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/*
* Copyright (C) 2012-2021 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.
*/
#pragma once
#if ENABLE(VIDEO)
#include "CSSPropertyNames.h"
#include "CaptionPreferencesDelegate.h"
#include "CaptionUserPreferences.h"
#include "Color.h"
#include <wtf/TZoneMalloc.h>
#if PLATFORM(COCOA)
OBJC_CLASS WebCaptionUserPreferencesMediaAFWeakObserver;
#endif
namespace WebCore {
class CaptionUserPreferencesMediaAF : public CaptionUserPreferences {
WTF_MAKE_TZONE_ALLOCATED(CaptionUserPreferencesMediaAF);
public:
static Ref<CaptionUserPreferencesMediaAF> create(PageGroup&);
virtual ~CaptionUserPreferencesMediaAF();
#if HAVE(MEDIA_ACCESSIBILITY_FRAMEWORK)
CaptionDisplayMode captionDisplayMode() const override;
void setCaptionDisplayMode(CaptionDisplayMode) override;
WEBCORE_EXPORT static CaptionDisplayMode platformCaptionDisplayMode();
WEBCORE_EXPORT static void platformSetCaptionDisplayMode(CaptionDisplayMode);
WEBCORE_EXPORT static void setCachedCaptionDisplayMode(CaptionDisplayMode);
bool userPrefersCaptions() const override;
bool userPrefersSubtitles() const override;
bool userPrefersTextDescriptions() const final;
float captionFontSizeScaleAndImportance(bool&) const override;
bool captionStrokeWidthForFont(float fontSize, const String& language, float& strokeWidth, bool& important) const override;
void setInterestedInCaptionPreferenceChanges() override;
void setPreferredLanguage(const String&) override;
Vector<String> preferredLanguages() const override;
WEBCORE_EXPORT static Vector<String> platformPreferredLanguages();
WEBCORE_EXPORT static void platformSetPreferredLanguage(const String&);
WEBCORE_EXPORT static void setCachedPreferredLanguages(const Vector<String>&);
void setPreferredAudioCharacteristic(const String&) override;
Vector<String> preferredAudioCharacteristics() const override;
void captionPreferencesChanged() override;
bool shouldFilterTrackMenu() const { return true; }
WEBCORE_EXPORT static void setCaptionPreferencesDelegate(std::unique_ptr<CaptionPreferencesDelegate>&&);
#else
bool shouldFilterTrackMenu() const { return false; }
#endif
#if HAVE(MEDIA_ACCESSIBILITY_FRAMEWORK) && PLATFORM(COCOA)
static RefPtr<CaptionUserPreferencesMediaAF> extractCaptionUserPreferencesMediaAF(void* observer);
#endif
String captionsStyleSheetOverride() const override;
Vector<RefPtr<AudioTrack>> sortedTrackListForMenu(AudioTrackList*) override;
Vector<RefPtr<TextTrack>> sortedTrackListForMenu(TextTrackList*, UncheckedKeyHashSet<TextTrack::Kind>) override;
String displayNameForTrack(AudioTrack*) const override;
String displayNameForTrack(TextTrack*) const override;
private:
CaptionUserPreferencesMediaAF(PageGroup&);
#if HAVE(MEDIA_ACCESSIBILITY_FRAMEWORK)
void updateTimerFired();
String captionsWindowCSS() const;
String captionsBackgroundCSS() const;
String captionsTextColorCSS() const;
Color captionsTextColor(bool&) const;
String captionsDefaultFontCSS() const;
String windowRoundedCornerRadiusCSS() const;
String captionsTextEdgeCSS() const;
String colorPropertyCSS(CSSPropertyID, const Color&, bool) const;
#endif
#if HAVE(MEDIA_ACCESSIBILITY_FRAMEWORK) && PLATFORM(COCOA)
static RetainPtr<WebCaptionUserPreferencesMediaAFWeakObserver> createWeakObserver(CaptionUserPreferencesMediaAF*);
RetainPtr<WebCaptionUserPreferencesMediaAFWeakObserver> m_observer;
#endif
#if HAVE(MEDIA_ACCESSIBILITY_FRAMEWORK)
Timer m_updateStyleSheetTimer;
bool m_listeningForPreferenceChanges { false };
bool m_registeringForNotification { false };
#endif
};
} // namespace WebCore
#endif // ENABLE(VIDEO)
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