YiViewController.h

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// © You i Labs Inc. 2000-2017. All rights reserved.
#ifndef _YI_VIEW_CONTROLLER_H_
#define _YI_VIEW_CONTROLLER_H_

#include "animation/YiTimeline.h"
#include "view/YiSceneView.h"
#include "scenetree/YiSceneManager.h"
#include "signal/YiSignalHandler.h"

class CYISceneManager;


class CYIViewController : public CYIScriptableObject, public CYISignalHandler
{
public:
    CYIViewController(CYISceneManager *pSceneManager);

    CYIViewController(CYISceneManager *pSceneManager, CYISceneView *pView);
    virtual ~CYIViewController();

    virtual void Init();
    virtual void UpdateView();

    virtual void Begin();
    
    virtual void End();
    
    void SetViewLoaded(bool bIsLoaded);

    virtual bool IsViewLoaded() const;

    void SetClearFocus(bool bClearFocus);
    
    bool ShouldClearFocus() const;

    virtual CYISceneNode* GetSceneRoot() const;

    virtual void        OnBeginAnimationComplete();
    
    virtual void        OnEndAnimationComplete();

protected:
    
    class TimelineHelper : public CYISignalHandler
    {
    public:
        enum ANIMATION_DIRECTION
        {
            ANIMATE_FORWARD, 
            ANIMATE_REVERSE 
        };

        TimelineHelper();
        virtual ~TimelineHelper();

        void    SetAnimation(CYIAbstractTimeline *pAnimation, ANIMATION_DIRECTION eDirection);

        void    Start();

    public:
        CYISignal<> AnimationCompleted;

    private:
        void                        OnAnimationEnd();

        CYIAbstractTimeline                *m_pAnimation;
        ANIMATION_DIRECTION                 m_eAnimationDirection;
    };

    virtual void BuildTimelines();
    
    void SetBeginAnimation(CYIAbstractTimeline *pAnimation, TimelineHelper::ANIMATION_DIRECTION eDirection);
    
    void SetEndAnimation(CYIAbstractTimeline *pAnimation, TimelineHelper::ANIMATION_DIRECTION eDirection);

    CYISceneManager            *m_pSceneManager;
    CYISceneView               *m_pView;
    CYIAbstractTimeline        *m_pAnimationIn;
    CYIAbstractTimeline        *m_pAnimationOut;

private:
    virtual CYISceneView *BuildView() = 0;
    
    TimelineHelper m_BeginAnimation;
    TimelineHelper m_EndAnimation;

    bool                         m_bClearFocus;
    bool                         m_bIsViewLoaded;
};

#endif // _YI_VIEW_CONTROLLER_H_