blob: 6f33702fb3fc4867400bb9bd1d8e5b796f11cda9 [file] [log] [blame]
/*
* Copyright (C) 2019 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 "RenderingUpdateScheduler.h"
#include "Chrome.h"
#include "ChromeClient.h"
#include "DisplayRefreshMonitorManager.h"
#include "Page.h"
#include <wtf/SystemTracing.h>
namespace WebCore {
RenderingUpdateScheduler::RenderingUpdateScheduler(Page& page)
: m_page(page)
{
#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)
windowScreenDidChange(page.chrome().displayID());
#endif
}
void RenderingUpdateScheduler::scheduleTimedRenderingUpdate()
{
if (isScheduled())
return;
// Optimize the case when an invisible page wants just to schedule layer flush.
if (!m_page.isVisible()) {
scheduleImmediateRenderingUpdate();
return;
}
tracePoint(ScheduleRenderingUpdate);
#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)
if (!DisplayRefreshMonitorManager::sharedManager().scheduleAnimation(*this))
#endif
startTimer(Seconds(1.0 / 60));
m_scheduled = true;
}
bool RenderingUpdateScheduler::isScheduled() const
{
ASSERT_IMPLIES(m_refreshTimer.get(), m_scheduled);
return m_scheduled;
}
void RenderingUpdateScheduler::startTimer(Seconds delay)
{
ASSERT(!isScheduled());
m_refreshTimer = makeUnique<Timer>(*this, &RenderingUpdateScheduler::displayRefreshFired);
m_refreshTimer->startOneShot(delay);
}
void RenderingUpdateScheduler::clearScheduled()
{
m_scheduled = false;
m_refreshTimer = nullptr;
}
#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)
RefPtr<DisplayRefreshMonitor> RenderingUpdateScheduler::createDisplayRefreshMonitor(PlatformDisplayID displayID) const
{
if (auto monitor = m_page.chrome().client().createDisplayRefreshMonitor(displayID))
return monitor;
return DisplayRefreshMonitor::createDefaultDisplayRefreshMonitor(displayID);
}
void RenderingUpdateScheduler::windowScreenDidChange(PlatformDisplayID displayID)
{
DisplayRefreshMonitorManager::sharedManager().windowScreenDidChange(displayID, *this);
}
#endif
void RenderingUpdateScheduler::displayRefreshFired()
{
tracePoint(TriggerRenderingUpdate);
clearScheduled();
scheduleImmediateRenderingUpdate();
}
void RenderingUpdateScheduler::scheduleImmediateRenderingUpdate()
{
m_page.chrome().client().scheduleRenderingUpdate();
}
void RenderingUpdateScheduler::scheduleRenderingUpdate()
{
if (m_page.chrome().client().needsImmediateRenderingUpdate())
scheduleImmediateRenderingUpdate();
else
scheduleTimedRenderingUpdate();
}
}