mythnews.cpp

// POSIX headers
#include <unistd.h>

// C headers
#include <cmath>

// QT headers
#include <QCoreApplication>
#include <QDateTime>
#include <QDir>
#include <QTimer>
#include <QRegExp>
#include <QUrl>

// MythTV headers
#include <mythprogressdialog.h>
#include <mythuibuttonlist.h>
#include <mythmainwindow.h>
#include <mythdialogbox.h>
#include <mythcontext.h>
#include <mythuiimage.h>
#include <mythsystemlegacy.h>
#include <mythuitext.h>
#include <mythdate.h>
#include <mythdirs.h>
#include <mythdb.h>

#if QT_VERSION < 0x050000
#include <httpcomms.h>
#endif

// MythNews headers
#include "mythnews.h"
#include "mythnewseditor.h"
#include "newsdbutil.h"
#include "mythnewsconfig.h"

#define LOC      QString("MythNews: ")
#define LOC_WARN QString("MythNews, Warning: ")
#define LOC_ERR  QString("MythNews, Error: ")

/** \brief Creates a new MythNews Screen
 *  \param parent Pointer to the screen stack
 *  \param name The name of the window
 */
MythNews::MythNews(MythScreenStack *parent, const QString &name) :
    MythScreenType(parent, name),
    m_lock(QMutex::Recursive)
{
    // Setup cache directory

    QString fileprefix = GetConfDir();

    QDir dir(fileprefix);
    if (!dir.exists())
        dir.mkdir(fileprefix);
    fileprefix += "/MythNews";
    dir = QDir(fileprefix);
    if (!dir.exists())
        dir.mkdir(fileprefix);

    m_zoom = gCoreContext->GetSetting("WebBrowserZoomLevel", "1.0");
    m_browser = gCoreContext->GetSetting("WebBrowserCommand", "");

    // Initialize variables

    m_sitesList = m_articlesList = NULL;
    m_updatedText = m_titleText = m_descText = NULL;
    m_thumbnailImage = m_downloadImage = m_enclosureImage = NULL;
    m_menuPopup = NULL;
    m_progressPopup = NULL;

    m_TimerTimeout = 10*60*1000;
    m_httpGrabber = NULL;

    // Now do the actual work
    m_RetrieveTimer = new QTimer(this);
    connect(m_RetrieveTimer, SIGNAL(timeout()),
            this, SLOT(slotRetrieveNews()));
    m_UpdateFreq = gCoreContext->GetNumSetting("NewsUpdateFrequency", 30);

    m_RetrieveTimer->stop();
    m_RetrieveTimer->setSingleShot(false);
    m_RetrieveTimer->start(m_TimerTimeout);
}

MythNews::~MythNews()
{
    QMutexLocker locker(&m_lock);
}

bool MythNews::Create(void)
{
    QMutexLocker locker(&m_lock);

    bool foundtheme = false;

    // Load the theme for this screen
    foundtheme = LoadWindowFromXML("news-ui.xml", "news", this);

    if (!foundtheme)
        return false;

    bool err = false;
    UIUtilE::Assign(this, m_sitesList, "siteslist", &err);
    UIUtilE::Assign(this, m_articlesList, "articleslist", &err);
    UIUtilE::Assign(this, m_titleText, "title", &err);
    UIUtilE::Assign(this, m_descText, "description", &err);

    // these are all optional
    UIUtilW::Assign(this, m_nositesText, "nosites", &err);
    UIUtilW::Assign(this, m_updatedText, "updated", &err);
    UIUtilW::Assign(this, m_thumbnailImage, "thumbnail", &err);
    UIUtilW::Assign(this, m_enclosureImage, "enclosures", &err);
    UIUtilW::Assign(this, m_downloadImage, "download", &err);
    UIUtilW::Assign(this, m_podcastImage, "ispodcast", &err);

    if (err)
    {
        LOG(VB_GENERAL, LOG_ERR, "Cannot load screen 'news'");
        return false;
    }

    if (m_nositesText)
    {
        m_nositesText->SetText(tr("You haven't configured MythNews to use any sites."));
        m_nositesText->Hide();
    }

    BuildFocusList();

    SetFocusWidget(m_sitesList);

    loadSites();
    updateInfoView(m_sitesList->GetItemFirst());

    connect(m_sitesList, SIGNAL(itemSelected(MythUIButtonListItem*)),
            this, SLOT( slotSiteSelected(MythUIButtonListItem*)));
    connect(m_articlesList, SIGNAL(itemSelected( MythUIButtonListItem*)),
            this, SLOT( updateInfoView(MythUIButtonListItem*)));
    connect(m_articlesList, SIGNAL(itemClicked( MythUIButtonListItem*)),
            this, SLOT( slotViewArticle(MythUIButtonListItem*)));

    return true;
}

void MythNews::clearSites(void)
{
    m_NewsSites.clear();
    m_sitesList->Reset();
    m_articles.clear();
    m_articlesList->Reset();

    m_titleText->Reset();
    m_descText->Reset();

    if (m_updatedText)
        m_updatedText->Reset();

    if (m_downloadImage)
        m_downloadImage->Hide();

    if (m_enclosureImage)
        m_enclosureImage->Hide();

    if (m_podcastImage)
        m_podcastImage->Hide();

    if (m_thumbnailImage)
        m_thumbnailImage->Hide();
}

void MythNews::loadSites(void)
{
    QMutexLocker locker(&m_lock);

    clearSites();

    MSqlQuery query(MSqlQuery::InitCon());
    query.prepare(
        "SELECT name, url, ico, updated, podcast "
        "FROM newssites "
        "ORDER BY name");

    if (!query.exec())
    {
        MythDB::DBError(LOC_ERR + "Could not load sites from DB", query);
        return;
    }

    while (query.next())
    {
        QString name = query.value(0).toString();
        QString url  = query.value(1).toString();
        QString icon = query.value(2).toString();
        QDateTime time = MythDate::fromTime_t(query.value(3).toUInt());
        bool podcast = query.value(4).toInt();
        m_NewsSites.push_back(new NewsSite(name, url, time, podcast));
    }

    NewsSite::List::iterator it = m_NewsSites.begin();
    for (; it != m_NewsSites.end(); ++it)
    {
        MythUIButtonListItem *item =
            new MythUIButtonListItem(m_sitesList, (*it)->name());
        item->SetData(qVariantFromValue(*it));

        connect(*it, SIGNAL(finished(NewsSite*)),
                this, SLOT(slotNewsRetrieved(NewsSite*)));
    }

    slotRetrieveNews();

    if (m_nositesText)
    {
        if (m_NewsSites.size() == 0)
            m_nositesText->Show();
        else
            m_nositesText->Hide();
    }
}

void MythNews::updateInfoView(MythUIButtonListItem *selected)
{
    QMutexLocker locker(&m_lock);

    if (!selected)
        return;

    NewsSite *site = NULL;
    NewsArticle article;

    if (GetFocusWidget() == m_articlesList)
    {
        article = m_articles[selected];
        if (m_sitesList->GetItemCurrent())
            site = qVariantValue<NewsSite*>
                (m_sitesList->GetItemCurrent()->GetData());
    }
    else
    {
        site = qVariantValue<NewsSite*>(selected->GetData());
        if (m_articlesList->GetItemCurrent())
            article = m_articles[m_articlesList->GetItemCurrent()];
    }

    if (GetFocusWidget() == m_articlesList)
    {
        if (!article.title().isEmpty())
        {

            if (m_titleText)
                m_titleText->SetText(article.title());

            if (m_descText)
            {
                QString artText = article.description();
                // replace a few HTML characters
                artText.replace("&#8232;", "");   // LSEP
                artText.replace("&#8233;", "");   // PSEP
                artText.replace("&#163;",  "£");  // POUND
                artText.replace("&#173;",  "");   // ?
                artText.replace("&#8211;", "-");  // EN-DASH
                artText.replace("&#8220;", """"); // LEFT-DOUBLE-QUOTE
                artText.replace("&#8221;", """"); // RIGHT-DOUBLE-QUOTE
                artText.replace("&#8216;", "'");  // LEFT-SINGLE-QUOTE
                artText.replace("&#8217;", "'");  // RIGHT-SINGLE-QUOTE
                // Replace paragraph and break HTML with newlines
                if( artText.indexOf(QRegExp("</(p|P)>")) )
                {
                    artText.replace( QRegExp("<(p|P)>"), "");
                    artText.replace( QRegExp("</(p|P)>"), "\n\n");
                }
                else
                {
                    artText.replace( QRegExp("<(p|P)>"), "\n\n");
                    artText.replace( QRegExp("</(p|P)>"), "");
                }
                artText.replace( QRegExp("<(br|BR|)/>"), "\n");
                artText.replace( QRegExp("<(br|BR|)>"), "\n");
                // These are done instead of simplifyWhitespace
                // because that function also strips out newlines
                // Replace tab characters with nothing
                artText.replace( QRegExp("\t"), "");
                // Replace double space with single
                artText.replace( QRegExp("  "), "");
                // Replace whitespace at beginning of lines with newline
                artText.replace( QRegExp("\n "), "\n");
                // Remove any remaining HTML tags
                QRegExp removeHTML(QRegExp("</?.+>"));
                removeHTML.setMinimal(true);
                artText.remove((const QRegExp&) removeHTML);
                artText = artText.trimmed();
                m_descText->SetText(artText);
            }

            if (!article.thumbnail().isEmpty())
            {
                QString fileprefix = GetConfDir();

                QDir dir(fileprefix);
                if (!dir.exists())
                        dir.mkdir(fileprefix);

                fileprefix += "/MythNews/tcache";

                dir = QDir(fileprefix);
                if (!dir.exists())
                    dir.mkdir(fileprefix);

                QString url = article.thumbnail();
                QString sFilename = QString("%1/%2")
                    .arg(fileprefix)
                    .arg(qChecksum(url.toLocal8Bit().constData(),
                                   url.toLocal8Bit().size()));

#if QT_VERSION < 0x050000
                bool exists = QFile::exists(sFilename);
                if (!exists)
                    HttpComms::getHttpFile(sFilename, url, 20000, 1, 2);
#else
#warning MythNews::updateInfoView() has not yet been ported to Qt5
#endif

                if (m_thumbnailImage)
                {
                    m_thumbnailImage->SetFilename(sFilename);
                    m_thumbnailImage->Load();

                    if (!m_thumbnailImage->IsVisible())
                        m_thumbnailImage->Show();
                }
            }
            else
            {
                if (m_thumbnailImage)
                    m_thumbnailImage->Hide();

                if (!site->imageURL().isEmpty())
                {
                    QString fileprefix = GetConfDir();

                    QDir dir(fileprefix);
                    if (!dir.exists())
                        dir.mkdir(fileprefix);

                    fileprefix += "/MythNews/scache";

                    dir = QDir(fileprefix);
                    if (!dir.exists())
                        dir.mkdir(fileprefix);

                    QString url = site->imageURL();
                    QString extension = url.section('.', -1);

                    QString sitename = site->name();
                    QString sFilename = QString("%1/%2.%3").arg(fileprefix)
                                                           .arg(sitename)
                                                           .arg(extension);

#if QT_VERSION < 0x050000
                    bool exists = QFile::exists(sFilename);
                    if (!exists)
                        HttpComms::getHttpFile(sFilename, url, 20000, 1, 2);
#else
#warning MythNews::updateInfoView() has not yet been ported to Qt5
#endif

                    if (m_thumbnailImage)
                    {
                        m_thumbnailImage->SetFilename(sFilename);
                        m_thumbnailImage->Load();

                        if (!m_thumbnailImage->IsVisible())
                            m_thumbnailImage->Show();
                    }
                }
            }

            if (m_downloadImage)
            {
                if (!article.enclosure().isEmpty())
                {
                    if (!m_downloadImage->IsVisible())
                        m_downloadImage->Show();
                }
                else
                    m_downloadImage->Hide();
            }

            if (m_enclosureImage)
            {
                if (!article.enclosure().isEmpty())
                {
                    if (!m_enclosureImage->IsVisible())
                        m_enclosureImage->Show();
                }
                else
                    m_enclosureImage->Hide();
            }

            if (m_podcastImage)
                m_podcastImage->Hide();
        }
    }
    else
    {
        if (m_downloadImage)
            m_downloadImage->Hide();

        if (m_enclosureImage)
            m_enclosureImage->Hide();

        if (m_podcastImage)
            m_podcastImage->Hide();

        if (site)
        {
            if (m_titleText)
                m_titleText->SetText(site->name());

            if (m_descText)
                m_descText->SetText(site->description());

            if (m_thumbnailImage && m_thumbnailImage->IsVisible())
                m_thumbnailImage->Hide();

            if (m_podcastImage && site->podcast() == 1)
                m_podcastImage->Show();

            if (!site->imageURL().isEmpty())
            {
                QString fileprefix = GetConfDir();

                QDir dir(fileprefix);
                if (!dir.exists())
                        dir.mkdir(fileprefix);

                fileprefix += "/MythNews/scache";

                dir = QDir(fileprefix);
                if (!dir.exists())
                    dir.mkdir(fileprefix);

                QString url = site->imageURL();
                QString extension = url.section('.', -1);

                QString sitename = site->name();
                QString sFilename = QString("%1/%2.%3").arg(fileprefix)
                                                        .arg(sitename)
                                                        .arg(extension);

#if QT_VERSION < 0x050000
                bool exists = QFile::exists(sFilename);
                if (!exists)
                    HttpComms::getHttpFile(sFilename, url, 20000, 1, 2);
#else
#warning MythNews::updateInfoView() has not yet been ported to Qt5
#endif

                if (m_thumbnailImage)
                {
                    m_thumbnailImage->SetFilename(sFilename);
                    m_thumbnailImage->Load();

                    if (!m_thumbnailImage->IsVisible())
                        m_thumbnailImage->Show();
                }
            }
        }
    }

    if (m_updatedText)
    {

        if (site)
        {
            QString text(tr("Updated") + " - ");
            QDateTime updated(site->lastUpdated());
            if (updated.toTime_t() != 0) {
                text += MythDate::toString(site->lastUpdated(),
                                             MythDate::kDateTimeFull | MythDate::kSimplify);
            }
            else
                text += tr("Unknown");
            m_updatedText->SetText(text);
        }

#if QT_VERSION < 0x050000
        if (m_httpGrabber != NULL)
        {
            int progress = m_httpGrabber->getProgress();
            int total = m_httpGrabber->getTotal();
            if ((progress > 0) && (total > 0) && (progress < total))
            {
                float fProgress = (float)progress/total;
                QString text = tr("%1 of %2 (%3 percent)")
                        .arg(formatSize(progress, 2))
                        .arg(formatSize(total, 2))
                        .arg(floor(fProgress*100));
                m_updatedText->SetText(text);
            }
        }
#else
#warning MythNews::updateInfoView() has not yet been ported to Qt5
#endif
    }
}

QString MythNews::formatSize(long long bytes, int prec)
{
    long long sizeKB = bytes / 1024;

    if (sizeKB>1024*1024*1024) // Terabytes
    {
        double sizeGB = sizeKB/(1024*1024*1024.0);
        return QString("%1 TB").arg(sizeGB, 0, 'f', (sizeGB>10)?0:prec);
    }
    else if (sizeKB>1024*1024) // Gigabytes
    {
        double sizeGB = sizeKB/(1024*1024.0);
        return QString("%1 GB").arg(sizeGB, 0, 'f', (sizeGB>10)?0:prec);
    }
    else if (sizeKB>1024) // Megabytes
    {
        double sizeMB = sizeKB/1024.0;
        return QString("%1 MB").arg(sizeMB, 0, 'f', (sizeMB>10)?0:prec);
    }
    // Kilobytes
    return QString("%1 KB").arg(sizeKB);
}

bool MythNews::keyPressEvent(QKeyEvent *event)
{
    if (GetFocusWidget() && GetFocusWidget()->keyPressEvent(event))
        return true;

    bool handled = false;
    QStringList actions;
    handled = GetMythMainWindow()->TranslateKeyPress("News", event, actions);

    for (int i = 0; i < actions.size() && !handled; i++)
    {
        QString action = actions[i];
        handled = true;

        if (action == "RETRIEVENEWS")
            slotRetrieveNews();
        else if (action == "CANCEL")
            cancelRetrieve();
        else if (action == "MENU")
            ShowMenu();
        else if (action == "EDIT")
            ShowEditDialog(true);
        else if (action == "DELETE")
            deleteNewsSite();
        else if (action == "ESCAPE")
        {
            {
                QMutexLocker locker(&m_lock);

                if (m_progressPopup)
                {
                    m_progressPopup->Close();
                    m_progressPopup = NULL;
                }

                m_RetrieveTimer->stop();

                if (m_httpGrabber)
                    m_abortHttp = true;
            }

            Close();
        }
        else
            handled = false;
    }

    if (!handled && MythScreenType::keyPressEvent(event))
        handled = true;

    return handled;
}

void MythNews::slotRetrieveNews(void)
{
    QMutexLocker locker(&m_lock);

    if (m_NewsSites.empty())
        return;

    m_RetrieveTimer->stop();

    NewsSite::List::iterator it = m_NewsSites.begin();
    for (; it != m_NewsSites.end(); ++it)
    {
        if ((*it)->timeSinceLastUpdate() > m_UpdateFreq)
            (*it)->retrieve();
        else
            processAndShowNews(*it);
    }

    m_RetrieveTimer->stop();
    m_RetrieveTimer->setSingleShot(false);
    m_RetrieveTimer->start(m_TimerTimeout);
}

void MythNews::slotNewsRetrieved(NewsSite *site)
{
    unsigned int updated = site->lastUpdated().toTime_t();

    MSqlQuery query(MSqlQuery::InitCon());
    query.prepare("UPDATE newssites SET updated = :UPDATED "
                  "WHERE name = :NAME ;");
    query.bindValue(":UPDATED", updated);
    query.bindValue(":NAME", site->name());
    if (!query.exec() || !query.isActive())
        MythDB::DBError("news update time", query);

    processAndShowNews(site);
}

void MythNews::cancelRetrieve(void)
{
    QMutexLocker locker(&m_lock);

    NewsSite::List::iterator it = m_NewsSites.begin();
    for (; it != m_NewsSites.end(); ++it)
    {
        (*it)->stop();
        processAndShowNews(*it);
    }
}

void MythNews::processAndShowNews(NewsSite *site)
{
    QMutexLocker locker(&m_lock);

    if (!site)
        return;

    site->process();

    MythUIButtonListItem *siteUIItem = m_sitesList->GetItemCurrent();
    if (!siteUIItem)
        return;

    if (site != qVariantValue<NewsSite*>(siteUIItem->GetData()))
        return;

    m_articlesList->Reset();
    m_articles.clear();

    NewsArticle::List articles = site->GetArticleList();
    NewsArticle::List::iterator it = articles.begin();
    for (; it != articles.end(); ++it)
    {
        MythUIButtonListItem *item =
            new MythUIButtonListItem(m_articlesList, (*it).title());
        m_articles[item] = *it;
    }
}

void MythNews::slotSiteSelected(MythUIButtonListItem *item)
{
    QMutexLocker locker(&m_lock);

    if (!item || item->GetData().isNull())
        return;

    NewsSite *site = qVariantValue<NewsSite*>(item->GetData());
    if (!site)
        return;

    m_articlesList->Reset();
    m_articles.clear();

    NewsArticle::List articles = site->GetArticleList();
    NewsArticle::List::iterator it = articles.begin();
    for (; it != articles.end(); ++it)
    {
        MythUIButtonListItem *item =
            new MythUIButtonListItem(m_articlesList, (*it).title());
        m_articles[item] = *it;
    }

    updateInfoView(item);
}

void MythNews::slotProgressCancelled(void)
{
    QMutexLocker locker(&m_lock);

    m_abortHttp = true;
}

void MythNews::createProgress(const QString &title)
{
    QMutexLocker locker(&m_lock);

    if (m_progressPopup)
        return;

    QString message = title;

    MythScreenStack *popupStack = GetMythMainWindow()->GetStack("popup stack");

    m_progressPopup = new MythUIProgressDialog(message, popupStack,
                                               "mythnewsprogressdialog");

    if (m_progressPopup->Create())
        popupStack->AddScreen(m_progressPopup, false);
    else
    {
        delete m_progressPopup;
        m_progressPopup = NULL;
    }
}

bool MythNews::getHttpFile(const QString &sFilename, const QString &cmdURL)
{
#if QT_VERSION < 0x050000
    QMutexLocker locker(&m_lock);

    int redirectCount = 0;
    QByteArray data(0);
    bool res = false;
    m_httpGrabber = NULL;
    QString hostname;
    QString fileUrl = cmdURL;

    createProgress(tr("Downloading media..."));
    while (1)
    {
        QUrl qurl(fileUrl);
        if (hostname.isEmpty())
            hostname = qurl.host();  // hold onto original host

        if (qurl.host().isEmpty()) // can occur on redirects to partial paths
            qurl.setHost(hostname);

        if (m_httpGrabber != NULL)
            delete m_httpGrabber;

        m_httpGrabber = new HttpComms;
        m_abortHttp = false;

        m_httpGrabber->request(qurl, -1, true);

        while ((!m_httpGrabber->isDone()) && (!m_abortHttp))
        {
            int progress = m_httpGrabber->getProgress();
            int total = m_httpGrabber->getTotal();
            if ((progress > 0) && (total > 5120) && (progress < total)) // Ignore total less than 5kb as we're probably looking at a redirect page or similar
            {
                m_progressPopup->SetTotal(total);
                m_progressPopup->SetProgress(progress);
                float fProgress = (float)progress/total;
                QString text = tr("%1 of %2 (%3 percent)")
                        .arg(formatSize(progress, 2))
                        .arg(formatSize(total, 2))
                        .arg(floor(fProgress*100));
                if (m_updatedText)
                    m_updatedText->SetText(text);
            }
            qApp->processEvents();
            usleep(100000);
        }

        if (m_abortHttp)
            break;

        // Check for redirection
        if (!m_httpGrabber->getRedirectedURL().isEmpty())
        {
            if (redirectCount++ < 3)
                fileUrl = m_httpGrabber->getRedirectedURL();

            // Try again
            continue;
        }

        if (m_httpGrabber->getStatusCode() > 400)
        {
            // Error, request failed
            break;
        }

        data = m_httpGrabber->getRawData();

        if (data.size() > 0)
        {
            QFile file(sFilename);
            if (file.open(QIODevice::WriteOnly))
            {
                file.write(data);
                file.close();
                res = true;
            }
        }
        break;
    }

    if (m_progressPopup)
    {
        m_progressPopup->Close();
        m_progressPopup = NULL;
    }

    delete m_httpGrabber;
    m_httpGrabber = NULL;
    return res;
#else
#warning MythNews::getHttpFile() has not yet been ported to Qt5
    (void) sFilename;
    (void) cmdURL;
    return false;
#endif
}

void MythNews::slotViewArticle(MythUIButtonListItem *articlesListItem)
{
    QMutexLocker locker(&m_lock);

    QMap<MythUIButtonListItem*,NewsArticle>::const_iterator it =
        m_articles.find(articlesListItem);

    if (it == m_articles.end())
        return;

    const NewsArticle article = *it;

    if (article.articleURL().isEmpty())
        return;

    if (article.enclosure().isEmpty())
    {
        QString cmdUrl(article.articleURL());

        if (m_browser.isEmpty())
        {
            ShowOkPopup(tr("No browser command set! MythNews needs MythBrowser to be installed."));
            return;
        }

        // display the web page
        if (m_browser.toLower() == "internal")
        {
            GetMythMainWindow()->HandleMedia("WebBrowser", cmdUrl);
            return;
        }
        else
        {
            QString cmd = m_browser;
            cmd.replace("%ZOOM%", m_zoom);
            cmd.replace("%URL%", cmdUrl);
            cmd.replace('\'', "%27");
            cmd.replace("&","\\&");
            cmd.replace(";","\\;");

            GetMythMainWindow()->AllowInput(false);
            myth_system(cmd, kMSDontDisableDrawing);
            GetMythMainWindow()->AllowInput(true);
            return;
        }
    }

    playVideo(article);
}

void MythNews::ShowEditDialog(bool edit)
{
    QMutexLocker locker(&m_lock);

    NewsSite *site = NULL;

    if (edit)
    {
        MythUIButtonListItem *siteListItem = m_sitesList->GetItemCurrent();

        if (!siteListItem || siteListItem->GetData().isNull())
            return;

        site = qVariantValue<NewsSite*>(siteListItem->GetData());
    }

    MythScreenStack *mainStack = GetMythMainWindow()->GetMainStack();

    MythNewsEditor *mythnewseditor = new MythNewsEditor(site, edit, mainStack,
                                                        "mythnewseditor");

    if (mythnewseditor->Create())
    {
        connect(mythnewseditor, SIGNAL(Exiting()), SLOT(loadSites()));
        mainStack->AddScreen(mythnewseditor);
    }
    else
        delete mythnewseditor;
}

void MythNews::ShowFeedManager()
{
    MythScreenStack *mainStack = GetMythMainWindow()->GetMainStack();

    MythNewsConfig *mythnewsconfig = new MythNewsConfig(mainStack,
                                                        "mythnewsconfig");

    if (mythnewsconfig->Create())
    {
        connect(mythnewsconfig, SIGNAL(Exiting()), SLOT(loadSites()));
        mainStack->AddScreen(mythnewsconfig);
    }
    else
        delete mythnewsconfig;
}

void MythNews::ShowMenu(void)
{
    QMutexLocker locker(&m_lock);

    QString label = tr("Options");

    MythScreenStack *popupStack =
                            GetMythMainWindow()->GetStack("popup stack");

    m_menuPopup = new MythDialogBox(label, popupStack, "mythnewsmenupopup");

    if (m_menuPopup->Create())
    {
        popupStack->AddScreen(m_menuPopup);

        m_menuPopup->SetReturnEvent(this, "options");

        m_menuPopup->AddButton(tr("Manage Feeds"));
        m_menuPopup->AddButton(tr("Add Feed"));
        if (m_NewsSites.size() > 0)
        {
            m_menuPopup->AddButton(tr("Edit Feed"));
            m_menuPopup->AddButton(tr("Delete Feed"));
        }
    }
    else
    {
        delete m_menuPopup;
        m_menuPopup = NULL;
    }
}

void MythNews::deleteNewsSite(void)
{
    QMutexLocker locker(&m_lock);

    MythUIButtonListItem *siteUIItem = m_sitesList->GetItemCurrent();

    if (siteUIItem && !siteUIItem->GetData().isNull())
    {
        NewsSite *site = qVariantValue<NewsSite*>(siteUIItem->GetData());
        if (site)
        {
            removeFromDB(site->name());
            loadSites();
        }
    }
}

// does not need locking
void MythNews::playVideo(const NewsArticle &article)
{
    GetMythMainWindow()->HandleMedia("Internal", article.enclosure(),
                                     article.description(), article.title());
}

// does not need locking
void MythNews::customEvent(QEvent *event)
{
    if (event->type() == DialogCompletionEvent::kEventType)
    {
        DialogCompletionEvent *dce = (DialogCompletionEvent*)(event);

        QString resultid  = dce->GetId();
        int     buttonnum = dce->GetResult();

        if (resultid == "options")
        {
            if (m_NewsSites.size() > 0)
            {
                if (buttonnum == 0)
                    ShowFeedManager();
                else if (buttonnum == 1)
                    ShowEditDialog(false);
                else if (buttonnum == 2)
                    ShowEditDialog(true);
                else if (buttonnum == 3)
                    deleteNewsSite();
            }
            else
                if (buttonnum == 0)
                    ShowEditDialog(false);
        }

        m_menuPopup = NULL;
    }
}