#ifndef htmlediting_h
#define htmlediting_h
#include "EditingBoundary.h"
#include "Position.h"
#include "TextDirection.h"
#include <wtf/Forward.h>
#include <wtf/unicode/CharacterNames.h>
namespace WebCore {
class Document;
class Element;
class HTMLElement;
class HTMLTextFormControlElement;
class Node;
class Position;
class Range;
class VisiblePosition;
class VisibleSelection;
Node* highestAncestor(Node*);
Node* highestEditableRoot(const Position&, EditableType = ContentIsEditable);
Node* highestEnclosingNodeOfType(const Position&, bool (*nodeIsOfType)(const Node*),
EditingBoundaryCrossingRule = CannotCrossEditingBoundary, Node* stayWithin = 0);
Node* highestNodeToRemoveInPruning(Node*);
Node* lowestEditableAncestor(Node*);
Node* enclosingBlock(Node*, EditingBoundaryCrossingRule = CannotCrossEditingBoundary);
Node* enclosingTableCell(const Position&);
Node* enclosingEmptyListItem(const VisiblePosition&);
Node* enclosingAnchorElement(const Position&);
Node* enclosingNodeWithTag(const Position&, const QualifiedName&);
Node* enclosingNodeOfType(const Position&, bool (*nodeIsOfType)(const Node*), EditingBoundaryCrossingRule = CannotCrossEditingBoundary);
Node* tabSpanNode(const Node*);
Node* isLastPositionBeforeTable(const VisiblePosition&);
Node* isFirstPositionAfterTable(const VisiblePosition&);
int lastOffsetForEditing(const Node*);
int caretMinOffset(const Node*);
int caretMaxOffset(const Node*);
inline bool editingIgnoresContent(const Node* node)
{
return !node->canContainRangeEndPoint();
}
inline bool canHaveChildrenForEditing(const Node* node)
{
return !node->isTextNode() && node->canContainRangeEndPoint();
}
bool isAtomicNode(const Node*);
bool isBlock(const Node*);
bool isInline(const Node*);
bool isSpecialElement(const Node*);
bool isTabSpanNode(const Node*);
bool isTabSpanTextNode(const Node*);
bool isMailBlockquote(const Node*);
bool isTableElement(Node*);
bool isTableCell(const Node*);
bool isEmptyTableCell(const Node*);
bool isTableStructureNode(const Node*);
bool isListElement(Node*);
bool isListItem(Node*);
bool isNodeRendered(const Node*);
bool isNodeVisiblyContainedWithin(Node*, const Range*);
bool isRenderedAsNonInlineTableImageOrHR(const Node*);
bool areIdenticalElements(const Node*, const Node*);
bool isNonTableCellHTMLBlockElement(const Node*);
TextDirection directionOfEnclosingBlock(const Position&);
Position nextCandidate(const Position&);
Position previousCandidate(const Position&);
Position nextVisuallyDistinctCandidate(const Position&);
Position previousVisuallyDistinctCandidate(const Position&);
Position positionOutsideTabSpan(const Position&);
Position positionBeforeContainingSpecialElement(const Position&, Node** containingSpecialElement=0);
Position positionAfterContainingSpecialElement(const Position&, Node** containingSpecialElement=0);
Position positionOutsideContainingSpecialElement(const Position&, Node** containingSpecialElement=0);
inline Position firstPositionInOrBeforeNode(Node* node)
{
if (!node)
return Position();
return editingIgnoresContent(node) ? positionBeforeNode(node) : firstPositionInNode(node);
}
inline Position lastPositionInOrAfterNode(Node* node)
{
if (!node)
return Position();
return editingIgnoresContent(node) ? positionAfterNode(node) : lastPositionInNode(node);
}
int comparePositions(const Position&, const Position&);
bool isEditablePosition(const Position&, EditableType = ContentIsEditable);
bool isRichlyEditablePosition(const Position&, EditableType = ContentIsEditable);
bool isFirstVisiblePositionInSpecialElement(const Position&);
bool isLastVisiblePositionInSpecialElement(const Position&);
bool lineBreakExistsAtPosition(const Position&);
bool isVisiblyAdjacent(const Position& first, const Position& second);
bool isAtUnsplittableElement(const Position&);
unsigned numEnclosingMailBlockquotes(const Position&);
void updatePositionForNodeRemoval(Position&, Node*);
VisiblePosition firstEditablePositionAfterPositionInRoot(const Position&, Node*);
VisiblePosition lastEditablePositionBeforePositionInRoot(const Position&, Node*);
VisiblePosition visiblePositionBeforeNode(Node*);
VisiblePosition visiblePositionAfterNode(Node*);
bool lineBreakExistsAtVisiblePosition(const VisiblePosition&);
int comparePositions(const VisiblePosition&, const VisiblePosition&);
int indexForVisiblePosition(const VisiblePosition&, RefPtr<Element>& scope);
VisiblePosition visiblePositionForIndex(int index, Element *scope);
PassRefPtr<Range> createRange(PassRefPtr<Document>, const VisiblePosition& start, const VisiblePosition& end, ExceptionCode&);
PassRefPtr<Range> extendRangeToWrappingNodes(PassRefPtr<Range> rangeToExtend, const Range* maximumRange, const Node* rootNode);
PassRefPtr<Range> avoidIntersectionWithNode(const Range*, Node*);
PassRefPtr<HTMLElement> createDefaultParagraphElement(Document*);
PassRefPtr<HTMLElement> createBreakElement(Document*);
PassRefPtr<HTMLElement> createOrderedListElement(Document*);
PassRefPtr<HTMLElement> createUnorderedListElement(Document*);
PassRefPtr<HTMLElement> createListItemElement(Document*);
PassRefPtr<HTMLElement> createHTMLElement(Document*, const QualifiedName&);
PassRefPtr<HTMLElement> createHTMLElement(Document*, const AtomicString&);
HTMLElement* enclosingList(Node*);
HTMLElement* outermostEnclosingList(Node*, Node* rootList = 0);
Node* enclosingListChild(Node*);
PassRefPtr<Element> createTabSpanElement(Document*);
PassRefPtr<Element> createTabSpanElement(Document*, PassRefPtr<Node> tabTextNode);
PassRefPtr<Element> createTabSpanElement(Document*, const String& tabText);
PassRefPtr<Element> createBlockPlaceholderElement(Document*);
Element* editableRootForPosition(const Position&, EditableType = ContentIsEditable);
Element* unsplittableElementForPosition(const Position&);
bool canMergeLists(Element* firstList, Element* secondList);
VisibleSelection avoidIntersectionWithNode(const VisibleSelection&, Node*);
VisibleSelection selectionForParagraphIteration(const VisibleSelection&);
Position adjustedSelectionStartForStyleComputation(const VisibleSelection&);
inline bool isWhitespace(UChar c)
{
return c == noBreakSpace || c == ' ' || c == '\n' || c == '\t';
}
inline bool isAmbiguousBoundaryCharacter(UChar character)
{
return character == '\'' || character == rightSingleQuotationMark || character == hebrewPunctuationGershayim;
}
String stringWithRebalancedWhitespace(const String&, bool startIsStartOfParagraph, bool endIsEndOfParagraph);
const String& nonBreakingSpaceString();
}
#endif