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
|
// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_COMPONENTS_QUICK_ANSWERS_UTILS_SPELL_CHECKER_H_
#define CHROMEOS_COMPONENTS_QUICK_ANSWERS_UTILS_SPELL_CHECKER_H_
#include <memory>
#include <string>
#include "base/memory/weak_ptr.h"
#include "base/scoped_observation.h"
#include "chromeos/components/quick_answers/public/cpp/quick_answers_prefs.h"
#include "chromeos/components/quick_answers/public/cpp/quick_answers_state.h"
#include "chromeos/components/quick_answers/utils/spell_check_language.h"
#include "mojo/public/cpp/bindings/remote.h"
namespace network {
class SharedURLLoaderFactory;
} // namespace network
namespace quick_answers {
// Utility class for spell check.
class SpellChecker : public QuickAnswersStateObserver {
public:
using CheckSpellingCallback =
base::OnceCallback<void(bool, const std::string&)>;
using SpellCheckLanguageIterator =
std::vector<std::unique_ptr<SpellCheckLanguage>>::iterator;
explicit SpellChecker(
scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory);
SpellChecker(const SpellChecker&) = delete;
SpellChecker& operator=(const SpellChecker&) = delete;
~SpellChecker() override;
// Check spelling of the given word, run |callback| with true if the word is
// spelled correctly. Virtual for testing.
virtual void CheckSpelling(const std::string& word,
CheckSpellingCallback callback);
// QuickAnswersStateObserver:
void OnSettingsEnabled(bool enabled) override;
void OnConsentStatusUpdated(prefs::ConsentStatus status) override;
void OnApplicationLocaleReady(const std::string& locale) override;
void OnPreferredLanguagesChanged(
const std::string& preferred_languages) override;
void OnEligibilityChanged(bool eligible) override;
void OnPrefsInitialized() override;
base::WeakPtr<SpellChecker> GetWeakPtr() {
return weak_factory_.GetWeakPtr();
}
std::vector<std::unique_ptr<SpellCheckLanguage>>&
GetSpellcheckLanguagesForTesting() {
return spellcheck_languages_;
}
private:
// Check feature eligibility and correspondingly update languages list. If
// |should_recreate_languages_list| is false, languages list will not be
// updated as long as feature eligibility stay unchanged.
// Called when the Quick answers states are updated.
void CheckEligibilityAndUpdateLanguages(bool should_recreate_languages_list);
// Collect spell check results from the language indicated by |iterator|. Run
// |callback| with true if the word is found in the current language,
// otherwise continue to check the next language.
void CollectResults(const std::string& word,
CheckSpellingCallback callback,
SpellCheckLanguageIterator iterator,
const std::string& language,
int languages_list_version,
bool is_correct);
scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory_;
// List of spell check languages.
std::vector<std::unique_ptr<SpellCheckLanguage>> spellcheck_languages_;
// Version of the languages list to invalidate pending calls if the languages
// has ben updated.
int languages_list_version_ = 0;
base::ScopedObservation<QuickAnswersState, QuickAnswersStateObserver>
quick_answers_state_observation_{this};
base::WeakPtrFactory<SpellChecker> weak_factory_{this};
};
} // namespace quick_answers
#endif // CHROMEOS_COMPONENTS_QUICK_ANSWERS_UTILS_SPELL_CHECKER_H_
|
