#ifndef FILEMANAGEWIDGET_H
#define FILEMANAGEWIDGET_H

#include <QWidget>
#include <QListWidget>
#include <QTimer>

namespace Ui {
class FileManageWidget;
}

class FileManageWidget : public QWidget
{
    Q_OBJECT

public:
    explicit FileManageWidget(QWidget *parent = 0);
    ~FileManageWidget();

    enum FilterType {
        JobFile,
        Image,
        Font,
        All
    };

protected:
    virtual bool eventFilter(QObject *watched, QEvent *event) override;

private slots:
    void onFilterCBoxSelectChanged(int i);
    void onExportBtnClicked();
    void onImportBtnClicked();
    void onSelectAllBtnClicked();
    void onCancelAllBtnClicked();
    void onDelSelectedBtnClicked();
    void onUDiskCheckTimeout();

    void refreshButtonsStatus();

private:

    bool checkUDiskPresent();
    bool ensureUDiskDocDir();
    int refreshFileList(QListWidget* listView);
    void onUDiskStateChanged();

    void copyFiles(QListWidget* from, QListWidget* to);

    Ui::FileManageWidget *ui;

    int m_currFilterType;
    QListWidget* m_focusedListView = nullptr;

    static constexpr int AbsPathRole = Qt::UserRole + 1;

    QTimer* m_udiskCheckTimer = nullptr;
    bool m_hasUDisk = false;

    void applyStyleSheet();    // 应用样式表
};

#endif // FILEMANAGEWIDGET_H