FFL_TextField.cpp revision ac3d58cff7c80b0ef56bf55130d91da17cbaa3c4 
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_TextField.h"
8
9#include "fpdfsdk/include/formfiller/FFL_CBA_Fontmap.h"
10#include "fpdfsdk/include/fsdk_common.h"
11#include "fpdfsdk/include/fsdk_mgr.h"
12
13CFFL_TextField::CFFL_TextField(CPDFDoc_Environment* pApp, CPDFSDK_Annot* pAnnot)
14    : CFFL_FormFiller(pApp, pAnnot), m_pFontMap(NULL) {
15  m_State.nStart = m_State.nEnd = 0;
16}
17
18CFFL_TextField::~CFFL_TextField() {
19  for (const auto& it : m_Maps)
20    it.second->InvalidateFocusHandler(this);
21  delete m_pFontMap;
22}
23
24PWL_CREATEPARAM CFFL_TextField::GetCreateParam() {
25  PWL_CREATEPARAM cp = CFFL_FormFiller::GetCreateParam();
26
27  int nFlags = m_pWidget->GetFieldFlags();
28
29  if (nFlags & FIELDFLAG_PASSWORD) {
30    cp.dwFlags |= PES_PASSWORD;
31  }
32
33  if (!(nFlags & FIELDFLAG_DONOTSPELLCHECK)) {
34  }
35
36  if (nFlags & FIELDFLAG_MULTILINE) {
37    cp.dwFlags |= PES_MULTILINE | PES_AUTORETURN | PES_TOP;
38
39    if (!(nFlags & FIELDFLAG_DONOTSCROLL)) {
40      cp.dwFlags |= PWS_VSCROLL | PES_AUTOSCROLL;
41    }
42  } else {
43    cp.dwFlags |= PES_CENTER;
44
45    if (!(nFlags & FIELDFLAG_DONOTSCROLL)) {
46      cp.dwFlags |= PES_AUTOSCROLL;
47    }
48  }
49
50  if (nFlags & FIELDFLAG_COMB) {
51    cp.dwFlags |= PES_CHARARRAY;
52  }
53
54  if (nFlags & FIELDFLAG_RICHTEXT) {
55    cp.dwFlags |= PES_RICH;
56  }
57
58  cp.dwFlags |= PES_UNDO;
59
60  switch (m_pWidget->GetAlignment()) {
61    default:
62    case BF_ALIGN_LEFT:
63      cp.dwFlags |= PES_LEFT;
64      break;
65    case BF_ALIGN_MIDDLE:
66      cp.dwFlags |= PES_MIDDLE;
67      break;
68    case BF_ALIGN_RIGHT:
69      cp.dwFlags |= PES_RIGHT;
70      break;
71  }
72
73  if (!m_pFontMap)
74    m_pFontMap = new CBA_FontMap(m_pWidget, m_pApp->GetSysHandler());
75  cp.pFontMap = m_pFontMap;
76  cp.pFocusHandler = this;
77
78  return cp;
79}
80
81CPWL_Wnd* CFFL_TextField::NewPDFWindow(const PWL_CREATEPARAM& cp,
82                                       CPDFSDK_PageView* pPageView) {
83  CPWL_Edit* pWnd = new CPWL_Edit();
84  pWnd->AttachFFLData(this);
85  pWnd->Create(cp);
86
87  CFFL_IFormFiller* pIFormFiller = m_pApp->GetIFormFiller();
88  pWnd->SetFillerNotify(pIFormFiller);
89
90  int32_t nMaxLen = m_pWidget->GetMaxLen();
91  CFX_WideString swValue = m_pWidget->GetValue();
92
93  if (nMaxLen > 0) {
94    if (pWnd->HasFlag(PES_CHARARRAY)) {
95      pWnd->SetCharArray(nMaxLen);
96      pWnd->SetAlignFormatV(PEAV_CENTER);
97    } else {
98      pWnd->SetLimitChar(nMaxLen);
99    }
100  }
101
102  pWnd->SetText(swValue.c_str());
103  return pWnd;
104}
105
106FX_BOOL CFFL_TextField::OnChar(CPDFSDK_Annot* pAnnot,
107                               FX_UINT nChar,
108                               FX_UINT nFlags) {
109  switch (nChar) {
110    case FWL_VKEY_Return:
111      if (!(m_pWidget->GetFieldFlags() & FIELDFLAG_MULTILINE)) {
112        CPDFSDK_PageView* pPageView = GetCurPageView();
113        ASSERT(pPageView);
114        m_bValid = !m_bValid;
115        CPDF_Rect rcAnnot = pAnnot->GetRect();
116        m_pApp->FFI_Invalidate(pAnnot->GetUnderlyingPage(), rcAnnot.left,
117                               rcAnnot.top, rcAnnot.right, rcAnnot.bottom);
118
119        if (m_bValid) {
120          if (CPWL_Wnd* pWnd = GetPDFWindow(pPageView, TRUE))
121            pWnd->SetFocus();
122        } else {
123          if (CommitData(pPageView, nFlags)) {
124            DestroyPDFWindow(pPageView);
125            return TRUE;
126          }
127          return FALSE;
128        }
129      }
130      break;
131    case FWL_VKEY_Escape: {
132      CPDFSDK_PageView* pPageView = GetCurPageView();
133      ASSERT(pPageView);
134      EscapeFiller(pPageView, TRUE);
135      return TRUE;
136    }
137  }
138
139  return CFFL_FormFiller::OnChar(pAnnot, nChar, nFlags);
140}
141
142FX_BOOL CFFL_TextField::IsDataChanged(CPDFSDK_PageView* pPageView) {
143  if (CPWL_Edit* pEdit = (CPWL_Edit*)GetPDFWindow(pPageView, FALSE))
144    return pEdit->GetText() != m_pWidget->GetValue();
145
146  return FALSE;
147}
148
149void CFFL_TextField::SaveData(CPDFSDK_PageView* pPageView) {
150  if (CPWL_Edit* pWnd = (CPWL_Edit*)GetPDFWindow(pPageView, FALSE)) {
151    CFX_WideString sOldValue = m_pWidget->GetValue();
152    CFX_WideString sNewValue = pWnd->GetText();
153
154    m_pWidget->SetValue(sNewValue, FALSE);
155    m_pWidget->ResetFieldAppearance(TRUE);
156    m_pWidget->UpdateField();
157    SetChangeMark();
158  }
159}
160
161void CFFL_TextField::GetActionData(CPDFSDK_PageView* pPageView,
162                                   CPDF_AAction::AActionType type,
163                                   PDFSDK_FieldAction& fa) {
164  switch (type) {
165    case CPDF_AAction::KeyStroke:
166      if (CPWL_Edit* pWnd = (CPWL_Edit*)GetPDFWindow(pPageView, FALSE)) {
167        fa.bFieldFull = pWnd->IsTextFull();
168
169        fa.sValue = pWnd->GetText();
170
171        if (fa.bFieldFull) {
172          fa.sChange = L"";
173          fa.sChangeEx = L"";
174        }
175      }
176      break;
177    case CPDF_AAction::Validate:
178      if (CPWL_Edit* pWnd = (CPWL_Edit*)GetPDFWindow(pPageView, FALSE)) {
179        fa.sValue = pWnd->GetText();
180      }
181      break;
182    case CPDF_AAction::LoseFocus:
183    case CPDF_AAction::GetFocus:
184      fa.sValue = m_pWidget->GetValue();
185      break;
186    default:
187      break;
188  }
189}
190
191void CFFL_TextField::SetActionData(CPDFSDK_PageView* pPageView,
192                                   CPDF_AAction::AActionType type,
193                                   const PDFSDK_FieldAction& fa) {
194  switch (type) {
195    case CPDF_AAction::KeyStroke:
196      if (CPWL_Edit* pEdit = (CPWL_Edit*)GetPDFWindow(pPageView, FALSE)) {
197        pEdit->SetFocus();
198        pEdit->SetSel(fa.nSelStart, fa.nSelEnd);
199        pEdit->ReplaceSel(fa.sChange.c_str());
200      }
201      break;
202    default:
203      break;
204  }
205}
206
207FX_BOOL CFFL_TextField::IsActionDataChanged(CPDF_AAction::AActionType type,
208                                            const PDFSDK_FieldAction& faOld,
209                                            const PDFSDK_FieldAction& faNew) {
210  switch (type) {
211    case CPDF_AAction::KeyStroke:
212      return (!faOld.bFieldFull && faOld.nSelEnd != faNew.nSelEnd) ||
213             faOld.nSelStart != faNew.nSelStart ||
214             faOld.sChange != faNew.sChange;
215    default:
216      break;
217  }
218
219  return FALSE;
220}
221
222void CFFL_TextField::SaveState(CPDFSDK_PageView* pPageView) {
223  ASSERT(pPageView);
224
225  if (CPWL_Edit* pWnd = (CPWL_Edit*)GetPDFWindow(pPageView, FALSE)) {
226    pWnd->GetSel(m_State.nStart, m_State.nEnd);
227    m_State.sValue = pWnd->GetText();
228  }
229}
230
231void CFFL_TextField::RestoreState(CPDFSDK_PageView* pPageView) {
232  ASSERT(pPageView);
233
234  if (CPWL_Edit* pWnd = (CPWL_Edit*)GetPDFWindow(pPageView, TRUE)) {
235    pWnd->SetText(m_State.sValue.c_str());
236    pWnd->SetSel(m_State.nStart, m_State.nEnd);
237  }
238}
239
240CPWL_Wnd* CFFL_TextField::ResetPDFWindow(CPDFSDK_PageView* pPageView,
241                                         FX_BOOL bRestoreValue) {
242  if (bRestoreValue)
243    SaveState(pPageView);
244
245  DestroyPDFWindow(pPageView);
246
247  CPWL_Wnd* pRet = NULL;
248
249  if (bRestoreValue) {
250    RestoreState(pPageView);
251    pRet = GetPDFWindow(pPageView, FALSE);
252  } else {
253    pRet = GetPDFWindow(pPageView, TRUE);
254  }
255
256  m_pWidget->UpdateField();
257
258  return pRet;
259}
260
261#ifdef PDF_ENABLE_XFA
262FX_BOOL CFFL_TextField::IsFieldFull(CPDFSDK_PageView* pPageView) {
263  if (CPWL_Edit* pWnd = (CPWL_Edit*)GetPDFWindow(pPageView, FALSE)) {
264    return pWnd->IsTextFull();
265  }
266
267  return FALSE;
268}
269#endif  // PDF_ENABLE_XFA
270
271void CFFL_TextField::OnSetFocus(CPWL_Wnd* pWnd) {
272  ASSERT(m_pApp);
273  if (pWnd->GetClassName() == PWL_CLASSNAME_EDIT) {
274    CPWL_Edit* pEdit = (CPWL_Edit*)pWnd;
275    pEdit->SetCharSet(134);
276    pEdit->SetCodePage(936);
277
278    pEdit->SetReadyToInput();
279    CFX_WideString wsText = pEdit->GetText();
280    int nCharacters = wsText.GetLength();
281    CFX_ByteString bsUTFText = wsText.UTF16LE_Encode();
282    unsigned short* pBuffer = (unsigned short*)bsUTFText.c_str();
283    m_pApp->FFI_OnSetFieldInputFocus(m_pWidget->GetFormField(), pBuffer,
284                                     nCharacters, TRUE);
285
286    pEdit->SetEditNotify(this);
287  }
288}
289
290void CFFL_TextField::OnKillFocus(CPWL_Wnd* pWnd) {}
291
292void CFFL_TextField::OnAddUndo(CPWL_Edit* pEdit) {}
293