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/pdfwindow/PWL_EditCtrl.h"
8
9 #include "core/fpdfdoc/cpvt_section.h"
10 #include "core/fpdfdoc/cpvt_word.h"
11 #include "core/fxge/fx_font.h"
12 #include "fpdfsdk/fxedit/fxet_edit.h"
13 #include "fpdfsdk/pdfwindow/PWL_Caret.h"
14 #include "fpdfsdk/pdfwindow/PWL_FontMap.h"
15 #include "fpdfsdk/pdfwindow/PWL_ScrollBar.h"
16 #include "fpdfsdk/pdfwindow/PWL_Utils.h"
17 #include "fpdfsdk/pdfwindow/PWL_Wnd.h"
18 #include "public/fpdf_fwlevent.h"
19
CPWL_EditCtrl()20 CPWL_EditCtrl::CPWL_EditCtrl()
21 : m_pEdit(new CFX_Edit),
22 m_pEditCaret(nullptr),
23 m_bMouseDown(false),
24 m_nCharSet(FXFONT_DEFAULT_CHARSET),
25 m_nCodePage(0) {}
26
~CPWL_EditCtrl()27 CPWL_EditCtrl::~CPWL_EditCtrl() {}
28
OnCreate(PWL_CREATEPARAM & cp)29 void CPWL_EditCtrl::OnCreate(PWL_CREATEPARAM& cp) {
30 cp.eCursorType = FXCT_VBEAM;
31 }
32
OnCreated()33 void CPWL_EditCtrl::OnCreated() {
34 SetFontSize(GetCreationParam().fFontSize);
35
36 m_pEdit->SetFontMap(GetFontMap());
37 m_pEdit->SetNotify(this);
38 m_pEdit->Initialize();
39 }
40
IsWndHorV()41 bool CPWL_EditCtrl::IsWndHorV() {
42 CFX_Matrix mt = GetWindowMatrix();
43 return mt.Transform(CFX_PointF(1, 1)).y == mt.Transform(CFX_PointF(0, 1)).y;
44 }
45
SetCursor()46 void CPWL_EditCtrl::SetCursor() {
47 if (IsValid()) {
48 if (CFX_SystemHandler* pSH = GetSystemHandler()) {
49 if (IsWndHorV())
50 pSH->SetCursor(FXCT_VBEAM);
51 else
52 pSH->SetCursor(FXCT_HBEAM);
53 }
54 }
55 }
56
RePosChildWnd()57 void CPWL_EditCtrl::RePosChildWnd() {
58 m_pEdit->SetPlateRect(GetClientRect());
59 }
60
OnNotify(CPWL_Wnd * pWnd,uint32_t msg,intptr_t wParam,intptr_t lParam)61 void CPWL_EditCtrl::OnNotify(CPWL_Wnd* pWnd,
62 uint32_t msg,
63 intptr_t wParam,
64 intptr_t lParam) {
65 CPWL_Wnd::OnNotify(pWnd, msg, wParam, lParam);
66
67 switch (msg) {
68 case PNM_SETSCROLLINFO:
69 switch (wParam) {
70 case SBT_VSCROLL:
71 if (CPWL_Wnd* pChild = GetVScrollBar()) {
72 pChild->OnNotify(pWnd, PNM_SETSCROLLINFO, wParam, lParam);
73 }
74 break;
75 }
76 break;
77 case PNM_SETSCROLLPOS:
78 switch (wParam) {
79 case SBT_VSCROLL:
80 if (CPWL_Wnd* pChild = GetVScrollBar()) {
81 pChild->OnNotify(pWnd, PNM_SETSCROLLPOS, wParam, lParam);
82 }
83 break;
84 }
85 break;
86 case PNM_SCROLLWINDOW: {
87 FX_FLOAT fPos = *(FX_FLOAT*)lParam;
88 switch (wParam) {
89 case SBT_VSCROLL:
90 m_pEdit->SetScrollPos(CFX_PointF(m_pEdit->GetScrollPos().x, fPos));
91 break;
92 }
93 } break;
94 case PNM_SETCARETINFO: {
95 if (PWL_CARET_INFO* pCaretInfo = (PWL_CARET_INFO*)wParam) {
96 SetCaret(pCaretInfo->bVisible, pCaretInfo->ptHead, pCaretInfo->ptFoot);
97 }
98 } break;
99 }
100 }
101
CreateChildWnd(const PWL_CREATEPARAM & cp)102 void CPWL_EditCtrl::CreateChildWnd(const PWL_CREATEPARAM& cp) {
103 if (!IsReadOnly())
104 CreateEditCaret(cp);
105 }
106
CreateEditCaret(const PWL_CREATEPARAM & cp)107 void CPWL_EditCtrl::CreateEditCaret(const PWL_CREATEPARAM& cp) {
108 if (m_pEditCaret)
109 return;
110
111 m_pEditCaret = new CPWL_Caret;
112 m_pEditCaret->SetInvalidRect(GetClientRect());
113
114 PWL_CREATEPARAM ecp = cp;
115 ecp.pParentWnd = this;
116 ecp.dwFlags = PWS_CHILD | PWS_NOREFRESHCLIP;
117 ecp.dwBorderWidth = 0;
118 ecp.nBorderStyle = BorderStyle::SOLID;
119 ecp.rcRectWnd = CFX_FloatRect(0, 0, 0, 0);
120
121 m_pEditCaret->Create(ecp);
122 }
123
SetFontSize(FX_FLOAT fFontSize)124 void CPWL_EditCtrl::SetFontSize(FX_FLOAT fFontSize) {
125 m_pEdit->SetFontSize(fFontSize);
126 }
127
GetFontSize() const128 FX_FLOAT CPWL_EditCtrl::GetFontSize() const {
129 return m_pEdit->GetFontSize();
130 }
131
OnKeyDown(uint16_t nChar,uint32_t nFlag)132 bool CPWL_EditCtrl::OnKeyDown(uint16_t nChar, uint32_t nFlag) {
133 if (m_bMouseDown)
134 return true;
135
136 bool bRet = CPWL_Wnd::OnKeyDown(nChar, nFlag);
137
138 // FILTER
139 switch (nChar) {
140 default:
141 return false;
142 case FWL_VKEY_Delete:
143 case FWL_VKEY_Up:
144 case FWL_VKEY_Down:
145 case FWL_VKEY_Left:
146 case FWL_VKEY_Right:
147 case FWL_VKEY_Home:
148 case FWL_VKEY_End:
149 case FWL_VKEY_Insert:
150 case 'C':
151 case 'V':
152 case 'X':
153 case 'A':
154 case 'Z':
155 case 'c':
156 case 'v':
157 case 'x':
158 case 'a':
159 case 'z':
160 break;
161 }
162
163 if (nChar == FWL_VKEY_Delete && m_pEdit->IsSelected())
164 nChar = FWL_VKEY_Unknown;
165
166 switch (nChar) {
167 case FWL_VKEY_Delete:
168 Delete();
169 return true;
170 case FWL_VKEY_Insert:
171 if (IsSHIFTpressed(nFlag))
172 PasteText();
173 return true;
174 case FWL_VKEY_Up:
175 m_pEdit->OnVK_UP(IsSHIFTpressed(nFlag), false);
176 return true;
177 case FWL_VKEY_Down:
178 m_pEdit->OnVK_DOWN(IsSHIFTpressed(nFlag), false);
179 return true;
180 case FWL_VKEY_Left:
181 m_pEdit->OnVK_LEFT(IsSHIFTpressed(nFlag), false);
182 return true;
183 case FWL_VKEY_Right:
184 m_pEdit->OnVK_RIGHT(IsSHIFTpressed(nFlag), false);
185 return true;
186 case FWL_VKEY_Home:
187 m_pEdit->OnVK_HOME(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
188 return true;
189 case FWL_VKEY_End:
190 m_pEdit->OnVK_END(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
191 return true;
192 case FWL_VKEY_Unknown:
193 if (!IsSHIFTpressed(nFlag))
194 Clear();
195 else
196 CutText();
197 return true;
198 default:
199 break;
200 }
201
202 return bRet;
203 }
204
OnChar(uint16_t nChar,uint32_t nFlag)205 bool CPWL_EditCtrl::OnChar(uint16_t nChar, uint32_t nFlag) {
206 if (m_bMouseDown)
207 return true;
208
209 CPWL_Wnd::OnChar(nChar, nFlag);
210
211 // FILTER
212 switch (nChar) {
213 case 0x0A:
214 case 0x1B:
215 return false;
216 default:
217 break;
218 }
219
220 bool bCtrl = IsCTRLpressed(nFlag);
221 bool bAlt = IsALTpressed(nFlag);
222 bool bShift = IsSHIFTpressed(nFlag);
223
224 uint16_t word = nChar;
225
226 if (bCtrl && !bAlt) {
227 switch (nChar) {
228 case 'C' - 'A' + 1:
229 CopyText();
230 return true;
231 case 'V' - 'A' + 1:
232 PasteText();
233 return true;
234 case 'X' - 'A' + 1:
235 CutText();
236 return true;
237 case 'A' - 'A' + 1:
238 SelectAll();
239 return true;
240 case 'Z' - 'A' + 1:
241 if (bShift)
242 Redo();
243 else
244 Undo();
245 return true;
246 default:
247 if (nChar < 32)
248 return false;
249 }
250 }
251
252 if (IsReadOnly())
253 return true;
254
255 if (m_pEdit->IsSelected() && word == FWL_VKEY_Back)
256 word = FWL_VKEY_Unknown;
257
258 Clear();
259
260 switch (word) {
261 case FWL_VKEY_Back:
262 Backspace();
263 break;
264 case FWL_VKEY_Return:
265 InsertReturn();
266 break;
267 case FWL_VKEY_Unknown:
268 break;
269 default:
270 InsertWord(word, GetCharSet());
271 break;
272 }
273
274 return true;
275 }
276
OnLButtonDown(const CFX_PointF & point,uint32_t nFlag)277 bool CPWL_EditCtrl::OnLButtonDown(const CFX_PointF& point, uint32_t nFlag) {
278 CPWL_Wnd::OnLButtonDown(point, nFlag);
279
280 if (ClientHitTest(point)) {
281 if (m_bMouseDown)
282 InvalidateRect();
283
284 m_bMouseDown = true;
285 SetCapture();
286
287 m_pEdit->OnMouseDown(point, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
288 }
289
290 return true;
291 }
292
OnLButtonUp(const CFX_PointF & point,uint32_t nFlag)293 bool CPWL_EditCtrl::OnLButtonUp(const CFX_PointF& point, uint32_t nFlag) {
294 CPWL_Wnd::OnLButtonUp(point, nFlag);
295
296 if (m_bMouseDown) {
297 // can receive keybord message
298 if (ClientHitTest(point) && !IsFocused())
299 SetFocus();
300
301 ReleaseCapture();
302 m_bMouseDown = false;
303 }
304
305 return true;
306 }
307
OnMouseMove(const CFX_PointF & point,uint32_t nFlag)308 bool CPWL_EditCtrl::OnMouseMove(const CFX_PointF& point, uint32_t nFlag) {
309 CPWL_Wnd::OnMouseMove(point, nFlag);
310
311 if (m_bMouseDown)
312 m_pEdit->OnMouseMove(point, false, false);
313
314 return true;
315 }
316
GetContentRect() const317 CFX_FloatRect CPWL_EditCtrl::GetContentRect() const {
318 return m_pEdit->GetContentRect();
319 }
320
SetEditCaret(bool bVisible)321 void CPWL_EditCtrl::SetEditCaret(bool bVisible) {
322 CFX_PointF ptHead;
323 CFX_PointF ptFoot;
324 if (bVisible)
325 GetCaretInfo(&ptHead, &ptFoot);
326
327 CPVT_WordPlace wpTemp = m_pEdit->GetCaretWordPlace();
328 IOnSetCaret(bVisible, ptHead, ptFoot, wpTemp);
329 }
330
GetCaretInfo(CFX_PointF * ptHead,CFX_PointF * ptFoot) const331 void CPWL_EditCtrl::GetCaretInfo(CFX_PointF* ptHead, CFX_PointF* ptFoot) const {
332 CFX_Edit_Iterator* pIterator = m_pEdit->GetIterator();
333 pIterator->SetAt(m_pEdit->GetCaret());
334 CPVT_Word word;
335 CPVT_Line line;
336 if (pIterator->GetWord(word)) {
337 ptHead->x = word.ptWord.x + word.fWidth;
338 ptHead->y = word.ptWord.y + word.fAscent;
339 ptFoot->x = word.ptWord.x + word.fWidth;
340 ptFoot->y = word.ptWord.y + word.fDescent;
341 } else if (pIterator->GetLine(line)) {
342 ptHead->x = line.ptLine.x;
343 ptHead->y = line.ptLine.y + line.fLineAscent;
344 ptFoot->x = line.ptLine.x;
345 ptFoot->y = line.ptLine.y + line.fLineDescent;
346 }
347 }
348
SetCaret(bool bVisible,const CFX_PointF & ptHead,const CFX_PointF & ptFoot)349 void CPWL_EditCtrl::SetCaret(bool bVisible,
350 const CFX_PointF& ptHead,
351 const CFX_PointF& ptFoot) {
352 if (m_pEditCaret) {
353 if (!IsFocused() || m_pEdit->IsSelected())
354 bVisible = false;
355
356 m_pEditCaret->SetCaret(bVisible, ptHead, ptFoot);
357 }
358 }
359
GetText() const360 CFX_WideString CPWL_EditCtrl::GetText() const {
361 return m_pEdit->GetText();
362 }
363
SetSel(int32_t nStartChar,int32_t nEndChar)364 void CPWL_EditCtrl::SetSel(int32_t nStartChar, int32_t nEndChar) {
365 m_pEdit->SetSel(nStartChar, nEndChar);
366 }
367
GetSel(int32_t & nStartChar,int32_t & nEndChar) const368 void CPWL_EditCtrl::GetSel(int32_t& nStartChar, int32_t& nEndChar) const {
369 m_pEdit->GetSel(nStartChar, nEndChar);
370 }
371
Clear()372 void CPWL_EditCtrl::Clear() {
373 if (!IsReadOnly())
374 m_pEdit->Clear();
375 }
376
SelectAll()377 void CPWL_EditCtrl::SelectAll() {
378 m_pEdit->SelectAll();
379 }
380
Paint()381 void CPWL_EditCtrl::Paint() {
382 m_pEdit->Paint();
383 }
384
EnableRefresh(bool bRefresh)385 void CPWL_EditCtrl::EnableRefresh(bool bRefresh) {
386 m_pEdit->EnableRefresh(bRefresh);
387 }
388
GetCaret() const389 int32_t CPWL_EditCtrl::GetCaret() const {
390 return m_pEdit->GetCaret();
391 }
392
SetCaret(int32_t nPos)393 void CPWL_EditCtrl::SetCaret(int32_t nPos) {
394 m_pEdit->SetCaret(nPos);
395 }
396
GetTotalWords() const397 int32_t CPWL_EditCtrl::GetTotalWords() const {
398 return m_pEdit->GetTotalWords();
399 }
400
SetScrollPos(const CFX_PointF & point)401 void CPWL_EditCtrl::SetScrollPos(const CFX_PointF& point) {
402 m_pEdit->SetScrollPos(point);
403 }
404
GetScrollPos() const405 CFX_PointF CPWL_EditCtrl::GetScrollPos() const {
406 return m_pEdit->GetScrollPos();
407 }
408
GetCaretFont() const409 CPDF_Font* CPWL_EditCtrl::GetCaretFont() const {
410 int32_t nFontIndex = 0;
411
412 CFX_Edit_Iterator* pIterator = m_pEdit->GetIterator();
413 pIterator->SetAt(m_pEdit->GetCaret());
414 CPVT_Word word;
415 CPVT_Section section;
416 if (pIterator->GetWord(word)) {
417 nFontIndex = word.nFontIndex;
418 } else if (HasFlag(PES_RICH)) {
419 if (pIterator->GetSection(section)) {
420 nFontIndex = section.WordProps.nFontIndex;
421 }
422 }
423
424 if (IPVT_FontMap* pFontMap = GetFontMap())
425 return pFontMap->GetPDFFont(nFontIndex);
426
427 return nullptr;
428 }
429
GetCaretFontSize() const430 FX_FLOAT CPWL_EditCtrl::GetCaretFontSize() const {
431 FX_FLOAT fFontSize = GetFontSize();
432
433 CFX_Edit_Iterator* pIterator = m_pEdit->GetIterator();
434 pIterator->SetAt(m_pEdit->GetCaret());
435 CPVT_Word word;
436 CPVT_Section section;
437 if (pIterator->GetWord(word)) {
438 fFontSize = word.fFontSize;
439 } else if (HasFlag(PES_RICH)) {
440 if (pIterator->GetSection(section)) {
441 fFontSize = section.WordProps.fFontSize;
442 }
443 }
444
445 return fFontSize;
446 }
447
SetText(const CFX_WideString & wsText)448 void CPWL_EditCtrl::SetText(const CFX_WideString& wsText) {
449 m_pEdit->SetText(wsText);
450 }
451
CopyText()452 void CPWL_EditCtrl::CopyText() {}
453
PasteText()454 void CPWL_EditCtrl::PasteText() {}
455
CutText()456 void CPWL_EditCtrl::CutText() {}
457
ShowVScrollBar(bool bShow)458 void CPWL_EditCtrl::ShowVScrollBar(bool bShow) {}
459
InsertText(const CFX_WideString & wsText)460 void CPWL_EditCtrl::InsertText(const CFX_WideString& wsText) {
461 if (!IsReadOnly())
462 m_pEdit->InsertText(wsText, FXFONT_DEFAULT_CHARSET);
463 }
464
InsertWord(uint16_t word,int32_t nCharset)465 void CPWL_EditCtrl::InsertWord(uint16_t word, int32_t nCharset) {
466 if (!IsReadOnly())
467 m_pEdit->InsertWord(word, nCharset);
468 }
469
InsertReturn()470 void CPWL_EditCtrl::InsertReturn() {
471 if (!IsReadOnly())
472 m_pEdit->InsertReturn();
473 }
474
Delete()475 void CPWL_EditCtrl::Delete() {
476 if (!IsReadOnly())
477 m_pEdit->Delete();
478 }
479
Backspace()480 void CPWL_EditCtrl::Backspace() {
481 if (!IsReadOnly())
482 m_pEdit->Backspace();
483 }
484
CanUndo() const485 bool CPWL_EditCtrl::CanUndo() const {
486 return !IsReadOnly() && m_pEdit->CanUndo();
487 }
488
CanRedo() const489 bool CPWL_EditCtrl::CanRedo() const {
490 return !IsReadOnly() && m_pEdit->CanRedo();
491 }
492
Redo()493 void CPWL_EditCtrl::Redo() {
494 if (CanRedo())
495 m_pEdit->Redo();
496 }
497
Undo()498 void CPWL_EditCtrl::Undo() {
499 if (CanUndo())
500 m_pEdit->Undo();
501 }
502
IOnSetScrollInfoY(FX_FLOAT fPlateMin,FX_FLOAT fPlateMax,FX_FLOAT fContentMin,FX_FLOAT fContentMax,FX_FLOAT fSmallStep,FX_FLOAT fBigStep)503 void CPWL_EditCtrl::IOnSetScrollInfoY(FX_FLOAT fPlateMin,
504 FX_FLOAT fPlateMax,
505 FX_FLOAT fContentMin,
506 FX_FLOAT fContentMax,
507 FX_FLOAT fSmallStep,
508 FX_FLOAT fBigStep) {
509 PWL_SCROLL_INFO Info;
510
511 Info.fPlateWidth = fPlateMax - fPlateMin;
512 Info.fContentMin = fContentMin;
513 Info.fContentMax = fContentMax;
514 Info.fSmallStep = fSmallStep;
515 Info.fBigStep = fBigStep;
516
517 OnNotify(this, PNM_SETSCROLLINFO, SBT_VSCROLL, (intptr_t)&Info);
518
519 if (IsFloatBigger(Info.fPlateWidth, Info.fContentMax - Info.fContentMin) ||
520 IsFloatEqual(Info.fPlateWidth, Info.fContentMax - Info.fContentMin)) {
521 ShowVScrollBar(false);
522 } else {
523 ShowVScrollBar(true);
524 }
525 }
526
IOnSetScrollPosY(FX_FLOAT fy)527 void CPWL_EditCtrl::IOnSetScrollPosY(FX_FLOAT fy) {
528 OnNotify(this, PNM_SETSCROLLPOS, SBT_VSCROLL, (intptr_t)&fy);
529 }
530
IOnSetCaret(bool bVisible,const CFX_PointF & ptHead,const CFX_PointF & ptFoot,const CPVT_WordPlace & place)531 void CPWL_EditCtrl::IOnSetCaret(bool bVisible,
532 const CFX_PointF& ptHead,
533 const CFX_PointF& ptFoot,
534 const CPVT_WordPlace& place) {
535 PWL_CARET_INFO cInfo;
536 cInfo.bVisible = bVisible;
537 cInfo.ptHead = ptHead;
538 cInfo.ptFoot = ptFoot;
539
540 OnNotify(this, PNM_SETCARETINFO, (intptr_t)&cInfo, (intptr_t) nullptr);
541 }
542
IOnCaretChange(const CPVT_SecProps & secProps,const CPVT_WordProps & wordProps)543 void CPWL_EditCtrl::IOnCaretChange(const CPVT_SecProps& secProps,
544 const CPVT_WordProps& wordProps) {}
545
IOnContentChange(const CFX_FloatRect & rcContent)546 void CPWL_EditCtrl::IOnContentChange(const CFX_FloatRect& rcContent) {}
547
IOnInvalidateRect(CFX_FloatRect * pRect)548 void CPWL_EditCtrl::IOnInvalidateRect(CFX_FloatRect* pRect) {
549 InvalidateRect(pRect);
550 }
551
GetCharSet() const552 int32_t CPWL_EditCtrl::GetCharSet() const {
553 return m_nCharSet < 0 ? FXFONT_DEFAULT_CHARSET : m_nCharSet;
554 }
555
GetTextRange(const CFX_FloatRect & rect,int32_t & nStartChar,int32_t & nEndChar) const556 void CPWL_EditCtrl::GetTextRange(const CFX_FloatRect& rect,
557 int32_t& nStartChar,
558 int32_t& nEndChar) const {
559 nStartChar = m_pEdit->WordPlaceToWordIndex(
560 m_pEdit->SearchWordPlace(CFX_PointF(rect.left, rect.top)));
561 nEndChar = m_pEdit->WordPlaceToWordIndex(
562 m_pEdit->SearchWordPlace(CFX_PointF(rect.right, rect.bottom)));
563 }
564
GetText(int32_t & nStartChar,int32_t & nEndChar) const565 CFX_WideString CPWL_EditCtrl::GetText(int32_t& nStartChar,
566 int32_t& nEndChar) const {
567 CPVT_WordPlace wpStart = m_pEdit->WordIndexToWordPlace(nStartChar);
568 CPVT_WordPlace wpEnd = m_pEdit->WordIndexToWordPlace(nEndChar);
569 return m_pEdit->GetRangeText(CPVT_WordRange(wpStart, wpEnd));
570 }
571
SetReadyToInput()572 void CPWL_EditCtrl::SetReadyToInput() {
573 if (m_bMouseDown) {
574 ReleaseCapture();
575 m_bMouseDown = false;
576 }
577 }
578