From 460c52653ab0dcca6f19a4f492ed2c5e4e963ab0 Mon Sep 17 00:00:00 2001
From: toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>
Date: Wed, 25 Nov 2009 17:56:58 +0000
Subject: Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
 BUG:215923

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
---
 akregator/src/articleviewer.cpp | 797 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 797 insertions(+)
 create mode 100644 akregator/src/articleviewer.cpp

(limited to 'akregator/src/articleviewer.cpp')

diff --git a/akregator/src/articleviewer.cpp b/akregator/src/articleviewer.cpp
new file mode 100644
index 00000000..942ce623
--- /dev/null
+++ b/akregator/src/articleviewer.cpp
@@ -0,0 +1,797 @@
+/*
+    This file is part of Akregator.
+
+    Copyright (C) 2004 Sashmit Bhaduri <smt@vfemail.net>
+                  2005 Frank Osterfeld <frank.osterfeld at kdemail.net>
+    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) 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, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+    As a special exception, permission is given to link this program
+    with any edition of Qt, and distribute the resulting executable,
+    without including the source code for Qt in the source distribution.
+*/
+
+#include <qdatetime.h>
+#include <qevent.h>
+#include <qscrollview.h>
+#include <qvaluelist.h>
+
+#include <kaction.h>
+#include <kapplication.h>
+#include <kdebug.h>
+#include <kglobalsettings.h>
+#include <khtmlview.h>
+#include <klocale.h>
+#include <kprocess.h>
+#include <krun.h>
+#include <kstandarddirs.h>
+#include <kshell.h>
+#include <kmessagebox.h>
+#include <kio/netaccess.h>
+#include <libkdepim/kfileio.h>
+
+#include "aboutdata.h"
+#include "akregator_run.h"
+#include "akregatorconfig.h"
+#include "articleviewer.h"
+#include "feed.h"
+#include "folder.h"
+#include "article.h"
+#include "treenode.h"
+#include "treenodevisitor.h"
+#include "tagnode.h"
+#include "utils.h"
+
+namespace Akregator {
+
+// from kmail::headerstyle.cpp
+static inline QString directionOf(const QString &str)
+{
+    return str.isRightToLeft() ? "rtl" : "ltr" ;
+}
+
+class ArticleViewer::ShowSummaryVisitor : public TreeNodeVisitor
+{
+    public:
+    
+    ShowSummaryVisitor(ArticleViewer* view) : m_view(view) {}
+    
+    virtual bool visitFeed(Feed* node)
+    {
+        m_view->m_link = QString();
+        
+        QString text;
+        text = QString("<div class=\"headerbox\" dir=\"%1\">\n").arg(QApplication::reverseLayout() ? "rtl" : "ltr");
+        
+        text += QString("<div class=\"headertitle\" dir=\"%1\">").arg(directionOf(Utils::stripTags(node->title())));
+        text += node->title();
+        if(node->unread() == 0)
+            text += i18n(" (no unread articles)");
+        else
+            text += i18n(" (1 unread article)", " (%n unread articles)", node->unread());
+        text += "</div>\n"; // headertitle
+        text += "</div>\n"; // /headerbox
+        
+        if (!node->image().isNull()) // image
+        {
+            text += QString("<div class=\"body\">");
+            QString url=node->xmlUrl();
+            QString file = url.replace("/", "_").replace(":", "_");
+            KURL u(m_view->m_imageDir);
+            u.setFileName(file);
+            text += QString("<a href=\"%1\"><img class=\"headimage\" src=\"%2.png\"></a>\n").arg(node->htmlUrl()).arg(u.url());
+        }
+        else text += "<div class=\"body\">";
+        
+        
+        if( !node->description().isEmpty() )
+        {
+            text += QString("<div dir=\"%1\">").arg(Utils::stripTags(directionOf(node->description())));
+            text += i18n("<b>Description:</b> %1<br><br>").arg(node->description());
+            text += "</div>\n"; // /description
+        }
+        
+        if ( !node->htmlUrl().isEmpty() )
+        {
+            text += QString("<div dir=\"%1\">").arg(directionOf(node->htmlUrl()));
+            text += i18n("<b>Homepage:</b> <a href=\"%1\">%2</a>").arg(node->htmlUrl()).arg(node->htmlUrl());
+            text += "</div>\n"; // / link
+        }
+        
+        //text += i18n("<b>Unread articles:</b> %1").arg(node->unread());
+        text += "</div>"; // /body
+        
+        m_view->renderContent(text);
+        return true;
+    }
+    
+    virtual bool visitFolder(Folder* node)
+    {
+        m_view->m_link = QString();
+        
+        QString text;
+        text = QString("<div class=\"headerbox\" dir=\"%1\">\n").arg(QApplication::reverseLayout() ? "rtl" : "ltr");
+        text += QString("<div class=\"headertitle\" dir=\"%1\">%2").arg(directionOf(Utils::stripTags(node->title()))).arg(node->title());
+        if(node->unread() == 0)
+            text += i18n(" (no unread articles)");
+        else
+            text += i18n(" (1 unread article)", " (%n unread articles)", node->unread());
+        text += QString("</div>\n");
+        text += "</div>\n"; // /headerbox
+    
+        m_view->renderContent(text);
+        return true;
+    }
+
+    virtual bool visitTagNode(TagNode* node)
+    {
+        m_view->m_link = QString();
+        
+        QString text;
+        text = QString("<div class=\"headerbox\" dir=\"%1\">\n").arg(QApplication::reverseLayout() ? "rtl" : "ltr");
+        text += QString("<div class=\"headertitle\" dir=\"%1\">%2").arg(directionOf(Utils::stripTags(node->title()))).arg(node->title());
+        if(node->unread() == 0)
+            text += i18n(" (no unread articles)");
+        else
+            text += i18n(" (1 unread article)", " (%n unread articles)", node->unread());
+        text += QString("</div>\n");
+        text += "</div>\n"; // /headerbox
+    
+        m_view->renderContent(text);
+        return true;
+    }
+
+    private:
+
+    ArticleViewer* m_view;
+};
+
+ArticleViewer::ArticleViewer(QWidget *parent, const char *name)
+    : Viewer(parent, name), m_htmlFooter(), m_currentText(), m_node(0), m_viewMode(NormalView)
+{
+    setJScriptEnabled(false);
+    setJavaEnabled(false);
+    setPluginsEnabled(false);
+    
+    m_showSummaryVisitor = new ShowSummaryVisitor(this);
+    setXMLFile(locate("data", "akregator/articleviewer.rc"), true);
+
+    generateNormalModeCSS();
+    generateCombinedModeCSS();
+    new KAction( i18n("&Scroll Up"), QString::null, "Up", this, SLOT(slotScrollUp()), actionCollection(), "articleviewer_scroll_up" );
+    new KAction( i18n("&Scroll Down"), QString::null, "Down", this, SLOT(slotScrollDown()), actionCollection(), "articleviewer_scroll_down" );
+    
+    connect(this, SIGNAL(selectionChanged()), this, SLOT(slotSelectionChanged()));
+
+    connect(kapp, SIGNAL(kdisplayPaletteChanged()), this, SLOT(slotPaletteOrFontChanged()) );
+    connect(kapp, SIGNAL(kdisplayFontChanged()), this, SLOT(slotPaletteOrFontChanged()) );
+    
+    m_imageDir.setPath(KGlobal::dirs()->saveLocation("cache", "akregator/Media/"));
+    m_htmlFooter = "</body></html>";
+}
+
+ArticleViewer::~ArticleViewer()
+{
+    delete m_showSummaryVisitor;
+}
+
+void ArticleViewer::generateNormalModeCSS()
+{
+    const QColorGroup & cg = QApplication::palette().active();
+    
+    // from kmail::headerstyle.cpp
+    m_normalModeCSS = QString(
+            "@media screen, print {"
+            "body {\n"
+            "  font-family: \"%1\" ! important;\n"
+            "  font-size: %2 ! important;\n"
+            "  color: %3 ! important;\n"
+            "  background: %4 ! important;\n"
+            "}\n\n").arg(Settings::standardFont())
+            .arg(QString::number(pointsToPixel(Settings::mediumFontSize()))+"px")
+            .arg(cg.text().name())
+            .arg(cg.base().name());
+    m_normalModeCSS += QString(
+    "a {\n"
+    + QString("  color: %1 ! important;\n")
+    + QString(!Settings::underlineLinks() ? " text-decoration: none ! important;\n" : "")
+    +       "}\n\n"
+    +".headerbox {\n"
+    +"  background: %2 ! important;\n"
+    +"  color: %3 ! important;\n"
+    +"  border:1px solid #000;\n"
+    +"  margin-bottom: 10pt;\n"
+//    +"  width: 99%;\n"
+    +        "}\n\n")
+            .arg(cg.link().name())
+            .arg(cg.background().name())
+            .arg(cg.text().name());
+
+    m_normalModeCSS += QString(".headertitle a:link { color: %1  ! important; }\n"
+    ".headertitle a:visited { color: %2 ! important; }\n"
+    ".headertitle a:hover{ color: %3 ! important; }\n"
+            ".headertitle a:active { color: %4 ! important; }\n")
+            .arg(cg.highlightedText().name())
+            .arg(cg.highlightedText().name())
+            .arg(cg.highlightedText().name())
+            .arg(cg.highlightedText().name());
+    
+    m_normalModeCSS += QString(
+    ".headertitle {\n"
+    "  background: %1 ! important;\n"
+    "  padding:2px;\n"
+    "  color: %2 ! important;\n"
+    "  font-weight: bold;\n"
+    "}\n\n"
+    ".header {\n"
+    "  font-weight: bold;\n"
+    "  padding:2px;\n"
+    "  margin-right: 5px;\n"
+    "}\n\n"
+    ".headertext {\n"
+    "}\n\n"
+    ".headimage {\n"
+    "  float: right;\n"
+    "  margin-left: 5px;\n"
+            "}\n\n").arg(cg.highlight().name())
+            .arg(cg.highlightedText().name());
+    
+    m_normalModeCSS += QString(
+    "body { clear: none; }\n\n"
+    ".content {\n"
+    "  display: block;\n"
+    "  margin-bottom: 6px;\n"
+            "}\n\n"
+    // these rules make sure that there is no leading space between the header and the first of the text
+    ".content > P:first-child {\n margin-top: 1px; }\n"
+    ".content > DIV:first-child {\n margin-top: 1px; }\n"
+    ".content > BR:first-child {\n display: none;  }\n"
+    "iframe {display: none !important; }\n"
+    "frame {display: none !important; }\n"
+    "frameset {display: none !important; }\n"
+    "object {display: none !important; }\n"
+    "applet {display: none !important; }\n"
+    "}\n\n"); // @media screen, print    
+}
+
+void ArticleViewer::generateCombinedModeCSS()
+{
+    const QColorGroup & cg = QApplication::palette().active();
+    
+    // from kmail::headerstyle.cpp
+    m_combinedModeCSS = QString (
+//            "<style type=\"text/css\">\n"
+            "@media screen, print {"
+            "body {\n"
+            "  font-family: \"%1\" ! important;\n"
+            "  font-size: %2 ! important;\n"
+            "  color: %3 ! important;\n"
+            "  background: %4 ! important;\n"
+            "}\n\n").arg(Settings::standardFont())
+            .arg(QString::number(pointsToPixel(Settings::mediumFontSize()))+"px")
+            .arg(cg.text().name())
+            .arg(cg.base().name());
+    m_combinedModeCSS += (
+    "a {\n"
+    + QString("  color: %1 ! important;\n")
+    + QString(!Settings::underlineLinks() ? " text-decoration: none ! important;\n" : "")
+    +       "}\n\n"
+    +".headerbox {\n"
+    +"  background: %2 ! important;\n"
+    +"  color: %3 ! important;\n"
+    +"  border:1px solid #000;\n"
+    +"  margin-bottom: 10pt;\n"
+//    +"  width: 99%;\n"
+    +        "}\n\n")
+            .arg(cg.link().name())
+            .arg(cg.background().name())
+            .arg(cg.text().name());
+
+    m_combinedModeCSS += QString(".headertitle a:link { color: %1  ! important; }\n"
+    ".headertitle a:visited { color: %2 ! important; }\n"
+    ".headertitle a:hover{ color: %3 ! important; }\n"
+            ".headertitle a:active { color: %4 ! important; }\n")
+            .arg(cg.highlightedText().name())
+            .arg(cg.highlightedText().name())
+            .arg(cg.highlightedText().name())
+            .arg(cg.highlightedText().name());
+    m_combinedModeCSS += QString(
+    ".headertitle {\n"
+    "  background: %1 ! important;\n"
+    "  padding:2px;\n"
+    "  color: %2 ! important;\n"
+    "  font-weight: bold;\n"
+    "}\n\n"
+    ".header {\n"
+    "  font-weight: bold;\n"
+    "  padding:2px;\n"
+    "  margin-right: 5px;\n"
+    "}\n\n"
+    ".headertext {\n"
+    "}\n\n"
+    ".headimage {\n"
+    "  float: right;\n"
+    "  margin-left: 5px;\n"
+            "}\n\n").arg(cg.highlight().name())
+            .arg(cg.highlightedText().name());
+    
+    m_combinedModeCSS += QString(
+    "body { clear: none; }\n\n"
+    ".content {\n"
+    "  display: block;\n"
+    "  margin-bottom: 6px;\n"
+            "}\n\n"
+    // these rules make sure that there is no leading space between the header and the first of the text
+    ".content > P:first-child {\n margin-top: 1px; }\n"
+    ".content > DIV:first-child {\n margin-top: 1px; }\n"
+    ".content > BR:first-child {\n display: none;  }\n"
+    "iframe {display: none !important; }\n"
+    "frame {display: none !important; }\n"
+    "frameset {display: none !important; }\n"
+    "object {display: none !important; }\n"
+    "applet {display: none !important; }\n"
+    "}\n\n"); // @media screen, print
+}
+
+void ArticleViewer::reload()
+{
+    beginWriting();
+    write(m_currentText);
+    endWriting();
+}
+
+bool ArticleViewer::openURL(const KURL& url)
+{
+    if (!m_article.isNull() && m_article.feed()->loadLinkedWebsite())
+    {
+        return Viewer::openURL(url);
+    }
+    else
+    {
+        reload();
+        return true;
+    }
+}
+
+void ArticleViewer::displayAboutPage()
+{
+    QString location = locate("data", "akregator/about/main.html");
+    QString content = KPIM::kFileToString(location);
+    content = content.arg( locate( "data", "libkdepim/about/kde_infopage.css" ) );
+    if ( kapp->reverseLayout() )
+        content = content.arg( "@import \"%1\";" ).arg( locate( "data", "libkdepim/about/kde_infopage_rtl.css" ) );
+    else
+        content = content.arg( "" );
+
+    begin(KURL( location ));
+    QString info =
+            i18n("%1: Akregator version; %2: help:// URL; %3: homepage URL; "
+            "--- end of comment ---",
+    "<h2 style='margin-top: 0px;'>Welcome to Akregator %1</h2>"
+            "<p>Akregator is an RSS feed aggregator for the K Desktop Environment. "
+            "Feed aggregators provide a convenient way to browse different kinds of "
+            "content, including news, blogs, and other content from online sites. "
+            "Instead of checking all your favorite web sites manually for updates, "
+            "Akregator collects the content for you.</p>"
+            "<p>For more information about using Akregator, check the "
+            "<a href=\"%3\">Akregator website</a>. If you do not want to see this page anymore, <a href=\"config:/disable_introduction\">click here</a>.</p>"
+            "<p>We hope that you will enjoy Akregator.</p>\n"
+            "<p>Thank you,</p>\n"
+            "<p style='margin-bottom: 0px'>&nbsp; &nbsp; The Akregator Team</p>\n")
+            .arg(AKREGATOR_VERSION) // Akregator version
+            .arg("http://akregator.kde.org/"); // Akregator homepage URL
+
+    QString fontSize = QString::number( pointsToPixel( Settings::mediumFontSize() ));
+    QString appTitle = i18n("Akregator");
+    QString catchPhrase = ""; //not enough space for a catch phrase at default window size i18n("Part of the Kontact Suite");
+    QString quickDescription = i18n("An RSS feed reader for the K Desktop Environment.");
+    write(content.arg(fontSize).arg(appTitle).arg(catchPhrase).arg(quickDescription).arg(info));
+    end();
+}
+
+QString ArticleViewer::formatArticleNormalMode(Feed* feed, const Article& article)
+{
+    QString text;
+    text = QString("<div class=\"headerbox\" dir=\"%1\">\n").arg(QApplication::reverseLayout() ? "rtl" : "ltr");
+
+    if (!article.title().isEmpty())
+    {
+        text += QString("<div class=\"headertitle\" dir=\"%1\">\n").arg(directionOf(Utils::stripTags(article.title())));
+        if (article.link().isValid())
+            text += "<a href=\""+article.link().url()+"\">";
+        text += article.title().replace("<", "&lt;").replace(">", "&gt;"); // TODO: better leave things escaped in the parser
+        if (article.link().isValid())
+            text += "</a>";
+        text += "</div>\n";
+    }
+    if (article.pubDate().isValid())
+    {
+        text += QString("<span class=\"header\" dir=\"%1\">").arg(directionOf(i18n("Date")));
+        text += QString ("%1:").arg(i18n("Date"));
+        text += "</span><span class=\"headertext\">";
+        text += KGlobal::locale()->formatDateTime(article.pubDate(), false, false)+"</span>\n"; // TODO: might need RTL?
+    }
+    QString author = article.author();
+    if (!author.isEmpty())
+    {
+        text += QString("<br/><span class=\"header\" dir=\"%1\">").arg(directionOf(i18n("Author")));
+        text += QString ("%1:").arg(i18n("Author"));
+        text += "</span><span class=\"headertext\">";
+        text += author+"</span>\n"; // TODO: might need RTL?
+    }
+    text += "</div>\n"; // end headerbox
+
+    if (feed && !feed->image().isNull())
+    {
+        QString file = Utils::fileNameForUrl(feed->xmlUrl());
+        KURL u(m_imageDir);
+        u.setFileName(file);
+        text += QString("<a href=\"%1\"><img class=\"headimage\" src=\"%2.png\"></a>\n").arg(feed->htmlUrl()).arg(u.url());
+    }
+
+    
+
+    if (!article.description().isEmpty())
+    {
+        text += QString("<div dir=\"%1\">").arg(directionOf(Utils::stripTags(article.description())) );
+        text += "<span class=\"content\">"+article.description()+"</span>";
+        text += "</div>";
+    }
+    
+    text += "<div class=\"body\">";
+    
+    if (article.commentsLink().isValid())
+    {
+        text += "<a class=\"contentlink\" href=\"";
+        text += article.commentsLink().url();
+        text += "\">" + i18n( "Comments");
+        if (article.comments())
+        {
+            text += " ("+ QString::number(article.comments()) +")";
+        }
+        text += "</a>";
+    }
+
+    if (article.link().isValid() || (article.guidIsPermaLink() && KURL(article.guid()).isValid()))
+    {
+        text += "<p><a class=\"contentlink\" href=\"";
+        // in case link isn't valid, fall back to the guid permaLink.
+        if (article.link().isValid())
+        {
+            text += article.link().url();
+        }
+        else
+         {
+            text += article.guid();
+        }
+        text += "\">" + i18n( "Complete Story" ) + "</a></p>";
+    }
+    text += "</div>";
+    
+    if (!article.enclosure().isNull())
+    {
+        //QString url = article.enclosure().url();
+        //QString type = article.enclosure().type();
+        //int length = article.enclosure().length();
+        //QString lengthStr = KIO::convertSize(length);
+
+        //text += QString("<hr><div><a href=\"%1\">%2</a> (%3, %4)</div>").arg(url).arg(url).arg(lengthStr).arg(type);
+    }
+    //kdDebug() << text << endl;
+    return text;
+
+}
+
+QString ArticleViewer::formatArticleCombinedMode(Feed* feed, const Article& article)
+{
+    QString text;
+    text = QString("<div class=\"headerbox\" dir=\"%1\">\n").arg(QApplication::reverseLayout() ? "rtl" : "ltr");
+
+    KURL link = article.link();
+    
+    if (!article.title().isEmpty())
+    {
+        text += QString("<div class=\"headertitle\" dir=\"%1\">\n").arg(directionOf(Utils::stripTags(article.title())));
+        if (link.isValid())
+            text += "<a href=\""+link.url()+"\">";
+        text += article.title().replace("<", "&lt;").replace(">", "&gt;"); // TODO: better leave things escaped in the parser
+        if (link.isValid())
+            text += "</a>";
+        text += "</div>\n";
+    }
+    if (article.pubDate().isValid())
+    {
+        text += QString("<span class=\"header\" dir=\"%1\">").arg(directionOf(i18n("Date")));
+        text += QString ("%1:").arg(i18n("Date"));
+        text += "</span><span class=\"headertext\">";
+        text += KGlobal::locale()->formatDateTime(article.pubDate(), false, false)+"</span>\n"; // TODO: might need RTL?
+    }
+    
+    QString author = article.author();
+    if (!author.isEmpty())
+    {
+        text += QString("<br/><span class=\"header\" dir=\"%1\">").arg(directionOf(i18n("Author")));
+        text += QString ("%1:").arg(i18n("Author"));
+        text += "</span><span class=\"headertext\">";
+        text += author+"</span>\n"; // TODO: might need RTL?
+    }
+    
+    text += "</div>\n"; // end headerbox
+
+    if (feed && !feed->image().isNull())
+    {
+        QString file = Utils::fileNameForUrl(feed->xmlUrl());
+        KURL u(m_imageDir);
+        u.setFileName(file);
+        text += QString("<a href=\"%1\"><img class=\"headimage\" src=\"%2.png\"></a>\n").arg(feed->htmlUrl()).arg(u.url());
+    }
+
+    
+
+    if (!article.description().isEmpty())
+    {
+        text += QString("<div dir=\"%1\">").arg(directionOf(Utils::stripTags(article.description())) );
+        text += "<span class=\"content\">"+article.description()+"</span>";
+        text += "</div>";
+    }
+    
+    text += "<div class=\"body\">";
+    
+    if (article.commentsLink().isValid())
+    {
+        text += "<a class=\"contentlink\" href=\"";
+        text += article.commentsLink().url();
+        text += "\">" + i18n( "Comments");
+        if (article.comments())
+        {
+            text += " ("+ QString::number(article.comments()) +")";
+        }
+        text += "</a>";
+    }
+
+    if (link.isValid() || (article.guidIsPermaLink() && KURL(article.guid()).isValid()))
+    {
+        text += "<p><a class=\"contentlink\" href=\"";
+        // in case link isn't valid, fall back to the guid permaLink.
+        if (link.isValid())
+        {
+            text += link.url();
+        }
+        else
+         {
+            text += article.guid();
+        }
+        text += "\">" + i18n( "Complete Story" ) + "</a></p>";
+    }
+    text += "</div>";
+    //kdDebug() << text << endl;
+    return text;
+
+}
+
+void ArticleViewer::renderContent(const QString& text)
+{
+    closeURL();
+    m_currentText = text;
+    beginWriting();
+    //kdDebug() << text << endl;
+    write(text);
+    endWriting();
+}
+
+void ArticleViewer::beginWriting()
+{
+    QString head = QString("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\n <html><head><title>.</title></head>");
+    view()->setContentsPos(0,0);
+    begin(m_link);
+    setUserStyleSheet(m_viewMode == CombinedView ? m_combinedModeCSS : m_normalModeCSS);
+    write(head);
+}
+
+void ArticleViewer::endWriting()
+{
+    write(m_htmlFooter);
+    //kdDebug() << m_htmlFooter << endl;
+    end();
+}
+
+void ArticleViewer::slotShowSummary(TreeNode* node)
+{
+    m_viewMode = SummaryView;
+
+    if (!node)
+    {
+        slotClear();
+        return;
+    }
+
+    if (node != m_node)
+    {
+        disconnectFromNode(m_node);
+        connectToNode(node);
+        m_node = node;
+    }
+    m_showSummaryVisitor->visit(node);
+}
+
+
+void ArticleViewer::slotShowArticle(const Article& article)
+{
+    m_viewMode = NormalView;
+    disconnectFromNode(m_node);
+    m_article = article;
+    m_node = 0;
+    m_link = article.link();
+    if (article.feed()->loadLinkedWebsite())
+        openURL(article.link());
+    else
+        renderContent( formatArticleNormalMode(article.feed(), article) );
+}
+
+void ArticleViewer::slotSetFilter(const Akregator::Filters::ArticleMatcher& textFilter, const Akregator::Filters::ArticleMatcher& statusFilter)
+{
+    if (m_statusFilter == statusFilter && m_textFilter == textFilter)
+        return;
+
+    m_textFilter = textFilter;
+    m_statusFilter = statusFilter;
+
+    slotUpdateCombinedView();
+}
+
+void ArticleViewer::slotUpdateCombinedView()
+{
+    if (m_viewMode != CombinedView)
+        return;
+
+    if (!m_node)
+        return slotClear();
+
+    QValueList<Article> articles = m_node->articles();
+    qHeapSort(articles);
+    QValueList<Article>::ConstIterator end = articles.end();
+    QValueList<Article>::ConstIterator it = articles.begin();
+
+    QString text;
+
+    int num = 0;
+    QTime spent;
+    spent.start();
+    
+    for ( ; it != end; ++it)
+    {
+        if ( !(*it).isDeleted() && m_textFilter.matches(*it) && m_statusFilter.matches(*it) )
+        {
+            text += "<p><div class=\"article\">"+formatArticleCombinedMode(0, *it)+"</div><p>";
+            ++num;
+        }
+    }
+    //kdDebug() << "Combined view rendering: (" << num << " articles):\n" << "generating HTML: " << spent.elapsed() << "ms " << endl;
+    renderContent(text);
+    //kdDebug() << "HTML rendering: " << spent.elapsed() << "ms" << endl;
+
+
+}
+
+void ArticleViewer::slotArticlesUpdated(TreeNode* /*node*/, const QValueList<Article>& /*list*/)
+{
+    if (m_viewMode == CombinedView)
+        slotUpdateCombinedView();
+}
+
+void ArticleViewer::slotArticlesAdded(TreeNode* /*node*/, const QValueList<Article>& /*list*/)
+{
+}
+
+void ArticleViewer::slotArticlesRemoved(TreeNode* /*node*/, const QValueList<Article>& /*list*/)
+{
+}
+
+/* testingtesting :)
+void ArticleViewer::slotPopupMenu(KXMLGUIClient*, const QPoint& p, const KURL& kurl, const KParts::URLArgs&, KParts::BrowserExtension::PopupFlags, mode_t)
+{
+    kdDebug() << m_link << endl;
+    kdDebug() << kurl.url() << endl;
+}*/
+
+
+void ArticleViewer::slotClear()
+{
+    disconnectFromNode(m_node);
+    m_node = 0;
+    m_article = Article();
+
+    renderContent(QString());
+}
+
+void ArticleViewer::slotShowNode(TreeNode* node)
+{
+    m_viewMode = CombinedView;
+
+    if (node != m_node)
+        disconnectFromNode(m_node);
+
+    connectToNode(node);
+    
+    m_article = Article();
+    m_node = node;
+
+    if (node && !node->articles().isEmpty())
+        m_link = node->articles().first().link();
+    else
+        m_link = KURL();
+
+    slotUpdateCombinedView();
+}
+
+void ArticleViewer::keyPressEvent(QKeyEvent* e)
+{
+    e->ignore();
+}
+
+void ArticleViewer::urlSelected(const QString &url, int button, int state, const QString& _target, KParts::URLArgs args)
+{
+    if(url == "config:/disable_introduction") {
+        if(KMessageBox::questionYesNo( widget(), i18n("Are you sure you want to disable this introduction page?"), i18n("Disable Introduction Page"), i18n("Disable"), i18n("Keep Enabled") ) == KMessageBox::Yes) {
+            KConfig *conf = Settings::self()->config();
+            conf->setGroup("General");
+            conf->writeEntry("Disable Introduction", "true");
+        }
+    }
+    else
+        Viewer::urlSelected(url, button, state, _target, args);
+}
+
+void ArticleViewer::slotPaletteOrFontChanged()
+{
+    generateNormalModeCSS();
+    generateCombinedModeCSS();
+    reload();
+}
+
+void ArticleViewer::connectToNode(TreeNode* node)
+{
+    if (node)
+    {
+        if (m_viewMode == CombinedView)
+        {
+//            connect( node, SIGNAL(signalChanged(TreeNode*)), this, SLOT(slotUpdateCombinedView() ) );
+            connect( node, SIGNAL(signalArticlesAdded(TreeNode*, const QValueList<Article>&)), this, SLOT(slotArticlesAdded(TreeNode*, const QValueList<Article>&)));
+            connect( node, SIGNAL(signalArticlesRemoved(TreeNode*, const QValueList<Article>&)), this, SLOT(slotArticlesRemoved(TreeNode*, const QValueList<Article>&)));
+            connect( node, SIGNAL(signalArticlesUpdated(TreeNode*, const QValueList<Article>&)), this, SLOT(slotArticlesUpdated(TreeNode*, const QValueList<Article>&)));
+        }
+        if (m_viewMode == SummaryView)
+            connect( node, SIGNAL(signalChanged(TreeNode*)), this, SLOT(slotShowSummary(TreeNode*) ) );
+
+        connect( node, SIGNAL(signalDestroyed(TreeNode*)), this, SLOT(slotClear() ) );
+    }   
+}
+
+void ArticleViewer::disconnectFromNode(TreeNode* node)
+{
+    if (node)
+    {
+//        disconnect( node, SIGNAL(signalChanged(TreeNode*)), this, SLOT(slotUpdateCombinedView() ) );
+        disconnect( node, SIGNAL(signalDestroyed(TreeNode*)), this, SLOT(slotClear() ) );
+        disconnect( node, SIGNAL(signalChanged(TreeNode*)), this, SLOT(slotShowSummary(TreeNode*) ) );
+        disconnect( node, SIGNAL(signalArticlesAdded(TreeNode*, const QValueList<Article>&)), this, SLOT(slotArticlesAdded(TreeNode*, const QValueList<Article>&)));
+        disconnect( node, SIGNAL(signalArticlesRemoved(TreeNode*, const QValueList<Article>&)), this, SLOT(slotArticlesRemoved(TreeNode*, const QValueList<Article>&)));
+        disconnect( node, SIGNAL(signalArticlesUpdated(TreeNode*, const QValueList<Article>&)), this, SLOT(slotArticlesUpdated(TreeNode*, const QValueList<Article>&)));
+
+    }
+}
+
+}
+#include "articleviewer.moc"
+
-- 
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