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
 210 void EditorClientQt::respondToChangedSelection()
 211 {
 212     if (dumpEditingCallbacks)
 213         printf("EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification\n");
 214 //     const Selection &selection = m_page->d->page->selection();
 215 //     char buffer[1024];
 216 //     selection.formatForDebugger(buffer, sizeof(buffer));
 217 //     printf("%s\n", buffer);
 218
 219     m_page->d->updateEditorActions();
 220     emit m_page->selectionChanged();
 221     emit m_page->microFocusChanged();
 222 }
 223
 224 void EditorClientQt::didEndEditing()
 225 {
 226     if (dumpEditingCallbacks)
 227         printf("EDITING DELEGATE: webViewDidEndEditing:WebViewDidEndEditingNotification\n");
 228     m_editing = false;
 229 }
 230
 231 void EditorClientQt::didWriteSelectionToPasteboard()
 232 {
 233 }
 234
 235 void EditorClientQt::didSetSelectionTypesForPasteboard()
 236 {
 237 }
 238
 239 bool EditorClientQt::selectWordBeforeMenuEvent()
 240 {
 241     notImplemented();
 242     return false;
 243 }
 244
 245 bool EditorClientQt::isEditable()
 246 {
 247     return m_page->isEditable();
 248 }
 249
 250 void EditorClientQt::registerCommandForUndo(WTF::PassRefPtr<WebCore::EditCommand> cmd)
 251 {
 252     Frame* frame = m_page->d->page->focusController()->focusedOrMainFrame();
 253     if (m_inUndoRedo || (frame && !frame->editor()->lastEditCommand() /* HACK!! Don't recreate undos */)) {
 254         return;
 255     }
 256     m_page->undoStack()->push(new EditCommandQt(cmd));
 257 }
 258
 259 void EditorClientQt::registerCommandForRedo(WTF::PassRefPtr<WebCore::EditCommand>)
 260 {
 261 }
 262
 263 void EditorClientQt::clearUndoRedoOperations()
 264 {
 265     return m_page->undoStack()->clear();
 266 }
 267
 268 bool EditorClientQt::canUndo() const
 269 {
 270     return m_page->undoStack()->canUndo();
 271 }
 272
 273 bool EditorClientQt::canRedo() const
 274 {
 275     return m_page->undoStack()->canRedo();
 276 }
 277
 278 void EditorClientQt::undo()
 279 {
 280     m_inUndoRedo = true;
 281     m_page->undoStack()->undo();
 282     m_inUndoRedo = false;
 283 }
 284
 285 void EditorClientQt::redo()
 286 {
 287     m_inUndoRedo = true;
 288     m_page->undoStack()->redo();
 289     m_inUndoRedo = false;
 290 }
 291
 292 bool EditorClientQt::shouldInsertNode(Node* node, Range* range, EditorInsertAction action)
 293 {
 294     if (dumpEditingCallbacks) {
 295         static const char *insertactionstring[] = {
 296             "WebViewInsertActionTyped",
 297             "WebViewInsertActionPasted",
 298             "WebViewInsertActionDropped",
 299         };
 300
 301         printf("EDITING DELEGATE: shouldInsertNode:%s replacingDOMRange:%s givenAction:%s\n", dumpPath(node).toUtf8().constData(),
 302                dumpRange(range).toUtf8().constData(), insertactionstring[action]);
 303     }
 304     return acceptsEditing;
 305 }
 306
 307 void EditorClientQt::pageDestroyed()
 308 {
 309     delete this;
 310 }
 311
 312 bool EditorClientQt::smartInsertDeleteEnabled()
 313 {
 314     notImplemented();
 315     return false;
 316 }
 317
 318 void EditorClientQt::toggleContinuousSpellChecking()
 319 {
 320     notImplemented();
 321 }
 322
 323 void EditorClientQt::toggleGrammarChecking()
 324 {
 325     notImplemented();
 326 }
 327
 328 void EditorClientQt::handleKeyboardEvent(KeyboardEvent* event)
 329 {
 330     Frame* frame = m_page->d->page->focusController()->focusedOrMainFrame();
 331     if (!frame || !frame->document()->focusedNode())
 332         return;
 333
 334     const PlatformKeyboardEvent* kevent = event->keyEvent();
 335     if (!kevent || kevent->type() == PlatformKeyboardEvent::KeyUp)
 336         return;
 337
 338     Node* start = frame->selection()->start().node();
 339     if (!start)
 340         return;
 341
 342     // FIXME: refactor all of this to use Actions or something like them
 343     if (start->isContentEditable()) {
 344         switch (kevent->windowsVirtualKeyCode()) {
 345             case VK_RETURN:
 346                 frame->editor()->command("InsertLineBreak").execute();
 347                 break;
 348             case VK_BACK:
 349                 frame->editor()->deleteWithDirection(SelectionController::BACKWARD,
 350                         CharacterGranularity, false, true);
 351                 break;
 352             case VK_DELETE:
 353                 frame->editor()->deleteWithDirection(SelectionController::FORWARD,
 354                         CharacterGranularity, false, true);
 355                 break;
 356             case VK_LEFT:
 357                 if (kevent->shiftKey())
 358                     frame->editor()->command("MoveLeftAndModifySelection").execute();
 359                 else frame->editor()->command("MoveLeft").execute();
 360                 break;
 361             case VK_RIGHT:
 362                 if (kevent->shiftKey())
 363                     frame->editor()->command("MoveRightAndModifySelection").execute();
 364                 else frame->editor()->command("MoveRight").execute();
 365                 break;
 366             case VK_UP:
 367                 if (kevent->shiftKey())
 368                     frame->editor()->command("MoveUpAndModifySelection").execute();
 369                 else frame->editor()->command("MoveUp").execute();
 370                 break;
 371             case VK_DOWN:
 372                 if (kevent->shiftKey())
 373                     frame->editor()->command("MoveDownAndModifySelection").execute();
 374                 else frame->editor()->command("MoveDown").execute();
 375                 break;
 376             case VK_PRIOR:  // PageUp
 377                 frame->editor()->command("MovePageUp").execute();
 378                 break;
 379             case VK_NEXT:  // PageDown
 380                 frame->editor()->command("MovePageDown").execute();
 381                 break;
 382             case VK_TAB:
 383                 return;
 384             default:
 385                 if (kevent->type() != PlatformKeyboardEvent::KeyDown
 386                         && !kevent->ctrlKey() && !kevent->altKey() && !kevent->text().isEmpty()) {
 387                     frame->editor()->insertText(kevent->text(), event);
 388                 } else if (kevent->ctrlKey()) {
 389                     switch (kevent->windowsVirtualKeyCode()) {
 390                         case VK_A:
 391                             frame->editor()->command("SelectAll").execute();
 392                             break;
 393                         case VK_B:
 394                             frame->editor()->command("ToggleBold").execute();
 395                             break;
 396                         case VK_C:
 397                             frame->editor()->command("Copy").execute();
 398                             break;
 399                         case VK_I:
 400                             frame->editor()->command("ToggleItalic").execute();
 401                             break;
 402                         case VK_V:
 403                             frame->editor()->command("Paste").execute();
 404                             break;
 405                         case VK_X:
 406                             frame->editor()->command("Cut").execute();
 407                             break;
 408                         case VK_Y:
 409                             frame->editor()->command("Redo").execute();
 410                             break;
 411                         case VK_Z:
 412                             frame->editor()->command("Undo").execute();
 413                             break;
 414                         default:
 415                             // catch combination AltGr+key or Ctrl+Alt+key
 416                             if (kevent->type() != PlatformKeyboardEvent::KeyDown && !kevent->text().isEmpty()) {
 417                                 frame->editor()->insertText(kevent->text(), event);
 418                                 break;
 419                             }
 420                             return;
 421                     }
 422                 } else return;
 423         }
 424     } else {
 425         switch (kevent->windowsVirtualKeyCode()) {
 426             case VK_UP:
 427                 frame->editor()->command("MoveUp").execute();
 428                 break;
 429             case VK_DOWN:
 430                 frame->editor()->command("MoveDown").execute();
 431                 break;
 432             case VK_PRIOR:  // PageUp
 433                 frame->editor()->command("MovePageUp").execute();
 434                 break;
 435             case VK_NEXT:  // PageDown
 436                 frame->editor()->command("MovePageDown").execute();
 437                 break;
 438             case VK_HOME:
 439                 if (kevent->ctrlKey())
 440                     frame->editor()->command("MoveToBeginningOfDocument").execute();
 441                 break;
 442             case VK_END:
 443                 if (kevent->ctrlKey())
 444                     frame->editor()->command("MoveToEndOfDocument").execute();
 445                 break;
 446             default:
 447                 if (kevent->ctrlKey()) {
 448                     switch (kevent->windowsVirtualKeyCode()) {
 449                         case VK_A:
 450                             frame->editor()->command("SelectAll").execute();
 451                             break;
 452                         case VK_C: case VK_X:
 453                             frame->editor()->command("Copy").execute();
 454                             break;
 455                         default:
 456                             return;
 457                     }
 458                 } else return;
 459         }
 460     }
 461     event->setDefaultHandled();
 462 }
 463
 464 void EditorClientQt::handleInputMethodKeydown(KeyboardEvent*)
 465 {
 466 }
 467
 468 EditorClientQt::EditorClientQt(QWebPage* page)
 469     : m_page(page), m_editing(false), m_inUndoRedo(false)
 470 {
 471 }
 472
 473 void EditorClientQt::textFieldDidBeginEditing(Element*)
 474 {
 475     m_editing = true;
 476 }
 477
 478 void EditorClientQt::textFieldDidEndEditing(Element*)
 479 {
 480     m_editing = false;
 481 }
 482
 483 void EditorClientQt::textDidChangeInTextField(Element*)
 484 {
 485 }
 486
 487 bool EditorClientQt::doTextFieldCommandFromEvent(Element*, KeyboardEvent*)
 488 {
 489     return false;
 490 }
 491
 492 void EditorClientQt::textWillBeDeletedInTextField(Element*)
 493 {
 494 }
 495
 496 void EditorClientQt::textDidChangeInTextArea(Element*)
 497 {
 498 }
 499
 500 void EditorClientQt::ignoreWordInSpellDocument(const String&)
 501 {
 502     notImplemented();
 503 }
 504
 505 void EditorClientQt::learnWord(const String&)
 506 {
 507     notImplemented();
 508 }
 509
 510 void EditorClientQt::checkSpellingOfString(const UChar*, int, int*, int*)
 511 {
 512     notImplemented();
 513 }
 514
 515 void EditorClientQt::checkGrammarOfString(const UChar*, int, Vector<GrammarDetail>&, int*, int*)
 516 {
 517     notImplemented();
 518 }
 519
 520 void EditorClientQt::updateSpellingUIWithGrammarString(const String&, const GrammarDetail&)
 521 {
 522     notImplemented();
 523 }
 524
 525 void EditorClientQt::updateSpellingUIWithMisspelledWord(const String&)
 526 {
 527     notImplemented();
 528 }
 529
 530 void EditorClientQt::showSpellingUI(bool)
 531 {
 532     notImplemented();
 533 }
 534
 535 bool EditorClientQt::spellingUIIsShowing()
 536 {
 537     notImplemented();
 538     return false;
 539 }
 540
 541 void EditorClientQt::getGuessesForWord(const String&, Vector<String>&)
 542 {
 543     notImplemented();
 544 }
 545
 546 bool EditorClientQt::isEditing() const
 547 {
 548     return m_editing;
 549 }
 550
 551 void EditorClientQt::setInputMethodState(bool active)
 552 {
 553     QWidget *view = m_page->view();
 554     if (view) {
 555         view->setAttribute(Qt::WA_InputMethodEnabled, active);
 556         emit m_page->microFocusChanged();
 557     }
 558 }
 559
 560 }
 561
 562 // vim: ts=4 sw=4 et