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// Copyright 2019 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.
#ifndef UI_PLATFORM_WINDOW_EXTENSIONS_X11_EXTENSION_DELEGATE_H_
#define UI_PLATFORM_WINDOW_EXTENSIONS_X11_EXTENSION_DELEGATE_H_
#include "base/component_export.h"
#include "ui/base/buildflags.h"
#if BUILDFLAG(USE_ATK)
using AtkKeyEventStruct = struct _AtkKeyEventStruct;
#endif
class SkPath;
namespace gfx {
class Size;
}
namespace ui {
class COMPONENT_EXPORT(EXTENSIONS) X11ExtensionDelegate {
public:
// Notifies the delegate that the window got mapped in the X server. Wayland
// does not support this interface.
virtual void OnXWindowMapped() = 0;
virtual void OnXWindowUnmapped() = 0;
// Notifies if the PlatformWindow looses a mouse grab. This can be useful
// for Wayland or X11. Both of them provide pointer enter and leave
// notifications, which non-ozone X11 (just an example) use to be using to
// notify about lost pointer grab along with explicit grabs. Wayland also
// has this technique. However, explicit grab is available only for popup
// (menu) windows.
virtual void OnLostMouseGrab() = 0;
// Returns a mask to be used to clip the window for the given
// size. This is used to create the non-rectangular window shape.
virtual void GetWindowMask(const gfx::Size& size, SkPath* window_mask) = 0;
#if BUILDFLAG(USE_ATK)
virtual bool OnAtkKeyEvent(AtkKeyEventStruct* atk_key_event) = 0;
#endif
protected:
virtual ~X11ExtensionDelegate() = default;
};
} // namespace ui
#endif // UI_PLATFORM_WINDOW_EXTENSIONS_X11_EXTENSION_DELEGATE_H_