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00023 #include <assert.h>
00024
00025 #include <qshared.h>
00026 #include <qdict.h>
00027
00028 #include <ktrader.h>
00029 #include <kstaticdeleter.h>
00030 #include <kparts/componentfactory.h>
00031 #include <kuserprofile.h>
00032 #include <kdebug.h>
00033 #include <kmimetype.h>
00034 #include <kdatastream.h>
00035 #include <klocale.h>
00036 #include <kio/global.h>
00037
00038 #include "kfilemetainfo.h"
00039
00040
00041 class KFileMetaInfoItem::Data : public QShared
00042 {
00043 public:
00044 Data( const KFileMimeTypeInfo::ItemInfo* mti, const QString& _key,
00045 const QVariant& _value )
00046 : QShared(),
00047 mimeTypeInfo( mti ),
00048 key( _key ),
00049 value( _value ),
00050 dirty( false ),
00051 added( false ),
00052 removed( false )
00053 {}
00054
00055
00056 Data() : mimeTypeInfo( 0L )
00057 {}
00058
00059 ~Data()
00060 {
00061 if ( this == null )
00062 delete mimeTypeInfo;
00063 }
00064
00065 const KFileMimeTypeInfo::ItemInfo* mimeTypeInfo;
00066
00067 QString key;
00068 QVariant value;
00069 bool dirty :1;
00070 bool added :1;
00071 bool removed :1;
00072
00073 static Data* null;
00074 static Data* makeNull();
00075 };
00076
00077
00078 KFileMetaInfoItem::Data* KFileMetaInfoItem::Data::null = 0L;
00079 static KStaticDeleter<KFileMetaInfoItem::Data> sd_KFileMetaInfoItemData;
00080
00081 KFileMetaInfoItem::Data* KFileMetaInfoItem::Data::makeNull()
00082 {
00083 if (!null)
00084 {
00085
00086
00087
00088
00089 KFileMimeTypeInfo::ItemInfo* info = new KFileMimeTypeInfo::ItemInfo();
00090 null = new Data(info, QString::null, QVariant());
00091 sd_KFileMetaInfoItemData.setObject( null );
00092 }
00093 return null;
00094 }
00095
00096 KFileMetaInfoItem::KFileMetaInfoItem( const KFileMimeTypeInfo::ItemInfo* mti,
00097 const QString& key, const QVariant& value )
00098 : d( new Data( mti, key, value ) )
00099 {
00100 }
00101
00102 KFileMetaInfoItem::KFileMetaInfoItem( const KFileMetaInfoItem& item )
00103 {
00104
00105 d = Data::makeNull();
00106 *this = item;
00107 }
00108
00109 KFileMetaInfoItem::KFileMetaInfoItem()
00110 {
00111 d = Data::makeNull();
00112 }
00113
00114 KFileMetaInfoItem::~KFileMetaInfoItem()
00115 {
00116 deref();
00117 }
00118
00119 const KFileMetaInfoItem& KFileMetaInfoItem::operator=
00120 (const KFileMetaInfoItem & item )
00121 {
00122 if (d != item.d)
00123 {
00124
00125 deref();
00126 d = item.d;
00127
00128 ref();
00129 }
00130
00131 return *this;
00132 }
00133
00134 bool KFileMetaInfoItem::setValue( const QVariant& value )
00135 {
00136
00137 if ( d == Data::null ) return false;
00138
00139 if ( ! (d->mimeTypeInfo->attributes() & KFileMimeTypeInfo::Modifiable ) ||
00140 ! (value.canCast(d->mimeTypeInfo->type())))
00141 {
00142 kdDebug(7033) << "setting the value of " << key() << "failed\n";
00143 return false;
00144 }
00145
00146
00147
00148 if ( d->value == value )
00149 return true;
00150
00151 d->dirty = true;
00152 d->value = value;
00153
00154
00155 d->value.cast(d->mimeTypeInfo->type());
00156
00157 return true;
00158 }
00159
00160 bool KFileMetaInfoItem::isRemoved() const
00161 {
00162 return d->removed;
00163 }
00164
00165 QString KFileMetaInfoItem::key() const
00166 {
00167 return d->key;
00168 }
00169
00170 QString KFileMetaInfoItem::translatedKey() const
00171 {
00172
00173 if (d->mimeTypeInfo->key().isNull())
00174 {
00175
00176 return i18n(d->key.utf8());
00177 }
00178
00179 return d->mimeTypeInfo->translatedKey();
00180 }
00181
00182 const QVariant& KFileMetaInfoItem::value() const
00183 {
00184 return d->value;
00185 }
00186
00187 QString KFileMetaInfoItem::string( bool mangle ) const
00188 {
00189 return d->mimeTypeInfo->string(d->value, mangle);
00190 }
00191
00192 QVariant::Type KFileMetaInfoItem::type() const
00193 {
00194 return d->mimeTypeInfo->type();
00195 }
00196
00197 uint KFileMetaInfoItem::unit() const
00198 {
00199 return d->mimeTypeInfo->unit();
00200 }
00201
00202 bool KFileMetaInfoItem::isModified() const
00203 {
00204 return d->dirty;
00205 }
00206
00207 QString KFileMetaInfoItem::prefix() const
00208 {
00209 return d->mimeTypeInfo->prefix();
00210 }
00211
00212 QString KFileMetaInfoItem::suffix() const
00213 {
00214 return d->mimeTypeInfo->suffix();
00215 }
00216
00217 uint KFileMetaInfoItem::hint() const
00218 {
00219 return d->mimeTypeInfo->hint();
00220 }
00221
00222 uint KFileMetaInfoItem::attributes() const
00223 {
00224 return d->mimeTypeInfo->attributes();
00225 }
00226
00227 bool KFileMetaInfoItem::isEditable() const
00228 {
00229 return d->mimeTypeInfo->attributes() & KFileMimeTypeInfo::Modifiable;
00230 }
00231
00232 bool KFileMetaInfoItem::isValid() const
00233 {
00234
00235
00236
00237 return d != Data::null;
00238 }
00239
00240 void KFileMetaInfoItem::setAdded()
00241 {
00242 d->added = true;
00243 }
00244
00245 void KFileMetaInfoItem::setRemoved()
00246 {
00247 d->removed = true;
00248 }
00249
00250 void KFileMetaInfoItem::ref()
00251 {
00252 if (d != Data::null) d->ref();
00253 }
00254
00255 void KFileMetaInfoItem::deref()
00256 {
00257
00258
00259
00260 if ((d != Data::null) && d->deref())
00261 {
00262
00263
00264 delete d;
00265 d = 0;
00266 }
00267 }
00268
00271
00272
00273 class KFileMetaInfo::Data : public QShared
00274 {
00275 public:
00276 Data(const KURL& _url, uint _what)
00277 : QShared(),
00278 url(_url),
00279 what(_what),
00280 mimeTypeInfo( 0L )
00281 {}
00282
00283
00284 Data() {};
00285
00286 KURL url;
00287 uint what;
00288 QMap<QString, KFileMetaInfoGroup> groups;
00289 const KFileMimeTypeInfo* mimeTypeInfo;
00290 QStringList removedGroups;
00291
00292 static Data* null;
00293 static Data* makeNull();
00294
00295 };
00296
00297 KFileMetaInfo::KFileMetaInfo( const QString& path, const QString& mimeType,
00298 uint what )
00299 {
00300 KURL u;
00301
00302 u.setPath(path);
00303 init(u, mimeType, what);
00304 }
00305
00306 KFileMetaInfo::KFileMetaInfo( const KURL& url, const QString& mimeType,
00307 uint what )
00308 {
00309 init(url, mimeType, what);
00310 }
00311
00312 void KFileMetaInfo::init( const KURL& url, const QString& mimeType,
00313 uint what )
00314 {
00315 d = new Data( url, what );
00316
00317 QString mT;
00318 if (mimeType.isEmpty())
00319 mT = KMimeType::findByURL(url)->name();
00320 else
00321 mT = mimeType;
00322
00323
00324 KFileMetaInfo item(*this);
00325
00326
00327
00328 d->mimeTypeInfo = KFileMetaInfoProvider::self()->mimeTypeInfo( mT, url.protocol() );
00329 if ( d->mimeTypeInfo )
00330 {
00331
00332 KFilePlugin *p = plugin();
00333 Q_ASSERT( p );
00334 if ( p && !p->readInfo( item, what) )
00335 {
00336 deref();
00337 d = Data::makeNull();
00338 }
00339 }
00340 else
00341 {
00342
00343 deref();
00344 d = Data::makeNull();
00345 }
00346 }
00347
00348 KFileMetaInfo::KFileMetaInfo( const KFileMetaInfo& original )
00349 {
00350
00351 d = Data::makeNull();
00352 *this = original;
00353 }
00354
00355 KFileMetaInfo::KFileMetaInfo()
00356 {
00357 d = Data::makeNull();
00358 }
00359
00360 KFileMetaInfo::~KFileMetaInfo()
00361 {
00362 deref();
00363 }
00364
00365 QStringList KFileMetaInfo::supportedGroups() const
00366 {
00367 assert(isValid());
00368 return d->mimeTypeInfo->supportedGroups();
00369 }
00370
00371 QStringList KFileMetaInfo::supportedKeys() const
00372 {
00373 assert(isValid());
00374 return d->mimeTypeInfo->supportedKeys();
00375 }
00376
00377 QStringList KFileMetaInfo::groups() const
00378 {
00379 QStringList list;
00380 QMapConstIterator<QString, KFileMetaInfoGroup> it = d->groups.begin();
00381 for ( ; it != d->groups.end(); ++it )
00382 list += (*it).name();
00383
00384 return list;
00385 }
00386
00387 QStringList KFileMetaInfo::editableGroups() const
00388 {
00389 QStringList list;
00390 QStringList supported = supportedGroups();
00391 QStringList::ConstIterator it = supported.begin();
00392 for ( ; it != supported.end(); ++it ) {
00393 const KFileMimeTypeInfo::GroupInfo * groupInfo = d->mimeTypeInfo->groupInfo( *it );
00394 if ( groupInfo && groupInfo->attributes() &
00395 (KFileMimeTypeInfo::Addable | KFileMimeTypeInfo::Removable) )
00396 list.append( *it );
00397 }
00398
00399 return list;
00400 }
00401
00402 QStringList KFileMetaInfo::preferredGroups() const
00403 {
00404 assert(isValid());
00405 QStringList list = groups();
00406 QStringList newlist;
00407 QStringList preferred = d->mimeTypeInfo->preferredGroups();
00408 QStringList::Iterator pref;
00409
00410
00411 for ( pref = preferred.begin(); pref != preferred.end(); ++pref )
00412 {
00413 QStringList::Iterator group = list.find(*pref);
00414 if ( group != list.end() )
00415 {
00416 newlist.append( *group );
00417 list.remove(group);
00418 }
00419 }
00420
00421
00422
00423 newlist += list;
00424
00425 return newlist;
00426 }
00427
00428 QStringList KFileMetaInfo::preferredKeys() const
00429 {
00430 QStringList newlist;
00431
00432 QStringList list = preferredGroups();
00433 for (QStringList::Iterator git = list.begin(); git != list.end(); ++git)
00434 {
00435 newlist += d->groups[*git].preferredKeys();
00436 }
00437
00438 return newlist;
00439 }
00440
00441 KFileMetaInfoGroup KFileMetaInfo::group(const QString& key) const
00442 {
00443 QMapIterator<QString,KFileMetaInfoGroup> it = d->groups.find( key );
00444 if ( it != d->groups.end() )
00445 return it.data();
00446 else
00447 return KFileMetaInfoGroup();
00448 }
00449
00450 bool KFileMetaInfo::addGroup( const QString& name )
00451 {
00452 assert(isValid());
00453 if ( d->mimeTypeInfo->supportedGroups().contains(name) &&
00454 ! d->groups.contains(name) )
00455 {
00456 KFileMetaInfoGroup group( name, d->mimeTypeInfo );
00457
00458
00459 const KFileMimeTypeInfo::GroupInfo* ginfo = d->mimeTypeInfo->groupInfo(name);
00460 Q_ASSERT(ginfo);
00461 if (!ginfo) return false;
00462
00463 QStringList keys = ginfo->supportedKeys();
00464 for (QStringList::Iterator it = keys.begin(); it != keys.end(); ++it)
00465 {
00466 const KFileMimeTypeInfo::ItemInfo* iteminfo = ginfo->itemInfo(*it);
00467 Q_ASSERT(ginfo);
00468 if (!iteminfo) return false;
00469
00470 if ( !(iteminfo->attributes() & KFileMimeTypeInfo::Addable) &&
00471 (iteminfo->attributes() & KFileMimeTypeInfo::Modifiable))
00472 {
00473
00474 group.appendItem(iteminfo->key(), QVariant());
00475 }
00476
00477 }
00478
00479 d->groups.insert(name, group);
00480 group.setAdded();
00481 return true;
00482 }
00483
00484 return false;
00485 }
00486
00487 bool KFileMetaInfo::removeGroup( const QString& name )
00488 {
00489 QMapIterator<QString, KFileMetaInfoGroup> it = d->groups.find(name);
00490 if ( (it==d->groups.end()) ||
00491 !((*it).attributes() & KFileMimeTypeInfo::Removable))
00492 return false;
00493
00494 d->groups.remove(it);
00495 d->removedGroups.append(name);
00496 return true;
00497 }
00498
00499 QStringList KFileMetaInfo::removedGroups()
00500 {
00501 return d->removedGroups;
00502 }
00503
00504 const KFileMetaInfo& KFileMetaInfo::operator= (const KFileMetaInfo& info )
00505 {
00506 if (d != info.d)
00507 {
00508 deref();
00509
00510 d = info.d;
00511
00512 ref();
00513 }
00514 return *this;
00515 }
00516
00517 bool KFileMetaInfo::isValid() const
00518 {
00519
00520 return d != Data::null;
00521 }
00522
00523 bool KFileMetaInfo::isEmpty() const
00524 {
00525 for (QMapIterator<QString, KFileMetaInfoGroup> it = d->groups.begin();
00526 it!=d->groups.end(); ++it)
00527 if (!(*it).isEmpty())
00528 return false;
00529 return true;
00530 }
00531
00532 bool KFileMetaInfo::applyChanges()
00533 {
00534 return applyChanges( path() );
00535 }
00536
00537 bool KFileMetaInfo::applyChanges( const QString& path )
00538 {
00539 bool doit = false;
00540
00541
00542
00543
00544 QMapConstIterator<QString, KFileMetaInfoGroup> it;
00545 for (it = d->groups.begin(); it!=d->groups.end() && !doit; ++it)
00546 {
00547 if ( (*it).isModified() )
00548 doit = true;
00549
00550 else
00551 {
00552 QStringList keys = it.data().keys();
00553 for (QStringList::Iterator it2 = keys.begin(); it2!=keys.end(); ++it2)
00554 {
00555 if ( (*it)[*it2].isModified() )
00556 {
00557 doit = true;
00558 break;
00559 }
00560 }
00561 }
00562 }
00563
00564 if (!doit)
00565 {
00566 kdDebug(7033) << "Don't need to write, nothing changed\n";
00567 return true;
00568 }
00569
00570 KFilePlugin* p = plugin();
00571 if (!p) return false;
00572
00573
00574
00575 KURL savedURL = url();
00576 d->url = KURL();
00577 d->url.setPath( path );
00578
00579 bool ret = p->writeInfo(*this);
00580
00581 d->url = savedURL;
00582 return ret;
00583 }
00584
00585 KFilePlugin * const KFileMetaInfo::plugin() const
00586 {
00587 assert(isValid());
00588 KFileMetaInfoProvider* prov = KFileMetaInfoProvider::self();
00589 return prov->plugin( d->mimeTypeInfo->mimeType(), d->url.protocol() );
00590 }
00591
00592 QString KFileMetaInfo::mimeType() const
00593 {
00594 assert(isValid());
00595 return d->mimeTypeInfo->mimeType();
00596 }
00597
00598 bool KFileMetaInfo::contains(const QString& key) const
00599 {
00600 QStringList glist = groups();
00601 for (QStringList::Iterator it = glist.begin(); it != glist.end(); ++it)
00602 {
00603 KFileMetaInfoGroup g = d->groups[*it];
00604 if (g.contains(key)) return true;
00605 }
00606 return false;
00607 }
00608
00609 bool KFileMetaInfo::containsGroup(const QString& key) const
00610 {
00611 return groups().contains(key);
00612 }
00613
00614 KFileMetaInfoItem KFileMetaInfo::item( const QString& key) const
00615 {
00616 QStringList groups = preferredGroups();
00617 for (QStringList::Iterator it = groups.begin(); it != groups.end(); ++it)
00618 {
00619 KFileMetaInfoItem i = d->groups[*it][key];
00620 if (i.isValid()) return i;
00621 }
00622 return KFileMetaInfoItem();
00623 }
00624
00625 KFileMetaInfoItem KFileMetaInfo::item(const KFileMetaInfoItem::Hint hint) const
00626 {
00627 QStringList groups = preferredGroups();
00628 QStringList::ConstIterator it;
00629 for (it = groups.begin(); it != groups.end(); ++it)
00630 {
00631 KFileMetaInfoItem i = d->groups[*it].item(hint);
00632 if (i.isValid()) return i;
00633 }
00634 return KFileMetaInfoItem();
00635 }
00636
00637 KFileMetaInfoItem KFileMetaInfo::saveItem( const QString& key,
00638 const QString& preferredGroup,
00639 bool createGroup )
00640 {
00641 assert(isValid());
00642
00643 if ( !preferredGroup.isEmpty() ) {
00644 QMapIterator<QString,KFileMetaInfoGroup> it =
00645 d->groups.find( preferredGroup );
00646
00647
00648 if ( it == d->groups.end() && createGroup ) {
00649 const KFileMimeTypeInfo::GroupInfo *groupInfo =
00650 d->mimeTypeInfo->groupInfo( preferredGroup );
00651 if ( groupInfo && groupInfo->supportedKeys().contains( key ) ) {
00652 if ( addGroup( preferredGroup ) )
00653 it = d->groups.find( preferredGroup );
00654 }
00655 }
00656
00657 if ( it != d->groups.end() ) {
00658 KFileMetaInfoItem item = it.data().addItem( key );
00659 if ( item.isValid() )
00660 return item;
00661 }
00662 }
00663
00664 QStringList groups = preferredGroups();
00665
00666 KFileMetaInfoItem item;
00667
00668 QStringList::ConstIterator groupIt = groups.begin();
00669 for ( ; groupIt != groups.end(); ++groupIt )
00670 {
00671 QMapIterator<QString,KFileMetaInfoGroup> it = d->groups.find( *groupIt );
00672 if ( it != d->groups.end() )
00673 {
00674 KFileMetaInfoGroup group = it.data();
00675 item = findEditableItem( group, key );
00676 if ( item.isValid() )
00677 return item;
00678 }
00679 else
00680 {
00681 const KFileMimeTypeInfo::GroupInfo *groupInfo =
00682 d->mimeTypeInfo->groupInfo( *groupIt );
00683 if ( groupInfo && groupInfo->supportedKeys().contains( key ) )
00684 {
00685 if ( addGroup( *groupIt ) )
00686 {
00687 KFileMetaInfoGroup group = d->groups[*groupIt];
00688 KFileMetaInfoItem item = group.addItem( key );
00689 if ( item.isValid() )
00690 return item;
00691
00692
00693 }
00694 }
00695 }
00696 }
00697
00698
00699
00700 return item;
00701 }
00702
00703 KFileMetaInfoItem KFileMetaInfo::findEditableItem( KFileMetaInfoGroup& group,
00704 const QString& key )
00705 {
00706 assert(isValid());
00707 KFileMetaInfoItem item = group.addItem( key );
00708 if ( item.isValid() && item.isEditable() )
00709 return item;
00710
00711 if ( (d->mimeTypeInfo->groupInfo( group.name() )->attributes() & KFileMimeTypeInfo::Addable) )
00712 return item;
00713
00714 return KFileMetaInfoItem();
00715 }
00716
00717 KFileMetaInfoGroup KFileMetaInfo::appendGroup(const QString& name)
00718 {
00719 assert(isValid());
00720 if ( d->mimeTypeInfo->supportedGroups().contains(name) &&
00721 ! d->groups.contains(name) )
00722 {
00723 KFileMetaInfoGroup group( name, d->mimeTypeInfo );
00724 d->groups.insert(name, group);
00725 return group;
00726 }
00727
00728 else {
00729 kdWarning(7033) << "Someone's trying to add a KFileMetaInfoGroup which is not supported or already existing: " << name << endl;
00730 return KFileMetaInfoGroup();
00731 }
00732 }
00733
00734 QString KFileMetaInfo::path() const
00735 {
00736 return d->url.isLocalFile() ? d->url.path() : QString::null;
00737 }
00738
00739 KURL KFileMetaInfo::url() const
00740 {
00741 return d->url;
00742 }
00743
00744 void KFileMetaInfo::ref()
00745 {
00746 if (d != Data::null) d->ref();
00747
00748 }
00749
00750 void KFileMetaInfo::deref()
00751 {
00752
00753
00754
00755 if ((d != Data::null) && d->deref())
00756 {
00757
00758 delete d;
00759 d = 0;
00760 }
00761
00762 }
00763
00764
00765 KFileMetaInfo::Data* KFileMetaInfo::Data::null = 0L;
00766 static KStaticDeleter<KFileMetaInfo::Data> sd_KFileMetaInfoData;
00767
00768 KFileMetaInfo::Data* KFileMetaInfo::Data::makeNull()
00769 {
00770 if (!null)
00771
00772
00773
00774 null = sd_KFileMetaInfoData.setObject( new KFileMetaInfo::Data(KURL(), 0) );
00775 return null;
00776 }
00777
00780
00781 KFilePlugin::KFilePlugin( QObject *parent, const char *name,
00782 const QStringList& )
00783 : QObject( parent, name )
00784 {
00785
00786 }
00787
00788 KFilePlugin::~KFilePlugin()
00789 {
00790
00791 }
00792
00793 KFileMimeTypeInfo * KFilePlugin::addMimeTypeInfo( const QString& mimeType )
00794 {
00795 return KFileMetaInfoProvider::self()->addMimeTypeInfo( mimeType );
00796 }
00797
00798 void KFilePlugin::virtual_hook( int, void* )
00799 { }
00800
00801
00802 KFileMimeTypeInfo::GroupInfo* KFilePlugin::addGroupInfo(KFileMimeTypeInfo* info,
00803 const QString& key, const QString& translatedKey) const
00804 {
00805 return info->addGroupInfo(key, translatedKey);
00806 }
00807
00808 void KFilePlugin::setAttributes(KFileMimeTypeInfo::GroupInfo* gi, uint attr) const
00809 {
00810 gi->m_attr = attr;
00811 }
00812
00813 void KFilePlugin::addVariableInfo(KFileMimeTypeInfo::GroupInfo* gi,
00814 QVariant::Type type, uint attr) const
00815 {
00816 gi->addVariableInfo(type, attr);
00817 }
00818
00819 KFileMimeTypeInfo::ItemInfo* KFilePlugin::addItemInfo(KFileMimeTypeInfo::GroupInfo* gi,
00820 const QString& key,
00821 const QString& translatedKey,
00822 QVariant::Type type)
00823 {
00824 return gi->addItemInfo(key, translatedKey, type);
00825 }
00826
00827 void KFilePlugin::setAttributes(KFileMimeTypeInfo::ItemInfo* item, uint attr)
00828 {
00829 item->m_attr = attr;
00830 }
00831
00832 void KFilePlugin::setHint(KFileMimeTypeInfo::ItemInfo* item, uint hint)
00833 {
00834 item->m_hint = hint;
00835 }
00836
00837 void KFilePlugin::setUnit(KFileMimeTypeInfo::ItemInfo* item, uint unit)
00838 {
00839 item->m_unit = unit;
00840
00841 switch (unit)
00842 {
00843 case KFileMimeTypeInfo::Seconds:
00844 item->m_suffix = i18n("s"); break;
00845
00846 case KFileMimeTypeInfo::MilliSeconds:
00847 item->m_suffix = i18n("ms"); break;
00848
00849 case KFileMimeTypeInfo::BitsPerSecond:
00850 item->m_suffix = i18n("bps"); break;
00851
00852 case KFileMimeTypeInfo::Pixels:
00853 item->m_suffix = i18n("pixels"); break;
00854
00855 case KFileMimeTypeInfo::Inches:
00856 item->m_suffix = i18n("in"); break;
00857
00858 case KFileMimeTypeInfo::Centimeters:
00859 item->m_suffix = i18n("cm"); break;
00860
00861 case KFileMimeTypeInfo::Bytes:
00862 item->m_suffix = i18n("B"); break;
00863
00864 case KFileMimeTypeInfo::KiloBytes:
00865 item->m_suffix = i18n("KB"); break;
00866
00867 case KFileMimeTypeInfo::FramesPerSecond:
00868 item->m_suffix = i18n("fps"); break;
00869
00870 case KFileMimeTypeInfo::DotsPerInch:
00871 item->m_suffix = i18n("dpi"); break;
00872
00873 case KFileMimeTypeInfo::BitsPerPixel:
00874 item->m_suffix = i18n("bpp"); break;
00875
00876 case KFileMimeTypeInfo::Hertz:
00877 item->m_suffix = i18n("Hz"); break;
00878
00879 case KFileMimeTypeInfo::Millimeters:
00880 item->m_suffix = i18n("mm");
00881 }
00882 }
00883
00884 void KFilePlugin::setPrefix(KFileMimeTypeInfo::ItemInfo* item, const QString& prefix)
00885 {
00886 item->m_prefix = prefix;
00887 }
00888
00889 void KFilePlugin::setSuffix(KFileMimeTypeInfo::ItemInfo* item, const QString& suffix)
00890 {
00891 item->m_suffix = suffix;
00892 }
00893
00894 KFileMetaInfoGroup KFilePlugin::appendGroup(KFileMetaInfo& info, const QString& key)
00895 {
00896 return info.appendGroup(key);
00897 }
00898
00899 void KFilePlugin::appendItem(KFileMetaInfoGroup& group, const QString& key, QVariant value)
00900 {
00901 group.appendItem(key, value);
00902 }
00903
00906
00907
00908 KFileMetaInfoProvider * KFileMetaInfoProvider::s_self;
00909 static KStaticDeleter<KFileMetaInfoProvider> sd;
00910
00911 KFileMetaInfoProvider * KFileMetaInfoProvider::self()
00912 {
00913 if ( !s_self )
00914 s_self = sd.setObject( s_self, new KFileMetaInfoProvider() );
00915
00916 return s_self;
00917 }
00918
00919 KFileMetaInfoProvider::KFileMetaInfoProvider()
00920 {
00921 m_plugins.setAutoDelete( true );
00922 }
00923
00924 KFileMetaInfoProvider::~KFileMetaInfoProvider()
00925 {
00926 m_plugins.clear();
00927 sd.setObject( 0 );
00928 }
00929
00930 KFilePlugin* KFileMetaInfoProvider::loadPlugin( const QString& mimeType, const QString& protocol )
00931 {
00932
00933
00934
00935 QString queryMimeType, query;
00936 if ( !mimeType.isEmpty() ) {
00937 query = "(not exist [X-KDE-Protocol])";
00938 queryMimeType = mimeType;
00939 } else {
00940 query = QString::fromLatin1( "[X-KDE-Protocol] == '%1'" ).arg(protocol);
00941
00942 queryMimeType = "KFilePlugin";
00943
00944 }
00945 const KTrader::OfferList offers = KTrader::self()->query( queryMimeType, "KFilePlugin", query, QString::null );
00946 if ( offers.isEmpty() )
00947 return 0;
00948 KService::Ptr service = *(offers.begin());
00949 Q_ASSERT( service && service->isValid() );
00950 if ( !service || !service->isValid() )
00951 return 0;
00952
00953 KFilePlugin* plugin = KParts::ComponentFactory::createInstanceFromService<KFilePlugin>
00954 ( service, this, mimeType.local8Bit() );
00955 if (!plugin)
00956 kdWarning(7033) << "error loading the plugin from " << service->desktopEntryPath() << endl;
00957
00958 return plugin;
00959 }
00960
00961 KFilePlugin* KFileMetaInfoProvider::loadAndRegisterPlugin( const QString& mimeType, const QString& protocol )
00962 {
00963 Q_ASSERT( m_pendingMimetypeInfos.isEmpty() );
00964 m_pendingMimetypeInfos.clear();
00965
00966 KFilePlugin* plugin = loadPlugin( mimeType, protocol );
00967 if ( !plugin ) {
00968
00969 m_plugins.insert( protocol.isEmpty() ? mimeType : protocol, new CachedPluginInfo );
00970 return 0;
00971 }
00972
00973 if ( !protocol.isEmpty() ) {
00974
00975 Q_ASSERT( m_pendingMimetypeInfos.count() == 1 );
00976 KFileMimeTypeInfo* info = m_pendingMimetypeInfos[ protocol ];
00977 Q_ASSERT( info );
00978 m_plugins.insert( protocol, new CachedPluginInfo( plugin, info, true ) );
00979 } else {
00980
00981 bool first = true;
00982 QDictIterator<KFileMimeTypeInfo> it( m_pendingMimetypeInfos );
00983 for( ; it.current(); ++it ) {
00984 KFileMimeTypeInfo* info = it.current();
00985 m_plugins.insert( it.currentKey(), new CachedPluginInfo( plugin, info, first ) );
00986 first = false;
00987 }
00988
00989 if ( m_pendingMimetypeInfos.find( mimeType ) == 0 )
00990 kdWarning(7033) << plugin->className() << " was created for " << mimeType << " but doesn't call addMimeTypeInfo for it!" << endl;
00991 }
00992 m_pendingMimetypeInfos.clear();
00993 return plugin;
00994 }
00995
00996 KFilePlugin * KFileMetaInfoProvider::plugin(const QString& mimeType)
00997 {
00998 return plugin( mimeType, QString::null );
00999 }
01000
01001 KFilePlugin * KFileMetaInfoProvider::plugin(const QString& mimeType, const QString& protocol)
01002 {
01003
01004
01005 if ( !protocol.isEmpty() ) {
01006 CachedPluginInfo *cache = m_plugins.find( protocol );
01007 if ( cache && cache->plugin ) {
01008 return cache->plugin;
01009 }
01010 if ( !cache ) {
01011 KFilePlugin* plugin = loadAndRegisterPlugin( QString::null, protocol );
01012 if ( plugin )
01013 return plugin;
01014 }
01015 }
01016
01017 CachedPluginInfo *cache = m_plugins.find( mimeType );
01018 if ( cache ) {
01019 return cache-&g