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