unhoverdeletemixin.cpp

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE or copy at https://www.boost.org/LICENSE_1_0.txt)
 **********************************************************************/
 
#include "unhoverdeletemixin.h"
#include <QWidget>
#include <QEvent>
#include <QTimer>
#include <QtDebug>
#include <QApplication>
#include <QStyle>
 
namespace LC::Util
{
    UnhoverDeleteMixin::UnhoverDeleteMixin (QObject *watched, const char *slot)
    : QObject (watched)
    , LeaveTimer_ (new QTimer (this))
    {
        watched->installEventFilter (this);
 
        LeaveTimer_->setSingleShot (true);
        connect (LeaveTimer_,
                SIGNAL (timeout ()),
                watched,
                slot);
    }
 
    namespace
    {
        int DefaultTimeout ()
        {
            return QApplication::style ()->styleHint (QStyle::SH_ToolTip_WakeUpDelay) * 2;
        }
    }
 
    void UnhoverDeleteMixin::Start (std::optional<int> timeout)
    {
        if (!ContainsMouse_)
            LeaveTimer_->start (timeout.value_or (DefaultTimeout ()));
    }
 
    void UnhoverDeleteMixin::Stop()
    {
        LeaveTimer_->stop ();
    }
 
    bool UnhoverDeleteMixin::eventFilter (QObject*, QEvent *event)
    {
        switch (event->type ())
        {
        case QEvent::Enter:
            ContainsMouse_ = true;
            LeaveTimer_->stop ();
            break;
        case QEvent::Leave:
            ContainsMouse_ = false;
            LeaveTimer_->start (DefaultTimeout ());
            break;
        default:
            break;
        }
 
        return false;
    }
}