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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
/*
* Copyright (C) 2001 Peter Kelly (pmk@post.com)
* Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
* Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
* Copyright (C) 2003, 2005, 2006, 2008 Apple Inc. All rights reserved.
*
* 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.
*/
#include "config.h"
#include "MouseRelatedEvent.h"
#include "DOMWindow.h"
#include "Document.h"
#include "Frame.h"
#include "FrameView.h"
#include "RenderLayer.h"
#include "RenderObject.h"
namespace WebCore {
MouseRelatedEvent::MouseRelatedEvent()
: m_screenX(0)
, m_screenY(0)
, m_clientX(0)
, m_clientY(0)
, m_pageX(0)
, m_pageY(0)
, m_layerX(0)
, m_layerY(0)
, m_offsetX(0)
, m_offsetY(0)
, m_isSimulated(false)
{
}
static int contentsX(AbstractView* abstractView)
{
if (!abstractView)
return 0;
Frame* frame = abstractView->frame();
if (!frame)
return 0;
FrameView* frameView = frame->view();
if (!frameView)
return 0;
return frameView->scrollX() / frame->pageZoomFactor();
}
static int contentsY(AbstractView* abstractView)
{
if (!abstractView)
return 0;
Frame* frame = abstractView->frame();
if (!frame)
return 0;
FrameView* frameView = frame->view();
if (!frameView)
return 0;
return frameView->scrollY() / frame->pageZoomFactor();
}
MouseRelatedEvent::MouseRelatedEvent(const AtomicString& eventType, bool canBubble, bool cancelable, PassRefPtr<AbstractView> viewArg,
int detail, int screenX, int screenY, int pageX, int pageY,
bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool isSimulated)
: UIEventWithKeyState(eventType, canBubble, cancelable, viewArg, detail, ctrlKey, altKey, shiftKey, metaKey)
, m_screenX(screenX)
, m_screenY(screenY)
, m_clientX(pageX - contentsX(view()))
, m_clientY(pageY - contentsY(view()))
, m_pageX(pageX)
, m_pageY(pageY)
, m_isSimulated(isSimulated)
{
initCoordinates();
}
void MouseRelatedEvent::initCoordinates()
{
// Set up initial values for coordinates.
// Correct values can't be computed until we have at target, so receivedTarget
// does the "real" computation.
m_layerX = m_pageX;
m_layerY = m_pageY;
m_offsetX = m_pageX;
m_offsetY = m_pageY;
computePageLocation();
}
void MouseRelatedEvent::initCoordinates(int clientX, int clientY)
{
// Set up initial values for coordinates.
// Correct values can't be computed until we have at target, so receivedTarget
// does the "real" computation.
m_clientX = clientX;
m_clientY = clientY;
m_pageX = clientX + contentsX(view());
m_pageY = clientY + contentsY(view());
m_layerX = m_pageX;
m_layerY = m_pageY;
m_offsetX = m_pageX;
m_offsetY = m_pageY;
computePageLocation();
}
void MouseRelatedEvent::computePageLocation()
{
float zoomFactor = (view() && view()->frame()) ? view()->frame()->pageZoomFactor() : 1.0f;
setAbsoluteLocation(roundedIntPoint(FloatPoint(pageX() * zoomFactor, pageY() * zoomFactor)));
}
void MouseRelatedEvent::receivedTarget()
{
ASSERT(target());
Node* targ = target()->toNode();
if (!targ)
return;
// Compute coordinates that are based on the target.
m_layerX = m_pageX;
m_layerY = m_pageY;
m_offsetX = m_pageX;
m_offsetY = m_pageY;
// Must have an updated render tree for this math to work correctly.
targ->document()->updateStyleIfNeeded();
// Adjust offsetX/Y to be relative to the target's position.
if (!isSimulated()) {
if (RenderObject* r = targ->renderer()) {
FloatPoint localPos = r->absoluteToLocal(absoluteLocation(), false, true);
float zoomFactor = (view() && view()->frame()) ? view()->frame()->pageZoomFactor() : 1.0f;
m_offsetX = lroundf(localPos.x() / zoomFactor);
m_offsetY = lroundf(localPos.y() / zoomFactor);
}
}
// Adjust layerX/Y to be relative to the layer.
// FIXME: We're pretty sure this is the wrong defintion of "layer."
// Our RenderLayer is a more modern concept, and layerX/Y is some
// other notion about groups of elements (left over from the Netscape 4 days?);
// we should test and fix this.
Node* n = targ;
while (n && !n->renderer())
n = n->parent();
if (n) {
RenderLayer* layer = n->renderer()->enclosingLayer();
layer->updateLayerPosition();
for (; layer; layer = layer->parent()) {
m_layerX -= layer->x();
m_layerY -= layer->y();
}
}
}
int MouseRelatedEvent::pageX() const
{
return m_pageX;
}
int MouseRelatedEvent::pageY() const
{
return m_pageY;
}
int MouseRelatedEvent::x() const
{
// FIXME: This is not correct.
// See Microsoft documentation and <http://www.quirksmode.org/dom/w3c_events.html>.
return m_clientX;
}
int MouseRelatedEvent::y() const
{
// FIXME: This is not correct.
// See Microsoft documentation and <http://www.quirksmode.org/dom/w3c_events.html>.
return m_clientY;
}
} // namespace WebCore
|
