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
|
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_NTP_SNIPPETS_READING_LIST_READING_LIST_SUGGESTIONS_PROVIDER_H_
#define COMPONENTS_NTP_SNIPPETS_READING_LIST_READING_LIST_SUGGESTIONS_PROVIDER_H_
#include <set>
#include <string>
#include "base/scoped_observer.h"
#include "components/ntp_snippets/callbacks.h"
#include "components/ntp_snippets/category.h"
#include "components/ntp_snippets/category_info.h"
#include "components/ntp_snippets/category_status.h"
#include "components/ntp_snippets/content_suggestion.h"
#include "components/ntp_snippets/content_suggestions_provider.h"
#include "components/reading_list/core/reading_list_model_observer.h"
class ReadingListModel;
namespace ntp_snippets {
// Provides content suggestions from the Reading List.
class ReadingListSuggestionsProvider : public ContentSuggestionsProvider,
public ReadingListModelObserver {
public:
ReadingListSuggestionsProvider(ContentSuggestionsProvider::Observer* observer,
ReadingListModel* reading_list_model);
~ReadingListSuggestionsProvider() override;
// ContentSuggestionsProvider implementation.
CategoryStatus GetCategoryStatus(Category category) override;
CategoryInfo GetCategoryInfo(Category category) override;
void DismissSuggestion(const ContentSuggestion::ID& suggestion_id) override;
void FetchSuggestionImage(const ContentSuggestion::ID& suggestion_id,
ImageFetchedCallback callback) override;
void FetchSuggestionImageData(const ContentSuggestion::ID& suggestion_id,
ImageDataFetchedCallback callback) override;
void Fetch(const Category& category,
const std::set<std::string>& known_suggestion_ids,
FetchDoneCallback callback) override;
void ClearHistory(
base::Time begin,
base::Time end,
const base::Callback<bool(const GURL& url)>& filter) override;
void ClearCachedSuggestions() override;
void GetDismissedSuggestionsForDebugging(
Category category,
DismissedSuggestionsCallback callback) override;
void ClearDismissedSuggestionsForDebugging(Category category) override;
// ReadingListModelObserver implementation.
void ReadingListModelLoaded(const ReadingListModel* model) override;
void ReadingListModelBeingDeleted(const ReadingListModel* model) override;
void ReadingListDidApplyChanges(ReadingListModel* model) override;
void ReadingListModelCompletedBatchUpdates(
const ReadingListModel* model) override;
private:
// The actual method to fetch Reading List entries. Must be called after the
// model is loaded.
void FetchReadingListInternal();
// Converts |entry| to ContentSuggestion.
ContentSuggestion ConvertEntry(const ReadingListEntry* entry);
// Updates the |category_status_| and notifies the |observer_|, if necessary.
void NotifyStatusChanged(CategoryStatus new_status);
// Sets the dismissed status of the entry to |dismissed|.
void SetDismissedState(const GURL& url, bool dismissed);
CategoryStatus category_status_;
const Category provided_category_;
ReadingListModel* reading_list_model_;
ScopedObserver<ReadingListModel, ReadingListModelObserver> scoped_observer_;
DISALLOW_COPY_AND_ASSIGN(ReadingListSuggestionsProvider);
};
} // namespace ntp_snippets
#endif // COMPONENTS_NTP_SNIPPETS_READING_LIST_READING_LIST_SUGGESTIONS_PROVIDER_H_
|
