gecko-dev/dom/events/PaintRequest.h

106 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 "nsIDOMEvent.h"
#include "mozilla/Attributes.h"
#include "nsWrapperCache.h"
namespace mozilla {
namespace dom {
class DOMRect;
class PaintRequest final : public nsISupports
, public nsWrapperCache
{
public:
explicit PaintRequest(nsIDOMEvent* 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;
nsIDOMEvent* 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() {}
nsCOMPtr<nsIDOMEvent> mParent;
nsRect mRequest;
};
class PaintRequestList final : public nsISupports,
public nsWrapperCache
{
public:
explicit PaintRequestList(nsIDOMEvent *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() {}
nsTArray< RefPtr<PaintRequest> > mArray;
nsCOMPtr<nsIDOMEvent> mParent;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_PaintRequest_h_