/* This file is part of the KDE project
   Copyright (C) 1999 Simon Hausmann <hausmann@kde.org>
             (C) 1999 David Faure <faure@kde.org>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/

#include "mainwindow.h"
#include <kedittoolbar.h>
#include <kparts/event.h>
#include <kparts/part.h>
#include <kcomponentdata.h>
#include <kstatusbar.h>
#include <khelpmenu.h>
#include <kstandarddirs.h>
#include <QtGui/QApplication>
#include <kxmlguifactory.h>
#include <kconfiggroup.h>

#include <kdebug.h>

#include <assert.h>

using namespace KParts;

namespace KParts
{
class MainWindowPrivate
{
public:
    MainWindowPrivate()
        : m_activePart(nullptr),
        m_bShellGUIActivated(false),
        m_helpMenu(nullptr)
    {
    }

    QPointer<Part> m_activePart;
    bool m_bShellGUIActivated;
    KHelpMenu *m_helpMenu;
};
}

MainWindow::MainWindow(QWidget *parent, Qt::WindowFlags f)
    : KXmlGuiWindow(parent, f),
    d(new MainWindowPrivate())
{
}


MainWindow::~MainWindow()
{
    delete d;
}

void MainWindow::createGUI(Part *part)
{
#if 0
    kDebug() << "part=" << part
             << ( part ? part->metaObject()->className() : "" )
             << ( part ? part->objectName() : "" );
#endif
    KXMLGUIFactory *factory = guiFactory();

    assert(factory);

    if (d->m_activePart) {
#if 0
    kDebug() << "deactivating GUI for" << d->m_activePart
             << d->m_activePart->metaObject()->className()
             << d->m_activePart->objectName();
#endif

        GUIActivateEvent ev(false);
        QApplication::sendEvent(d->m_activePart, &ev);

        factory->removeClient( d->m_activePart );

        disconnect(
            d->m_activePart, SIGNAL(setWindowCaption(QString)),
            this, SLOT(setCaption(QString))
        );
        disconnect(
            d->m_activePart, SIGNAL(setStatusBarText(QString)),
            this, SLOT(slotSetStatusBarText(QString))
        );
    }

    if (!d->m_bShellGUIActivated) {
        createShellGUI();
        d->m_bShellGUIActivated = true;
    }

    if (part) {
        // do this before sending the activate event
        connect(
            part, SIGNAL(setWindowCaption(QString)),
            this, SLOT(setCaption(QString))
        );
        connect(
            part, SIGNAL(setStatusBarText(QString)),
            this, SLOT(slotSetStatusBarText(QString))
        );

        factory->addClient(part);

        GUIActivateEvent ev(true);
        QApplication::sendEvent(part, &ev);
    }

    d->m_activePart = part;
}

void MainWindow::slotSetStatusBarText(const QString &text)
{
    statusBar()->showMessage(text);
}

void MainWindow::createShellGUI(bool create)
{
    assert(d->m_bShellGUIActivated != create);
    d->m_bShellGUIActivated = create;
    if (create) {
        if (isHelpMenuEnabled() && !d->m_helpMenu) {
            d->m_helpMenu = new KHelpMenu(this, componentData().aboutData(), true, actionCollection());
        }

        QString f = xmlFile();
        setXMLFile( KStandardDirs::locate("config", "ui/ui_standards.rc", componentData()));
        if (!f.isEmpty()) {
            setXMLFile(f, true);
        } else {
            QString auto_file(componentData().componentName() + "ui.rc");
            setXMLFile(auto_file, true);
        }

        GUIActivateEvent ev(true);
        QApplication::sendEvent(this, &ev);

        guiFactory()->addClient(this);
    } else {
        GUIActivateEvent ev(false);
        QApplication::sendEvent(this, &ev);

        guiFactory()->removeClient(this);
    }
}

bool MainWindow::queryClose()
{
    // query part first
    ReadWritePart* rwpart = qobject_cast<ReadWritePart*>(d->m_activePart);
    if (rwpart && !rwpart->queryClose()) {
        return false;
    }
    // then KXmlGuiWindow
    return KXmlGuiWindow::queryClose();
}

void KParts::MainWindow::saveNewToolbarConfig()
{
    createGUI(d->m_activePart);
    KConfigGroup cg(KGlobal::config(), QString());
    applyMainWindowSettings(cg);
}

#include "moc_mainwindow.cpp"