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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)
#include "AccessibilityMediaObject.h"
#include "HTMLMediaElement.h"
#include "HTMLNames.h"
#include "HTMLVideoElement.h"
#include "LocalizedStrings.h"
namespace WebCore {
using namespace HTMLNames;
AccessibilityMediaObject::AccessibilityMediaObject(RenderObject* renderer)
: AccessibilityRenderObject(renderer)
{
}
AccessibilityMediaObject::~AccessibilityMediaObject() = default;
Ref<AccessibilityMediaObject> AccessibilityMediaObject::create(RenderObject* renderer)
{
return adoptRef(*new AccessibilityMediaObject(renderer));
}
bool AccessibilityMediaObject::computeAccessibilityIsIgnored() const
{
return accessibilityIsIgnoredByDefault();
}
HTMLMediaElement* AccessibilityMediaObject::mediaElement() const
{
Node* node = this->node();
if (!is<HTMLMediaElement>(*node))
return nullptr;
return downcast<HTMLMediaElement>(node);
}
String AccessibilityMediaObject::stringValue() const
{
if (HTMLMediaElement* element = mediaElement())
return localizedMediaTimeDescription(element->currentTime());
return AccessibilityRenderObject::stringValue();
}
String AccessibilityMediaObject::interactiveVideoDuration() const
{
if (HTMLMediaElement* element = mediaElement())
return localizedMediaTimeDescription(element->duration());
return String();
}
void AccessibilityMediaObject::mediaSeek(AXSeekDirection direction)
{
HTMLMediaElement* element = mediaElement();
if (!element)
return;
// Step 5% each time.
const double seekStep = .05;
double current = element->currentTime();
double duration = element->duration();
double timeDelta = ceil(duration * seekStep);
double time = direction == AXSeekForward ? std::min(current + timeDelta, duration) : std::max(current - timeDelta, 0.0);
element->setCurrentTime(time);
}
void AccessibilityMediaObject::toggleMute()
{
HTMLMediaElement* element = mediaElement();
if (!element)
return;
element->setMuted(!element->muted());
}
void AccessibilityMediaObject::increment()
{
if (dispatchAccessibilityEventWithType(AccessibilityEventType::Increment))
return;
mediaSeek(AXSeekForward);
}
void AccessibilityMediaObject::decrement()
{
if (dispatchAccessibilityEventWithType(AccessibilityEventType::Decrement))
return;
mediaSeek(AXSeekBackward);
}
bool AccessibilityMediaObject::press()
{
HTMLMediaElement* element = mediaElement();
if (!element)
return false;
// We can safely call the internal togglePlayState method, which doesn't check restrictions,
// because this method is only called from user interaction.
element->togglePlayState();
return true;
}
bool AccessibilityMediaObject::hasControlsAttributeSet() const
{
HTMLMediaElement* element = mediaElement();
if (!element)
return false;
return element->controls();
}
bool AccessibilityMediaObject::isPlaying() const
{
HTMLMediaElement* element = mediaElement();
if (!element)
return false;
return element->isPlaying();
}
bool AccessibilityMediaObject::isMuted() const
{
HTMLMediaElement* element = mediaElement();
if (!element)
return false;
return element->muted();
}
bool AccessibilityMediaObject::isAutoplayEnabled() const
{
HTMLMediaElement* element = mediaElement();
if (!element)
return false;
return element->autoplay();
}
bool AccessibilityMediaObject::isPlayingInline() const
{
HTMLMediaElement* element = mediaElement();
if (!element)
return false;
return !element->mediaSession().requiresFullscreenForVideoPlayback(*element);
}
void AccessibilityMediaObject::enterFullscreen() const
{
Node* node = this->node();
if (!is<HTMLVideoElement>(node))
return;
HTMLVideoElement* element = downcast<HTMLVideoElement>(node);
element->enterFullscreen();
}
} // namespace WebCore
#endif // PLATFORM(IOS)