x_atom_cache.h (1245B)
1 /* 2 * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef MODULES_DESKTOP_CAPTURE_LINUX_X11_X_ATOM_CACHE_H_ 12 #define MODULES_DESKTOP_CAPTURE_LINUX_X11_X_ATOM_CACHE_H_ 13 14 #include <X11/X.h> 15 #include <X11/Xlib.h> 16 17 namespace webrtc { 18 19 // A cache of Atom. Each Atom object is created on demand. 20 class XAtomCache final { 21 public: 22 explicit XAtomCache(::Display* display); 23 ~XAtomCache(); 24 25 ::Display* display() const; 26 27 Atom WmState(); 28 Atom WindowType(); 29 Atom WindowTypeNormal(); 30 Atom IccProfile(); 31 32 private: 33 // If |*atom| is None, this function uses XInternAtom() to retrieve an Atom. 34 Atom CreateIfNotExist(Atom* atom, const char* name); 35 36 ::Display* const display_; 37 Atom wm_state_ = None; 38 Atom window_type_ = None; 39 Atom window_type_normal_ = None; 40 Atom icc_profile_ = None; 41 }; 42 43 } // namespace webrtc 44 45 #endif // MODULES_DESKTOP_CAPTURE_LINUX_X11_X_ATOM_CACHE_H_