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 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_AMBIENT_UI_AMBIENT_ANIMATION_SHIELD_CONTROLLER_H_
#define ASH_AMBIENT_UI_AMBIENT_ANIMATION_SHIELD_CONTROLLER_H_
#include <memory>
#include "ash/ash_export.h"
#include "ash/public/cpp/style/color_mode_observer.h"
#include "ash/style/dark_light_mode_controller_impl.h"
#include "base/memory/raw_ptr.h"
#include "base/scoped_observation.h"
namespace views {
class View;
} // namespace views
namespace ash {
// Adds a view containing a dark-mode "shield" to the UI hierarchy whenever dark
// mode is active, and removes it whenever light mode is active. The "shield"
// view's details are up to the caller but is intended to paint some form of
// a "dark" layer on top of the actual contents only when dark mode is active.
//
// The shield UX requirements for animated mode do not overlap enough with the
// gradient-based AmbientShieldView to be re-used.
class ASH_EXPORT AmbientAnimationShieldController : public ColorModeObserver {
public:
AmbientAnimationShieldController(std::unique_ptr<views::View> shield_view,
views::View* parent_view);
AmbientAnimationShieldController(const AmbientAnimationShieldController&) =
delete;
AmbientAnimationShieldController& operator=(
const AmbientAnimationShieldController&) = delete;
~AmbientAnimationShieldController() override;
private:
void OnColorModeChanged(bool dark_mode_enabled) override;
const std::unique_ptr<views::View> shield_view_;
const raw_ptr<views::View> parent_view_;
base::ScopedObservation<DarkLightModeControllerImpl, ColorModeObserver>
color_provider_observer_{this};
};
} // namespace ash
#endif // ASH_AMBIENT_UI_AMBIENT_ANIMATION_SHIELD_CONTROLLER_H_
|
