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/*
* Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef MODULES_DESKTOP_CAPTURE_WINDOW_FINDER_H_
#define MODULES_DESKTOP_CAPTURE_WINDOW_FINDER_H_
#include <memory>
#include "api/scoped_refptr.h"
#include "modules/desktop_capture/desktop_capture_types.h"
#include "modules/desktop_capture/desktop_geometry.h"
#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
#include "modules/desktop_capture/mac/desktop_configuration_monitor.h"
#endif
namespace webrtc {
#if defined(WEBRTC_USE_X11)
class XAtomCache;
#endif
// An interface to return the id of the visible window under a certain point.
class WindowFinder {
public:
WindowFinder() = default;
virtual ~WindowFinder() = default;
// Returns the id of the visible window under `point`. This function returns
// kNullWindowId if no window is under `point` and the platform does not have
// "root window" concept, i.e. the visible area under `point` is the desktop.
// `point` is always in system coordinate, i.e. the primary monitor always
// starts from (0, 0).
virtual WindowId GetWindowUnderPoint(DesktopVector point) = 0;
struct Options final {
Options();
~Options();
Options(const Options& other);
Options(Options&& other);
#if defined(WEBRTC_USE_X11)
XAtomCache* cache = nullptr;
#endif
#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
webrtc::scoped_refptr<DesktopConfigurationMonitor> configuration_monitor;
#endif
};
// Creates a platform-independent WindowFinder implementation. This function
// returns nullptr if `options` does not contain enough information or
// WindowFinder does not support current platform.
static std::unique_ptr<WindowFinder> Create(const Options& options);
};
} // namespace webrtc
#endif // MODULES_DESKTOP_CAPTURE_WINDOW_FINDER_H_
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