PaintRequest.h - mozsearch

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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_PaintRequest_h_

#define mozilla_dom_PaintRequest_h_

#include "nsPresContext.h"

#include "mozilla/Attributes.h"

#include "mozilla/RefPtr.h"

#include "mozilla/dom/Event.h"

#include "nsWrapperCache.h"

namespace mozilla::dom {

class DOMRect;

class PaintRequest final : public nsISupports, public nsWrapperCache {

 public:

  explicit PaintRequest(Event* aParent) : mParent(aParent) {}

  NS_DECL_CYCLE_COLLECTING_ISUPPORTS

  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(PaintRequest)

  virtual JSObject* WrapObject(JSContext* aCx,

                               JS::Handle<JSObject*> aGivenProto) override;

  Event* GetParentObject() const { return mParent; }

  already_AddRefed<DOMRect> ClientRect();

  void GetReason(nsAString& aResult) const { aResult.AssignLiteral("repaint"); }

  void SetRequest(const nsRect& aRequest) { mRequest = aRequest; }

 private:

  ~PaintRequest() = default;

  RefPtr<Event> mParent;

  nsRect mRequest;

};

class PaintRequestList final : public nsISupports, public nsWrapperCache {

 public:

  explicit PaintRequestList(Event* aParent) : mParent(aParent) {}

  NS_DECL_CYCLE_COLLECTING_ISUPPORTS

  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(PaintRequestList)

  virtual JSObject* WrapObject(JSContext* aCx,

                               JS::Handle<JSObject*> aGivenProto) override;

  nsISupports* GetParentObject() { return mParent; }

  void Append(PaintRequest* aElement) { mArray.AppendElement(aElement); }

  uint32_t Length() { return mArray.Length(); }

  PaintRequest* Item(uint32_t aIndex) { return mArray.SafeElementAt(aIndex); }

  PaintRequest* IndexedGetter(uint32_t aIndex, bool& aFound) {

    aFound = aIndex < mArray.Length();

    if (!aFound) {

      return nullptr;

    return mArray.ElementAt(aIndex);

 private:

  ~PaintRequestList() = default;

  nsTArray<RefPtr<PaintRequest> > mArray;

  RefPtr<Event> mParent;

};

}  // namespace mozilla::dom

#endif  // mozilla_dom_PaintRequest_h_