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55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_TelemetryScrollProbe_h
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#define mozilla_dom_TelemetryScrollProbe_h
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#include "nsIDOMEventListener.h"
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class nsIDocument;
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class nsIPresShell;
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class nsIWebNavigation;
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namespace mozilla {
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namespace dom {
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class Event;
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class TabChildGlobal;
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/*
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* A class for implementing a telemetry scroll probe, listens to
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* pagehide events in a frame script context and records the
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* max scroll y, and amount of vertical scrolling that ocurred.
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* for more information see bug 1340904
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*/
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class TelemetryScrollProbe final : public nsIDOMEventListener
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{
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public:
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static void Create(TabChildGlobal* aWebFrame);
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NS_DECL_ISUPPORTS
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NS_DECL_NSIDOMEVENTLISTENER
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private:
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explicit TelemetryScrollProbe(nsWeakPtr aWebNav)
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: mWebNav(aWebNav)
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{ }
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~TelemetryScrollProbe() {}
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already_AddRefed<nsIWebNavigation> GetWebNavigation() const;
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already_AddRefed<nsIDocument> GetDocument() const;
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already_AddRefed<nsIPresShell> GetPresShell() const;
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bool ShouldIgnore(Event* aEvent) const;
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nsWeakPtr mWebNav;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_TelemetryScrollProbe_h
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