2 * Copyright (C) 2006 Apple Computer, Inc.
3 * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
22 #ifndef HitTestResult_h
23 #define HitTestResult_h
25 #include "core/rendering/HitTestLocation.h"
26 #include "core/rendering/HitTestRequest.h"
27 #include "platform/geometry/FloatQuad.h"
28 #include "platform/geometry/FloatRect.h"
29 #include "platform/geometry/LayoutRect.h"
30 #include "platform/heap/Handle.h"
31 #include "platform/text/TextDirection.h"
32 #include "wtf/Forward.h"
33 #include "wtf/ListHashSet.h"
34 #include "wtf/OwnPtr.h"
35 #include "wtf/RefPtr.h"
41 class HTMLMediaElement;
50 typedef WillBeHeapListHashSet<RefPtrWillBeMember<Node> > NodeSet;
53 HitTestResult(const LayoutPoint&);
54 // Pass non-negative padding values to perform a rect-based hit test.
55 HitTestResult(const LayoutPoint& centerPoint, unsigned topPadding, unsigned rightPadding, unsigned bottomPadding, unsigned leftPadding);
56 HitTestResult(const HitTestLocation&);
57 HitTestResult(const HitTestResult&);
59 HitTestResult& operator=(const HitTestResult&);
61 Node* innerNode() const { return m_innerNode.get(); }
62 Node* innerPossiblyPseudoNode() const { return m_innerPossiblyPseudoNode.get(); }
63 Element* innerElement() const;
64 Node* innerNonSharedNode() const { return m_innerNonSharedNode.get(); }
65 Element* URLElement() const { return m_innerURLElement.get(); }
66 Scrollbar* scrollbar() const { return m_scrollbar.get(); }
67 bool isOverWidget() const { return m_isOverWidget; }
69 // Forwarded from HitTestLocation
70 bool isRectBasedTest() const { return m_hitTestLocation.isRectBasedTest(); }
72 // The hit-tested point in the coordinates of the main frame.
73 const LayoutPoint& pointInMainFrame() const { return m_hitTestLocation.point(); }
74 IntPoint roundedPointInMainFrame() const { return roundedIntPoint(pointInMainFrame()); }
76 // The hit-tested point in the coordinates of the innerNode frame, the frame containing innerNode.
77 const LayoutPoint& pointInInnerNodeFrame() const { return m_pointInInnerNodeFrame; }
78 IntPoint roundedPointInInnerNodeFrame() const { return roundedIntPoint(pointInInnerNodeFrame()); }
79 LocalFrame* innerNodeFrame() const;
81 // The hit-tested point in the coordinates of the inner node.
82 const LayoutPoint& localPoint() const { return m_localPoint; }
83 void setLocalPoint(const LayoutPoint& p) { m_localPoint = p; }
85 RenderObject* renderer() const;
87 void setToNodesInDocumentTreeScope();
88 void setToShadowHostIfInUserAgentShadowRoot();
90 const HitTestLocation& hitTestLocation() const { return m_hitTestLocation; }
92 void setInnerNode(Node*);
93 void setInnerNonSharedNode(Node*);
94 void setURLElement(Element*);
95 void setScrollbar(Scrollbar*);
96 void setIsFirstLetter(bool b) { m_isFirstLetter = b; }
97 void setIsOverWidget(bool b) { m_isOverWidget = b; }
99 bool isSelected() const;
100 String spellingToolTip(TextDirection&) const;
101 String title(TextDirection&) const;
102 const AtomicString& altDisplayString() const;
103 Image* image() const;
104 IntRect imageRect() const;
105 KURL absoluteImageURL() const;
106 // This variant of absoluteImageURL will also convert <canvas> elements
107 // to huge image data URLs (very expensive).
108 KURL absoluteImageURLIncludingCanvasDataURL() const;
109 KURL absoluteMediaURL() const;
110 KURL absoluteLinkURL() const;
111 String textContent() const;
112 bool isLiveLink() const;
113 bool isMisspelled() const;
114 bool isContentEditable() const;
116 bool isOverLink() const;
117 // Returns true if it is rect-based hit test and needs to continue until the rect is fully
118 // enclosed by the boundaries of a node.
119 bool addNodeToRectBasedTestResult(Node*, const HitTestRequest&, const HitTestLocation& pointInContainer, const LayoutRect& = LayoutRect());
120 bool addNodeToRectBasedTestResult(Node*, const HitTestRequest&, const HitTestLocation& pointInContainer, const FloatRect&);
121 void append(const HitTestResult&);
123 // If m_rectBasedTestResult is 0 then set it to a new NodeSet. Return *m_rectBasedTestResult. Lazy allocation makes
124 // sense because the NodeSet is seldom necessary, and it's somewhat expensive to allocate and initialize. This method does
125 // the same thing as mutableRectBasedTestResult(), but here the return value is const.
126 const NodeSet& rectBasedTestResult() const;
128 Node* targetNode() const;
131 KURL absoluteImageURLInternal(bool allowCanvas) const;
132 NodeSet& mutableRectBasedTestResult(); // See above.
133 HTMLMediaElement* mediaElement() const;
135 HitTestLocation m_hitTestLocation;
137 RefPtrWillBePersistent<Node> m_innerNode;
138 RefPtrWillBePersistent<Node> m_innerPossiblyPseudoNode;
139 RefPtrWillBePersistent<Node> m_innerNonSharedNode;
140 LayoutPoint m_pointInInnerNodeFrame; // The hit-tested point in innerNode frame coordinates.
141 LayoutPoint m_localPoint; // A point in the local coordinate space of m_innerNonSharedNode's renderer. Allows us to efficiently
142 // determine where inside the renderer we hit on subsequent operations.
143 RefPtrWillBePersistent<Element> m_innerURLElement;
144 RefPtr<Scrollbar> m_scrollbar;
145 bool m_isOverWidget; // Returns true if we are over a widget (and not in the border/padding area of a RenderWidget for example).
146 bool m_isFirstLetter;
148 mutable OwnPtrWillBePersistent<NodeSet> m_rectBasedTestResult;
151 } // namespace WebCore
153 #endif // HitTestResult_h