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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_DEVICE_POSTURE_DEVICE_POSTURE_REGISTRY_WATCHER_WIN_H_
#define CONTENT_BROWSER_DEVICE_POSTURE_DEVICE_POSTURE_REGISTRY_WATCHER_WIN_H_
#include <optional>
#include <string_view>
#include <vector>
#include "base/no_destructor.h"
#include "base/observer_list.h"
#include "base/values.h"
#include "base/win/registry.h"
#include "content/browser/device_posture/device_posture_platform_provider_win.h"
#include "content/common/content_export.h"
namespace content {
// This is a singleton class that will fetch and monitor the registry to get
// posture and display feature information.
class DevicePostureRegistryWatcherWin {
public:
static DevicePostureRegistryWatcherWin* GetInstance();
void AddObserver(DevicePosturePlatformProviderWin* observer);
void RemoveObserver(DevicePosturePlatformProviderWin* observer);
DevicePostureRegistryWatcherWin(const DevicePostureRegistryWatcherWin&) =
delete;
DevicePostureRegistryWatcherWin& operator=(
const DevicePostureRegistryWatcherWin&) = delete;
private:
friend class DevicePostureRegistryWatcherWinTest;
friend class base::NoDestructor<DevicePostureRegistryWatcherWin>;
DevicePostureRegistryWatcherWin();
~DevicePostureRegistryWatcherWin();
void OnRegistryKeyChanged();
void ComputeFoldableState(const base::win::RegKey& registry_key,
bool notify_changes);
CONTENT_EXPORT static std::optional<std::vector<gfx::Rect>>
ParseViewportSegments(const base::Value::List& viewport_segments);
CONTENT_EXPORT static std::optional<blink::mojom::DevicePostureType>
ParsePosture(std::string_view posture_state);
base::ObserverList<DevicePosturePlatformProviderWin> observers_;
blink::mojom::DevicePostureType current_posture_ =
blink::mojom::DevicePostureType::kContinuous;
gfx::Rect current_display_feature_bounds_;
// This member is used to watch the registry after StartListening is called.
// It will be destroyed when calling StopListening.
std::optional<base::win::RegKey> registry_key_;
};
} // namespace content
#endif // CONTENT_BROWSER_DEVICE_POSTURE_DEVICE_POSTURE_REGISTRY_WATCHER_WIN_H_
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