/** LICENSE ********************************************************************
 **
 ** smolbote: yet another qute browser
 ** Copyright (C) 2017  Xian Nox
 **
 ** 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
 ** (at your option) 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/>.
 **
 ******************************************************************************/

#include "dockingwidget.h"
#include "mainwindow.h"

#include <QApplication>

DockWidget::DockWidget(const QString &title, QWidget *parent, Qt::WindowFlags flags) :
    QDockWidget(title, parent, flags)
{
}

void DockWidget::closeEvent(QCloseEvent *event)
{
    setParent(0);
    event->ignore();
}

DockingWidget::DockingWidget(const QString &title, QWidget *parent) :
    QWidget(parent)
{
    window = nullptr;
    dock = new DockWidget(title, 0);
    dock->setWidget(this);
    dock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);

    connect(qApp, &QApplication::aboutToQuit, [this]() {
        this->setParent(0);
    });
}

DockingWidget::~DockingWidget()
{
    // If the dock has a parent, it will take care of it
    // calling delete later here if the dock has a parent causes a crash
    if(!dock->parent()) {
        dock->deleteLater();
    }
}

void DockingWidget::show()
{
    MainWindow *caller = qobject_cast<MainWindow *>(sender()->parent());
    // if already shown and on the same window - hide the widget
    if(isVisible() && window == caller) {
        dock->setParent(0);
        return;
    }

    // show() gets called by a QAction in MainWindow
    window = caller;
    if(window) {

        // dockable widgets
        dock->setParent(window);
        //window->addDockWidget(Qt::RightDockWidgetArea, dock);
        window->addTabbedDock(Qt::RightDockWidgetArea, dock);

    } else {
        qWarning("DockingWidget not called by MainWindow");
    }

    QWidget::show();
}