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// 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 CHROME_BROWSER_ASH_CROSTINI_CROSTINI_SHARED_DEVICES_H_
#define CHROME_BROWSER_ASH_CROSTINI_CROSTINI_SHARED_DEVICES_H_
#include "base/memory/raw_ptr.h"
#include "components/keyed_service/core/keyed_service.h"
#include <string>
#include "base/memory/weak_ptr.h"
#include "base/values.h"
#include "chrome/browser/ash/guest_os/guest_id.h"
#include "chrome/browser/ash/guest_os/guest_os_session_tracker.h"
#include "chromeos/ash/components/dbus/cicerone/cicerone_client.h"
class Profile;
namespace crostini {
// CrostiniSharedDevices keeps track of the sharing status of non-usb devices
// that may be available to containers in a virtual machine (hence "vm_device").
// State is kept in sync with user prefs such that when a container is running
// or starts running, the "true" sharing value as determined by Cicerone is
// reflected in prefs.
class CrostiniSharedDevices : public KeyedService,
public guest_os::ContainerStartedObserver {
public:
explicit CrostiniSharedDevices(Profile* profile);
CrostiniSharedDevices(const CrostiniSharedDevices&) = delete;
CrostiniSharedDevices& operator=(const CrostiniSharedDevices&) = delete;
~CrostiniSharedDevices() override;
// ResultCallback's bool argument is true if the we attempted apply the
// sharing state via Cicerone.
using ResultCallback = base::OnceCallback<void(bool)>;
// Reads user prefs to determine whether a |vm_device| is shared.
// |vm_device| as a string should a lower-case enum name in VmDevice in
// cicerone_service.proto, e.g. "microphone".
bool IsVmDeviceShared(guest_os::GuestId container_id,
const std::string& vm_device);
// Stores |shared| value for |vm_device| in user prefs after attempting to
// apply this to |container_id|. If it could not be set as desired, stores the
// actual sharing value as known to Cicerone.
void SetVmDeviceShared(guest_os::GuestId container_id,
const std::string& vm_device,
bool shared,
ResultCallback callback);
private:
void ApplySharingState(guest_os::GuestId container_id,
base::Value::Dict next_shared_devices,
ResultCallback callback);
// guest_os::ContainerStartedObserver
void OnContainerStarted(const guest_os::GuestId& container_id) override;
void OnUpdateContainerDevices(
const guest_os::GuestId container_id,
base::Value::Dict next_shared_devices,
ResultCallback callback,
std::optional<vm_tools::cicerone::UpdateContainerDevicesResponse>
response);
raw_ptr<Profile> profile_;
base::WeakPtrFactory<CrostiniSharedDevices> weak_ptr_factory_{this};
};
} // namespace crostini
#endif // CHROME_BROWSER_ASH_CROSTINI_CROSTINI_SHARED_DEVICES_H_
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