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160 lines
3.8 KiB
160 lines
3.8 KiB
/*
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* newsiconmgr.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 "newsiconmgr.h"
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#include <dcopclient.h>
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#include <kapplication.h>
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#include <kiconloader.h>
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#include <kstandarddirs.h>
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#include <tqbuffer.h>
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#include <tqfile.h>
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#include <tqimage.h>
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struct KIODownload
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{
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KURL url;
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TQByteArray data;
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TQIODevice::Offset dataOffset;
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};
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NewsIconMgr *NewsIconMgr::m_instance = 0;
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NewsIconMgr *NewsIconMgr::self()
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{
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if (!m_instance)
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m_instance = new NewsIconMgr();
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return m_instance;
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}
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NewsIconMgr::NewsIconMgr(TQObject *parent, const char *name)
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: TQObject(parent, name), DCOPObject("NewsIconMgr"),
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m_stdIcon(SmallIcon(TQString::fromLatin1("news")))
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{
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connectDCOPSignal("kded",
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"favicons", "iconChanged(bool, TQString, TQString)",
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"slotGotIcon(bool, TQString, TQString)",
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false);
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}
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NewsIconMgr::~NewsIconMgr()
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{
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delete m_instance;
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}
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void NewsIconMgr::getIcon(const KURL &url)
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{
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if (url.isEmpty()) {
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emit gotIcon(url, m_stdIcon);
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return;
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}
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if (url.isLocalFile()) {
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if (TQFile::exists(url.encodedPathAndQuery())) {
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TQPixmap icon(url.encodedPathAndQuery());
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if (!icon.isNull()) {
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if (icon.size() != TQSize(16, 16)) {
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if (!icon.convertFromImage(icon.convertToImage().smoothScale(16, 16, TQ_ScaleMin))) {
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emit gotIcon(url, m_stdIcon);
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return;
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}
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}
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emit gotIcon(url, icon);
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return;
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}
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}
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emit gotIcon(url, m_stdIcon);
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return;
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}
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if (url.encodedPathAndQuery() == "/favicon.ico") {
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if (favicon(url).isNull()) {
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TQByteArray data;
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TQDataStream ds(data, IO_WriteOnly);
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ds << url;
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kapp->dcopClient()->send("kded", "favicons", "downloadHostIcon(KURL)", data);
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} else {
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emit gotIcon(url, TQPixmap(TDEGlobal::dirs()->findResource("cache",
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TQString::fromLatin1("favicons/%1.png").arg(url.host()))));
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}
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} else {
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TDEIO::Job *job = TDEIO::get(url, true, false);
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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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KIODownload download;
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download.url = url;
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download.dataOffset = 0;
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m_tdeioDownload.insert(job, download);
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}
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}
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bool NewsIconMgr::isStdIcon(const TQPixmap &pixmap) const
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{
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if (!pixmap.isNull())
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return pixmap.convertToImage() == m_stdIcon.convertToImage();
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else
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return false;
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}
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void NewsIconMgr::slotData(TDEIO::Job *job, const TQByteArray &data)
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{
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TQBuffer buf(m_tdeioDownload[job].data);
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buf.open(IO_WriteOnly);
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buf.at(m_tdeioDownload[job].dataOffset);
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buf.writeBlock(data);
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m_tdeioDownload[job].dataOffset = buf.at();
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}
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void NewsIconMgr::slotResult(TDEIO::Job *job)
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{
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emit gotIcon(m_tdeioDownload[job].url, TQPixmap(m_tdeioDownload[job].data));
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m_tdeioDownload.remove(job);
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}
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void NewsIconMgr::slotGotIcon(bool isHost, TQString hostOrURL, TQString iconName)
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{
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KURL url = KURL(hostOrURL);
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if (!isHost)
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url.setProtocol(TQString::fromLatin1("http"));
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if (iconName.isNull())
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emit gotIcon(url, m_stdIcon);
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else
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emit gotIcon(url, TQPixmap(TDEGlobal::dirs()->findResource("cache",
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TQString::fromLatin1("favicons/%1.png").arg(url.host()))));
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}
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TQString NewsIconMgr::favicon(const KURL &url) const
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{
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TQByteArray data, reply;
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TQCString replyType;
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TQDataStream ds(data, IO_WriteOnly);
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ds << url;
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kapp->dcopClient()->call("kded", "favicons", "iconForURL(KURL)", data, replyType, reply);
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if (replyType == TQSTRING_OBJECT_NAME_STRING) {
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TQDataStream replyStream(reply, IO_ReadOnly);
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TQString result;
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replyStream >> result;
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return result;
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}
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return TQString();
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}
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#include "newsiconmgr.moc"
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