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/*
* Copyright (C) 2006 Apple Inc.
* Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef HitTestResult_h
#define HitTestResult_h
#include "FloatQuad.h"
#include "FloatRect.h"
#include "HitTestLocation.h"
#include "HitTestRequest.h"
#include "LayoutRect.h"
#include "TextFlags.h"
#include <memory>
#include <wtf/Forward.h>
#include <wtf/ListHashSet.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class Element;
class Frame;
#if ENABLE(VIDEO)
class HTMLMediaElement;
#endif
class Image;
class URL;
class Node;
class Scrollbar;
class HitTestResult {
public:
typedef ListHashSet<RefPtr<Node>> NodeSet;
WEBCORE_EXPORT HitTestResult();
WEBCORE_EXPORT explicit HitTestResult(const LayoutPoint&);
// Pass non-negative padding values to perform a rect-based hit test.
WEBCORE_EXPORT HitTestResult(const LayoutPoint& centerPoint, unsigned topPadding, unsigned rightPadding, unsigned bottomPadding, unsigned leftPadding);
WEBCORE_EXPORT explicit HitTestResult(const HitTestLocation&);
WEBCORE_EXPORT HitTestResult(const HitTestResult&);
WEBCORE_EXPORT ~HitTestResult();
WEBCORE_EXPORT HitTestResult& operator=(const HitTestResult&);
Node* innerNode() const { return m_innerNode.get(); }
WEBCORE_EXPORT Element* innerElement() const;
Node* innerNonSharedNode() const { return m_innerNonSharedNode.get(); }
WEBCORE_EXPORT Element* innerNonSharedElement() const;
Element* URLElement() const { return m_innerURLElement.get(); }
Scrollbar* scrollbar() const { return m_scrollbar.get(); }
bool isOverWidget() const { return m_isOverWidget; }
// Forwarded from HitTestLocation
bool isRectBasedTest() const { return m_hitTestLocation.isRectBasedTest(); }
// The hit-tested point in the coordinates of the main frame.
const LayoutPoint& pointInMainFrame() const { return m_hitTestLocation.point(); }
IntPoint roundedPointInMainFrame() const { return roundedIntPoint(pointInMainFrame()); }
// The hit-tested point in the coordinates of the innerNode frame, the frame containing innerNode.
const LayoutPoint& pointInInnerNodeFrame() const { return m_pointInInnerNodeFrame; }
IntPoint roundedPointInInnerNodeFrame() const { return roundedIntPoint(pointInInnerNodeFrame()); }
WEBCORE_EXPORT Frame* innerNodeFrame() const;
// The hit-tested point in the coordinates of the inner node.
const LayoutPoint& localPoint() const { return m_localPoint; }
void setLocalPoint(const LayoutPoint& p) { m_localPoint = p; }
WEBCORE_EXPORT void setToNonShadowAncestor();
const HitTestLocation& hitTestLocation() const { return m_hitTestLocation; }
WEBCORE_EXPORT void setInnerNode(Node*);
void setInnerNonSharedNode(Node*);
void setURLElement(Element*);
void setScrollbar(Scrollbar*);
void setIsOverWidget(bool b) { m_isOverWidget = b; }
WEBCORE_EXPORT Frame* targetFrame() const;
WEBCORE_EXPORT bool isSelected() const;
WEBCORE_EXPORT String selectedText() const;
WEBCORE_EXPORT String spellingToolTip(TextDirection&) const;
String replacedString() const;
WEBCORE_EXPORT String title(TextDirection&) const;
String innerTextIfTruncated(TextDirection&) const;
WEBCORE_EXPORT String altDisplayString() const;
WEBCORE_EXPORT String titleDisplayString() const;
WEBCORE_EXPORT Image* image() const;
WEBCORE_EXPORT IntRect imageRect() const;
WEBCORE_EXPORT URL absoluteImageURL() const;
WEBCORE_EXPORT URL absolutePDFURL() const;
WEBCORE_EXPORT URL absoluteMediaURL() const;
WEBCORE_EXPORT URL absoluteLinkURL() const;
#if ENABLE(ATTACHMENT_ELEMENT)
WEBCORE_EXPORT URL absoluteAttachmentURL() const;
#endif
WEBCORE_EXPORT String textContent() const;
bool isOverLink() const;
WEBCORE_EXPORT bool isContentEditable() const;
void toggleMediaControlsDisplay() const;
void toggleMediaLoopPlayback() const;
WEBCORE_EXPORT bool mediaIsInFullscreen() const;
void toggleMediaFullscreenState() const;
void enterFullscreenForVideo() const;
bool mediaControlsEnabled() const;
bool mediaLoopEnabled() const;
bool mediaPlaying() const;
bool mediaSupportsFullscreen() const;
void toggleMediaPlayState() const;
WEBCORE_EXPORT bool mediaHasAudio() const;
WEBCORE_EXPORT bool mediaIsVideo() const;
bool mediaMuted() const;
void toggleMediaMuteState() const;
WEBCORE_EXPORT bool isDownloadableMedia() const;
WEBCORE_EXPORT bool isOverTextInsideFormControlElement() const;
WEBCORE_EXPORT bool allowsCopy() const;
// Returns true if it is rect-based hit test and needs to continue until the rect is fully
// enclosed by the boundaries of a node.
bool addNodeToRectBasedTestResult(Node*, const HitTestRequest&, const HitTestLocation& pointInContainer, const LayoutRect& = LayoutRect());
bool addNodeToRectBasedTestResult(Node*, const HitTestRequest&, const HitTestLocation& pointInContainer, const FloatRect&);
void append(const HitTestResult&);
// If m_rectBasedTestResult is 0 then set it to a new NodeSet. Return *m_rectBasedTestResult. Lazy allocation makes
// sense because the NodeSet is seldom necessary, and it's somewhat expensive to allocate and initialize. This method does
// the same thing as mutableRectBasedTestResult(), but here the return value is const.
WEBCORE_EXPORT const NodeSet& rectBasedTestResult() const;
Vector<String> dictationAlternatives() const;
Node* targetNode() const;
private:
NodeSet& mutableRectBasedTestResult(); // See above.
#if ENABLE(VIDEO)
HTMLMediaElement* mediaElement() const;
#endif
HitTestLocation m_hitTestLocation;
RefPtr<Node> m_innerNode;
RefPtr<Node> m_innerNonSharedNode;
LayoutPoint m_pointInInnerNodeFrame; // The hit-tested point in innerNode frame coordinates.
LayoutPoint m_localPoint; // A point in the local coordinate space of m_innerNonSharedNode's renderer. Allows us to efficiently
// determine where inside the renderer we hit on subsequent operations.
RefPtr<Element> m_innerURLElement;
RefPtr<Scrollbar> m_scrollbar;
bool m_isOverWidget; // Returns true if we are over a widget (and not in the border/padding area of a RenderWidget for example).
mutable std::unique_ptr<NodeSet> m_rectBasedTestResult;
};
String displayString(const String&, const Node*);
} // namespace WebCore
#endif // HitTestResult_h
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