bNewChecked, false);
  m_pWidget->UpdateField();
  SetChangeMark();
}

CPWL_RadioButton* CFFL_RadioButton::GetRadioButton(CPDFSDK_PageView* pPageView,
                                                   bool bNew) {
  return static_cast<CPWL_RadioButton*>(GetPDFWindow(pPageView, bNew));
}