Quelle  FocusEvent.cpp

/* 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/. */

#include "mozilla/dom/FocusEvent.h"

#include "mozilla/ContentEvents.h"
#include "prtime.h"

namespace mozilla::dom {

FocusEvent::FocusEvent(EventTarget* aOwner, nsPresContext* aPresContext,
                       InternalFocusEvent* aEvent)
    : UIEvent(aOwner, aPresContext,
              aEvent ? aEvent : new InternalFocusEvent(false, eFocus)) {
  if (aEvent) {
    mEventIsInternal = false;
  } else {
    mEventIsInternal = true;
  }
}

already_AddRefed<EventTarget> FocusEvent::GetRelatedTarget() {
  return EnsureWebAccessibleRelatedTarget(
      mEvent->AsFocusEvent()->mRelatedTarget);
}

void FocusEvent::InitFocusEvent(const nsAString& aType, bool aCanBubble,
                                bool aCancelable, nsGlobalWindowInner* aView,
                                int32_t aDetail, EventTarget* aRelatedTarget) {
  MOZ_ASSERT(!mEvent->mFlags.mIsBeingDispatched);

  UIEvent::InitUIEvent(aType, aCanBubble, aCancelable, aView, aDetail);
  mEvent->AsFocusEvent()->mRelatedTarget = aRelatedTarget;
}

already_AddRefed<FocusEvent> FocusEvent::Constructor(
    const GlobalObject& aGlobal, const nsAString& aType,
    const FocusEventInit& aParam) {
  nsCOMPtr<EventTarget> t = do_QueryInterface(aGlobal.GetAsSupports());
  RefPtr<FocusEvent> e = new FocusEvent(t, nullptr, nullptr);
  bool trusted = e->Init(t);
  e->InitFocusEvent(aType, aParam.mBubbles, aParam.mCancelable, aParam.mView,
                    aParam.mDetail, aParam.mRelatedTarget);
  e->SetTrusted(trusted);
  e->SetComposed(aParam.mComposed);
  return e.forget();
}

}  // namespace mozilla::dom

using namespace mozilla;
using namespace mozilla::dom;

already_AddRefed<FocusEvent> NS_NewDOMFocusEvent(EventTarget* aOwner,
                                                 nsPresContext* aPresContext,
                                                 InternalFocusEvent* aEvent) {
  RefPtr<FocusEvent> it = new FocusEvent(aOwner, aPresContext, aEvent);
  return it.forget();
}