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Diffstat (limited to 'kio/kfile/kfiletreeview.cpp')
| -rw-r--r-- | kio/kfile/kfiletreeview.cpp | 677 |
1 files changed, 677 insertions, 0 deletions
diff --git a/kio/kfile/kfiletreeview.cpp b/kio/kfile/kfiletreeview.cpp new file mode 100644 index 000000000..542e80d5b --- /dev/null +++ b/kio/kfile/kfiletreeview.cpp @@ -0,0 +1,677 @@ +/* This file is part of the KDEproject + Copyright (C) 2000 David Faure <[email protected]> + 2000 Carsten Pfeiffer <[email protected]> + + 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 <qapplication.h> +#include <qheader.h> +#include <qtimer.h> +#include <kdebug.h> +#include <kdirnotify_stub.h> +#include <kglobalsettings.h> +#include <kfileitem.h> +#include <kfileview.h> +#include <kmimetype.h> +#include <kstandarddirs.h> +#include <stdlib.h> +#include <assert.h> +#include <kio/job.h> +#include <kio/global.h> +#include <kurldrag.h> +#include <kiconloader.h> + + +#include "kfiletreeview.h" +#include "kfiletreebranch.h" +#include "kfiletreeviewitem.h" + +KFileTreeView::KFileTreeView( QWidget *parent, const char *name ) + : KListView( parent, name ), + m_wantOpenFolderPixmaps( true ), + m_toolTip( this ) +{ + setDragEnabled(true); + setSelectionModeExt( KListView::Single ); + + m_animationTimer = new QTimer( this ); + connect( m_animationTimer, SIGNAL( timeout() ), + this, SLOT( slotAnimation() ) ); + + m_currentBeforeDropItem = 0; + m_dropItem = 0; + + m_autoOpenTimer = new QTimer( this ); + connect( m_autoOpenTimer, SIGNAL( timeout() ), + this, SLOT( slotAutoOpenFolder() ) ); + + /* The executed-Slot only opens a path, while the expanded-Slot populates it */ + connect( this, SIGNAL( executed( QListViewItem * ) ), + this, SLOT( slotExecuted( QListViewItem * ) ) ); + connect( this, SIGNAL( expanded ( QListViewItem *) ), + this, SLOT( slotExpanded( QListViewItem *) )); + connect( this, SIGNAL( collapsed( QListViewItem *) ), + this, SLOT( slotCollapsed( QListViewItem* ))); + + + /* connections from the konqtree widget */ + connect( this, SIGNAL( selectionChanged() ), + this, SLOT( slotSelectionChanged() ) ); + connect( this, SIGNAL( onItem( QListViewItem * )), + this, SLOT( slotOnItem( QListViewItem * ) ) ); + connect( this, SIGNAL(itemRenamed(QListViewItem*, const QString &, int)), + this, SLOT(slotItemRenamed(QListViewItem*, const QString &, int))); + + + m_bDrag = false; + m_branches.setAutoDelete( true ); + + m_openFolderPixmap = DesktopIcon( "folder_open",KIcon::SizeSmall,KIcon::ActiveState ); +} + +KFileTreeView::~KFileTreeView() +{ + // we must make sure that the KFileTreeViewItems are deleted _before_ the + // branches are deleted. Otherwise, the KFileItems would be destroyed + // and the KFileTreeViewItems had dangling pointers to them. + hide(); + clear(); + m_branches.clear(); // finally delete the branches and KFileItems +} + + +bool KFileTreeView::isValidItem( QListViewItem *item) +{ + if (!item) + return false; + QPtrList<QListViewItem> lst; + QListViewItemIterator it( this ); + while ( it.current() ) + { + if ( it.current() == item ) + return true; + ++it; + } + return false; +} + +void KFileTreeView::contentsDragEnterEvent( QDragEnterEvent *ev ) +{ + if ( ! acceptDrag( ev ) ) + { + ev->ignore(); + return; + } + ev->acceptAction(); + m_currentBeforeDropItem = selectedItem(); + + QListViewItem *item = itemAt( contentsToViewport( ev->pos() ) ); + if( item ) + { + m_dropItem = item; + m_autoOpenTimer->start( KFileView::autoOpenDelay() ); + } + else + { + m_dropItem = 0; +} +} + +void KFileTreeView::contentsDragMoveEvent( QDragMoveEvent *e ) +{ + if( ! acceptDrag( e ) ) + { + e->ignore(); + return; + } + e->acceptAction(); + + + QListViewItem *afterme; + QListViewItem *parent; + + findDrop( e->pos(), parent, afterme ); + + // "afterme" is 0 when aiming at a directory itself + QListViewItem *item = afterme ? afterme : parent; + + if( item && item->isSelectable() ) + { + setSelected( item, true ); + if( item != m_dropItem ) { + m_autoOpenTimer->stop(); + m_dropItem = item; + m_autoOpenTimer->start( KFileView::autoOpenDelay() ); + } + } + else + { + m_autoOpenTimer->stop(); + m_dropItem = 0; + } +} + +void KFileTreeView::contentsDragLeaveEvent( QDragLeaveEvent * ) +{ + // Restore the current item to what it was before the dragging (#17070) + if ( isValidItem(m_currentBeforeDropItem) ) + { + setSelected( m_currentBeforeDropItem, true ); + ensureItemVisible( m_currentBeforeDropItem ); + } + else if ( isValidItem(m_dropItem) ) + setSelected( m_dropItem, false ); // no item selected + m_currentBeforeDropItem = 0; + m_dropItem = 0; + +} + +void KFileTreeView::contentsDropEvent( QDropEvent *e ) +{ + + m_autoOpenTimer->stop(); + m_dropItem = 0; + + kdDebug(250) << "contentsDropEvent !" << endl; + if( ! acceptDrag( e ) ) { + e->ignore(); + return; + } + + e->acceptAction(); + QListViewItem *afterme; + QListViewItem *parent; + findDrop(e->pos(), parent, afterme); + + //kdDebug(250) << " parent=" << (parent?parent->text(0):QString::null) + // << " afterme=" << (afterme?afterme->text(0):QString::null) << endl; + + if (e->source() == viewport() && itemsMovable()) + movableDropEvent(parent, afterme); + else + { + emit dropped(e, afterme); + emit dropped(this, e, afterme); + emit dropped(e, parent, afterme); + emit dropped(this, e, parent, afterme); + + KURL::List urls; + KURLDrag::decode( e, urls ); + emit dropped( this, e, urls ); + + KURL parentURL; + if( parent ) + parentURL = static_cast<KFileTreeViewItem*>(parent)->url(); + else + // can happen when dropping above the root item + // Should we choose the first branch in such a case ?? + return; + + emit dropped( urls, parentURL ); + emit dropped( this , e, urls, parentURL ); + } +} + +bool KFileTreeView::acceptDrag(QDropEvent* e ) const +{ + + bool ancestOK= acceptDrops(); + // kdDebug(250) << "Do accept drops: " << ancestOK << endl; + ancestOK = ancestOK && itemsMovable(); + // kdDebug(250) << "acceptDrag: " << ancestOK << endl; + // kdDebug(250) << "canDecode: " << KURLDrag::canDecode(e) << endl; + // kdDebug(250) << "action: " << e->action() << endl; + + /* KListView::acceptDrag(e); */ + /* this is what KListView does: + * acceptDrops() && itemsMovable() && (e->source()==viewport()); + * ask acceptDrops and itemsMovable, but not the third + */ + return ancestOK && KURLDrag::canDecode( e ) && + // Why this test? All DnDs are one of those AFAIK (DF) + ( e->action() == QDropEvent::Copy + || e->action() == QDropEvent::Move + || e->action() == QDropEvent::Link ); +} + + + +QDragObject * KFileTreeView::dragObject() +{ + + KURL::List urls; + const QPtrList<QListViewItem> fileList = selectedItems(); + QPtrListIterator<QListViewItem> it( fileList ); + for ( ; it.current(); ++it ) + { + urls.append( static_cast<KFileTreeViewItem*>(it.current())->url() ); + } + QPoint hotspot; + QPixmap pixmap; + if( urls.count() > 1 ){ + pixmap = DesktopIcon( "kmultiple", 16 ); + } + if( pixmap.isNull() ) + pixmap = currentKFileTreeViewItem()->fileItem()->pixmap( 16 ); + hotspot.setX( pixmap.width() / 2 ); + hotspot.setY( pixmap.height() / 2 ); + QDragObject* dragObject = new KURLDrag( urls, this ); + if( dragObject ) + dragObject->setPixmap( pixmap, hotspot ); + return dragObject; +} + + + +void KFileTreeView::slotCollapsed( QListViewItem *item ) +{ + KFileTreeViewItem *kftvi = static_cast<KFileTreeViewItem*>(item); + kdDebug(250) << "hit slotCollapsed" << endl; + if( kftvi && kftvi->isDir()) + { + item->setPixmap( 0, itemIcon(kftvi)); + } +} + +void KFileTreeView::slotExpanded( QListViewItem *item ) +{ + kdDebug(250) << "slotExpanded here !" << endl; + + if( ! item ) return; + + KFileTreeViewItem *it = static_cast<KFileTreeViewItem*>(item); + KFileTreeBranch *branch = it->branch(); + + /* Start the animation for the branch object */ + if( it->isDir() && branch && item->childCount() == 0 ) + { + /* check here if the branch really needs to be populated again */ + kdDebug(250 ) << "starting to open " << it->url().prettyURL() << endl; + startAnimation( it ); + bool branchAnswer = branch->populate( it->url(), it ); + kdDebug(250) << "Branches answer: " << branchAnswer << endl; + if( ! branchAnswer ) + { + kdDebug(250) << "ERR: Could not populate!" << endl; + stopAnimation( it ); + } + } + + /* set a pixmap 'open folder' */ + if( it->isDir() && isOpen( item ) ) + { + kdDebug(250)<< "Setting open Pixmap" << endl; + item->setPixmap( 0, itemIcon( it )); // 0, m_openFolderPixmap ); + } +} + + + +void KFileTreeView::slotExecuted( QListViewItem *item ) +{ + if ( !item ) + return; + /* This opens the dir and causes the Expanded-slot to be called, + * which strolls through the children. + */ + if( static_cast<KFileTreeViewItem*>(item)->isDir()) + { + item->setOpen( !item->isOpen() ); + } +} + + +void KFileTreeView::slotAutoOpenFolder() +{ + m_autoOpenTimer->stop(); + + if ( !isValidItem(m_dropItem) || m_dropItem->isOpen() ) + return; + + m_dropItem->setOpen( true ); + m_dropItem->repaint(); +} + + +void KFileTreeView::slotSelectionChanged() +{ + if ( !m_dropItem ) // don't do this while the dragmove thing + { + } +} + + +KFileTreeBranch* KFileTreeView::addBranch( const KURL &path, const QString& name, + bool showHidden ) +{ + const QPixmap& folderPix = KMimeType::mimeType("inode/directory")->pixmap( KIcon::Desktop,KIcon::SizeSmall ); + + return addBranch( path, name, folderPix, showHidden); +} + +KFileTreeBranch* KFileTreeView::addBranch( const KURL &path, const QString& name, + const QPixmap& pix, bool showHidden ) +{ + kdDebug(250) << "adding another root " << path.prettyURL() << endl; + + /* Open a new branch */ + KFileTreeBranch *newBranch = new KFileTreeBranch( this, path, name, pix, + showHidden ); + return addBranch(newBranch); +} + +KFileTreeBranch *KFileTreeView::addBranch(KFileTreeBranch *newBranch) +{ + connect( newBranch, SIGNAL(populateFinished( KFileTreeViewItem* )), + this, SLOT( slotPopulateFinished( KFileTreeViewItem* ))); + + connect( newBranch, SIGNAL( newTreeViewItems( KFileTreeBranch*, + const KFileTreeViewItemList& )), + this, SLOT( slotNewTreeViewItems( KFileTreeBranch*, + const KFileTreeViewItemList& ))); + + m_branches.append( newBranch ); + return( newBranch ); +} + +KFileTreeBranch *KFileTreeView::branch( const QString& searchName ) +{ + KFileTreeBranch *branch = 0; + QPtrListIterator<KFileTreeBranch> it( m_branches ); + + while ( (branch = it.current()) != 0 ) { + ++it; + QString bname = branch->name(); + kdDebug(250) << "This is the branches name: " << bname << endl; + if( bname == searchName ) + { + kdDebug(250) << "Found branch " << bname << " and return ptr" << endl; + return( branch ); + } + } + return ( 0L ); +} + +KFileTreeBranchList& KFileTreeView::branches() +{ + return( m_branches ); +} + + +bool KFileTreeView::removeBranch( KFileTreeBranch *branch ) +{ + if(m_branches.contains(branch)) + { + delete (branch->root()); + m_branches.remove( branch ); + return true; + } + else + { + return false; + } +} + +void KFileTreeView::setDirOnlyMode( KFileTreeBranch* branch, bool bom ) +{ + if( branch ) + { + branch->setDirOnlyMode( bom ); + } +} + + +void KFileTreeView::slotPopulateFinished( KFileTreeViewItem *it ) +{ + if( it && it->isDir()) + stopAnimation( it ); +} + +void KFileTreeView::slotNewTreeViewItems( KFileTreeBranch* branch, const KFileTreeViewItemList& itemList ) +{ + if( ! branch ) return; + kdDebug(250) << "hitting slotNewTreeViewItems" << endl; + + /* Sometimes it happens that new items should become selected, i.e. if the user + * creates a new dir, he probably wants it to be selected. This can not be done + * right after creating the directory or file, because it takes some time until + * the item appears here in the treeview. Thus, the creation code sets the member + * m_neUrlToSelect to the required url. If this url appears here, the item becomes + * selected and the member nextUrlToSelect will be cleared. + */ + if( ! m_nextUrlToSelect.isEmpty() ) + { + KFileTreeViewItemListIterator it( itemList ); + + bool end = false; + for( ; !end && it.current(); ++it ) + { + KURL url = (*it)->url(); + + if( m_nextUrlToSelect.equals(url, true )) // ignore trailing / on dirs + { + setCurrentItem( static_cast<QListViewItem*>(*it) ); + m_nextUrlToSelect = KURL(); + end = true; + } + } + } +} + +QPixmap KFileTreeView::itemIcon( KFileTreeViewItem *item, int gap ) const +{ + QPixmap pix; + kdDebug(250) << "Setting icon for column " << gap << endl; + + if( item ) + { + /* Check if it is a branch root */ + KFileTreeBranch *brnch = item->branch(); + if( item == brnch->root() ) + { + pix = brnch->pixmap(); + if( m_wantOpenFolderPixmaps && brnch->root()->isOpen() ) + { + pix = brnch->openPixmap(); + } + } + else + { + // TODO: different modes, user Pixmaps ? + pix = item->fileItem()->pixmap( KIcon::SizeSmall ); // , KIcon::DefaultState); + + /* Only if it is a dir and the user wants open dir pixmap and it is open, + * change the fileitem's pixmap to the open folder pixmap. */ + if( item->isDir() && m_wantOpenFolderPixmaps ) + { + if( isOpen( static_cast<QListViewItem*>(item))) + pix = m_openFolderPixmap; + } + } + } + + return pix; +} + + +void KFileTreeView::slotAnimation() +{ + MapCurrentOpeningFolders::Iterator it = m_mapCurrentOpeningFolders.begin(); + MapCurrentOpeningFolders::Iterator end = m_mapCurrentOpeningFolders.end(); + for (; it != end;) + { + KFileTreeViewItem *item = it.key(); + if (!isValidItem(item)) + { + ++it; + m_mapCurrentOpeningFolders.remove(item); + continue; + } + + uint & iconNumber = it.data().iconNumber; + QString icon = QString::fromLatin1( it.data().iconBaseName ).append( QString::number( iconNumber ) ); + // kdDebug(250) << "Loading icon " << icon << endl; + item->setPixmap( 0, DesktopIcon( icon,KIcon::SizeSmall,KIcon::ActiveState )); // KFileTreeViewFactory::instance() ) ); + + iconNumber++; + if ( iconNumber > it.data().iconCount ) + iconNumber = 1; + + ++it; + } +} + + +void KFileTreeView::startAnimation( KFileTreeViewItem * item, const char * iconBaseName, uint iconCount ) +{ + /* TODO: allow specific icons */ + if( ! item ) + { + kdDebug(250) << " startAnimation Got called without valid item !" << endl; + return; + } + + m_mapCurrentOpeningFolders.insert( item, + AnimationInfo( iconBaseName, + iconCount, + itemIcon(item, 0) ) ); + if ( !m_animationTimer->isActive() ) + m_animationTimer->start( 50 ); +} + +void KFileTreeView::stopAnimation( KFileTreeViewItem * item ) +{ + if( ! item ) return; + + kdDebug(250) << "Stoping Animation !" << endl; + + MapCurrentOpeningFolders::Iterator it = m_mapCurrentOpeningFolders.find(item); + if ( it != m_mapCurrentOpeningFolders.end() ) + { + if( item->isDir() && isOpen( item) ) + { + kdDebug(250) << "Setting folder open pixmap !" << endl; + item->setPixmap( 0, itemIcon( item )); + } + else + { + item->setPixmap( 0, it.data().originalPixmap ); + } + m_mapCurrentOpeningFolders.remove( item ); + } + else + { + if( item ) + kdDebug(250)<< "StopAnimation - could not find item " << item->url().prettyURL()<< endl; + else + kdDebug(250)<< "StopAnimation - item is zero !" << endl; + } + if (m_mapCurrentOpeningFolders.isEmpty()) + m_animationTimer->stop(); +} + +KFileTreeViewItem * KFileTreeView::currentKFileTreeViewItem() const +{ + return static_cast<KFileTreeViewItem *>( selectedItem() ); +} + +KURL KFileTreeView::currentURL() const +{ + KFileTreeViewItem *item = currentKFileTreeViewItem(); + if ( item ) + return currentKFileTreeViewItem()->url(); + else + return KURL(); +} + +void KFileTreeView::slotOnItem( QListViewItem *item ) +{ + KFileTreeViewItem *i = static_cast<KFileTreeViewItem *>( item ); + if( i ) + { + const KURL url = i->url(); + if ( url.isLocalFile() ) + emit onItem( url.path() ); + else + emit onItem( url.prettyURL() ); + } +} + +void KFileTreeView::slotItemRenamed(QListViewItem* item, const QString &name, int col) +{ + (void) item; + kdDebug(250) << "Do not bother: " << name << col << endl; +} + +KFileTreeViewItem *KFileTreeView::findItem( const QString& branchName, const QString& relUrl ) +{ + KFileTreeBranch *br = branch( branchName ); + return( findItem( br, relUrl )); +} + +KFileTreeViewItem *KFileTreeView::findItem( KFileTreeBranch* brnch, const QString& relUrl ) +{ + KFileTreeViewItem *ret = 0; + if( brnch ) + { + KURL url = brnch->rootUrl(); + + if( ! relUrl.isEmpty() && QDir::isRelativePath(relUrl) ) + { + QString partUrl( relUrl ); + + if( partUrl.endsWith("/")) + partUrl.truncate( relUrl.length()-1 ); + + url.addPath( partUrl ); + + kdDebug(250) << "assembled complete dir string " << url.prettyURL() << endl; + + KFileItem *fi = brnch->findByURL( url ); + if( fi ) + { + ret = static_cast<KFileTreeViewItem*>( fi->extraData( brnch )); + kdDebug(250) << "Found item !" <<ret << endl; + } + } + else + { + ret = brnch->root(); + } + } + return( ret ); +} + +/////////////////////////////////////////////////////////////////// +/////////////////////////////////////////////////////////////////// + + +void KFileTreeViewToolTip::maybeTip( const QPoint & ) +{ +#if 0 + QListViewItem *item = m_view->itemAt( point ); + if ( item ) { + QString text = static_cast<KFileViewItem*>( item )->toolTipText(); + if ( !text.isEmpty() ) + tip ( m_view->itemRect( item ), text ); + } +#endif +} + +void KFileTreeView::virtual_hook( int id, void* data ) +{ KListView::virtual_hook( id, data ); } + +#include "kfiletreeview.moc" |