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Diffstat (limited to 'WebCore/editing/InsertTextCommand.cpp')
| -rw-r--r-- | WebCore/editing/InsertTextCommand.cpp | 242 |
1 files changed, 0 insertions, 242 deletions
diff --git a/WebCore/editing/InsertTextCommand.cpp b/WebCore/editing/InsertTextCommand.cpp deleted file mode 100644 index a831859..0000000 --- a/WebCore/editing/InsertTextCommand.cpp +++ /dev/null @@ -1,242 +0,0 @@ -/* - * Copyright (C) 2005 Apple Computer, Inc. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "config.h" -#include "InsertTextCommand.h" - -#include "CharacterNames.h" -#include "CSSMutableStyleDeclaration.h" -#include "CSSComputedStyleDeclaration.h" -#include "Document.h" -#include "Element.h" -#include "EditingText.h" -#include "Editor.h" -#include "Frame.h" -#include "Logging.h" -#include "HTMLInterchange.h" -#include "htmlediting.h" -#include "TextIterator.h" -#include "TypingCommand.h" -#include "visible_units.h" - -namespace WebCore { - -InsertTextCommand::InsertTextCommand(Document *document) - : CompositeEditCommand(document), m_charactersAdded(0) -{ -} - -void InsertTextCommand::doApply() -{ -} - -Position InsertTextCommand::prepareForTextInsertion(const Position& p) -{ - Position pos = p; - // If an anchor was removed and the selection hasn't changed, we restore it. - RefPtr<Node> anchor = document()->frame()->editor()->removedAnchor(); - if (anchor) { - insertNodeAt(anchor.get(), pos); - document()->frame()->editor()->setRemovedAnchor(0); - pos = Position(anchor.get(), 0); - } - // Prepare for text input by looking at the specified position. - // It may be necessary to insert a text node to receive characters. - if (!pos.node()->isTextNode()) { - RefPtr<Node> textNode = document()->createEditingTextNode(""); - insertNodeAt(textNode.get(), pos); - return Position(textNode.get(), 0); - } - - if (isTabSpanTextNode(pos.node())) { - RefPtr<Node> textNode = document()->createEditingTextNode(""); - insertNodeAtTabSpanPosition(textNode.get(), pos); - return Position(textNode.get(), 0); - } - - return pos; -} - -// This avoids the expense of a full fledged delete operation, and avoids a layout that typically results -// from text removal. -bool InsertTextCommand::performTrivialReplace(const String& text, bool selectInsertedText) -{ - if (!endingSelection().isRange()) - return false; - - if (text.contains('\t') || text.contains(' ') || text.contains('\n')) - return false; - - Position start = endingSelection().start(); - Position end = endingSelection().end(); - - if (start.node() != end.node() || !start.node()->isTextNode() || isTabSpanTextNode(start.node())) - return false; - - replaceTextInNode(static_cast<Text*>(start.node()), start.offset(), end.offset() - start.offset(), text); - - Position endPosition(start.node(), start.offset() + text.length()); - - // We could have inserted a part of composed character sequence, - // so we are basically treating ending selection as a range to avoid validation. - // <http://bugs.webkit.org/show_bug.cgi?id=15781> - Selection forcedEndingSelection; - forcedEndingSelection.setWithoutValidation(start, endPosition); - setEndingSelection(forcedEndingSelection); - - if (!selectInsertedText) - setEndingSelection(Selection(endingSelection().visibleEnd())); - - return true; -} - -void InsertTextCommand::input(const String& originalText, bool selectInsertedText) -{ - String text = originalText; - - ASSERT(text.find('\n') == -1); - - if (endingSelection().isNone()) - return; - - if (RenderObject* renderer = endingSelection().start().node()->renderer()) - if (renderer->style()->collapseWhiteSpace()) - // Turn all spaces into non breaking spaces, to make sure that they are treated - // literally, and aren't collapsed after insertion. They will be rebalanced - // (turned into a sequence of regular and non breaking spaces) below. - text.replace(' ', noBreakSpace); - - // Delete the current selection. - // FIXME: This delete operation blows away the typing style. - if (endingSelection().isRange()) { - if (performTrivialReplace(text, selectInsertedText)) - return; - deleteSelection(false, true, true, false); - } - - // Insert the character at the leftmost candidate. - Position startPosition = endingSelection().start().upstream(); - // It is possible for the node that contains startPosition to contain only unrendered whitespace, - // and so deleteInsignificantText could remove it. Save the position before the node in case that happens. - Position positionBeforeStartNode(positionBeforeNode(startPosition.node())); - deleteInsignificantText(startPosition.upstream(), startPosition.downstream()); - if (!startPosition.node()->inDocument()) - startPosition = positionBeforeStartNode; - if (!startPosition.isCandidate()) - startPosition = startPosition.downstream(); - - // FIXME: This typing around anchor behavior doesn't exactly match TextEdit. In TextEdit, - // you won't be placed inside a link when typing after it if you've just placed the caret - // there with the mouse. - startPosition = positionAvoidingSpecialElementBoundary(startPosition, false); - - Position endPosition; - - if (text == "\t") { - endPosition = insertTab(startPosition); - startPosition = endPosition.previous(); - removePlaceholderAt(VisiblePosition(startPosition)); - m_charactersAdded += 1; - } else { - // Make sure the document is set up to receive text - startPosition = prepareForTextInsertion(startPosition); - removePlaceholderAt(VisiblePosition(startPosition)); - Text *textNode = static_cast<Text *>(startPosition.node()); - int offset = startPosition.offset(); - - insertTextIntoNode(textNode, offset, text); - endPosition = Position(textNode, offset + text.length()); - - // The insertion may require adjusting adjacent whitespace, if it is present. - rebalanceWhitespaceAt(endPosition); - // Rebalancing on both sides isn't necessary if we've inserted a space. - if (originalText != " ") - rebalanceWhitespaceAt(startPosition); - - m_charactersAdded += text.length(); - } - - // We could have inserted a part of composed character sequence, - // so we are basically treating ending selection as a range to avoid validation. - // <http://bugs.webkit.org/show_bug.cgi?id=15781> - Selection forcedEndingSelection; - forcedEndingSelection.setWithoutValidation(startPosition, endPosition); - setEndingSelection(forcedEndingSelection); - - // Handle the case where there is a typing style. - CSSMutableStyleDeclaration* typingStyle = document()->frame()->typingStyle(); - RefPtr<CSSComputedStyleDeclaration> endingStyle = endPosition.computedStyle(); - endingStyle->diff(typingStyle); - if (typingStyle && typingStyle->length() > 0) - applyStyle(typingStyle); - - if (!selectInsertedText) - setEndingSelection(Selection(endingSelection().end(), endingSelection().affinity())); -} - -Position InsertTextCommand::insertTab(const Position& pos) -{ - Position insertPos = VisiblePosition(pos, DOWNSTREAM).deepEquivalent(); - - Node *node = insertPos.node(); - unsigned int offset = insertPos.offset(); - - // keep tabs coalesced in tab span - if (isTabSpanTextNode(node)) { - insertTextIntoNode(static_cast<Text *>(node), offset, "\t"); - return Position(node, offset + 1); - } - - // create new tab span - RefPtr<Element> spanNode = createTabSpanElement(document()); - - // place it - if (!node->isTextNode()) { - insertNodeAt(spanNode.get(), insertPos); - } else { - Text *textNode = static_cast<Text *>(node); - if (offset >= textNode->length()) { - insertNodeAfter(spanNode.get(), textNode); - } else { - // split node to make room for the span - // NOTE: splitTextNode uses textNode for the - // second node in the split, so we need to - // insert the span before it. - if (offset > 0) - splitTextNode(textNode, offset); - insertNodeBefore(spanNode.get(), textNode); - } - } - - // return the position following the new tab - return Position(spanNode->lastChild(), caretMaxOffset(spanNode->lastChild())); -} - -bool InsertTextCommand::isInsertTextCommand() const -{ - return true; -} - -} |