1 // Copyright 2014 The PDFium Authors
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_combobox.h"
8
9 #include <utility>
10
11 #include "constants/form_flags.h"
12 #include "core/fpdfdoc/cpdf_bafontmap.h"
13 #include "fpdfsdk/cpdfsdk_widget.h"
14 #include "fpdfsdk/formfiller/cffl_interactiveformfiller.h"
15 #include "fpdfsdk/formfiller/cffl_perwindowdata.h"
16 #include "fpdfsdk/pwl/cpwl_combo_box.h"
17 #include "fpdfsdk/pwl/cpwl_edit.h"
18
CFFL_ComboBox(CFFL_InteractiveFormFiller * pFormFiller,CPDFSDK_Widget * pWidget)19 CFFL_ComboBox::CFFL_ComboBox(CFFL_InteractiveFormFiller* pFormFiller,
20 CPDFSDK_Widget* pWidget)
21 : CFFL_TextObject(pFormFiller, pWidget) {}
22
~CFFL_ComboBox()23 CFFL_ComboBox::~CFFL_ComboBox() {
24 // See comment in cffl_formfiller.h.
25 // The font map should be stored somewhere more appropriate so it will live
26 // until the PWL_Edit is done with it. pdfium:566
27 DestroyWindows();
28 }
29
GetCreateParam()30 CPWL_Wnd::CreateParams CFFL_ComboBox::GetCreateParam() {
31 CPWL_Wnd::CreateParams cp = CFFL_TextObject::GetCreateParam();
32 if (m_pWidget->GetFieldFlags() & pdfium::form_flags::kChoiceEdit)
33 cp.dwFlags |= PCBS_ALLOWCUSTOMTEXT;
34
35 cp.pFontMap = GetOrCreateFontMap();
36 return cp;
37 }
38
NewPWLWindow(const CPWL_Wnd::CreateParams & cp,std::unique_ptr<IPWL_FillerNotify::PerWindowData> pAttachedData)39 std::unique_ptr<CPWL_Wnd> CFFL_ComboBox::NewPWLWindow(
40 const CPWL_Wnd::CreateParams& cp,
41 std::unique_ptr<IPWL_FillerNotify::PerWindowData> pAttachedData) {
42 static_cast<CFFL_PerWindowData*>(pAttachedData.get())->SetFormField(this);
43 auto pWnd = std::make_unique<CPWL_ComboBox>(cp, std::move(pAttachedData));
44 pWnd->Realize();
45
46 int32_t nCurSel = m_pWidget->GetSelectedIndex(0);
47 WideString swText;
48 if (nCurSel < 0)
49 swText = m_pWidget->GetValue();
50 else
51 swText = m_pWidget->GetOptionLabel(nCurSel);
52
53 for (int32_t i = 0, sz = m_pWidget->CountOptions(); i < sz; i++)
54 pWnd->AddString(m_pWidget->GetOptionLabel(i));
55
56 pWnd->SetSelect(nCurSel);
57 pWnd->SetText(swText);
58 return std::move(pWnd);
59 }
60
OnChar(CPDFSDK_Widget * pWidget,uint32_t nChar,Mask<FWL_EVENTFLAG> nFlags)61 bool CFFL_ComboBox::OnChar(CPDFSDK_Widget* pWidget,
62 uint32_t nChar,
63 Mask<FWL_EVENTFLAG> nFlags) {
64 return CFFL_TextObject::OnChar(pWidget, nChar, nFlags);
65 }
66
IsDataChanged(const CPDFSDK_PageView * pPageView)67 bool CFFL_ComboBox::IsDataChanged(const CPDFSDK_PageView* pPageView) {
68 auto* pWnd = GetPWLComboBox(pPageView);
69 if (!pWnd)
70 return false;
71
72 int32_t nCurSel = pWnd->GetSelect();
73 if (!(m_pWidget->GetFieldFlags() & pdfium::form_flags::kChoiceEdit))
74 return nCurSel != m_pWidget->GetSelectedIndex(0);
75
76 if (nCurSel >= 0)
77 return nCurSel != m_pWidget->GetSelectedIndex(0);
78
79 return pWnd->GetText() != m_pWidget->GetValue();
80 }
81
SaveData(const CPDFSDK_PageView * pPageView)82 void CFFL_ComboBox::SaveData(const CPDFSDK_PageView* pPageView) {
83 CPWL_ComboBox* pWnd = GetPWLComboBox(pPageView);
84 if (!pWnd)
85 return;
86
87 WideString swText = pWnd->GetText();
88 int32_t nCurSel = pWnd->GetSelect();
89 bool bSetValue = false;
90 if (m_pWidget->GetFieldFlags() & pdfium::form_flags::kChoiceEdit)
91 bSetValue = (nCurSel < 0) || (swText != m_pWidget->GetOptionLabel(nCurSel));
92
93 if (bSetValue) {
94 m_pWidget->SetValue(swText);
95 } else {
96 m_pWidget->GetSelectedIndex(0);
97 m_pWidget->SetOptionSelection(nCurSel);
98 }
99 ObservedPtr<CPDFSDK_Widget> observed_widget(m_pWidget);
100 ObservedPtr<CFFL_ComboBox> observed_this(this);
101 m_pWidget->ResetFieldAppearance();
102 if (!observed_widget)
103 return;
104
105 m_pWidget->UpdateField();
106 if (!observed_widget || !observed_this)
107 return;
108
109 SetChangeMark();
110 }
111
GetActionData(const CPDFSDK_PageView * pPageView,CPDF_AAction::AActionType type,CFFL_FieldAction & fa)112 void CFFL_ComboBox::GetActionData(const CPDFSDK_PageView* pPageView,
113 CPDF_AAction::AActionType type,
114 CFFL_FieldAction& fa) {
115 switch (type) {
116 case CPDF_AAction::kKeyStroke:
117 if (CPWL_ComboBox* pComboBox = GetPWLComboBox(pPageView)) {
118 if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
119 fa.bFieldFull = pEdit->IsTextFull();
120 std::tie(fa.nSelStart, fa.nSelEnd) = pEdit->GetSelection();
121 fa.sValue = pEdit->GetText();
122 fa.sChangeEx = GetSelectExportText();
123
124 if (fa.bFieldFull) {
125 fa.sChange.clear();
126 fa.sChangeEx.clear();
127 }
128 }
129 }
130 break;
131 case CPDF_AAction::kValidate:
132 if (CPWL_ComboBox* pComboBox = GetPWLComboBox(pPageView)) {
133 if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
134 fa.sValue = pEdit->GetText();
135 }
136 }
137 break;
138 case CPDF_AAction::kLoseFocus:
139 case CPDF_AAction::kGetFocus:
140 fa.sValue = m_pWidget->GetValue();
141 break;
142 default:
143 break;
144 }
145 }
146
SetActionData(const CPDFSDK_PageView * pPageView,CPDF_AAction::AActionType type,const CFFL_FieldAction & fa)147 void CFFL_ComboBox::SetActionData(const CPDFSDK_PageView* pPageView,
148 CPDF_AAction::AActionType type,
149 const CFFL_FieldAction& fa) {
150 switch (type) {
151 case CPDF_AAction::kKeyStroke:
152 if (CPWL_ComboBox* pComboBox = GetPWLComboBox(pPageView)) {
153 if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
154 pEdit->SetSelection(fa.nSelStart, fa.nSelEnd);
155 pEdit->ReplaceSelection(fa.sChange);
156 }
157 }
158 break;
159 default:
160 break;
161 }
162 }
163
SavePWLWindowState(const CPDFSDK_PageView * pPageView)164 void CFFL_ComboBox::SavePWLWindowState(const CPDFSDK_PageView* pPageView) {
165 CPWL_ComboBox* pComboBox = GetPWLComboBox(pPageView);
166 if (!pComboBox)
167 return;
168
169 m_State.nIndex = pComboBox->GetSelect();
170
171 CPWL_Edit* pEdit = pComboBox->GetEdit();
172 if (!pEdit)
173 return;
174
175 std::tie(m_State.nStart, m_State.nEnd) = pEdit->GetSelection();
176 m_State.sValue = pEdit->GetText();
177 }
178
RecreatePWLWindowFromSavedState(const CPDFSDK_PageView * pPageView)179 void CFFL_ComboBox::RecreatePWLWindowFromSavedState(
180 const CPDFSDK_PageView* pPageView) {
181 CPWL_ComboBox* pComboBox = CreateOrUpdatePWLComboBox(pPageView);
182 if (!pComboBox)
183 return;
184
185 if (m_State.nIndex >= 0) {
186 pComboBox->SetSelect(m_State.nIndex);
187 return;
188 }
189
190 CPWL_Edit* pEdit = pComboBox->GetEdit();
191 if (!pEdit)
192 return;
193
194 pEdit->SetText(m_State.sValue);
195 pEdit->SetSelection(m_State.nStart, m_State.nEnd);
196 }
197
SetIndexSelected(int index,bool selected)198 bool CFFL_ComboBox::SetIndexSelected(int index, bool selected) {
199 if (!IsValid() || !selected)
200 return false;
201
202 if (index < 0 || index >= m_pWidget->CountOptions())
203 return false;
204
205 CPWL_ComboBox* pWnd = GetPWLComboBox(GetCurPageView());
206 if (!pWnd)
207 return false;
208
209 pWnd->SetSelect(index);
210 return true;
211 }
212
IsIndexSelected(int index)213 bool CFFL_ComboBox::IsIndexSelected(int index) {
214 if (!IsValid())
215 return false;
216
217 if (index < 0 || index >= m_pWidget->CountOptions())
218 return false;
219
220 CPWL_ComboBox* pWnd = GetPWLComboBox(GetCurPageView());
221 return pWnd && index == pWnd->GetSelect();
222 }
223
224 #ifdef PDF_ENABLE_XFA
IsFieldFull(const CPDFSDK_PageView * pPageView)225 bool CFFL_ComboBox::IsFieldFull(const CPDFSDK_PageView* pPageView) {
226 CPWL_ComboBox* pComboBox = GetPWLComboBox(pPageView);
227 if (!pComboBox)
228 return false;
229
230 CPWL_Edit* pEdit = pComboBox->GetEdit();
231 return pEdit && pEdit->IsTextFull();
232 }
233 #endif // PDF_ENABLE_XFA
234
OnSetFocusForEdit(CPWL_Edit * pEdit)235 void CFFL_ComboBox::OnSetFocusForEdit(CPWL_Edit* pEdit) {
236 pEdit->SetCharSet(FX_Charset::kChineseSimplified);
237 pEdit->SetReadyToInput();
238 m_pFormFiller->OnSetFieldInputFocus(pEdit->GetText());
239 }
240
GetSelectExportText()241 WideString CFFL_ComboBox::GetSelectExportText() {
242 CPWL_ComboBox* pComboBox = GetPWLComboBox(GetCurPageView());
243 int nExport = pComboBox ? pComboBox->GetSelect() : -1;
244 return m_pWidget->GetSelectExportText(nExport);
245 }
246
GetPWLComboBox(const CPDFSDK_PageView * pPageView) const247 CPWL_ComboBox* CFFL_ComboBox::GetPWLComboBox(
248 const CPDFSDK_PageView* pPageView) const {
249 return static_cast<CPWL_ComboBox*>(GetPWLWindow(pPageView));
250 }
251
CreateOrUpdatePWLComboBox(const CPDFSDK_PageView * pPageView)252 CPWL_ComboBox* CFFL_ComboBox::CreateOrUpdatePWLComboBox(
253 const CPDFSDK_PageView* pPageView) {
254 return static_cast<CPWL_ComboBox*>(CreateOrUpdatePWLWindow(pPageView));
255 }
256