dom/events/ScrollAreaEvent.cpp@97036ab72558
dom/events/ScrollAreaEvent.cpp
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 #include "base/basictypes.h"
7 #include "ipc/IPCMessageUtils.h"
8 #include "mozilla/dom/DOMRect.h"
9 #include "mozilla/dom/ScrollAreaEvent.h"
10 #include "mozilla/ContentEvents.h"
12 namespace mozilla {
13 namespace dom {
15 ScrollAreaEvent::ScrollAreaEvent(EventTarget* aOwner,
16 nsPresContext* aPresContext,
17 InternalScrollAreaEvent* aEvent)
18 : UIEvent(aOwner, aPresContext, aEvent)
19 , mClientArea(nullptr)
20 {
21 mClientArea.SetLayoutRect(aEvent ? aEvent->mArea : nsRect());
22 }
24 NS_IMPL_ADDREF_INHERITED(ScrollAreaEvent, UIEvent)
25 NS_IMPL_RELEASE_INHERITED(ScrollAreaEvent, UIEvent)
27 NS_INTERFACE_MAP_BEGIN(ScrollAreaEvent)
28 NS_INTERFACE_MAP_ENTRY(nsIDOMScrollAreaEvent)
29 NS_INTERFACE_MAP_END_INHERITING(UIEvent)
32 #define FORWARD_GETTER(_name) \
33 NS_IMETHODIMP \
34 ScrollAreaEvent::Get ## _name(float* aResult) \
35 { \
36 *aResult = _name(); \
37 return NS_OK; \
38 }
40 FORWARD_GETTER(X)
41 FORWARD_GETTER(Y)
42 FORWARD_GETTER(Width)
43 FORWARD_GETTER(Height)
45 NS_IMETHODIMP
46 ScrollAreaEvent::InitScrollAreaEvent(const nsAString& aEventType,
47 bool aCanBubble,
48 bool aCancelable,
49 nsIDOMWindow* aView,
50 int32_t aDetail,
51 float aX,
52 float aY,
53 float aWidth,
54 float aHeight)
55 {
56 nsresult rv =
57 UIEvent::InitUIEvent(aEventType, aCanBubble, aCancelable, aView, aDetail);
58 NS_ENSURE_SUCCESS(rv, rv);
60 mClientArea.SetRect(aX, aY, aWidth, aHeight);
62 return NS_OK;
63 }
65 NS_IMETHODIMP_(void)
66 ScrollAreaEvent::Serialize(IPC::Message* aMsg,
67 bool aSerializeInterfaceType)
68 {
69 if (aSerializeInterfaceType) {
70 IPC::WriteParam(aMsg, NS_LITERAL_STRING("scrollareaevent"));
71 }
73 Event::Serialize(aMsg, false);
75 IPC::WriteParam(aMsg, X());
76 IPC::WriteParam(aMsg, Y());
77 IPC::WriteParam(aMsg, Width());
78 IPC::WriteParam(aMsg, Height());
79 }
81 NS_IMETHODIMP_(bool)
82 ScrollAreaEvent::Deserialize(const IPC::Message* aMsg, void** aIter)
83 {
84 NS_ENSURE_TRUE(Event::Deserialize(aMsg, aIter), false);
86 float x, y, width, height;
87 NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &x), false);
88 NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &y), false);
89 NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &width), false);
90 NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &height), false);
91 mClientArea.SetRect(x, y, width, height);
93 return true;
94 }
96 } // namespace dom
97 } // namespace mozilla
99 using namespace mozilla;
100 using namespace mozilla::dom;
102 nsresult
103 NS_NewDOMScrollAreaEvent(nsIDOMEvent** aInstancePtrResult,
104 EventTarget* aOwner,
105 nsPresContext* aPresContext,
106 InternalScrollAreaEvent* aEvent)
107 {
108 ScrollAreaEvent* ev = new ScrollAreaEvent(aOwner, aPresContext, aEvent);
109 return CallQueryInterface(ev, aInstancePtrResult);
110 }
