| /* |
| * Copyright (C) 2010-2017 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #import "config.h" |
| #import "WindowServerConnection.h" |
| |
| #import "WebProcessPool.h" |
| #import <pal/spi/cg/CoreGraphicsSPI.h> |
| |
| namespace WebKit { |
| |
| #if HAVE(WINDOW_SERVER_OCCLUSION_NOTIFICATIONS) |
| |
| void WindowServerConnection::applicationWindowModificationsStopped(bool stopped) |
| { |
| if (m_applicationWindowModificationsHaveStopped == stopped) |
| return; |
| m_applicationWindowModificationsHaveStopped = stopped; |
| windowServerConnectionStateChanged(); |
| } |
| |
| void WindowServerConnection::windowServerConnectionStateChanged() |
| { |
| for (auto* processPool : WebProcessPool::allProcessPools()) |
| processPool->windowServerConnectionStateChanged(); |
| } |
| |
| #endif |
| |
| WindowServerConnection& WindowServerConnection::singleton() |
| { |
| static WindowServerConnection& windowServerConnection = *new WindowServerConnection; |
| return windowServerConnection; |
| } |
| |
| #if HAVE(WINDOW_SERVER_OCCLUSION_NOTIFICATIONS) |
| static bool registerOcclusionNotificationHandler(CGSNotificationType type, CGSNotifyConnectionProcPtr handler) |
| { |
| CGSConnectionID mainConnection = CGSMainConnectionID(); |
| static bool notificationsEnabled; |
| if (!notificationsEnabled) { |
| if (CGSPackagesEnableConnectionOcclusionNotifications(mainConnection, true, nullptr) != kCGErrorSuccess) |
| return false; |
| if (CGSPackagesEnableConnectionWindowModificationNotifications(mainConnection, true, nullptr) != kCGErrorSuccess) |
| return false; |
| notificationsEnabled = true; |
| } |
| |
| return CGSRegisterConnectionNotifyProc(mainConnection, handler, type, nullptr) == kCGErrorSuccess; |
| } |
| #endif |
| |
| WindowServerConnection::WindowServerConnection() |
| : m_applicationWindowModificationsHaveStopped(false) |
| { |
| #if HAVE(WINDOW_SERVER_OCCLUSION_NOTIFICATIONS) |
| struct OcclusionNotificationHandler { |
| CGSNotificationType notificationType; |
| CGSNotifyConnectionProcPtr handler; |
| const char* name; |
| }; |
| |
| static auto windowModificationsStarted = [](CGSNotificationType, void*, uint32_t, void*, CGSConnectionID) { |
| WindowServerConnection::singleton().applicationWindowModificationsStopped(false); |
| }; |
| |
| static auto windowModificationsStopped = [](CGSNotificationType, void*, uint32_t, void*, CGSConnectionID) { |
| WindowServerConnection::singleton().applicationWindowModificationsStopped(true); |
| }; |
| |
| static const OcclusionNotificationHandler occlusionNotificationHandlers[] = { |
| { kCGSConnectionWindowModificationsStarted, windowModificationsStarted, "Application Window Modifications Started" }, |
| { kCGSConnectionWindowModificationsStopped, windowModificationsStopped, "Application Window Modifications Stopped" }, |
| }; |
| |
| for (const auto& occlusionNotificationHandler : occlusionNotificationHandlers) { |
| bool result = registerOcclusionNotificationHandler(occlusionNotificationHandler.notificationType, occlusionNotificationHandler.handler); |
| UNUSED_PARAM(result); |
| ASSERT_WITH_MESSAGE(result, "Registration of \"%s\" notification handler failed.\n", occlusionNotificationHandler.name); |
| } |
| #endif |
| } |
| |
| } // namespace WebKit |
| |