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/*
* Copyright (C) 2010, 2014 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. ``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
* 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.
*/
#include "config.h"
#include "DisplayRefreshMonitorManager.h"
#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)
#include "DisplayRefreshMonitor.h"
#include "DisplayRefreshMonitorClient.h"
#include <wtf/CurrentTime.h>
namespace WebCore {
DisplayRefreshMonitorManager::~DisplayRefreshMonitorManager()
{
}
DisplayRefreshMonitorManager& DisplayRefreshMonitorManager::sharedManager()
{
static NeverDestroyed<DisplayRefreshMonitorManager> manager;
return manager.get();
}
DisplayRefreshMonitor* DisplayRefreshMonitorManager::ensureMonitorForClient(DisplayRefreshMonitorClient* client)
{
DisplayRefreshMonitorMap::iterator it = m_monitors.find(client->displayID());
if (it == m_monitors.end()) {
RefPtr<DisplayRefreshMonitor> monitor = DisplayRefreshMonitor::create(client);
monitor->addClient(client);
DisplayRefreshMonitor* result = monitor.get();
m_monitors.add(client->displayID(), monitor.release());
return result;
}
it->value->addClient(client);
return it->value.get();
}
void DisplayRefreshMonitorManager::registerClient(DisplayRefreshMonitorClient* client)
{
if (!client->hasDisplayID())
return;
ensureMonitorForClient(client);
}
void DisplayRefreshMonitorManager::unregisterClient(DisplayRefreshMonitorClient* client)
{
if (!client->hasDisplayID())
return;
DisplayRefreshMonitorMap::iterator it = m_monitors.find(client->displayID());
if (it == m_monitors.end())
return;
DisplayRefreshMonitor* monitor = it->value.get();
if (monitor->removeClient(client)) {
if (!monitor->hasClients())
m_monitors.remove(it);
}
}
bool DisplayRefreshMonitorManager::scheduleAnimation(DisplayRefreshMonitorClient* client)
{
if (!client->hasDisplayID())
return false;
DisplayRefreshMonitor* monitor = ensureMonitorForClient(client);
client->setIsScheduled(true);
return monitor->requestRefreshCallback();
}
void DisplayRefreshMonitorManager::displayDidRefresh(DisplayRefreshMonitor* monitor)
{
if (monitor->shouldBeTerminated()) {
ASSERT(m_monitors.contains(monitor->displayID()));
m_monitors.remove(monitor->displayID());
}
}
void DisplayRefreshMonitorManager::windowScreenDidChange(PlatformDisplayID displayID, DisplayRefreshMonitorClient* client)
{
if (client->hasDisplayID() && client->displayID() == displayID)
return;
unregisterClient(client);
client->setDisplayID(displayID);
registerClient(client);
if (client->isScheduled())
scheduleAnimation(client);
}
}
#endif // USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)
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