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/*
* Copyright (C) 2004-2022 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. ``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 "SimpleCaretAnimator.h"
#include "RenderTheme.h"
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_ALLOCATED_IMPL(SimpleCaretAnimator);
SimpleCaretAnimator::SimpleCaretAnimator(CaretAnimationClient& client)
: CaretAnimator(client)
{
}
void SimpleCaretAnimator::updateAnimationProperties()
{
auto currentTime = MonotonicTime::now();
auto caretBlinkInterval = RenderTheme::singleton().caretBlinkInterval();
setBlinkingSuspended(!caretBlinkInterval);
if (isBlinkingSuspended()) {
// Ensure the caret is always visible when blinking is suspended.
if (m_presentationProperties.blinkState == PresentationProperties::BlinkState::On)
m_blinkTimer.startOneShot(caretBlinkInterval.value_or(0_ms));
return;
}
ASSERT(caretBlinkInterval.has_value());
if (currentTime - m_lastTimeCaretPaintWasToggled >= caretBlinkInterval) {
setBlinkState(!m_presentationProperties.blinkState);
m_lastTimeCaretPaintWasToggled = currentTime;
m_blinkTimer.startOneShot(*caretBlinkInterval);
}
}
void SimpleCaretAnimator::start()
{
m_lastTimeCaretPaintWasToggled = MonotonicTime::now();
didStart(m_lastTimeCaretPaintWasToggled, RenderTheme::singleton().caretBlinkInterval());
}
String SimpleCaretAnimator::debugDescription() const
{
TextStream textStream;
textStream << "SimpleCaretAnimator " << this << " active " << isActive() << " blink state = " << (m_presentationProperties.blinkState == PresentationProperties::BlinkState::On ? "On" : "Off");
return textStream.release();
}
} // namespace WebCore
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