1 /*
2 * Copyright 2008, The Android Open Source Project
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27
28 #include "core/dom/Touch.h"
29
30 #include "core/frame/FrameView.h"
31 #include "core/frame/LocalFrame.h"
32 #include "platform/geometry/FloatPoint.h"
33
34 namespace WebCore {
35
contentsOffset(LocalFrame * frame)36 static FloatPoint contentsOffset(LocalFrame* frame)
37 {
38 if (!frame)
39 return FloatPoint();
40 FrameView* frameView = frame->view();
41 if (!frameView)
42 return FloatPoint();
43 float scale = 1.0f / frame->pageZoomFactor();
44 return FloatPoint(frameView->scrollPosition()).scaledBy(scale);
45 }
46
Touch(LocalFrame * frame,EventTarget * target,unsigned identifier,const FloatPoint & screenPos,const FloatPoint & pagePos,const FloatSize & radius,float rotationAngle,float force)47 Touch::Touch(LocalFrame* frame, EventTarget* target, unsigned identifier, const FloatPoint& screenPos, const FloatPoint& pagePos, const FloatSize& radius, float rotationAngle, float force)
48 : m_target(target)
49 , m_identifier(identifier)
50 , m_clientPos(pagePos - contentsOffset(frame))
51 , m_screenPos(screenPos)
52 , m_pagePos(pagePos)
53 , m_radius(radius)
54 , m_rotationAngle(rotationAngle)
55 , m_force(force)
56 {
57 ScriptWrappable::init(this);
58 float scaleFactor = frame->pageZoomFactor();
59 m_absoluteLocation = roundedLayoutPoint(pagePos.scaledBy(scaleFactor));
60 }
61
Touch(EventTarget * target,unsigned identifier,const FloatPoint & clientPos,const FloatPoint & screenPos,const FloatPoint & pagePos,const FloatSize & radius,float rotationAngle,float force,LayoutPoint absoluteLocation)62 Touch::Touch(EventTarget* target, unsigned identifier, const FloatPoint& clientPos, const FloatPoint& screenPos, const FloatPoint& pagePos, const FloatSize& radius, float rotationAngle, float force, LayoutPoint absoluteLocation)
63 : m_target(target)
64 , m_identifier(identifier)
65 , m_clientPos(clientPos)
66 , m_screenPos(screenPos)
67 , m_pagePos(pagePos)
68 , m_radius(radius)
69 , m_rotationAngle(rotationAngle)
70 , m_force(force)
71 , m_absoluteLocation(absoluteLocation)
72 {
73 ScriptWrappable::init(this);
74 }
75
cloneWithNewTarget(EventTarget * eventTarget) const76 PassRefPtrWillBeRawPtr<Touch> Touch::cloneWithNewTarget(EventTarget* eventTarget) const
77 {
78 return adoptRefWillBeNoop(new Touch(eventTarget, m_identifier, m_clientPos, m_screenPos, m_pagePos, m_radius, m_rotationAngle, m_force, m_absoluteLocation));
79 }
80
trace(Visitor * visitor)81 void Touch::trace(Visitor* visitor)
82 {
83 visitor->trace(m_target);
84 }
85
86 } // namespace WebCore
87