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tdepim/kontact/plugins/newsticker/summarywidget.cpp

320 lines
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/*
This file is part of Kontact.
Copyright (c) 2003 Tobias Koenig <tokoe@kde.org>
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.
As a special exception, permission is given to link this program
with any edition of TQt, and distribute the resulting executable,
without including the source code for TQt in the source distribution.
*/
#include <tqclipboard.h>
#include <tqeventloop.h>
#include <tqhbox.h>
#include <tqlayout.h>
#include <tqpixmap.h>
#include <tqpopupmenu.h>
#include <tqcursor.h>
#include <dcopclient.h>
#include <kapplication.h>
#include <kcharsets.h>
#include <kconfig.h>
#include <kdebug.h>
#include <kglobal.h>
#include <kiconloader.h>
#include <klocale.h>
#include <kurllabel.h>
#include "summarywidget.h"
SummaryWidget::SummaryWidget( TQWidget *parent, const char *name )
: Kontact::Summary( parent, name ),
DCOPObject( "NewsTickerPlugin" ), mLayout( 0 ), mFeedCounter( 0 )
{
TQVBoxLayout *vlay = new TQVBoxLayout( this, 3, 3 );
TQPixmap icon = TDEGlobal::iconLoader()->loadIcon( "kontact_news",
KIcon::Desktop, KIcon::SizeMedium );
TQWidget *header = createHeader( this, icon, i18n( "News Feeds" ) );
vlay->addWidget( header );
TQString error;
TQCString appID;
bool dcopAvailable = true;
if ( !kapp->dcopClient()->isApplicationRegistered( "rssservice" ) ) {
if ( TDEApplication::startServiceByDesktopName( "rssservice", TQStringList(), &error, &appID ) ) {
TQLabel *label = new TQLabel( i18n( "No rss dcop service available.\nYou need rssservice to use this plugin." ), this );
vlay->addWidget( label, TQt::AlignHCenter );
dcopAvailable = false;
}
}
mBaseWidget = new TQWidget( this, "baseWidget" );
vlay->addWidget( mBaseWidget );
connect( &mTimer, TQT_SIGNAL( timeout() ), this, TQT_SLOT( updateDocuments() ) );
readConfig();
connectDCOPSignal( 0, 0, "documentUpdateError(DCOPRef,int)", "documentUpdateError(DCOPRef, int)", false );
if ( dcopAvailable )
initDocuments();
connectDCOPSignal( 0, 0, "added(TQString)", "documentAdded(TQString)", false );
connectDCOPSignal( 0, 0, "removed(TQString)", "documentRemoved(TQString)", false );
}
int SummaryWidget::summaryHeight() const
{
return ( mFeeds.count() == 0 ? 1 : mFeeds.count() );
}
void SummaryWidget::documentAdded( TQString )
{
initDocuments();
}
void SummaryWidget::documentRemoved( TQString )
{
initDocuments();
}
void SummaryWidget::configChanged()
{
readConfig();
updateView();
}
void SummaryWidget::readConfig()
{
KConfig config( "kcmkontactkntrc" );
config.setGroup( "General" );
mUpdateInterval = config.readNumEntry( "UpdateInterval", 600 );
mArticleCount = config.readNumEntry( "ArticleCount", 4 );
}
void SummaryWidget::initDocuments()
{
mFeeds.clear();
DCOPRef dcopCall( "rssservice", "RSSService" );
TQStringList urls;
dcopCall.call( "list()" ).get( urls );
if ( urls.isEmpty() ) { // add default
urls.append( "http://www.kde.org/dotkdeorg.rdf" );
dcopCall.send( "add(TQString)", urls[ 0 ] );
}
TQStringList::Iterator it;
for ( it = urls.begin(); it != urls.end(); ++it ) {
DCOPRef feedRef = dcopCall.call( "document(TQString)", *it );
Feed feed;
feed.ref = feedRef;
feedRef.call( "title()" ).get( feed.title );
feedRef.call( "link()" ).get( feed.url );
feedRef.call( "pixmap()" ).get( feed.logo );
mFeeds.append( feed );
disconnectDCOPSignal( "rssservice", feedRef.obj(), "documentUpdated(DCOPRef)", 0 );
connectDCOPSignal( "rssservice", feedRef.obj(), "documentUpdated(DCOPRef)",
"documentUpdated(DCOPRef)", false );
if ( tqApp )
tqApp->eventLoop()->processEvents( TQEventLoop::ExcludeUserInput |
TQEventLoop::ExcludeSocketNotifiers );
}
updateDocuments();
}
void SummaryWidget::updateDocuments()
{
mTimer.stop();
FeedList::Iterator it;
for ( it = mFeeds.begin(); it != mFeeds.end(); ++it )
(*it).ref.send( "refresh()" );
mTimer.start( 1000 * mUpdateInterval );
}
void SummaryWidget::documentUpdated( DCOPRef feedRef )
{
ArticleMap map;
int numArticles = feedRef.call( "count()" );
for ( int i = 0; i < numArticles; ++i ) {
DCOPRef artRef = feedRef.call( "article(int)", i );
TQString title, url;
if ( tqApp )
tqApp->eventLoop()->processEvents( TQEventLoop::ExcludeUserInput |
TQEventLoop::ExcludeSocketNotifiers );
artRef.call( "title()" ).get( title );
artRef.call( "link()" ).get( url );
TQPair<TQString, KURL> article(title, KURL( url ));
map.append( article );
}
FeedList::Iterator it;
for ( it = mFeeds.begin(); it != mFeeds.end(); ++it )
if ( (*it).ref.obj() == feedRef.obj() ) {
(*it).map = map;
if ( (*it).title.isEmpty() )
feedRef.call( "title()" ).get( (*it).title );
if ( (*it).url.isEmpty() )
feedRef.call( "link()" ).get( (*it).url );
if ( (*it).logo.isNull() )
feedRef.call( "pixmap()" ).get( (*it).logo );
}
mFeedCounter++;
if ( mFeedCounter == mFeeds.count() ) {
mFeedCounter = 0;
updateView();
}
}
void SummaryWidget::updateView()
{
mLabels.setAutoDelete( true );
mLabels.clear();
mLabels.setAutoDelete( false );
delete mLayout;
mLayout = new TQVBoxLayout( mBaseWidget, 3 );
TQFont boldFont;
boldFont.setBold( true );
boldFont.setPointSize( boldFont.pointSize() + 2 );
FeedList::Iterator it;
for ( it = mFeeds.begin(); it != mFeeds.end(); ++it ) {
TQHBox *hbox = new TQHBox( mBaseWidget );
mLayout->addWidget( hbox );
// icon
KURLLabel *urlLabel = new KURLLabel( hbox );
urlLabel->setURL( (*it).url );
urlLabel->setPixmap( (*it).logo );
urlLabel->setMaximumSize( urlLabel->minimumSizeHint() );
mLabels.append( urlLabel );
connect( urlLabel, TQT_SIGNAL( leftClickedURL( const TQString& ) ),
kapp, TQT_SLOT( invokeBrowser( const TQString& ) ) );
connect( urlLabel, TQT_SIGNAL( rightClickedURL( const TQString& ) ),
this, TQT_SLOT( rmbMenu( const TQString& ) ) );
// header
TQLabel *label = new TQLabel( hbox );
label->setText( KCharsets::resolveEntities( (*it).title ) );
label->setAlignment( AlignLeft|AlignVCenter );
label->setFont( boldFont );
label->setIndent( 6 );
label->setMaximumSize( label->minimumSizeHint() );
mLabels.append( label );
hbox->setMaximumWidth( hbox->minimumSizeHint().width() );
hbox->show();
// articles
ArticleMap articles = (*it).map;
ArticleMap::Iterator artIt;
int numArticles = 0;
for ( artIt = articles.begin(); artIt != articles.end() && numArticles < mArticleCount; ++artIt ) {
urlLabel = new KURLLabel( (*artIt).second.url(), (*artIt).first, mBaseWidget );
urlLabel->installEventFilter( this );
//TODO: RichText causes too much horizontal space between articles
//urlLabel->setTextFormat( RichText );
mLabels.append( urlLabel );
mLayout->addWidget( urlLabel );
connect( urlLabel, TQT_SIGNAL( leftClickedURL( const TQString& ) ),
kapp, TQT_SLOT( invokeBrowser( const TQString& ) ) );
connect( urlLabel, TQT_SIGNAL( rightClickedURL( const TQString& ) ),
this, TQT_SLOT( rmbMenu( const TQString& ) ) );
numArticles++;
}
}
for ( TQLabel *label = mLabels.first(); label; label = mLabels.next() )
label->show();
}
void SummaryWidget::documentUpdateError( DCOPRef feedRef, int errorCode )
{
kdDebug() << " error while updating document, error code: " << errorCode << endl;
FeedList::Iterator it;
for ( it = mFeeds.begin(); it != mFeeds.end(); ++it ) {
if ( (*it).ref.obj() == feedRef.obj() ) {
mFeeds.remove( it );
break;
}
}
if ( mFeedCounter == mFeeds.count() ) {
mFeedCounter = 0;
updateView();
}
}
TQStringList SummaryWidget::configModules() const
{
return "kcmkontactknt.desktop";
}
void SummaryWidget::updateSummary( bool )
{
updateDocuments();
}
void SummaryWidget::rmbMenu( const TQString& url )
{
TQPopupMenu menu;
menu.insertItem( i18n( "Copy URL to Clipboard" ) );
int id = menu.exec( TQCursor::pos() );
if ( id != -1 )
kapp->clipboard()->setText( url, TQClipboard::Clipboard );
}
bool SummaryWidget::eventFilter( TQObject *obj, TQEvent* e )
{
if ( obj->inherits( "KURLLabel" ) ) {
KURLLabel* label = static_cast<KURLLabel*>( TQT_TQWIDGET(obj) );
if ( e->type() == TQEvent::Enter )
emit message( label->url() );
if ( e->type() == TQEvent::Leave )
emit message( TQString() );
}
return Kontact::Summary::eventFilter( obj, e );
}
#include "summarywidget.moc"