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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 ZoomConstraintsClient_h_
#define ZoomConstraintsClient_h_
#include "FrameMetrics.h"
#include "mozilla/Maybe.h"
#include "nsIDOMEventListener.h"
#include "nsIObserver.h"
#include "nsWeakPtr.h"
class nsIDOMEventTarget;
class nsIDocument;
class nsIPresShell;
class ZoomConstraintsClient final : public nsIDOMEventListener,
public nsIObserver
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMEVENTLISTENER
NS_DECL_NSIOBSERVER
ZoomConstraintsClient();
private:
~ZoomConstraintsClient();
public:
void Init(nsIPresShell* aPresShell, nsIDocument *aDocument);
void Destroy();
void ScreenSizeChanged();
private:
void RefreshZoomConstraints();
nsCOMPtr<nsIDocument> mDocument;
nsIPresShell* MOZ_NON_OWNING_REF mPresShell; // raw ref since the presShell owns this
nsCOMPtr<nsIDOMEventTarget> mEventTarget;
mozilla::Maybe<mozilla::layers::ScrollableLayerGuid> mGuid;
};
#endif
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