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 /* This file is part of the KDE project
  *
  * Copyright (C) 2008 Bernhard Beschow <bbeschow AT cs DOT tu-berlin DOT de>
  *
  * 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 "khtmlviewbar.h"
 
 #include "khtmlview.h"
 #include "khtmlviewbarwidget.h"
 
 #include "khtml_debug.h"
 
 #include <QBoxLayout>
 #include <QKeyEvent>
 
 KHTMLViewBar::KHTMLViewBar(Position position, KHTMLView *view, QWidget *parent) :
     QWidget(parent),
     m_view(view),
     m_permanentBarWidget(nullptr)
 {
     const QBoxLayout::Direction direction = (position == Top ? QBoxLayout::TopToBottom : QBoxLayout::BottomToTop);
 
     setLayout(new QBoxLayout(direction, this));
     layout()->setContentsMargins(0, 0, 0, 0);
     layout()->setSpacing(0);
 }
 
 void KHTMLViewBar::addBarWidget(KHTMLViewBarWidget *newBarWidget)
 {
     if (hasWidget(newBarWidget)) {
         // qCDebug(KHTML_LOG) << "this bar widget is already added";
         return;
     }
     // add new widget, invisible...
     newBarWidget->hide();
     layout()->addWidget(newBarWidget);
     connect(newBarWidget, SIGNAL(hideMe()), SLOT(hideCurrentBarWidget()));
 
     // qCDebug(KHTML_LOG) << "add barwidget " << newBarWidget;
 }
 
 void KHTMLViewBar::addPermanentBarWidget(KHTMLViewBarWidget *barWidget)
 {
     // remove old widget from layout (if any)
     if (m_permanentBarWidget) {
         m_permanentBarWidget->hide();
         layout()->removeWidget(m_permanentBarWidget);
     }
 
     layout()->addWidget(barWidget /*, 0, Qt::AlignBottom*/);  // FIXME
     m_permanentBarWidget = barWidget;
     m_permanentBarWidget->show();
 
     setViewBarVisible(true);
 }
 
 void KHTMLViewBar::removePermanentBarWidget(KHTMLViewBarWidget *barWidget)
 {
     if (m_permanentBarWidget != barWidget) {
         // qCDebug(KHTML_LOG) << "no such permanent widget exists in bar";
         return;
     }
 
     if (!m_permanentBarWidget) {
         return;
     }
 
     m_permanentBarWidget->hide();
     layout()->removeWidget(m_permanentBarWidget);
     m_permanentBarWidget = nullptr;
 }
 
 bool KHTMLViewBar::hasPermanentWidget(KHTMLViewBarWidget *barWidget) const
 {
     return (m_permanentBarWidget == barWidget);
 }
 
 void KHTMLViewBar::showBarWidget(KHTMLViewBarWidget *barWidget)
 {
     // raise correct widget
 // TODO  m_stack->setCurrentWidget (barWidget);
     barWidget->show();
 
     // if we have any permanent widget, bar is always visible,
     // no need to show it
     if (!m_permanentBarWidget) {
         setViewBarVisible(true);
     }
 }
 
 bool KHTMLViewBar::hasWidget(KHTMLViewBarWidget *wid) const
 {
     Q_UNUSED(wid);
     return layout()->count() != 0;
 }
 
 void KHTMLViewBar::hideCurrentBarWidget()
 {
 //  m_stack->hide();
 
     // if we have any permanent widget, bar is always visible,
     // no need to hide it
     if (!m_permanentBarWidget) {
         setViewBarVisible(false);
     }
 
     m_view->setFocus();
     // qCDebug(KHTML_LOG)<<"hide barwidget";
 }
 
 void KHTMLViewBar::setViewBarVisible(bool visible)
 {
     setVisible(visible);
 }
 
 void KHTMLViewBar::keyPressEvent(QKeyEvent *event)
 {
     if (event->key() == Qt::Key_Escape) {
         hideCurrentBarWidget();
         return;
     }
     QWidget::keyPressEvent(event);
 
 }
 
 void KHTMLViewBar::hideEvent(QHideEvent *event)
 {
     Q_UNUSED(event);
 //   if (!event->spontaneous())
 //     m_view->setFocus();
 }