summaryrefslogtreecommitdiffstats
path: root/akregator/src/akregator_part.cpp
blob: b69d0736ce7853cbd4cecf5a749c840b839a3e8f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
/*
    This file is part of Akregator.

    Copyright (C) 2004 Stanislav Karchebny <Stanislav.Karchebny@kdemail.net>
                  2005 Frank Osterfeld <frank.osterfeld at kdemail.net>

    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 <dcopclient.h>
#include <tdeaboutdata.h>
#include <tdeaction.h>
#include <tdeactionclasses.h>
#include <tdeactioncollection.h>
#include <tdeapplication.h>
#include <tdeconfig.h>
#include <tdeconfigdialog.h>
#include <tdefiledialog.h>
#include <tdeglobalsettings.h>
#include <tdehtmldefaults.h>
#include <kinstance.h>
#include <tdemainwindow.h>
#include <tdemessagebox.h>
#include <knotifyclient.h>
#include <knotifydialog.h>
#include <tdepopupmenu.h>
#include <kservice.h>
#include <kstandarddirs.h>
#include <kstdaction.h>
#include <tdetempfile.h>
#include <ktrader.h>
#include <tdeio/netaccess.h>
#include <tdeparts/browserinterface.h>
#include <tdeparts/genericfactory.h>
#include <tdeparts/partmanager.h>

#include <tqfile.h>
#include <tqobjectlist.h>
#include <tqstringlist.h>
#include <tqtimer.h>
#include <tqwidgetlist.h>
#include <tqucomextra_p.h>

#include <cerrno>
#include <sys/types.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#include "aboutdata.h"
#include "actionmanagerimpl.h"
#include "akregator_part.h"
#include "akregator_view.h"
#include "akregatorconfig.h"
#include "articlefilter.h"
#include "articleinterceptor.h"
#include "configdialog.h"
#include "fetchqueue.h"
#include "frame.h"
#include "article.h"
#include "kernel.h"
#include "kcursorsaver.h"
#include "notificationmanager.h"
#include "pageviewer.h"
#include "plugin.h"
#include "pluginmanager.h"
#include "storage.h"
#include "storagefactory.h"
#include "storagefactorydummyimpl.h"
#include "storagefactoryregistry.h"
#include "speechclient.h"
#include "trayicon.h"
#include "tagset.h"
#include "tag.h"

namespace Akregator {

typedef KParts::GenericFactory<Part> AkregatorFactory;
K_EXPORT_COMPONENT_FACTORY( libakregatorpart, AkregatorFactory )

BrowserExtension::BrowserExtension(Part *p, const char *name)
	    : KParts::BrowserExtension( p, name )
{
    m_part=p;
}

void BrowserExtension::saveSettings()
{
    m_part->saveSettings();
}

class Part::ApplyFiltersInterceptor : public ArticleInterceptor
{
    public:
    virtual ~ApplyFiltersInterceptor() {}

    virtual void processArticle(Article& article)
    {
        Filters::ArticleFilterList list = Kernel::self()->articleFilterList();
        for (Filters::ArticleFilterList::ConstIterator it = list.begin(); it != list.end(); ++it)
            (*it).applyTo(article);
    }
};

Part::Part( TQWidget *parentWidget, const char * /*widgetName*/,
                              TQObject *parent, const char *name, const TQStringList& )
    : DCOPObject("AkregatorIface")
       , MyBasePart(parent, name)
       , m_standardListLoaded(false)
       , m_shuttingDown(false)
       , m_mergedPart(0)
       , m_view(0)
       , m_backedUpList(false)
       , m_storage(0)
{
    // we need an instance
    setInstance( AkregatorFactory::instance() );

    // start knotifyclient if not already started. makes it work for people who doesn't use full kde, according to kmail devels
    KNotifyClient::startDaemon();

    m_standardFeedList = TDEGlobal::dirs()->saveLocation("data", "akregator/data") + "/feeds.opml";

    m_tagSetPath = TDEGlobal::dirs()->saveLocation("data", "akregator/data") + "/tagset.xml";

    Backend::StorageFactoryDummyImpl* dummyFactory = new Backend::StorageFactoryDummyImpl();
    Backend::StorageFactoryRegistry::self()->registerFactory(dummyFactory, dummyFactory->key());
    loadPlugins(); // FIXME: also unload them!

    m_storage = 0;
    Backend::StorageFactory* factory = Backend::StorageFactoryRegistry::self()->getFactory(Settings::archiveBackend());
   
    TQStringList storageParams;
    
    storageParams.append(TQString("taggingEnabled=%1").arg(Settings::showTaggingGUI() ? "true" : "false"));
    
    if (factory != 0)
    {
        if (factory->allowsMultipleWriteAccess())
        {
            m_storage = factory->createStorage(storageParams);
        } 
        else
        {
            if (tryToLock(factory->name()))
                m_storage = factory->createStorage(storageParams);
            else 
                m_storage = dummyFactory->createStorage(storageParams);
        }
    }
    

    if (!m_storage) // Houston, we have a problem
    {
        m_storage = Backend::StorageFactoryRegistry::self()->getFactory("dummy")->createStorage(storageParams);

        KMessageBox::error(parentWidget, i18n("Unable to load storage backend plugin \"%1\". No feeds are archived.").arg(Settings::archiveBackend()), i18n("Plugin error") );
    }

    Filters::ArticleFilterList list;
    list.readConfig(Settings::self()->config());
    Kernel::self()->setArticleFilterList(list);

    m_applyFiltersInterceptor = new ApplyFiltersInterceptor();
    ArticleInterceptorManager::self()->addInterceptor(m_applyFiltersInterceptor);

    m_storage->open(true);
    Kernel::self()->setStorage(m_storage);
    Backend::Storage::setInstance(m_storage); // TODO: kill this one

    loadTagSet(m_tagSetPath);

    m_actionManager = new ActionManagerImpl(this);
    ActionManager::setInstance(m_actionManager);

    m_view = new Akregator::View(this, parentWidget, m_actionManager, "akregator_view");
    m_actionManager->initView(m_view);
    m_actionManager->setTagSet(Kernel::self()->tagSet());

    m_extension = new BrowserExtension(this, "ak_extension");

    connect(m_view, TQ_SIGNAL(setWindowCaption(const TQString&)), this, TQ_SIGNAL(setWindowCaption(const TQString&)));
    connect(m_view, TQ_SIGNAL(setStatusBarText(const TQString&)), this, TQ_SIGNAL(setStatusBarText(const TQString&)));
    connect(m_view, TQ_SIGNAL(setProgress(int)), m_extension, TQ_SIGNAL(loadingProgress(int)));
    connect(m_view, TQ_SIGNAL(signalCanceled(const TQString&)), this, TQ_SIGNAL(canceled(const TQString&)));
    connect(m_view, TQ_SIGNAL(signalStarted(TDEIO::Job*)), this, TQ_SIGNAL(started(TDEIO::Job*)));
    connect(m_view, TQ_SIGNAL(signalCompleted()), this, TQ_SIGNAL(completed()));

    // notify the part that this is our internal widget
    setWidget(m_view);

    TrayIcon* trayIcon = new TrayIcon( getMainWindow() );
    TrayIcon::setInstance(trayIcon);
    m_actionManager->initTrayIcon(trayIcon);

    connect(trayIcon, TQ_SIGNAL(showPart()), this, TQ_SIGNAL(showPart()));

    if ( isTrayIconEnabled() )
    {
        trayIcon->show();
        NotificationManager::self()->setWidget(trayIcon, instance());
    }
    else
        NotificationManager::self()->setWidget(getMainWindow(), instance());

    connect( trayIcon, TQ_SIGNAL(quitSelected()),
            kapp, TQ_SLOT(quit())) ;

    connect( m_view, TQ_SIGNAL(signalUnreadCountChanged(int)), trayIcon, TQ_SLOT(slotSetUnread(int)) );

    connect(kapp, TQ_SIGNAL(shutDown()), this, TQ_SLOT(slotOnShutdown()));

    m_autosaveTimer = new TQTimer(this);
    connect(m_autosaveTimer, TQ_SIGNAL(timeout()), this, TQ_SLOT(slotSaveFeedList()));
    m_autosaveTimer->start(5*60*1000); // 5 minutes

    setXMLFile("akregator_part.rc", true);

    initFonts();

    RSS::FileRetriever::setUserAgent(TQString("Akregator/%1; librss/remnants").arg(AKREGATOR_VERSION));
}

void Part::loadPlugins()
{
    // "[X-TDE-akregator-plugintype] == 'storage'"
    TDETrader::OfferList offers = PluginManager::query();

    for( TDETrader::OfferList::ConstIterator it = offers.begin(), end = offers.end(); it != end; ++it )
    {
        Akregator::Plugin* plugin = PluginManager::createFromService(*it);
        if (plugin)
            plugin->init();
    }
}

void Part::slotOnShutdown()
{
    m_shuttingDown = true;
    
    const TQString lockLocation = locateLocal("data", "akregator/lock");
    KSimpleConfig config(lockLocation);
    config.writeEntry("pid", -1);
    config.sync();

    m_autosaveTimer->stop();
    saveSettings();
    slotSaveFeedList();
    saveTagSet(m_tagSetPath);
    m_view->slotOnShutdown();
    //delete m_view;
    delete TrayIcon::getInstance();
    TrayIcon::setInstance(0L);
    delete m_storage;
    m_storage = 0;
    //delete m_actionManager;
}

void Part::slotSettingsChanged()
{
    NotificationManager::self()->setWidget(isTrayIconEnabled() ? TrayIcon::getInstance() : getMainWindow(), instance());

    RSS::FileRetriever::setUseCache(Settings::useHTMLCache());

    TQStringList fonts;
    fonts.append(Settings::standardFont());
    fonts.append(Settings::fixedFont());
    fonts.append(Settings::sansSerifFont());
    fonts.append(Settings::serifFont());
    fonts.append(Settings::standardFont());
    fonts.append(Settings::standardFont());
    fonts.append("0");
    Settings::setFonts(fonts);

    if (Settings::minimumFontSize() > Settings::mediumFontSize())
        Settings::setMediumFontSize(Settings::minimumFontSize());
    saveSettings();
    m_view->slotSettingsChanged();
    emit signalSettingsChanged();
}
void Part::saveSettings()
{
    Kernel::self()->articleFilterList().writeConfig(Settings::self()->config());
    m_view->saveSettings();
}

Part::~Part()
{
    kdDebug() << "Part::~Part() enter" << endl;
    if (!m_shuttingDown)
        slotOnShutdown();
    kdDebug() << "Part::~Part(): leaving" << endl;
    ArticleInterceptorManager::self()->removeInterceptor(m_applyFiltersInterceptor);
    delete m_applyFiltersInterceptor;
}

void Part::readProperties(TDEConfig* config)
{
    m_backedUpList = false;
    openStandardFeedList();

    if(m_view)
        m_view->readProperties(config);
}

void Part::saveProperties(TDEConfig* config)
{
    if (m_view)
    {
        slotSaveFeedList();
        m_view->saveProperties(config);
    }
}

bool Part::openURL(const KURL& url)
{
    m_file = url.path();
    return openFile();
}

void Part::openStandardFeedList()
{
    if ( !m_standardFeedList.isEmpty() && openURL(m_standardFeedList) )
        m_standardListLoaded = true;
}

TQDomDocument Part::createDefaultFeedList()
{
    TQDomDocument doc;
    TQDomProcessingInstruction z = doc.createProcessingInstruction("xml","version=\"1.0\" encoding=\"UTF-8\"");
    doc.appendChild( z );

    TQDomElement root = doc.createElement( "opml" );
    root.setAttribute("version","1.0");
    doc.appendChild( root );

    TQDomElement head = doc.createElement( "head" );
    root.appendChild(head);

    TQDomElement text = doc.createElement( "text" );
    text.appendChild(doc.createTextNode(i18n("Feeds")));
    head.appendChild(text);

    TQDomElement body = doc.createElement( "body" );
    root.appendChild(body);

    TQDomElement mainFolder = doc.createElement( "outline" );
    mainFolder.setAttribute("text","Free/Libre Software News");
    body.appendChild(mainFolder);

    TQDomElement tde = doc.createElement( "outline" );
    tde.setAttribute("text",i18n("Trinity Desktop News"));
    tde.setAttribute("xmlUrl","http://trinitydesktop.org/rss.php");
    mainFolder.appendChild(tde);

    TQDomElement lxer = doc.createElement( "outline" );
    lxer.setAttribute("text",i18n("LXer Linux News"));
    lxer.setAttribute("xmlUrl","http://lxer.com/module/newswire/headlines.rss");
    mainFolder.appendChild(lxer);

    TQDomElement tux = doc.createElement( "outline" );
    tux.setAttribute("text",i18n("Tuxmachines"));
    tux.setAttribute("xmlUrl","http://www.tuxmachines.org/node/feed");
    mainFolder.appendChild(tux);

    TQDomElement lwn = doc.createElement( "outline" );
    lwn.setAttribute("text",i18n("lwn.net"));
    lwn.setAttribute("xmlUrl","http://lwn.net/headlines/rss");
    mainFolder.appendChild(lwn);

    return doc;
}

bool Part::openFile()
{
    emit setStatusBarText(i18n("Opening Feed List...") );

    TQString str;
    // m_file is always local so we can use TQFile on it
    TQFile file(m_file);

    bool fileExists = file.exists();
    TQString listBackup = m_storage->restoreFeedList();
     
    TQDomDocument doc;

    if (!fileExists)
    {
        doc = createDefaultFeedList();
    }
    else 
    {
        if (file.open(IO_ReadOnly))
        {
            // Read OPML feeds list and build TQDom tree.
            TQTextStream stream(&file);
            stream.setEncoding(TQTextStream::UnicodeUTF8); // FIXME not all opmls are in utf8
            str = stream.read();
            file.close();
        }

        if (!doc.setContent(str))
        {

            if (file.size() > 0) // don't backup empty files 
            {
                TQString backup = m_file + "-backup." +  TQString::number(TQDateTime::currentDateTime().toTime_t());
        
                copyFile(backup);
        
                KMessageBox::error(m_view, i18n("<qt>The standard feed list is corrupted (invalid XML). A backup was created:<p><b>%2</b></p></qt>").arg(backup), i18n("XML Parsing Error") );
            }

            if (!doc.setContent(listBackup))
                doc = createDefaultFeedList();
        }
    }

    if (!m_view->loadFeeds(doc))
    {
        if (file.size() > 0) // don't backup empty files 
        {
            TQString backup = m_file + "-backup." +  TQString::number(TQDateTime::currentDateTime().toTime_t());
            copyFile(backup);

            KMessageBox::error(m_view, i18n("<qt>The standard feed list is corrupted (no valid OPML). A backup was created:<p><b>%2</b></p></qt>").arg(backup), i18n("OPML Parsing Error") );
        }
        m_view->loadFeeds(createDefaultFeedList());
    }

    emit setStatusBarText(TQString());
    

    if( Settings::markAllFeedsReadOnStartup() )
        m_view->slotMarkAllFeedsRead();

    if (Settings::fetchOnStartup())
            m_view->slotFetchAllFeeds();

    return true;
}

void Part::slotSaveFeedList()
{
    // don't save to the standard feed list, when it wasn't completely loaded before
    if (!m_standardListLoaded)
        return;

    // the first time we overwrite the feed list, we create a backup
    if (!m_backedUpList)
    {
        TQString backup = m_file + "~";

        if (copyFile(backup))
            m_backedUpList = true;
    }

    TQString xmlStr = m_view->feedListToOPML().toString();
    m_storage->storeFeedList(xmlStr);

    TQFile file(m_file);
    if (file.open(IO_WriteOnly) == false)
    {
        //FIXME: allow to save the feedlist into different location -tpr 20041118
        KMessageBox::error(m_view, i18n("Access denied: cannot save feed list (%1)").arg(m_file), i18n("Write error") );
        return;
    }

    // use TQTextStream to dump the text to the file
    TQTextStream stream(&file);
    stream.setEncoding(TQTextStream::UnicodeUTF8);

    // Write OPML data file.
    // Archive data files are saved elsewhere.

    stream << xmlStr << endl;

    file.close();
}

bool Part::isTrayIconEnabled() const
{
    return Settings::showTrayIcon();
}

bool Part::mergePart(KParts::Part* part)
{
    if (part != m_mergedPart)
    {
        if (!factory())
        {
          if (m_mergedPart)
            removeChildClient(m_mergedPart);
          else
            insertChildClient(part);
        }
        else
        {
          if (m_mergedPart) {
            factory()->removeClient(m_mergedPart);
            if (childClients()->containsRef(m_mergedPart))
              removeChildClient(m_mergedPart);
          }
          if (part)
            factory()->addClient(part);
        }

        m_mergedPart = part;
    }
    return true;
}

TQWidget* Part::getMainWindow()
{
    // this is a dirty fix to get the main window used for the tray icon
    
    TQWidgetList *l = kapp->topLevelWidgets();
    TQWidgetListIt it( *l );
    TQWidget *wid;

    // check if there is an akregator main window
    while ( (wid = it.current()) != 0 )
    {
        ++it;
        //kdDebug() << "win name: " << wid->name() << endl;
        if (TQString(wid->name()) == "akregator_mainwindow")
        {
            delete l;
            return wid;
        }
    }
    // if not, check for kontact main window
    TQWidgetListIt it2( *l );
    while ( (wid = it2.current()) != 0 )
    {
        ++it2;
        if (TQString(wid->name()).startsWith("kontact-mainwindow"))
        {
            delete l;
            return wid;
        }
    }
    delete l;
    return 0;
}

void Part::loadTagSet(const TQString& path)
{
    TQDomDocument doc;

    TQFile file(path);
    if (file.open(IO_ReadOnly))
    {
        doc.setContent(TQByteArray(file.readAll()));
        file.close();
    }
    // if we can't load the tagset from the xml file, check for the backup in the backend
    if (doc.isNull())
    {
        doc.setContent(m_storage->restoreTagSet());
    }

    if (!doc.isNull())
    {
        Kernel::self()->tagSet()->readFromXML(doc);
    }
    else
    {
        Kernel::self()->tagSet()->insert(Tag("http://akregator.sf.net/tags/Interesting", i18n("Interesting")));
    }
}

void Part::saveTagSet(const TQString& path)
{
    TQString xmlStr = Kernel::self()->tagSet()->toXML().toString();

    m_storage->storeTagSet(xmlStr);
    
    TQFile file(path);
    
    if ( file.open(IO_WriteOnly) )
    {

        TQTextStream stream(&file);
        stream.setEncoding(TQTextStream::UnicodeUTF8);
        stream << xmlStr << "\n";
        file.close();
    }
}

void Part::importFile(const KURL& url)
{
    TQString filename;

    bool isRemote = false;

    if (url.isLocalFile())
        filename = url.path();
    else
    {
        isRemote = true;

        if (!TDEIO::NetAccess::download(url, filename, m_view) )
        {
            KMessageBox::error(m_view, TDEIO::NetAccess::lastErrorString() );
            return;
        }
    }

    TQFile file(filename);
    if (file.open(IO_ReadOnly))
    {
        // Read OPML feeds list and build TQDom tree.
        TQDomDocument doc;
        if (doc.setContent(TQByteArray(file.readAll())))
            m_view->importFeeds(doc);
        else
            KMessageBox::error(m_view, i18n("Could not import the file %1 (no valid OPML)").arg(filename), i18n("OPML Parsing Error") );
    }
    else
        KMessageBox::error(m_view, i18n("The file %1 could not be read, check if it exists or if it is readable for the current user.").arg(filename), i18n("Read Error"));

    if (isRemote)
        TDEIO::NetAccess::removeTempFile(filename);
}

void Part::exportFile(const KURL& url)
{
    if (url.isLocalFile())
    {
        TQFile file(url.path());

        if ( file.exists() &&
                KMessageBox::questionYesNo(m_view,
            i18n("The file %1 already exists; do you want to overwrite it?").arg(file.name()),
            i18n("Export"),
            i18n("Overwrite"),
            KStdGuiItem::cancel()) == KMessageBox::No )
            return;

        if ( !file.open(IO_WriteOnly) )
        {
            KMessageBox::error(m_view, i18n("Access denied: cannot write to file %1").arg(file.name()), i18n("Write Error") );
            return;
        }

        TQTextStream stream(&file);
        stream.setEncoding(TQTextStream::UnicodeUTF8);

        stream << m_view->feedListToOPML().toString() << "\n";
        file.close();
    }
    else
    {
        KTempFile tmpfile;
        tmpfile.setAutoDelete(true);

        TQTextStream stream(tmpfile.file());
        stream.setEncoding(TQTextStream::UnicodeUTF8);

        stream << m_view->feedListToOPML().toString() << "\n";
        tmpfile.close();

        if (!TDEIO::NetAccess::upload(tmpfile.name(), url, m_view))
            KMessageBox::error(m_view, TDEIO::NetAccess::lastErrorString() );
    }
}

void Part::fileImport()
{
    KURL url = KFileDialog::getOpenURL( TQString(),
                        "*.opml *.xml|" + i18n("OPML Outlines (*.opml, *.xml)")
                        +"\n*|" + i18n("All Files") );

    if (!url.isEmpty())
        importFile(url);
}

    void Part::fileExport()
{
    KURL url= KFileDialog::getSaveURL( TQString(),
                        "*.opml *.xml|" + i18n("OPML Outlines (*.opml, *.xml)")
                        +"\n*|" + i18n("All Files") );

    if ( !url.isEmpty() )
        exportFile(url);
}

void Part::fileGetFeeds()
{
    /*GetFeeds *gf = new GetFeeds();
    gf->show();*/
     //KNS::DownloadDialog::open("akregator/feeds", i18n("Get New Feeds"));
}

void Part::fileSendArticle(bool attach)
{
    // FIXME: you have to open article to tab to be able to send...
    TQString title, text;

    text = m_view->currentFrame()->part()->url().prettyURL();
    if(text.isEmpty() || text.isNull())
        return;

    title = m_view->currentFrame()->title();

    if(attach) {
        kapp->invokeMailer("",
                           "",
                           "",
                           title,
                           text,
                           "",
                           text);
    }
    else {
        kapp->invokeMailer("",
                           "",
                           "",
                           title,
                           text);
    }
}

void Part::fetchAllFeeds()
{
    m_view->slotFetchAllFeeds();
}

void Part::fetchFeedUrl(const TQString&s)
{
    kdDebug() << "fetchFeedURL==" << s << endl;
}

void Part::addFeedsToGroup(const TQStringList& urls, const TQString& group)
{
    for (TQStringList::ConstIterator it = urls.begin(); it != urls.end(); ++it)
    {
        kdDebug() << "Akregator::Part::addFeedToGroup adding feed with URL " << *it << " to group " << group << endl;
        m_view->addFeedToGroup(*it, group);
    }
    NotificationManager::self()->slotNotifyFeeds(urls);
}

void Part::addFeed()
{
    m_view->slotFeedAdd();
}

TDEAboutData *Part::createAboutData()
{
    return new Akregator::AboutData;
}

void Part::showKNotifyOptions()
{
    TDEAboutData* about = new Akregator::AboutData;
    KNotifyDialog::configure(m_view, "akregator_knotify_config", about);
    delete about;
}

void Part::showOptions()
{
    if ( TDEConfigDialog::showDialog( "settings" ) )
        return;

    TDEConfigDialog* dialog = new ConfigDialog( m_view, "settings", Settings::self() );

    connect( dialog, TQ_SIGNAL(settingsChanged()),
             this, TQ_SLOT(slotSettingsChanged()) );
    connect( dialog, TQ_SIGNAL(settingsChanged()),
             TrayIcon::getInstance(), TQ_SLOT(settingsChanged()) );

    dialog->show();
}

void Part::partActivateEvent(KParts::PartActivateEvent* event)
{
    if (factory() && m_mergedPart)
    {
        if (event->activated())
            factory()->addClient(m_mergedPart);
        else
            factory()->removeClient(m_mergedPart);
    }

    MyBasePart::partActivateEvent(event);
}

KParts::Part* Part::hitTest(TQWidget *widget, const TQPoint &globalPos)
{
    bool child = false;
    TQWidget *me = this->widget();
    while (widget) {
        if (widget == me) {
            child = true;
            break;
        }
        if (!widget) {
            break;
        }
        widget = widget->parentWidget();
    }
    if (m_view && m_view->currentFrame() && child) {
        return m_view->currentFrame()->part();
    } else {
        return MyBasePart::hitTest(widget, globalPos);
    }
}

void Part::initFonts()
{
    TQStringList fonts = Settings::fonts();
    if (fonts.isEmpty())
    {
        fonts.append(TDEGlobalSettings::generalFont().family());
        fonts.append(TDEGlobalSettings::fixedFont().family());
        fonts.append(TDEGlobalSettings::generalFont().family());
        fonts.append(TDEGlobalSettings::generalFont().family());
        fonts.append("0");
    }
    Settings::setFonts(fonts);
    if (Settings::standardFont().isEmpty())
        Settings::setStandardFont(fonts[0]);
    if (Settings::fixedFont().isEmpty())
        Settings::setFixedFont(fonts[1]);
    if (Settings::sansSerifFont().isEmpty())
        Settings::setSansSerifFont(fonts[2]);
    if (Settings::serifFont().isEmpty())
        Settings::setSerifFont(fonts[3]);

    TDEConfig* conf = Settings::self()->config();
    conf->setGroup("HTML Settings");

    TDEConfig konq("konquerorrc", true, false);
    konq.setGroup("HTML Settings");

    if (!conf->hasKey("MinimumFontSize"))
    {
        int minfs;
        if (konq.hasKey("MinimumFontSize"))
            minfs = konq.readNumEntry("MinimumFontSize");
        else
            minfs = TDEGlobalSettings::generalFont().pointSize();
        kdDebug() << "Part::initFonts(): set MinimumFontSize to " << minfs << endl;
        Settings::setMinimumFontSize(minfs);
    }

    if (!conf->hasKey("MediumFontSize"))
    {
        int medfs;
        if (konq.hasKey("MediumFontSize"))
            medfs = konq.readNumEntry("MediumFontSize");
        else
            medfs = TDEGlobalSettings::generalFont().pointSize();
        kdDebug() << "Part::initFonts(): set MediumFontSize to " << medfs << endl;
        Settings::setMediumFontSize(medfs);
    }

    if (!conf->hasKey("UnderlineLinks"))
    {
        bool underline = true;
        if (konq.hasKey("UnderlineLinks"))
            underline = konq.readBoolEntry("UnderlineLinks");

        kdDebug() << "Part::initFonts(): set UnderlineLinks to " << underline << endl;
        Settings::setUnderlineLinks(underline);
    }

    if (!conf->hasKey("EnableFavicon"))
    {
        bool enableFavicon = true;
        if (konq.hasKey("EnableFavicon"))
            enableFavicon = konq.readBoolEntry("EnableFavicon");

        kdDebug() << "Part::initFonts(): set EnableFavicon to " << enableFavicon << endl;
        Settings::setEnableFavIcon(enableFavicon);
    }

    if (!conf->hasKey("AutoLoadImages"))
    {
        bool autoLoadImages = true;
        if (konq.hasKey("AutoLoadImages"))
            autoLoadImages = konq.readBoolEntry("AutoLoadImages");

        kdDebug() << "Part::initFonts(): set AutoLoadImages to " << autoLoadImages << endl;
        Settings::setAutoLoadImages(autoLoadImages);
    }

}

bool Part::copyFile(const TQString& backup)
{
    TQFile file(m_file);

    if (file.open(IO_ReadOnly))
    {
        TQFile backupFile(backup);
        if (backupFile.open(IO_WriteOnly))
        {
            TQTextStream in(&file);
            TQTextStream out(&backupFile);
            while (!in.atEnd())
                out << in.readLine();
            backupFile.close();
            file.close();
            return true;
        }
        else
        {
            file.close();
            return false;
        }
    }
    return false;
}

static TQString getMyHostName()
{
    char hostNameC[256];
    // null terminate this C string
    hostNameC[255] = 0;
    // set the string to 0 length if gethostname fails
    if(gethostname(hostNameC, 255))
        hostNameC[0] = 0;
    return TQString::fromLocal8Bit(hostNameC);
}

// taken from KMail
bool Part::tryToLock(const TQString& backendName)
{
// Check and create a lock file to prevent concurrent access to metakit archive
    TQString appName = kapp->instanceName();
    if ( appName.isEmpty() )
        appName = "akregator";

    TQString programName;
    const TDEAboutData *about = kapp->aboutData();
    if ( about )
        programName = about->programName();
    if ( programName.isEmpty() )
        programName = i18n("Akregator");

    TQString lockLocation = locateLocal("data", "akregator/lock");
    KSimpleConfig config(lockLocation);
    int oldPid = config.readNumEntry("pid", -1);
    const TQString oldHostName = config.readEntry("hostname");
    const TQString oldAppName = config.readEntry( "appName", appName );
    const TQString oldProgramName = config.readEntry( "programName", programName );
    const TQString hostName = getMyHostName();
    bool first_instance = false;
    if ( oldPid == -1 )
        first_instance = true;
  // check if the lock file is stale by trying to see if
  // the other pid is currently running.
  // Not 100% correct but better safe than sorry
    else if (hostName == oldHostName && oldPid != getpid()) {
        if ( kill(oldPid, 0) == -1 )
            first_instance = ( errno == ESRCH );
    }

    if ( !first_instance )
    {
        TQString msg;
        if ( oldHostName == hostName ) 
        {
            // this can only happen if the user is running this application on
            // different displays on the same machine. All other cases will be
            // taken care of by KUniqueApplication()
            if ( oldAppName == appName )
                msg = i18n("<qt>%1 already seems to be running on another display on "
                        "this machine. <b>Running %2 more than once is not supported "
                        "by the %3 backend and "
                        "can cause the loss of archived articles and crashes at startup.</b> "
                        "You should disable the archive for now "
                        "unless you are sure that %2 is not already running.</qt>")
                        .arg( programName, programName, backendName );
              // TQString::arg( st ) only replaces the first occurrence of %1
              // with st while TQString::arg( s1, s2 ) replacess all occurrences
              // of %1 with s1 and all occurrences of %2 with s2. So don't
              // even think about changing the above to .arg( programName ).
            else
                msg = i18n("<qt>%1 seems to be running on another display on this "
                        "machine. <b>Running %1 and %2 at the same "
                        "time is not supported by the %3 backend and can cause "
                        "the loss of archived articles and crashes at startup.</b> "
                        "You should disable the archive for now "
                        "unless you are sure that %2 is not already running.</qt>")
                        .arg( oldProgramName, programName, backendName );
        }
        else
        {
            if ( oldAppName == appName )
                msg = i18n("<qt>%1 already seems to be running on %2. <b>Running %1 more "
                        "than once is not supported by the %3 backend and can cause "
                        "the loss of archived articles and crashes at startup.</b> "
                        "You should disable the archive for now "
                        "unless you are sure that it is "
                        "not already running on %2.</qt>")
                        .arg( programName, oldHostName, backendName );
            else
                msg = i18n("<qt>%1 seems to be running on %3. <b>Running %1 and %2 at the "
                        "same time is not supported by the %4 backend and can cause "
                        "the loss of archived articles and crashes at startup.</b> "
                        "You should disable the archive for now "
                        "unless you are sure that %1 is "
                        "not running on %3.</qt>")
                        .arg( oldProgramName, programName, oldHostName, backendName );
        }

        KCursorSaver idle( KBusyPtr::idle() );
        if ( KMessageBox::No ==
             KMessageBox::warningYesNo( 0, msg, TQString(),
                                        i18n("Force Access"),
                                        i18n("Disable Archive")) )
                                        {
                                            return false;
                                        }
    }

    config.writeEntry("pid", getpid());
    config.writeEntry("hostname", hostName);
    config.writeEntry( "appName", appName );
    config.writeEntry( "programName", programName );
    config.sync();
    return true;
}


} // namespace Akregator
#include "akregator_part.moc"