blob: 292e19cf558f3015c49d50670e9fb4c2c315bd3d [file] [log] [blame]
// 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/device/public/mojom/bluetooth_system.mojom-forward.h"
#include "services/device/public/mojom/fingerprint.mojom-forward.h"
#include "services/media_session/public/cpp/media_session_service.h"
#include "ui/gfx/native_widget_types.h"
namespace aura {
class Window;
namespace ui {
class OSExchangeData;
namespace ash {
class AccessibilityDelegate;
class CaptureModeDelegate;
class ScreenshotDelegate;
class BackGestureContextualNudgeDelegate;
class BackGestureContextualNudgeController;
class NearbyShareController;
class NearbyShareDelegate;
// Delegate of the Shell.
class ASH_EXPORT ShellDelegate {
// The Shell owns the delegate.
virtual ~ShellDelegate() = default;
// Returns true if |window| can be shown for the delegate's concept of current
// user.
virtual bool CanShowWindowForUser(const aura::Window* window) const = 0;
// Creates and returns the delegate of the Capture Mode feature.
virtual std::unique_ptr<CaptureModeDelegate> CreateCaptureModeDelegate()
const = 0;
// Creates the screenshot delegate, which has dependencies on //chrome.
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;
virtual std::unique_ptr<NearbyShareDelegate> CreateNearbyShareDelegate(
NearbyShareController* controller) const = 0;
// Check whether the current tab of the browser window can go back.
virtual bool CanGoBack(gfx::NativeWindow window) const = 0;
// Sets the tab scrubber |enabled_| field to |enabled|.
virtual void SetTabScrubberEnabled(bool enabled) = 0;
// Returns true if |window| allows default touch behaviors. If false, it means
// no default touch behavior is allowed (i.e., the touch action of window is
// cc::TouchAction::kNone). This function is used by BackGestureEventHandler
// to decide if we can perform the system default back gesture.
virtual bool AllowDefaultTouchActions(gfx::NativeWindow window);
// Returns true if we should wait for touch press ack when deciding if back
// gesture can be performed.
virtual bool ShouldWaitForTouchPressAck(gfx::NativeWindow window);
// Checks whether a drag-drop operation is a tab drag.
virtual bool IsTabDrag(const ui::OSExchangeData& drop_data);
// Drops tab in a new browser window. |drop_data| must be from a tab
// drag as determined by IsTabDrag() above.
virtual aura::Window* CreateBrowserForTabDrop(
aura::Window* source_window,
const ui::OSExchangeData& drop_data);
// 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 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::MediaSessionService* GetMediaSessionService();
virtual void OpenKeyboardShortcutHelpPage() const {}
} // namespace ash