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_checkbox.h"
8
9 #include <utility>
10
11 #include "core/fpdfdoc/cpdf_formcontrol.h"
12 #include "fpdfsdk/cpdfsdk_formfillenvironment.h"
13 #include "fpdfsdk/cpdfsdk_widget.h"
14 #include "fpdfsdk/formfiller/cffl_formfiller.h"
15 #include "fpdfsdk/pwl/cpwl_special_button.h"
16 #include "public/fpdf_fwlevent.h"
17 #include "third_party/base/ptr_util.h"
18
CFFL_CheckBox(CPDFSDK_FormFillEnvironment * pApp,CPDFSDK_Widget * pWidget)19 CFFL_CheckBox::CFFL_CheckBox(CPDFSDK_FormFillEnvironment* pApp,
20 CPDFSDK_Widget* pWidget)
21 : CFFL_Button(pApp, pWidget) {}
22
~CFFL_CheckBox()23 CFFL_CheckBox::~CFFL_CheckBox() {}
24
NewPWLWindow(const CPWL_Wnd::CreateParams & cp,std::unique_ptr<IPWL_SystemHandler::PerWindowData> pAttachedData)25 std::unique_ptr<CPWL_Wnd> CFFL_CheckBox::NewPWLWindow(
26 const CPWL_Wnd::CreateParams& cp,
27 std::unique_ptr<IPWL_SystemHandler::PerWindowData> pAttachedData) {
28 auto pWnd = pdfium::MakeUnique<CPWL_CheckBox>(cp, std::move(pAttachedData));
29 pWnd->Realize();
30 pWnd->SetCheck(m_pWidget->IsChecked());
31 return std::move(pWnd);
32 }
33
OnKeyDown(uint32_t nKeyCode,uint32_t nFlags)34 bool CFFL_CheckBox::OnKeyDown(uint32_t nKeyCode, uint32_t nFlags) {
35 switch (nKeyCode) {
36 case FWL_VKEY_Return:
37 case FWL_VKEY_Space:
38 return true;
39 default:
40 return CFFL_FormFiller::OnKeyDown(nKeyCode, nFlags);
41 }
42 }
OnChar(CPDFSDK_Annot * pAnnot,uint32_t nChar,uint32_t nFlags)43 bool CFFL_CheckBox::OnChar(CPDFSDK_Annot* pAnnot,
44 uint32_t nChar,
45 uint32_t nFlags) {
46 switch (nChar) {
47 case FWL_VKEY_Return:
48 case FWL_VKEY_Space: {
49 CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
50 ASSERT(pPageView);
51
52 ObservedPtr<CPDFSDK_Annot> pObserved(m_pWidget.Get());
53 if (m_pFormFillEnv->GetInteractiveFormFiller()->OnButtonUp(
54 &pObserved, pPageView, nFlags)) {
55 if (!pObserved)
56 m_pWidget = nullptr;
57 return true;
58 }
59 if (!pObserved) {
60 m_pWidget = nullptr;
61 return true;
62 }
63
64 CFFL_FormFiller::OnChar(pAnnot, nChar, nFlags);
65
66 CPWL_CheckBox* pWnd = GetCheckBox(pPageView, true);
67 if (pWnd) {
68 CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot);
69 pWnd->SetCheck(!pWidget->IsChecked());
70 }
71
72 return CommitData(pPageView, nFlags);
73 }
74 default:
75 return CFFL_FormFiller::OnChar(pAnnot, nChar, nFlags);
76 }
77 }
78
OnLButtonUp(CPDFSDK_PageView * pPageView,CPDFSDK_Annot * pAnnot,uint32_t nFlags,const CFX_PointF & point)79 bool CFFL_CheckBox::OnLButtonUp(CPDFSDK_PageView* pPageView,
80 CPDFSDK_Annot* pAnnot,
81 uint32_t nFlags,
82 const CFX_PointF& point) {
83 CFFL_Button::OnLButtonUp(pPageView, pAnnot, nFlags, point);
84
85 if (!IsValid())
86 return true;
87
88 CPWL_CheckBox* pWnd = GetCheckBox(pPageView, true);
89 if (pWnd) {
90 CPDFSDK_Widget* pWidget = ToCPDFSDKWidget(pAnnot);
91 pWnd->SetCheck(!pWidget->IsChecked());
92 }
93
94 return CommitData(pPageView, nFlags);
95 }
96
IsDataChanged(CPDFSDK_PageView * pPageView)97 bool CFFL_CheckBox::IsDataChanged(CPDFSDK_PageView* pPageView) {
98 CPWL_CheckBox* pWnd = GetCheckBox(pPageView, false);
99 return pWnd && pWnd->IsChecked() != m_pWidget->IsChecked();
100 }
101
SaveData(CPDFSDK_PageView * pPageView)102 void CFFL_CheckBox::SaveData(CPDFSDK_PageView* pPageView) {
103 CPWL_CheckBox* pWnd = GetCheckBox(pPageView, false);
104 if (!pWnd)
105 return;
106
107 bool bNewChecked = pWnd->IsChecked();
108 if (bNewChecked) {
109 CPDF_FormField* pField = m_pWidget->GetFormField();
110 for (int32_t i = 0, sz = pField->CountControls(); i < sz; i++) {
111 if (CPDF_FormControl* pCtrl = pField->GetControl(i)) {
112 if (pCtrl->IsChecked()) {
113 break;
114 }
115 }
116 }
117 }
118 ObservedPtr<CPDFSDK_Widget> observed_widget(m_pWidget.Get());
119 ObservedPtr<CFFL_CheckBox> observed_this(this);
120 m_pWidget->SetCheck(bNewChecked, NotificationOption::kDoNotNotify);
121 if (!observed_widget)
122 return;
123
124 m_pWidget->UpdateField();
125 if (!observed_widget || !observed_this)
126 return;
127
128 SetChangeMark();
129 }
130
GetCheckBox(CPDFSDK_PageView * pPageView,bool bNew)131 CPWL_CheckBox* CFFL_CheckBox::GetCheckBox(CPDFSDK_PageView* pPageView,
132 bool bNew) {
133 return static_cast<CPWL_CheckBox*>(GetPWLWindow(pPageView, bNew));
134 }
135