tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

ScrollAreaEvent.cpp (2928B)

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