1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/events/UIEvent.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,193 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef mozilla_dom_UIEvent_h_
1.10 +#define mozilla_dom_UIEvent_h_
1.11 +
1.12 +#include "mozilla/Attributes.h"
1.13 +#include "mozilla/dom/Event.h"
1.14 +#include "mozilla/dom/UIEventBinding.h"
1.15 +#include "nsDeviceContext.h"
1.16 +#include "nsIDOMUIEvent.h"
1.17 +#include "nsLayoutUtils.h"
1.18 +#include "nsPresContext.h"
1.19 +
1.20 +class nsINode;
1.21 +
1.22 +namespace mozilla {
1.23 +namespace dom {
1.24 +
1.25 +class UIEvent : public Event,
1.26 + public nsIDOMUIEvent
1.27 +{
1.28 +public:
1.29 + UIEvent(EventTarget* aOwner,
1.30 + nsPresContext* aPresContext,
1.31 + WidgetGUIEvent* aEvent);
1.32 +
1.33 + NS_DECL_ISUPPORTS_INHERITED
1.34 + NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(UIEvent, Event)
1.35 +
1.36 + // nsIDOMUIEvent Interface
1.37 + NS_DECL_NSIDOMUIEVENT
1.38 +
1.39 + // Forward to Event
1.40 + NS_FORWARD_TO_EVENT_NO_SERIALIZATION_NO_DUPLICATION
1.41 + NS_IMETHOD DuplicatePrivateData() MOZ_OVERRIDE;
1.42 + NS_IMETHOD_(void) Serialize(IPC::Message* aMsg, bool aSerializeInterfaceType) MOZ_OVERRIDE;
1.43 + NS_IMETHOD_(bool) Deserialize(const IPC::Message* aMsg, void** aIter) MOZ_OVERRIDE;
1.44 +
1.45 + static nsIntPoint CalculateScreenPoint(nsPresContext* aPresContext,
1.46 + WidgetEvent* aEvent)
1.47 + {
1.48 + if (!aEvent ||
1.49 + (aEvent->eventStructType != NS_MOUSE_EVENT &&
1.50 + aEvent->eventStructType != NS_MOUSE_SCROLL_EVENT &&
1.51 + aEvent->eventStructType != NS_WHEEL_EVENT &&
1.52 + aEvent->eventStructType != NS_DRAG_EVENT &&
1.53 + aEvent->eventStructType != NS_POINTER_EVENT &&
1.54 + aEvent->eventStructType != NS_SIMPLE_GESTURE_EVENT)) {
1.55 + return nsIntPoint(0, 0);
1.56 + }
1.57 +
1.58 + WidgetGUIEvent* event = aEvent->AsGUIEvent();
1.59 + if (!event->widget) {
1.60 + return LayoutDeviceIntPoint::ToUntyped(aEvent->refPoint);
1.61 + }
1.62 +
1.63 + LayoutDeviceIntPoint offset = aEvent->refPoint +
1.64 + LayoutDeviceIntPoint::FromUntyped(event->widget->WidgetToScreenOffset());
1.65 + nscoord factor =
1.66 + aPresContext->DeviceContext()->UnscaledAppUnitsPerDevPixel();
1.67 + return nsIntPoint(nsPresContext::AppUnitsToIntCSSPixels(offset.x * factor),
1.68 + nsPresContext::AppUnitsToIntCSSPixels(offset.y * factor));
1.69 + }
1.70 +
1.71 + static CSSIntPoint CalculateClientPoint(nsPresContext* aPresContext,
1.72 + WidgetEvent* aEvent,
1.73 + CSSIntPoint* aDefaultClientPoint)
1.74 + {
1.75 + if (!aEvent ||
1.76 + (aEvent->eventStructType != NS_MOUSE_EVENT &&
1.77 + aEvent->eventStructType != NS_MOUSE_SCROLL_EVENT &&
1.78 + aEvent->eventStructType != NS_WHEEL_EVENT &&
1.79 + aEvent->eventStructType != NS_DRAG_EVENT &&
1.80 + aEvent->eventStructType != NS_POINTER_EVENT &&
1.81 + aEvent->eventStructType != NS_SIMPLE_GESTURE_EVENT) ||
1.82 + !aPresContext ||
1.83 + !aEvent->AsGUIEvent()->widget) {
1.84 + return aDefaultClientPoint
1.85 + ? *aDefaultClientPoint
1.86 + : CSSIntPoint(0, 0);
1.87 + }
1.88 +
1.89 + nsIPresShell* shell = aPresContext->GetPresShell();
1.90 + if (!shell) {
1.91 + return CSSIntPoint(0, 0);
1.92 + }
1.93 + nsIFrame* rootFrame = shell->GetRootFrame();
1.94 + if (!rootFrame) {
1.95 + return CSSIntPoint(0, 0);
1.96 + }
1.97 + nsPoint pt =
1.98 + nsLayoutUtils::GetEventCoordinatesRelativeTo(aEvent, rootFrame);
1.99 +
1.100 + return CSSIntPoint::FromAppUnitsRounded(pt);
1.101 + }
1.102 +
1.103 + static already_AddRefed<UIEvent> Constructor(const GlobalObject& aGlobal,
1.104 + const nsAString& aType,
1.105 + const UIEventInit& aParam,
1.106 + ErrorResult& aRv);
1.107 +
1.108 + virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE
1.109 + {
1.110 + return UIEventBinding::Wrap(aCx, this);
1.111 + }
1.112 +
1.113 + nsIDOMWindow* GetView() const
1.114 + {
1.115 + return mView;
1.116 + }
1.117 +
1.118 + int32_t Detail() const
1.119 + {
1.120 + return mDetail;
1.121 + }
1.122 +
1.123 + int32_t LayerX() const
1.124 + {
1.125 + return GetLayerPoint().x;
1.126 + }
1.127 +
1.128 + int32_t LayerY() const
1.129 + {
1.130 + return GetLayerPoint().y;
1.131 + }
1.132 +
1.133 + int32_t PageX() const;
1.134 + int32_t PageY() const;
1.135 +
1.136 + virtual uint32_t Which()
1.137 + {
1.138 + MOZ_ASSERT(mEvent->eventStructType != NS_KEY_EVENT,
1.139 + "Key events should override Which()");
1.140 + MOZ_ASSERT(mEvent->eventStructType != NS_MOUSE_EVENT,
1.141 + "Mouse events should override Which()");
1.142 + return 0;
1.143 + }
1.144 +
1.145 + already_AddRefed<nsINode> GetRangeParent();
1.146 +
1.147 + int32_t RangeOffset() const;
1.148 +
1.149 + bool CancelBubble() const
1.150 + {
1.151 + return mEvent->mFlags.mPropagationStopped;
1.152 + }
1.153 +
1.154 + bool IsChar() const;
1.155 +
1.156 +protected:
1.157 + // Internal helper functions
1.158 + nsIntPoint GetMovementPoint();
1.159 + nsIntPoint GetLayerPoint() const;
1.160 +
1.161 + nsCOMPtr<nsIDOMWindow> mView;
1.162 + int32_t mDetail;
1.163 + CSSIntPoint mClientPoint;
1.164 + // Screenpoint is mEvent->refPoint.
1.165 + nsIntPoint mLayerPoint;
1.166 + CSSIntPoint mPagePoint;
1.167 + nsIntPoint mMovementPoint;
1.168 + bool mIsPointerLocked;
1.169 + CSSIntPoint mLastClientPoint;
1.170 +
1.171 + static Modifiers ComputeModifierState(const nsAString& aModifiersList);
1.172 + bool GetModifierStateInternal(const nsAString& aKey);
1.173 +};
1.174 +
1.175 +} // namespace dom
1.176 +} // namespace mozilla
1.177 +
1.178 +#define NS_FORWARD_TO_UIEVENT \
1.179 + NS_FORWARD_NSIDOMUIEVENT(UIEvent::) \
1.180 + NS_FORWARD_TO_EVENT_NO_SERIALIZATION_NO_DUPLICATION \
1.181 + NS_IMETHOD DuplicatePrivateData() \
1.182 + { \
1.183 + return UIEvent::DuplicatePrivateData(); \
1.184 + } \
1.185 + NS_IMETHOD_(void) Serialize(IPC::Message* aMsg, \
1.186 + bool aSerializeInterfaceType) \
1.187 + { \
1.188 + UIEvent::Serialize(aMsg, aSerializeInterfaceType); \
1.189 + } \
1.190 + NS_IMETHOD_(bool) Deserialize(const IPC::Message* aMsg, \
1.191 + void** aIter) \
1.192 + { \
1.193 + return UIEvent::Deserialize(aMsg, aIter); \
1.194 + }
1.195 +
1.196 +#endif // mozilla_dom_UIEvent_h_
