80 lines
2.9 KiB
C++
80 lines
2.9 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_PerformanceInteractionMetrics_h__
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#define mozilla_dom_PerformanceInteractionMetrics_h__
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#include "nsHashtablesFwd.h"
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#include "PerformanceEventTiming.h"
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namespace mozilla::dom {
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class PerformanceInteractionMetrics final {
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public:
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PerformanceInteractionMetrics();
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PerformanceInteractionMetrics(const PerformanceInteractionMetrics& aCopy) =
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delete;
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PerformanceInteractionMetrics& operator=(
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const PerformanceInteractionMetrics& aCopy) = delete;
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Maybe<uint64_t> ComputeInteractionId(PerformanceEventTiming* aEventTiming,
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const WidgetEvent* aEvent);
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nsTHashMap<uint32_t, RefPtr<PerformanceEventTiming>>& PendingKeyDowns() {
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return mPendingKeyDowns;
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}
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nsTHashMap<uint32_t, RefPtr<PerformanceEventTiming>>& PendingPointerDowns() {
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return mPendingPointerDowns;
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}
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uint64_t InteractionCount() { return mInteractionCount; }
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uint64_t IncreaseInteractionValueAndCount();
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virtual ~PerformanceInteractionMetrics() = default;
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private:
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// A map of integers to PerformanceEventTimings which is initially empty.
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// https://w3c.github.io/event-timing/#pending-key-downs
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nsTHashMap<uint32_t, RefPtr<PerformanceEventTiming>> mPendingKeyDowns;
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// A map of integers to PerformanceEventTimings which is initially empty.
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// https://w3c.github.io/event-timing/#pending-pointer-downs
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nsTHashMap<uint32_t, RefPtr<PerformanceEventTiming>> mPendingPointerDowns;
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// https://w3c.github.io/event-timing/#pointer-interaction-value-map
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nsTHashMap<uint32_t, uint32_t> mPointerInteractionValueMap;
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// An integer which counts the total number of distinct user interactions,
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// for which there was a unique interactionId computed via computing
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// interactionId.
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// https://w3c.github.io/event-timing/#window-interactioncount
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uint64_t mInteractionCount = 0;
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uint64_t mCurrentInteractionValue;
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Maybe<uint64_t> mLastKeydownInteractionValue;
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};
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inline void ImplCycleCollectionTraverse(
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nsCycleCollectionTraversalCallback& aCallback,
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PerformanceInteractionMetrics& aMetrics, const char* aName,
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uint32_t aFlags = 0) {
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ImplCycleCollectionTraverse(aCallback, aMetrics.PendingKeyDowns(), aName,
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aFlags);
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ImplCycleCollectionTraverse(aCallback, aMetrics.PendingPointerDowns(), aName,
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aFlags);
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}
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inline void ImplCycleCollectionUnlink(PerformanceInteractionMetrics& aMetrics) {
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aMetrics.PendingKeyDowns().Clear();
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aMetrics.PendingPointerDowns().Clear();
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}
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} // namespace mozilla::dom
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#endif // mozilla_dom_PerformanceInteractionMetrics_h__
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