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1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #ifndef TextTrackRegion_h | 31 #ifndef TextTrackRegion_h |
32 #define TextTrackRegion_h | 32 #define TextTrackRegion_h |
33 | 33 |
34 #if ENABLE(WEBVTT_REGIONS) | |
35 | |
36 #include "core/dom/ContextLifecycleObserver.h" | 34 #include "core/dom/ContextLifecycleObserver.h" |
37 #include "core/dom/Document.h" | 35 #include "core/dom/Document.h" |
38 #include "core/html/track/TextTrack.h" | 36 #include "core/html/track/TextTrack.h" |
39 #include "platform/geometry/FloatPoint.h" | 37 #include "platform/geometry/FloatPoint.h" |
40 #include "wtf/PassOwnPtr.h" | 38 #include "wtf/PassOwnPtr.h" |
41 #include "wtf/RefCounted.h" | 39 #include "wtf/RefCounted.h" |
42 | 40 |
43 namespace WebCore { | 41 namespace WebCore { |
44 | 42 |
45 class ExceptionState; | 43 class ExceptionState; |
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90 bool isScrollingRegion() { return m_scroll; } | 88 bool isScrollingRegion() { return m_scroll; } |
91 | 89 |
92 PassRefPtr<HTMLDivElement> getDisplayTree(); | 90 PassRefPtr<HTMLDivElement> getDisplayTree(); |
93 | 91 |
94 void appendTextTrackCueBox(PassRefPtr<TextTrackCueBox>); | 92 void appendTextTrackCueBox(PassRefPtr<TextTrackCueBox>); |
95 void displayLastTextTrackCueBox(); | 93 void displayLastTextTrackCueBox(); |
96 void willRemoveTextTrackCueBox(TextTrackCueBox*); | 94 void willRemoveTextTrackCueBox(TextTrackCueBox*); |
97 | 95 |
98 private: | 96 private: |
99 TextTrackRegion(ExecutionContext*); | 97 TextTrackRegion(ExecutionContext*); |
100 Document* ownerDocument() { return toDocument(m_executionContext); } | 98 Document* ownerDocument() { return toDocument(executionContext()); } |
101 | 99 |
102 void prepareRegionDisplayTree(); | 100 void prepareRegionDisplayTree(); |
103 | 101 |
104 // The timer is needed to continue processing when cue scrolling ended. | 102 // The timer is needed to continue processing when cue scrolling ended. |
105 void startTimer(); | 103 void startTimer(); |
106 void stopTimer(); | 104 void stopTimer(); |
107 void scrollTimerFired(Timer<TextTrackRegion>*); | 105 void scrollTimerFired(Timer<TextTrackRegion>*); |
108 | 106 |
109 enum RegionSetting { | 107 enum RegionSetting { |
110 None, | 108 None, |
111 Id, | 109 Id, |
112 Width, | 110 Width, |
113 Height, | 111 Height, |
114 RegionAnchor, | 112 RegionAnchor, |
115 ViewportAnchor, | 113 ViewportAnchor, |
116 Scroll | 114 Scroll |
117 }; | 115 }; |
118 | |
119 RegionSetting getSettingFromString(const String&); | 116 RegionSetting getSettingFromString(const String&); |
120 | |
121 void parseSettingValue(RegionSetting, const String&); | 117 void parseSettingValue(RegionSetting, const String&); |
122 void parseSetting(const String&, unsigned*); | 118 void parseSetting(const String&, unsigned*); |
123 | 119 |
124 static const AtomicString& textTrackCueContainerShadowPseudoId(); | 120 static const AtomicString& textTrackCueContainerShadowPseudoId(); |
125 static const AtomicString& textTrackCueContainerScrollingClass(); | 121 static const AtomicString& textTrackCueContainerScrollingClass(); |
126 static const AtomicString& textTrackRegionShadowPseudoId(); | 122 static const AtomicString& textTrackRegionShadowPseudoId(); |
127 | 123 |
128 String m_id; | 124 String m_id; |
129 String m_settings; | 125 String m_settings; |
130 | |
131 double m_width; | 126 double m_width; |
132 unsigned m_heightInLines; | 127 unsigned m_heightInLines; |
133 | |
134 FloatPoint m_regionAnchor; | 128 FloatPoint m_regionAnchor; |
135 FloatPoint m_viewportAnchor; | 129 FloatPoint m_viewportAnchor; |
136 | |
137 bool m_scroll; | 130 bool m_scroll; |
138 | 131 |
139 RefPtr<HTMLDivElement> m_regionDisplayTree; | |
140 | |
141 // The cue container is the container that is scrolled up to obtain the | 132 // The cue container is the container that is scrolled up to obtain the |
142 // effect of scrolling cues when this is enabled for the regions. | 133 // effect of scrolling cues when this is enabled for the regions. |
143 RefPtr<HTMLDivElement> m_cueContainer; | 134 RefPtr<HTMLDivElement> m_cueContainer; |
| 135 RefPtr<HTMLDivElement> m_regionDisplayTree; |
144 | 136 |
145 // The member variable track can be a raw pointer as it will never | 137 // The member variable track can be a raw pointer as it will never |
146 // reference a destroyed TextTrack, as this member variable | 138 // reference a destroyed TextTrack, as this member variable |
147 // is cleared in the TextTrack destructor and it is generally | 139 // is cleared in the TextTrack destructor and it is generally |
148 // set/reset within the addRegion and removeRegion methods. | 140 // set/reset within the addRegion and removeRegion methods. |
149 TextTrack* m_track; | 141 TextTrack* m_track; |
150 | 142 |
151 // Keep track of the current numeric value of the css "top" property. | 143 // Keep track of the current numeric value of the css "top" property. |
152 double m_currentTop; | 144 double m_currentTop; |
153 | 145 |
154 // The timer is used to display the next cue line after the current one has | 146 // The timer is used to display the next cue line after the current one has |
155 // been displayed. It's main use is for scrolling regions and it triggers as | 147 // been displayed. It's main use is for scrolling regions and it triggers as |
156 // soon as the animation for rolling out one line has finished, but | 148 // soon as the animation for rolling out one line has finished, but |
157 // currently it is used also for non-scrolling regions to use a single | 149 // currently it is used also for non-scrolling regions to use a single |
158 // code path. | 150 // code path. |
159 Timer<TextTrackRegion> m_scrollTimer; | 151 Timer<TextTrackRegion> m_scrollTimer; |
160 }; | 152 }; |
161 | 153 |
162 } // namespace WebCore | 154 } // namespace WebCore |
163 | |
164 #endif | 155 #endif |
165 #endif | |
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