#ifndef ABSTRACTINPUTMODE_H
#define ABSTRACTINPUTMODE_H

#include <QString>
#include <QSharedPointer>

#include "global.h"

class QKeyEvent;


    class InputModeEditorInterface;
    class InputModeStatusWidget;

    class AbstractInputMode
    {
    public:
        explicit AbstractInputMode(InputModeEditorInterface *p_interface);

        virtual ~AbstractInputMode();

        virtual QString name() const = 0;

        virtual InputMode mode() const = 0;

        virtual EditorMode editorMode() const = 0;

        // Get status widget of input mode.
        // Could be NULL.
        // The caller should hold this pointer during the usage and explicitly
        // remove the widget from QObject system at the end.
        virtual QSharedPointer<InputModeStatusWidget> statusWidget() = 0;

        virtual void activate() = 0;

        virtual void deactivate() = 0;

        virtual void focusIn() = 0;

        virtual void focusOut() = 0;

        // Return true if the key press is handled inside.
        virtual bool handleKeyPress(QKeyEvent *p_event) = 0;

        // Return true if the shortcut key event is handled inside.
        // If stolen, Qt will replay this key event immediately as an ordinary KeyPress.
        virtual bool stealShortcut(QKeyEvent *p_event) = 0;

        // Hook that will be called before/after the default KeyPress event handle.
        virtual void preKeyPressDefaultHandle(QKeyEvent *p_event) = 0;
        virtual void postKeyPressDefaultHandle(QKeyEvent *p_event) = 0;

    protected:
        InputModeEditorInterface *m_interface = nullptr;
    };


#endif // ABSTRACTINPUTMODE_H