File indexing completed on 2024-04-28 16:07:51

 /**
   This file belong to the KMPlayer project, a movie player plugin for Konqueror
   Copyright (C) 2009  Koos Vriezen <koos.vriezen@gmail.com>
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
 
   This library 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
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 **/
 
 #include <qfile.h>
 #include <qurl.h>
 #include <qtextstream.h>
 #include <qbytearray.h>
 #include <qinputdialog.h>
 #include <QStandardPaths>
 
 #include <kfiledialog.h>
 #include <ksharedconfig.h>
 #include <klocalizedstring.h>
 #include <kdebug.h>
 
 #include "kmplayer_lists.h"
 #include "kmplayer.h"
 #include "mediaobject.h"
 
 
 KDE_NO_EXPORT void ListsSource::play (KMPlayer::Mrl *mrl) {
     if (m_player->source () == this)
         Source::play (mrl);
     else if (mrl)
         mrl->activate ();
 }
 
 KDE_NO_EXPORT void ListsSource::activate () {
     activated = true;
     play (m_current ? m_current->mrl () : NULL);
 }
 
 QString ListsSource::prettyName ()
 {
     return ((KMPlayer::PlaylistRole *)m_document->role (KMPlayer::RolePlaylist))->caption ();
 }
 
 KDE_NO_CDTOR_EXPORT FileDocument::FileDocument (short i, const QString &s, KMPlayer::Source *src)
  : KMPlayer::SourceDocument (src, s), load_tree_version ((unsigned int)-1) {
     id = i;
 }
 
 KDE_NO_EXPORT KMPlayer::Node *FileDocument::childFromTag(const QString &tag) {
     if (tag == QString::fromLatin1 (nodeName ()))
         return this;
     return 0L;
 }
 
 void FileDocument::readFromFile (const QString & fn) {
     QFile file (fn);
     kDebug () << "readFromFile " << fn;
     if (QFileInfo (file).exists ()) {
         file.open (QIODevice::ReadOnly);
         QTextStream inxml (&file);
         inxml.setCodec("UTF-8");
         KMPlayer::readXML (this, inxml, QString (), false);
         normalize ();
     }
     load_tree_version = m_tree_version;
 }
 
 void FileDocument::writeToFile (const QString & fn) {
     QFile file (fn);
     kDebug () << "writeToFile " << fn;
     file.open (QIODevice::WriteOnly | QIODevice::Truncate);
     file.write (outerXML ().toUtf8 ());
     load_tree_version = m_tree_version;
 }
 
 void FileDocument::sync (const QString &fn)
 {
     if (resolved && load_tree_version != m_tree_version)
         writeToFile (fn);
 }
 
 KDE_NO_CDTOR_EXPORT Recents::Recents (KMPlayerApp *a)
     : FileDocument (id_node_recent_document, "recents://"),
       app(a) {
     title = i18n ("Most Recent");
     bookmarkable = false;
 }
 
 KDE_NO_EXPORT void Recents::activate () {
     if (!resolved)
         defer ();
 }
 
 KDE_NO_EXPORT void Recents::defer () {
     if (!resolved) {
         resolved = true;
         readFromFile(QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation) + "/kmplayer/recent.xml");
     }
 }
 
 KDE_NO_EXPORT KMPlayer::Node *Recents::childFromTag (const QString & tag) {
     // kDebug () << nodeName () << " childFromTag " << tag;
     if (tag == QString::fromLatin1 ("item"))
         return new Recent (m_doc, app);
     else if (tag == QString::fromLatin1 ("group"))
         return new Group (m_doc, app);
     return FileDocument::childFromTag (tag);
 }
 
 KDE_NO_EXPORT void Recents::message (KMPlayer::MessageType msg, void *data) {
     if (KMPlayer::MsgChildFinished == msg)
         finish ();
     else
         FileDocument::message (msg, data);
 }
 
 KDE_NO_CDTOR_EXPORT
 Recent::Recent (KMPlayer::NodePtr & doc, KMPlayerApp * a, const QString &url)
   : KMPlayer::Mrl (doc, id_node_recent_node), app (a) {
     src = url;
     setAttribute (KMPlayer::Ids::attr_url, url);
 }
 
 KDE_NO_EXPORT void Recent::closed () {
     src = getAttribute (KMPlayer::Ids::attr_url);
     Mrl::closed ();
 }
 
 KDE_NO_EXPORT void Recent::activate () {
     app->openDocumentFile (KUrl (src));
 }
 
 KDE_NO_CDTOR_EXPORT
 Group::Group (KMPlayer::NodePtr & doc, KMPlayerApp * a, const QString & pn)
   : KMPlayer::Element (doc, KMPlayer::id_node_group_node), app (a) {
     title = pn;
     if (!pn.isEmpty ())
         setAttribute (KMPlayer::Ids::attr_title, pn);
 }
 
 KDE_NO_EXPORT KMPlayer::Node *Group::childFromTag (const QString & tag) {
     if (tag == QString::fromLatin1 ("item"))
         return new Recent (m_doc, app);
     else if (tag == QString::fromLatin1 ("group"))
         return new Group (m_doc, app);
     return 0L;
 }
 
 KDE_NO_EXPORT void Group::closed () {
     title = getAttribute (KMPlayer::Ids::attr_title);
     Element::closed ();
 }
 
 void *Group::role (KMPlayer::RoleType msg, void *content)
 {
     if (KMPlayer::RolePlaylist == msg)
         return (KMPlayer::PlaylistRole *) this ;
     return Element::role (msg, content);
 }
 
 KDE_NO_EXPORT void Playlist::defer () {
     if (playmode) {
         KMPlayer::Document::defer ();
         // Hack: Node::undefer will restart first item when state=init
         if (firstChild() && KMPlayer::Node::state_init == firstChild()->state)
             firstChild()->state = KMPlayer::Node::state_activated;
     } else if (!resolved) {
         resolved = true;
         readFromFile(QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation) + "/kmplayer/playlist.xml");
     }
 }
 
 KDE_NO_EXPORT void Playlist::activate () {
     if (playmode)
         KMPlayer::Document::activate ();
     else if (!resolved)
         defer ();
 }
 
 KDE_NO_CDTOR_EXPORT Playlist::Playlist (KMPlayerApp *a, KMPlayer::Source *s, bool plmode)
     : FileDocument (KMPlayer::id_node_playlist_document, "Playlist://", s),
       app(a),
       playmode (plmode) {
     title = i18n ("Persistent Playlists");
     bookmarkable = false;
 }
 
 KDE_NO_EXPORT KMPlayer::Node *Playlist::childFromTag (const QString & tag) {
     // kDebug () << nodeName () << " childFromTag " << tag;
     QByteArray ba = tag.toUtf8 ();
     const char *name = ba.constData ();
     if (!strcmp (name, "item"))
         return new PlaylistItem (m_doc, app, playmode);
     else if (!strcmp (name, "group"))
         return new PlaylistGroup (m_doc, app, playmode);
     else if (!strcmp (name, "object"))
         return new HtmlObject (m_doc, app, playmode);
     return FileDocument::childFromTag (tag);
 }
 
 KDE_NO_EXPORT void Playlist::message (KMPlayer::MessageType msg, void *data) {
     if (KMPlayer::MsgChildFinished == msg && !playmode)
         finish ();
     else
         FileDocument::message (msg, data);
 }
 
 KDE_NO_CDTOR_EXPORT
 PlaylistItemBase::PlaylistItemBase (KMPlayer::NodePtr &d, short i, KMPlayerApp *a, bool pm)
     : KMPlayer::Mrl (d, i), app (a), playmode (pm) {
     editable = !pm;
 }
 
 KDE_NO_EXPORT void PlaylistItemBase::activate () {
     if (playmode) {
         Mrl::activate ();
     } else {
         ListsSource * source = static_cast <ListsSource *> (app->player ()->sources () ["listssource"]);
         Playlist *pl = new Playlist (app, source, true);
         KMPlayer::NodePtr n = pl;
         pl->src.clear ();
         QString data;
         QString pn;
         if (parentNode ()->id == KMPlayer::id_node_group_node) {
             data = QString ("<playlist>") +
                 parentNode ()->innerXML () +
                 QString ("</playlist>");
             pn = ((KMPlayer::PlaylistRole *)parentNode ()->role (KMPlayer::RolePlaylist))->caption ();
         } else {
             data = outerXML ();
             pn = title.isEmpty () ? src : title;
         }
         pl->setCaption (pn);
         //kDebug () << "cloning to " << data;
         QTextStream inxml (&data, QIODevice::ReadOnly);
         KMPlayer::readXML (pl, inxml, QString (), false);
         pl->normalize ();
         KMPlayer::Node *cur = pl->firstChild ();
         pl->mrl ()->resolved = !!cur;
         if (parentNode ()->id == KMPlayer::id_node_group_node && cur) {
             KMPlayer::Node *sister = parentNode ()->firstChild ();
             while (sister && cur && sister != this) {
                 sister = sister->nextSibling ();
                 cur = cur->nextSibling ();
             }
         }
         bool reset_only = source == app->player ()->source ();
         if (reset_only)
             app->player ()->stop ();
         source->setDocument (pl, cur);
         if (reset_only) {
             source->activate ();
             app->setCaption (pn);
         } else
             app->player ()->setSource (source);
     }
 }
 
 void PlaylistItemBase::closed () {
     title = getAttribute (KMPlayer::Ids::attr_title);
     Mrl::closed ();
 }
 
 KDE_NO_CDTOR_EXPORT
 PlaylistItem::PlaylistItem (KMPlayer::NodePtr & doc, KMPlayerApp *a, bool pm, const QString &url)
  : PlaylistItemBase (doc, KMPlayer::id_node_playlist_item, a, pm) {
     src = url;
     setAttribute (KMPlayer::Ids::attr_url, url);
 }
 
 KDE_NO_EXPORT void PlaylistItem::closed () {
     src = getAttribute (KMPlayer::Ids::attr_url);
     PlaylistItemBase::closed ();
 }
 
 KDE_NO_EXPORT void PlaylistItem::begin () {
     if (playmode && firstChild ())
         firstChild ()->activate ();
     else
         Mrl::begin ();
 }
 
 KDE_NO_EXPORT void PlaylistItem::setNodeName (const QString & s) {
     bool uri = s.startsWith (QChar ('/'));
     if (!uri) {
         int p = s.indexOf ("://");
         uri = p > 0 && p < 10;
     }
     if (uri) {
         if (title.isEmpty () || title == src)
             title = s;
         src = s;
         setAttribute (KMPlayer::Ids::attr_url, s);
     } else {
         title = s;
         setAttribute (KMPlayer::Ids::attr_title, s);
     }
 }
 
 KDE_NO_CDTOR_EXPORT
 PlaylistGroup::PlaylistGroup (KMPlayer::NodePtr &doc, KMPlayerApp *a, const QString &pn)
   : KMPlayer::Element (doc, KMPlayer::id_node_group_node), app (a), playmode (false) {
     title = pn;
     editable = true;
     if (!pn.isEmpty ())
         setAttribute (KMPlayer::Ids::attr_title, pn);
 }
 
 KDE_NO_CDTOR_EXPORT
 PlaylistGroup::PlaylistGroup (KMPlayer::NodePtr &doc, KMPlayerApp *a, bool lm)
   : KMPlayer::Element (doc, KMPlayer::id_node_group_node), app (a), playmode (lm) {
     editable = !lm;
 }
 
 KDE_NO_EXPORT KMPlayer::Node *PlaylistGroup::childFromTag (const QString &tag) {
     QByteArray ba = tag.toUtf8 ();
     const char *name = ba.constData ();
     if (!strcmp (name, "item"))
         return new PlaylistItem (m_doc, app, playmode);
     else if (!strcmp (name, "group"))
         return new PlaylistGroup (m_doc, app, playmode);
     else if (!strcmp (name, "object"))
         return new HtmlObject (m_doc, app, playmode);
     return 0L;
 }
 
 KDE_NO_EXPORT void PlaylistGroup::closed () {
     title = getAttribute (KMPlayer::Ids::attr_title);
     Element::closed ();
 }
 
 KDE_NO_EXPORT void PlaylistGroup::setNodeName (const QString &t) {
     title = t;
     setAttribute (KMPlayer::Ids::attr_title, t);
 }
 
 void *PlaylistGroup::role (KMPlayer::RoleType msg, void *content)
 {
     if (KMPlayer::RolePlaylist == msg)
         return (KMPlayer::PlaylistRole *) this ;
     return Element::role (msg, content);
 }
 
 KDE_NO_CDTOR_EXPORT
 HtmlObject::HtmlObject (KMPlayer::NodePtr &doc, KMPlayerApp *a, bool pm)
   : PlaylistItemBase (doc, KMPlayer::id_node_html_object, a, pm) {}
 
 KDE_NO_EXPORT void HtmlObject::activate () {
     if (playmode)
         KMPlayer::Mrl::activate ();
     else
         PlaylistItemBase::activate ();
 }
 
 KDE_NO_EXPORT void HtmlObject::closed () {
     for (Node *n = firstChild (); n; n = n->nextSibling ()) {
         if (n->id == KMPlayer::id_node_param) {
             KMPlayer::Element *e = static_cast <KMPlayer::Element *> (n);
             QString name = e->getAttribute (KMPlayer::Ids::attr_name);
             if (name == "type")
                 mimetype = e->getAttribute (KMPlayer::Ids::attr_value);
             else if (name == "movie")
                 src = e->getAttribute (KMPlayer::Ids::attr_value);
         } else if (n->id == KMPlayer::id_node_html_embed) {
             KMPlayer::Element *e = static_cast <KMPlayer::Element *> (n);
             QString type = e->getAttribute (KMPlayer::Ids::attr_type);
             if (!type.isEmpty ())
                 mimetype = type;
             QString asrc = e->getAttribute (KMPlayer::Ids::attr_src);
             if (!asrc.isEmpty ())
                 src = asrc;
         }
     }
     PlaylistItemBase::closed ();
 }
 
 KDE_NO_EXPORT KMPlayer::Node *HtmlObject::childFromTag (const QString & tag) {
     QByteArray ba = tag.toUtf8 ();
     const char *name = ba.constData ();
     if (!strcasecmp (name, "param"))
         return new KMPlayer::DarkNode (m_doc, name, KMPlayer::id_node_param);
     else if (!strcasecmp (name, "embed"))
         return new KMPlayer::DarkNode(m_doc, name,KMPlayer::id_node_html_embed);
     return NULL;
 }
 
 Generator::Generator (KMPlayerApp *a)
  : FileDocument (id_node_gen_document, QString (),
             a->player ()->sources () ["listssource"]),
    app (a), qprocess (NULL), data (NULL)
 {}
 
 KMPlayer::Node *Generator::childFromTag (const QString &tag) {
     QByteArray ba = tag.toUtf8();
     const char *ctag = ba.constData ();
     if (!strcmp (ctag, "generator"))
         return new GeneratorElement (m_doc, tag, id_node_gen_generator);
     return NULL;
 }
 
 QString Generator::genReadAsk (KMPlayer::Node *n) {
     QString title;
     QString desc;
     QString type = static_cast <Element *> (n)->getAttribute (
             KMPlayer::Ids::attr_type);
     QString key = static_cast<Element*>(n)->getAttribute ("key");
     QString def = static_cast<Element*>(n)->getAttribute ("default");
     QString input;
     KConfigGroup cfg(KSharedConfig::openConfig(), "Generator Defaults");
     if (!key.isEmpty ())
         def = cfg.readEntry (key, def);
     if (type == "file") {
         input = KFileDialog::getOpenFileName (KUrl (def), QString(), app);
     } else if (type == "dir") {
         input = KFileDialog::getExistingDirectoryUrl (KUrl (def), app).toLocalFile ();
         if (!input.isEmpty ())
             input += QChar ('/');
     } else {
         for (KMPlayer::Node *c = n->firstChild (); c; c = c->nextSibling ())
             switch (c->id) {
                 case id_node_gen_title:
                     title = c->innerText ().simplified ();
                     break;
                 case id_node_gen_description:
                     desc = c->innerText ().simplified ();
                     break;
             }
         input = QInputDialog::getText(0, title, desc, QLineEdit::Normal, def);
     }
     if (input.isNull ())
         canceled = true;
     else if (!key.isEmpty ())
         cfg.writeEntry (key, input);
     return input;
 }
 
 QString Generator::genReadUriGet (KMPlayer::Node *n) {
     QString str;
     bool first = true;
     for (KMPlayer::Node *c = n->firstChild (); c && !canceled; c = c->nextSibling ()) {
         QString key;
         QString val;
         switch (c->id) {
         case id_node_gen_http_key_value: {
             KMPlayer::Node *q = c->firstChild ();
             if (q) {
                 key = genReadString (q);
                 q = q->nextSibling ();
                 if (q && !canceled)
                     val = genReadString (q);
             }
             break;
         }
         default:
             key = genReadString (c);
             break;
         }
         if (!key.isEmpty ()) {
             if (first) {
                 str += QChar ('?');
                 first = false;
             } else {
                 str += QChar ('&');
             }
             str += QUrl::toPercentEncoding (key);
             if (!val.isEmpty ())
                 str += QChar ('=') + QString (QUrl::toPercentEncoding (val));
         }
     }
     return str;
 }
 
 QString Generator::genReadString (KMPlayer::Node *n) {
     QString str;
     bool need_quote = quote;
     bool find_resource = false;
     quote = false;
     for (KMPlayer::Node *c = n->firstChild (); c && !canceled; c = c->nextSibling ())
         switch (c->id) {
         case id_node_gen_uri:
         case id_node_gen_sequence:
             str += genReadString (c);
             break;
         case id_node_gen_literal:
             str += c->innerText ().simplified ();
             break;
         case id_node_gen_predefined: {
             QString val = static_cast <Element *>(c)->getAttribute ("key");
             if (val == "data" || val == "sysdata") {
                 str += "kmplayer";
                 find_resource = true;
             }
             break;
         }
         case id_node_gen_http_get:
             str += genReadUriGet (c);
             break;
         case id_node_gen_ask:
             str += genReadAsk (c);
             break;
         case KMPlayer::id_node_text:
              str += c->nodeValue ().simplified ();
         }
     if (find_resource)
         str = QStandardPaths::locate(QStandardPaths::GenericDataLocation, str);
     if (!static_cast <Element *>(n)->getAttribute ("encoding").isEmpty ())
         str = QUrl::toPercentEncoding (str);
     if (need_quote) {
         //from QProcess' parseCombinedArgString
         str.replace (QChar ('"'), QString ("\"\"\""));
         str = QChar ('"') + str + QChar ('"');
         quote = true;
     }
     return str;
 }
 
 QString Generator::genReadInput (KMPlayer::Node *n) {
     quote = false;
     return genReadString (n);
 }
 
 QString Generator::genReadProcess (KMPlayer::Node *n) {
     QString process;
     QString str;
     quote = true;
     for (KMPlayer::Node *c = n->firstChild (); c && !canceled; c = c->nextSibling ())
         switch (c->id) {
         case id_node_gen_program:
             process = QString (genReadString (c));
             break;
         case id_node_gen_argument:
             process += QChar (' ') + genReadString (c);
             break;
         }
     return process;
 }
 
 void Generator::activate () {
     QString input;
     canceled = false;
     KMPlayer::Node *n = firstChild ();
     if (n && n->id == id_node_gen_generator) {
         title = static_cast<Element *>(n)->getAttribute (
                 KMPlayer::Ids::attr_name);
         for (KMPlayer::Node *c = n->firstChild (); c && !canceled; c = c->nextSibling ())
             switch (c->id) {
             case id_node_gen_input:
                 input = genReadInput (c);
                 break;
             case id_node_gen_process:
                 process = genReadProcess (c);
             }
     }
     if (canceled)
         return;
     if (!input.isEmpty () && process.isEmpty ()) {
         message (KMPlayer::MsgInfoString, &input);
         //openFile (m_control->m_app, input);
     } else if (!process.isEmpty ()) {
         data = new QTextStream (&buffer);
         if (input.isEmpty ()) {
             message (KMPlayer::MsgInfoString, &process);
             begin ();
         } else {
             QString cmdline (input + " | " + process);
             message (KMPlayer::MsgInfoString, &cmdline);
             if (!media_info)
                 media_info = new KMPlayer::MediaInfo (
                         this, KMPlayer::MediaManager::Data);
             state = state_activated;
             media_info->wget (input);
         }
     }
 }
 
 void Generator::begin () {
     if (!qprocess) {
         qprocess = new QProcess (app);
         connect (qprocess, SIGNAL (started ()),
                  this, SLOT (started ()));
         connect (qprocess, SIGNAL (error (QProcess::ProcessError)),
                  this, SLOT (error (QProcess::ProcessError)));
         connect (qprocess, SIGNAL (finished (int, QProcess::ExitStatus)),
                  this, SLOT (finished ()));
         connect (qprocess, SIGNAL (readyReadStandardOutput ()),
                  this, SLOT (readyRead ()));
     }
     QString info;
     if (media_info)
         info = QString ("Input data ") +
             QString::number (media_info->rawData ().size () / 1024.0) + "kb | ";
     info += process;
     message (KMPlayer::MsgInfoString, &info);
     kDebug() << process;
     qprocess->start (process);
     state = state_began;
 }
 
 void Generator::deactivate () {
     if (qprocess) {
         disconnect (qprocess, SIGNAL (started ()),
                     this, SLOT (started ()));
         disconnect (qprocess, SIGNAL (error (QProcess::ProcessError)),
                     this, SLOT (error (QProcess::ProcessError)));
         disconnect (qprocess, SIGNAL (finished (int, QProcess::ExitStatus)),
                     this, SLOT (finished ()));
         disconnect (qprocess, SIGNAL (readyReadStandardOutput ()),
                     this, SLOT (readyRead ()));
         qprocess->kill ();
         qprocess->deleteLater ();
     }
     qprocess = NULL;
     delete data;
     data = NULL;
     buffer.clear ();
     FileDocument::deactivate ();
 }
 
 void Generator::message (KMPlayer::MessageType msg, void *content) {
     if (KMPlayer::MsgMediaReady == msg) {
         if (!media_info->rawData ().size ()) {
             QString err ("No input data received");
             message (KMPlayer::MsgInfoString, &err);
             deactivate ();
         } else {
             begin ();
         }
     } else {
         FileDocument::message (msg, content);
     }
 }
 
 void Generator::readyRead () {
     if (qprocess->bytesAvailable ())
         *data << qprocess->readAll();
     if (qprocess->state () == QProcess::NotRunning) {
         if (!buffer.isEmpty ()) {
             Playlist *pl = new Playlist (app, m_source, true);
             KMPlayer::NodePtr n = pl;
             pl->src.clear ();
             QTextStream stream (&buffer, QIODevice::ReadOnly);
             KMPlayer::readXML (pl, stream, QString (), false);
             pl->title = title;
             pl->normalize ();
             message (KMPlayer::MsgInfoString, NULL);
             bool reset_only = m_source == app->player ()->source ();
             if (reset_only)
                 app->player ()->stop ();
             m_source->setDocument (pl, pl);
             if (reset_only) {
                 m_source->activate ();
                 app->setCaption (getAttribute(KMPlayer::Ids::attr_name));
             } else {
                 app->player ()->setSource (m_source);
             }
         } else {
             QString err ("No data received");
             message (KMPlayer::MsgInfoString, &err);
         }
         deactivate ();
     }
 }
 
 void Generator::started () {
     if (media_info) {
         QByteArray &ba = media_info->rawData ();
         // TODO validate utf8
         if (ba.size ())
             qprocess->write (ba);
         qprocess->closeWriteChannel ();
         return;
     }
     message (KMPlayer::MsgInfoString, &process);
 }
 
 void Generator::error (QProcess::ProcessError err) {
     kDebug () << (int)err;
     QString msg ("Couldn't start process");
     message (KMPlayer::MsgInfoString, &msg);
     deactivate ();
 }
 
 void Generator::finished () {
     if (active () && state_deferred != state)
         readyRead ();
 }
 
 struct GeneratorTag {
     const char *tag;
     short id;
 } gen_tags[] = {
     { "input", id_node_gen_input },
     { "process", id_node_gen_process },
     { "uri", id_node_gen_uri },
     { "literal", id_node_gen_literal },
     { "ask", id_node_gen_ask },
     { "title", id_node_gen_title },
     { "description", id_node_gen_description },
     { "process", id_node_gen_process },
     { "program", id_node_gen_program },
     { "argument", id_node_gen_argument },
     { "predefined", id_node_gen_predefined },
     { "http-get", id_node_gen_http_get },
     { "key-value", id_node_gen_http_key_value },
     { "key", id_node_gen_sequence },
     { "value", id_node_gen_sequence },
     { "sequence", id_node_gen_sequence },
     { NULL, -1 }
 };
 
 KMPlayer::Node *GeneratorElement::childFromTag (const QString &tag) {
     QByteArray ba = tag.toUtf8();
     const char *ctag = ba.constData ();
     for (GeneratorTag *t = gen_tags; t->tag; ++t)
         if (!strcmp (ctag, t->tag))
             return new GeneratorElement (m_doc, tag, t->id);
     return NULL;
 }