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// Copyright 2014 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_X11_X11_TOPMOST_WINDOW_FINDER_H_
#define UI_PLATFORM_WINDOW_X11_X11_TOPMOST_WINDOW_FINDER_H_
#include <set>
#include "base/macros.h"
#include "ui/base/x/x11_topmost_window_finder.h"
#include "ui/base/x/x11_util.h"
#include "ui/gfx/geometry/point.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/platform_window/x11/x11_window_export.h"
namespace ui {
class X11Window;
// Utility class for finding the topmost window at a given screen position.
class X11_WINDOW_EXPORT X11TopmostWindowFinder
: public ui::XTopmostWindowFinder {
public:
X11TopmostWindowFinder();
~X11TopmostWindowFinder() override;
// Returns the topmost window at |screen_loc_in_pixels|, ignoring the windows
// in |ignore|. Returns null widget if the topmost window at
// |screen_loc_in_pixels| does not belong to Chrome.
x11::Window FindLocalProcessWindowAt(
const gfx::Point& screen_loc_in_pixels,
const std::set<gfx::AcceleratedWidget>& ignore);
// Returns the topmost window at |screen_loc_in_pixels|.
x11::Window FindWindowAt(const gfx::Point& screen_loc_in_pixels) override;
private:
bool ShouldStopIterating(x11::Window window);
// Returns true if |window| does not not belong to |ignore|, is visible and
// contains |screen_loc_|.
bool ShouldStopIteratingAtLocalProcessWindow(ui::X11Window* window);
gfx::Point screen_loc_in_pixels_;
std::set<gfx::AcceleratedWidget> ignore_;
x11::Window toplevel_ = x11::Window::None;
DISALLOW_COPY_AND_ASSIGN(X11TopmostWindowFinder);
};
} // namespace ui
#endif // UI_PLATFORM_WINDOW_X11_X11_TOPMOST_WINDOW_FINDER_H_