188 lines
5.3 KiB
C++
188 lines
5.3 KiB
C++
/*
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* Copyright (C) 2017 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Apple Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#if PLATFORM(IOS_FAMILY)
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#include "AccessibilityMediaObject.h"
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#include "HTMLMediaElement.h"
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#include "HTMLNames.h"
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#include "HTMLVideoElement.h"
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#include "LocalizedStrings.h"
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namespace WebCore {
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using namespace HTMLNames;
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AccessibilityMediaObject::AccessibilityMediaObject(RenderObject* renderer)
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: AccessibilityRenderObject(renderer)
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{
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}
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AccessibilityMediaObject::~AccessibilityMediaObject() = default;
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Ref<AccessibilityMediaObject> AccessibilityMediaObject::create(RenderObject* renderer)
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{
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return adoptRef(*new AccessibilityMediaObject(renderer));
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}
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bool AccessibilityMediaObject::computeAccessibilityIsIgnored() const
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{
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return accessibilityIsIgnoredByDefault();
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}
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HTMLMediaElement* AccessibilityMediaObject::mediaElement() const
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{
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Node* node = this->node();
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if (!is<HTMLMediaElement>(*node))
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return nullptr;
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return downcast<HTMLMediaElement>(node);
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}
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String AccessibilityMediaObject::stringValue() const
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{
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if (HTMLMediaElement* element = mediaElement())
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return localizedMediaTimeDescription(element->currentTime());
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return AccessibilityRenderObject::stringValue();
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}
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String AccessibilityMediaObject::interactiveVideoDuration() const
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{
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if (HTMLMediaElement* element = mediaElement())
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return localizedMediaTimeDescription(element->duration());
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return String();
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}
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void AccessibilityMediaObject::mediaSeek(AXSeekDirection direction)
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{
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HTMLMediaElement* element = mediaElement();
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if (!element)
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return;
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// Step 5% each time.
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const double seekStep = .05;
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double current = element->currentTime();
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double duration = element->duration();
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double timeDelta = ceil(duration * seekStep);
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double time = direction == AXSeekForward ? std::min(current + timeDelta, duration) : std::max(current - timeDelta, 0.0);
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element->setCurrentTime(time);
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}
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void AccessibilityMediaObject::toggleMute()
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{
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HTMLMediaElement* element = mediaElement();
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if (!element)
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return;
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element->setMuted(!element->muted());
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}
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void AccessibilityMediaObject::increment()
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{
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mediaSeek(AXSeekForward);
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}
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void AccessibilityMediaObject::decrement()
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{
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mediaSeek(AXSeekBackward);
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}
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bool AccessibilityMediaObject::press()
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{
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HTMLMediaElement* element = mediaElement();
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if (!element)
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return false;
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// We can safely call the internal togglePlayState method, which doesn't check restrictions,
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// because this method is only called from user interaction.
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element->togglePlayState();
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return true;
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}
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bool AccessibilityMediaObject::hasControlsAttributeSet() const
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{
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HTMLMediaElement* element = mediaElement();
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if (!element)
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return false;
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return element->controls();
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}
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bool AccessibilityMediaObject::isPlaying() const
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{
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HTMLMediaElement* element = mediaElement();
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if (!element)
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return false;
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return element->isPlaying();
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}
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bool AccessibilityMediaObject::isMuted() const
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{
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HTMLMediaElement* element = mediaElement();
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if (!element)
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return false;
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return element->muted();
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}
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bool AccessibilityMediaObject::isAutoplayEnabled() const
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{
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HTMLMediaElement* element = mediaElement();
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if (!element)
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return false;
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return element->autoplay();
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}
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bool AccessibilityMediaObject::isPlayingInline() const
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{
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HTMLMediaElement* element = mediaElement();
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if (!element)
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return false;
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return !element->mediaSession().requiresFullscreenForVideoPlayback();
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}
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void AccessibilityMediaObject::enterFullscreen() const
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{
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Node* node = this->node();
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if (!is<HTMLVideoElement>(node))
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return;
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HTMLVideoElement* element = downcast<HTMLVideoElement>(node);
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element->enterFullscreen();
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}
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} // namespace WebCore
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#endif // PLATFORM(IOS_FAMILY)
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