blob: d938b07b401a14309656f0fbd1677dec489b9663 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
/* -*- 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_ScrollingMetrics_h
#define mozilla_dom_ScrollingMetrics_h
#include "Units.h"
#include "mozilla/MozPromise.h"
#include "mozilla/RefPtr.h"
#include "mozilla/StaticPtr.h"
namespace mozilla {
/**
* ScrollingMetrics records user-intiated scrolling interactions. These are
* aggregrated along with other user interactions (e.g. typing, view time), in
* the history metadata.
*/
class ScrollingMetrics {
public:
using ScrollingMetricsPromise =
MozPromise<Tuple<uint32_t, uint32_t>, bool, true>;
static RefPtr<ScrollingMetricsPromise> CollectScrollingMetrics() {
return GetSingleton()->CollectScrollingMetricsInternal();
}
// Return the tuple of <scrollingTimeInMilliseconds,
// ScrollingDistanceInPixels>
static Tuple<uint32_t, uint32_t> CollectLocalScrollingMetrics() {
return GetSingleton()->CollectLocalScrollingMetricsInternal();
}
// Report a new user-initiated scrolling interaction
static void OnScrollingInteraction(CSSCoord distanceScrolled);
static void OnScrollingInteractionEnded();
private:
static ScrollingMetrics* GetSingleton();
static StaticAutoPtr<ScrollingMetrics> sSingleton;
RefPtr<ScrollingMetricsPromise> CollectScrollingMetricsInternal();
Tuple<uint32_t, uint32_t> CollectLocalScrollingMetricsInternal();
};
} // namespace mozilla
#endif /* mozilla_dom_ScrollingMetrics_h */
|
