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// 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 ASH_EXAMPLES_CLIENT_CONTROLLED_STATE_UTIL_H_
#define ASH_EXAMPLES_CLIENT_CONTROLLED_STATE_UTIL_H_
#include "ash/ash_export.h"
#include "base/functional/callback.h"
#include "base/functional/callback_helpers.h"
#include "chromeos/ui/base/window_state_type.h"
namespace aura {
class Window;
} // namespace aura
namespace gfx {
class Rect;
} // namespace gfx
namespace ash {
class WindowState;
class ClientControlledState;
// This is defined as a class to access WindowState's private utility clasess.
class ASH_EXPORT ClientControlledStateUtil {
public:
ClientControlledStateUtil() = delete;
using StateChangeRequestCallback =
base::RepeatingCallback<void(WindowState* window_state,
ClientControlledState* state,
chromeos::WindowStateType next_state)>;
using BoundsChangeRequestCallback =
base::RepeatingCallback<void(WindowState* window_state,
ClientControlledState* state,
chromeos::WindowStateType requested_state,
const gfx::Rect& bounds_in_display,
int64_t display_id)>;
// Creates and sets the client controlled window state to the window, whose
// state changes and bounds changes will be applied asynchronosly. Supplied
// callbacks, which are responsible for applying changes, will be called in a
// posted tasks, and they can use `ApplyWindowStateRequest` and
// `ApplyBoundsRequest` method to apply the change. When callbacks are omitted,
// they're called by default.
static void BuildAndSet(
aura::Window* window,
StateChangeRequestCallback state_change_callback = base::NullCallback(),
BoundsChangeRequestCallback bounds_change_callback =
base::NullCallback());
// Applies the window state change request to the `window_state` and
// `client_controlled_state`.
static void ApplyWindowStateRequest(
WindowState* window_state,
ClientControlledState* client_controlled_state,
chromeos::WindowStateType next_state);
// Applies the bounds state change request to the `window_state` and
// `client_controlled_state`.
static void ApplyBoundsRequest(WindowState* window_state,
ClientControlledState* client_controlled_state,
chromeos::WindowStateType requested_state,
const gfx::Rect& bounds_in_display,
int64_t display_id);
};
} // namespace ash
#endif // ASH_EXAMPLES_CLIENT_CONTROLLED_STATE_UTIL_H_
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