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akonadi

entitylistview.cpp

00001 /*
00002     Copyright (c) 2006 - 2007 Volker Krause <vkrause@kde.org>
00003     Copyright (c) 2008 Stephen Kelly <steveire@gmail.com>
00004     Copyright (c) 2009 Kevin Ottens <ervin@kde.org>
00005 
00006     This library is free software; you can redistribute it and/or modify it
00007     under the terms of the GNU Library General Public License as published by
00008     the Free Software Foundation; either version 2 of the License, or (at your
00009     option) any later version.
00010 
00011     This library is distributed in the hope that it will be useful, but WITHOUT
00012     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00013     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
00014     License for more details.
00015 
00016     You should have received a copy of the GNU Library General Public License
00017     along with this library; see the file COPYING.LIB.  If not, write to the
00018     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
00019     02110-1301, USA.
00020 */
00021 
00022 #include "entitylistview.h"
00023 
00024 #include "dragdropmanager_p.h"
00025 
00026 #include <QtCore/QDebug>
00027 #include <QtCore/QTimer>
00028 #include <QtGui/QApplication>
00029 #include <QtGui/QDragMoveEvent>
00030 #include <QtGui/QHeaderView>
00031 #include <QtGui/QMenu>
00032 
00033 #include <KAction>
00034 #include <KLocale>
00035 #include <KMessageBox>
00036 #include <KUrl>
00037 #include <KXMLGUIFactory>
00038 
00039 #include <kdebug.h>
00040 #include <kxmlguiclient.h>
00041 
00042 #include <akonadi/collection.h>
00043 #include <akonadi/control.h>
00044 #include <akonadi/item.h>
00045 #include <akonadi/entitytreemodel.h>
00046 
00047 #include <progressspinnerdelegate_p.h>
00048 
00049 using namespace Akonadi;
00050 
00054 class EntityListView::Private
00055 {
00056 public:
00057   Private( EntityListView *parent )
00058       : mParent( parent ), mDragDropManager( new DragDropManager( mParent ) ), mXmlGuiClient( 0 )
00059   {
00060   }
00061 
00062   void init();
00063   void itemClicked( const QModelIndex& );
00064   void itemDoubleClicked( const QModelIndex& );
00065   void itemCurrentChanged( const QModelIndex& );
00066 
00067   EntityListView *mParent;
00068   DragDropManager *mDragDropManager;
00069   KXMLGUIClient *mXmlGuiClient;
00070 };
00071 
00072 void EntityListView::Private::init()
00073 {
00074   mParent->setEditTriggers( QAbstractItemView::EditKeyPressed );
00075   mParent->setAcceptDrops( true );
00076   mParent->setDropIndicatorShown( true );
00077   mParent->setDragDropMode( DragDrop );
00078   mParent->setDragEnabled( true );
00079 
00080   mParent->connect( mParent, SIGNAL( clicked( const QModelIndex& ) ),
00081                     mParent, SLOT( itemClicked( const QModelIndex& ) ) );
00082   mParent->connect( mParent, SIGNAL( doubleClicked( const QModelIndex& ) ),
00083                     mParent, SLOT( itemDoubleClicked( const QModelIndex& ) ) );
00084 
00085   DelegateAnimator *animator = new DelegateAnimator(mParent);
00086   ProgressSpinnerDelegate *customDelegate = new ProgressSpinnerDelegate(animator, mParent);
00087   mParent->setItemDelegate(customDelegate);
00088 
00089   Control::widgetNeedsAkonadi( mParent );
00090 }
00091 
00092 void EntityListView::Private::itemClicked( const QModelIndex &index )
00093 {
00094   if ( !index.isValid() )
00095     return;
00096 
00097   const Collection collection = index.model()->data( index, EntityTreeModel::CollectionRole ).value<Collection>();
00098   if ( collection.isValid() ) {
00099     emit mParent->clicked( collection );
00100   } else {
00101     const Item item = index.model()->data( index, EntityTreeModel::ItemRole ).value<Item>();
00102     if ( item.isValid() )
00103       emit mParent->clicked( item );
00104   }
00105 }
00106 
00107 void EntityListView::Private::itemDoubleClicked( const QModelIndex &index )
00108 {
00109   if ( !index.isValid() )
00110     return;
00111 
00112   const Collection collection = index.model()->data( index, EntityTreeModel::CollectionRole ).value<Collection>();
00113   if ( collection.isValid() ) {
00114     emit mParent->doubleClicked( collection );
00115   } else {
00116     const Item item = index.model()->data( index, EntityTreeModel::ItemRole ).value<Item>();
00117     if ( item.isValid() )
00118       emit mParent->doubleClicked( item );
00119   }
00120 }
00121 
00122 void EntityListView::Private::itemCurrentChanged( const QModelIndex &index )
00123 {
00124   if ( !index.isValid() )
00125     return;
00126 
00127   const Collection collection = index.model()->data( index, EntityTreeModel::CollectionRole ).value<Collection>();
00128   if ( collection.isValid() ) {
00129     emit mParent->currentChanged( collection );
00130   } else {
00131     const Item item = index.model()->data( index, EntityTreeModel::ItemRole ).value<Item>();
00132     if ( item.isValid() )
00133       emit mParent->currentChanged( item );
00134   }
00135 }
00136 
00137 EntityListView::EntityListView( QWidget * parent )
00138   : QListView( parent ),
00139     d( new Private( this ) )
00140 {
00141   setSelectionMode( QAbstractItemView::SingleSelection );
00142   d->init();
00143 }
00144 
00145 EntityListView::EntityListView( KXMLGUIClient *xmlGuiClient, QWidget * parent )
00146   : QListView( parent ),
00147     d( new Private( this ) )
00148 {
00149   d->mXmlGuiClient = xmlGuiClient;
00150   d->init();
00151 }
00152 
00153 EntityListView::~EntityListView()
00154 {
00155   delete d->mDragDropManager;
00156   delete d;
00157 }
00158 
00159 void EntityListView::setModel( QAbstractItemModel * model )
00160 {
00161   if ( selectionModel() ) {
00162     disconnect( selectionModel(), SIGNAL( currentChanged( const QModelIndex&, const QModelIndex& ) ),
00163            this, SLOT( itemCurrentChanged( const QModelIndex& ) ) );
00164   }
00165 
00166   QListView::setModel( model );
00167 
00168   connect( selectionModel(), SIGNAL( currentChanged( const QModelIndex&, const QModelIndex& ) ),
00169            SLOT( itemCurrentChanged( const QModelIndex& ) ) );
00170 }
00171 
00172 void EntityListView::dragMoveEvent( QDragMoveEvent * event )
00173 {
00174   if ( d->mDragDropManager->dropAllowed( event ) ) {
00175     // All urls are supported. process the event.
00176     QListView::dragMoveEvent( event );
00177     return;
00178   }
00179 
00180   event->setDropAction( Qt::IgnoreAction );
00181 }
00182 
00183 void EntityListView::dropEvent( QDropEvent * event )
00184 {
00185   if ( d->mDragDropManager->processDropEvent( event ) ) {
00186     QListView::dropEvent( event );
00187   }
00188 }
00189 
00190 void EntityListView::contextMenuEvent( QContextMenuEvent * event )
00191 {
00192   if ( !d->mXmlGuiClient )
00193     return;
00194 
00195   const QModelIndex index = indexAt( event->pos() );
00196 
00197   QMenu *popup = 0;
00198 
00199   // check if the index under the cursor is a collection or item
00200   const Collection collection = model()->data( index, EntityTreeModel::CollectionRole ).value<Collection>();
00201   if ( collection.isValid() ) {
00202     popup = static_cast<QMenu*>( d->mXmlGuiClient->factory()->container(
00203                                  QLatin1String( "akonadi_favoriteview_contextmenu" ), d->mXmlGuiClient ) );
00204   } else {
00205     popup = static_cast<QMenu*>( d->mXmlGuiClient->factory()->container(
00206                                    QLatin1String( "akonadi_favoriteview_emptyselection_contextmenu" ), d->mXmlGuiClient) );
00207   }
00208 
00209   if ( popup )
00210     popup->exec( event->globalPos() );
00211 }
00212 
00213 void EntityListView::setXmlGuiClient( KXMLGUIClient *xmlGuiClient )
00214 {
00215   d->mXmlGuiClient = xmlGuiClient;
00216 }
00217 
00218 void EntityListView::startDrag( Qt::DropActions supportedActions )
00219 {
00220   d->mDragDropManager->startDrag( supportedActions );
00221 }
00222 
00223 #include "entitylistview.moc"

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