OLD | NEW |
1 // Copyright 2017 The Chromium Authors. All rights reserved. | 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "components/ntp_snippets/reading_list/reading_list_suggestions_provider
.h" | 5 #include "components/ntp_snippets/reading_list/reading_list_suggestions_provider
.h" |
6 | 6 |
| 7 #include <algorithm> |
7 #include <vector> | 8 #include <vector> |
8 | 9 |
9 #include "base/bind.h" | 10 #include "base/bind.h" |
| 11 #include "base/strings/utf_string_conversions.h" |
10 #include "base/threading/thread_task_runner_handle.h" | 12 #include "base/threading/thread_task_runner_handle.h" |
11 #include "components/ntp_snippets/category.h" | 13 #include "components/ntp_snippets/category.h" |
12 #include "components/reading_list/core/reading_list_entry.h" | 14 #include "components/reading_list/core/reading_list_entry.h" |
13 #include "components/reading_list/core/reading_list_model.h" | 15 #include "components/reading_list/core/reading_list_model.h" |
14 #include "components/strings/grit/components_strings.h" | 16 #include "components/strings/grit/components_strings.h" |
| 17 #include "components/url_formatter/url_formatter.h" |
15 #include "ui/base/l10n/l10n_util.h" | 18 #include "ui/base/l10n/l10n_util.h" |
16 | 19 |
17 namespace ntp_snippets { | 20 namespace ntp_snippets { |
18 | 21 |
| 22 namespace { |
| 23 // Max number of entries to return. |
| 24 const int kMaxEntries = 3; |
| 25 |
| 26 bool CompareEntries(const ReadingListEntry* lhs, const ReadingListEntry* rhs) { |
| 27 return lhs->UpdateTime() > rhs->UpdateTime(); |
| 28 } |
| 29 } |
| 30 |
19 ReadingListSuggestionsProvider::ReadingListSuggestionsProvider( | 31 ReadingListSuggestionsProvider::ReadingListSuggestionsProvider( |
20 ContentSuggestionsProvider::Observer* observer, | 32 ContentSuggestionsProvider::Observer* observer, |
21 ReadingListModel* reading_list_model) | 33 ReadingListModel* reading_list_model) |
22 : ContentSuggestionsProvider(observer), | 34 : ContentSuggestionsProvider(observer), |
23 category_status_(CategoryStatus::AVAILABLE_LOADING), | 35 category_status_(CategoryStatus::AVAILABLE_LOADING), |
24 provided_category_( | 36 provided_category_( |
25 Category::FromKnownCategory(KnownCategories::READING_LIST)), | 37 Category::FromKnownCategory(KnownCategories::READING_LIST)), |
26 reading_list_model_(reading_list_model) { | 38 reading_list_model_(reading_list_model), |
| 39 scoped_observer_(this) { |
27 observer->OnCategoryStatusChanged(this, provided_category_, category_status_); | 40 observer->OnCategoryStatusChanged(this, provided_category_, category_status_); |
28 reading_list_model->AddObserver(this); | 41 |
29 if (reading_list_model_->loaded()) { | 42 // If the ReadingListModel is loaded, this will trigger a call to |
30 FetchReadingListInternal(); | 43 // ReadingListModelLoaded. Keep it as last instruction. |
31 } | 44 scoped_observer_.Add(reading_list_model_); |
32 } | 45 } |
33 | 46 |
34 ReadingListSuggestionsProvider::~ReadingListSuggestionsProvider() { | 47 ReadingListSuggestionsProvider::~ReadingListSuggestionsProvider(){}; |
35 reading_list_model_->RemoveObserver(this); | |
36 } | |
37 | 48 |
38 CategoryStatus ReadingListSuggestionsProvider::GetCategoryStatus( | 49 CategoryStatus ReadingListSuggestionsProvider::GetCategoryStatus( |
39 Category category) { | 50 Category category) { |
40 DCHECK_EQ(category, provided_category_); | 51 DCHECK_EQ(category, provided_category_); |
41 return category_status_; | 52 return category_status_; |
42 } | 53 } |
43 | 54 |
44 CategoryInfo ReadingListSuggestionsProvider::GetCategoryInfo( | 55 CategoryInfo ReadingListSuggestionsProvider::GetCategoryInfo( |
45 Category category) { | 56 Category category) { |
46 DCHECK_EQ(category, provided_category_); | 57 DCHECK_EQ(category, provided_category_); |
(...skipping 53 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
100 Category category) { | 111 Category category) { |
101 // TODO(crbug.com/702241): Implement this method. | 112 // TODO(crbug.com/702241): Implement this method. |
102 } | 113 } |
103 | 114 |
104 void ReadingListSuggestionsProvider::ReadingListModelLoaded( | 115 void ReadingListSuggestionsProvider::ReadingListModelLoaded( |
105 const ReadingListModel* model) { | 116 const ReadingListModel* model) { |
106 DCHECK(model == reading_list_model_); | 117 DCHECK(model == reading_list_model_); |
107 FetchReadingListInternal(); | 118 FetchReadingListInternal(); |
108 } | 119 } |
109 | 120 |
| 121 void ReadingListSuggestionsProvider::ReadingListModelBeingDeleted( |
| 122 const ReadingListModel* model) { |
| 123 DCHECK(model == reading_list_model_); |
| 124 scoped_observer_.Remove(reading_list_model_); |
| 125 reading_list_model_ = nullptr; |
| 126 } |
| 127 |
110 void ReadingListSuggestionsProvider::FetchReadingListInternal() { | 128 void ReadingListSuggestionsProvider::FetchReadingListInternal() { |
111 // TODO(crbug.com/702241): Implement this method. | 129 if (!reading_list_model_) |
| 130 return; |
| 131 |
| 132 DCHECK(reading_list_model_->loaded()); |
| 133 std::vector<const ReadingListEntry*> entries; |
| 134 for (const GURL& url : reading_list_model_->Keys()) { |
| 135 const ReadingListEntry* entry = reading_list_model_->GetEntryByURL(url); |
| 136 if (!entry->IsRead()) { |
| 137 entries.emplace_back(entry); |
| 138 } |
| 139 } |
| 140 |
| 141 if (entries.size() > kMaxEntries) { |
| 142 // Get the |kMaxEntries| most recent entries. |
| 143 std::partial_sort(entries.begin(), entries.begin() + kMaxEntries, |
| 144 entries.end(), CompareEntries); |
| 145 entries.resize(kMaxEntries); |
| 146 } else { |
| 147 std::sort(entries.begin(), entries.end(), CompareEntries); |
| 148 } |
| 149 |
| 150 std::vector<ContentSuggestion> suggestions; |
| 151 for (const ReadingListEntry* entry : entries) { |
| 152 ContentSuggestion suggestion(provided_category_, entry->URL().spec(), |
| 153 entry->URL()); |
| 154 |
| 155 if (!entry->Title().empty()) { |
| 156 suggestion.set_title(base::UTF8ToUTF16(entry->Title())); |
| 157 } else { |
| 158 suggestion.set_title(url_formatter::FormatUrl(entry->URL())); |
| 159 } |
| 160 suggestion.set_publisher_name( |
| 161 url_formatter::FormatUrl(entry->URL().GetOrigin())); |
| 162 suggestions.emplace_back(std::move(suggestion)); |
| 163 } |
| 164 |
| 165 NotifyStatusChanged(CategoryStatus::AVAILABLE); |
| 166 observer()->OnNewSuggestions(this, provided_category_, |
| 167 std::move(suggestions)); |
| 168 } |
| 169 |
| 170 void ReadingListSuggestionsProvider::NotifyStatusChanged( |
| 171 CategoryStatus new_status) { |
| 172 if (category_status_ == new_status) { |
| 173 return; |
| 174 } |
| 175 category_status_ = new_status; |
| 176 observer()->OnCategoryStatusChanged(this, provided_category_, new_status); |
112 } | 177 } |
113 | 178 |
114 } // namespace ntp_snippets | 179 } // namespace ntp_snippets |
OLD | NEW |