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 #include "base/basictypes.h"
8 #include "ipc/IPCMessageUtils.h"
9 #include "mozilla/dom/DOMRect.h"
10 #include "mozilla/dom/ScrollAreaEvent.h"
11 #include "mozilla/ContentEvents.h"
12
13 namespace mozilla {
14 namespace dom {
15
ScrollAreaEvent(EventTarget * aOwner,nsPresContext * aPresContext,InternalScrollAreaEvent * aEvent)16 ScrollAreaEvent::ScrollAreaEvent(EventTarget* aOwner,
17 nsPresContext* aPresContext,
18 InternalScrollAreaEvent* aEvent)
19 : UIEvent(aOwner, aPresContext, aEvent), mClientArea(new DOMRect(nullptr)) {
20 mClientArea->SetLayoutRect(aEvent ? aEvent->mArea : nsRect());
21 }
22
NS_IMPL_CYCLE_COLLECTION_INHERITED(ScrollAreaEvent,UIEvent,mClientArea)23 NS_IMPL_CYCLE_COLLECTION_INHERITED(ScrollAreaEvent, UIEvent, mClientArea)
24
25 NS_IMPL_ADDREF_INHERITED(ScrollAreaEvent, UIEvent)
26 NS_IMPL_RELEASE_INHERITED(ScrollAreaEvent, UIEvent)
27
28 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(ScrollAreaEvent)
29 NS_INTERFACE_MAP_END_INHERITING(UIEvent)
30
31 void ScrollAreaEvent::InitScrollAreaEvent(const nsAString& aEventType,
32 bool aCanBubble, bool aCancelable,
33 nsGlobalWindowInner* aView,
34 int32_t aDetail, float aX, float aY,
35 float aWidth, float aHeight) {
36 NS_ENSURE_TRUE_VOID(!mEvent->mFlags.mIsBeingDispatched);
37
38 UIEvent::InitUIEvent(aEventType, aCanBubble, aCancelable, aView, aDetail);
39 mClientArea->SetRect(aX, aY, aWidth, aHeight);
40 }
41
Serialize(IPC::Message * aMsg,bool aSerializeInterfaceType)42 void ScrollAreaEvent::Serialize(IPC::Message* aMsg,
43 bool aSerializeInterfaceType) {
44 if (aSerializeInterfaceType) {
45 IPC::WriteParam(aMsg, NS_LITERAL_STRING("scrollareaevent"));
46 }
47
48 Event::Serialize(aMsg, false);
49
50 IPC::WriteParam(aMsg, X());
51 IPC::WriteParam(aMsg, Y());
52 IPC::WriteParam(aMsg, Width());
53 IPC::WriteParam(aMsg, Height());
54 }
55
Deserialize(const IPC::Message * aMsg,PickleIterator * aIter)56 bool ScrollAreaEvent::Deserialize(const IPC::Message* aMsg,
57 PickleIterator* aIter) {
58 NS_ENSURE_TRUE(Event::Deserialize(aMsg, aIter), false);
59
60 float x, y, width, height;
61 NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &x), false);
62 NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &y), false);
63 NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &width), false);
64 NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &height), false);
65 mClientArea->SetRect(x, y, width, height);
66
67 return true;
68 }
69
70 } // namespace dom
71 } // namespace mozilla
72
73 using namespace mozilla;
74 using namespace mozilla::dom;
75
NS_NewDOMScrollAreaEvent(EventTarget * aOwner,nsPresContext * aPresContext,InternalScrollAreaEvent * aEvent)76 already_AddRefed<ScrollAreaEvent> NS_NewDOMScrollAreaEvent(
77 EventTarget* aOwner, nsPresContext* aPresContext,
78 InternalScrollAreaEvent* aEvent) {
79 RefPtr<ScrollAreaEvent> ev =
80 new ScrollAreaEvent(aOwner, aPresContext, aEvent);
81 return ev.forget();
82 }
83