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// Copyright 2020 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 "base/component_export.h"
namespace ui {
class PlatformWindow;
enum class WaylandWindowSnapDirection {
// Starts a window dragging session for the owning platform window, if
// it is not running yet. Under Wayland, window dragging is backed by a
// platform drag-and-drop session.
virtual void StartWindowDraggingSessionIfNeeded() = 0;
// Signals the underneath platform that browser is entering (or exiting)
// 'immersive fullscreen mode'.
// Under lacros, it controls for instance interaction with the system shelf
// widget, when browser goes in fullscreen.
virtual void SetImmersiveFullscreenStatus(bool status) = 0;
// Signals the underneath platform to shows a preview for the given window
// snap direction.
virtual void ShowSnapPreview(WaylandWindowSnapDirection snap) = 0;
// Requests the underneath platform to snap the window in the given direction,
// if not WaylandWindowSnapDirection::kNone, otherwise cancels the window
// snapping.
virtual void CommitSnap(WaylandWindowSnapDirection snap) = 0;
// Signals the underneath platform whether the current tab of the browser
// window can go back. The underneath platform might react, for example,
// by minimizing the window upon a system wide back gesture.
virtual void SetCanGoBack(bool value) = 0;
// Requests the underneath platform to set the window to picture-in-picture
// (PIP).
virtual void SetPip() = 0;
// Whether or not the underlying platform supports native pointer locking.
virtual bool SupportsPointerLock() = 0;
virtual void LockPointer(bool enabled) = 0;
virtual ~WaylandExtension();
// Sets the pointer to the extension as a property of the PlatformWindow.
void SetWaylandExtension(PlatformWindow* window, WaylandExtension* extension);
WaylandExtension* GetWaylandExtension(const PlatformWindow& window);
} // namespace ui