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#include <QApplication>
#include <QObject>
#include <QSlider>
#include <QScrollBar>

#include <QtCore/qplugin.h>
#include "qtactileFeedback.h"

#include <touchfeedback.h>

void QTactileFeedback::touchFeedback(QEvent *event, const QWidget *widget)
{
    //Lets share the global instance for touch feedback (you are NOT allowed to try and delete it!).
    MTouchFeedback* feedback = MTouchFeedback::Instance();

    //If the widget itself is not handling focus, try to use focusProxy widget.
    const QWidget *w = ((widget->focusPolicy() == Qt::NoFocus) && (widget->focusProxy())) ? widget->focusProxy() : widget;

    //Only give tactile feedback for enabled widgets that take focus.
    if (feedback && w && w->isEnabled() && w->isWidgetType() && w->isVisible()) {
        //Scrollbars are 'special' that they don't take focus (nor they have focusProxy), yet we'd like to have tactile feedback for them
        if (w->focusPolicy() == Qt::NoFocus)
            if (!qobject_cast<const QScrollBar *>(w))
                return;

        //Don't give tactile feedback for widgets that are outside topmost dialog.
        QWidget *dialog = QApplication::activeModalWidget();
        if (dialog) {
            QList<const QWidget *> allChildren = dialog->findChildren<const QWidget *>();
            if (!allChildren.contains(w))
                return;
        }

        //Widget specific tactile feedback.
        if (qobject_cast<const QSlider *>(w) || qobject_cast<const QScrollBar *>(w))
            feedback->InstantFeedback(ETouchFeedbackSensitive);
        else
            feedback->InstantFeedback(ETouchFeedbackBasic);
    }
}

Q_EXPORT_PLUGIN2("feedback", QTactileFeedback);