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 #ifndef Touch_h 27 #define Touch_h 28 29 #include "bindings/core/v8/ScriptWrappable.h" 30 #include "core/events/EventTarget.h" 31 #include "platform/geometry/FloatPoint.h" 32 #include "platform/geometry/FloatSize.h" 33 #include "platform/geometry/LayoutPoint.h" 34 #include "platform/heap/Handle.h" 35 #include "wtf/PassRefPtr.h" 36 #include "wtf/RefCounted.h" 37 #include "wtf/RefPtr.h" 38 39 namespace blink { 40 41 class LocalFrame; 42 43 class Touch FINAL : public RefCountedWillBeGarbageCollected<Touch>, public ScriptWrappable { 44 DEFINE_WRAPPERTYPEINFO(); 45 public: 46 static PassRefPtrWillBeRawPtr<Touch> create(LocalFrame* frame, EventTarget* target, 47 unsigned identifier, const FloatPoint& screenPos, const FloatPoint& pagePos, 48 const FloatSize& radius, float rotationAngle, float force) 49 { 50 return adoptRefWillBeNoop( 51 new Touch(frame, target, identifier, screenPos, pagePos, radius, rotationAngle, force)); 52 } 53 54 // DOM Touch implementation 55 EventTarget* target() const { return m_target.get(); } 56 unsigned identifier() const { return m_identifier; } 57 double clientX() const { return m_clientPos.x(); } 58 double clientY() const { return m_clientPos.y(); } 59 double screenX() const { return m_screenPos.x(); } 60 double screenY() const { return m_screenPos.y(); } 61 double pageX() const { return m_pagePos.x(); } 62 double pageY() const { return m_pagePos.y(); } 63 double radiusX() const { return m_radius.width(); } 64 double webkitRadiusX() const { return m_radius.width(); } 65 double radiusY() const { return m_radius.height(); } 66 double webkitRadiusY() const { return m_radius.height(); } 67 float webkitRotationAngle() const { return m_rotationAngle; } 68 float force() const { return m_force; } 69 float webkitForce() const { return m_force; } 70 71 // Blink-internal methods 72 const LayoutPoint& absoluteLocation() const { return m_absoluteLocation; } 73 const FloatPoint& screenLocation() const { return m_screenPos; } 74 PassRefPtrWillBeRawPtr<Touch> cloneWithNewTarget(EventTarget*) const; 75 76 void trace(Visitor*); 77 78 private: 79 Touch(LocalFrame* frame, EventTarget* target, unsigned identifier, 80 const FloatPoint& screenPos, const FloatPoint& pagePos, 81 const FloatSize& radius, float rotationAngle, float force); 82 83 Touch(EventTarget*, unsigned identifier, const FloatPoint& clientPos, 84 const FloatPoint& screenPos, const FloatPoint& pagePos, 85 const FloatSize& radius, float rotationAngle, float force, LayoutPoint absoluteLocation); 86 87 RefPtrWillBeMember<EventTarget> m_target; 88 unsigned m_identifier; 89 // Position relative to the viewport in CSS px. 90 FloatPoint m_clientPos; 91 // Position relative to the screen in DIPs. 92 FloatPoint m_screenPos; 93 // Position relative to the page in CSS px. 94 FloatPoint m_pagePos; 95 // Radius in CSS px. 96 FloatSize m_radius; 97 float m_rotationAngle; 98 float m_force; 99 // FIXME(rbyers): Shouldn't we be able to migrate callers to relying on screenPos, pagePos 100 // or clientPos? absoluteLocation appears to be the same as pagePos but without browser 101 // scale applied. 102 LayoutPoint m_absoluteLocation; 103 }; 104 105 } // namespace blink 106 107 #endif // Touch_h 108
