#pragma once
#include "EditingBoundary.h"
#include "Position.h"
namespace WebCore {
class VisiblePosition {
public:
static constexpr auto defaultAffinity = Affinity::Downstream;
VisiblePosition() = default;
WEBCORE_EXPORT VisiblePosition(const Position&, Affinity = defaultAffinity);
bool isNull() const { return m_deepPosition.isNull(); }
bool isNotNull() const { return m_deepPosition.isNotNull(); }
bool isOrphan() const { return m_deepPosition.isOrphan(); }
Position deepEquivalent() const { return m_deepPosition; }
Affinity affinity() const { return m_affinity; }
void setAffinity(Affinity affinity) { m_affinity = affinity; }
WEBCORE_EXPORT VisiblePosition next(EditingBoundaryCrossingRule = CanCrossEditingBoundary, bool* reachedBoundary = nullptr) const;
WEBCORE_EXPORT VisiblePosition previous(EditingBoundaryCrossingRule = CanCrossEditingBoundary, bool* reachedBoundary = nullptr) const;
VisiblePosition honorEditingBoundaryAtOrBefore(const VisiblePosition&, bool* reachedBoundary = nullptr) const;
VisiblePosition honorEditingBoundaryAtOrAfter(const VisiblePosition&, bool* reachedBoundary = nullptr) const;
WEBCORE_EXPORT VisiblePosition left(bool stayInEditableContent = false, bool* reachedBoundary = nullptr) const;
WEBCORE_EXPORT VisiblePosition right(bool stayInEditableContent = false, bool* reachedBoundary = nullptr) const;
WEBCORE_EXPORT UChar32 characterAfter() const;
UChar32 characterBefore() const { return previous().characterAfter(); }
Element* rootEditableElement() const { return m_deepPosition.isNotNull() ? m_deepPosition.deprecatedNode()->rootEditableElement() : 0; }
InlineRunAndOffset inlineRunAndOffset() const;
InlineRunAndOffset inlineRunAndOffset(TextDirection primaryDirection) const;
struct LocalCaretRect {
LayoutRect rect;
RenderObject* renderer { nullptr };
};
WEBCORE_EXPORT LocalCaretRect localCaretRect() const;
WEBCORE_EXPORT IntRect absoluteCaretBounds(bool* insideFixed = nullptr) const;
WEBCORE_EXPORT int lineDirectionPointForBlockDirectionNavigation() const;
WEBCORE_EXPORT FloatRect absoluteSelectionBoundsForLine() const;
bool equals(const VisiblePosition&) const;
#if ENABLE(TREE_DEBUGGING)
void debugPosition(const char* msg = "") const;
String debugDescription() const;
void showTreeForThis() const;
#endif
private:
static Position canonicalPosition(const Position&);
Position leftVisuallyDistinctCandidate() const;
Position rightVisuallyDistinctCandidate() const;
Position m_deepPosition;
Affinity m_affinity { defaultAffinity };
};
bool operator==(const VisiblePosition&, const VisiblePosition&);
bool operator!=(const VisiblePosition&, const VisiblePosition&);
WEBCORE_EXPORT PartialOrdering documentOrder(const VisiblePosition&, const VisiblePosition&);
bool operator<(const VisiblePosition&, const VisiblePosition&);
bool operator>(const VisiblePosition&, const VisiblePosition&);
bool operator<=(const VisiblePosition&, const VisiblePosition&);
bool operator>=(const VisiblePosition&, const VisiblePosition&);
WEBCORE_EXPORT Optional<BoundaryPoint> makeBoundaryPoint(const VisiblePosition&);
WEBCORE_EXPORT Element* enclosingBlockFlowElement(const VisiblePosition&);
bool isFirstVisiblePositionInNode(const VisiblePosition&, const Node*);
bool isLastVisiblePositionInNode(const VisiblePosition&, const Node*);
bool areVisiblePositionsInSameTreeScope(const VisiblePosition&, const VisiblePosition&);
Node* commonInclusiveAncestor(const VisiblePosition&, const VisiblePosition&);
WTF::TextStream& operator<<(WTF::TextStream&, Affinity);
WEBCORE_EXPORT WTF::TextStream& operator<<(WTF::TextStream&, const VisiblePosition&);
struct VisiblePositionRange {
VisiblePosition start;
VisiblePosition end;
bool isNull() const { return start.isNull() || end.isNull(); }
};
WEBCORE_EXPORT Optional<SimpleRange> makeSimpleRange(const VisiblePositionRange&);
WEBCORE_EXPORT VisiblePositionRange makeVisiblePositionRange(const Optional<SimpleRange>&);
Node* commonInclusiveAncestor(const VisiblePositionRange&);
WEBCORE_EXPORT bool intersects(const VisiblePositionRange&, const VisiblePositionRange&);
WEBCORE_EXPORT bool contains(const VisiblePositionRange&, const VisiblePosition&);
WEBCORE_EXPORT VisiblePositionRange intersection(const VisiblePositionRange&, const VisiblePositionRange&);
WEBCORE_EXPORT VisiblePosition midpoint(const VisiblePositionRange&);
inline bool operator==(const VisiblePosition& a, const VisiblePosition& b)
{
return a.deepEquivalent() == b.deepEquivalent();
}
inline bool operator!=(const VisiblePosition& a, const VisiblePosition& b)
{
return !(a == b);
}
inline bool operator<(const VisiblePosition& a, const VisiblePosition& b)
{
return is_lt(documentOrder(a, b));
}
inline bool operator>(const VisiblePosition& a, const VisiblePosition& b)
{
return is_gt(documentOrder(a, b));
}
inline bool operator<=(const VisiblePosition& a, const VisiblePosition& b)
{
return is_lteq(documentOrder(a, b));
}
inline bool operator>=(const VisiblePosition& a, const VisiblePosition& b)
{
return is_gteq(documentOrder(a, b));
}
}
#if ENABLE(TREE_DEBUGGING)
void showTree(const WebCore::VisiblePosition*);
void showTree(const WebCore::VisiblePosition&);
#endif