gecko-dev/dom/events/PaintRequest.h

80 строки
2.3 KiB
C++

/* -*- 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 {
namespace 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_SCRIPT_HOLDER_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_SCRIPT_HOLDER_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 dom
} // namespace mozilla
#endif // mozilla_dom_PaintRequest_h_