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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
namespace ui {
class COMPONENT_EXPORT(PLATFORM_WINDOW) X11ExtensionDelegate {
public:
// 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;
#if BUILDFLAG(USE_ATK)
// Notifies an ATK key event to be processed. The transient parameter will be
// true if the event target is a transient window (e.g. a modal dialog)
// "hanging" from our window. Return true to stop propagation of the original
// key event.
virtual bool OnAtkKeyEvent(AtkKeyEventStruct* atk_key_event,
bool transient) = 0;
#endif
// Returns true if this window should be in a forced override-redirect state
// (not managed by the window manager).
virtual bool IsOverrideRedirect() const = 0;
protected:
virtual ~X11ExtensionDelegate() = default;
};
} // namespace ui
#endif // UI_PLATFORM_WINDOW_EXTENSIONS_X11_EXTENSION_DELEGATE_H_