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
|
// Copyright 2018 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_AUTOCOMPLETE_CONTROLLER_EMITTER_H_
#define COMPONENTS_OMNIBOX_BROWSER_AUTOCOMPLETE_CONTROLLER_EMITTER_H_
#include "base/observer_list.h"
#include "build/build_config.h"
#include "components/keyed_service/core/keyed_service.h"
#include "components/omnibox/browser/autocomplete_controller.h"
class AutocompleteInput;
class AutocompleteResult;
// This KeyedService is meant to observe multiple AutocompleteController
// instances and forward the notifications to its own observers.
// Its main purpose is to act as a bridge between the chrome://omnibox WebUI
// handler, and the many usages of AutocompleteController (Views, NTP, Android).
class AutocompleteControllerEmitter : public KeyedService,
public AutocompleteController::Observer {
public:
AutocompleteControllerEmitter();
~AutocompleteControllerEmitter() override;
AutocompleteControllerEmitter(const AutocompleteControllerEmitter&) = delete;
AutocompleteControllerEmitter& operator=(
const AutocompleteControllerEmitter&) = delete;
// Add/remove observer.
void AddObserver(AutocompleteController::Observer* observer);
void RemoveObserver(AutocompleteController::Observer* observer);
// AutocompleteController::Observer:
void OnStart(AutocompleteController* controller,
const AutocompleteInput& input) override;
void OnResultChanged(AutocompleteController* controller,
bool default_match_changed) override;
void OnMlScored(AutocompleteController* controller,
const AutocompleteResult& result) override;
private:
base::ObserverList<AutocompleteController::Observer> observers_;
};
#endif // COMPONENTS_OMNIBOX_BROWSER_AUTOCOMPLETE_CONTROLLER_EMITTER_H_
|
