/* OctaveGUI - A graphical user interface for Octave
 * Copyright (C) 2011 Jacob Dawid (jacob.dawid@googlemail.com)
 *
 * 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 "BrowserWidget.h"
#include <QVBoxLayout>
#include <QAction>
#include <QStyle>
#include <QApplication>

BrowserWidget::BrowserWidget (QWidget * parent):QWidget (parent)
{
  construct ();
}

void
BrowserWidget::construct ()
{
  QStyle *style = QApplication::style ();
  m_navigationToolBar = new QToolBar (this);
  m_webView = new QWebView (this);
  m_urlLineEdit = new QLineEdit (this);
  m_statusBar = new QStatusBar (this);
  m_progressBar = new QProgressBar (this);
  m_progressBar->setMaximumWidth (150);

  m_webView->setSizePolicy (QSizePolicy::Expanding, QSizePolicy::Expanding);
  QAction *backAction =
    new QAction (style->standardIcon (QStyle::SP_ArrowLeft),
		 "", m_navigationToolBar);
  QAction *forwardAction =
    new QAction (style->standardIcon (QStyle::SP_ArrowRight),
		 "", m_navigationToolBar);

  m_navigationToolBar->addAction (backAction);
  m_navigationToolBar->addAction (forwardAction);
  m_navigationToolBar->addWidget (m_urlLineEdit);

  QVBoxLayout *layout = new QVBoxLayout ();
  layout->addWidget (m_navigationToolBar);
  layout->addWidget (m_webView);

    QWidget *bottomWidget = new QWidget (this);
    QHBoxLayout *bottomLineLayout = new QHBoxLayout ();
    bottomLineLayout->addWidget (m_progressBar);
    bottomLineLayout->addWidget (m_statusBar);
    bottomLineLayout->setMargin (0);
    bottomWidget->setLayout (bottomLineLayout);

  layout->addWidget (bottomWidget);
  layout->setMargin (2);
  setLayout (layout);

  connect (backAction, SIGNAL (triggered ()), m_webView, SLOT (back ()));
  connect (forwardAction, SIGNAL (triggered ()), m_webView,
	   SLOT (forward ()));
  connect (m_webView, SIGNAL (urlChanged (QUrl)), this, SLOT (setUrl (QUrl)));
  connect (m_urlLineEdit, SIGNAL (returnPressed ()), this,
	   SLOT (jumpToWebsite ()));

  connect (m_webView, SIGNAL (statusBarMessage(QString)),
           m_statusBar, SLOT (showMessage(QString)));
  connect (m_webView, SIGNAL (loadProgress(int)),
           m_progressBar, SLOT (setValue(int)));
}

void
BrowserWidget::setUrl (QUrl url)
{
  m_urlLineEdit->setText (url.toString ());
}

void
BrowserWidget::jumpToWebsite ()
{
  QString url = m_urlLineEdit->text ();
  if (!url.startsWith ("http://") && !url.startsWith ("https://"))
    url = "http://" + url;
  load (url);
}

void
BrowserWidget::showStatusMessage (QString message)
{
  m_statusBar->showMessage (message, 1000);
}

void
BrowserWidget::load (QUrl url)
{
  m_webView->load (url);
}