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

Source/core/editing/ApplyBlockElementCommand.cpp

Index: Source/core/editing/ApplyBlockElementCommand.cpp
diff --git a/Source/core/editing/ApplyBlockElementCommand.cpp b/Source/core/editing/ApplyBlockElementCommand.cpp
deleted file mode 100644
index b4725ef481987c4a999bb782dbcaa2f13b8188fa..0000000000000000000000000000000000000000
--- a/Source/core/editing/ApplyBlockElementCommand.cpp
+++ /dev/null
@@ -1,299 +0,0 @@
-/*
- * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
- * Copyright (C) 2010 Google 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "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 THE COPYRIGHT
- * OWNER 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/ApplyBlockElementCommand.h"
-
-#include "bindings/core/v8/ExceptionState.h"
-#include "core/HTMLNames.h"
-#include "core/dom/NodeComputedStyle.h"
-#include "core/dom/Text.h"
-#include "core/editing/EditingUtilities.h"
-#include "core/editing/VisiblePosition.h"
-#include "core/editing/VisibleUnits.h"
-#include "core/html/HTMLBRElement.h"
-#include "core/html/HTMLElement.h"
-#include "core/layout/LayoutObject.h"
-#include "core/style/ComputedStyle.h"
-
-namespace blink {
-
-using namespace HTMLNames;
-
-ApplyBlockElementCommand::ApplyBlockElementCommand(Document& document, const QualifiedName& tagName, const AtomicString& inlineStyle)
-    : CompositeEditCommand(document)
-    , m_tagName(tagName)
-    , m_inlineStyle(inlineStyle)
-{
-}
-
-ApplyBlockElementCommand::ApplyBlockElementCommand(Document& document, const QualifiedName& tagName)
-    : CompositeEditCommand(document)
-    , m_tagName(tagName)
-{
-}
-
-void ApplyBlockElementCommand::doApply()
-{
-    if (!endingSelection().rootEditableElement())
-        return;
-
-    VisiblePosition visibleEnd = endingSelection().visibleEnd();
-    VisiblePosition visibleStart = endingSelection().visibleStart();
-    if (visibleStart.isNull() || visibleStart.isOrphan() || visibleEnd.isNull() || visibleEnd.isOrphan())
-        return;
-
-    // When a selection ends at the start of a paragraph, we rarely paint
-    // the selection gap before that paragraph, because there often is no gap.
-    // In a case like this, it's not obvious to the user that the selection
-    // ends "inside" that paragraph, so it would be confusing if Indent/Outdent
-    // operated on that paragraph.
-    // FIXME: We paint the gap before some paragraphs that are indented with left
-    // margin/padding, but not others.  We should make the gap painting more consistent and
-    // then use a left margin/padding rule here.
-    if (visibleEnd.deepEquivalent() != visibleStart.deepEquivalent() && isStartOfParagraph(visibleEnd)) {
-        VisibleSelection newSelection(visibleStart, visibleEnd.previous(CannotCrossEditingBoundary), endingSelection().isDirectional());
-        if (newSelection.isNone())
-            return;
-        setEndingSelection(newSelection);
-    }
-
-    VisibleSelection selection = selectionForParagraphIteration(endingSelection());
-    VisiblePosition startOfSelection = selection.visibleStart();
-    VisiblePosition endOfSelection = selection.visibleEnd();
-    ASSERT(!startOfSelection.isNull());
-    ASSERT(!endOfSelection.isNull());
-    RefPtrWillBeRawPtr<ContainerNode> startScope = nullptr;
-    int startIndex = indexForVisiblePosition(startOfSelection, startScope);
-    RefPtrWillBeRawPtr<ContainerNode> endScope = nullptr;
-    int endIndex = indexForVisiblePosition(endOfSelection, endScope);
-
-    formatSelection(startOfSelection, endOfSelection);
-
-    document().updateLayoutIgnorePendingStylesheets();
-
-    ASSERT(startScope == endScope);
-    ASSERT(startIndex >= 0);
-    ASSERT(startIndex <= endIndex);
-    if (startScope == endScope && startIndex >= 0 && startIndex <= endIndex) {
-        VisiblePosition start(visiblePositionForIndex(startIndex, startScope.get()));
-        VisiblePosition end(visiblePositionForIndex(endIndex, endScope.get()));
-        if (start.isNotNull() && end.isNotNull())
-            setEndingSelection(VisibleSelection(start, end, endingSelection().isDirectional()));
-    }
-}
-
-void ApplyBlockElementCommand::formatSelection(const VisiblePosition& startOfSelection, const VisiblePosition& endOfSelection)
-{
-    // Special case empty unsplittable elements because there's nothing to split
-    // and there's nothing to move.
-    Position start = startOfSelection.deepEquivalent().downstream();
-    if (isAtUnsplittableElement(start)) {
-        RefPtrWillBeRawPtr<HTMLElement> blockquote = createBlockElement();
-        insertNodeAt(blockquote, start);
-        RefPtrWillBeRawPtr<HTMLBRElement> placeholder = createBreakElement(document());
-        appendNode(placeholder, blockquote);
-        setEndingSelection(VisibleSelection(positionBeforeNode(placeholder.get()), DOWNSTREAM, endingSelection().isDirectional()));
-        return;
-    }
-
-    RefPtrWillBeRawPtr<HTMLElement> blockquoteForNextIndent = nullptr;
-    VisiblePosition endOfCurrentParagraph = endOfParagraph(startOfSelection);
-    VisiblePosition endOfLastParagraph = endOfParagraph(endOfSelection);
-    VisiblePosition endAfterSelection = endOfParagraph(endOfLastParagraph.next());
-    m_endOfLastParagraph = endOfLastParagraph.deepEquivalent();
-
-    bool atEnd = false;
-    Position end;
-    while (endOfCurrentParagraph.deepEquivalent() != endAfterSelection.deepEquivalent() && !atEnd) {
-        if (endOfCurrentParagraph.deepEquivalent() == m_endOfLastParagraph)
-            atEnd = true;
-
-        rangeForParagraphSplittingTextNodesIfNeeded(endOfCurrentParagraph, start, end);
-        endOfCurrentParagraph = VisiblePosition(end);
-
-        Node* enclosingCell = enclosingNodeOfType(start, &isTableCell);
-        VisiblePosition endOfNextParagraph = endOfNextParagrahSplittingTextNodesIfNeeded(endOfCurrentParagraph, start, end);
-
-        formatRange(start, end, m_endOfLastParagraph, blockquoteForNextIndent);
-
-        // Don't put the next paragraph in the blockquote we just created for this paragraph unless
-        // the next paragraph is in the same cell.
-        if (enclosingCell && enclosingCell != enclosingNodeOfType(endOfNextParagraph.deepEquivalent(), &isTableCell))
-            blockquoteForNextIndent = nullptr;
-
-        // indentIntoBlockquote could move more than one paragraph if the paragraph
-        // is in a list item or a table. As a result, endAfterSelection could refer to a position
-        // no longer in the document.
-        if (endAfterSelection.isNotNull() && !endAfterSelection.deepEquivalent().inDocument())
-            break;
-        // Sanity check: Make sure our moveParagraph calls didn't remove endOfNextParagraph.deepEquivalent().anchorNode()
-        // If somehow, e.g. mutation event handler, we did, return to prevent crashes.
-        if (endOfNextParagraph.isNotNull() && !endOfNextParagraph.deepEquivalent().inDocument())
-            return;
-        endOfCurrentParagraph = endOfNextParagraph;
-    }
-}
-
-static bool isNewLineAtPosition(const Position& position)
-{
-    Node* textNode = position.computeContainerNode();
-    int offset = position.offsetInContainerNode();
-    if (!textNode || !textNode->isTextNode() || offset < 0 || offset >= textNode->maxCharacterOffset())
-        return false;
-
-    TrackExceptionState exceptionState;
-    String textAtPosition = toText(textNode)->substringData(offset, 1, exceptionState);
-    if (exceptionState.hadException())
-        return false;
-
-    return textAtPosition[0] == '\n';
-}
-
-static const ComputedStyle* computedStyleOfEnclosingTextNode(const Position& position)
-{
-    if (!position.isOffsetInAnchor() || !position.computeContainerNode() || !position.computeContainerNode()->isTextNode())
-        return 0;
-    return position.computeContainerNode()->computedStyle();
-}
-
-void ApplyBlockElementCommand::rangeForParagraphSplittingTextNodesIfNeeded(const VisiblePosition& endOfCurrentParagraph, Position& start, Position& end)
-{
-    start = startOfParagraph(endOfCurrentParagraph).deepEquivalent();
-    end = endOfCurrentParagraph.deepEquivalent();
-
-    document().updateLayoutTreeIfNeeded();
-
-    bool isStartAndEndOnSameNode = false;
-    if (const ComputedStyle* startStyle = computedStyleOfEnclosingTextNode(start)) {
-        isStartAndEndOnSameNode = computedStyleOfEnclosingTextNode(end) && start.computeContainerNode() == end.computeContainerNode();
-        bool isStartAndEndOfLastParagraphOnSameNode = computedStyleOfEnclosingTextNode(m_endOfLastParagraph) && start.computeContainerNode() == m_endOfLastParagraph.computeContainerNode();
-
-        // Avoid obtanining the start of next paragraph for start
-        if (startStyle->preserveNewline() && isNewLineAtPosition(start) && !isNewLineAtPosition(start.previous()) && start.offsetInContainerNode() > 0)
-            start = startOfParagraph(VisiblePosition(end.previous())).deepEquivalent();
-
-        // If start is in the middle of a text node, split.
-        if (!startStyle->collapseWhiteSpace() && start.offsetInContainerNode() > 0) {
-            int startOffset = start.offsetInContainerNode();
-            Text* startText = toText(start.computeContainerNode());
-            splitTextNode(startText, startOffset);
-            start = firstPositionInNode(startText);
-            if (isStartAndEndOnSameNode) {
-                ASSERT(end.offsetInContainerNode() >= startOffset);
-                end = Position(startText, end.offsetInContainerNode() - startOffset);
-            }
-            if (isStartAndEndOfLastParagraphOnSameNode) {
-                ASSERT(m_endOfLastParagraph.offsetInContainerNode() >= startOffset);
-                m_endOfLastParagraph = Position(startText, m_endOfLastParagraph.offsetInContainerNode() - startOffset);
-            }
-        }
-    }
-
-    document().updateLayoutTreeIfNeeded();
-
-    if (const ComputedStyle* endStyle = computedStyleOfEnclosingTextNode(end)) {
-        bool isEndAndEndOfLastParagraphOnSameNode = computedStyleOfEnclosingTextNode(m_endOfLastParagraph) && end.anchorNode() == m_endOfLastParagraph.anchorNode();
-        // Include \n at the end of line if we're at an empty paragraph
-        if (endStyle->preserveNewline() && start == end && end.offsetInContainerNode() < end.computeContainerNode()->maxCharacterOffset()) {
-            int endOffset = end.offsetInContainerNode();
-            if (!isNewLineAtPosition(end.previous()) && isNewLineAtPosition(end))
-                end = Position(end.computeContainerNode(), endOffset + 1);
-            if (isEndAndEndOfLastParagraphOnSameNode && end.offsetInContainerNode() >= m_endOfLastParagraph.offsetInContainerNode())
-                m_endOfLastParagraph = end;
-        }
-
-        // If end is in the middle of a text node, split.
-        if (endStyle->userModify() != READ_ONLY && !endStyle->collapseWhiteSpace() && end.offsetInContainerNode() && end.offsetInContainerNode() < end.computeContainerNode()->maxCharacterOffset()) {
-            RefPtrWillBeRawPtr<Text> endContainer = toText(end.computeContainerNode());
-            splitTextNode(endContainer, end.offsetInContainerNode());
-            if (isStartAndEndOnSameNode)
-                start = firstPositionInOrBeforeNode(endContainer->previousSibling());
-            if (isEndAndEndOfLastParagraphOnSameNode) {
-                if (m_endOfLastParagraph.offsetInContainerNode() == end.offsetInContainerNode())
-                    m_endOfLastParagraph = lastPositionInOrAfterNode(endContainer->previousSibling());
-                else
-                    m_endOfLastParagraph = Position(endContainer, m_endOfLastParagraph.offsetInContainerNode() - end.offsetInContainerNode());
-            }
-            end = lastPositionInNode(endContainer->previousSibling());
-        }
-    }
-}
-
-VisiblePosition ApplyBlockElementCommand::endOfNextParagrahSplittingTextNodesIfNeeded(VisiblePosition& endOfCurrentParagraph, Position& start, Position& end)
-{
-    VisiblePosition endOfNextParagraph = endOfParagraph(endOfCurrentParagraph.next());
-    Position position = endOfNextParagraph.deepEquivalent();
-    const ComputedStyle* style = computedStyleOfEnclosingTextNode(position);
-    if (!style)
-        return endOfNextParagraph;
-
-    RefPtrWillBeRawPtr<Text> text = toText(position.computeContainerNode());
-    if (!style->preserveNewline() || !position.offsetInContainerNode() || !isNewLineAtPosition(firstPositionInNode(text.get())))
-        return endOfNextParagraph;
-
-    // \n at the beginning of the text node immediately following the current paragraph is trimmed by moveParagraphWithClones.
-    // If endOfNextParagraph was pointing at this same text node, endOfNextParagraph will be shifted by one paragraph.
-    // Avoid this by splitting "\n"
-    splitTextNode(text, 1);
-
-    if (text == start.computeContainerNode() && text->previousSibling() && text->previousSibling()->isTextNode()) {
-        ASSERT(start.offsetInContainerNode() < position.offsetInContainerNode());
-        start = Position(toText(text->previousSibling()), start.offsetInContainerNode());
-    }
-    if (text == end.computeContainerNode() && text->previousSibling() && text->previousSibling()->isTextNode()) {
-        ASSERT(end.offsetInContainerNode() < position.offsetInContainerNode());
-        end = Position(toText(text->previousSibling()), end.offsetInContainerNode());
-    }
-    if (text == m_endOfLastParagraph.computeContainerNode()) {
-        if (m_endOfLastParagraph.offsetInContainerNode() < position.offsetInContainerNode()) {
-            // We can only fix endOfLastParagraph if the previous node was still text and hasn't been modified by script.
-            if (text->previousSibling()->isTextNode()
-                && static_cast<unsigned>(m_endOfLastParagraph.offsetInContainerNode()) <= toText(text->previousSibling())->length())
-                m_endOfLastParagraph = Position(toText(text->previousSibling()), m_endOfLastParagraph.offsetInContainerNode());
-        } else {
-            m_endOfLastParagraph = Position(text.get(), m_endOfLastParagraph.offsetInContainerNode() - 1);
-        }
-    }
-
-    return VisiblePosition(Position(text.get(), position.offsetInContainerNode() - 1));
-}
-
-PassRefPtrWillBeRawPtr<HTMLElement> ApplyBlockElementCommand::createBlockElement() const
-{
-    RefPtrWillBeRawPtr<HTMLElement> element = createHTMLElement(document(), m_tagName);
-    if (m_inlineStyle.length())
-        element->setAttribute(styleAttr, m_inlineStyle);
-    return element.release();
-}
-
-DEFINE_TRACE(ApplyBlockElementCommand)
-{
-    visitor->trace(m_endOfLastParagraph);
-    CompositeEditCommand::trace(visitor);
-}
-
-}