MediaProducer.h   [plain text]


/*
 * Copyright (C) 2014 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.
 */

#ifndef MediaProducer_h
#define MediaProducer_h

namespace WebCore {

class MediaProducer {
public:
    enum MediaState {
        IsNotPlaying = 0,
        IsPlayingAudio = 1 << 0,
        IsPlayingVideo = 1 << 1,
        IsPlayingToExternalDevice = 1 << 2,
        RequiresPlaybackTargetMonitoring = 1 << 3,
        ExternalDeviceAutoPlayCandidate = 1 << 4,
        DidPlayToEnd = 1 << 5,
        IsSourceElementPlaying = 1 << 6,
        IsNextTrackControlEnabled = 1 << 7,
        IsPreviousTrackControlEnabled = 1 << 8,
        HasPlaybackTargetAvailabilityListener = 1 << 9,
        HasAudioOrVideo = 1 << 10,
        HasActiveMediaCaptureDevice = 1 << 11,
    };
    typedef unsigned MediaStateFlags;

    virtual MediaStateFlags mediaState() const = 0;
    virtual void pageMutedStateDidChange() = 0;

protected:
    virtual ~MediaProducer() { }
};

}

#endif