/*
 * Copyright (C) 2022 ~ 2022 Deepin Technology Co., Ltd.
 *
 * Author:     donghualin <donghualin@uniontech.com>
 *
 * Maintainer: donghualin <donghualin@uniontech.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef WINDOWMANAGER_H
#define WINDOWMANAGER_H

#include "constants.h"
#include "statusnotifierwatcher_interface.h"

#include <QObject>

namespace Dtk {namespace Gui { class DWindowManagerHelper; }}

class MainWindowBase;
class MainWindow;
class TrayMainWindow;
class MultiScreenWorker;
class MenuWorker;
class QDBusConnectionInterface;

using namespace Dtk::Gui;

class WindowManager : public QObject
{
    Q_OBJECT

public:
    explicit WindowManager(MultiScreenWorker *multiScreenWorker, QObject *parent = nullptr);
    ~WindowManager() override;

    void addWindow(MainWindowBase *window);
    void launch();
    void sendNotifications();
    void callShow();
    void resizeDock(int offset, bool dragging);
    QRect geometry() const;

Q_SIGNALS:
    void panelGeometryChanged();

private:
    void initConnection();
    void initSNIHost();
    void initMember();
    void updateMainGeometry(const Dock::HideState &hideState);
    QParallelAnimationGroup *createAnimationGroup(const Dock::AniAction &aniAction, const QString &screenName, const Dock::Position &position) const;

    void showAniFinish();
    void hideAniFinish();
    QRect getDockGeometry(bool withoutScale = false) const;         // 计算左右侧加起来的区域大小

    void RegisterDdeSession();
    void updateDockGeometry(const QRect &rect);

private Q_SLOTS:
    void onUpdateDockGeometry(const Dock::HideMode &hideMode);
    void onPositionChanged(const Dock::Position &position);
    void onDisplayModeChanged(const Dock::DisplayMode &displayMode);

    void onDbusNameOwnerChanged(const QString &name, const QString &oldOwner, const QString &newOwner);

    void onPlayAnimation(const QString &screenName, const Dock::Position &pos, Dock::AniAction act, bool containMouse = false, bool updatePos = false);
    void onChangeDockPosition(QString fromScreen, QString toScreen, const Dock::Position &fromPos, const Dock::Position &toPos);
    void onRequestUpdateFrontendGeometry();
    void onRequestNotifyWindowManager();

private:
    MultiScreenWorker *m_multiScreenWorker;
    QString m_sniHostService;

    Dock::DisplayMode m_displayMode;
    Dock::Position m_position;

    QDBusConnectionInterface *m_dbusDaemonInterface;
    org::kde::StatusNotifierWatcher *m_sniWatcher;      // DBUS状态通知
    QList<MainWindowBase *> m_topWindows;
};

#endif // WINDOWMANAGER_H