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WindowServerConnection.mm
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142 lines (120 loc) · 5.9 KB
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/*
* Copyright (C) 2010-2022 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"
#if PLATFORM(MAC) || PLATFORM(MACCATALYST)
#import "WebProcessPool.h"
#import <pal/spi/cg/CoreGraphicsSPI.h>
namespace WebKit {
#if PLATFORM(MAC)
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
void WindowServerConnection::hardwareConsoleStateChanged(HardwareConsoleState state)
{
if (state == m_connectionState)
return;
m_connectionState = state;
for (auto& processPool : WebProcessPool::allProcessPools())
processPool->hardwareConsoleStateChanged();
}
WindowServerConnection& WindowServerConnection::singleton()
{
static WindowServerConnection& windowServerConnection = *new WindowServerConnection;
return windowServerConnection;
}
#if PLATFORM(MAC)
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 PLATFORM(MAC)
struct OcclusionNotificationHandler {
CGSNotificationType notificationType;
CGSNotifyConnectionProcPtr handler;
ASCIILiteral 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"_s },
{ kCGSConnectionWindowModificationsStopped, windowModificationsStopped, "Application Window Modifications Stopped"_s },
};
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.characters());
}
#endif
static auto consoleWillDisconnect = [](CGSNotificationType, void*, uint32_t, void*) {
WindowServerConnection::singleton().hardwareConsoleStateChanged(HardwareConsoleState::Disconnected);
};
static auto consoleWillConnect = [](CGSNotificationType, void*, uint32_t, void*) {
WindowServerConnection::singleton().hardwareConsoleStateChanged(HardwareConsoleState::Connected);
};
struct ConnectionStateNotificationHandler {
CGSNotificationType notificationType;
CGSNotifyProcPtr handler;
ASCIILiteral name;
};
static const ConnectionStateNotificationHandler connectionStateNotificationHandlers[] = {
{ kCGSessionConsoleWillDisconnect, consoleWillDisconnect, "Console Disconnected"_s },
{ kCGSessionConsoleConnect, consoleWillConnect, "Console Connected"_s },
};
for (const auto& connectionStateNotificationHandler : connectionStateNotificationHandlers) {
auto error = CGSRegisterNotifyProc(connectionStateNotificationHandler.handler, connectionStateNotificationHandler.notificationType, nullptr);
UNUSED_PARAM(error);
ASSERT_WITH_MESSAGE(!error, "Registration of \"%s\" notification handler failed.\n", connectionStateNotificationHandler.name.characters());
}
}
} // namespace WebKit
#endif // PLATFORM(MAC) || PLATFORM(MACCATALYST)