Source/core/html/shadow/MediaControlElementTypes.h

/*
 * Copyright (C) 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
 * Copyright (C) 2012 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 *
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 *     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.
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 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
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 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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#ifndef MediaControlElementTypes_h
#define MediaControlElementTypes_h

#include "core/html/HTMLDivElement.h"
#include "core/html/HTMLInputElement.h"
#include "core/html/HTMLMediaElement.h"
#include "core/html/MediaControllerInterface.h"
#include "core/rendering/RenderBlock.h"

namespace WebCore {

// Must match WebKitSystemInterface.h
enum MediaControlElementType {
    MediaEnterFullscreenButton = 0,
    MediaMuteButton,
    MediaPlayButton,
    MediaSeekBackButton,
    MediaSeekForwardButton,
    MediaSlider,
    MediaSliderThumb,
    MediaRewindButton,
    MediaReturnToRealtimeButton,
    MediaShowClosedCaptionsButton,
    MediaHideClosedCaptionsButton,
    MediaUnMuteButton,
    MediaPauseButton,
    MediaTimelineContainer,
    MediaCurrentTimeDisplay,
    MediaTimeRemainingDisplay,
    MediaStatusDisplay,
    MediaControlsPanel,
    MediaVolumeSliderContainer,
    MediaVolumeSlider,
    MediaVolumeSliderThumb,
    MediaFullScreenVolumeSlider,
    MediaFullScreenVolumeSliderThumb,
    MediaVolumeSliderMuteButton,
    MediaTextTrackDisplayContainer,
    MediaTextTrackDisplay,
    MediaExitFullscreenButton,
    MediaOverlayPlayButton,
};

HTMLMediaElement* toParentMediaElement(Node*);
inline HTMLMediaElement* toParentMediaElement(RenderObject* renderer) { return toParentMediaElement(renderer->node()); }

MediaControlElementType mediaControlElementType(Node*);

// ----------------------------

class MediaControlElement {
public:
    virtual void hide();
    virtual void show();
    virtual bool isShowing() const;

    virtual MediaControlElementType displayType() { return m_displayType; }
    virtual const AtomicString& part() const = 0;

    virtual void setMediaController(MediaControllerInterface* controller) { m_mediaController = controller; }
    virtual MediaControllerInterface* mediaController() const { return m_mediaController; }

protected:
    explicit MediaControlElement(MediaControlElementType, HTMLElement*);
    ~MediaControlElement() { }

    virtual void setDisplayType(MediaControlElementType);
    virtual bool isMediaControlElement() const { return true; }

private:
    MediaControllerInterface* m_mediaController;
    MediaControlElementType m_displayType;
    HTMLElement* m_element;
};

// ----------------------------

class MediaControlDivElement : public HTMLDivElement, public MediaControlElement {
protected:
    virtual bool isMediaControlElement() const OVERRIDE { return MediaControlElement::isMediaControlElement(); }
    explicit MediaControlDivElement(Document&, MediaControlElementType);
};

// ----------------------------

class MediaControlInputElement : public HTMLInputElement, public MediaControlElement {
protected:
    virtual bool isMediaControlElement() const OVERRIDE { return MediaControlElement::isMediaControlElement(); }
    explicit MediaControlInputElement(Document&, MediaControlElementType);

private:
    virtual void updateDisplayType() { }
    virtual bool isMouseFocusable() const OVERRIDE;
};

// ----------------------------

class MediaControlTimeDisplayElement : public MediaControlDivElement {
public:
    void setCurrentValue(double);
    double currentValue() const { return m_currentValue; }

protected:
    explicit MediaControlTimeDisplayElement(Document&, MediaControlElementType);

private:
    double m_currentValue;
};

// ----------------------------

class MediaControlMuteButtonElement : public MediaControlInputElement {
public:
    void changedMute();

    virtual bool willRespondToMouseClickEvents() OVERRIDE { return true; }

protected:
    explicit MediaControlMuteButtonElement(Document&, MediaControlElementType);

    virtual void defaultEventHandler(Event*) OVERRIDE;

private:
    virtual void updateDisplayType() OVERRIDE;
};

// ----------------------------

class MediaControlVolumeSliderElement : public MediaControlInputElement {
public:
    virtual bool willRespondToMouseMoveEvents() OVERRIDE;
    virtual bool willRespondToMouseClickEvents() OVERRIDE;
    void setVolume(double);
    void setClearMutedOnUserInteraction(bool);

protected:
    explicit MediaControlVolumeSliderElement(Document&);

    virtual void defaultEventHandler(Event*) OVERRIDE;

private:
    bool m_clearMutedOnUserInteraction;
};

} // namespace WebCore

#endif // MediaControlElementTypes_h