1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/*
* Copyright (C) 2006 Apple Computer, Inc.
*
* 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 "FloatRect.h"
#include "LayoutTypes.h"
#include "TextDirection.h"
#include <wtf/Forward.h>
#include <wtf/ListHashSet.h>
#include <wtf/OwnPtr.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class Element;
class Frame;
#if ENABLE(VIDEO)
class HTMLMediaElement;
#endif
class Image;
class KURL;
class Node;
class RenderRegion;
class Scrollbar;
class HitTestResult {
public:
typedef ListHashSet<RefPtr<Node> > NodeSet;
HitTestResult();
HitTestResult(const LayoutPoint&);
// Pass non-negative padding values to perform a rect-based hit test.
HitTestResult(const LayoutPoint& centerPoint, unsigned topPadding, unsigned rightPadding, unsigned bottomPadding, unsigned leftPadding);
HitTestResult(const HitTestResult&);
~HitTestResult();
HitTestResult& operator=(const HitTestResult&);
Node* innerNode() const { return m_innerNode.get(); }
Node* innerNonSharedNode() const { return m_innerNonSharedNode.get(); }
LayoutPoint point() const { return m_point; }
LayoutPoint localPoint() const { return m_localPoint; }
Element* URLElement() const { return m_innerURLElement.get(); }
Scrollbar* scrollbar() const { return m_scrollbar.get(); }
bool isOverWidget() const { return m_isOverWidget; }
RenderRegion* region() const { return m_region; }
void setRegion(RenderRegion* region) { m_region = region; }
void setToNonShadowAncestor();
void setInnerNode(Node*);
void setInnerNonSharedNode(Node*);
void setPoint(const LayoutPoint& p) { m_point = p; }
void setLocalPoint(const LayoutPoint& p) { m_localPoint = p; }
void setURLElement(Element*);
void setScrollbar(Scrollbar*);
void setIsOverWidget(bool b) { m_isOverWidget = b; }
Frame* targetFrame() const;
bool isSelected() const;
String spellingToolTip(TextDirection&) const;
String replacedString() const;
String title(TextDirection&) const;
String innerTextIfTruncated(TextDirection&) const;
String altDisplayString() const;
String titleDisplayString() const;
Image* image() const;
IntRect imageRect() const;
KURL absoluteImageURL() const;
KURL absolutePDFURL() const;
KURL absoluteMediaURL() const;
KURL absoluteLinkURL() const;
String textContent() const;
bool isLiveLink() const;
bool isContentEditable() const;
void toggleMediaControlsDisplay() const;
void toggleMediaLoopPlayback() const;
void enterFullscreenForVideo() const;
bool mediaControlsEnabled() const;
bool mediaLoopEnabled() const;
bool mediaPlaying() const;
bool mediaSupportsFullscreen() const;
void toggleMediaPlayState() const;
bool mediaHasAudio() const;
bool mediaIsVideo() const;
bool mediaMuted() const;
void toggleMediaMuteState() const;
// Rect-based hit test related methods.
bool isRectBasedTest() const { return m_isRectBased; }
LayoutRect rectForPoint(const LayoutPoint&) const;
static LayoutRect rectForPoint(const LayoutPoint&, unsigned topPadding, unsigned rightPadding, unsigned bottomPadding, unsigned leftPadding);
int topPadding() const { return m_topPadding; }
int rightPadding() const { return m_rightPadding; }
int bottomPadding() const { return m_bottomPadding; }
int leftPadding() const { return m_leftPadding; }
// 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 LayoutPoint& pointInContainer, const IntRect& = IntRect());
bool addNodeToRectBasedTestResult(Node*, const LayoutPoint& 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.
const NodeSet& rectBasedTestResult() const;
private:
NodeSet& mutableRectBasedTestResult(); // See above.
#if ENABLE(VIDEO)
HTMLMediaElement* mediaElement() const;
#endif
RefPtr<Node> m_innerNode;
RefPtr<Node> m_innerNonSharedNode;
LayoutPoint m_point;
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).
bool m_isRectBased;
int m_topPadding;
int m_rightPadding;
int m_bottomPadding;
int m_leftPadding;
RenderRegion* m_region; // The region we're inside.
mutable OwnPtr<NodeSet> m_rectBasedTestResult;
};
// Formula:
// x = p.x() - rightPadding
// y = p.y() - topPadding
// width = leftPadding + rightPadding + 1
// height = topPadding + bottomPadding + 1
inline LayoutRect HitTestResult::rectForPoint(const LayoutPoint& point) const
{
return rectForPoint(point, m_topPadding, m_rightPadding, m_bottomPadding, m_leftPadding);
}
String displayString(const String&, const Node*);
} // namespace WebCore
#endif // HitTestResult_h
|
