Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 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 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 9 | #include <utility> |
| 10 | |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 11 | #include "core/fpdfdoc/cpvt_word.h" |
| 12 | #include "core/fxge/fx_font.h" |
| 13 | #include "fpdfsdk/pwl/cpwl_caret.h" |
| 14 | #include "fpdfsdk/pwl/cpwl_edit_impl.h" |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 15 | #include "fpdfsdk/pwl/cpwl_scroll_bar.h" |
| 16 | #include "fpdfsdk/pwl/cpwl_wnd.h" |
| 17 | #include "public/fpdf_fwlevent.h" |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 18 | #include "third_party/base/ptr_util.h" |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 19 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 20 | CPWL_EditCtrl::CPWL_EditCtrl( |
| 21 | const CreateParams& cp, |
| 22 | std::unique_ptr<IPWL_SystemHandler::PerWindowData> pAttachedData) |
| 23 | : CPWL_Wnd(cp, std::move(pAttachedData)), |
| 24 | m_pEdit(pdfium::MakeUnique<CPWL_EditImpl>()) { |
| 25 | GetCreationParams()->eCursorType = FXCT_VBEAM; |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 26 | } |
| 27 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 28 | CPWL_EditCtrl::~CPWL_EditCtrl() = default; |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 29 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 30 | void CPWL_EditCtrl::OnCreated() { |
| 31 | SetFontSize(GetCreationParams()->fFontSize); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 32 | m_pEdit->SetFontMap(GetFontMap()); |
| 33 | m_pEdit->SetNotify(this); |
| 34 | m_pEdit->Initialize(); |
| 35 | } |
| 36 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 37 | bool CPWL_EditCtrl::IsWndHorV() const { |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 38 | CFX_Matrix mt = GetWindowMatrix(); |
| 39 | return mt.Transform(CFX_PointF(1, 1)).y == mt.Transform(CFX_PointF(0, 1)).y; |
| 40 | } |
| 41 | |
| 42 | void CPWL_EditCtrl::SetCursor() { |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 43 | if (IsValid()) |
| 44 | GetSystemHandler()->SetCursor(IsWndHorV() ? FXCT_VBEAM : FXCT_HBEAM); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 45 | } |
| 46 | |
| 47 | WideString CPWL_EditCtrl::GetSelectedText() { |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 48 | return m_pEdit->GetSelectedText(); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 49 | } |
| 50 | |
| 51 | void CPWL_EditCtrl::ReplaceSelection(const WideString& text) { |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 52 | m_pEdit->ReplaceSelection(text); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 53 | } |
| 54 | |
| 55 | bool CPWL_EditCtrl::RePosChildWnd() { |
| 56 | m_pEdit->SetPlateRect(GetClientRect()); |
| 57 | return true; |
| 58 | } |
| 59 | |
| 60 | void CPWL_EditCtrl::SetScrollInfo(const PWL_SCROLL_INFO& info) { |
| 61 | if (CPWL_Wnd* pChild = GetVScrollBar()) |
| 62 | pChild->SetScrollInfo(info); |
| 63 | } |
| 64 | |
| 65 | void CPWL_EditCtrl::SetScrollPosition(float pos) { |
| 66 | if (CPWL_Wnd* pChild = GetVScrollBar()) |
| 67 | pChild->SetScrollPosition(pos); |
| 68 | } |
| 69 | |
| 70 | void CPWL_EditCtrl::ScrollWindowVertically(float pos) { |
| 71 | m_pEdit->SetScrollPos(CFX_PointF(m_pEdit->GetScrollPos().x, pos)); |
| 72 | } |
| 73 | |
| 74 | void CPWL_EditCtrl::CreateChildWnd(const CreateParams& cp) { |
| 75 | if (!IsReadOnly()) |
| 76 | CreateEditCaret(cp); |
| 77 | } |
| 78 | |
| 79 | void CPWL_EditCtrl::CreateEditCaret(const CreateParams& cp) { |
| 80 | if (m_pEditCaret) |
| 81 | return; |
| 82 | |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 83 | CreateParams ecp = cp; |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 84 | ecp.dwFlags = PWS_CHILD | PWS_NOREFRESHCLIP; |
| 85 | ecp.dwBorderWidth = 0; |
| 86 | ecp.nBorderStyle = BorderStyle::SOLID; |
| 87 | ecp.rcRectWnd = CFX_FloatRect(); |
| 88 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 89 | auto pCaret = pdfium::MakeUnique<CPWL_Caret>(ecp, CloneAttachedData()); |
| 90 | m_pEditCaret = pCaret.get(); |
| 91 | m_pEditCaret->SetInvalidRect(GetClientRect()); |
| 92 | AddChild(std::move(pCaret)); |
| 93 | m_pEditCaret->Realize(); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 94 | } |
| 95 | |
| 96 | void CPWL_EditCtrl::SetFontSize(float fFontSize) { |
| 97 | m_pEdit->SetFontSize(fFontSize); |
| 98 | } |
| 99 | |
| 100 | float CPWL_EditCtrl::GetFontSize() const { |
| 101 | return m_pEdit->GetFontSize(); |
| 102 | } |
| 103 | |
| 104 | bool CPWL_EditCtrl::OnKeyDown(uint16_t nChar, uint32_t nFlag) { |
| 105 | if (m_bMouseDown) |
| 106 | return true; |
| 107 | |
| 108 | bool bRet = CPWL_Wnd::OnKeyDown(nChar, nFlag); |
| 109 | |
| 110 | // FILTER |
| 111 | switch (nChar) { |
| 112 | default: |
| 113 | return false; |
| 114 | case FWL_VKEY_Delete: |
| 115 | case FWL_VKEY_Up: |
| 116 | case FWL_VKEY_Down: |
| 117 | case FWL_VKEY_Left: |
| 118 | case FWL_VKEY_Right: |
| 119 | case FWL_VKEY_Home: |
| 120 | case FWL_VKEY_End: |
| 121 | case FWL_VKEY_Insert: |
| 122 | case 'C': |
| 123 | case 'V': |
| 124 | case 'X': |
| 125 | case 'A': |
| 126 | case 'Z': |
| 127 | case 'c': |
| 128 | case 'v': |
| 129 | case 'x': |
| 130 | case 'a': |
| 131 | case 'z': |
| 132 | break; |
| 133 | } |
| 134 | |
| 135 | if (nChar == FWL_VKEY_Delete && m_pEdit->IsSelected()) |
| 136 | nChar = FWL_VKEY_Unknown; |
| 137 | |
| 138 | switch (nChar) { |
| 139 | case FWL_VKEY_Delete: |
| 140 | Delete(); |
| 141 | return true; |
| 142 | case FWL_VKEY_Insert: |
| 143 | if (IsSHIFTpressed(nFlag)) |
| 144 | PasteText(); |
| 145 | return true; |
| 146 | case FWL_VKEY_Up: |
| 147 | m_pEdit->OnVK_UP(IsSHIFTpressed(nFlag), false); |
| 148 | return true; |
| 149 | case FWL_VKEY_Down: |
| 150 | m_pEdit->OnVK_DOWN(IsSHIFTpressed(nFlag), false); |
| 151 | return true; |
| 152 | case FWL_VKEY_Left: |
| 153 | m_pEdit->OnVK_LEFT(IsSHIFTpressed(nFlag), false); |
| 154 | return true; |
| 155 | case FWL_VKEY_Right: |
| 156 | m_pEdit->OnVK_RIGHT(IsSHIFTpressed(nFlag), false); |
| 157 | return true; |
| 158 | case FWL_VKEY_Home: |
| 159 | m_pEdit->OnVK_HOME(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); |
| 160 | return true; |
| 161 | case FWL_VKEY_End: |
| 162 | m_pEdit->OnVK_END(IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); |
| 163 | return true; |
| 164 | case FWL_VKEY_Unknown: |
| 165 | if (!IsSHIFTpressed(nFlag)) |
| 166 | ClearSelection(); |
| 167 | else |
| 168 | CutText(); |
| 169 | return true; |
| 170 | default: |
| 171 | break; |
| 172 | } |
| 173 | |
| 174 | return bRet; |
| 175 | } |
| 176 | |
| 177 | bool CPWL_EditCtrl::OnChar(uint16_t nChar, uint32_t nFlag) { |
| 178 | if (m_bMouseDown) |
| 179 | return true; |
| 180 | |
| 181 | CPWL_Wnd::OnChar(nChar, nFlag); |
| 182 | |
| 183 | // FILTER |
| 184 | switch (nChar) { |
| 185 | case 0x0A: |
| 186 | case 0x1B: |
| 187 | return false; |
| 188 | default: |
| 189 | break; |
| 190 | } |
| 191 | |
| 192 | bool bCtrl = IsCTRLpressed(nFlag); |
| 193 | bool bAlt = IsALTpressed(nFlag); |
| 194 | bool bShift = IsSHIFTpressed(nFlag); |
| 195 | |
| 196 | uint16_t word = nChar; |
| 197 | |
| 198 | if (bCtrl && !bAlt) { |
| 199 | switch (nChar) { |
| 200 | case 'C' - 'A' + 1: |
| 201 | CopyText(); |
| 202 | return true; |
| 203 | case 'V' - 'A' + 1: |
| 204 | PasteText(); |
| 205 | return true; |
| 206 | case 'X' - 'A' + 1: |
| 207 | CutText(); |
| 208 | return true; |
| 209 | case 'A' - 'A' + 1: |
| 210 | SelectAll(); |
| 211 | return true; |
| 212 | case 'Z' - 'A' + 1: |
| 213 | if (bShift) |
| 214 | Redo(); |
| 215 | else |
| 216 | Undo(); |
| 217 | return true; |
| 218 | default: |
| 219 | if (nChar < 32) |
| 220 | return false; |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | if (IsReadOnly()) |
| 225 | return true; |
| 226 | |
| 227 | if (m_pEdit->IsSelected() && word == FWL_VKEY_Back) |
| 228 | word = FWL_VKEY_Unknown; |
| 229 | |
| 230 | ClearSelection(); |
| 231 | |
| 232 | switch (word) { |
| 233 | case FWL_VKEY_Back: |
| 234 | Backspace(); |
| 235 | break; |
| 236 | case FWL_VKEY_Return: |
| 237 | InsertReturn(); |
| 238 | break; |
| 239 | case FWL_VKEY_Unknown: |
| 240 | break; |
| 241 | default: |
| 242 | InsertWord(word, GetCharSet()); |
| 243 | break; |
| 244 | } |
| 245 | |
| 246 | return true; |
| 247 | } |
| 248 | |
| 249 | bool CPWL_EditCtrl::OnLButtonDown(const CFX_PointF& point, uint32_t nFlag) { |
| 250 | CPWL_Wnd::OnLButtonDown(point, nFlag); |
| 251 | |
| 252 | if (ClientHitTest(point)) { |
| 253 | if (m_bMouseDown && !InvalidateRect(nullptr)) |
| 254 | return true; |
| 255 | |
| 256 | m_bMouseDown = true; |
| 257 | SetCapture(); |
| 258 | |
| 259 | m_pEdit->OnMouseDown(point, IsSHIFTpressed(nFlag), IsCTRLpressed(nFlag)); |
| 260 | } |
| 261 | |
| 262 | return true; |
| 263 | } |
| 264 | |
| 265 | bool CPWL_EditCtrl::OnLButtonUp(const CFX_PointF& point, uint32_t nFlag) { |
| 266 | CPWL_Wnd::OnLButtonUp(point, nFlag); |
| 267 | |
| 268 | if (m_bMouseDown) { |
| 269 | // can receive keybord message |
| 270 | if (ClientHitTest(point) && !IsFocused()) |
| 271 | SetFocus(); |
| 272 | |
| 273 | ReleaseCapture(); |
| 274 | m_bMouseDown = false; |
| 275 | } |
| 276 | |
| 277 | return true; |
| 278 | } |
| 279 | |
| 280 | bool CPWL_EditCtrl::OnMouseMove(const CFX_PointF& point, uint32_t nFlag) { |
| 281 | CPWL_Wnd::OnMouseMove(point, nFlag); |
| 282 | |
| 283 | if (m_bMouseDown) |
| 284 | m_pEdit->OnMouseMove(point, false, false); |
| 285 | |
| 286 | return true; |
| 287 | } |
| 288 | |
| 289 | void CPWL_EditCtrl::SetEditCaret(bool bVisible) { |
| 290 | CFX_PointF ptHead; |
| 291 | CFX_PointF ptFoot; |
| 292 | if (bVisible) |
| 293 | GetCaretInfo(&ptHead, &ptFoot); |
| 294 | |
| 295 | SetCaret(bVisible, ptHead, ptFoot); |
| 296 | // Note, |this| may no longer be viable at this point. If more work needs to |
| 297 | // be done, check the return value of SetCaret(). |
| 298 | } |
| 299 | |
| 300 | void CPWL_EditCtrl::GetCaretInfo(CFX_PointF* ptHead, CFX_PointF* ptFoot) const { |
| 301 | CPWL_EditImpl_Iterator* pIterator = m_pEdit->GetIterator(); |
| 302 | pIterator->SetAt(m_pEdit->GetCaret()); |
| 303 | CPVT_Word word; |
| 304 | CPVT_Line line; |
| 305 | if (pIterator->GetWord(word)) { |
| 306 | ptHead->x = word.ptWord.x + word.fWidth; |
| 307 | ptHead->y = word.ptWord.y + word.fAscent; |
| 308 | ptFoot->x = word.ptWord.x + word.fWidth; |
| 309 | ptFoot->y = word.ptWord.y + word.fDescent; |
| 310 | } else if (pIterator->GetLine(line)) { |
| 311 | ptHead->x = line.ptLine.x; |
| 312 | ptHead->y = line.ptLine.y + line.fLineAscent; |
| 313 | ptFoot->x = line.ptLine.x; |
| 314 | ptFoot->y = line.ptLine.y + line.fLineDescent; |
| 315 | } |
| 316 | } |
| 317 | |
| 318 | bool CPWL_EditCtrl::SetCaret(bool bVisible, |
| 319 | const CFX_PointF& ptHead, |
| 320 | const CFX_PointF& ptFoot) { |
| 321 | if (!m_pEditCaret) |
| 322 | return true; |
| 323 | |
| 324 | if (!IsFocused() || m_pEdit->IsSelected()) |
| 325 | bVisible = false; |
| 326 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 327 | ObservedPtr<CPWL_EditCtrl> thisObserved(this); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 328 | m_pEditCaret->SetCaret(bVisible, ptHead, ptFoot); |
| 329 | if (!thisObserved) |
| 330 | return false; |
| 331 | |
| 332 | return true; |
| 333 | } |
| 334 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 335 | WideString CPWL_EditCtrl::GetText() { |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 336 | return m_pEdit->GetText(); |
| 337 | } |
| 338 | |
| 339 | void CPWL_EditCtrl::SetSelection(int32_t nStartChar, int32_t nEndChar) { |
| 340 | m_pEdit->SetSelection(nStartChar, nEndChar); |
| 341 | } |
| 342 | |
| 343 | void CPWL_EditCtrl::GetSelection(int32_t& nStartChar, int32_t& nEndChar) const { |
| 344 | m_pEdit->GetSelection(nStartChar, nEndChar); |
| 345 | } |
| 346 | |
| 347 | void CPWL_EditCtrl::ClearSelection() { |
| 348 | if (!IsReadOnly()) |
| 349 | m_pEdit->ClearSelection(); |
| 350 | } |
| 351 | |
| 352 | void CPWL_EditCtrl::SelectAll() { |
| 353 | m_pEdit->SelectAll(); |
| 354 | } |
| 355 | |
| 356 | void CPWL_EditCtrl::SetScrollPos(const CFX_PointF& point) { |
| 357 | m_pEdit->SetScrollPos(point); |
| 358 | } |
| 359 | |
| 360 | CFX_PointF CPWL_EditCtrl::GetScrollPos() const { |
| 361 | return m_pEdit->GetScrollPos(); |
| 362 | } |
| 363 | |
| 364 | void CPWL_EditCtrl::CopyText() {} |
| 365 | |
| 366 | void CPWL_EditCtrl::PasteText() {} |
| 367 | |
| 368 | void CPWL_EditCtrl::CutText() {} |
| 369 | |
| 370 | void CPWL_EditCtrl::InsertWord(uint16_t word, int32_t nCharset) { |
| 371 | if (!IsReadOnly()) |
| 372 | m_pEdit->InsertWord(word, nCharset); |
| 373 | } |
| 374 | |
| 375 | void CPWL_EditCtrl::InsertReturn() { |
| 376 | if (!IsReadOnly()) |
| 377 | m_pEdit->InsertReturn(); |
| 378 | } |
| 379 | |
| 380 | void CPWL_EditCtrl::Delete() { |
| 381 | if (!IsReadOnly()) |
| 382 | m_pEdit->Delete(); |
| 383 | } |
| 384 | |
| 385 | void CPWL_EditCtrl::Backspace() { |
| 386 | if (!IsReadOnly()) |
| 387 | m_pEdit->Backspace(); |
| 388 | } |
| 389 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 390 | bool CPWL_EditCtrl::CanUndo() { |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 391 | return !IsReadOnly() && m_pEdit->CanUndo(); |
| 392 | } |
| 393 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 394 | bool CPWL_EditCtrl::CanRedo() { |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 395 | return !IsReadOnly() && m_pEdit->CanRedo(); |
| 396 | } |
| 397 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 398 | bool CPWL_EditCtrl::Undo() { |
| 399 | return CanUndo() && m_pEdit->Undo(); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 400 | } |
| 401 | |
Haibo Huang | 49cc930 | 2020-04-27 16:14:24 -0700 | [diff] [blame] | 402 | bool CPWL_EditCtrl::Redo() { |
| 403 | return CanRedo() && m_pEdit->Redo(); |
Philip P. Moltmann | d904c1e | 2018-03-19 09:26:45 -0700 | [diff] [blame] | 404 | } |
| 405 | |
| 406 | int32_t CPWL_EditCtrl::GetCharSet() const { |
| 407 | return m_nCharSet < 0 ? FX_CHARSET_Default : m_nCharSet; |
| 408 | } |
| 409 | |
| 410 | void CPWL_EditCtrl::SetReadyToInput() { |
| 411 | if (m_bMouseDown) { |
| 412 | ReleaseCapture(); |
| 413 | m_bMouseDown = false; |
| 414 | } |
| 415 | } |