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      1 // Copyright 2014 PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
      6 
      7 #include "fpdfsdk/formfiller/cffl_radiobutton.h"
      8 
      9 #include "fpdfsdk/cpdfsdk_formfillenvironment.h"
     10 #include "fpdfsdk/cpdfsdk_widget.h"
     11 #include "fpdfsdk/formfiller/cffl_formfiller.h"
     12 #include "fpdfsdk/pwl/cpwl_special_button.h"
     13 #include "public/fpdf_fwlevent.h"
     14 
     15 CFFL_RadioButton::CFFL_RadioButton(CPDFSDK_FormFillEnvironment* pApp,
     16                                    CPDFSDK_Widget* pWidget)
     17     : CFFL_Button(pApp, pWidget) {}
     18 
     19 CFFL_RadioButton::~CFFL_RadioButton() {}
     20 
     21 CPWL_Wnd* CFFL_RadioButton::NewPDFWindow(const CPWL_Wnd::CreateParams& cp) {
     22   auto* pWnd = new CPWL_RadioButton();
     23   pWnd->Create(cp);
     24   pWnd->SetCheck(m_pWidget->IsChecked());
     25   return pWnd;
     26 }
     27 
     28 bool CFFL_RadioButton::OnKeyDown(CPDFSDK_Annot* pAnnot,
     29                                  uint32_t nKeyCode,
     30                                  uint32_t nFlags) {
     31   switch (nKeyCode) {
     32     case FWL_VKEY_Return:
     33     case FWL_VKEY_Space:
     34       return true;
     35     default:
     36       return CFFL_FormFiller::OnKeyDown(pAnnot, nKeyCode, nFlags);
     37   }
     38 }
     39 
     40 bool CFFL_RadioButton::OnChar(CPDFSDK_Annot* pAnnot,
     41                               uint32_t nChar,
     42                               uint32_t nFlags) {
     43   switch (nChar) {
     44     case FWL_VKEY_Return:
     45     case FWL_VKEY_Space: {
     46       CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
     47       ASSERT(pPageView);
     48 
     49       CPDFSDK_Annot::ObservedPtr pObserved(m_pWidget.Get());
     50       if (m_pFormFillEnv->GetInteractiveFormFiller()->OnButtonUp(
     51               &pObserved, pPageView, nFlags) ||
     52           !pObserved) {
     53         return true;
     54       }
     55 
     56       CFFL_FormFiller::OnChar(pAnnot, nChar, nFlags);
     57       CPWL_RadioButton* pWnd = GetRadioButton(pPageView, true);
     58       if (pWnd)
     59         pWnd->SetCheck(true);
     60       return CommitData(pPageView, nFlags);
     61     }
     62     default:
     63       return CFFL_FormFiller::OnChar(pAnnot, nChar, nFlags);
     64   }
     65 }
     66 
     67 bool CFFL_RadioButton::OnLButtonUp(CPDFSDK_PageView* pPageView,
     68                                    CPDFSDK_Annot* pAnnot,
     69                                    uint32_t nFlags,
     70                                    const CFX_PointF& point) {
     71   CFFL_Button::OnLButtonUp(pPageView, pAnnot, nFlags, point);
     72 
     73   if (!IsValid())
     74     return true;
     75 
     76   CPWL_RadioButton* pWnd = GetRadioButton(pPageView, true);
     77   if (pWnd)
     78     pWnd->SetCheck(true);
     79 
     80   return CommitData(pPageView, nFlags);
     81 }
     82 
     83 bool CFFL_RadioButton::IsDataChanged(CPDFSDK_PageView* pPageView) {
     84   CPWL_RadioButton* pWnd = GetRadioButton(pPageView, false);
     85   return pWnd && pWnd->IsChecked() != m_pWidget->IsChecked();
     86 }
     87 
     88 void CFFL_RadioButton::SaveData(CPDFSDK_PageView* pPageView) {
     89   CPWL_RadioButton* pWnd = GetRadioButton(pPageView, false);
     90   if (!pWnd)
     91     return;
     92 
     93   bool bNewChecked = pWnd->IsChecked();
     94 
     95   if (bNewChecked) {
     96     CPDF_FormField* pField = m_pWidget->GetFormField();
     97     for (int32_t i = 0, sz = pField->CountControls(); i < sz; i++) {
     98       if (CPDF_FormControl* pCtrl = pField->GetControl(i)) {
     99         if (pCtrl->IsChecked()) {
    100           break;
    101         }
    102       }
    103     }
    104   }
    105   CPDFSDK_Widget::ObservedPtr observed_widget(m_pWidget.Get());
    106   CFFL_RadioButton::ObservedPtr observed_this(this);
    107 
    108   m_pWidget->SetCheck(bNewChecked, false);
    109   if (!observed_widget)
    110     return;
    111   m_pWidget->UpdateField();
    112   if (!observed_widget || !observed_this)
    113     return;
    114   SetChangeMark();
    115 }
    116 
    117 CPWL_RadioButton* CFFL_RadioButton::GetRadioButton(CPDFSDK_PageView* pPageView,
    118                                                    bool bNew) {
    119   return static_cast<CPWL_RadioButton*>(GetPDFWindow(pPageView, bNew));
    120 }
    121