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filteractionjob.cpp
1 /*
2  Copyright (c) 2009 Constantin Berzan <exit3219@gmail.com>
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 "filteractionjob_p.h"
21 
22 #include <akonadi/collection.h>
23 #include <akonadi/itemfetchjob.h>
24 #include <akonadi/itemfetchscope.h>
25 
26 #include <KDebug>
27 
28 using namespace Akonadi;
29 
30 class Akonadi::FilterActionJob::Private
31 {
32  public:
33  Private( FilterActionJob *qq )
34  : q( qq ), functor( 0 )
35  {
36  }
37 
38  ~Private()
39  {
40  delete functor;
41  }
42 
43  FilterActionJob *q;
44  Collection collection;
45  Item::List items;
46  FilterAction *functor;
47  ItemFetchScope fetchScope;
48 
49  // slots:
50  void fetchResult( KJob *job );
51 
52  void traverseItems();
53 };
54 
55 void FilterActionJob::Private::fetchResult( KJob *job )
56 {
57  if ( job->error() ) {
58  // KCompositeJob takes care of errors.
59  return;
60  }
61 
62  ItemFetchJob *fjob = dynamic_cast<ItemFetchJob*>( job );
63  Q_ASSERT( fjob );
64  Q_ASSERT( items.isEmpty() );
65  items = fjob->items();
66  traverseItems();
67 }
68 
69 void FilterActionJob::Private::traverseItems()
70 {
71  Q_ASSERT( functor );
72  kDebug() << "Traversing" << items.count() << "items.";
73  foreach ( const Item &item, items ) {
74  if ( functor->itemAccepted( item ) ) {
75  functor->itemAction( item, q );
76  kDebug() << "Added subjob for item" << item.id();
77  }
78  }
79  if ( q->subjobs().isEmpty() ) {
80  kDebug() << "No subjobs; I am done";
81  } else {
82  kDebug() << "Have subjobs; Done when last of them is";
83  }
84  q->commit();
85 }
86 
87 FilterAction::~FilterAction()
88 {
89 }
90 
91 FilterActionJob::FilterActionJob( const Item &item, FilterAction *functor, QObject *parent )
92  : TransactionSequence( parent ), d( new Private( this ) )
93 {
94  d->functor = functor;
95  d->items << item;
96 }
97 
98 FilterActionJob::FilterActionJob( const Item::List &items, FilterAction *functor, QObject *parent )
99  : TransactionSequence( parent ), d( new Private( this ) )
100 {
101  d->functor = functor;
102  d->items = items;
103 }
104 
105 FilterActionJob::FilterActionJob( const Collection &collection,
106  FilterAction *functor, QObject *parent )
107  : TransactionSequence( parent ), d( new Private( this ) )
108 {
109  d->functor = functor;
110  Q_ASSERT( collection.isValid() );
111  d->collection = collection;
112 }
113 
114 FilterActionJob::~FilterActionJob()
115 {
116  delete d;
117 }
118 
119 void FilterActionJob::doStart()
120 {
121  if ( d->collection.isValid() ) {
122  kDebug() << "Fetching collection" << d->collection.id();
123  ItemFetchJob *fjob = new ItemFetchJob( d->collection, this );
124  Q_ASSERT( d->functor );
125  d->fetchScope = d->functor->fetchScope();
126  fjob->setFetchScope( d->fetchScope );
127  connect( fjob, SIGNAL(result(KJob*)), this, SLOT(fetchResult(KJob*)) );
128  } else {
129  d->traverseItems();
130  }
131 }
132 
133 #include "moc_filteractionjob_p.cpp"
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