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/*
* Copyright (C) 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.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE 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 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.
*/
#include "config.h"
#if PLATFORM(IOS_FAMILY)
#include "AccessibilityMediaHelpers.h"
#include "AXObjectCache.h"
#include "AccessibilityRenderObject.h"
#include "HTMLMediaElement.h"
#include "HTMLNames.h"
#include "HTMLVideoElement.h"
#include "LocalizedStrings.h"
namespace WebCore {
void AccessibilityMediaHelpers::enterFullscreen(HTMLVideoElement* videoElement)
{
if (videoElement)
videoElement->enterFullscreen();
}
void AccessibilityMediaHelpers::toggleMute(HTMLMediaElement* mediaElement)
{
if (mediaElement)
mediaElement->setMuted(!mediaElement->muted());
}
String AccessibilityMediaHelpers::interactiveVideoDuration(HTMLMediaElement* mediaElement)
{
return mediaElement ? localizedMediaTimeDescription(mediaElement->duration()) : String();
}
bool AccessibilityMediaHelpers::isPlaying(HTMLMediaElement* mediaElement)
{
return mediaElement && mediaElement->isPlaying();
}
bool AccessibilityMediaHelpers::isAutoplayEnabled(HTMLMediaElement* mediaElement)
{
return mediaElement && mediaElement->autoplay();
}
bool AccessibilityMediaHelpers::isMuted(HTMLMediaElement* mediaElement)
{
return mediaElement && mediaElement->muted();
}
bool AccessibilityMediaHelpers::press(HTMLMediaElement& mediaElement)
{
// We can safely call the internal togglePlayState method, which doesn't check restrictions,
// because this method is only called from user interaction.
mediaElement.togglePlayState();
return true;
}
void AccessibilityMediaHelpers::increment(HTMLMediaElement& mediaElement)
{
mediaSeek(mediaElement, AXSeekDirection::Forward);
}
void AccessibilityMediaHelpers::decrement(HTMLMediaElement& mediaElement)
{
mediaSeek(mediaElement, AXSeekDirection::Backward);
}
void AccessibilityMediaHelpers::mediaSeek(HTMLMediaElement& mediaElement, AXSeekDirection direction)
{
// Step 5% each time.
constexpr double seekStep = .05;
double current = mediaElement.currentTime();
double duration = mediaElement.duration();
double timeDelta = ceil(duration * seekStep);
double time = direction == AXSeekDirection::Forward ? std::min(current + timeDelta, duration) : std::max(current - timeDelta, 0.0);
mediaElement.setCurrentTime(time);
}
} // namespace WebCore
#endif // PLATFORM(IOS_FAMILY)
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