1/* 2 * Copyright (C) 2012, 2013 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef CaptionUserPreferencesMediaAF_h 27#define CaptionUserPreferencesMediaAF_h 28 29#if ENABLE(VIDEO_TRACK) 30 31#include "CSSPropertyNames.h" 32#include "CaptionUserPreferences.h" 33#include "Color.h" 34#include <wtf/HashSet.h> 35 36namespace WebCore { 37 38class CaptionUserPreferencesMediaAF : public CaptionUserPreferences { 39public: 40 CaptionUserPreferencesMediaAF(PageGroup&); 41 virtual ~CaptionUserPreferencesMediaAF(); 42 43#if HAVE(MEDIA_ACCESSIBILITY_FRAMEWORK) 44 virtual CaptionDisplayMode captionDisplayMode() const override; 45 virtual void setCaptionDisplayMode(CaptionDisplayMode) override; 46 47 virtual bool userPrefersCaptions() const override; 48 virtual bool userPrefersSubtitles() const override; 49 50 virtual float captionFontSizeScaleAndImportance(bool&) const override; 51 52 virtual void setInterestedInCaptionPreferenceChanges() override; 53 54 virtual void setPreferredLanguage(const String&) override; 55 virtual Vector<String> preferredLanguages() const override; 56 57 virtual void captionPreferencesChanged() override; 58 59 bool shouldFilterTrackMenu() const { return true; } 60#else 61 bool shouldFilterTrackMenu() const { return false; } 62#endif 63 64 virtual String captionsStyleSheetOverride() const override; 65 virtual int textTrackSelectionScore(TextTrack*, HTMLMediaElement*) const override; 66 virtual Vector<RefPtr<TextTrack>> sortedTrackListForMenu(TextTrackList*) override; 67 virtual String displayNameForTrack(TextTrack*) const override; 68 69private: 70#if HAVE(MEDIA_ACCESSIBILITY_FRAMEWORK) 71 String captionsWindowCSS() const; 72 String captionsBackgroundCSS() const; 73 String captionsTextColorCSS() const; 74 Color captionsTextColor(bool&) const; 75 String captionsDefaultFontCSS() const; 76 Color captionsEdgeColorForTextColor(const Color&) const; 77 String windowRoundedCornerRadiusCSS() const; 78 String captionsTextEdgeCSS() const; 79 String cssPropertyWithTextEdgeColor(CSSPropertyID, const String&, const Color&, bool) const; 80 String colorPropertyCSS(CSSPropertyID, const Color&, bool) const; 81 82 bool m_listeningForPreferenceChanges; 83#endif 84}; 85 86} 87#endif 88 89#endif 90