/* ============================================================
*
* This file is a part of the rekonq project
*
* Copyright (C) 2008-2010 by Andrea Diamantini <adjam7 at gmail dot com>
* Copyright (C) 2009-2010 by Lionel Chauvin <megabigbug@yahoo.fr>
*
*
* 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 2 of
* the License or (at your option) version 3 or any later version
* accepted by the membership of KDE e.V. (or its successor approved
* by the membership of KDE e.V.), which shall act as a proxy 
* defined in Section 14 of version 3 of the license.
* 
* 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/>.
*
* ============================================================ */


// Self Includes
#include "webtab.h"
#include "webtab.moc"

// Auto Includes
#include "rekonq.h"

// Local Includes
#include "application.h"
#include "mainwindow.h"
#include "mainview.h"
#include "webpage.h"
#include "bookmarksmanager.h"
#include "walletbar.h"
#include "previewselectorbar.h"

// KDE Includes
#include <KService>
#include <KUriFilterData>
#include <KStandardShortcut>
#include <KMenu>
#include <KActionMenu>
#include <KWebView>
#include <kwebwallet.h>
#include <KDE/KMessageBox>

// Qt Includes
#include <QContextMenuEvent>
#include <QWheelEvent>
#include <QMouseEvent>
#include <QClipboard>
#include <QKeyEvent>
#include <QAction>
#include <QVBoxLayout>

// Defines
#define QL1S(x)  QLatin1String(x)


WebTab::WebTab(QWidget *parent)
    : QWidget(parent)
    , m_progress(0)
{
    QVBoxLayout *l = new QVBoxLayout(this);
    l->setMargin(0);
    l->setSpacing(0);

    QWidget *messageBar = new QWidget(this);
    l->addWidget(messageBar);
    messageBar->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Minimum);

    QVBoxLayout *l2 = new QVBoxLayout(messageBar);
    l2->setMargin(0);
    l2->setSpacing(0);

    WebView *view = new WebView(this);
    l->addWidget(view);
    view->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);

    // fix focus handling
    setFocusProxy( view );

    KWebWallet *wallet = view->page()->wallet();
   
    if(wallet)
    {
        connect(wallet, SIGNAL(saveFormDataRequested(const QString &, const QUrl &)),
                this, SLOT(createWalletBar(const QString &, const QUrl &)));
    }

    connect(view, SIGNAL(loadProgress(int)), this, SLOT(updateProgress(int)));
    connect(view, SIGNAL(loadFinished(bool)), this, SLOT(loadFinished(bool)));
}


WebTab::~WebTab()
{
}


WebView *WebTab::view()
{
    WebView *view = qobject_cast<WebView *>( layout()->itemAt(1)->widget() );
    return view;
}


WebPage *WebTab::page()
{
    return view()->page();
}


KUrl WebTab::url() 
{
    return KUrl( view()->url() ); 
}


int WebTab::progress()
{
    return m_progress;
}


void WebTab::updateProgress(int p)
{
    m_progress = p;
}


void WebTab::loadFinished(bool)
{
    m_progress = 0;
}


void WebTab::createWalletBar(const QString &key, const QUrl &url)
{
    // check if the url is in the wallet blacklist
    QString urlString = url.toString();
    QStringList blackList = ReKonfig::walletBlackList();
    if( blackList.contains( urlString ) )
        return;
    
    KWebWallet *wallet = page()->wallet();
    QWidget *messageBar = layout()->itemAt(0)->widget();

    WalletBar *walletBar = new WalletBar(messageBar);
    walletBar->onSaveFormData(key,url);
    messageBar->layout()->addWidget(walletBar);

    connect(walletBar, SIGNAL(saveFormDataAccepted(const QString &)),
            wallet, SLOT(acceptSaveFormDataRequest(const QString &)));
    connect(walletBar, SIGNAL(saveFormDataRejected(const QString &)),
            wallet, SLOT(rejectSaveFormDataRequest(const QString &)));
}


void WebTab::createPreviewSelectorBar(int index)
{
    QWidget *messageBar = layout()->itemAt(0)->widget();
    PreviewSelectorBar *bar = new PreviewSelectorBar(index, messageBar);
    messageBar->layout()->addWidget(bar);
    
    connect(page(), SIGNAL(loadStarted()), bar, SLOT(loadProgress()));
    connect(page(), SIGNAL(loadProgress(int)), bar, SLOT(loadProgress()));
    connect(page(), SIGNAL(loadFinished(bool)), bar, SLOT(loadFinished()));
    connect(page()->mainFrame(), SIGNAL(urlChanged(QUrl)), bar, SLOT(verifyUrl()));
}


bool WebTab::hasRSSInfo()
{
    _rssList.clear();
    QWebElementCollection col = page()->mainFrame()->findAllElements("link");
    foreach(QWebElement el, col)
    {
        if( el.attribute("type") == QL1S("application/rss+xml") || el.attribute("type") == QL1S("application/rss+xml") )
        {
            if( el.attribute("href").startsWith( QL1S("http") ) )
            {
                _rssList << KUrl( el.attribute("href") );
            }
            else
            {
                KUrl u = url();
                // NOTE
                // cd() is probably better than setPath() here, 
                // for all those url sites just having a path
                if(u.cd( el.attribute("href") ))
                    _rssList << u;
            }
        }
    }
    
    return !_rssList.isEmpty();
}


void WebTab::showRSSInfo()
{
    QString urlList = QString("Here are the rss link found: <br /><br />");
    foreach(const KUrl &url, _rssList)
    {
        urlList += QString("<a href=\"") + url.url() + QString("\">") + url.url() + QString("</a><br />");
    }
    urlList += QString("<br />Enough for now.. waiting for some cool akonadi based feeds management :)");
    
    KMessageBox::information( view(), 
                              urlList,
                              "RSS Management"
                            );
}