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
|
// Copyright 2025 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_ASH_COMPONENTS_SETTINGS_CROS_SETTINGS_WAITER_H_
#define CHROMEOS_ASH_COMPONENTS_SETTINGS_CROS_SETTINGS_WAITER_H_
#include <string_view>
#include <vector>
#include "base/containers/span.h"
#include "base/run_loop.h"
namespace base {
class CallbackListSubscription;
} // namespace base
namespace ash {
class CrosSettingsWaiter {
public:
// Sets up the waiter to wait for cros settings specified by `settings`.
// If multiple settings are specified, it stops waiting when any of them
// is updated.
// Global ash::CrosSettings instance must be initialized on creation.
explicit CrosSettingsWaiter(base::span<const std::string_view> settings);
CrosSettingsWaiter(const CrosSettingsWaiter&) = delete;
CrosSettingsWaiter& operator=(const CrosSettingsWaiter&) = delete;
~CrosSettingsWaiter();
// Waits for the update of the settings passed to the ctor.
// Returns true on success.
void Wait();
private:
base::RunLoop run_loop_;
std::vector<base::CallbackListSubscription> subscriptions_;
};
} // namespace ash
#endif // CHROMEOS_ASH_COMPONENTS_SETTINGS_CROS_SETTINGS_WAITER_H_
|
