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/pwl/cpwl_edit_ctrl.h"
8
9 #include "core/fpdfdoc/cpvt_word.h"
10 #include "core/fxge/fx_font.h"
11 #include "fpdfsdk/pwl/cpwl_caret.h"
12 #include "fpdfsdk/pwl/cpwl_edit_impl.h"
13 #include "fpdfsdk/pwl/cpwl_font_map.h"
14 #include "fpdfsdk/pwl/cpwl_scroll_bar.h"
15 #include "fpdfsdk/pwl/cpwl_wnd.h"
16 #include "public/fpdf_fwlevent.h"
17
CPWL_EditCtrl()18 CPWL_EditCtrl::CPWL_EditCtrl()
19 : m_pEdit(new CPWL_EditImpl),
20 m_pEditCaret(nullptr),
21 m_bMouseDown(false),
22 m_nCharSet(FX_CHARSET_Default) {}
23
~CPWL_EditCtrl()24 CPWL_EditCtrl::~CPWL_EditCtrl() {}
25
OnCreate(CreateParams * pParamsToAdjust)26 void CPWL_EditCtrl::OnCreate(CreateParams* pParamsToAdjust) {
27 pParamsToAdjust->eCursorType = FXCT_VBEAM;
28 }
29
OnCreated()30 void CPWL_EditCtrl::OnCreated() {
31 SetFontSize(GetCreationParams().fFontSize);
32
33 m_pEdit->SetFontMap(GetFontMap());
34 m_pEdit->SetNotify(this);
35 m_pEdit->Initialize();
36 }
37
IsWndHorV()38 bool CPWL_EditCtrl::IsWndHorV() {
39 CFX_Matrix mt = GetWindowMatrix();
40 return mt.Transform(CFX_PointF(1, 1)).y == mt.Transform(CFX_PointF(0, 1)).y;
41 }
42
SetCursor()43 void CPWL_EditCtrl::SetCursor() {
44 if (IsValid()) {
45 if (CFX_SystemHandler* pSH = GetSystemHandler()) {
46 if (IsWndHorV())
47 pSH->SetCursor(FXCT_VBEAM);
48 else
49 pSH->SetCursor(FXCT_HBEAM);
50 }
51 }
52 }
53
GetSelectedText()54 WideString CPWL_EditCtrl::GetSelectedText() {
55 if (m_pEdit)
56 return m_pEdit->GetSelectedText();
57
58 return WideString();
59 }
60
ReplaceSelection(const WideString & text)61 void CPWL_EditCtrl::ReplaceSelection(const WideString& text) {
62 if (!m_pEdit)
63 return;
64
65 m_pEdit->ClearSelection();
66 m_pEdit->InsertText(text, FX_CHARSET_Default);
67 }
68
RePosChildWnd()69 bool CPWL_EditCtrl::RePosChildWnd() {
70 m_pEdit->SetPlateRect(GetClientRect());
71 return true;
72 }
73
SetScrollInfo(const PWL_SCROLL_INFO & info)74 void CPWL_EditCtrl::SetScrollInfo(const PWL_SCROLL_INFO& info) {
75 if (CPWL_Wnd* pChild = GetVScrollBar())
76 pChild->SetScrollInfo(info);
77 }
78
SetScrollPosition(float pos)79 void CPWL_EditCtrl::SetScrollPosition(float pos) {
80 if (CPWL_Wnd* pChild = GetVScrollBar())
81 pChild->SetScrollPosition(pos);
82 }
83
ScrollWindowVertically(float pos)84 void CPWL_EditCtrl::ScrollWindowVertically(float pos) {
85 m_pEdit->SetScrollPos(CFX_PointF(m_pEdit->GetScrollPos().x, pos));
86 }
87
CreateChildWnd(const CreateParams & cp)88 void CPWL_EditCtrl::CreateChildWnd(const CreateParams& cp) {
89 if (!IsReadOnly())
90 CreateEditCaret(cp);
91 }
92
CreateEditCaret(const CreateParams & cp)93 void CPWL_EditCtrl::CreateEditCaret(const CreateParams& cp) {
94 if (m_pEditCaret)
95 return;
96
97 m_pEditCaret = new CPWL_Caret;
98 m_pEditCaret->SetInvalidRect(GetClientRect());
99
100 CreateParams ecp = cp;
101 ecp.pParentWnd = this;
102 ecp.dwFlags = PWS_CHILD | PWS_NOREFRESHCLIP;
103 ecp.dwBorderWidth = 0;
104 ecp.nBorderStyle = BorderStyle::SOLID;
105 ecp.rcRectWnd = CFX_FloatRect();
106
107 m_pEditCaret->Create(ecp);
108 }
109
SetFontSize(float fFontSize)110 void CPWL_EditCtrl::SetFontSize(float fFontSize) {
111 m_pEdit->SetFontSize(fFontSize);
112 }
113
GetFontSize() const114 float CPWL_EditCtrl::GetFontSize() const {
115 return m_pEdit->GetFontSize();
116 }
117
OnKeyDown(uint16_t nChar,uint32_t nFlag)118 bool CPWL_EditCtrl::OnKeyDown(uint16_t nChar, uint32_t nFlag) {
119 if (m_bMouseDown)
120 return true;
121
122 bool bRet = CPWL_Wnd::OnKeyDown(nChar, nFlag);
123
124 // FILTER
125 switch (nChar) {
126 default:
127 return false;
128 case FWL_VKEY_Delete:
129 case FWL_VKEY_Up:
130 case FWL_VKEY_Down:
131 case FWL_VKEY_Left:
132 case FWL_VKEY_Right:
133 case FWL_VKEY_Home:
134 case FWL_VKEY_End:
135 case FWL_VKEY_Insert:
136 case 'C':
137 case 'V':
138 case 'X':
139 case 'A':
140 case 'Z':
141 case 'c':
142 case 'v':
143 case 'x':
144 case 'a':
145 case 'z':
146 break;
147 }
148
149 if (nChar == FWL_VKEY_Delete && m_pEdit->IsSelected())
150 nChar = FWL_VKEY_Unknown;
151
152 switch (nChar) {
153 case FWL_VKEY_Delete:
154 Delete();
155 return true;
156 case FWL_VKEY_Insert:
157 if (IsSHIFTpressed(nFlag))
158 PasteText();
159 return true;
160 case FWL_VKEY_Up:
161 m_pEdit->OnVK_UP(IsSHIFTpressed(nFlag), false);
162 return true;
163 case FWL_VKEY_Down:
164 m_pEdit->OnVK_DOWN(IsSHIFTpressed(nFlag), false);
165 return true;
166 case FWL_VKEY_Left:
167 m_pEdit->OnVK_LEFT(IsSHIFTpressed(nFlag), false);
168 return true;
169 case FWL_VKEY_Right:
170 m_pEdit->OnVK_RIGHT(IsSHIFTpressed(nFlag), false);
171 return true;
172 case FWL_VKEY_Home:
173 m_pEdit->OnVK_HOME(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
174 return true;
175 case FWL_VKEY_End:
176 m_pEdit->OnVK_END(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
177 return true;
178 case FWL_VKEY_Unknown:
179 if (!IsSHIFTpressed(nFlag))
180 ClearSelection();
181 else
182 CutText();
183 return true;
184 default:
185 break;
186 }
187
188 return bRet;
189 }
190
OnChar(uint16_t nChar,uint32_t nFlag)191 bool CPWL_EditCtrl::OnChar(uint16_t nChar, uint32_t nFlag) {
192 if (m_bMouseDown)
193 return true;
194
195 CPWL_Wnd::OnChar(nChar, nFlag);
196
197 // FILTER
198 switch (nChar) {
199 case 0x0A:
200 case 0x1B:
201 return false;
202 default:
203 break;
204 }
205
206 bool bCtrl = IsCTRLpressed(nFlag);
207 bool bAlt = IsALTpressed(nFlag);
208 bool bShift = IsSHIFTpressed(nFlag);
209
210 uint16_t word = nChar;
211
212 if (bCtrl && !bAlt) {
213 switch (nChar) {
214 case 'C' - 'A' + 1:
215 CopyText();
216 return true;
217 case 'V' - 'A' + 1:
218 PasteText();
219 return true;
220 case 'X' - 'A' + 1:
221 CutText();
222 return true;
223 case 'A' - 'A' + 1:
224 SelectAll();
225 return true;
226 case 'Z' - 'A' + 1:
227 if (bShift)
228 Redo();
229 else
230 Undo();
231 return true;
232 default:
233 if (nChar < 32)
234 return false;
235 }
236 }
237
238 if (IsReadOnly())
239 return true;
240
241 if (m_pEdit->IsSelected() && word == FWL_VKEY_Back)
242 word = FWL_VKEY_Unknown;
243
244 ClearSelection();
245
246 switch (word) {
247 case FWL_VKEY_Back:
248 Backspace();
249 break;
250 case FWL_VKEY_Return:
251 InsertReturn();
252 break;
253 case FWL_VKEY_Unknown:
254 break;
255 default:
256 InsertWord(word, GetCharSet());
257 break;
258 }
259
260 return true;
261 }
262
OnLButtonDown(const CFX_PointF & point,uint32_t nFlag)263 bool CPWL_EditCtrl::OnLButtonDown(const CFX_PointF& point, uint32_t nFlag) {
264 CPWL_Wnd::OnLButtonDown(point, nFlag);
265
266 if (ClientHitTest(point)) {
267 if (m_bMouseDown && !InvalidateRect(nullptr))
268 return true;
269
270 m_bMouseDown = true;
271 SetCapture();
272
273 m_pEdit->OnMouseDown(point, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag));
274 }
275
276 return true;
277 }
278
OnLButtonUp(const CFX_PointF & point,uint32_t nFlag)279 bool CPWL_EditCtrl::OnLButtonUp(const CFX_PointF& point, uint32_t nFlag) {
280 CPWL_Wnd::OnLButtonUp(point, nFlag);
281
282 if (m_bMouseDown) {
283 // can receive keybord message
284 if (ClientHitTest(point) && !IsFocused())
285 SetFocus();
286
287 ReleaseCapture();
288 m_bMouseDown = false;
289 }
290
291 return true;
292 }
293
OnMouseMove(const CFX_PointF & point,uint32_t nFlag)294 bool CPWL_EditCtrl::OnMouseMove(const CFX_PointF& point, uint32_t nFlag) {
295 CPWL_Wnd::OnMouseMove(point, nFlag);
296
297 if (m_bMouseDown)
298 m_pEdit->OnMouseMove(point, false, false);
299
300 return true;
301 }
302
SetEditCaret(bool bVisible)303 void CPWL_EditCtrl::SetEditCaret(bool bVisible) {
304 CFX_PointF ptHead;
305 CFX_PointF ptFoot;
306 if (bVisible)
307 GetCaretInfo(&ptHead, &ptFoot);
308
309 SetCaret(bVisible, ptHead, ptFoot);
310 // Note, |this| may no longer be viable at this point. If more work needs to
311 // be done, check the return value of SetCaret().
312 }
313
GetCaretInfo(CFX_PointF * ptHead,CFX_PointF * ptFoot) const314 void CPWL_EditCtrl::GetCaretInfo(CFX_PointF* ptHead, CFX_PointF* ptFoot) const {
315 CPWL_EditImpl_Iterator* pIterator = m_pEdit->GetIterator();
316 pIterator->SetAt(m_pEdit->GetCaret());
317 CPVT_Word word;
318 CPVT_Line line;
319 if (pIterator->GetWord(word)) {
320 ptHead->x = word.ptWord.x + word.fWidth;
321 ptHead->y = word.ptWord.y + word.fAscent;
322 ptFoot->x = word.ptWord.x + word.fWidth;
323 ptFoot->y = word.ptWord.y + word.fDescent;
324 } else if (pIterator->GetLine(line)) {
325 ptHead->x = line.ptLine.x;
326 ptHead->y = line.ptLine.y + line.fLineAscent;
327 ptFoot->x = line.ptLine.x;
328 ptFoot->y = line.ptLine.y + line.fLineDescent;
329 }
330 }
331
SetCaret(bool bVisible,const CFX_PointF & ptHead,const CFX_PointF & ptFoot)332 bool CPWL_EditCtrl::SetCaret(bool bVisible,
333 const CFX_PointF& ptHead,
334 const CFX_PointF& ptFoot) {
335 if (!m_pEditCaret)
336 return true;
337
338 if (!IsFocused() || m_pEdit->IsSelected())
339 bVisible = false;
340
341 ObservedPtr thisObserved(this);
342 m_pEditCaret->SetCaret(bVisible, ptHead, ptFoot);
343 if (!thisObserved)
344 return false;
345
346 return true;
347 }
348
GetText() const349 WideString CPWL_EditCtrl::GetText() const {
350 return m_pEdit->GetText();
351 }
352
SetSelection(int32_t nStartChar,int32_t nEndChar)353 void CPWL_EditCtrl::SetSelection(int32_t nStartChar, int32_t nEndChar) {
354 m_pEdit->SetSelection(nStartChar, nEndChar);
355 }
356
GetSelection(int32_t & nStartChar,int32_t & nEndChar) const357 void CPWL_EditCtrl::GetSelection(int32_t& nStartChar, int32_t& nEndChar) const {
358 m_pEdit->GetSelection(nStartChar, nEndChar);
359 }
360
ClearSelection()361 void CPWL_EditCtrl::ClearSelection() {
362 if (!IsReadOnly())
363 m_pEdit->ClearSelection();
364 }
365
SelectAll()366 void CPWL_EditCtrl::SelectAll() {
367 m_pEdit->SelectAll();
368 }
369
SetScrollPos(const CFX_PointF & point)370 void CPWL_EditCtrl::SetScrollPos(const CFX_PointF& point) {
371 m_pEdit->SetScrollPos(point);
372 }
373
GetScrollPos() const374 CFX_PointF CPWL_EditCtrl::GetScrollPos() const {
375 return m_pEdit->GetScrollPos();
376 }
377
CopyText()378 void CPWL_EditCtrl::CopyText() {}
379
PasteText()380 void CPWL_EditCtrl::PasteText() {}
381
CutText()382 void CPWL_EditCtrl::CutText() {}
383
InsertWord(uint16_t word,int32_t nCharset)384 void CPWL_EditCtrl::InsertWord(uint16_t word, int32_t nCharset) {
385 if (!IsReadOnly())
386 m_pEdit->InsertWord(word, nCharset);
387 }
388
InsertReturn()389 void CPWL_EditCtrl::InsertReturn() {
390 if (!IsReadOnly())
391 m_pEdit->InsertReturn();
392 }
393
Delete()394 void CPWL_EditCtrl::Delete() {
395 if (!IsReadOnly())
396 m_pEdit->Delete();
397 }
398
Backspace()399 void CPWL_EditCtrl::Backspace() {
400 if (!IsReadOnly())
401 m_pEdit->Backspace();
402 }
403
CanUndo() const404 bool CPWL_EditCtrl::CanUndo() const {
405 return !IsReadOnly() && m_pEdit->CanUndo();
406 }
407
CanRedo() const408 bool CPWL_EditCtrl::CanRedo() const {
409 return !IsReadOnly() && m_pEdit->CanRedo();
410 }
411
Redo()412 void CPWL_EditCtrl::Redo() {
413 if (CanRedo())
414 m_pEdit->Redo();
415 }
416
Undo()417 void CPWL_EditCtrl::Undo() {
418 if (CanUndo())
419 m_pEdit->Undo();
420 }
421
GetCharSet() const422 int32_t CPWL_EditCtrl::GetCharSet() const {
423 return m_nCharSet < 0 ? FX_CHARSET_Default : m_nCharSet;
424 }
425
SetReadyToInput()426 void CPWL_EditCtrl::SetReadyToInput() {
427 if (m_bMouseDown) {
428 ReleaseCapture();
429 m_bMouseDown = false;
430 }
431 }
432