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akonadi

collectionpathresolver.cpp

00001 /*
00002     Copyright (c) 2007 Volker Krause <vkrause@kde.org>
00003 
00004     This library is free software; you can redistribute it and/or modify it
00005     under the terms of the GNU Library General Public License as published by
00006     the Free Software Foundation; either version 2 of the License, or (at your
00007     option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful, but WITHOUT
00010     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00011     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
00012     License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public License
00015     along with this library; see the file COPYING.LIB.  If not, write to the
00016     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
00017     02110-1301, USA.
00018 */
00019 
00020 #include "collectionpathresolver_p.h"
00021 
00022 #include "collectionfetchjob.h"
00023 #include "job_p.h"
00024 
00025 #include <klocale.h>
00026 
00027 #include <QtCore/QStringList>
00028 
00029 using namespace Akonadi;
00030 
00031 //@cond PRIVATE
00032 
00033 class Akonadi::CollectionPathResolverPrivate : public JobPrivate
00034 {
00035   public:
00036     CollectionPathResolverPrivate( CollectionPathResolver *parent )
00037       : JobPrivate( parent )
00038     {
00039     }
00040 
00041     void jobResult( KJob* );
00042 
00043     Q_DECLARE_PUBLIC( CollectionPathResolver )
00044 
00045     Collection::Id mColId;
00046     QString mPath;
00047     bool mPathToId;
00048     QStringList mPathParts;
00049     Collection mCurrentNode;
00050 };
00051 
00052 void CollectionPathResolverPrivate::jobResult(KJob *job )
00053 {
00054   if ( job->error() )
00055     return;
00056 
00057   Q_Q( CollectionPathResolver );
00058 
00059   CollectionFetchJob *list = static_cast<CollectionFetchJob*>( job );
00060   CollectionFetchJob *nextJob = 0;
00061   const Collection::List cols = list->collections();
00062   if ( cols.isEmpty() ) {
00063       q->setError( CollectionPathResolver::Unknown );
00064       q->setErrorText( i18n( "No such collection.") );
00065       q->emitResult();
00066       return;
00067   }
00068 
00069   if ( mPathToId ) {
00070     const QString currentPart = mPathParts.takeFirst();
00071     bool found = false;
00072     foreach ( const Collection &c, cols ) {
00073       if ( c.name() == currentPart ) {
00074         mCurrentNode = c;
00075         found = true;
00076         break;
00077       }
00078     }
00079     if ( !found ) {
00080       q->setError( CollectionPathResolver::Unknown );
00081       q->setErrorText( i18n( "No such collection.") );
00082       q->emitResult();
00083       return;
00084     }
00085     if ( mPathParts.isEmpty() ) {
00086       mColId = mCurrentNode.id();
00087       q->emitResult();
00088       return;
00089     }
00090     nextJob = new CollectionFetchJob( mCurrentNode, CollectionFetchJob::FirstLevel, q );
00091   } else {
00092     Collection col = list->collections().first();
00093     mCurrentNode = Collection( col.parent() );
00094     mPathParts.prepend( col.name() );
00095     if ( mCurrentNode == Collection::root() ) {
00096       q->emitResult();
00097       return;
00098     }
00099     nextJob = new CollectionFetchJob( mCurrentNode, CollectionFetchJob::Base, q );
00100   }
00101   q->connect( nextJob, SIGNAL(result(KJob*)), q, SLOT(jobResult(KJob*)) );
00102 }
00103 
00104 CollectionPathResolver::CollectionPathResolver(const QString & path, QObject * parent)
00105   : Job( new CollectionPathResolverPrivate( this ), parent )
00106 {
00107   Q_D( CollectionPathResolver );
00108 
00109   d->mPathToId = true;
00110   d->mPath = path;
00111   if ( d->mPath.startsWith( pathDelimiter() )  )
00112     d->mPath = d->mPath.right( d->mPath.length() - pathDelimiter().length() );
00113   if ( d->mPath.endsWith( pathDelimiter() )  )
00114     d->mPath = d->mPath.left( d->mPath.length() - pathDelimiter().length() );
00115 
00116   d->mPathParts = d->mPath.split( pathDelimiter() );
00117   d->mCurrentNode = Collection::root();
00118 }
00119 
00120 CollectionPathResolver::CollectionPathResolver(const Collection & collection, QObject * parent)
00121   : Job( new CollectionPathResolverPrivate( this ), parent )
00122 {
00123   Q_D( CollectionPathResolver );
00124 
00125   d->mPathToId = false;
00126   d->mColId = collection.id();
00127   d->mCurrentNode = collection;
00128 }
00129 
00130 CollectionPathResolver::~CollectionPathResolver()
00131 {
00132 }
00133 
00134 Collection::Id CollectionPathResolver::collection() const
00135 {
00136   Q_D( const CollectionPathResolver );
00137 
00138   return d->mColId;
00139 }
00140 
00141 QString CollectionPathResolver::path() const
00142 {
00143   Q_D( const CollectionPathResolver );
00144 
00145   if ( d->mPathToId )
00146     return d->mPath;
00147   return d->mPathParts.join( pathDelimiter() );
00148 }
00149 
00150 QString CollectionPathResolver::pathDelimiter()
00151 {
00152   return QLatin1String( "/" );
00153 }
00154 
00155 void CollectionPathResolver::doStart()
00156 {
00157   Q_D( CollectionPathResolver );
00158 
00159   CollectionFetchJob *job = 0;
00160   if ( d->mPathToId ) {
00161     if ( d->mPath.isEmpty() ) {
00162       d->mColId = Collection::root().id();
00163       emitResult();
00164       return;
00165     }
00166     job = new CollectionFetchJob( d->mCurrentNode, CollectionFetchJob::FirstLevel, this );
00167   } else {
00168     if ( d->mColId == 0 ) {
00169       d->mColId = Collection::root().id();
00170       emitResult();
00171       return;
00172     }
00173     job = new CollectionFetchJob( d->mCurrentNode, CollectionFetchJob::Base, this );
00174   }
00175   connect( job, SIGNAL(result(KJob*)), SLOT(jobResult(KJob*)) );
00176 }
00177 
00178 //@endcond
00179 
00180 #include "collectionpathresolver_p.moc"

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