googlecontenthandler.cpp

/*
 *  Copyright (c) 2010 Mani Chandrasekar <maninc@gmail.com>
 *
 *  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.
 */

#include <QtXml>

#include "googledocumentlist.h"
#include "googledocument.h"
#include "googlecontenthandler.h"

GoogleContentHandler::GoogleContentHandler()
    : m_docList(0),
      m_docEntry(0)
{
    m_docList = new GoogleDocumentList();
}

bool GoogleContentHandler::characters(const QString & ch)
{
    if(!insideEntry) {
        if(QString::compare(m_nodeStack.top(), "title", Qt::CaseInsensitive) == 0) {
            if(m_nodeStack.count() == 2)
                m_docList->setTitle(ch);
        } else if(QString::compare(m_nodeStack.top(), "name", Qt::CaseInsensitive) == 0) {
            if(m_nodeStack.count() == 3)
                m_docList->setAuthor(ch);
        } else if(QString::compare(m_nodeStack.top(), "email", Qt::CaseInsensitive) == 0) {
            if(m_nodeStack.count() == 3)
                m_docList->setEmail(ch);
        }
    } else {
        if(m_docEntry == 0)
            return true;

        if(QString::compare(m_nodeStack.top(), "title", Qt::CaseInsensitive) == 0) {
            m_docEntry->setTitle(ch);
        } else if(QString::compare(m_nodeStack.top(), "name", Qt::CaseInsensitive) == 0) {
            m_docEntry->setAuthor(ch);
        } else if(QString::compare(m_nodeStack.top(), "resourceId", Qt::CaseInsensitive) == 0) {
            m_docEntry->setId(ch);
        }
    }
    return true;
}

bool GoogleContentHandler::endDocument()
{
    //qDebug() << "GoogleContentHandler::endDocument()";
    return true;
}

bool GoogleContentHandler::endElement(const QString & namespaceURI, const QString & localName, const QString & qName)
{
    //printName(localName);
    QString element = m_nodeStack.pop();
    if(QString::compare(element, "entry") == 0) {
        insideEntry = false;
        m_docList->append(m_docEntry);
        m_docEntry = 0;
    }
    return true;
}

bool GoogleContentHandler::endPrefixMapping(const QString & prefix)
{
    return true;
}

QString GoogleContentHandler::errorString() const
{
    return QString();
}

bool GoogleContentHandler::ignorableWhitespace(const QString & ch)
{
    return true;
}

bool GoogleContentHandler::processingInstruction(const QString & target, const QString & data)
{
    return true;
}

void GoogleContentHandler::setDocumentLocator(QXmlLocator * locator)
{
}

bool GoogleContentHandler::skippedEntity(const QString & name)
{
    return true;
}

bool GoogleContentHandler::startDocument()
{
    return true;
}

bool GoogleContentHandler::startElement(const QString & namespaceURI, const QString & localName,
                                        const QString & qName, const QXmlAttributes & atts)
{
    m_nodeStack.push(localName);

    if((m_nodeStack.count() == 1) && (m_docList != 0)) {  //Feed element
        m_docList->setEtag(atts.value("gd:etag"));
    }

    if(QString::compare(localName, "entry", Qt::CaseInsensitive) == 0) {
        m_docEntry = new GoogleDocument();
        m_docEntry->setEtag(atts.value("gd:etag"));
        insideEntry = true;
    }
    if(insideEntry && (QString::compare(localName, "content", Qt::CaseInsensitive) == 0) && (m_docEntry != 0)) {
        m_docEntry->setDocumentUrl(atts.value("src"));
    }

    //printName(localName);

    return true;
}

bool GoogleContentHandler::startPrefixMapping(const QString & prefix, const QString & uri)
{
    //qDebug() << "GoogleContentHandler::startPrefixMapping() " << prefix << uri;
    return true;
}

void GoogleContentHandler::printName(const QString & name)
{
    int count = m_nodeStack.count();
    QString indent;
    for(int i = 0; i < count; i++)
        indent.append("\t");
    indent.append(name);

    if(insideEntry);
//        qDebug() << indent;
}