gecko-dev/layout/base/ZoomConstraintsClient.h
Masayuki Nakano f5737567dd Bug 1544343 - part 3: Make layout use mozilla::PresShell instead of nsIPresShell as far as possible r=emilio
This patch changes remaining things under `layout/`.  However, there are some
places which still need to use `nsIPresShell`.  That will be fixed in a
follow up bug.

Differential Revision: https://phabricator.services.mozilla.com/D27477

--HG--
extra : moz-landing-system : lando
2019-04-16 07:25:10 +00:00

51 lines
1.3 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 ZoomConstraintsClient_h_
#define ZoomConstraintsClient_h_
#include "mozilla/layers/ScrollableLayerGuid.h"
#include "mozilla/Maybe.h"
#include "nsCOMPtr.h"
#include "nsIDOMEventListener.h"
#include "nsIObserver.h"
namespace mozilla {
class PresShell;
namespace dom {
class EventTarget;
} // namespace dom
} // namespace mozilla
class ZoomConstraintsClient final : public nsIDOMEventListener,
public nsIObserver {
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMEVENTLISTENER
NS_DECL_NSIOBSERVER
ZoomConstraintsClient();
private:
~ZoomConstraintsClient();
public:
void Init(mozilla::PresShell* aPresShell, mozilla::dom::Document* aDocument);
void Destroy();
void ScreenSizeChanged();
private:
void RefreshZoomConstraints();
RefPtr<mozilla::dom::Document> mDocument;
// raw ref since the presShell owns this
mozilla::PresShell* MOZ_NON_OWNING_REF mPresShell;
nsCOMPtr<mozilla::dom::EventTarget> mEventTarget;
mozilla::Maybe<mozilla::layers::ScrollableLayerGuid> mGuid;
};
#endif