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
|
// Copyright 2021 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_OMNIBOX_BROWSER_OMNIBOX_SUGGESTIONS_WATCHER_H_
#define COMPONENTS_OMNIBOX_BROWSER_OMNIBOX_SUGGESTIONS_WATCHER_H_
#include "base/observer_list.h"
#include "base/observer_list_types.h"
#include "build/build_config.h"
#include "components/keyed_service/core/keyed_service.h"
#include "components/omnibox/browser/extension_suggestion.h"
// This KeyedService is meant to observe omnibox suggestions and provide
// notifications to observers on suggestion changes.
//
// This watcher is part of the Omnibox Extensions API.
class OmniboxSuggestionsWatcher : public KeyedService {
public:
class Observer : public base::CheckedObserver {
public:
virtual void OnOmniboxSuggestionsReady(
const std::vector<ExtensionSuggestion>& suggestions,
const int request_id,
const std::string& extension_id) {}
virtual void OnOmniboxDefaultSuggestionChanged() {}
};
OmniboxSuggestionsWatcher();
~OmniboxSuggestionsWatcher() override;
OmniboxSuggestionsWatcher(const OmniboxSuggestionsWatcher&) = delete;
OmniboxSuggestionsWatcher& operator=(const OmniboxSuggestionsWatcher&) =
delete;
void NotifySuggestionsReady(
const std::vector<ExtensionSuggestion>& suggestions,
const int request_id,
const std::string& extension_id);
void NotifyDefaultSuggestionChanged();
// Add/remove observer.
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
private:
base::ObserverList<Observer> observers_;
};
#endif // COMPONENTS_OMNIBOX_BROWSER_OMNIBOX_SUGGESTIONS_WATCHER_H_
|
