1 /* 2 * Copyright (c) 2014 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 #include "webrtc/modules/desktop_capture/mac/window_list_utils.h" 12 13 #include <ApplicationServices/ApplicationServices.h> 14 15 #include "webrtc/base/macutils.h" 16 17 namespace webrtc { 18 19 bool GetWindowList(WindowCapturer::WindowList* windows) { 20 // Only get on screen, non-desktop windows. 21 CFArrayRef window_array = CGWindowListCopyWindowInfo( 22 kCGWindowListOptionOnScreenOnly | kCGWindowListExcludeDesktopElements, 23 kCGNullWindowID); 24 if (!window_array) 25 return false; 26 27 // Check windows to make sure they have an id, title, and use window layer 28 // other than 0. 29 CFIndex count = CFArrayGetCount(window_array); 30 for (CFIndex i = 0; i < count; ++i) { 31 CFDictionaryRef window = reinterpret_cast<CFDictionaryRef>( 32 CFArrayGetValueAtIndex(window_array, i)); 33 CFStringRef window_title = reinterpret_cast<CFStringRef>( 34 CFDictionaryGetValue(window, kCGWindowName)); 35 CFNumberRef window_id = reinterpret_cast<CFNumberRef>( 36 CFDictionaryGetValue(window, kCGWindowNumber)); 37 CFNumberRef window_layer = reinterpret_cast<CFNumberRef>( 38 CFDictionaryGetValue(window, kCGWindowLayer)); 39 if (window_title && window_id && window_layer) { 40 // Skip windows with layer=0 (menu, dock). 41 int layer; 42 CFNumberGetValue(window_layer, kCFNumberIntType, &layer); 43 if (layer != 0) 44 continue; 45 46 int id; 47 CFNumberGetValue(window_id, kCFNumberIntType, &id); 48 WindowCapturer::Window window; 49 window.id = id; 50 if (!rtc::ToUtf8(window_title, &(window.title)) || 51 window.title.empty()) { 52 continue; 53 } 54 windows->push_back(window); 55 } 56 } 57 58 CFRelease(window_array); 59 return true; 60 } 61 62 } // namespace webrtc 63
