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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include <string>
#include "ash/ash_export.h"
#include "base/callback.h"
#include "base/strings/string16.h"
#include "chromeos/services/multidevice_setup/public/mojom/multidevice_setup.mojom-forward.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "services/content/public/mojom/navigable_contents_factory.mojom-forward.h"
#include "services/device/public/mojom/bluetooth_system.mojom-forward.h"
#include "services/device/public/mojom/fingerprint.mojom-forward.h"
#include "services/media_session/public/mojom/media_session_service.mojom-forward.h"
#include "ui/gfx/native_widget_types.h"
namespace aura {
class Window;
namespace ash {
class AccessibilityDelegate;
class ScreenshotDelegate;
class BackGestureContextualNudgeDelegate;
class BackGestureContextualNudgeController;
// Delegate of the Shell.
class ASH_EXPORT ShellDelegate {
// The Shell owns the delegate.
virtual ~ShellDelegate() {}
// Returns true if |window| can be shown for the delegate's concept of current
// user.
virtual bool CanShowWindowForUser(const aura::Window* window) const = 0;
// TODO(jamescook): Replace with a mojo-compatible interface.
virtual std::unique_ptr<ScreenshotDelegate> CreateScreenshotDelegate() = 0;
// Creates a accessibility delegate. Shell takes ownership of the delegate.
virtual AccessibilityDelegate* CreateAccessibilityDelegate() = 0;
// Creates a back gesture contextual nudge delegate for |controller|.
virtual std::unique_ptr<BackGestureContextualNudgeDelegate>
BackGestureContextualNudgeController* controller) = 0;
// Check whether the current tab of the browser window can go back.
virtual bool CanGoBack(gfx::NativeWindow window) const = 0;
// Binds a BluetoothSystemFactory receiver if possible.
virtual void BindBluetoothSystemFactory(
mojo::PendingReceiver<device::mojom::BluetoothSystemFactory> receiver) {}
// Binds a fingerprint receiver in the Device Service if possible.
virtual void BindFingerprint(
mojo::PendingReceiver<device::mojom::Fingerprint> receiver) {}
// Binds a NavigableContentsFactory receiver for the current active user.
virtual void BindNavigableContentsFactory(
receiver) = 0;
// Binds a MultiDeviceSetup receiver for the primary profile.
virtual void BindMultiDeviceSetup(
chromeos::multidevice_setup::mojom::MultiDeviceSetup> receiver) = 0;
// Returns an interface to the Media Session service, or null if not
// available.
virtual media_session::mojom::MediaSessionService* GetMediaSessionService();
virtual void OpenKeyboardShortcutHelpPage() const {}
} // namespace ash