WebKit/qt/WebCoreSupport/EditorClientQt.cpp

   1 /*
   2  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
   3  * Copyright (C) 2006 Zack Rusin <zack@kde.org>
   4  * Copyright (C) 2006 Apple Computer, Inc.
   5  *
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  20  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  25  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  27  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include "config.h"
  31 #include "EditorClientQt.h"
  32
  33 #include "qwebpage.h"
  34 #include "qwebpage_p.h"
  35
  36 #include "Document.h"
  37 #include "EditCommandQt.h"
  38 #include "Page.h"
  39 #include "Editor.h"
  40 #include "FocusController.h"
  41 #include "Frame.h"
  42 #include "KeyboardCodes.h"
  43 #include "KeyboardEvent.h"
  44 #include "Page.h"
  45 #include "PlatformKeyboardEvent.h"
  46 #include "NotImplemented.h"
  47 #include "Node.h"
  48 #include "Range.h"
  49
  50 #include <stdio.h>
  51
  52 #include <QUndoStack>
  53 #define methodDebug() qDebug("EditorClientQt: %s", __FUNCTION__);
  54
  55 static bool dumpEditingCallbacks = false;
  56 static bool drt_run = false;
  57 static bool acceptsEditing = true;
  58 void QWEBKIT_EXPORT qt_dump_editing_callbacks(bool b)
  59 {
  60     dumpEditingCallbacks = b;
  61 }
  62 void QWEBKIT_EXPORT qt_drt_run(bool b)
  63 {
  64     drt_run = b;
  65 }
  66
  67 void QWEBKIT_EXPORT qt_dump_set_accepts_editing(bool b)
  68 {
  69     acceptsEditing = b;
  70 }
  71
  72
  73 static QString dumpPath(WebCore::Node *node)
  74 {
  75     QString str = node->nodeName();
  76
  77     WebCore::Node *parent = node->parentNode();
  78     while (parent) {
  79         str.append(QLatin1String(" > "));
  80         str.append(parent->nodeName());
  81         parent = parent->parentNode();
  82     }
  83     return str;
  84 }
  85
  86 static QString dumpRange(WebCore::Range *range)
  87 {
  88     if (!range)
  89         return QLatin1String("(null)");
  90     QString str;
  91     WebCore::ExceptionCode code;
  92     str.sprintf("range from %ld of %ls to %ld of %ls",
  93                 range->startOffset(code), dumpPath(range->startContainer(code)).unicode(),
  94                 range->endOffset(code), dumpPath(range->endContainer(code)).unicode());
  95     return str;
  96 }
  97
  98
  99 namespace WebCore {
 100
 101
 102 bool EditorClientQt::shouldDeleteRange(Range* range)
 103 {
 104     if (dumpEditingCallbacks)
 105         printf("EDITING DELEGATE: shouldDeleteDOMRange:%s\n", dumpRange(range).toUtf8().constData());
 106
 107     return true;
 108 }
 109
 110 bool EditorClientQt::shouldShowDeleteInterface(HTMLElement* element)
 111 {
 112     if (drt_run)
 113         return element->className() == "needsDeletionUI";
 114     return false;
 115 }
 116
 117 bool EditorClientQt::isContinuousSpellCheckingEnabled()
 118 {
 119     return false;
 120 }
 121
 122 bool EditorClientQt::isGrammarCheckingEnabled()
 123 {
 124     return false;
 125 }
 126
 127 int EditorClientQt::spellCheckerDocumentTag()
 128 {
 129     return 0;
 130 }
 131
 132 bool EditorClientQt::shouldBeginEditing(WebCore::Range* range)
 133 {
 134     if (dumpEditingCallbacks)
 135         printf("EDITING DELEGATE: shouldBeginEditingInDOMRange:%s\n", dumpRange(range).toUtf8().constData());
 136     return true;
 137 }
 138
 139 bool EditorClientQt::shouldEndEditing(WebCore::Range* range)
 140 {
 141     if (dumpEditingCallbacks)
 142         printf("EDITING DELEGATE: shouldEndEditingInDOMRange:%s\n", dumpRange(range).toUtf8().constData());
 143     return true;
 144 }
 145
 146 bool EditorClientQt::shouldInsertText(const String& string, Range* range, EditorInsertAction action)
 147 {
 148     if (dumpEditingCallbacks) {
 149         static const char *insertactionstring[] = {
 150             "WebViewInsertActionTyped",
 151             "WebViewInsertActionPasted",
 152             "WebViewInsertActionDropped",
 153         };
 154
 155         printf("EDITING DELEGATE: shouldInsertText:%s replacingDOMRange:%s givenAction:%s\n",
 156                QString(string).toUtf8().constData(), dumpRange(range).toUtf8().constData(), insertactionstring[action]);
 157     }
 158     return acceptsEditing;
 159 }
 160
 161 bool EditorClientQt::shouldChangeSelectedRange(Range* currentRange, Range* proposedRange, EAffinity selectionAffinity, bool stillSelecting)
 162 {
 163     if (dumpEditingCallbacks) {
 164         static const char *affinitystring[] = {
 165             "NSSelectionAffinityUpstream",
 166             "NSSelectionAffinityDownstream"
 167         };
 168         static const char *boolstring[] = {
 169             "FALSE",
 170             "TRUE"
 171         };
 172
 173         printf("EDITING DELEGATE: shouldChangeSelectedDOMRange:%s toDOMRange:%s affinity:%s stillSelecting:%s\n",
 174                dumpRange(currentRange).toUtf8().constData(),
 175                dumpRange(proposedRange).toUtf8().constData(),
 176                affinitystring[selectionAffinity], boolstring[stillSelecting]);
 177     }
 178     return acceptsEditing;
 179 }
 180
 181 bool EditorClientQt::shouldApplyStyle(WebCore::CSSStyleDeclaration* style,
 182                                       WebCore::Range* range)
 183 {
 184     if (dumpEditingCallbacks)
 185         printf("EDITING DELEGATE: shouldApplyStyle:%s toElementsInDOMRange:%s\n",
 186                QString(style->cssText()).toUtf8().constData(), dumpRange(range).toUtf8().constData());
 187     return acceptsEditing;
 188 }
 189
 190 bool EditorClientQt::shouldMoveRangeAfterDelete(WebCore::Range*, WebCore::Range*)
 191 {
 192     notImplemented();
 193     return true;
 194 }
 195
 196 void EditorClientQt::didBeginEditing()
 197 {
 198     if (dumpEditingCallbacks)
 199         printf("EDITING DELEGATE: webViewDidBeginEditing:WebViewDidBeginEditingNotification\n");
 200     m_editing = true;
 201 }
 202
 203 void EditorClientQt::respondToChangedContents()
 204 {
 205     if (dumpEditingCallbacks)
 206         printf("EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification\n");
 207     m_page->d->modified = true;
 208
 209     m_page->d->updateEditorActions();
 210 }
 211
 212 void EditorClientQt::respondToChangedSelection()
 213 {
 214     if (dumpEditingCallbacks)
 215         printf("EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification\n");
 216 //     const Selection &selection = m_page->d->page->selection();
 217 //     char buffer[1024];
 218 //     selection.formatForDebugger(buffer, sizeof(buffer));
 219 //     printf("%s\n", buffer);
 220
 221     m_page->d->updateEditorActions();
 222     emit m_page->selectionChanged();
 223     emit m_page->microFocusChanged();
 224 }
 225
 226 void EditorClientQt::didEndEditing()
 227 {
 228     if (dumpEditingCallbacks)
 229         printf("EDITING DELEGATE: webViewDidEndEditing:WebViewDidEndEditingNotification\n");
 230     m_editing = false;
 231 }
 232
 233 void EditorClientQt::didWriteSelectionToPasteboard()
 234 {
 235 }
 236
 237 void EditorClientQt::didSetSelectionTypesForPasteboard()
 238 {
 239 }
 240
 241 bool EditorClientQt::selectWordBeforeMenuEvent()
 242 {
 243     notImplemented();
 244     return false;
 245 }
 246
 247 bool EditorClientQt::isEditable()
 248 {
 249     return m_page->isEditable();
 250 }
 251
 252 void EditorClientQt::registerCommandForUndo(WTF::PassRefPtr<WebCore::EditCommand> cmd)
 253 {
 254     Frame* frame = m_page->d->page->focusController()->focusedOrMainFrame();
 255     if (m_inUndoRedo || (frame && !frame->editor()->lastEditCommand() /* HACK!! Don't recreate undos */)) {
 256         return;
 257     }
 258     m_page->undoStack()->push(new EditCommandQt(cmd));
 259 }
 260
 261 void EditorClientQt::registerCommandForRedo(WTF::PassRefPtr<WebCore::EditCommand>)
 262 {
 263 }
 264
 265 void EditorClientQt::clearUndoRedoOperations()
 266 {
 267     return m_page->undoStack()->clear();
 268 }
 269
 270 bool EditorClientQt::canUndo() const
 271 {
 272     return m_page->undoStack()->canUndo();
 273 }
 274
 275 bool EditorClientQt::canRedo() const
 276 {
 277     return m_page->undoStack()->canRedo();
 278 }
 279
 280 void EditorClientQt::undo()
 281 {
 282     m_inUndoRedo = true;
 283     m_page->undoStack()->undo();
 284     m_inUndoRedo = false;
 285 }
 286
 287 void EditorClientQt::redo()
 288 {
 289     m_inUndoRedo = true;
 290     m_page->undoStack()->redo();
 291     m_inUndoRedo = false;
 292 }
 293
 294 bool EditorClientQt::shouldInsertNode(Node* node, Range* range, EditorInsertAction action)
 295 {
 296     if (dumpEditingCallbacks) {
 297         static const char *insertactionstring[] = {
 298             "WebViewInsertActionTyped",
 299             "WebViewInsertActionPasted",
 300             "WebViewInsertActionDropped",
 301         };
 302
 303         printf("EDITING DELEGATE: shouldInsertNode:%s replacingDOMRange:%s givenAction:%s\n", dumpPath(node).toUtf8().constData(),
 304                dumpRange(range).toUtf8().constData(), insertactionstring[action]);
 305     }
 306     return acceptsEditing;
 307 }
 308
 309 void EditorClientQt::pageDestroyed()
 310 {
 311     delete this;
 312 }
 313
 314 bool EditorClientQt::smartInsertDeleteEnabled()
 315 {
 316     notImplemented();
 317     return false;
 318 }
 319
 320 void EditorClientQt::toggleContinuousSpellChecking()
 321 {
 322     notImplemented();
 323 }
 324
 325 void EditorClientQt::toggleGrammarChecking()
 326 {
 327     notImplemented();
 328 }
 329
 330 void EditorClientQt::handleKeyboardEvent(KeyboardEvent* event)
 331 {
 332     Frame* frame = m_page->d->page->focusController()->focusedOrMainFrame();
 333     if (!frame || !frame->document()->focusedNode())
 334         return;
 335
 336     const PlatformKeyboardEvent* kevent = event->keyEvent();
 337     if (!kevent || kevent->type() == PlatformKeyboardEvent::KeyUp)
 338         return;
 339
 340     Node* start = frame->selection()->start().node();
 341     if (!start)
 342         return;
 343
 344     // FIXME: refactor all of this to use Actions or something like them
 345     if (start->isContentEditable()) {
 346         switch (kevent->windowsVirtualKeyCode()) {
 347             case VK_RETURN:
 348                 frame->editor()->command("InsertLineBreak").execute();
 349                 break;
 350             case VK_BACK:
 351                 frame->editor()->deleteWithDirection(SelectionController::BACKWARD,
 352                         CharacterGranularity, false, true);
 353                 break;
 354             case VK_DELETE:
 355                 frame->editor()->deleteWithDirection(SelectionController::FORWARD,
 356                         CharacterGranularity, false, true);
 357                 break;
 358             case VK_LEFT:
 359                 if (kevent->shiftKey())
 360                     frame->editor()->command("MoveLeftAndModifySelection").execute();
 361                 else frame->editor()->command("MoveLeft").execute();
 362                 break;
 363             case VK_RIGHT:
 364                 if (kevent->shiftKey())
 365                     frame->editor()->command("MoveRightAndModifySelection").execute();
 366                 else frame->editor()->command("MoveRight").execute();
 367                 break;
 368             case VK_UP:
 369                 if (kevent->shiftKey())
 370                     frame->editor()->command("MoveUpAndModifySelection").execute();
 371                 else frame->editor()->command("MoveUp").execute();
 372                 break;
 373             case VK_DOWN:
 374                 if (kevent->shiftKey())
 375                     frame->editor()->command("MoveDownAndModifySelection").execute();
 376                 else frame->editor()->command("MoveDown").execute();
 377                 break;
 378             case VK_PRIOR:  // PageUp
 379                 frame->editor()->command("MovePageUp").execute();
 380                 break;
 381             case VK_NEXT:  // PageDown
 382                 frame->editor()->command("MovePageDown").execute();
 383                 break;
 384             case VK_TAB:
 385                 return;
 386             default:
 387                 if (kevent->type() != PlatformKeyboardEvent::KeyDown
 388                         && !kevent->ctrlKey() && !kevent->altKey() && !kevent->text().isEmpty()) {
 389                     frame->editor()->insertText(kevent->text(), event);
 390                 } else if (kevent->ctrlKey()) {
 391                     switch (kevent->windowsVirtualKeyCode()) {
 392                         case VK_A:
 393                             frame->editor()->command("SelectAll").execute();
 394                             break;
 395                         case VK_B:
 396                             frame->editor()->command("ToggleBold").execute();
 397                             break;
 398                         case VK_C:
 399                             frame->editor()->command("Copy").execute();
 400                             break;
 401                         case VK_I:
 402                             frame->editor()->command("ToggleItalic").execute();
 403                             break;
 404                         case VK_V:
 405                             frame->editor()->command("Paste").execute();
 406                             break;
 407                         case VK_X:
 408                             frame->editor()->command("Cut").execute();
 409                             break;
 410                         case VK_Y:
 411                             frame->editor()->command("Redo").execute();
 412                             break;
 413                         case VK_Z:
 414                             frame->editor()->command("Undo").execute();
 415                             break;
 416                         default:
 417                             // catch combination AltGr+key or Ctrl+Alt+key
 418                             if (kevent->type() != PlatformKeyboardEvent::KeyDown && !kevent->text().isEmpty()) {
 419                                 frame->editor()->insertText(kevent->text(), event);
 420                                 break;
 421                             }
 422                             return;
 423                     }
 424                 } else return;
 425         }
 426     } else {
 427         switch (kevent->windowsVirtualKeyCode()) {
 428             case VK_UP:
 429                 frame->editor()->command("MoveUp").execute();
 430                 break;
 431             case VK_DOWN:
 432                 frame->editor()->command("MoveDown").execute();
 433                 break;
 434             case VK_PRIOR:  // PageUp
 435                 frame->editor()->command("MovePageUp").execute();
 436                 break;
 437             case VK_NEXT:  // PageDown
 438                 frame->editor()->command("MovePageDown").execute();
 439                 break;
 440             case VK_HOME:
 441                 if (kevent->ctrlKey())
 442                     frame->editor()->command("MoveToBeginningOfDocument").execute();
 443                 break;
 444             case VK_END:
 445                 if (kevent->ctrlKey())
 446                     frame->editor()->command("MoveToEndOfDocument").execute();
 447                 break;
 448             default:
 449                 if (kevent->ctrlKey()) {
 450                     switch (kevent->windowsVirtualKeyCode()) {
 451                         case VK_A:
 452                             frame->editor()->command("SelectAll").execute();
 453                             break;
 454                         case VK_C: case VK_X:
 455                             frame->editor()->command("Copy").execute();
 456                             break;
 457                         default:
 458                             return;
 459                     }
 460                 } else return;
 461         }
 462     }
 463     event->setDefaultHandled();
 464 }
 465
 466 void EditorClientQt::handleInputMethodKeydown(KeyboardEvent*)
 467 {
 468 }
 469
 470 EditorClientQt::EditorClientQt(QWebPage* page)
 471     : m_page(page), m_editing(false), m_inUndoRedo(false)
 472 {
 473 }
 474
 475 void EditorClientQt::textFieldDidBeginEditing(Element*)
 476 {
 477     m_editing = true;
 478 }
 479
 480 void EditorClientQt::textFieldDidEndEditing(Element*)
 481 {
 482     m_editing = false;
 483 }
 484
 485 void EditorClientQt::textDidChangeInTextField(Element*)
 486 {
 487 }
 488
 489 bool EditorClientQt::doTextFieldCommandFromEvent(Element*, KeyboardEvent*)
 490 {
 491     return false;
 492 }
 493
 494 void EditorClientQt::textWillBeDeletedInTextField(Element*)
 495 {
 496 }
 497
 498 void EditorClientQt::textDidChangeInTextArea(Element*)
 499 {
 500 }
 501
 502 void EditorClientQt::ignoreWordInSpellDocument(const String&)
 503 {
 504     notImplemented();
 505 }
 506
 507 void EditorClientQt::learnWord(const String&)
 508 {
 509     notImplemented();
 510 }
 511
 512 void EditorClientQt::checkSpellingOfString(const UChar*, int, int*, int*)
 513 {
 514     notImplemented();
 515 }
 516
 517 void EditorClientQt::checkGrammarOfString(const UChar*, int, Vector<GrammarDetail>&, int*, int*)
 518 {
 519     notImplemented();
 520 }
 521
 522 void EditorClientQt::updateSpellingUIWithGrammarString(const String&, const GrammarDetail&)
 523 {
 524     notImplemented();
 525 }
 526
 527 void EditorClientQt::updateSpellingUIWithMisspelledWord(const String&)
 528 {
 529     notImplemented();
 530 }
 531
 532 void EditorClientQt::showSpellingUI(bool)
 533 {
 534     notImplemented();
 535 }
 536
 537 bool EditorClientQt::spellingUIIsShowing()
 538 {
 539     notImplemented();
 540     return false;
 541 }
 542
 543 void EditorClientQt::getGuessesForWord(const String&, Vector<String>&)
 544 {
 545     notImplemented();
 546 }
 547
 548 bool EditorClientQt::isEditing() const
 549 {
 550     return m_editing;
 551 }
 552
 553 void EditorClientQt::setInputMethodState(bool active)
 554 {
 555     QWidget *view = m_page->view();
 556     if (view) {
 557         view->setAttribute(Qt::WA_InputMethodEnabled, active);
 558         emit m_page->microFocusChanged();
 559     }
 560 }
 561
 562 }
 563
 564 // vim: ts=4 sw=4 et