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1 /*
2  * Copyright (C) 2007, 2008, 2009 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 COMPUTER, 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 COMPUTER, 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 RenderMedia_h
27 #define RenderMedia_h
28 
29 #if ENABLE(VIDEO)
30 
31 #include "RenderReplaced.h"
32 #include "Timer.h"
33 
34 namespace WebCore {
35 
36 class HTMLInputElement;
37 class HTMLMediaElement;
38 class MediaControlMuteButtonElement;
39 class MediaControlPlayButtonElement;
40 class MediaControlSeekButtonElement;
41 class MediaControlRewindButtonElement;
42 class MediaControlReturnToRealtimeButtonElement;
43 class MediaControlTimelineElement;
44 class MediaControlFullscreenButtonElement;
45 class MediaControlTimeDisplayElement;
46 class MediaControlStatusDisplayElement;
47 class MediaControlTimelineContainerElement;
48 class MediaControlElement;
49 class MediaPlayer;
50 
51 class RenderMedia : public RenderReplaced {
52 public:
53     RenderMedia(HTMLMediaElement*);
54     RenderMedia(HTMLMediaElement*, const IntSize& intrinsicSize);
55     virtual ~RenderMedia();
56 
children()57     const RenderObjectChildList* children() const { return &m_children; }
children()58     RenderObjectChildList* children() { return &m_children; }
59 
60     HTMLMediaElement* mediaElement() const;
61     MediaPlayer* player() const;
62 
63     static String formatTime(float time);
64 
65     bool shouldShowTimeDisplayControls() const;
66 
67     void updateFromElement();
68     void updatePlayer();
69     void updateControls();
70     void updateTimeDisplay();
71 
72     void forwardEvent(Event*);
73 
74 protected:
75     virtual void layout();
76 
77 private:
virtualChildren()78     virtual RenderObjectChildList* virtualChildren() { return children(); }
virtualChildren()79     virtual const RenderObjectChildList* virtualChildren() const { return children(); }
80 
81     virtual void destroy();
82 
renderName()83     virtual const char* renderName() const { return "RenderMedia"; }
isMedia()84     virtual bool isMedia() const { return true; }
85 
86     virtual int lowestPosition(bool includeOverflowInterior = true, bool includeSelf = true) const;
87     virtual int rightmostPosition(bool includeOverflowInterior = true, bool includeSelf = true) const;
88     virtual int leftmostPosition(bool includeOverflowInterior = true, bool includeSelf = true) const;
89 
90     void createControlsShadowRoot();
91     void destroyControlsShadowRoot();
92     void createPanel();
93     void createMuteButton();
94     void createPlayButton();
95     void createSeekBackButton();
96     void createSeekForwardButton();
97     void createRewindButton();
98     void createReturnToRealtimeButton();
99     void createStatusDisplay();
100     void createTimelineContainer();
101     void createTimeline();
102     void createCurrentTimeDisplay();
103     void createTimeRemainingDisplay();
104     void createFullscreenButton();
105 
106     void timeUpdateTimerFired(Timer<RenderMedia>*);
107 
108     void updateControlVisibility();
109     void changeOpacity(HTMLElement*, float opacity);
110     void opacityAnimationTimerFired(Timer<RenderMedia>*);
111 
112     virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
113 
114     RefPtr<HTMLElement> m_controlsShadowRoot;
115     RefPtr<MediaControlElement> m_panel;
116     RefPtr<MediaControlMuteButtonElement> m_muteButton;
117     RefPtr<MediaControlPlayButtonElement> m_playButton;
118     RefPtr<MediaControlSeekButtonElement> m_seekBackButton;
119     RefPtr<MediaControlSeekButtonElement> m_seekForwardButton;
120     RefPtr<MediaControlRewindButtonElement> m_rewindButton;
121     RefPtr<MediaControlReturnToRealtimeButtonElement> m_returnToRealtimeButton;
122     RefPtr<MediaControlTimelineElement> m_timeline;
123     RefPtr<MediaControlFullscreenButtonElement> m_fullscreenButton;
124     RefPtr<MediaControlTimelineContainerElement> m_timelineContainer;
125     RefPtr<MediaControlTimeDisplayElement> m_currentTimeDisplay;
126     RefPtr<MediaControlTimeDisplayElement> m_timeRemainingDisplay;
127     RefPtr<MediaControlStatusDisplayElement> m_statusDisplay;
128     RenderObjectChildList m_children;
129     Node* m_lastUnderNode;
130     Node* m_nodeUnderMouse;
131 
132     Timer<RenderMedia> m_timeUpdateTimer;
133     Timer<RenderMedia> m_opacityAnimationTimer;
134     bool m_mouseOver;
135     double m_opacityAnimationStartTime;
136     double m_opacityAnimationDuration;
137     float m_opacityAnimationFrom;
138     float m_opacityAnimationTo;
139 };
140 
toRenderMedia(RenderObject * object)141 inline RenderMedia* toRenderMedia(RenderObject* object)
142 {
143     ASSERT(!object || object->isMedia());
144     return static_cast<RenderMedia*>(object);
145 }
146 
147 // This will catch anyone doing an unnecessary cast.
148 void toRenderMedia(const RenderMedia*);
149 
150 } // namespace WebCore
151 
152 #endif
153 #endif // RenderMedia_h
154