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/*
* newsiconmgr.cpp
*
* Copyright (c) 2001 Frerich Raabe <raabe@kde.org>
*
* 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. For licensing and distribution details, check the
* accompanying file 'COPYING'.
*/
#include "newsiconmgr.h"
#include <dcopclient.h>
#include <kapplication.h>
#include <kiconloader.h>
#include <kstandarddirs.h>
#include <tqbuffer.h>
#include <tqfile.h>
#include <tqimage.h>
struct KIODownload
{
KURL url;
TQByteArray data;
TQIODevice::Offset dataOffset;
};
NewsIconMgr *NewsIconMgr::m_instance = 0;
NewsIconMgr *NewsIconMgr::self()
{
if (!m_instance)
m_instance = new NewsIconMgr();
return m_instance;
}
NewsIconMgr::NewsIconMgr(TQObject *parent, const char *name)
: TQObject(parent, name), DCOPObject("NewsIconMgr"),
m_stdIcon(SmallIcon(TQString::tqfromLatin1("news")))
{
connectDCOPSignal("kded",
"favicons", "iconChanged(bool, TQString, TQString)",
"slotGotIcon(bool, TQString, TQString)",
false);
}
NewsIconMgr::~NewsIconMgr()
{
delete m_instance;
}
void NewsIconMgr::getIcon(const KURL &url)
{
if (url.isEmpty()) {
emit gotIcon(url, m_stdIcon);
return;
}
if (url.isLocalFile()) {
if (TQFile::exists(url.encodedPathAndQuery())) {
TQPixmap icon(url.encodedPathAndQuery());
if (!icon.isNull()) {
if (icon.size() != TQSize(16, 16)) {
if (!icon.convertFromImage(icon.convertToImage().smoothScale(16, 16, TQ_ScaleMin))) {
emit gotIcon(url, m_stdIcon);
return;
}
}
emit gotIcon(url, icon);
return;
}
}
emit gotIcon(url, m_stdIcon);
return;
}
if (url.encodedPathAndQuery() == "/favicon.ico") {
if (favicon(url).isNull()) {
TQByteArray data;
TQDataStream ds(data, IO_WriteOnly);
ds << url;
kapp->dcopClient()->send("kded", "favicons", "downloadHostIcon(KURL)", data);
} else {
emit gotIcon(url, TQPixmap(KGlobal::dirs()->findResource("cache",
TQString::tqfromLatin1("favicons/%1.png").tqarg(url.host()))));
}
} else {
KIO::Job *job = KIO::get(url, true, false);
connect(job, TQT_SIGNAL(data(KIO::Job *, const TQByteArray &)),
TQT_SLOT(slotData(KIO::Job *, const TQByteArray &)));
connect(job, TQT_SIGNAL(result(KIO::Job *)), TQT_SLOT(slotResult(KIO::Job *)));
KIODownload download;
download.url = url;
download.dataOffset = 0;
m_kioDownload.insert(job, download);
}
}
bool NewsIconMgr::isStdIcon(const TQPixmap &pixmap) const
{
if (!pixmap.isNull())
return pixmap.convertToImage() == m_stdIcon.convertToImage();
else
return false;
}
void NewsIconMgr::slotData(KIO::Job *job, const TQByteArray &data)
{
TQBuffer buf(m_kioDownload[job].data);
buf.open(IO_WriteOnly);
buf.at(m_kioDownload[job].dataOffset);
buf.writeBlock(data);
m_kioDownload[job].dataOffset = buf.at();
}
void NewsIconMgr::slotResult(KIO::Job *job)
{
emit gotIcon(m_kioDownload[job].url, TQPixmap(m_kioDownload[job].data));
m_kioDownload.remove(job);
}
void NewsIconMgr::slotGotIcon(bool isHost, TQString hostOrURL, TQString iconName)
{
KURL url = KURL(hostOrURL);
if (!isHost)
url.setProtocol(TQString::tqfromLatin1("http"));
if (iconName.isNull())
emit gotIcon(url, m_stdIcon);
else
emit gotIcon(url, TQPixmap(KGlobal::dirs()->findResource("cache",
TQString::tqfromLatin1("favicons/%1.png").tqarg(url.host()))));
}
TQString NewsIconMgr::favicon(const KURL &url) const
{
TQByteArray data, reply;
TQCString replyType;
TQDataStream ds(data, IO_WriteOnly);
ds << url;
kapp->dcopClient()->call("kded", "favicons", "iconForURL(KURL)", data, replyType, reply);
if (replyType == TQSTRING_OBJECT_NAME_STRING) {
TQDataStream replyStream(reply, IO_ReadOnly);
TQString result;
replyStream >> result;
return result;
}
return TQString();
}
#include "newsiconmgr.moc"
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