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/*
* Copyright (C) 2008-2025 Apple Inc. All rights reserved.
* Copyright (C) 2012 Google 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.
*/
#pragma once
#if ENABLE(VIDEO)
#include "HTMLDivElement.h"
#include "IntRect.h"
#include "MediaControllerInterface.h"
#include "PODInterval.h"
#include "TextTrackRepresentation.h"
#include <wtf/LoggerHelper.h>
#include <wtf/MediaTime.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class HTMLMediaElement;
class TextTrack;
class TextTrackCue;
class VTTCue;
using CueInterval = PODInterval<MediaTime, TextTrackCue*>;
using CueList = Vector<CueInterval>;
class MediaControlTextTrackContainerElement final
: public HTMLDivElement
, public TextTrackRepresentationClient
#if !RELEASE_LOG_DISABLED
, private LoggerHelper
#endif
{
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(MediaControlTextTrackContainerElement);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(MediaControlTextTrackContainerElement);
public:
static Ref<MediaControlTextTrackContainerElement> create(Document&, HTMLMediaElement&);
~MediaControlTextTrackContainerElement();
void captionPreferencesChanged();
enum class ForceUpdate : bool { No, Yes };
void updateSizes(ForceUpdate force = ForceUpdate::No);
void updateDisplay();
TextTrackRepresentation* textTrackRepresentation() const { return m_textTrackRepresentation.get(); }
void updateTextTrackRepresentationImageIfNeeded();
void requiresTextTrackRepresentationChanged();
void enteredFullscreen();
void exitedFullscreen();
void showCaptionDisplaySettingsPreview();
void hideCaptionDisplaySettingsPreview();
private:
explicit MediaControlTextTrackContainerElement(Document&, HTMLMediaElement&);
// Element
RenderPtr<RenderElement> createElementRenderer(RenderStyle&&, const RenderTreePosition&) override;
// TextTrackRepresentationClient
RefPtr<NativeImage> createTextTrackRepresentationImage() override;
void textTrackRepresentationBoundsChanged(const IntRect&) override;
void updateTextTrackRepresentationIfNeeded();
void clearTextTrackRepresentation();
bool updateVideoDisplaySize();
void updateActiveCuesFontSize();
void updateTextStrokeStyle();
void processActiveVTTCue(VTTCue&);
void updateTextTrackStyle();
void hide();
void show();
bool isShowing() const;
CueList currentlyActiveCues() const;
VTTCue& ensurePreviewCue() const;
#if !RELEASE_LOG_DISABLED
const Logger& logger() const final;
uint64_t logIdentifier() const final;
WTFLogChannel& logChannel() const final;
ASCIILiteral logClassName() const final { return "MediaControlTextTrackContainerElement"_s; }
mutable RefPtr<Logger> m_logger;
mutable uint64_t m_logIdentifier { 0 };
#endif
std::unique_ptr<TextTrackRepresentation> m_textTrackRepresentation;
WeakPtr<HTMLMediaElement> m_mediaElement;
IntRect m_videoDisplaySize;
int m_fontSize { 0 };
bool m_fontSizeIsImportant { false };
bool m_needsToGenerateTextTrackRepresentation { false };
bool m_shouldShowCaptionPreviewCue { false };
mutable RefPtr<TextTrack> m_previewTrack;
mutable RefPtr<VTTCue> m_previewCue;
};
} // namespace WebCore
#endif // ENABLE(VIDEO)
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