#ifndef PREVIEWCONTAINER_H
#define PREVIEWCONTAINER_H

#include <QWidget>
#include <QBoxLayout>
#include <QTimer>

#include "dbus/dbusdockentry.h"
#include "constants.h"
#include "appsnapshot.h"
#include "floatingpreview.h"

#include <DWindowManagerHelper>

#define SNAP_WIDTH       200
#define SNAP_HEIGHT      130

DWIDGET_USE_NAMESPACE

class PreviewContainer : public QWidget
{
    Q_OBJECT

public:
    explicit PreviewContainer(QWidget *parent = 0);

signals:
    void requestActivateWindow(const WId wid) const;
    void requestPreviewWindow(const WId wid) const;
    void requestCancelPreview() const;
    void requestHidePreview() const;
    void requestCheckWindows() const;

public:
    void setWindowInfos(const WindowDict &infos);
    void updateSnapshots();

public slots:
    void updateLayoutDirection(const Dock::Position dockPos);
    void checkMouseLeave();
    void prepareHide();

private:
    void adjustSize();
    void appendSnapWidget(const WId wid);

    void enterEvent(QEvent *e);
    void leaveEvent(QEvent *e);
    void dragEnterEvent(QDragEnterEvent *e);
    void dragLeaveEvent(QDragLeaveEvent *e);

private slots:
    void previewEntered(const WId wid);
    void moveFloatingPreview(const QPoint &p);

private:
    bool m_needActivate;
    QMap<WId, AppSnapshot *> m_snapshots;

    FloatingPreview *m_floatingPreview;
    QBoxLayout *m_windowListLayout;

    QTimer *m_mouseLeaveTimer;
    DWindowManagerHelper *m_wmHelper;
};

#endif // PREVIEWCONTAINER_H