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_listbox.h"
8
9 #include "fpdfsdk/cpdfsdk_formfillenvironment.h"
10 #include "fpdfsdk/cpdfsdk_widget.h"
11 #include "fpdfsdk/formfiller/cba_fontmap.h"
12 #include "fpdfsdk/formfiller/cffl_formfiller.h"
13 #include "fpdfsdk/formfiller/cffl_interactiveformfiller.h"
14 #include "fpdfsdk/fsdk_common.h"
15 #include "fpdfsdk/pdfwindow/PWL_ListBox.h"
16 #include "third_party/base/ptr_util.h"
17
18 #define FFL_DEFAULTLISTBOXFONTSIZE 12.0f
19
CFFL_ListBox(CPDFSDK_FormFillEnvironment * pApp,CPDFSDK_Annot * pWidget)20 CFFL_ListBox::CFFL_ListBox(CPDFSDK_FormFillEnvironment* pApp,
21 CPDFSDK_Annot* pWidget)
22 : CFFL_FormFiller(pApp, pWidget) {}
23
~CFFL_ListBox()24 CFFL_ListBox::~CFFL_ListBox() {}
25
GetCreateParam()26 PWL_CREATEPARAM CFFL_ListBox::GetCreateParam() {
27 PWL_CREATEPARAM cp = CFFL_FormFiller::GetCreateParam();
28
29 uint32_t dwFieldFlag = m_pWidget->GetFieldFlags();
30
31 if (dwFieldFlag & FIELDFLAG_MULTISELECT) {
32 cp.dwFlags |= PLBS_MULTIPLESEL;
33 }
34
35 cp.dwFlags |= PWS_VSCROLL;
36
37 if (cp.dwFlags & PWS_AUTOFONTSIZE)
38 cp.fFontSize = FFL_DEFAULTLISTBOXFONTSIZE;
39
40 if (!m_pFontMap) {
41 m_pFontMap = pdfium::MakeUnique<CBA_FontMap>(
42 m_pWidget, m_pFormFillEnv->GetSysHandler());
43 }
44 cp.pFontMap = m_pFontMap.get();
45
46 return cp;
47 }
48
NewPDFWindow(const PWL_CREATEPARAM & cp,CPDFSDK_PageView * pPageView)49 CPWL_Wnd* CFFL_ListBox::NewPDFWindow(const PWL_CREATEPARAM& cp,
50 CPDFSDK_PageView* pPageView) {
51 CPWL_ListBox* pWnd = new CPWL_ListBox();
52 pWnd->AttachFFLData(this);
53 pWnd->Create(cp);
54 pWnd->SetFillerNotify(m_pFormFillEnv->GetInteractiveFormFiller());
55
56 for (int32_t i = 0, sz = m_pWidget->CountOptions(); i < sz; i++)
57 pWnd->AddString(m_pWidget->GetOptionLabel(i));
58
59 if (pWnd->HasFlag(PLBS_MULTIPLESEL)) {
60 m_OriginSelections.clear();
61
62 bool bSetCaret = false;
63 for (int32_t i = 0, sz = m_pWidget->CountOptions(); i < sz; i++) {
64 if (m_pWidget->IsOptionSelected(i)) {
65 if (!bSetCaret) {
66 pWnd->SetCaret(i);
67 bSetCaret = true;
68 }
69 pWnd->Select(i);
70 m_OriginSelections.insert(i);
71 }
72 }
73 } else {
74 for (int i = 0, sz = m_pWidget->CountOptions(); i < sz; i++) {
75 if (m_pWidget->IsOptionSelected(i)) {
76 pWnd->Select(i);
77 break;
78 }
79 }
80 }
81
82 pWnd->SetTopVisibleIndex(m_pWidget->GetTopVisibleIndex());
83
84 return pWnd;
85 }
86
OnChar(CPDFSDK_Annot * pAnnot,uint32_t nChar,uint32_t nFlags)87 bool CFFL_ListBox::OnChar(CPDFSDK_Annot* pAnnot,
88 uint32_t nChar,
89 uint32_t nFlags) {
90 return CFFL_FormFiller::OnChar(pAnnot, nChar, nFlags);
91 }
92
IsDataChanged(CPDFSDK_PageView * pPageView)93 bool CFFL_ListBox::IsDataChanged(CPDFSDK_PageView* pPageView) {
94 CPWL_ListBox* pListBox = (CPWL_ListBox*)GetPDFWindow(pPageView, false);
95 if (!pListBox)
96 return false;
97
98 if (m_pWidget->GetFieldFlags() & FIELDFLAG_MULTISELECT) {
99 size_t nSelCount = 0;
100 for (int32_t i = 0, sz = pListBox->GetCount(); i < sz; ++i) {
101 if (pListBox->IsItemSelected(i)) {
102 if (m_OriginSelections.count(i) == 0)
103 return true;
104
105 ++nSelCount;
106 }
107 }
108
109 return nSelCount != m_OriginSelections.size();
110 }
111 return pListBox->GetCurSel() != m_pWidget->GetSelectedIndex(0);
112 }
113
SaveData(CPDFSDK_PageView * pPageView)114 void CFFL_ListBox::SaveData(CPDFSDK_PageView* pPageView) {
115 CPWL_ListBox* pListBox =
116 static_cast<CPWL_ListBox*>(GetPDFWindow(pPageView, false));
117 if (!pListBox)
118 return;
119
120 int32_t nNewTopIndex = pListBox->GetTopVisibleIndex();
121 m_pWidget->ClearSelection(false);
122 if (m_pWidget->GetFieldFlags() & FIELDFLAG_MULTISELECT) {
123 for (int32_t i = 0, sz = pListBox->GetCount(); i < sz; i++) {
124 if (pListBox->IsItemSelected(i))
125 m_pWidget->SetOptionSelection(i, true, false);
126 }
127 } else {
128 m_pWidget->SetOptionSelection(pListBox->GetCurSel(), true, false);
129 }
130 m_pWidget->SetTopVisibleIndex(nNewTopIndex);
131 m_pWidget->ResetFieldAppearance(true);
132 m_pWidget->UpdateField();
133 SetChangeMark();
134 }
135
GetActionData(CPDFSDK_PageView * pPageView,CPDF_AAction::AActionType type,PDFSDK_FieldAction & fa)136 void CFFL_ListBox::GetActionData(CPDFSDK_PageView* pPageView,
137 CPDF_AAction::AActionType type,
138 PDFSDK_FieldAction& fa) {
139 switch (type) {
140 case CPDF_AAction::Validate:
141 if (m_pWidget->GetFieldFlags() & FIELDFLAG_MULTISELECT) {
142 fa.sValue = L"";
143 } else {
144 if (CPWL_ListBox* pListBox =
145 (CPWL_ListBox*)GetPDFWindow(pPageView, false)) {
146 int32_t nCurSel = pListBox->GetCurSel();
147 if (nCurSel >= 0)
148 fa.sValue = m_pWidget->GetOptionLabel(nCurSel);
149 }
150 }
151 break;
152 case CPDF_AAction::LoseFocus:
153 case CPDF_AAction::GetFocus:
154 if (m_pWidget->GetFieldFlags() & FIELDFLAG_MULTISELECT) {
155 fa.sValue = L"";
156 } else {
157 int32_t nCurSel = m_pWidget->GetSelectedIndex(0);
158 if (nCurSel >= 0)
159 fa.sValue = m_pWidget->GetOptionLabel(nCurSel);
160 }
161 break;
162 default:
163 break;
164 }
165 }
166
SaveState(CPDFSDK_PageView * pPageView)167 void CFFL_ListBox::SaveState(CPDFSDK_PageView* pPageView) {
168 ASSERT(pPageView);
169
170 CPWL_ListBox* pListBox =
171 static_cast<CPWL_ListBox*>(GetPDFWindow(pPageView, false));
172 if (!pListBox)
173 return;
174
175 for (int32_t i = 0, sz = pListBox->GetCount(); i < sz; i++) {
176 if (pListBox->IsItemSelected(i))
177 m_State.push_back(i);
178 }
179 }
180
RestoreState(CPDFSDK_PageView * pPageView)181 void CFFL_ListBox::RestoreState(CPDFSDK_PageView* pPageView) {
182 CPWL_ListBox* pListBox =
183 static_cast<CPWL_ListBox*>(GetPDFWindow(pPageView, false));
184 if (!pListBox)
185 return;
186
187 for (const auto& item : m_State)
188 pListBox->Select(item);
189 }
190
ResetPDFWindow(CPDFSDK_PageView * pPageView,bool bRestoreValue)191 CPWL_Wnd* CFFL_ListBox::ResetPDFWindow(CPDFSDK_PageView* pPageView,
192 bool bRestoreValue) {
193 if (bRestoreValue)
194 SaveState(pPageView);
195
196 DestroyPDFWindow(pPageView);
197
198 CPWL_Wnd* pRet = nullptr;
199
200 if (bRestoreValue) {
201 RestoreState(pPageView);
202 pRet = GetPDFWindow(pPageView, false);
203 } else {
204 pRet = GetPDFWindow(pPageView, true);
205 }
206
207 m_pWidget->UpdateField();
208
209 return pRet;
210 }
211