/*

 * Copyright (C) 2010 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 COMPUTER, 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 COMPUTER, 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 FullscreenVideoController_h

#define FullscreenVideoController_h

#if ENABLE(VIDEO)

#include "MediaPlayerPrivateFullscreenWindow.h"

#include <WebCore/HTMLMediaElement.h>

#include <WebCore/Image.h>

#include <WebCore/IntPoint.h>

#include <WebCore/IntSize.h>

#include <wtf/RefPtr.h>

namespace WebCore {

class GraphicsContext;

#if USE(ACCELERATED_COMPOSITING)

class WKCACFLayer;

#endif

}

class HUDWidget {

public:

    HUDWidget(const WebCore::IntRect& rect) : m_rect(rect) { }

    virtual ~HUDWidget() { }

    virtual void draw(WebCore::GraphicsContext&) = 0;

    virtual void drag(const WebCore::IntPoint&, bool start) = 0;

    bool hitTest(const WebCore::IntPoint& point) const { return m_rect.contains(point); }

protected:

    WebCore::IntRect m_rect;

};

class HUDButton : public HUDWidget {

public:

    enum HUDButtonType {

        NoButton,

        PlayPauseButton,

        TimeSliderButton,

        VolumeUpButton,

        VolumeSliderButton,

        VolumeDownButton,

        ExitFullscreenButton

    };

    HUDButton(HUDButtonType, const WebCore::IntPoint&);

    ~HUDButton() { }

    virtual void draw(WebCore::GraphicsContext&);

    virtual void drag(const WebCore::IntPoint&, bool start) { }

    void setShowAltButton(bool b)  { m_showAltButton = b; }

private:

    RefPtr<WebCore::Image> m_buttonImage;

    RefPtr<WebCore::Image> m_buttonImageAlt;

    HUDButtonType m_type;

    bool m_showAltButton;

};

class HUDSlider : public HUDWidget {

public:

    enum HUDSliderButtonShape { RoundButton, DiamondButton };

    HUDSlider(HUDSliderButtonShape, int buttonSize, const WebCore::IntRect& rect);

    ~HUDSlider() { }

    virtual void draw(WebCore::GraphicsContext&);

    virtual void drag(const WebCore::IntPoint&, bool start);

    float value() const { return static_cast<float>(m_buttonPosition) / (m_rect.width() - m_buttonSize); }

    void setValue(float value) { m_buttonPosition = static_cast<int>(value * (m_rect.width() - m_buttonSize)); }

private:

    HUDSliderButtonShape m_buttonShape;

    int m_buttonSize;

    int m_buttonPosition;

    int m_dragStartOffset;

};

class FullscreenVideoController : WebCore::MediaPlayerPrivateFullscreenClient, public Noncopyable {

public:

    FullscreenVideoController();

    virtual ~FullscreenVideoController();

    void setMediaElement(WebCore::HTMLMediaElement*);

    WebCore::HTMLMediaElement* mediaElement() const { return m_mediaElement.get(); }

    void enterFullscreen();

    void exitFullscreen();

private:

    // MediaPlayerPrivateFullscreenWindowClient

    virtual LRESULT fullscreenClientWndProc(HWND, UINT message, WPARAM, LPARAM);

    void ensureWindow();

    bool canPlay() const;

    void play();

    void pause();

    float volume() const;

    void setVolume(float);

    float currentTime() const;

    void setCurrentTime(float);

    float duration() const;

    void beginScrubbing();

    void endScrubbing();

    WebCore::IntPoint fullscreenToHUDCoordinates(const WebCore::IntPoint& point) const

    {

        return WebCore::IntPoint(point.x()- m_hudPosition.x(), point.y() - m_hudPosition.y());

    }

    static void registerHUDWindowClass();

    static LRESULT CALLBACK hudWndProc(HWND, UINT message, WPARAM, LPARAM);

    void createHUDWindow();

    void timerFired(WebCore::Timer<FullscreenVideoController>*);

    void togglePlay();

    void draw();

    void onChar(int c);

    void onMouseDown(const WebCore::IntPoint&);

    void onMouseMove(const WebCore::IntPoint&);

    void onMouseUp(const WebCore::IntPoint&);

    void onKeyDown(int virtualKey);

    RefPtr<WebCore::HTMLMediaElement> m_mediaElement;

    HWND m_hudWindow;

    OwnPtr<HBITMAP> m_bitmap;

    WebCore::IntSize m_fullscreenSize;

    WebCore::IntPoint m_hudPosition;

    OwnPtr<WebCore::MediaPlayerPrivateFullscreenWindow> m_fullscreenWindow;

#if USE(ACCELERATED_COMPOSITING)

    RefPtr<WebCore::WKCACFLayer> m_rootChild;

    class LayoutClient;

    friend class LayoutClient;

    OwnPtr<LayoutClient> m_layoutClient;

#endif

    HUDButton m_playPauseButton;

    HUDButton m_timeSliderButton;

    HUDButton m_volumeUpButton;

    HUDButton m_volumeSliderButton;

    HUDButton m_volumeDownButton;

    HUDButton m_exitFullscreenButton;

    HUDSlider m_volumeSlider;

    HUDSlider m_timeSlider;

    HUDWidget* m_hitWidget;

    WebCore::IntPoint m_moveOffset;

    bool m_movingWindow;

    WebCore::Timer<FullscreenVideoController> m_timer;

};

#endif

#endif // FullscreenVideoController_h