WebMediaPlayerClientImpl.h revision 2daae5fd11344eaa88a0d92b0f6d65f8d2255c00 
1/*
2 * Copyright (C) 2009 Google 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.
29 */
30
31#ifndef WebMediaPlayerClientImpl_h
32#define WebMediaPlayerClientImpl_h
33
34#if ENABLE(VIDEO)
35
36#include "MediaPlayerPrivate.h"
37#include "VideoFrameChromium.h"
38#include "VideoFrameProvider.h"
39#include "VideoLayerChromium.h"
40#include "WebMediaPlayerClient.h"
41#include <wtf/OwnPtr.h>
42
43namespace WebKit {
44
45class WebMediaElement;
46class WebMediaPlayer;
47
48// This class serves as a bridge between WebCore::MediaPlayer and
49// WebKit::WebMediaPlayer.
50class WebMediaPlayerClientImpl : public WebCore::MediaPlayerPrivateInterface
51#if USE(ACCELERATED_COMPOSITING)
52                               , public WebCore::VideoFrameProvider
53#endif
54                               , public WebMediaPlayerClient {
55
56public:
57    static bool isEnabled();
58    static void setIsEnabled(bool);
59    static void registerSelf(WebCore::MediaEngineRegistrar);
60
61    static WebMediaPlayerClientImpl* fromMediaElement(const WebMediaElement* element);
62
63    // Returns the encapsulated WebKit::WebMediaPlayer.
64    WebMediaPlayer* mediaPlayer() const;
65
66    // WebMediaPlayerClient methods:
67    virtual ~WebMediaPlayerClientImpl();
68    virtual void networkStateChanged();
69    virtual void readyStateChanged();
70    virtual void volumeChanged(float);
71    virtual void muteChanged(bool);
72    virtual void timeChanged();
73    virtual void repaint();
74    virtual void durationChanged();
75    virtual void rateChanged();
76    virtual void sizeChanged();
77    virtual void sawUnsupportedTracks();
78    virtual float volume() const;
79    virtual void playbackStateChanged();
80    virtual WebMediaPlayer::Preload preload() const;
81
82    // MediaPlayerPrivateInterface methods:
83    virtual void load(const WTF::String& url);
84    virtual void cancelLoad();
85#if USE(ACCELERATED_COMPOSITING)
86    virtual WebCore::PlatformLayer* platformLayer() const;
87#endif
88    virtual WebCore::PlatformMedia platformMedia() const;
89    virtual void play();
90    virtual void pause();
91    virtual void prepareToPlay();
92    virtual bool supportsFullscreen() const;
93    virtual bool supportsSave() const;
94    virtual WebCore::IntSize naturalSize() const;
95    virtual bool hasVideo() const;
96    virtual bool hasAudio() const;
97    virtual void setVisible(bool);
98    virtual float duration() const;
99    virtual float currentTime() const;
100    virtual void seek(float time);
101    virtual bool seeking() const;
102    virtual void setEndTime(float time);
103    virtual void setRate(float);
104    virtual bool paused() const;
105    virtual void setVolume(float);
106    virtual WebCore::MediaPlayer::NetworkState networkState() const;
107    virtual WebCore::MediaPlayer::ReadyState readyState() const;
108    virtual float maxTimeSeekable() const;
109    virtual WTF::PassRefPtr<WebCore::TimeRanges> buffered() const;
110    virtual int dataRate() const;
111    virtual bool totalBytesKnown() const;
112    virtual unsigned totalBytes() const;
113    virtual unsigned bytesLoaded() const;
114    virtual void setSize(const WebCore::IntSize&);
115    virtual void paint(WebCore::GraphicsContext*, const WebCore::IntRect&);
116    virtual void paintCurrentFrameInContext(WebCore::GraphicsContext*, const WebCore::IntRect&);
117    virtual void setPreload(WebCore::MediaPlayer::Preload);
118    virtual bool hasSingleSecurityOrigin() const;
119    virtual WebCore::MediaPlayer::MovieLoadType movieLoadType() const;
120    virtual unsigned decodedFrameCount() const;
121    virtual unsigned droppedFrameCount() const;
122    virtual unsigned audioDecodedByteCount() const;
123    virtual unsigned videoDecodedByteCount() const;
124#if USE(ACCELERATED_COMPOSITING)
125    virtual bool supportsAcceleratedRendering() const;
126
127    // VideoFrameProvider methods:
128    virtual WebCore::VideoFrameChromium* getCurrentFrame();
129    virtual void putCurrentFrame(WebCore::VideoFrameChromium*);
130#endif
131
132private:
133    WebMediaPlayerClientImpl();
134    void startDelayedLoad();
135    void loadInternal();
136
137    static WebCore::MediaPlayerPrivateInterface* create(WebCore::MediaPlayer*);
138    static void getSupportedTypes(WTF::HashSet<WTF::String>&);
139    static WebCore::MediaPlayer::SupportsType supportsType(
140        const WTF::String& type, const WTF::String& codecs);
141#if USE(ACCELERATED_COMPOSITING)
142    bool acceleratedRenderingInUse();
143#endif
144
145    WebCore::MediaPlayer* m_mediaPlayer;
146    OwnPtr<WebMediaPlayer> m_webMediaPlayer;
147    String m_url;
148    bool m_delayingLoad;
149    WebCore::MediaPlayer::Preload m_preload;
150#if USE(ACCELERATED_COMPOSITING)
151    RefPtr<WebCore::VideoLayerChromium> m_videoLayer;
152    bool m_supportsAcceleratedCompositing;
153#endif
154    static bool m_isEnabled;
155};
156
157} // namespace WebKit
158
159#endif
160
161#endif
162