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// Copyright 2019 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_KEYBOARD_ACCESSORY_ANDROID_ACCESSORY_CONTROLLER_H_
#define CHROME_BROWSER_KEYBOARD_ACCESSORY_ANDROID_ACCESSORY_CONTROLLER_H_
#include <optional>
#include "base/functional/callback_forward.h"
#include "base/types/strong_alias.h"
#include "chrome/browser/keyboard_accessory/android/accessory_sheet_data.h"
#include "components/autofill/core/common/unique_ids.h"
// Interface for the portions of type-specific manual filling controllers (e.g.,
// password, credit card) which interact with the generic
// ManualFillingController.
class AccessoryController {
public:
using IsFillingSourceAvailable =
base::StrongAlias<class IsFillingSourceAvailableTag, bool>;
using FillingSourceObserver =
base::RepeatingCallback<void(AccessoryController*,
IsFillingSourceAvailable)>;
virtual ~AccessoryController() = default;
// Registers the observer that needs to be notified whenever the availability
// or the content of a sheet changes.
virtual void RegisterFillingSourceObserver(
FillingSourceObserver observer) = 0;
// Reurns a std::nullopt if the accessory controller can't provide any data.
// If the controller can provide data, it returns a non-empty sheet that *can*
// be in a loading state while the data is being fetched.
// Use |RegisterFillingSourceObserver()| to repeatedly be notified about
// changes in the sheet data.
virtual std::optional<autofill::AccessorySheetData> GetSheetData() const = 0;
// Triggered when a user selects an item for filling. This handler is
// responsible for propagating it so that it ultimately ends up in the form
// in the content area.
virtual void OnFillingTriggered(
autofill::FieldGlobalId focused_field_id,
const autofill::AccessorySheetField& selection) = 0;
// Triggered when a user selects a passkey.
virtual void OnPasskeySelected(const std::vector<uint8_t>& passkey_id) = 0;
// Triggered when a user selects an option.
virtual void OnOptionSelected(autofill::AccessoryAction selected_action) = 0;
// Triggered when a user changes a toggle.
virtual void OnToggleChanged(autofill::AccessoryAction toggled_action,
bool enabled) = 0;
};
#endif // CHROME_BROWSER_KEYBOARD_ACCESSORY_ANDROID_ACCESSORY_CONTROLLER_H_
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