1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef mozilla_dom_UIEvent_h_ 8 #define mozilla_dom_UIEvent_h_ 9 10 #include "mozilla/Attributes.h" 11 #include "mozilla/dom/Event.h" 12 #include "mozilla/dom/UIEventBinding.h" 13 #include "nsDeviceContext.h" 14 #include "nsIDOMUIEvent.h" 15 #include "nsLayoutUtils.h" 16 #include "nsPresContext.h" 17 18 class nsINode; 19 20 namespace mozilla { 21 namespace dom { 22 23 class UIEvent : public Event, public nsIDOMUIEvent { 24 public: 25 UIEvent(EventTarget* aOwner, nsPresContext* aPresContext, 26 WidgetGUIEvent* aEvent); 27 28 NS_DECL_ISUPPORTS_INHERITED 29 NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(UIEvent, Event) 30 31 // nsIDOMUIEvent Interface 32 NS_DECL_NSIDOMUIEVENT 33 34 // Forward to Event 35 NS_FORWARD_TO_EVENT_NO_SERIALIZATION_NO_DUPLICATION 36 using Event::GetCurrentTarget; // Because the forwarding thing shadows it. 37 NS_IMETHOD DuplicatePrivateData() override; 38 NS_IMETHOD_(void) 39 Serialize(IPC::Message* aMsg, bool aSerializeInterfaceType) override; 40 NS_IMETHOD_(bool) 41 Deserialize(const IPC::Message* aMsg, PickleIterator* aIter) override; 42 43 static already_AddRefed<UIEvent> Constructor(const GlobalObject& aGlobal, 44 const nsAString& aType, 45 const UIEventInit& aParam, 46 ErrorResult& aRv); 47 WrapObjectInternal(JSContext * aCx,JS::Handle<JSObject * > aGivenProto)48 virtual JSObject* WrapObjectInternal( 49 JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override { 50 return UIEventBinding::Wrap(aCx, this, aGivenProto); 51 } 52 53 void InitUIEvent(const nsAString& typeArg, bool canBubbleArg, 54 bool cancelableArg, nsGlobalWindowInner* viewArg, 55 int32_t detailArg); 56 GetView()57 nsPIDOMWindowOuter* GetView() const { return mView; } 58 Detail()59 int32_t Detail() const { return mDetail; } 60 LayerX()61 int32_t LayerX() const { return GetLayerPoint().x; } 62 LayerY()63 int32_t LayerY() const { return GetLayerPoint().y; } 64 65 int32_t PageX() const; 66 int32_t PageY() const; 67 68 virtual uint32_t Which(CallerType aCallerType = CallerType::System) { 69 MOZ_ASSERT(mEvent->mClass != eKeyboardEventClass, 70 "Key events should override Which()"); 71 MOZ_ASSERT(mEvent->mClass != eMouseEventClass, 72 "Mouse events should override Which()"); 73 return 0; 74 } 75 76 already_AddRefed<nsINode> GetRangeParent(); 77 78 int32_t RangeOffset() const; 79 80 protected: ~UIEvent()81 ~UIEvent() {} 82 83 // Internal helper functions 84 nsIntPoint GetMovementPoint(); 85 nsIntPoint GetLayerPoint() const; 86 87 nsCOMPtr<nsPIDOMWindowOuter> mView; 88 int32_t mDetail; 89 CSSIntPoint mClientPoint; 90 // Screenpoint is mEvent->mRefPoint. 91 nsIntPoint mLayerPoint; 92 CSSIntPoint mPagePoint; 93 nsIntPoint mMovementPoint; 94 bool mIsPointerLocked; 95 CSSIntPoint mLastClientPoint; 96 97 static Modifiers ComputeModifierState(const nsAString& aModifiersList); 98 bool GetModifierStateInternal(const nsAString& aKey); 99 void InitModifiers(const EventModifierInit& aParam); 100 }; 101 102 } // namespace dom 103 } // namespace mozilla 104 105 #define NS_FORWARD_TO_UIEVENT \ 106 NS_FORWARD_NSIDOMUIEVENT(UIEvent::) \ 107 NS_FORWARD_TO_EVENT_NO_SERIALIZATION_NO_DUPLICATION \ 108 using Event::GetCurrentTarget; /* Forwarding shadows */ \ 109 NS_IMETHOD DuplicatePrivateData() override { \ 110 return UIEvent::DuplicatePrivateData(); \ 111 } \ 112 NS_IMETHOD_(void) \ 113 Serialize(IPC::Message* aMsg, bool aSerializeInterfaceType) override { \ 114 UIEvent::Serialize(aMsg, aSerializeInterfaceType); \ 115 } \ 116 NS_IMETHOD_(bool) \ 117 Deserialize(const IPC::Message* aMsg, PickleIterator* aIter) override { \ 118 return UIEvent::Deserialize(aMsg, aIter); \ 119 } 120 121 already_AddRefed<mozilla::dom::UIEvent> NS_NewDOMUIEvent( 122 mozilla::dom::EventTarget* aOwner, nsPresContext* aPresContext, 123 mozilla::WidgetGUIEvent* aEvent); 124 125 #endif // mozilla_dom_UIEvent_h_ 126