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| 1 /* | |
| 2 * Copyright (C) 2001 Peter Kelly (pmk@post.com) | |
| 3 * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de) | |
| 4 * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com) | |
| 5 * Copyright (C) 2003, 2004, 2005, 2006 Apple Computer, Inc. | |
| 6 * | |
| 7 * This library is free software; you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Library General Public | |
| 9 * License as published by the Free Software Foundation; either | |
| 10 * version 2 of the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This library is distributed in the hope that it will be useful, | |
| 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Library General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Library General Public License | |
| 18 * along with this library; see the file COPYING.LIB. If not, write to | |
| 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
| 20 * Boston, MA 02110-1301, USA. | |
| 21 * | |
| 22 */ | |
| 23 | |
| 24 #ifndef MouseRelatedEvent_h | |
| 25 #define MouseRelatedEvent_h | |
| 26 | |
| 27 #include "core/CoreExport.h" | |
| 28 #include "core/events/MouseEventInit.h" | |
| 29 #include "core/events/UIEventWithKeyState.h" | |
| 30 #include "platform/geometry/LayoutPoint.h" | |
| 31 | |
| 32 namespace blink { | |
| 33 | |
| 34 // Internal only: Helper class for what's common between mouse and wheel events. | |
| 35 class CORE_EXPORT MouseRelatedEvent : public UIEventWithKeyState { | |
| 36 public: | |
| 37 enum class PositionType { | |
| 38 Position, | |
| 39 // Positionless mouse events are used, for example, for 'click' events from | |
| 40 // keyboard input. It's kind of surprising for a mouse event not to have a | |
| 41 // position. | |
| 42 Positionless | |
| 43 }; | |
| 44 | |
| 45 // Note that these values are adjusted to counter the effects of zoom, so that | |
| 46 // values exposed via DOM APIs are invariant under zooming. | |
| 47 // TODO(mustaq): Remove the PointerEvent specific code when mouse has | |
| 48 // fractional coordinates. See crbug.com/655786. | |
| 49 double screenX() const { | |
| 50 return isPointerEvent() ? m_screenLocation.x() | |
| 51 : static_cast<int>(m_screenLocation.x()); | |
| 52 } | |
| 53 double screenY() const { | |
| 54 return isPointerEvent() ? m_screenLocation.y() | |
| 55 : static_cast<int>(m_screenLocation.y()); | |
| 56 } | |
| 57 | |
| 58 double clientX() const { | |
| 59 return isPointerEvent() ? m_clientLocation.x() | |
| 60 : static_cast<int>(m_clientLocation.x()); | |
| 61 } | |
| 62 double clientY() const { | |
| 63 return isPointerEvent() ? m_clientLocation.y() | |
| 64 : static_cast<int>(m_clientLocation.y()); | |
| 65 } | |
| 66 | |
| 67 int movementX() const { return m_movementDelta.x(); } | |
| 68 int movementY() const { return m_movementDelta.y(); } | |
| 69 | |
| 70 int layerX(); | |
| 71 int layerY(); | |
| 72 | |
| 73 int offsetX(); | |
| 74 int offsetY(); | |
| 75 | |
| 76 double pageX() const { | |
| 77 return isPointerEvent() ? m_pageLocation.x() | |
| 78 : static_cast<int>(m_pageLocation.x()); | |
| 79 } | |
| 80 double pageY() const { | |
| 81 return isPointerEvent() ? m_pageLocation.y() | |
| 82 : static_cast<int>(m_pageLocation.y()); | |
| 83 } | |
| 84 | |
| 85 double x() const { return clientX(); } | |
| 86 double y() const { return clientY(); } | |
| 87 | |
| 88 bool hasPosition() const { return m_positionType == PositionType::Position; } | |
| 89 | |
| 90 // Page point in "absolute" coordinates (i.e. post-zoomed, page-relative | |
| 91 // coords, usable with LayoutObject::absoluteToLocal) relative to view(), i.e. | |
| 92 // the local frame. | |
| 93 const DoublePoint& absoluteLocation() const { return m_absoluteLocation; } | |
| 94 | |
| 95 DECLARE_VIRTUAL_TRACE(); | |
| 96 | |
| 97 protected: | |
| 98 MouseRelatedEvent(); | |
| 99 // TODO(lanwei): Will make this argument non-optional and all the callers need | |
| 100 // to provide sourceCapabilities even when it is null, see | |
| 101 // https://crbug.com/476530. | |
| 102 MouseRelatedEvent(const AtomicString& type, | |
| 103 bool canBubble, | |
| 104 bool cancelable, | |
| 105 AbstractView*, | |
| 106 int detail, | |
| 107 const IntPoint& screenLocation, | |
| 108 const IntPoint& rootFrameLocation, | |
| 109 const IntPoint& movementDelta, | |
| 110 PlatformEvent::Modifiers, | |
| 111 TimeTicks platformTimeStamp, | |
| 112 PositionType, | |
| 113 InputDeviceCapabilities* sourceCapabilities = nullptr); | |
| 114 | |
| 115 MouseRelatedEvent(const AtomicString& type, | |
| 116 const MouseEventInit& initializer); | |
| 117 | |
| 118 void initCoordinates(const double clientX, const double clientY); | |
| 119 void receivedTarget() final; | |
| 120 | |
| 121 void computePageLocation(); | |
| 122 void computeRelativePosition(); | |
| 123 | |
| 124 // Expose these so MouseEvent::initMouseEvent can set them. | |
| 125 DoublePoint m_screenLocation; | |
| 126 DoublePoint m_clientLocation; | |
| 127 DoublePoint m_movementDelta; | |
| 128 | |
| 129 private: | |
| 130 DoublePoint m_pageLocation; | |
| 131 DoublePoint m_layerLocation; | |
| 132 DoublePoint m_offsetLocation; | |
| 133 DoublePoint m_absoluteLocation; | |
| 134 PositionType m_positionType; | |
| 135 bool m_hasCachedRelativePosition; | |
| 136 }; | |
| 137 | |
| 138 } // namespace blink | |
| 139 | |
| 140 #endif // MouseRelatedEvent_h | |
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Chromium Code Reviews
Issue 2580083002:
Remove MouseRelatedEvent (Closed)
