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tdebase/konqueror/listview/konq_treeviewwidget.cc

308 lines
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/* This file is part of the KDE project
Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
2001, 2002, 2004 Michael Brade <brade@kde.org>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "konq_listview.h"
#include "konq_treeviewwidget.h"
#include <kdirlister.h>
#include <kdebug.h>
template class QDict<KonqListViewDir>;
KonqTreeViewWidget::KonqTreeViewWidget( KonqListView *parent, QWidget *parentWidget)
: KonqBaseListViewWidget( parent, parentWidget )
{
kdDebug(1202) << "+KonqTreeViewWidget" << endl;
setRootIsDecorated( true );
setTreeStepSize( 20 );
connect( m_dirLister, SIGNAL( completed( const KURL & ) ),
this, SLOT( slotCompleted( const KURL & ) ) );
connect( m_dirLister, SIGNAL( clear( const KURL & ) ),
this, SLOT( slotClear( const KURL & ) ) );
connect( m_dirLister, SIGNAL( redirection( const KURL &, const KURL & ) ),
this, SLOT( slotRedirection( const KURL &, const KURL & ) ) );
}
KonqTreeViewWidget::~KonqTreeViewWidget()
{
kdDebug(1202) << "-KonqTreeViewWidget" << endl;
// Remove all items
clear();
// Clear dict
m_dictSubDirs.clear();
}
bool KonqTreeViewWidget::openURL( const KURL &url )
{
//kdDebug(1202) << k_funcinfo << url.prettyURL() << endl;
if ( m_pBrowserView->extension()->urlArgs().reload )
{
QDictIterator<KonqListViewDir> it( m_dictSubDirs );
for (; it.current(); ++it )
if ( it.current()->isOpen() )
m_urlsToReload.append( it.current()->url( -1 ) );
// Someone could press reload while the listing is still in progess
// -> move the items that are not opened yet to m_urlsToReload.
// We don't need to check for doubled items since remove() removes
// all occurrences.
m_urlsToReload += m_urlsToOpen;
m_urlsToOpen.clear();
}
return KonqBaseListViewWidget::openURL( url );
}
void KonqTreeViewWidget::saveState( QDataStream &stream )
{
QStringList openDirList;
QDictIterator<KonqListViewDir> it( m_dictSubDirs );
for (; it.current(); ++it )
{
if ( it.current()->isOpen() )
openDirList.append( it.current()->url( -1 ) );
}
stream << openDirList;
KonqBaseListViewWidget::saveState( stream );
}
void KonqTreeViewWidget::restoreState( QDataStream &stream )
{
stream >> m_urlsToOpen;
KonqBaseListViewWidget::restoreState( stream );
}
void KonqTreeViewWidget::slotCompleted()
{
// This is necessary because after reloading it could happen that a
// previously opened subdirectory was deleted and this would still
// be queued for opening.
m_urlsToReload.clear();
m_urlsToOpen.clear();
KonqBaseListViewWidget::slotCompleted();
}
void KonqTreeViewWidget::slotCompleted( const KURL & _url )
{
// do nothing if the view itself is finished
if ( m_url.equals( _url, true ) )
return;
KonqListViewDir *dir = m_dictSubDirs[ _url.url(-1) ];
if ( dir )
dir->setComplete( true );
else
kdWarning() << "KonqTreeViewWidget::slotCompleted : dir " << _url.url(-1) << " not found in dict!" << endl;
if ( !viewport()->isUpdatesEnabled() )
{
viewport()->setUpdatesEnabled( true );
setUpdatesEnabled( true );
triggerUpdate();
}
}
void KonqTreeViewWidget::slotClear()
{
kdDebug(1202) << k_funcinfo << endl;
m_dictSubDirs.clear();
KonqBaseListViewWidget::slotClear();
}
void KonqTreeViewWidget::slotClear( const KURL & _url )
{
// normally this means we have to delete only the contents of directory _url
// but we are allowed to delete the subdirs as well since the opening of
// subdirs happens level per level. If a subdir is deleted with delete, all
// its children will be deleted by Qt immediately!
kdDebug(1202) << k_funcinfo << _url << endl;
KonqListViewDir *item = m_dictSubDirs[_url.url(-1)];
if ( item )
{
// search all subdirs of _url (item)
QDictIterator<KonqListViewDir> it( m_dictSubDirs );
while ( it.current() )
{
if ( !_url.equals( it.currentKey(), true )
&& _url.isParentOf( it.currentKey() ) )
{
m_urlsToOpen.remove( it.currentKey() );
m_urlsToReload.remove( it.currentKey() );
m_dictSubDirs.remove( it.currentKey() ); // do last, it changes it.currentKey()!!
}
else
++it;
}
// Remark: This code works only if we have exactly one tree which is the
// case for Konqy's treeview. It will break if m_dictSubDirs contains two
// subdirectories where only one of them will have its items deleted by
// the following code.
// delete all child items, their fileitems are no longer valid
QListViewItem *child;
while ( (child = item->firstChild()) )
delete child;
// only if we really deleted something update the statusbar
reportItemCounts();
}
}
void KonqTreeViewWidget::slotRedirection( const KURL &oldUrl, const KURL &newUrl )
{
kdDebug(1202) << k_funcinfo << oldUrl.url() << " -> " << newUrl.url() << endl;
KonqListViewDir *dir = m_dictSubDirs.take( oldUrl.url(-1) );
Q_ASSERT( dir );
m_dictSubDirs.insert( newUrl.url(-1), dir );
// TODO: do we need to rename the fileitem in dir as well?
}
void KonqTreeViewWidget::slotNewItems( const KFileItemList &entries )
{
if (!entries.count())
return;
// Find parent item - it's the same for all the items
QPtrListIterator<KFileItem> kit( entries );
KURL dir( (*kit)->url().upURL() );
KonqListViewDir *parentDir = 0L;
if ( !m_url.equals( dir, true ) ) // ignore trailing slash
parentDir = m_dictSubDirs[ dir.url(-1) ];
if ( !parentDir ) // hack for zeroconf://domain/type/service listed in zeroconf:/type/ dir
{
dir.setHost( QString::null );
parentDir = m_dictSubDirs[ dir.url(-1) ];
}
for ( ; kit.current(); ++kit )
{
KonqListViewDir *dirItem = 0;
KonqListViewItem *fileItem = 0;
if ( parentDir ) // adding under a directory item
{
if ( (*kit)->isDir() )
{
dirItem = new KonqListViewDir( this, parentDir, *kit );
m_dictSubDirs.insert( (*kit)->url().url(-1), dirItem );
}
else
fileItem = new KonqListViewItem( this, parentDir, *kit );
}
else // adding on the toplevel
{
if ( (*kit)->isDir() )
{
dirItem = new KonqListViewDir( this, *kit );
m_dictSubDirs.insert( (*kit)->url().url(-1), dirItem );
}
else
fileItem = new KonqListViewItem( this, *kit );
}
if ( !m_itemFound )
{
if ( fileItem && fileItem->text(0) == m_itemToGoTo )
{
setCurrentItem( fileItem );
m_itemFound = true;
}
else if ( dirItem && dirItem->text(0) == m_itemToGoTo )
{
setCurrentItem( dirItem );
m_itemFound = true;
}
}
if ( !m_itemsToSelect.isEmpty() ) {
QStringList::Iterator tsit = m_itemsToSelect.find( (*kit)->name() );
if ( tsit != m_itemsToSelect.end() ) {
m_itemsToSelect.remove( tsit );
setSelected( fileItem ? fileItem : dirItem, true );
}
}
if ( fileItem && !(*kit)->isMimeTypeKnown() )
m_pBrowserView->lstPendingMimeIconItems().append( fileItem );
if ( dirItem )
{
QString u = (*kit)->url().url( 0 );
if ( m_urlsToOpen.remove( u ) )
dirItem->open( true, false );
else if ( m_urlsToReload.remove( u ) )
dirItem->open( true, true );
}
}
if ( !viewport()->isUpdatesEnabled() )
{
viewport()->setUpdatesEnabled( true );
setUpdatesEnabled( true );
triggerUpdate();
}
// counts for the statusbar
m_pBrowserView->newItems( entries );
slotUpdateBackground();
}
void KonqTreeViewWidget::slotDeleteItem( KFileItem *_fileItem )
{
QString url = _fileItem->url().url(-1);
// Check if this item is in m_dictSubDirs, and if yes, then remove it
slotClear( _fileItem->url() );
m_dictSubDirs.remove( url );
m_urlsToOpen.remove( url );
m_urlsToReload.remove( url );
KonqBaseListViewWidget::slotDeleteItem( _fileItem );
}
void KonqTreeViewWidget::openSubFolder( KonqListViewDir* _dir, bool _reload )
{
m_dirLister->openURL( _dir->item()->url(), true /* keep existing data */, _reload );
slotUpdateBackground();
}
void KonqTreeViewWidget::stopListingSubFolder( KonqListViewDir* _dir )
{
m_dirLister->stop( _dir->item()->url() );
slotUpdateBackground();
}
#include "konq_treeviewwidget.moc"