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recursiveitemfetchjob.cpp
1 /*
2  Copyright (c) 2009 Tobias Koenig <tokoe@kde.org>
3 
4  This library is free software; you can redistribute it and/or modify it
5  under the terms of the GNU Library General Public License as published by
6  the Free Software Foundation; either version 2 of the License, or (at your
7  option) any later version.
8 
9  This library is distributed in the hope that it will be useful, but WITHOUT
10  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
12  License for more details.
13 
14  You should have received a copy of the GNU Library General Public License
15  along with this library; see the file COPYING.LIB. If not, write to the
16  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17  02110-1301, USA.
18 */
19 
20 #include "recursiveitemfetchjob.h"
21 
22 #include <akonadi/collectionfetchjob.h>
23 #include <akonadi/collectionfetchscope.h>
24 #include <akonadi/itemfetchjob.h>
25 #include <akonadi/itemfetchscope.h>
26 
27 #include <QtCore/QStringList>
28 #include <QtCore/QVariant>
29 
30 using namespace Akonadi;
31 
32 class RecursiveItemFetchJob::Private
33 {
34  public:
35  Private( const Collection &collection, const QStringList &mimeTypes, RecursiveItemFetchJob *parent )
36  : mParent( parent ), mCollection( collection ), mMimeTypes( mimeTypes ), mFetchCount( 0 )
37  {
38  }
39 
40  void collectionFetchResult( KJob *job )
41  {
42  if ( job->error() ) {
43  mParent->emitResult();
44  return;
45  }
46 
47  const CollectionFetchJob *fetchJob = qobject_cast<CollectionFetchJob*>( job );
48 
49  Collection::List collections = fetchJob->collections();
50  collections.prepend( mCollection );
51 
52  foreach ( const Collection &collection, collections ) {
53  ItemFetchJob *itemFetchJob = new ItemFetchJob( collection, mParent );
54  itemFetchJob->setFetchScope( mFetchScope );
55  mParent->connect( itemFetchJob, SIGNAL(result(KJob*)),
56  mParent, SLOT(itemFetchResult(KJob*)) );
57 
58  mFetchCount++;
59  }
60  }
61 
62  void itemFetchResult( KJob *job )
63  {
64  if ( !job->error() ) {
65  const ItemFetchJob *fetchJob = qobject_cast<ItemFetchJob*>( job );
66 
67  if ( !mMimeTypes.isEmpty() ) {
68  foreach ( const Item &item, fetchJob->items() ) {
69  if ( mMimeTypes.contains( item.mimeType() ) )
70  mItems << item;
71  }
72  } else {
73  mItems << fetchJob->items();
74  }
75  }
76 
77  mFetchCount--;
78 
79  if ( mFetchCount == 0 )
80  mParent->emitResult();
81  }
82 
83  RecursiveItemFetchJob *mParent;
84  Collection mCollection;
85  Item::List mItems;
86  ItemFetchScope mFetchScope;
87  QStringList mMimeTypes;
88 
89  int mFetchCount;
90 };
91 
92 RecursiveItemFetchJob::RecursiveItemFetchJob( const Collection &collection,
93  const QStringList &mimeTypes,
94  QObject * parent )
95  : KJob( parent ), d( new Private( collection, mimeTypes, this ) )
96 {
97 }
98 
99 RecursiveItemFetchJob::~RecursiveItemFetchJob()
100 {
101  delete d;
102 }
103 
104 void RecursiveItemFetchJob::setFetchScope( const ItemFetchScope &fetchScope )
105 {
106  d->mFetchScope = fetchScope;
107 }
108 
109 ItemFetchScope &RecursiveItemFetchJob::fetchScope()
110 {
111  return d->mFetchScope;
112 }
113 
114 void RecursiveItemFetchJob::start()
115 {
116  CollectionFetchJob *job = new CollectionFetchJob( d->mCollection, CollectionFetchJob::Recursive, this );
117 
118  if ( !d->mMimeTypes.isEmpty() )
119  job->fetchScope().setContentMimeTypes( d->mMimeTypes );
120 
121  connect( job, SIGNAL(result(KJob*)), this, SLOT(collectionFetchResult(KJob*)) );
122 }
123 
124 Akonadi::Item::List RecursiveItemFetchJob::items() const
125 {
126  return d->mItems;
127 }
128 
129 #include "moc_recursiveitemfetchjob.cpp"
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