Move execCommand related files in core/editing/ related files into core/editing/commands/

Source/core/editing/InsertTextCommand.cpp

Index: Source/core/editing/InsertTextCommand.cpp
diff --git a/Source/core/editing/InsertTextCommand.cpp b/Source/core/editing/InsertTextCommand.cpp
deleted file mode 100644
index a62339f3af83b25f33b8bf6ca150f2ec31de6881..0000000000000000000000000000000000000000
--- a/Source/core/editing/InsertTextCommand.cpp
+++ /dev/null
@@ -1,273 +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 "core/editing/InsertTextCommand.h"
-
-#include "core/dom/Document.h"
-#include "core/dom/Element.h"
-#include "core/dom/Text.h"
-#include "core/editing/EditingUtilities.h"
-#include "core/editing/Editor.h"
-#include "core/editing/VisibleUnits.h"
-#include "core/frame/LocalFrame.h"
-#include "core/html/HTMLSpanElement.h"
-
-namespace blink {
-
-InsertTextCommand::InsertTextCommand(Document& document, const String& text, bool selectInsertedText, RebalanceType rebalanceType)
-    : CompositeEditCommand(document)
-    , m_text(text)
-    , m_selectInsertedText(selectInsertedText)
-    , m_rebalanceType(rebalanceType)
-{
-}
-
-Position InsertTextCommand::positionInsideTextNode(const Position& p)
-{
-    Position pos = p;
-    if (isTabHTMLSpanElementTextNode(pos.anchorNode())) {
-        RefPtrWillBeRawPtr<Text> textNode = document().createEditingTextNode("");
-        insertNodeAtTabSpanPosition(textNode.get(), pos);
-        return firstPositionInNode(textNode.get());
-    }
-
-    // Prepare for text input by looking at the specified position.
-    // It may be necessary to insert a text node to receive characters.
-    if (!pos.computeContainerNode()->isTextNode()) {
-        RefPtrWillBeRawPtr<Text> textNode = document().createEditingTextNode("");
-        insertNodeAt(textNode.get(), pos);
-        return firstPositionInNode(textNode.get());
-    }
-
-    return pos;
-}
-
-void InsertTextCommand::setEndingSelectionWithoutValidation(const Position& startPosition, const Position& endPosition)
-{
-    // 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>
-    VisibleSelection forcedEndingSelection;
-    forcedEndingSelection.setWithoutValidation(startPosition, endPosition);
-    forcedEndingSelection.setIsDirectional(endingSelection().isDirectional());
-    setEndingSelection(forcedEndingSelection);
-}
-
-// 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 endPosition = replaceSelectedTextInNode(text);
-    if (endPosition.isNull())
-        return false;
-
-    setEndingSelectionWithoutValidation(start, endPosition);
-    if (!selectInsertedText)
-        setEndingSelection(VisibleSelection(endingSelection().visibleEnd(), endingSelection().isDirectional()));
-
-    return true;
-}
-
-bool InsertTextCommand::performOverwrite(const String& text, bool selectInsertedText)
-{
-    Position start = endingSelection().start();
-    if (start.isNull() || !start.isOffsetInAnchor() || !start.computeContainerNode()->isTextNode())
-        return false;
-    RefPtrWillBeRawPtr<Text> textNode = toText(start.computeContainerNode());
-    if (!textNode)
-        return false;
-
-    unsigned count = std::min(text.length(), textNode->length() - start.offsetInContainerNode());
-    if (!count)
-        return false;
-
-    replaceTextInNode(textNode, start.offsetInContainerNode(), count, text);
-
-    Position endPosition = Position(textNode.release(), start.offsetInContainerNode() + text.length());
-    setEndingSelectionWithoutValidation(start, endPosition);
-    if (!selectInsertedText)
-        setEndingSelection(VisibleSelection(endingSelection().visibleEnd(), endingSelection().isDirectional()));
-
-    return true;
-}
-
-void InsertTextCommand::doApply()
-{
-    ASSERT(m_text.find('\n') == kNotFound);
-
-    if (!endingSelection().isNonOrphanedCaretOrRange())
-        return;
-
-    // Delete the current selection.
-    // FIXME: This delete operation blows away the typing style.
-    if (endingSelection().isRange()) {
-        if (performTrivialReplace(m_text, m_selectInsertedText))
-            return;
-        bool endOfSelectionWasAtStartOfBlock = isStartOfBlock(endingSelection().visibleEnd());
-        deleteSelection(false, true, false, false);
-        // deleteSelection eventually makes a new endingSelection out of a Position. If that Position doesn't have
-        // a layoutObject (e.g. it is on a <frameset> in the DOM), the VisibleSelection cannot be canonicalized to
-        // anything other than NoSelection. The rest of this function requires a real endingSelection, so bail out.
-        if (endingSelection().isNone())
-            return;
-        if (endOfSelectionWasAtStartOfBlock) {
-            if (EditingStyle* typingStyle = document().frame()->selection().typingStyle())
-                typingStyle->removeBlockProperties();
-        }
-    } else if (document().frame()->editor().isOverwriteModeEnabled()) {
-        if (performOverwrite(m_text, m_selectInsertedText))
-            return;
-    }
-
-    Position startPosition(endingSelection().start());
-
-    Position placeholder;
-    // We want to remove preserved newlines and brs that will collapse (and thus become unnecessary) when content
-    // is inserted just before them.
-    // FIXME: We shouldn't really have to do this, but removing placeholders is a workaround for 9661.
-    // If the caret is just before a placeholder, downstream will normalize the caret to it.
-    Position downstream(startPosition.downstream());
-    if (lineBreakExistsAtPosition(downstream)) {
-        // FIXME: This doesn't handle placeholders at the end of anonymous blocks.
-        VisiblePosition caret(startPosition);
-        if (isEndOfBlock(caret) && isStartOfParagraph(caret))
-            placeholder = downstream;
-        // Don't remove the placeholder yet, otherwise the block we're inserting into would collapse before
-        // we get a chance to insert into it.  We check for a placeholder now, though, because doing so requires
-        // the creation of a VisiblePosition, and if we did that post-insertion it would force a layout.
-    }
-
-    // Insert the character at the leftmost candidate.
-    startPosition = startPosition.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.
-    ASSERT(startPosition.computeContainerNode());
-    Position positionBeforeStartNode(positionInParentBeforeNode(*startPosition.computeContainerNode()));
-    deleteInsignificantText(startPosition, startPosition.downstream());
-    if (!startPosition.inDocument())
-        startPosition = positionBeforeStartNode;
-    if (!startPosition.isCandidate())
-        startPosition = startPosition.downstream();
-
-    startPosition = positionAvoidingSpecialElementBoundary(startPosition);
-
-    Position endPosition;
-
-    if (m_text == "\t") {
-        endPosition = insertTab(startPosition);
-        startPosition = endPosition.previous();
-        if (placeholder.isNotNull())
-            removePlaceholderAt(placeholder);
-    } else {
-        // Make sure the document is set up to receive m_text
-        startPosition = positionInsideTextNode(startPosition);
-        ASSERT(startPosition.isOffsetInAnchor());
-        ASSERT(startPosition.computeContainerNode());
-        ASSERT(startPosition.computeContainerNode()->isTextNode());
-        if (placeholder.isNotNull())
-            removePlaceholderAt(placeholder);
-        RefPtrWillBeRawPtr<Text> textNode = toText(startPosition.computeContainerNode());
-        const unsigned offset = startPosition.offsetInContainerNode();
-
-        insertTextIntoNode(textNode, offset, m_text);
-        endPosition = Position(textNode, offset + m_text.length());
-
-        if (m_rebalanceType == RebalanceLeadingAndTrailingWhitespaces) {
-            // The insertion may require adjusting adjacent whitespace, if it is present.
-            rebalanceWhitespaceAt(endPosition);
-            // Rebalancing on both sides isn't necessary if we've inserted only spaces.
-            if (!shouldRebalanceLeadingWhitespaceFor(m_text))
-                rebalanceWhitespaceAt(startPosition);
-        } else {
-            ASSERT(m_rebalanceType == RebalanceAllWhitespaces);
-            if (canRebalance(startPosition) && canRebalance(endPosition))
-                rebalanceWhitespaceOnTextSubstring(textNode, startPosition.offsetInContainerNode(), endPosition.offsetInContainerNode());
-        }
-    }
-
-    setEndingSelectionWithoutValidation(startPosition, endPosition);
-
-    // Handle the case where there is a typing style.
-    if (RefPtrWillBeRawPtr<EditingStyle> typingStyle = document().frame()->selection().typingStyle()) {
-        typingStyle->prepareToApplyAt(endPosition, EditingStyle::PreserveWritingDirection);
-        if (!typingStyle->isEmpty())
-            applyStyle(typingStyle.get());
-    }
-
-    if (!m_selectInsertedText)
-        setEndingSelection(VisibleSelection(endingSelection().end(), endingSelection().affinity(), endingSelection().isDirectional()));
-}
-
-Position InsertTextCommand::insertTab(const Position& pos)
-{
-    Position insertPos = VisiblePosition(pos, DOWNSTREAM).deepEquivalent();
-    if (insertPos.isNull())
-        return pos;
-
-    Node* node = insertPos.computeContainerNode();
-    unsigned offset = node->isTextNode() ? insertPos.offsetInContainerNode() : 0;
-
-    // keep tabs coalesced in tab span
-    if (isTabHTMLSpanElementTextNode(node)) {
-        RefPtrWillBeRawPtr<Text> textNode = toText(node);
-        insertTextIntoNode(textNode, offset, "\t");
-        return Position(textNode.release(), offset + 1);
-    }
-
-    // create new tab span
-    RefPtrWillBeRawPtr<HTMLSpanElement> spanElement = createTabSpanElement(document());
-
-    // place it
-    if (!node->isTextNode()) {
-        insertNodeAt(spanElement.get(), insertPos);
-    } else {
-        RefPtrWillBeRawPtr<Text> textNode = toText(node);
-        if (offset >= textNode->length()) {
-            insertNodeAfter(spanElement, textNode.release());
-        } 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(spanElement, textNode.release());
-        }
-    }
-
-    // return the position following the new tab
-    return lastPositionInNode(spanElement.get());
-}
-
-}