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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
// Copyright 2011 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_SPELLCHECK_BROWSER_SPELLCHECK_HOST_METRICS_H_
#define COMPONENTS_SPELLCHECK_BROWSER_SPELLCHECK_HOST_METRICS_H_
#include <stddef.h>
#include <string>
#include <unordered_set>
#include "base/time/time.h"
#include "base/timer/timer.h"
#include "build/build_config.h"
#if BUILDFLAG(IS_WIN)
// Simple struct to keep track of how many languages are supported by which
// spell checker.
struct LocalesSupportInfo {
size_t locales_supported_by_hunspell_and_native;
size_t locales_supported_by_hunspell_only;
size_t locales_supported_by_native_only;
size_t unsupported_locales;
};
#endif // BUILDFLAG(IS_WIN)
// A helper object for recording spell-check related histograms.
// This class encapsulates histogram names and metrics API.
// This also carries a set of counters for collecting histograms
// and a timer for making a periodical summary.
//
// We expect a user of SpellCheckHost class to instantiate this object,
// and pass the metrics object to SpellCheckHost's factory method.
//
// metrics.reset(new SpellCheckHostMetrics());
// spell_check_host = SpellChecHost::Create(...., metrics.get());
//
// The lifetime of the object should be managed by a caller,
// and the lifetime should be longer than SpellCheckHost instance
// because SpellCheckHost will use the object.
class SpellCheckHostMetrics {
public:
SpellCheckHostMetrics();
~SpellCheckHostMetrics();
// Collects status of spellchecking enabling state, which is
// to be uploaded via UMA. Intended to be called only for regular
// profiles (not system, guest, incognito, etc.).
void RecordEnabledStats(bool enabled);
// Collects status of spellchecking enabling state, which is
// to be uploaded via UMA
void RecordCheckedWordStats(const std::u16string& word, bool misspell);
// Collects a histogram for misspelled word replacement
// to be uploaded via UMA
void RecordReplacedWordStats(int delta);
// Collects a histogram for context menu showing as a spell correction
// attempt to be uploaded via UMA
void RecordSuggestionStats(int delta);
// Records if spelling service is enabled or disabled. Intended to be called
// only for regular profiles (not system, guest, incognito, etc.).
void RecordSpellingServiceStats(bool enabled);
#if BUILDFLAG(IS_WIN)
// Records spell check support for user-added Chrome languages that are not
// eligible for spell checking (due to the hard-coded spell check locales
// list).
static void RecordAcceptLanguageStats(const LocalesSupportInfo& locales_info);
// Records which spell checker can handle which enabled spell check locales.
static void RecordSpellcheckLanguageStats(
const LocalesSupportInfo& locales_info);
#endif // BUILDFLAG(IS_WIN)
private:
friend class SpellcheckHostMetricsTest;
void OnHistogramTimerExpired();
// Records various counters without changing their values.
void RecordWordCounts();
// Number of corrected words of checked words.
int misspelled_word_count_;
int last_misspelled_word_count_;
// Number of checked words.
int spellchecked_word_count_;
int last_spellchecked_word_count_;
// Number of suggestion list showings.
int suggestion_show_count_;
int last_suggestion_show_count_;
// Number of misspelled words replaced by a user.
int replaced_word_count_;
int last_replaced_word_count_;
// Last recorded number of unique words.
size_t last_unique_word_count_;
// Time when first spellcheck happened.
base::TimeTicks start_time_;
// Set of checked words in the hashed form.
std::unordered_set<std::string> checked_word_hashes_;
base::RepeatingTimer recording_timer_;
};
#endif // COMPONENTS_SPELLCHECK_BROWSER_SPELLCHECK_HOST_METRICS_H_
|
