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

Source/core/editing/FormatBlockCommand.cpp

-/*
- * Copyright (C) 2006 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/FormatBlockCommand.h"
-
-#include "bindings/core/v8/ExceptionStatePlaceholder.h"
-#include "core/HTMLNames.h"
-#include "core/dom/Element.h"
-#include "core/dom/Range.h"
-#include "core/editing/EditingUtilities.h"
-#include "core/editing/VisibleUnits.h"
-#include "core/html/HTMLBRElement.h"
-#include "core/html/HTMLElement.h"
-
-namespace blink {
-
-using namespace HTMLNames;
-
-static Node* enclosingBlockToSplitTreeTo(Node* startNode);
-static bool isElementForFormatBlock(const QualifiedName& tagName);
-static inline bool isElementForFormatBlock(Node* node)
-{
-    return node->isElementNode() && isElementForFormatBlock(toElement(node)->tagQName());
-}
-
-static Element* enclosingBlockFlowElement(const VisiblePosition& visiblePosition)
-{
-    if (visiblePosition.isNull())
-        return nullptr;
-    return enclosingBlockFlowElement(*visiblePosition.deepEquivalent().anchorNode());
-}
-
-FormatBlockCommand::FormatBlockCommand(Document& document, const QualifiedName& tagName)
-    : ApplyBlockElementCommand(document, tagName)
-    , m_didApply(false)
-{
-}
-
-void FormatBlockCommand::formatSelection(const VisiblePosition& startOfSelection, const VisiblePosition& endOfSelection)
-{
-    if (!isElementForFormatBlock(tagName()))
-        return;
-    ApplyBlockElementCommand::formatSelection(startOfSelection, endOfSelection);
-    m_didApply = true;
-}
-
-void FormatBlockCommand::formatRange(const Position& start, const Position& end, const Position& endOfSelection, RefPtrWillBeRawPtr<HTMLElement>& blockElement)
-{
-    Element* refElement = enclosingBlockFlowElement(VisiblePosition(end));
-    Element* root = editableRootForPosition(start);
-    // Root is null for elements with contenteditable=false.
-    if (!root || !refElement)
-        return;
-
-    Node* nodeToSplitTo = enclosingBlockToSplitTreeTo(start.anchorNode());
-    RefPtrWillBeRawPtr<Node> outerBlock = (start.anchorNode() == nodeToSplitTo) ? start.anchorNode() : splitTreeToNode(start.anchorNode(), nodeToSplitTo).get();
-    RefPtrWillBeRawPtr<Node> nodeAfterInsertionPosition = outerBlock;
-    RefPtrWillBeRawPtr<Range> range = Range::create(document(), start, endOfSelection);
-
-    if (isElementForFormatBlock(refElement->tagQName()) && VisiblePosition(start).deepEquivalent() == startOfBlock(VisiblePosition(start)).deepEquivalent()
-        && (VisiblePosition(end).deepEquivalent() == endOfBlock(VisiblePosition(end)).deepEquivalent() || isNodeVisiblyContainedWithin(*refElement, *range))
-        && refElement != root && !root->isDescendantOf(refElement)) {
-        // Already in a block element that only contains the current paragraph
-        if (refElement->hasTagName(tagName()))
-            return;
-        nodeAfterInsertionPosition = refElement;
-    }
-
-    if (!blockElement) {
-        // Create a new blockquote and insert it as a child of the root editable element. We accomplish
-        // this by splitting all parents of the current paragraph up to that point.
-        blockElement = createBlockElement();
-        insertNodeBefore(blockElement, nodeAfterInsertionPosition);
-    }
-
-    Position lastParagraphInBlockNode = blockElement->lastChild() ? positionAfterNode(blockElement->lastChild()) : Position();
-    bool wasEndOfParagraph = isEndOfParagraph(VisiblePosition(lastParagraphInBlockNode));
-
-    moveParagraphWithClones(VisiblePosition(start), VisiblePosition(end), blockElement.get(), outerBlock.get());
-
-    // Copy the inline style of the original block element to the newly created block-style element.
-    if (outerBlock.get() != nodeAfterInsertionPosition.get() && toHTMLElement(nodeAfterInsertionPosition.get())->hasAttribute(styleAttr))
-        blockElement->setAttribute(styleAttr, toHTMLElement(nodeAfterInsertionPosition.get())->getAttribute(styleAttr));
-
-    if (wasEndOfParagraph && !isEndOfParagraph(VisiblePosition(lastParagraphInBlockNode)) && !isStartOfParagraph(VisiblePosition(lastParagraphInBlockNode)))
-        insertBlockPlaceholder(lastParagraphInBlockNode);
-}
-
-Element* FormatBlockCommand::elementForFormatBlockCommand(Range* range)
-{
-    if (!range)
-        return 0;
-
-    Node* commonAncestor = range->commonAncestorContainer();
-    while (commonAncestor && !isElementForFormatBlock(commonAncestor))
-        commonAncestor = commonAncestor->parentNode();
-
-    if (!commonAncestor)
-        return 0;
-
-    Element* rootEditableElement = range->startContainer()->rootEditableElement();
-    if (!rootEditableElement || commonAncestor->contains(rootEditableElement))
-        return 0;
-
-    return commonAncestor->isElementNode() ? toElement(commonAncestor) : 0;
-}
-
-bool isElementForFormatBlock(const QualifiedName& tagName)
-{
-    DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, blockTags, ());
-    if (blockTags.isEmpty()) {
-        blockTags.add(addressTag);
-        blockTags.add(articleTag);
-        blockTags.add(asideTag);
-        blockTags.add(blockquoteTag);
-        blockTags.add(ddTag);
-        blockTags.add(divTag);
-        blockTags.add(dlTag);
-        blockTags.add(dtTag);
-        blockTags.add(footerTag);
-        blockTags.add(h1Tag);
-        blockTags.add(h2Tag);
-        blockTags.add(h3Tag);
-        blockTags.add(h4Tag);
-        blockTags.add(h5Tag);
-        blockTags.add(h6Tag);
-        blockTags.add(headerTag);
-        blockTags.add(hgroupTag);
-        blockTags.add(mainTag);
-        blockTags.add(navTag);
-        blockTags.add(pTag);
-        blockTags.add(preTag);
-        blockTags.add(sectionTag);
-    }
-    return blockTags.contains(tagName);
-}
-
-Node* enclosingBlockToSplitTreeTo(Node* startNode)
-{
-    Node* lastBlock = startNode;
-    for (Node* n = startNode; n; n = n->parentNode()) {
-        if (!n->hasEditableStyle())
-            return lastBlock;
-        if (isTableCell(n) || isHTMLBodyElement(*n) || !n->parentNode() || !n->parentNode()->hasEditableStyle() || isElementForFormatBlock(n))
-            return n;
-        if (isBlock(n))
-            lastBlock = n;
-        if (isHTMLListElement(n))
-            return n->parentNode()->hasEditableStyle() ? n->parentNode() : n;
-    }
-    return lastBlock;
-}
-
-}