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| 1 /* | |
| 2 * Copyright (C) 2006, 2007 Apple, Inc. All rights reserved. | |
| 3 * Copyright (C) 2009 Google, Inc. All rights reserved. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions | |
| 7 * are met: | |
| 8 * 1. Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer in the | |
| 12 * documentation and/or other materials provided with the distribution. | |
| 13 * | |
| 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
| 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 25 */ | |
| 26 | |
| 27 #include "config.h" | |
| 28 #include "EditorClientImpl.h" | |
| 29 | |
| 30 #include "Document.h" | |
| 31 #include "EditCommand.h" | |
| 32 #include "Editor.h" | |
| 33 #include "EventHandler.h" | |
| 34 #include "EventNames.h" | |
| 35 #include "Frame.h" | |
| 36 #include "HTMLInputElement.h" | |
| 37 #include "HTMLNames.h" | |
| 38 #include "KeyboardCodes.h" | |
| 39 #include "KeyboardEvent.h" | |
| 40 #include "PlatformKeyboardEvent.h" | |
| 41 #include "PlatformString.h" | |
| 42 #include "RenderObject.h" | |
| 43 | |
| 44 #include "DOMUtilitiesPrivate.h" | |
| 45 #include "WebEditingAction.h" | |
| 46 #include "WebFrameImpl.h" | |
| 47 #include "WebKit.h" | |
| 48 #include "WebNode.h" | |
| 49 #include "WebPasswordAutocompleteListener.h" | |
| 50 #include "WebRange.h" | |
| 51 #include "WebTextAffinity.h" | |
| 52 #include "WebViewClient.h" | |
| 53 #include "WebViewImpl.h" | |
| 54 | |
| 55 using namespace WebCore; | |
| 56 | |
| 57 namespace WebKit { | |
| 58 | |
| 59 // Arbitrary depth limit for the undo stack, to keep it from using | |
| 60 // unbounded memory. This is the maximum number of distinct undoable | |
| 61 // actions -- unbroken stretches of typed characters are coalesced | |
| 62 // into a single action. | |
| 63 static const size_t maximumUndoStackDepth = 1000; | |
| 64 | |
| 65 // The size above which we stop triggering autofill for an input text field | |
| 66 // (so to avoid sending long strings through IPC). | |
| 67 static const size_t maximumTextSizeForAutofill = 1000; | |
| 68 | |
| 69 EditorClientImpl::EditorClientImpl(WebViewImpl* webview) | |
| 70 : m_webView(webview) | |
| 71 , m_inRedo(false) | |
| 72 , m_backspaceOrDeletePressed(false) | |
| 73 , m_spellCheckThisFieldStatus(SpellCheckAutomatic) | |
| 74 , m_autofillTimer(this, &EditorClientImpl::doAutofill) | |
| 75 { | |
| 76 } | |
| 77 | |
| 78 EditorClientImpl::~EditorClientImpl() | |
| 79 { | |
| 80 } | |
| 81 | |
| 82 void EditorClientImpl::pageDestroyed() | |
| 83 { | |
| 84 // Our lifetime is bound to the WebViewImpl. | |
| 85 } | |
| 86 | |
| 87 bool EditorClientImpl::shouldShowDeleteInterface(HTMLElement* elem) | |
| 88 { | |
| 89 // Normally, we don't care to show WebCore's deletion UI, so we only enable | |
| 90 // it if in testing mode and the test specifically requests it by using this | |
| 91 // magic class name. | |
| 92 return WebKit::layoutTestMode() | |
| 93 && elem->getAttribute(HTMLNames::classAttr) == "needsDeletionUI"; | |
| 94 } | |
| 95 | |
| 96 bool EditorClientImpl::smartInsertDeleteEnabled() | |
| 97 { | |
| 98 if (m_webView->client()) | |
| 99 return m_webView->client()->isSmartInsertDeleteEnabled(); | |
| 100 return true; | |
| 101 } | |
| 102 | |
| 103 bool EditorClientImpl::isSelectTrailingWhitespaceEnabled() | |
| 104 { | |
| 105 if (m_webView->client()) | |
| 106 return m_webView->client()->isSelectTrailingWhitespaceEnabled(); | |
| 107 #if PLATFORM(WIN_OS) | |
| 108 return true; | |
| 109 #else | |
| 110 return false; | |
| 111 #endif | |
| 112 } | |
| 113 | |
| 114 bool EditorClientImpl::shouldSpellcheckByDefault() | |
| 115 { | |
| 116 // Spellcheck should be enabled for all editable areas (such as textareas, | |
| 117 // contentEditable regions, and designMode docs), except text inputs. | |
| 118 const Frame* frame = m_webView->focusedWebCoreFrame(); | |
| 119 if (!frame) | |
| 120 return false; | |
| 121 const Editor* editor = frame->editor(); | |
| 122 if (!editor) | |
| 123 return false; | |
| 124 if (editor->spellCheckingEnabledInFocusedNode()) | |
| 125 return true; | |
| 126 const Document* document = frame->document(); | |
| 127 if (!document) | |
| 128 return false; | |
| 129 const Node* node = document->focusedNode(); | |
| 130 // If |node| is null, we default to allowing spellchecking. This is done in | |
| 131 // order to mitigate the issue when the user clicks outside the textbox, as a | |
| 132 // result of which |node| becomes null, resulting in all the spell check | |
| 133 // markers being deleted. Also, the Frame will decide not to do spellchecking | |
| 134 // if the user can't edit - so returning true here will not cause any problems | |
| 135 // to the Frame's behavior. | |
| 136 if (!node) | |
| 137 return true; | |
| 138 const RenderObject* renderer = node->renderer(); | |
| 139 if (!renderer) | |
| 140 return false; | |
| 141 | |
| 142 return !renderer->isTextField(); | |
| 143 } | |
| 144 | |
| 145 bool EditorClientImpl::isContinuousSpellCheckingEnabled() | |
| 146 { | |
| 147 if (m_spellCheckThisFieldStatus == SpellCheckForcedOff) | |
| 148 return false; | |
| 149 if (m_spellCheckThisFieldStatus == SpellCheckForcedOn) | |
| 150 return true; | |
| 151 return shouldSpellcheckByDefault(); | |
| 152 } | |
| 153 | |
| 154 void EditorClientImpl::toggleContinuousSpellChecking() | |
| 155 { | |
| 156 if (isContinuousSpellCheckingEnabled()) | |
| 157 m_spellCheckThisFieldStatus = SpellCheckForcedOff; | |
| 158 else | |
| 159 m_spellCheckThisFieldStatus = SpellCheckForcedOn; | |
| 160 } | |
| 161 | |
| 162 bool EditorClientImpl::isGrammarCheckingEnabled() | |
| 163 { | |
| 164 return false; | |
| 165 } | |
| 166 | |
| 167 void EditorClientImpl::toggleGrammarChecking() | |
| 168 { | |
| 169 notImplemented(); | |
| 170 } | |
| 171 | |
| 172 int EditorClientImpl::spellCheckerDocumentTag() | |
| 173 { | |
| 174 ASSERT_NOT_REACHED(); | |
| 175 return 0; | |
| 176 } | |
| 177 | |
| 178 bool EditorClientImpl::isEditable() | |
| 179 { | |
| 180 return false; | |
| 181 } | |
| 182 | |
| 183 bool EditorClientImpl::shouldBeginEditing(Range* range) | |
| 184 { | |
| 185 if (m_webView->client()) | |
| 186 return m_webView->client()->shouldBeginEditing(WebRange(range)); | |
| 187 return true; | |
| 188 } | |
| 189 | |
| 190 bool EditorClientImpl::shouldEndEditing(Range* range) | |
| 191 { | |
| 192 if (m_webView->client()) | |
| 193 return m_webView->client()->shouldEndEditing(WebRange(range)); | |
| 194 return true; | |
| 195 } | |
| 196 | |
| 197 bool EditorClientImpl::shouldInsertNode(Node* node, | |
| 198 Range* range, | |
| 199 EditorInsertAction action) | |
| 200 { | |
| 201 if (m_webView->client()) { | |
| 202 return m_webView->client()->shouldInsertNode(WebNode(node), | |
| 203 WebRange(range), | |
| 204 static_cast<WebEditingAction>(action)); | |
| 205 } | |
| 206 return true; | |
| 207 } | |
| 208 | |
| 209 bool EditorClientImpl::shouldInsertText(const String& text, | |
| 210 Range* range, | |
| 211 EditorInsertAction action) | |
| 212 { | |
| 213 if (m_webView->client()) { | |
| 214 return m_webView->client()->shouldInsertText(WebString(text), | |
| 215 WebRange(range), | |
| 216 static_cast<WebEditingAction>(action)); | |
| 217 } | |
| 218 return true; | |
| 219 } | |
| 220 | |
| 221 | |
| 222 bool EditorClientImpl::shouldDeleteRange(Range* range) | |
| 223 { | |
| 224 if (m_webView->client()) | |
| 225 return m_webView->client()->shouldDeleteRange(WebRange(range)); | |
| 226 return true; | |
| 227 } | |
| 228 | |
| 229 bool EditorClientImpl::shouldChangeSelectedRange(Range* fromRange, | |
| 230 Range* toRange, | |
| 231 EAffinity affinity, | |
| 232 bool stillSelecting) | |
| 233 { | |
| 234 if (m_webView->client()) { | |
| 235 return m_webView->client()->shouldChangeSelectedRange(WebRange(fromRange), | |
| 236 WebRange(toRange), | |
| 237 static_cast<WebTextAffinity>(affinity), | |
| 238 stillSelecting); | |
| 239 } | |
| 240 return true; | |
| 241 } | |
| 242 | |
| 243 bool EditorClientImpl::shouldApplyStyle(CSSStyleDeclaration* style, | |
| 244 Range* range) | |
| 245 { | |
| 246 if (m_webView->client()) { | |
| 247 // FIXME: Pass a reference to the CSSStyleDeclaration somehow. | |
| 248 return m_webView->client()->shouldApplyStyle(WebString(), | |
| 249 WebRange(range)); | |
| 250 } | |
| 251 return true; | |
| 252 } | |
| 253 | |
| 254 bool EditorClientImpl::shouldMoveRangeAfterDelete(Range* range, | |
| 255 Range* rangeToBeReplaced) | |
| 256 { | |
| 257 return true; | |
| 258 } | |
| 259 | |
| 260 void EditorClientImpl::didBeginEditing() | |
| 261 { | |
| 262 if (m_webView->client()) | |
| 263 m_webView->client()->didBeginEditing(); | |
| 264 } | |
| 265 | |
| 266 void EditorClientImpl::respondToChangedSelection() | |
| 267 { | |
| 268 if (m_webView->client()) { | |
| 269 Frame* frame = m_webView->focusedWebCoreFrame(); | |
| 270 if (frame) | |
| 271 m_webView->client()->didChangeSelection(!frame->selection()->isRange()); | |
| 272 } | |
| 273 } | |
| 274 | |
| 275 void EditorClientImpl::respondToChangedContents() | |
| 276 { | |
| 277 if (m_webView->client()) | |
| 278 m_webView->client()->didChangeContents(); | |
| 279 } | |
| 280 | |
| 281 void EditorClientImpl::didEndEditing() | |
| 282 { | |
| 283 if (m_webView->client()) | |
| 284 m_webView->client()->didEndEditing(); | |
| 285 } | |
| 286 | |
| 287 void EditorClientImpl::didWriteSelectionToPasteboard() | |
| 288 { | |
| 289 } | |
| 290 | |
| 291 void EditorClientImpl::didSetSelectionTypesForPasteboard() | |
| 292 { | |
| 293 } | |
| 294 | |
| 295 void EditorClientImpl::registerCommandForUndo(PassRefPtr<EditCommand> command) | |
| 296 { | |
| 297 if (m_undoStack.size() == maximumUndoStackDepth) | |
| 298 m_undoStack.removeFirst(); // drop oldest item off the far end | |
| 299 if (!m_inRedo) | |
| 300 m_redoStack.clear(); | |
| 301 m_undoStack.append(command); | |
| 302 } | |
| 303 | |
| 304 void EditorClientImpl::registerCommandForRedo(PassRefPtr<EditCommand> command) | |
| 305 { | |
| 306 m_redoStack.append(command); | |
| 307 } | |
| 308 | |
| 309 void EditorClientImpl::clearUndoRedoOperations() | |
| 310 { | |
| 311 m_undoStack.clear(); | |
| 312 m_redoStack.clear(); | |
| 313 } | |
| 314 | |
| 315 bool EditorClientImpl::canUndo() const | |
| 316 { | |
| 317 return !m_undoStack.isEmpty(); | |
| 318 } | |
| 319 | |
| 320 bool EditorClientImpl::canRedo() const | |
| 321 { | |
| 322 return !m_redoStack.isEmpty(); | |
| 323 } | |
| 324 | |
| 325 void EditorClientImpl::undo() | |
| 326 { | |
| 327 if (canUndo()) { | |
| 328 EditCommandStack::iterator back = --m_undoStack.end(); | |
| 329 RefPtr<EditCommand> command(*back); | |
| 330 m_undoStack.remove(back); | |
| 331 command->unapply(); | |
| 332 // unapply will call us back to push this command onto the redo stack. | |
| 333 } | |
| 334 } | |
| 335 | |
| 336 void EditorClientImpl::redo() | |
| 337 { | |
| 338 if (canRedo()) { | |
| 339 EditCommandStack::iterator back = --m_redoStack.end(); | |
| 340 RefPtr<EditCommand> command(*back); | |
| 341 m_redoStack.remove(back); | |
| 342 | |
| 343 ASSERT(!m_inRedo); | |
| 344 m_inRedo = true; | |
| 345 command->reapply(); | |
| 346 // reapply will call us back to push this command onto the undo stack. | |
| 347 m_inRedo = false; | |
| 348 } | |
| 349 } | |
| 350 | |
| 351 // | |
| 352 // The below code was adapted from the WebKit file webview.cpp | |
| 353 // | |
| 354 | |
| 355 static const unsigned CtrlKey = 1 << 0; | |
| 356 static const unsigned AltKey = 1 << 1; | |
| 357 static const unsigned ShiftKey = 1 << 2; | |
| 358 static const unsigned MetaKey = 1 << 3; | |
| 359 #if PLATFORM(DARWIN) | |
| 360 // Aliases for the generic key defintions to make kbd shortcuts definitions more | |
| 361 // readable on OS X. | |
| 362 static const unsigned OptionKey = AltKey; | |
| 363 | |
| 364 // Do not use this constant for anything but cursor movement commands. Keys | |
| 365 // with cmd set have their |isSystemKey| bit set, so chances are the shortcut | |
| 366 // will not be executed. Another, less important, reason is that shortcuts | |
| 367 // defined in the renderer do not blink the menu item that they triggered. See | |
| 368 // http://crbug.com/25856 and the bugs linked from there for details. | |
| 369 static const unsigned CommandKey = MetaKey; | |
| 370 #endif | |
| 371 | |
| 372 // Keys with special meaning. These will be delegated to the editor using | |
| 373 // the execCommand() method | |
| 374 struct KeyDownEntry { | |
| 375 unsigned virtualKey; | |
| 376 unsigned modifiers; | |
| 377 const char* name; | |
| 378 }; | |
| 379 | |
| 380 struct KeyPressEntry { | |
| 381 unsigned charCode; | |
| 382 unsigned modifiers; | |
| 383 const char* name; | |
| 384 }; | |
| 385 | |
| 386 static const KeyDownEntry keyDownEntries[] = { | |
| 387 { VKEY_LEFT, 0, "MoveLeft" }, | |
| 388 { VKEY_LEFT, ShiftKey, "MoveLeftAndModifySelection" }, | |
| 389 #if PLATFORM(DARWIN) | |
| 390 { VKEY_LEFT, OptionKey, "MoveWordLeft" }, | |
| 391 { VKEY_LEFT, OptionKey | ShiftKey, | |
| 392 "MoveWordLeftAndModifySelection" }, | |
| 393 #else | |
| 394 { VKEY_LEFT, CtrlKey, "MoveWordLeft" }, | |
| 395 { VKEY_LEFT, CtrlKey | ShiftKey, | |
| 396 "MoveWordLeftAndModifySelection" }, | |
| 397 #endif | |
| 398 { VKEY_RIGHT, 0, "MoveRight" }, | |
| 399 { VKEY_RIGHT, ShiftKey, "MoveRightAndModifySelection" }, | |
| 400 #if PLATFORM(DARWIN) | |
| 401 { VKEY_RIGHT, OptionKey, "MoveWordRight" }, | |
| 402 { VKEY_RIGHT, OptionKey | ShiftKey, | |
| 403 "MoveWordRightAndModifySelection" }, | |
| 404 #else | |
| 405 { VKEY_RIGHT, CtrlKey, "MoveWordRight" }, | |
| 406 { VKEY_RIGHT, CtrlKey | ShiftKey, | |
| 407 "MoveWordRightAndModifySelection" }, | |
| 408 #endif | |
| 409 { VKEY_UP, 0, "MoveUp" }, | |
| 410 { VKEY_UP, ShiftKey, "MoveUpAndModifySelection" }, | |
| 411 { VKEY_PRIOR, ShiftKey, "MovePageUpAndModifySelection" }, | |
| 412 { VKEY_DOWN, 0, "MoveDown" }, | |
| 413 { VKEY_DOWN, ShiftKey, "MoveDownAndModifySelection" }, | |
| 414 { VKEY_NEXT, ShiftKey, "MovePageDownAndModifySelection" }, | |
| 415 { VKEY_PRIOR, 0, "MovePageUp" }, | |
| 416 { VKEY_NEXT, 0, "MovePageDown" }, | |
| 417 { VKEY_HOME, 0, "MoveToBeginningOfLine" }, | |
| 418 { VKEY_HOME, ShiftKey, | |
| 419 "MoveToBeginningOfLineAndModifySelection" }, | |
| 420 #if PLATFORM(DARWIN) | |
| 421 { VKEY_LEFT, CommandKey, "MoveToBeginningOfLine" }, | |
| 422 { VKEY_LEFT, CommandKey | ShiftKey, | |
| 423 "MoveToBeginningOfLineAndModifySelection" }, | |
| 424 #endif | |
| 425 #if PLATFORM(DARWIN) | |
| 426 { VKEY_UP, CommandKey, "MoveToBeginningOfDocument" }, | |
| 427 { VKEY_UP, CommandKey | ShiftKey, | |
| 428 "MoveToBeginningOfDocumentAndModifySelection" }, | |
| 429 #else | |
| 430 { VKEY_HOME, CtrlKey, "MoveToBeginningOfDocument" }, | |
| 431 { VKEY_HOME, CtrlKey | ShiftKey, | |
| 432 "MoveToBeginningOfDocumentAndModifySelection" }, | |
| 433 #endif | |
| 434 { VKEY_END, 0, "MoveToEndOfLine" }, | |
| 435 { VKEY_END, ShiftKey, "MoveToEndOfLineAndModifySelection" }, | |
| 436 #if PLATFORM(DARWIN) | |
| 437 { VKEY_DOWN, CommandKey, "MoveToEndOfDocument" }, | |
| 438 { VKEY_DOWN, CommandKey | ShiftKey, | |
| 439 "MoveToEndOfDocumentAndModifySelection" }, | |
| 440 #else | |
| 441 { VKEY_END, CtrlKey, "MoveToEndOfDocument" }, | |
| 442 { VKEY_END, CtrlKey | ShiftKey, | |
| 443 "MoveToEndOfDocumentAndModifySelection" }, | |
| 444 #endif | |
| 445 #if PLATFORM(DARWIN) | |
| 446 { VKEY_RIGHT, CommandKey, "MoveToEndOfLine" }, | |
| 447 { VKEY_RIGHT, CommandKey | ShiftKey, | |
| 448 "MoveToEndOfLineAndModifySelection" }, | |
| 449 #endif | |
| 450 { VKEY_BACK, 0, "DeleteBackward" }, | |
| 451 { VKEY_BACK, ShiftKey, "DeleteBackward" }, | |
| 452 { VKEY_DELETE, 0, "DeleteForward" }, | |
| 453 #if PLATFORM(DARWIN) | |
| 454 { VKEY_BACK, OptionKey, "DeleteWordBackward" }, | |
| 455 { VKEY_DELETE, OptionKey, "DeleteWordForward" }, | |
| 456 #else | |
| 457 { VKEY_BACK, CtrlKey, "DeleteWordBackward" }, | |
| 458 { VKEY_DELETE, CtrlKey, "DeleteWordForward" }, | |
| 459 #endif | |
| 460 { 'B', CtrlKey, "ToggleBold" }, | |
| 461 { 'I', CtrlKey, "ToggleItalic" }, | |
| 462 { 'U', CtrlKey, "ToggleUnderline" }, | |
| 463 { VKEY_ESCAPE, 0, "Cancel" }, | |
| 464 { VKEY_OEM_PERIOD, CtrlKey, "Cancel" }, | |
| 465 { VKEY_TAB, 0, "InsertTab" }, | |
| 466 { VKEY_TAB, ShiftKey, "InsertBacktab" }, | |
| 467 { VKEY_RETURN, 0, "InsertNewline" }, | |
| 468 { VKEY_RETURN, CtrlKey, "InsertNewline" }, | |
| 469 { VKEY_RETURN, AltKey, "InsertNewline" }, | |
| 470 { VKEY_RETURN, AltKey | ShiftKey, "InsertNewline" }, | |
| 471 { VKEY_RETURN, ShiftKey, "InsertLineBreak" }, | |
| 472 { VKEY_INSERT, CtrlKey, "Copy" }, | |
| 473 { VKEY_INSERT, ShiftKey, "Paste" }, | |
| 474 { VKEY_DELETE, ShiftKey, "Cut" }, | |
| 475 #if !PLATFORM(DARWIN) | |
| 476 // On OS X, we pipe these back to the browser, so that it can do menu item | |
| 477 // blinking. | |
| 478 { 'C', CtrlKey, "Copy" }, | |
| 479 { 'V', CtrlKey, "Paste" }, | |
| 480 { 'V', CtrlKey | ShiftKey, "PasteAndMatchStyle" }, | |
| 481 { 'X', CtrlKey, "Cut" }, | |
| 482 { 'A', CtrlKey, "SelectAll" }, | |
| 483 { 'Z', CtrlKey, "Undo" }, | |
| 484 { 'Z', CtrlKey | ShiftKey, "Redo" }, | |
| 485 { 'Y', CtrlKey, "Redo" }, | |
| 486 #endif | |
| 487 }; | |
| 488 | |
| 489 static const KeyPressEntry keyPressEntries[] = { | |
| 490 { '\t', 0, "InsertTab" }, | |
| 491 { '\t', ShiftKey, "InsertBacktab" }, | |
| 492 { '\r', 0, "InsertNewline" }, | |
| 493 { '\r', CtrlKey, "InsertNewline" }, | |
| 494 { '\r', ShiftKey, "InsertLineBreak" }, | |
| 495 { '\r', AltKey, "InsertNewline" }, | |
| 496 { '\r', AltKey | ShiftKey, "InsertNewline" }, | |
| 497 }; | |
| 498 | |
| 499 const char* EditorClientImpl::interpretKeyEvent(const KeyboardEvent* evt) | |
| 500 { | |
| 501 const PlatformKeyboardEvent* keyEvent = evt->keyEvent(); | |
| 502 if (!keyEvent) | |
| 503 return ""; | |
| 504 | |
| 505 static HashMap<int, const char*>* keyDownCommandsMap = 0; | |
| 506 static HashMap<int, const char*>* keyPressCommandsMap = 0; | |
| 507 | |
| 508 if (!keyDownCommandsMap) { | |
| 509 keyDownCommandsMap = new HashMap<int, const char*>; | |
| 510 keyPressCommandsMap = new HashMap<int, const char*>; | |
| 511 | |
| 512 for (unsigned i = 0; i < arraysize(keyDownEntries); i++) { | |
| 513 keyDownCommandsMap->set(keyDownEntries[i].modifiers << 16 | keyDownEntries[i].virtualKey, | |
| 514 keyDownEntries[i].name); | |
| 515 } | |
| 516 | |
| 517 for (unsigned i = 0; i < arraysize(keyPressEntries); i++) { | |
| 518 keyPressCommandsMap->set(keyPressEntries[i].modifiers << 16 | keyPressEntries[i].charCode, | |
| 519 keyPressEntries[i].name); | |
| 520 } | |
| 521 } | |
| 522 | |
| 523 unsigned modifiers = 0; | |
| 524 if (keyEvent->shiftKey()) | |
| 525 modifiers |= ShiftKey; | |
| 526 if (keyEvent->altKey()) | |
| 527 modifiers |= AltKey; | |
| 528 if (keyEvent->ctrlKey()) | |
| 529 modifiers |= CtrlKey; | |
| 530 if (keyEvent->metaKey()) | |
| 531 modifiers |= MetaKey; | |
| 532 | |
| 533 if (keyEvent->type() == PlatformKeyboardEvent::RawKeyDown) { | |
| 534 int mapKey = modifiers << 16 | evt->keyCode(); | |
| 535 return mapKey ? keyDownCommandsMap->get(mapKey) : 0; | |
| 536 } | |
| 537 | |
| 538 int mapKey = modifiers << 16 | evt->charCode(); | |
| 539 return mapKey ? keyPressCommandsMap->get(mapKey) : 0; | |
| 540 } | |
| 541 | |
| 542 bool EditorClientImpl::handleEditingKeyboardEvent(KeyboardEvent* evt) | |
| 543 { | |
| 544 const PlatformKeyboardEvent* keyEvent = evt->keyEvent(); | |
| 545 // do not treat this as text input if it's a system key event | |
| 546 if (!keyEvent || keyEvent->isSystemKey()) | |
| 547 return false; | |
| 548 | |
| 549 Frame* frame = evt->target()->toNode()->document()->frame(); | |
| 550 if (!frame) | |
| 551 return false; | |
| 552 | |
| 553 String commandName = interpretKeyEvent(evt); | |
| 554 Editor::Command command = frame->editor()->command(commandName); | |
| 555 | |
| 556 if (keyEvent->type() == PlatformKeyboardEvent::RawKeyDown) { | |
| 557 // WebKit doesn't have enough information about mode to decide how | |
| 558 // commands that just insert text if executed via Editor should be treated, | |
| 559 // so we leave it upon WebCore to either handle them immediately | |
| 560 // (e.g. Tab that changes focus) or let a keypress event be generated | |
| 561 // (e.g. Tab that inserts a Tab character, or Enter). | |
| 562 if (command.isTextInsertion() || commandName.isEmpty()) | |
| 563 return false; | |
| 564 if (command.execute(evt)) { | |
| 565 if (m_webView->client()) | |
| 566 m_webView->client()->didExecuteCommand(WebString(commandName)); | |
| 567 return true; | |
| 568 } | |
| 569 return false; | |
| 570 } | |
| 571 | |
| 572 if (command.execute(evt)) { | |
| 573 if (m_webView->client()) | |
| 574 m_webView->client()->didExecuteCommand(WebString(commandName)); | |
| 575 return true; | |
| 576 } | |
| 577 | |
| 578 // Here we need to filter key events. | |
| 579 // On Gtk/Linux, it emits key events with ASCII text and ctrl on for ctrl-<x>. | |
| 580 // In Webkit, EditorClient::handleKeyboardEvent in | |
| 581 // WebKit/gtk/WebCoreSupport/EditorClientGtk.cpp drop such events. | |
| 582 // On Mac, it emits key events with ASCII text and meta on for Command-<x>. | |
| 583 // These key events should not emit text insert event. | |
| 584 // Alt key would be used to insert alternative character, so we should let | |
| 585 // through. Also note that Ctrl-Alt combination equals to AltGr key which is | |
| 586 // also used to insert alternative character. | |
| 587 // http://code.google.com/p/chromium/issues/detail?id=10846 | |
| 588 // Windows sets both alt and meta are on when "Alt" key pressed. | |
| 589 // http://code.google.com/p/chromium/issues/detail?id=2215 | |
| 590 // Also, we should not rely on an assumption that keyboards don't | |
| 591 // send ASCII characters when pressing a control key on Windows, | |
| 592 // which may be configured to do it so by user. | |
| 593 // See also http://en.wikipedia.org/wiki/Keyboard_Layout | |
| 594 // FIXME(ukai): investigate more detail for various keyboard layout. | |
| 595 if (evt->keyEvent()->text().length() == 1) { | |
| 596 UChar ch = evt->keyEvent()->text()[0U]; | |
| 597 | |
| 598 // Don't insert null or control characters as they can result in | |
| 599 // unexpected behaviour | |
| 600 if (ch < ' ') | |
| 601 return false; | |
| 602 #if !PLATFORM(WIN_OS) | |
| 603 // Don't insert ASCII character if ctrl w/o alt or meta is on. | |
| 604 // On Mac, we should ignore events when meta is on (Command-<x>). | |
| 605 if (ch < 0x80) { | |
| 606 if (evt->keyEvent()->ctrlKey() && !evt->keyEvent()->altKey()) | |
| 607 return false; | |
| 608 #if PLATFORM(DARWIN) | |
| 609 if (evt->keyEvent()->metaKey()) | |
| 610 return false; | |
| 611 #endif | |
| 612 } | |
| 613 #endif | |
| 614 } | |
| 615 | |
| 616 if (!frame->editor()->canEdit()) | |
| 617 return false; | |
| 618 | |
| 619 return frame->editor()->insertText(evt->keyEvent()->text(), evt); | |
| 620 } | |
| 621 | |
| 622 void EditorClientImpl::handleKeyboardEvent(KeyboardEvent* evt) | |
| 623 { | |
| 624 if (evt->keyCode() == VKEY_DOWN | |
| 625 || evt->keyCode() == VKEY_UP) { | |
| 626 ASSERT(evt->target()->toNode()); | |
| 627 showFormAutofillForNode(evt->target()->toNode()); | |
| 628 } | |
| 629 | |
| 630 // Give the embedder a chance to handle the keyboard event. | |
| 631 if ((m_webView->client() | |
| 632 && m_webView->client()->handleCurrentKeyboardEvent()) | |
| 633 || handleEditingKeyboardEvent(evt)) | |
| 634 evt->setDefaultHandled(); | |
| 635 } | |
| 636 | |
| 637 void EditorClientImpl::handleInputMethodKeydown(KeyboardEvent* keyEvent) | |
| 638 { | |
| 639 // We handle IME within chrome. | |
| 640 } | |
| 641 | |
| 642 void EditorClientImpl::textFieldDidBeginEditing(Element*) | |
| 643 { | |
| 644 } | |
| 645 | |
| 646 void EditorClientImpl::textFieldDidEndEditing(Element* element) | |
| 647 { | |
| 648 // Notification that focus was lost. Be careful with this, it's also sent | |
| 649 // when the page is being closed. | |
| 650 | |
| 651 // Cancel any pending DoAutofill call. | |
| 652 m_autofillArgs.clear(); | |
| 653 m_autofillTimer.stop(); | |
| 654 | |
| 655 // Hide any showing popup. | |
| 656 m_webView->hideAutoCompletePopup(); | |
| 657 | |
| 658 if (!m_webView->client()) | |
| 659 return; // The page is getting closed, don't fill the password. | |
| 660 | |
| 661 // Notify any password-listener of the focus change. | |
| 662 HTMLInputElement* inputElement = WebKit::toHTMLInputElement(element); | |
| 663 if (!inputElement) | |
| 664 return; | |
| 665 | |
| 666 WebFrameImpl* webframe = WebFrameImpl::fromFrame(inputElement->document()->frame()); | |
| 667 if (!webframe) | |
| 668 return; | |
| 669 | |
| 670 WebPasswordAutocompleteListener* listener = webframe->getPasswordListener(inputElement); | |
| 671 if (!listener) | |
| 672 return; | |
| 673 | |
| 674 listener->didBlurInputElement(inputElement->value()); | |
| 675 } | |
| 676 | |
| 677 void EditorClientImpl::textDidChangeInTextField(Element* element) | |
| 678 { | |
| 679 ASSERT(element->hasLocalName(HTMLNames::inputTag)); | |
| 680 // Note that we only show the autofill popup in this case if the caret is at | |
| 681 // the end. This matches FireFox and Safari but not IE. | |
| 682 autofill(static_cast<HTMLInputElement*>(element), false, false, | |
| 683 true); | |
| 684 } | |
| 685 | |
| 686 bool EditorClientImpl::showFormAutofillForNode(Node* node) | |
| 687 { | |
| 688 HTMLInputElement* inputElement = WebKit::toHTMLInputElement(node); | |
| 689 if (inputElement) | |
| 690 return autofill(inputElement, true, true, false); | |
| 691 return false; | |
| 692 } | |
| 693 | |
| 694 bool EditorClientImpl::autofill(HTMLInputElement* inputElement, | |
| 695 bool autofillFormOnly, | |
| 696 bool autofillOnEmptyValue, | |
| 697 bool requireCaretAtEnd) | |
| 698 { | |
| 699 // Cancel any pending DoAutofill call. | |
| 700 m_autofillArgs.clear(); | |
| 701 m_autofillTimer.stop(); | |
| 702 | |
| 703 // Let's try to trigger autofill for that field, if applicable. | |
| 704 if (!inputElement->isEnabledFormControl() || !inputElement->isTextField() | |
| 705 || inputElement->isPasswordField() | |
| 706 || !inputElement->autoComplete()) | |
| 707 return false; | |
| 708 | |
| 709 WebString name = WebKit::nameOfInputElement(inputElement); | |
| 710 if (name.isEmpty()) // If the field has no name, then we won't have values. | |
| 711 return false; | |
| 712 | |
| 713 // Don't attempt to autofill with values that are too large. | |
| 714 if (inputElement->value().length() > maximumTextSizeForAutofill) | |
| 715 return false; | |
| 716 | |
| 717 m_autofillArgs = new AutofillArgs(); | |
| 718 m_autofillArgs->inputElement = inputElement; | |
| 719 m_autofillArgs->autofillFormOnly = autofillFormOnly; | |
| 720 m_autofillArgs->autofillOnEmptyValue = autofillOnEmptyValue; | |
| 721 m_autofillArgs->requireCaretAtEnd = requireCaretAtEnd; | |
| 722 m_autofillArgs->backspaceOrDeletePressed = m_backspaceOrDeletePressed; | |
| 723 | |
| 724 if (!requireCaretAtEnd) | |
| 725 doAutofill(0); | |
| 726 else { | |
| 727 // We post a task for doing the autofill as the caret position is not set | |
| 728 // properly at this point (http://bugs.webkit.org/show_bug.cgi?id=16976) | |
| 729 // and we need it to determine whether or not to trigger autofill. | |
| 730 m_autofillTimer.startOneShot(0.0); | |
| 731 } | |
| 732 return true; | |
| 733 } | |
| 734 | |
| 735 void EditorClientImpl::doAutofill(Timer<EditorClientImpl>* timer) | |
| 736 { | |
| 737 OwnPtr<AutofillArgs> args(m_autofillArgs.release()); | |
| 738 HTMLInputElement* inputElement = args->inputElement.get(); | |
| 739 | |
| 740 const String& value = inputElement->value(); | |
| 741 | |
| 742 // Enforce autofill_on_empty_value and caret_at_end. | |
| 743 | |
| 744 bool isCaretAtEnd = true; | |
| 745 if (args->requireCaretAtEnd) | |
| 746 isCaretAtEnd = inputElement->selectionStart() == inputElement->selectionEnd() | |
| 747 && inputElement->selectionEnd() == static_cast<int>(value.length()); | |
| 748 | |
| 749 if ((!args->autofillOnEmptyValue && value.isEmpty()) || !isCaretAtEnd) { | |
| 750 m_webView->hideAutoCompletePopup(); | |
| 751 return; | |
| 752 } | |
| 753 | |
| 754 // First let's see if there is a password listener for that element. | |
| 755 // We won't trigger form autofill in that case, as having both behavior on | |
| 756 // a node would be confusing. | |
| 757 WebFrameImpl* webframe = WebFrameImpl::fromFrame(inputElement->document()->frame()); | |
| 758 if (!webframe) | |
| 759 return; | |
| 760 WebPasswordAutocompleteListener* listener = webframe->getPasswordListener(inputElement); | |
| 761 if (listener) { | |
| 762 if (args->autofillFormOnly) | |
| 763 return; | |
| 764 | |
| 765 listener->performInlineAutocomplete(value, | |
| 766 args->backspaceOrDeletePressed, | |
| 767 true); | |
| 768 return; | |
| 769 } | |
| 770 | |
| 771 // Then trigger form autofill. | |
| 772 WebString name = WebKit::nameOfInputElement(inputElement); | |
| 773 ASSERT(static_cast<int>(name.length()) > 0); | |
| 774 | |
| 775 if (m_webView->client()) | |
| 776 m_webView->client()->queryAutofillSuggestions(WebNode(inputElement), | |
| 777 name, WebString(value)); | |
| 778 } | |
| 779 | |
| 780 void EditorClientImpl::cancelPendingAutofill() | |
| 781 { | |
| 782 m_autofillArgs.clear(); | |
| 783 m_autofillTimer.stop(); | |
| 784 } | |
| 785 | |
| 786 void EditorClientImpl::onAutofillSuggestionAccepted(HTMLInputElement* textField) | |
| 787 { | |
| 788 WebFrameImpl* webframe = WebFrameImpl::fromFrame(textField->document()->frame()); | |
| 789 if (!webframe) | |
| 790 return; | |
| 791 | |
| 792 WebPasswordAutocompleteListener* listener = webframe->getPasswordListener(textField); | |
| 793 // Password listeners need to autocomplete other fields that depend on the | |
| 794 // input element with autofill suggestions. | |
| 795 if (listener) | |
| 796 listener->performInlineAutocomplete(textField->value(), false, false); | |
| 797 } | |
| 798 | |
| 799 bool EditorClientImpl::doTextFieldCommandFromEvent(Element* element, | |
| 800 KeyboardEvent* event) | |
| 801 { | |
| 802 // Remember if backspace was pressed for the autofill. It is not clear how to | |
| 803 // find if backspace was pressed from textFieldDidBeginEditing and | |
| 804 // textDidChangeInTextField as when these methods are called the value of the | |
| 805 // input element already contains the type character. | |
| 806 m_backspaceOrDeletePressed = event->keyCode() == VKEY_BACK || event->keyCode() == VKEY_DELETE; | |
| 807 | |
| 808 // The Mac code appears to use this method as a hook to implement special | |
| 809 // keyboard commands specific to Safari's auto-fill implementation. We | |
| 810 // just return false to allow the default action. | |
| 811 return false; | |
| 812 } | |
| 813 | |
| 814 void EditorClientImpl::textWillBeDeletedInTextField(Element*) | |
| 815 { | |
| 816 } | |
| 817 | |
| 818 void EditorClientImpl::textDidChangeInTextArea(Element*) | |
| 819 { | |
| 820 } | |
| 821 | |
| 822 void EditorClientImpl::ignoreWordInSpellDocument(const String&) | |
| 823 { | |
| 824 notImplemented(); | |
| 825 } | |
| 826 | |
| 827 void EditorClientImpl::learnWord(const String&) | |
| 828 { | |
| 829 notImplemented(); | |
| 830 } | |
| 831 | |
| 832 void EditorClientImpl::checkSpellingOfString(const UChar* text, int length, | |
| 833 int* misspellingLocation, | |
| 834 int* misspellingLength) | |
| 835 { | |
| 836 // SpellCheckWord will write (0, 0) into the output vars, which is what our | |
| 837 // caller expects if the word is spelled correctly. | |
| 838 int spellLocation = -1; | |
| 839 int spellLength = 0; | |
| 840 | |
| 841 // Check to see if the provided text is spelled correctly. | |
| 842 if (isContinuousSpellCheckingEnabled() && m_webView->client()) | |
| 843 m_webView->client()->spellCheck(WebString(text, length), spellLocation, spellLength); | |
| 844 else { | |
| 845 spellLocation = 0; | |
| 846 spellLength = 0; | |
| 847 } | |
| 848 | |
| 849 // Note: the Mac code checks if the pointers are null before writing to them, | |
| 850 // so we do too. | |
| 851 if (misspellingLocation) | |
| 852 *misspellingLocation = spellLocation; | |
| 853 if (misspellingLength) | |
| 854 *misspellingLength = spellLength; | |
| 855 } | |
| 856 | |
| 857 String EditorClientImpl::getAutoCorrectSuggestionForMisspelledWord(const String& misspelledWord) | |
| 858 { | |
| 859 if (!(isContinuousSpellCheckingEnabled() && m_webView->client())) | |
| 860 return String(); | |
| 861 | |
| 862 // Do not autocorrect words with capital letters in it except the | |
| 863 // first letter. This will remove cases changing "IMB" to "IBM". | |
| 864 for (size_t i = 1; i < misspelledWord.length(); i++) { | |
| 865 if (u_isupper(static_cast<UChar32>(misspelledWord[i]))) | |
| 866 return String(); | |
| 867 } | |
| 868 | |
| 869 return m_webView->client()->autoCorrectWord(WebString(misspelledWord)); | |
| 870 } | |
| 871 | |
| 872 void EditorClientImpl::checkGrammarOfString(const UChar*, int length, | |
| 873 WTF::Vector<GrammarDetail>&, | |
| 874 int* badGrammarLocation, | |
| 875 int* badGrammarLength) | |
| 876 { | |
| 877 notImplemented(); | |
| 878 if (badGrammarLocation) | |
| 879 *badGrammarLocation = 0; | |
| 880 if (badGrammarLength) | |
| 881 *badGrammarLength = 0; | |
| 882 } | |
| 883 | |
| 884 void EditorClientImpl::updateSpellingUIWithGrammarString(const String&, | |
| 885 const GrammarDetail& detail) | |
| 886 { | |
| 887 notImplemented(); | |
| 888 } | |
| 889 | |
| 890 void EditorClientImpl::updateSpellingUIWithMisspelledWord(const String& misspelledWord) | |
| 891 { | |
| 892 if (m_webView->client()) | |
| 893 m_webView->client()->updateSpellingUIWithMisspelledWord(WebString(misspelledWord)); | |
| 894 } | |
| 895 | |
| 896 void EditorClientImpl::showSpellingUI(bool show) | |
| 897 { | |
| 898 if (m_webView->client()) | |
| 899 m_webView->client()->showSpellingUI(show); | |
| 900 } | |
| 901 | |
| 902 bool EditorClientImpl::spellingUIIsShowing() | |
| 903 { | |
| 904 if (m_webView->client()) | |
| 905 return m_webView->client()->isShowingSpellingUI(); | |
| 906 return false; | |
| 907 } | |
| 908 | |
| 909 void EditorClientImpl::getGuessesForWord(const String&, | |
| 910 WTF::Vector<String>& guesses) | |
| 911 { | |
| 912 notImplemented(); | |
| 913 } | |
| 914 | |
| 915 void EditorClientImpl::setInputMethodState(bool enabled) | |
| 916 { | |
| 917 if (m_webView->client()) | |
| 918 m_webView->client()->setInputMethodEnabled(enabled); | |
| 919 } | |
| 920 | |
| 921 } // namesace WebKit | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 385057:
Deleted webkit/api which now lives in webkit.org (Closed)
