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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef HOVERWATCHER_H
#define HOVERWATCHER_H
#include <QObject>
#include <QEvent>
#include <QScroller>
class QWidget;
class HoverWatcher : public QObject
{
Q_OBJECT
private:
explicit HoverWatcher(QWidget *watched);
static QMap<QWidget *, HoverWatcher *> m_hoverWatchers;
public:
~HoverWatcher();
enum HoverAction {
Entered,
MousePress,
MouseRelease,
Left,
Ignore
};
Q_ENUM(HoverAction);
bool eventFilter(QObject *obj, QEvent *event) override;
Qt::CursorShape cursorShape(HoverAction type) const;
Qt::MouseButtons mouseButtons() const { return m_mouseButtons; }
static HoverWatcher *watcher(QWidget *watched);
static const HoverWatcher *watcher(const QWidget *watched);
static bool hasWatcher(QWidget *widget);
static void dismiss(QWidget *watched);
public slots:
void setCursorShape(HoverAction type, Qt::CursorShape shape);
void unSetCursorShape(HoverAction type);
void setMouseButtons(Qt::MouseButtons buttons);
void setMouseButton(Qt::MouseButton button, bool enable);
signals:
void entered();
void mousePressed();
void mouseReleased();
void left();
void hoverAction(HoverAction action);
private slots:
void handleScrollerStateChange(QScroller::State state);
private:
QWidget *m_watched;
std::array<std::optional<Qt::CursorShape>, HoverAction::Ignore> m_cursorShapes;
Qt::MouseButtons m_mouseButtons = Qt::MouseButton::LeftButton;
void handleAction(HoverAction action);
void setApplicationCursor(HoverAction action) const;
bool hasShape(HoverAction action) const;
};
#endif // HOVERWATCHER_H
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