x_atom_cache.h - mozsearch

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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_LINUX_X11_X_ATOM_CACHE_H_

#define MODULES_DESKTOP_CAPTURE_LINUX_X11_X_ATOM_CACHE_H_

#include <X11/X.h>

#include <X11/Xlib.h>

namespace webrtc {

// A cache of Atom. Each Atom object is created on demand.

class XAtomCache final {

 public:

  explicit XAtomCache(::Display* display);

  ~XAtomCache();

  ::Display* display() const;

  Atom WmState();

  Atom WindowType();

  Atom WindowTypeNormal();

  Atom IccProfile();

 private:

  // If |*atom| is None, this function uses XInternAtom() to retrieve an Atom.

  Atom CreateIfNotExist(Atom* atom, const char* name);

  ::Display* const display_;

  Atom wm_state_ = None;

  Atom window_type_ = None;

  Atom window_type_normal_ = None;

  Atom icc_profile_ = None;

};

}  // namespace webrtc

#endif  // MODULES_DESKTOP_CAPTURE_LINUX_X11_X_ATOM_CACHE_H_