1 files changed, 268 insertions, 0 deletions
diff --git a/akregator/src/feedlist.cpp b/akregator/src/feedlist.cpp
new file mode 100644
index 000000000..814f82e1a
--- /dev/null
+++ b/akregator/src/feedlist.cpp
@@ -0,0 +1,268 @@
+/*
+    This file is part of Akregator.
+
+    Copyright (C) 2004 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 "feedlist.h"
+
+#include <qdatetime.h>
+#include <qdom.h>
+#include <qmap.h>
+#include <qvaluelist.h>
+
+#include <kdebug.h>
+#include <klocale.h>
+
+#include "article.h"
+#include "feed.h"
+#include "folder.h"
+#include "treenode.h"
+#include "treenodevisitor.h"
+
+namespace Akregator {
+
+class FeedList::FeedListPrivate
+{
+    public:
+
+        QMap<QString, QValueList<Feed*> > urlMap;
+        AddNodeVisitor* addNodeVisitor;
+        RemoveNodeVisitor* removeNodeVisitor;
+};
+
+class FeedList::AddNodeVisitor : public TreeNodeVisitor
+{
+    public:
+        AddNodeVisitor(FeedList* list) : m_list(list) {}
+
+
+        virtual bool visitFeed(Feed* node)
+        {
+            m_list->idMap()->insert(node->id(), node);
+            m_list->flatList()->append(node);
+            return true;
+        }
+
+    private:
+        FeedList* m_list;
+};
+
+class FeedList::RemoveNodeVisitor : public TreeNodeVisitor
+{
+    public:
+        RemoveNodeVisitor(FeedList* list) : m_list(list) {}
+
+        virtual bool visitFeed(Feed* node)
+        {
+            m_list->d->urlMap[node->xmlUrl()].remove(node);
+            return true;
+        }
+
+    private:
+        FeedList* m_list;
+};
+
+FeedList::FeedList(QObject *parent, const char *name)
+    : NodeList(parent, name), d(new FeedListPrivate)
+{
+    d->addNodeVisitor = new AddNodeVisitor(this);
+    d->removeNodeVisitor = new RemoveNodeVisitor(this);
+
+    Folder* rootNode = new Folder(i18n("All Feeds"));
+    rootNode->setId(1);
+    setRootNode(rootNode);
+    addNode(rootNode, true);
+}
+
+void FeedList::addNode(TreeNode* node, bool preserveID)
+{
+    NodeList::addNode(node, preserveID);
+    d->addNodeVisitor->visit(node);
+}
+
+void FeedList::removeNode(TreeNode* node)
+{
+   NodeList::removeNode(node);
+   d->removeNodeVisitor->visit(node);
+}
+
+void FeedList::parseChildNodes(QDomNode &node, Folder* parent)
+{
+    QDomElement e = node.toElement(); // try to convert the node to an element.
+
+    if( !e.isNull() )
+    {
+        QString title = e.hasAttribute("text") ? e.attribute("text") : e.attribute("title");
+
+        if (e.hasAttribute("xmlUrl") || e.hasAttribute("xmlurl") || e.hasAttribute("xmlURL") )
+        {
+            Feed* feed = Feed::fromOPML(e);
+            if (feed)
+            {
+                if (!d->urlMap[feed->xmlUrl()].contains(feed))
+                    d->urlMap[feed->xmlUrl()].append(feed);
+                parent->appendChild(feed);
+            }
+        }
+        else
+        {
+            Folder* fg = Folder::fromOPML(e);
+            parent->appendChild(fg);
+
+            if (e.hasChildNodes())
+            {
+                QDomNode child = e.firstChild();
+                while(!child.isNull())
+                {
+                    parseChildNodes(child, fg);
+                    child = child.nextSibling();
+                }
+            }
+        }
+    }
+}
+
+bool FeedList::readFromXML(const QDomDocument& doc)
+{
+    QDomElement root = doc.documentElement();
+
+    kdDebug() << "loading OPML feed " << root.tagName().lower() << endl;
+
+    kdDebug() << "measuring startup time: START" << endl;
+    QTime spent;
+    spent.start();
+
+    if (root.tagName().lower() != "opml")
+    {
+        return false;
+    }
+    QDomNode bodyNode = root.firstChild();
+
+    while (!bodyNode.isNull() && bodyNode.toElement().tagName().lower() != "body")
+        bodyNode = bodyNode.nextSibling();
+
+
+    if (bodyNode.isNull())
+    {
+        kdDebug() << "Failed to acquire body node, markup broken?" << endl;
+        return false;
+    }
+
+    QDomElement body = bodyNode.toElement();
+
+    QDomNode i = body.firstChild();
+
+    while( !i.isNull() )
+    {
+        parseChildNodes(i, rootNode());
+        i = i.nextSibling();
+    }
+
+    for (TreeNode* i = rootNode()->firstChild(); i && i != rootNode(); i = i->next() )
+        if (i->id() == 0)
+    {
+            uint id = generateID();
+            i->setId(id);
+            idMap()->insert(id, i);
+    }
+
+    kdDebug() << "measuring startup time: STOP, " << spent.elapsed() << "ms" << endl;
+    kdDebug() << "Number of articles loaded: " << rootNode()->totalCount() << endl;
+    return true;
+}
+
+FeedList::~FeedList()
+{
+    emit signalDestroyed(this);
+    setRootNode(0);
+    delete d->addNodeVisitor;
+    delete d->removeNodeVisitor;
+    delete d;
+    d = 0;
+}
+
+Feed* FeedList::findByURL(const QString& feedURL) const
+{
+    if (d->urlMap[feedURL].isEmpty())
+        return 0;
+    else
+        return *(d->urlMap[feedURL].begin());
+}
+
+Article FeedList::findArticle(const QString& feedURL, const QString& guid) const
+{
+    Feed* feed = findByURL(feedURL);
+
+    return feed ? feed->findArticle(guid) : Article();
+}
+
+void FeedList::append(FeedList* list, Folder* parent, TreeNode* after)
+{
+    if ( list == this )
+        return;
+
+    if ( !flatList()->contains(parent) )
+        parent = rootNode();
+
+    QValueList<TreeNode*> children = list->rootNode()->children();
+
+    QValueList<TreeNode*>::ConstIterator end(  children.end() );
+    for (QValueList<TreeNode*>::ConstIterator it = children.begin(); it != end; ++it)
+    {
+        list->rootNode()->removeChild(*it);
+        parent->insertChild(*it, after);
+        after = *it;
+    }
+}
+
+QDomDocument FeedList::toXML() const
+{
+    QDomDocument doc;
+    doc.appendChild( doc.createProcessingInstruction( "xml", "version=\"1.0\" encoding=\"UTF-8\"" ) );
+
+    QDomElement root = doc.createElement( "opml" );
+    root.setAttribute( "version", "1.0" );
+    doc.appendChild( root );
+
+    QDomElement head = doc.createElement( "head" );
+    root.appendChild( head );
+
+    QDomElement ti = doc.createElement( "text" );
+    head.appendChild( ti );
+
+    QDomText t = doc.createTextNode( title() );
+    ti.appendChild( t );
+
+    QDomElement body = doc.createElement( "body" );
+    root.appendChild( body );
+
+    QValueList<TreeNode*> children = rootNode()->children();
+
+    QValueList<TreeNode*>::ConstIterator end(  children.end() );
+
+    for (QValueList<TreeNode*>::ConstIterator it = children.begin(); it != end; ++it)
+        body.appendChild( (*it)->toOPML(body, doc) );
+
+    return doc;
+}
+
+} // namespace Akregator
+#include "feedlist.moc"