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/include/formfiller/FFL_ComboBox.h"
8
9 #include "fpdfsdk/include/formfiller/FFL_CBA_Fontmap.h"
10 #include "fpdfsdk/include/formfiller/FFL_FormFiller.h"
11 #include "fpdfsdk/include/formfiller/FFL_IFormFiller.h"
12 #include "fpdfsdk/include/fsdk_common.h"
13 #include "fpdfsdk/include/fsdk_mgr.h"
14 #include "fpdfsdk/include/pdfwindow/PWL_ComboBox.h"
15
CFFL_ComboBox(CPDFDoc_Environment * pApp,CPDFSDK_Annot * pAnnot)16 CFFL_ComboBox::CFFL_ComboBox(CPDFDoc_Environment* pApp, CPDFSDK_Annot* pAnnot)
17 : CFFL_FormFiller(pApp, pAnnot), m_pFontMap(NULL) {
18 m_State.nIndex = 0;
19 m_State.nStart = 0;
20 m_State.nEnd = 0;
21 }
22
~CFFL_ComboBox()23 CFFL_ComboBox::~CFFL_ComboBox() {
24 for (const auto& it : m_Maps)
25 it.second->InvalidateFocusHandler(this);
26 delete m_pFontMap;
27 }
28
GetCreateParam()29 PWL_CREATEPARAM CFFL_ComboBox::GetCreateParam() {
30 PWL_CREATEPARAM cp = CFFL_FormFiller::GetCreateParam();
31
32 int nFlags = m_pWidget->GetFieldFlags();
33 if (nFlags & FIELDFLAG_EDIT) {
34 cp.dwFlags |= PCBS_ALLOWCUSTOMTEXT;
35 }
36
37 if (!m_pFontMap)
38 m_pFontMap = new CBA_FontMap(m_pWidget, GetSystemHandler());
39 cp.pFontMap = m_pFontMap;
40 cp.pFocusHandler = this;
41
42 return cp;
43 }
44
NewPDFWindow(const PWL_CREATEPARAM & cp,CPDFSDK_PageView * pPageView)45 CPWL_Wnd* CFFL_ComboBox::NewPDFWindow(const PWL_CREATEPARAM& cp,
46 CPDFSDK_PageView* pPageView) {
47 CPWL_ComboBox* pWnd = new CPWL_ComboBox();
48 pWnd->AttachFFLData(this);
49 pWnd->Create(cp);
50
51 CFFL_IFormFiller* pFormFiller = m_pApp->GetIFormFiller();
52 pWnd->SetFillerNotify(pFormFiller);
53
54 int32_t nCurSel = m_pWidget->GetSelectedIndex(0);
55 CFX_WideString swText;
56 if (nCurSel < 0)
57 swText = m_pWidget->GetValue();
58 else
59 swText = m_pWidget->GetOptionLabel(nCurSel);
60
61 for (int32_t i = 0, sz = m_pWidget->CountOptions(); i < sz; i++) {
62 pWnd->AddString(m_pWidget->GetOptionLabel(i).c_str());
63 }
64
65 pWnd->SetSelect(nCurSel);
66 pWnd->SetText(swText.c_str());
67 return pWnd;
68 }
69
OnChar(CPDFSDK_Annot * pAnnot,FX_UINT nChar,FX_UINT nFlags)70 FX_BOOL CFFL_ComboBox::OnChar(CPDFSDK_Annot* pAnnot,
71 FX_UINT nChar,
72 FX_UINT nFlags) {
73 return CFFL_FormFiller::OnChar(pAnnot, nChar, nFlags);
74 }
75
IsDataChanged(CPDFSDK_PageView * pPageView)76 FX_BOOL CFFL_ComboBox::IsDataChanged(CPDFSDK_PageView* pPageView) {
77 CPWL_ComboBox* pWnd = (CPWL_ComboBox*)GetPDFWindow(pPageView, FALSE);
78 if (!pWnd)
79 return FALSE;
80
81 int32_t nCurSel = pWnd->GetSelect();
82 if (!(m_pWidget->GetFieldFlags() & FIELDFLAG_EDIT))
83 return nCurSel != m_pWidget->GetSelectedIndex(0);
84
85 if (nCurSel >= 0)
86 return nCurSel != m_pWidget->GetSelectedIndex(0);
87
88 return pWnd->GetText() != m_pWidget->GetValue();
89 }
90
SaveData(CPDFSDK_PageView * pPageView)91 void CFFL_ComboBox::SaveData(CPDFSDK_PageView* pPageView) {
92 CPWL_ComboBox* pWnd =
93 static_cast<CPWL_ComboBox*>(GetPDFWindow(pPageView, FALSE));
94 if (!pWnd)
95 return;
96
97 CFX_WideString swText = pWnd->GetText();
98 int32_t nCurSel = pWnd->GetSelect();
99
100 bool bSetValue = false;
101
102 if (m_pWidget->GetFieldFlags() & FIELDFLAG_EDIT)
103 bSetValue = (nCurSel < 0) || (swText != m_pWidget->GetOptionLabel(nCurSel));
104
105 if (bSetValue) {
106 m_pWidget->SetValue(swText, FALSE);
107 } else {
108 m_pWidget->GetSelectedIndex(0);
109 m_pWidget->SetOptionSelection(nCurSel, TRUE, FALSE);
110 }
111
112 m_pWidget->ResetFieldAppearance(TRUE);
113 m_pWidget->UpdateField();
114 SetChangeMark();
115
116 m_pWidget->GetPDFPage();
117 }
118
GetActionData(CPDFSDK_PageView * pPageView,CPDF_AAction::AActionType type,PDFSDK_FieldAction & fa)119 void CFFL_ComboBox::GetActionData(CPDFSDK_PageView* pPageView,
120 CPDF_AAction::AActionType type,
121 PDFSDK_FieldAction& fa) {
122 switch (type) {
123 case CPDF_AAction::KeyStroke:
124 if (CPWL_ComboBox* pComboBox =
125 static_cast<CPWL_ComboBox*>(GetPDFWindow(pPageView, FALSE))) {
126 if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
127 fa.bFieldFull = pEdit->IsTextFull();
128 int nSelStart = 0;
129 int nSelEnd = 0;
130 pEdit->GetSel(nSelStart, nSelEnd);
131 fa.nSelEnd = nSelEnd;
132 fa.nSelStart = nSelStart;
133 fa.sValue = pEdit->GetText();
134 fa.sChangeEx = GetSelectExportText();
135
136 if (fa.bFieldFull) {
137 fa.sChange = L"";
138 fa.sChangeEx = L"";
139 }
140 }
141 }
142 break;
143 case CPDF_AAction::Validate:
144 if (CPWL_ComboBox* pComboBox =
145 static_cast<CPWL_ComboBox*>(GetPDFWindow(pPageView, FALSE))) {
146 if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
147 fa.sValue = pEdit->GetText();
148 }
149 }
150 break;
151 case CPDF_AAction::LoseFocus:
152 case CPDF_AAction::GetFocus:
153 fa.sValue = m_pWidget->GetValue();
154 break;
155 default:
156 break;
157 }
158 }
159
SetActionData(CPDFSDK_PageView * pPageView,CPDF_AAction::AActionType type,const PDFSDK_FieldAction & fa)160 void CFFL_ComboBox::SetActionData(CPDFSDK_PageView* pPageView,
161 CPDF_AAction::AActionType type,
162 const PDFSDK_FieldAction& fa) {
163 switch (type) {
164 case CPDF_AAction::KeyStroke:
165 if (CPWL_ComboBox* pComboBox =
166 static_cast<CPWL_ComboBox*>(GetPDFWindow(pPageView, FALSE))) {
167 if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
168 pEdit->SetSel(fa.nSelStart, fa.nSelEnd);
169 pEdit->ReplaceSel(fa.sChange.c_str());
170 }
171 }
172 break;
173 default:
174 break;
175 }
176 }
177
IsActionDataChanged(CPDF_AAction::AActionType type,const PDFSDK_FieldAction & faOld,const PDFSDK_FieldAction & faNew)178 FX_BOOL CFFL_ComboBox::IsActionDataChanged(CPDF_AAction::AActionType type,
179 const PDFSDK_FieldAction& faOld,
180 const PDFSDK_FieldAction& faNew) {
181 switch (type) {
182 case CPDF_AAction::KeyStroke:
183 return (!faOld.bFieldFull && faOld.nSelEnd != faNew.nSelEnd) ||
184 faOld.nSelStart != faNew.nSelStart ||
185 faOld.sChange != faNew.sChange;
186 default:
187 break;
188 }
189
190 return FALSE;
191 }
192
SaveState(CPDFSDK_PageView * pPageView)193 void CFFL_ComboBox::SaveState(CPDFSDK_PageView* pPageView) {
194 ASSERT(pPageView);
195
196 if (CPWL_ComboBox* pComboBox =
197 static_cast<CPWL_ComboBox*>(GetPDFWindow(pPageView, FALSE))) {
198 m_State.nIndex = pComboBox->GetSelect();
199
200 if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
201 pEdit->GetSel(m_State.nStart, m_State.nEnd);
202 m_State.sValue = pEdit->GetText();
203 }
204 }
205 }
206
RestoreState(CPDFSDK_PageView * pPageView)207 void CFFL_ComboBox::RestoreState(CPDFSDK_PageView* pPageView) {
208 ASSERT(pPageView);
209
210 if (CPWL_ComboBox* pComboBox =
211 static_cast<CPWL_ComboBox*>(GetPDFWindow(pPageView, TRUE))) {
212 if (m_State.nIndex >= 0) {
213 pComboBox->SetSelect(m_State.nIndex);
214 } else {
215 if (CPWL_Edit* pEdit = pComboBox->GetEdit()) {
216 pEdit->SetText(m_State.sValue.c_str());
217 pEdit->SetSel(m_State.nStart, m_State.nEnd);
218 }
219 }
220 }
221 }
222
ResetPDFWindow(CPDFSDK_PageView * pPageView,FX_BOOL bRestoreValue)223 CPWL_Wnd* CFFL_ComboBox::ResetPDFWindow(CPDFSDK_PageView* pPageView,
224 FX_BOOL bRestoreValue) {
225 if (bRestoreValue)
226 SaveState(pPageView);
227
228 DestroyPDFWindow(pPageView);
229
230 CPWL_Wnd* pRet = NULL;
231
232 if (bRestoreValue) {
233 RestoreState(pPageView);
234 pRet = GetPDFWindow(pPageView, FALSE);
235 } else {
236 pRet = GetPDFWindow(pPageView, TRUE);
237 }
238
239 m_pWidget->UpdateField();
240
241 return pRet;
242 }
243
244 #ifdef PDF_ENABLE_XFA
IsFieldFull(CPDFSDK_PageView * pPageView)245 FX_BOOL CFFL_ComboBox::IsFieldFull(CPDFSDK_PageView* pPageView) {
246 if (CPWL_ComboBox* pComboBox =
247 static_cast<CPWL_ComboBox*>(GetPDFWindow(pPageView, FALSE))) {
248 if (CPWL_Edit* pEdit = pComboBox->GetEdit())
249 return pEdit->IsTextFull();
250 }
251 return FALSE;
252 }
253 #endif // PDF_ENABLE_XFA
254
OnSetFocus(CPWL_Wnd * pWnd)255 void CFFL_ComboBox::OnSetFocus(CPWL_Wnd* pWnd) {
256 ASSERT(m_pApp);
257
258 if (pWnd->GetClassName() == PWL_CLASSNAME_EDIT) {
259 CPWL_Edit* pEdit = (CPWL_Edit*)pWnd;
260 pEdit->SetCharSet(134);
261 pEdit->SetCodePage(936);
262
263 pEdit->SetReadyToInput();
264 CFX_WideString wsText = pEdit->GetText();
265 int nCharacters = wsText.GetLength();
266 CFX_ByteString bsUTFText = wsText.UTF16LE_Encode();
267 unsigned short* pBuffer = (unsigned short*)bsUTFText.c_str();
268 m_pApp->FFI_OnSetFieldInputFocus(m_pWidget->GetFormField(), pBuffer,
269 nCharacters, TRUE);
270
271 pEdit->SetEditNotify(this);
272 }
273 }
274
OnKillFocus(CPWL_Wnd * pWnd)275 void CFFL_ComboBox::OnKillFocus(CPWL_Wnd* pWnd) {
276 ASSERT(m_pApp);
277 }
278
OnAddUndo(CPWL_Edit * pEdit)279 void CFFL_ComboBox::OnAddUndo(CPWL_Edit* pEdit) {
280 ASSERT(pEdit);
281 }
282
GetSelectExportText()283 CFX_WideString CFFL_ComboBox::GetSelectExportText() {
284 CFX_WideString swRet;
285
286 int nExport = -1;
287 CPDFSDK_PageView* pPageView = GetCurPageView();
288 if (CPWL_ComboBox* pComboBox =
289 (CPWL_ComboBox*)GetPDFWindow(pPageView, FALSE)) {
290 nExport = pComboBox->GetSelect();
291 }
292
293 if (nExport >= 0) {
294 if (CPDF_FormField* pFormField = m_pWidget->GetFormField()) {
295 swRet = pFormField->GetOptionValue(nExport);
296 if (swRet.IsEmpty())
297 swRet = pFormField->GetOptionLabel(nExport);
298 }
299 }
300
301 return swRet;
302 }
303