/*
    KWin - the KDE window manager
    This file is part of the KDE project.

    SPDX-FileCopyrightText: 2009 Lucas Murray <lmurray@undefinedfire.com>

    SPDX-License-Identifier: GPL-2.0-or-later
*/

#ifndef KWIN_HIGHLIGHTWINDOW_H
#define KWIN_HIGHLIGHTWINDOW_H

#include <kwinanimationeffect.h>

namespace KWin
{

class HighlightWindowEffect : public AnimationEffect
{
    Q_OBJECT

public:
    HighlightWindowEffect();

    int requestedEffectChainPosition() const override {
        return 70;
    }

    bool provides(Feature feature) override;
    bool perform(Feature feature, const QVariantList &arguments) override;

public Q_SLOTS:
    void slotWindowAdded(KWin::EffectWindow* w);
    void slotWindowClosed(KWin::EffectWindow *w);
    void slotWindowDeleted(KWin::EffectWindow *w);
    void slotPropertyNotify(KWin::EffectWindow* w, long atom, EffectWindow *addedWindow = nullptr);

private:
    void startGhostAnimation(EffectWindow *window, int duration = -1);
    void startHighlightAnimation(EffectWindow *window, int duration = -1);
    void startRevertAnimation(EffectWindow *window);

    bool isHighlighted(EffectWindow *window) const;

    void prepareHighlighting();
    void finishHighlighting();
    void highlightWindows(const QVector<KWin::EffectWindow *> &windows);

    long m_atom;
    QList<EffectWindow *> m_highlightedWindows;
    QHash<EffectWindow *, quint64> m_animations;
    QEasingCurve m_easingCurve;
    int m_fadeDuration;
    EffectWindow *m_monitorWindow;
    QList<WId> m_highlightedIds;
    float m_ghostOpacity = 0.15;
};

} // namespace

#endif