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133 lines
4.1 KiB
133 lines
4.1 KiB
/*
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* xmlnewsaccess.cpp
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*
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* Copyright (c) 2001 Frerich Raabe <raabe@kde.org>
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. For licensing and distribution details, check the
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* accompanying file 'COPYING'.
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*/
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#include "xmlnewsaccess.h"
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#include <kcharsets.h>
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#include <kdebug.h>
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#include <tdeglobal.h>
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#include <tqbuffer.h>
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#include <tqdom.h>
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#include <tqregexp.h>
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XMLNewsArticle::XMLNewsArticle(const TQString &headline, const KURL &address)
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: m_headline(headline),
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m_address(address)
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{
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}
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XMLNewsArticle &XMLNewsArticle::operator=(const XMLNewsArticle &other)
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{
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m_headline = other.m_headline;
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m_address = other.m_address;
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return *this;
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}
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bool XMLNewsArticle::operator==(const XMLNewsArticle &a)
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{
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return m_headline == a.headline() && m_address == a.address();
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}
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XMLNewsSource::XMLNewsSource() : TQObject(),
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m_name(TQString()),
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m_link(TQString()),
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m_description(TQString()),
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m_downloadData(0)
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{
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}
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XMLNewsSource::~XMLNewsSource()
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{
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delete m_downloadData; // Might exist if we are in the middle of a download
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}
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void XMLNewsSource::loadFrom(const KURL &url)
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{
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if ( m_downloadData != 0 ) {
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kdDebug( 5005 ) << "XMLNewsSource::loadFrom(): Busy, ignoring load "
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"request for " << url << endl;
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return;
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}
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m_downloadData = new TQBuffer;
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m_downloadData->open(IO_WriteOnly);
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TDEIO::Job *job = TDEIO::get(url, false, false);
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job->addMetaData(TQString::fromLatin1("UserAgent"),
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TQString::fromLatin1("KNewsTicker v0.2"));
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connect(job, TQT_SIGNAL(data(TDEIO::Job *, const TQByteArray &)),
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TQT_SLOT(slotData(TDEIO::Job *, const TQByteArray &)));
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connect(job, TQT_SIGNAL(result(TDEIO::Job *)), TQT_SLOT(slotResult(TDEIO::Job *)));
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}
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void XMLNewsSource::slotData(TDEIO::Job *, const TQByteArray &data)
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{
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m_downloadData->writeBlock(data.data(), data.size());
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}
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void XMLNewsSource::slotResult(TDEIO::Job *job)
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{
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kdDebug(5005) << "XMLNewsSource::slotResult(): Finished downloading data (" << job->error() << ")." << endl;
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processData(m_downloadData->buffer(), !job->error());
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delete m_downloadData;
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m_downloadData = 0;
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}
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void XMLNewsSource::processData(const TQByteArray &data, bool okSoFar)
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{
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bool validContent = okSoFar;
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kdDebug(5005) << "XMLNewsSource::processData(): validContent = " << validContent << endl;
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if (okSoFar) {
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/*
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* Some servers prepend whitespace before the <?xml...?> declaration.
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* Since TQDom doesn't like that we strip this first.
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*/
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TQDomDocument domDoc;
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const char *charData = data.data();
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int len = data.count();
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while (len && (*charData == ' ' || *charData == '\n' || *charData == '\t' || *charData == '\r') ) {
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len--;
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charData++;
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}
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TQByteArray tmpData;
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tmpData.setRawData(charData, len);
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if (validContent = domDoc.setContent(tmpData)) {
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TQDomNode channelNode = domDoc.documentElement().namedItem(TQString::fromLatin1("channel"));
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m_name = channelNode.namedItem(TQString::fromLatin1("title")).toElement().text().simplifyWhiteSpace();
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kdDebug(5005) << "XMLNewsSource::processData(): Successfully updated " << m_name << endl;
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m_link = channelNode.namedItem(TQString::fromLatin1("link")).toElement().text().simplifyWhiteSpace();
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m_description = channelNode.namedItem(TQString::fromLatin1("description")).toElement().text().simplifyWhiteSpace();
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TQDomNodeList items = domDoc.elementsByTagName(TQString::fromLatin1("item"));
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m_articles.clear();
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TQDomNode itemNode;
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TQString headline, address;
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for (unsigned int i = 0; i < items.count(); i++) {
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itemNode = items.item(i);
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headline = KCharsets::resolveEntities(itemNode.namedItem(TQString::fromLatin1("title")).toElement().text().simplifyWhiteSpace());
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address = KCharsets::resolveEntities(itemNode.namedItem(TQString::fromLatin1("link")).toElement().text().simplifyWhiteSpace());
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m_articles.append(XMLNewsArticle(headline, KURL( address )));
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}
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}
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kdDebug(5005) << "XMLNewsSource::processData(): validContent = " << validContent << endl;
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tmpData.resetRawData(charData, len);
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}
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emit loadComplete(this, validContent);
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}
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#include "xmlnewsaccess.moc"
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