Quelle  NotifyPaintEvent.h

/* 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_NotifyPaintEvent_h_
#define mozilla_dom_NotifyPaintEvent_h_

#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/dom/Event.h"
#include "mozilla/dom/NotifyPaintEventBinding.h"
#include "nsDOMNavigationTiming.h"
#include "nsPresContext.h"

namespace mozilla::dom {

class DOMRect;
class DOMRectList;
class PaintRequestList;

class NotifyPaintEvent : public Event {
 public:
  NotifyPaintEvent(EventTarget* aOwner, nsPresContext* aPresContext,
                   WidgetEvent* aEvent, EventMessage aEventMessage,
                   nsTArray<nsRect>* aInvalidateRequests,
                   uint64_t aTransactionId, DOMHighResTimeStamp aTimeStamp);

  NS_INLINE_DECL_REFCOUNTING_INHERITED(NotifyPaintEvent, Event)

  void Serialize(IPC::MessageWriter* aWriter,
                 bool aSerializeInterfaceType) override;
  bool Deserialize(IPC::MessageReader* aReader) override;

  virtual JSObject* WrapObjectInternal(
      JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override {
    return NotifyPaintEvent_Binding::Wrap(aCx, this, aGivenProto);
  }

  already_AddRefed<DOMRectList> ClientRects(SystemCallerGuarantee aGuarantee);

  already_AddRefed<DOMRect> BoundingClientRect(
      SystemCallerGuarantee aGuarantee);

  already_AddRefed<PaintRequestList> PaintRequests(SystemCallerGuarantee);

  uint64_t TransactionId(SystemCallerGuarantee);

  DOMHighResTimeStamp PaintTimeStamp(SystemCallerGuarantee);

 protected:
  ~NotifyPaintEvent() = default;

 private:
  nsRegion GetRegion(SystemCallerGuarantee);

  nsTArray<nsRect> mInvalidateRequests;
  uint64_t mTransactionId;
  DOMHighResTimeStamp mTimeStamp;
};

}  // namespace mozilla::dom

// This empties aInvalidateRequests.
already_AddRefed<mozilla::dom::NotifyPaintEvent> NS_NewDOMNotifyPaintEvent(
    mozilla::dom::EventTarget* aOwner, nsPresContext* aPresContext,
    mozilla::WidgetEvent* aEvent,
    mozilla::EventMessage aEventMessage = mozilla::eVoidEvent,
    nsTArray<nsRect>* aInvalidateRequests = nullptr,
    uint64_t aTransactionId = 0, DOMHighResTimeStamp aTimeStamp = 0);

#endif  // mozilla_dom_NotifyPaintEvent_h_