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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commitce4a32fe52ef09d8f5ff1dd22c001110902b60a2 (patch)
tree5ac38a06f3dde268dc7927dc155896926aaf7012 /kio/kfile/kfiletreebranch.cpp
downloadtdelibs-ce4a32fe52ef09d8f5ff1dd22c001110902b60a2.tar.gz
tdelibs-ce4a32fe52ef09d8f5ff1dd22c001110902b60a2.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'kio/kfile/kfiletreebranch.cpp')
-rw-r--r--kio/kfile/kfiletreebranch.cpp528
1 files changed, 528 insertions, 0 deletions
diff --git a/kio/kfile/kfiletreebranch.cpp b/kio/kfile/kfiletreebranch.cpp
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+++ b/kio/kfile/kfiletreebranch.cpp
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+/* This file is part of the KDEproject
+ Copyright (C) 2000 David Faure <faure@kde.org>
+ 2000 Carsten Pfeiffer <pfeiffer@kde.org>
+ 2002 Klaas Freitag <freitag@suse.de>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License version 2 as published by the Free Software Foundation.
+
+ This library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+
+#include <qfile.h>
+
+#include <kfileitem.h>
+#include <kdebug.h>
+#include <kde_file.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "kfiletreeviewitem.h"
+#include "kfiletreebranch.h"
+
+
+/* --- KFileTreeViewToplevelItem --- */
+KFileTreeBranch::KFileTreeBranch( KFileTreeView *parent, const KURL& url,
+ const QString& name,
+ const QPixmap& pix, bool showHidden,
+ KFileTreeViewItem *branchRoot )
+
+ : KDirLister( false ),
+ m_root( branchRoot ),
+ m_startURL( url ),
+ m_name ( name ),
+ m_rootIcon( pix ),
+ m_openRootIcon( pix ),
+ m_recurseChildren(true),
+ m_showExtensions(true)
+{
+ kdDebug( 250) << "Creating branch for url " << url.prettyURL() << endl;
+
+ /* if non exists, create one */
+ if( ! branchRoot )
+ {
+ m_root = new KFileTreeViewItem( parent,
+ new KFileItem( url, "inode/directory",
+ S_IFDIR ),
+ this );
+ }
+
+ m_root->setExpandable( true );
+ m_root->setPixmap( 0, pix );
+ m_root->setText( 0, name );
+
+ setShowingDotFiles( showHidden );
+
+ connect( this, SIGNAL( refreshItems(const KFileItemList&)),
+ this, SLOT ( slotRefreshItems( const KFileItemList& )));
+
+ connect( this, SIGNAL( newItems(const KFileItemList&)),
+ this, SLOT ( addItems( const KFileItemList& )));
+
+ connect( this, SIGNAL( completed(const KURL& )),
+ this, SLOT(slCompleted(const KURL&)));
+
+ connect( this, SIGNAL( started( const KURL& )),
+ this, SLOT( slotListerStarted( const KURL& )));
+
+ connect( this, SIGNAL( deleteItem( KFileItem* )),
+ this, SLOT( slotDeleteItem( KFileItem* )));
+
+ connect( this, SIGNAL( canceled(const KURL&) ),
+ this, SLOT( slotCanceled(const KURL&) ));
+
+ connect( this, SIGNAL( clear()),
+ this, SLOT( slotDirlisterClear()));
+
+ connect( this, SIGNAL( clear(const KURL&)),
+ this, SLOT( slotDirlisterClearURL(const KURL&)));
+
+ connect( this, SIGNAL( redirection( const KURL& , const KURL& ) ),
+ this, SLOT( slotRedirect( const KURL&, const KURL& )));
+
+ m_openChildrenURLs.append( url );
+}
+
+void KFileTreeBranch::setOpenPixmap( const QPixmap& pix )
+{
+ m_openRootIcon = pix;
+
+ if( root()->isOpen())
+ {
+ root()->setPixmap( 0, pix );
+ }
+}
+
+void KFileTreeBranch::slotListerStarted( const KURL &url )
+{
+ /* set the parent correct if it is zero. */
+ kdDebug( 250) << "Starting to list " << url.prettyURL() << endl;
+}
+
+
+KFileTreeViewItem *KFileTreeBranch::parentKFTVItem( KFileItem *item )
+{
+ KFileTreeViewItem *parent = 0;
+
+ if( ! item ) return 0;
+
+ /* If it is a directory, check, if it exists in the dict. If not, go one up
+ * and check again.
+ */
+ KURL url = item->url();
+ // kdDebug(250) << "Item's url is " << url.prettyURL() << endl;
+ KURL dirUrl( url );
+ dirUrl.setFileName( QString::null );
+ // kdDebug(250) << "Directory url is " << dirUrl.prettyURL() << endl;
+
+ parent = findTVIByURL( dirUrl );
+ // kdDebug(250) << "Returning as parent item <" << parent << ">" << endl;
+ return( parent );
+}
+
+
+void KFileTreeBranch::slotRefreshItems( const KFileItemList& list )
+{
+ KFileItemListIterator it( list );
+ kdDebug(250) << "Refreshing " << list.count() << " items !" << endl;
+ KFileItem *currItem;
+ KFileTreeViewItem *item = 0;
+
+ while ( (currItem = it.current()) != 0 )
+ {
+ item = findTVIByURL(currItem->url());
+ if (item) {
+ item->setPixmap(0, item->fileItem()->pixmap( KIcon::SizeSmall ));
+ item->setText( 0, item->fileItem()->text());
+ }
+ ++it;
+ }
+}
+
+void KFileTreeBranch::addItems( const KFileItemList& list )
+{
+ KFileItemListIterator it( list );
+ kdDebug(250) << "Adding " << list.count() << " items !" << endl;
+ KFileItem *currItem;
+ KFileTreeViewItemList treeViewItList;
+ KFileTreeViewItem *parentItem = 0;
+
+ while ( (currItem = it.current()) != 0 )
+ {
+ parentItem = parentKFTVItem( currItem );
+
+
+ /* Only create a new KFileTreeViewItem if it does not yet exist */
+ KFileTreeViewItem *newKFTVI =
+ static_cast<KFileTreeViewItem *>(currItem->extraData( this ));
+
+ if( ! newKFTVI )
+ {
+ newKFTVI = createTreeViewItem( parentItem, currItem );
+ if (!newKFTVI)
+ {
+ // TODO: Don't fail if parentItem == 0
+ ++it;
+ continue;
+ }
+ currItem->setExtraData( this, newKFTVI );
+
+ /* Cut off the file extension in case it is not a directory */
+ if( !m_showExtensions && !currItem->isDir() ) /* Need to cut the extension */
+ {
+ QString name = currItem->text();
+ int mPoint = name.findRev( '.' );
+ if( mPoint > 0 )
+ name = name.left( mPoint );
+ newKFTVI->setText( 0, name );
+ }
+ }
+
+ /* Now try to find out if there are children for dirs in the treeview */
+ /* This stats a directory on the local file system and checks the */
+ /* hardlink entry in the stat-buf. This works only for local directories. */
+ if( dirOnlyMode() && !m_recurseChildren && currItem->isLocalFile( ) && currItem->isDir() )
+ {
+ KURL url = currItem->url();
+ QString filename = url.directory( false, true ) + url.fileName();
+ /* do the stat trick of Carsten. The problem is, that the hardlink
+ * count only contains directory links. Thus, this method only seem
+ * to work in dir-only mode */
+ kdDebug(250) << "Doing stat on " << filename << endl;
+ KDE_struct_stat statBuf;
+ if( KDE_stat( QFile::encodeName( filename ), &statBuf ) == 0 )
+ {
+ int hardLinks = statBuf.st_nlink; /* Count of dirs */
+ kdDebug(250) << "stat succeeded, hardlinks: " << hardLinks << endl;
+ // If the link count is > 2, the directory likely has subdirs. If it's < 2
+ // it's something weird like a mounted SMB share. In that case we don't know
+ // if there are subdirs, thus show it as expandable.
+
+ if( hardLinks != 2 )
+ {
+ newKFTVI->setExpandable(true);
+ }
+ else
+ {
+ newKFTVI->setExpandable(false);
+ }
+ if( hardLinks >= 2 ) // "Normal" directory with subdirs
+ {
+ kdDebug(250) << "Emitting for " << url.prettyURL() << endl;
+ emit( directoryChildCount( newKFTVI, hardLinks-2)); // parentItem, hardLinks-1 ));
+ }
+ }
+ else
+ {
+ kdDebug(250) << "stat of " << filename << " failed !" << endl;
+ }
+ }
+ ++it;
+
+ treeViewItList.append( newKFTVI );
+ }
+
+ emit newTreeViewItems( this, treeViewItList );
+}
+
+KFileTreeViewItem* KFileTreeBranch::createTreeViewItem( KFileTreeViewItem *parent,
+ KFileItem *fileItem )
+{
+ KFileTreeViewItem *tvi = 0;
+ if( parent && fileItem )
+ {
+ tvi = new KFileTreeViewItem( parent,
+ fileItem,
+ this );
+ }
+ else
+ {
+ kdDebug(250) << "createTreeViewItem: Have no parent" << endl;
+ }
+ return( tvi );
+}
+
+void KFileTreeBranch::setChildRecurse( bool t )
+{
+ m_recurseChildren = t;
+ if( t == false )
+ m_openChildrenURLs.clear();
+}
+
+
+void KFileTreeBranch::setShowExtensions( bool visible )
+{
+ m_showExtensions = visible;
+}
+
+bool KFileTreeBranch::showExtensions( ) const
+{
+ return( m_showExtensions );
+}
+
+/*
+ * The signal that tells that a directory was deleted may arrive before the signal
+ * for its children arrive. Thus, we must walk through the children of a dir and
+ * remove them before removing the dir itself.
+ */
+void KFileTreeBranch::slotDeleteItem( KFileItem *it )
+{
+ if( !it ) return;
+ kdDebug(250) << "Slot Delete Item hitted for " << it->url().prettyURL() << endl;
+
+ KFileTreeViewItem *kfti = static_cast<KFileTreeViewItem*>(it->extraData(this));
+
+ if( kfti )
+ {
+ kdDebug( 250 ) << "Child count: " << kfti->childCount() << endl;
+ if( kfti->childCount() > 0 )
+ {
+ KFileTreeViewItem *child = static_cast<KFileTreeViewItem*>(kfti->firstChild());
+
+ while( child )
+ {
+ kdDebug(250) << "Calling child to be deleted !" << endl;
+ KFileTreeViewItem *nextChild = static_cast<KFileTreeViewItem*>(child->nextSibling());
+ slotDeleteItem( child->fileItem());
+ child = nextChild;
+ }
+ }
+
+ kdDebug(250) << "Found corresponding KFileTreeViewItem" << endl;
+ if( m_lastFoundURL.equals(it->url(), true ))
+ {
+ m_lastFoundURL = KURL();
+ m_lastFoundItem = 0L;
+ }
+ delete( kfti );
+ }
+ else
+ {
+ kdDebug(250) << "Error: kfiletreeviewitem: "<< kfti << endl;
+ }
+}
+
+
+void KFileTreeBranch::slotCanceled( const KURL& url )
+{
+ // ### anything else to do?
+ // remove the url from the childrento-recurse-list
+ m_openChildrenURLs.remove( url);
+
+ // stop animations etc.
+ KFileTreeViewItem *item = findTVIByURL(url);
+ if (!item) return; // Uh oh...
+ emit populateFinished(item);
+}
+
+void KFileTreeBranch::slotDirlisterClear()
+{
+ kdDebug(250)<< "*** Clear all !" << endl;
+ /* this slots needs to clear all listed items, but NOT the root item */
+ if( m_root )
+ deleteChildrenOf( m_root );
+}
+
+void KFileTreeBranch::slotDirlisterClearURL( const KURL& url )
+{
+ kdDebug(250)<< "*** Clear for URL !" << url.prettyURL() << endl;
+ KFileItem *item = findByURL( url );
+ if( item )
+ {
+ KFileTreeViewItem *ftvi =
+ static_cast<KFileTreeViewItem *>(item->extraData( this ));
+ deleteChildrenOf( ftvi );
+ }
+}
+
+void KFileTreeBranch::deleteChildrenOf( QListViewItem *parent )
+{
+ // for some strange reason, slotDirlisterClearURL() sometimes calls us
+ // with a 0L parent.
+ if ( !parent )
+ return;
+
+ while ( parent->firstChild() )
+ delete parent->firstChild();
+}
+
+void KFileTreeBranch::slotRedirect( const KURL& oldUrl, const KURL&newUrl )
+{
+ if( oldUrl.equals( m_startURL, true ))
+ {
+ m_startURL = newUrl;
+ }
+}
+
+KFileTreeViewItem* KFileTreeBranch::findTVIByURL( const KURL& url )
+{
+ KFileTreeViewItem *resultItem = 0;
+
+ if( m_startURL.equals(url, true) )
+ {
+ kdDebug(250) << "findByURL: Returning root as a parent !" << endl;
+ resultItem = m_root;
+ }
+ else if( m_lastFoundURL.equals( url, true ))
+ {
+ kdDebug(250) << "findByURL: Returning from lastFoundURL!" << endl;
+ resultItem = m_lastFoundItem;
+ }
+ else
+ {
+ kdDebug(250) << "findByURL: searching by dirlister: " << url.url() << endl;
+
+ KFileItem *it = findByURL( url );
+
+ if( it )
+ {
+ resultItem = static_cast<KFileTreeViewItem*>(it->extraData(this));
+ m_lastFoundItem = resultItem;
+ m_lastFoundURL = url;
+ }
+ }
+
+ return( resultItem );
+}
+
+
+void KFileTreeBranch::slCompleted( const KURL& url )
+{
+ kdDebug(250) << "SlotCompleted hit for " << url.prettyURL() << endl;
+ KFileTreeViewItem *currParent = findTVIByURL( url );
+ if( ! currParent ) return;
+
+ kdDebug(250) << "current parent " << currParent << " is already listed: "
+ << currParent->alreadyListed() << endl;
+
+ emit( populateFinished(currParent));
+ emit( directoryChildCount(currParent, currParent->childCount()));
+
+ /* This is a walk through the children of the last populated directory.
+ * Here we start the dirlister on every child of the dir and wait for its
+ * finish. When it has finished, we go to the next child.
+ * This must be done for non local file systems in dirOnly- and Full-Mode
+ * and for local file systems only in full mode, because the stat trick
+ * (see addItem-Method) does only work for dirs, not for files in the directory.
+ */
+ /* Set bit that the parent dir was listed completely */
+ currParent->setListed(true);
+
+ kdDebug(250) << "recurseChildren: " << m_recurseChildren << endl;
+ kdDebug(250) << "isLocalFile: " << m_startURL.isLocalFile() << endl;
+ kdDebug(250) << "dirOnlyMode: " << dirOnlyMode() << endl;
+
+
+ if( m_recurseChildren && (!m_startURL.isLocalFile() || ! dirOnlyMode()) )
+ {
+ bool wantRecurseUrl = false;
+ /* look if the url is in the list for url to recurse */
+ for ( KURL::List::Iterator it = m_openChildrenURLs.begin();
+ it != m_openChildrenURLs.end(); ++it )
+ {
+ /* it is only interesting that the url _is_in_ the list. */
+ if( (*it).equals( url, true ) )
+ wantRecurseUrl = true;
+ }
+
+ KFileTreeViewItem *nextChild = 0;
+ kdDebug(250) << "Recursing " << url.prettyURL() << "? " << wantRecurseUrl << endl;
+
+ if( wantRecurseUrl && currParent )
+ {
+
+ /* now walk again through the tree and populate the children to get +-signs */
+ /* This is the starting point. The visible folder has finished,
+ processing the children has not yet started */
+ nextChild = static_cast<KFileTreeViewItem*>
+ (static_cast<QListViewItem*>(currParent)->firstChild());
+
+ if( ! nextChild )
+ {
+ /* This happens if there is no child at all */
+ kdDebug( 250 ) << "No children to recuse" << endl;
+ }
+
+ /* Since we have listed the children to recurse, we can remove the entry
+ * in the list of the URLs to see the children.
+ */
+ m_openChildrenURLs.remove(url);
+ }
+
+ if( nextChild ) /* This implies that idx > -1 */
+ {
+ /* Next child is defined. We start a dirlister job on every child item
+ * which is a directory to find out how much children are in the child
+ * of the last opened dir
+ */
+
+ /* Skip non directory entries */
+ while( nextChild )
+ {
+ if( nextChild->isDir() && ! nextChild->alreadyListed())
+ {
+ KFileItem *kfi = nextChild->fileItem();
+ if( kfi && kfi->isReadable())
+ {
+ KURL recurseUrl = kfi->url();
+ kdDebug(250) << "Starting to recurse NOW " << recurseUrl.prettyURL() << endl;
+ openURL( recurseUrl, true );
+ }
+ }
+ nextChild = static_cast<KFileTreeViewItem*>(static_cast<QListViewItem*>(nextChild->nextSibling()));
+ // kdDebug(250) << "Next child " << m_nextChild << endl;
+ }
+ }
+ }
+ else
+ {
+ kdDebug(250) << "skipping to recurse in complete-slot" << endl;
+ }
+}
+
+/* This slot is called when a treeviewitem is expanded in the gui */
+bool KFileTreeBranch::populate( const KURL& url, KFileTreeViewItem *currItem )
+{
+ bool ret = false;
+ if( ! currItem )
+ return ret;
+
+ kdDebug(250) << "Populating <" << url.prettyURL() << ">" << endl;
+
+ /* Add this url to the list of urls to recurse for children */
+ if( m_recurseChildren )
+ {
+ m_openChildrenURLs.append( url );
+ kdDebug(250) << "Appending to list " << url.prettyURL() << endl;
+ }
+
+ if( ! currItem->alreadyListed() )
+ {
+ /* start the lister */
+ ret = openURL( url, true );
+ }
+ else
+ {
+ kdDebug(250) << "Children already existing in treeview!" << endl;
+ slCompleted( url );
+ ret = true;
+ }
+ return ret;
+}
+
+void KFileTreeBranch::virtual_hook( int id, void* data )
+{ KDirLister::virtual_hook( id, data ); }
+
+#include "kfiletreebranch.moc"
+